Pump body assembly, compressor and air conditioner having the same

Abstract

The present application provides a pump assembly, a compressor, and an air conditioner having the same, comprising a cylinder, a roller structure, a vane structure, and a flow guide structure. The cylinder is provided with a vane groove; the roller structure is movably disposed within the cylinder; the vane structure is movably disposed within the vane groove, the vane structure divides the interior of the cylinder into a high-pressure chamber and a low-pressure chamber, and the vane structure is connected to the roller structure; the first end of the flow guide structure is connected to the high-pressure chamber, and the second end of the flow guide structure is connected to a corresponding position of the vane structure, so that gas in the high-pressure chamber can apply force to the vane structure, and the force is applied in a direction close to the roller structure. According to the pump assembly, compressor, and air conditioner having the same, the vane can be effectively prevented from detaching from the roller.

Description

Technical Field

[0001] The present application belongs to the technical field of air conditioners, and in particular relates to a pump assembly, a compressor, and an air conditioner having the same. Background Art

[0002] At present, when the compressor is operating normally, the vane and roller should always be in contact. The condition for the vane and roller to maintain contact is that the spring presses against the tail end of the vane, always maintaining the force that pushes the vane against the roller. In order to ensure that the roller and the vane are always in contact, this force must be large enough, and the spring stiffness must also be large enough. However, when the spring of the vane compressor contracts, the spring stiffness is too large, resulting in increased compressor power and reduced energy efficiency. It also causes serious wear of the vane and spring, which requires the spring stiffness to be not too large. However, when the compressor operates with low-frequency suction and liquid, the vaporization of the liquid refrigerant will cause a huge change in the pressure of the compression chamber. At this time, the spring cannot have enough force to support the vane to contact the roller, causing the two to separate, and part of the high-pressure gas to leak from between the roller and the vane. Later, due to the elastic force of the spring, the vane and spring come into rapid contact, and there will be a metal knocking "click" sound.

[0003] Therefore, how to provide a pump body assembly, a compressor and an air conditioner having the same that can effectively prevent the sliding vane from separating from the roller has become a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present application is to provide a pump body assembly, a compressor and an air conditioner having the same, which can effectively prevent the sliding vane from separating from the roller.

[0005] In order to solve the above problems, the present application provides a pump body assembly, comprising:

[0006] A cylinder, wherein a sliding vane groove is provided on the cylinder;

[0007] A roller structure, the roller structure is movably arranged in the cylinder;

[0008] The sliding vane structure is movably disposed in the sliding vane groove, the sliding vane structure divides the interior of the cylinder into a high-pressure chamber and a low-pressure chamber, and the sliding vane structure is connected to the roller structure;

[0009] And a guide structure, the first end of the guide structure is connected to the high-pressure chamber, and the second end of the guide structure is connected to the corresponding position of the sliding vane structure, so that the gas in the high-pressure chamber can apply force to the sliding vane structure, and the force direction is close to the roller structure.

[0010] Furthermore, a pressure chamber is provided between the sliding vane structure and the inner wall of the sliding vane groove, the second end of the flow-guiding structure is connected to the pressure chamber, and the volume of the pressure chamber is adjustable.

[0011] Furthermore, a groove is provided on the outer surface of the sliding vane structure, and a pressure chamber is formed between the groove and the inner wall of the sliding vane slot.

[0012] Furthermore, the groove has a first inner wall and a second inner wall arranged opposite to each other, and the first inner wall and the second inner wall are arranged in sequence in a direction away from the central axis of the cylinder; a partition structure is provided on the inner wall of the vane groove, and the partition structure is located between the first inner wall and the second inner wall, and the first inner wall, the partition structure and the inner wall of the vane groove form a pressure chamber; during the movement of the vane structure, the distance between the first inner wall and the partition structure changes to adjust the volume of the pressure chamber.

[0013] Furthermore, the sliding structure has a first active area and a second active area. When the sliding structure moves in the first active area, the notch of the groove is partially or completely located in the high-pressure chamber; when the sliding structure moves in the second active area, the notch of the groove is opposite to the inner wall of the sliding groove, and a pressure chamber is formed.

[0014] Furthermore, the pump body assembly also includes a flange structure, which is arranged at the end of the cylinder. The guide structure includes a guide channel, which is arranged between the flange structure and the end of the cylinder.

[0015] Furthermore, the guide channel includes a guide groove, which is arranged on the flange structure or the cylinder; and / or the cylinder includes an exhaust port, and the first end of the guide channel is connected to the exhaust port; and / or the second end of the guide structure is connected to an end of the pressure chamber away from the center axis of the cylinder.

[0016] Furthermore, the flow-guiding structure includes a silencer cavity.

[0017] According to another aspect of the present application, a compressor is provided, comprising a pump body assembly, which is the above-mentioned pump body assembly.

[0018] According to another aspect of the present application, an air conditioner is provided, comprising a compressor, which is the above-mentioned compressor.

[0019] The pump assembly, compressor, and air conditioner provided herein utilize a flow guide structure to direct the compressor's own exhaust gas to the corresponding position of the vane structure. This allows the compressor to utilize its own pressure to prevent the vane structure from separating from the roller structure when the suction air carries liquid at low frequencies, effectively preventing rattling noises. Furthermore, since the vane does not separate from the roller, high-pressure gas will not leak, effectively preventing cooling loss. This application effectively prevents the vane from separating from the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of the pump assembly in a compressed state according to an embodiment of the present application;

[0021] Figure 2 This is a schematic structural diagram of the pump assembly of an embodiment of the present application when exhaust is completed;

[0022] Figure 3 This is a schematic structural diagram of the pump body assembly of an embodiment of the present application when the sliding vane structure is extended to the longest extent;

[0023] Figure 4 This is a schematic structural diagram of a cylinder according to an embodiment of the present application;

[0024] Figure 5 Schematic diagram of the structure of the sliding plate according to an embodiment of the present application.

[0025] The reference numerals indicate:

[0026] 1. Cylinder; 2. Roller structure; 3. Sliding vane structure; 4. Spring; 5. High-pressure chamber; 6. Pressure chamber; 7. Guide structure; 8. Partition structure; 9. Groove; 10. Exhaust port. DETAILED DESCRIPTION

[0027] See also Figure 1-5 As shown, a pump body assembly includes a cylinder 1, a roller structure 2, a vane structure 3 and a flow guide structure 7, wherein a vane groove is provided on the cylinder 1; the roller structure 2 is movably provided in the cylinder 1; the vane structure 3 is movably provided in the vane groove, the vane structure 3 divides the interior of the cylinder 1 into a high-pressure chamber 5 and a low-pressure chamber, and the vane structure 3 is connected to the roller structure 2; the first end of the flow guide structure 7 is connected to the high-pressure chamber 5, and the second end of the flow guide structure 7 is connected to the corresponding position of the vane structure 3, so that the gas in the high-pressure chamber 5 can exert force on the vane structure 3, and the force is applied in the direction close to the roller structure 2. The present application adopts the method of introducing the exhaust gas of the compressor itself into the corresponding position of the vane structure 3 through the flow guide structure 7, so that when the air is sucked with liquid at low frequency, the vane structure 3 is prevented from separating from the roller structure 2 by its own pressure, thereby effectively preventing the rattling sound, and at the same time, the high-pressure gas will not leak if the vane is not separated from the roller, thereby effectively preventing the loss of cooling capacity. This application can solve the problem of rattling noise that is common at low frequencies; it can also prevent low-frequency cooling capacity loss and cooling capacity fluctuations that are common in compressors. This application can compensate for the insufficient elasticity of spring 4 during low-frequency suction with liquid, and provide sufficient support force for the contact between the slide and spring 4 when the pressure in the high-pressure chamber 5 is too high.

[0028] The present application also discloses some embodiments, in which a pressure chamber 6 is provided between the sliding vane structure 3 and the inner wall of the sliding vane groove, and the second end of the flow guide structure 7 is connected to the pressure chamber 6 , and the volume of the pressure chamber 6 is adjustable.

[0029] This application also discloses some embodiments in which a groove 9 is provided on the outer surface of the vane structure 3. A pressure chamber 6 is formed between the groove 9 and the inner wall of the vane slot. The groove 9 is located on the side of the vane structure 3 near the exhaust port 10, with the opening facing the side wall of the vane slot. Directing gas from the high-pressure chamber 5 into the pressure chamber 6 formed between the groove 9 and the vane slot prevents the vane structure 3 from detaching from the roller structure 2.

[0030] The present application also discloses certain embodiments, wherein the groove 9 comprises a first inner wall and a second inner wall disposed opposite each other, the first inner wall and the second inner wall being arranged in a direction away from the central axis of the cylinder 1. A partition structure 8 is provided on the inner wall of the vane groove, located between the first inner wall and the second inner wall. The first inner wall, the partition structure 8, and the inner wall of the vane groove form a pressure chamber 6. During the movement of the vane structure 3, the distance between the first inner wall and the partition structure 8 changes to adjust the volume of the pressure chamber 6. This is equivalent to the pressure chamber 6 and the partition structure 8 forming a piston chamber, and the combination of the vane and the cylinder 1 forms a piston. The exhaust gas pressure controls the air force within the piston chamber, ensuring that during low-frequency periods, when liquid is easily carried over, the high pressure pushes the vane against the roller, preventing the roller from separating from the vane, effectively preventing rattling noise and cooling loss. The partition structure 8 forms the piston rod of the active pressure chamber 6, and the pressure chamber 6 forms the piston chamber. Compared to the prior art methods of using swing compressors and articulated compressors to solve this problem, the parts processing cost is too high and the equipment requirements are also very high. The assembly method of this application is very simple. The assembly process only involves two parts, and only minor modifications are made to traditional parts. The process is not advanced and the cost is low. The compressor assembly follows the conventional compressor assembly. In addition, when placing the sliding vane, the end of the sliding vane with the groove needs to be placed together with the end of the sliding vane groove with the piston rod of the cylinder 1 to form a compression chamber.

[0031] This application also discloses certain embodiments, wherein the vane structure 3 has a first active zone and a second active zone. When the vane structure 3 is active in the first active zone, the notch of the groove 9 is partially or entirely located within the high-pressure chamber 5. When the vane structure 3 is active in the second active zone, the notch of the groove 9 faces the inner wall of the vane groove, forming a pressure chamber 6. Compressors are prone to inhaling liquid during low-frequency operation. This liquid vaporizes in the high-pressure chamber 5, easily leading to transient high pressure, causing the vane and roller to separate, resulting in rattling noise and cooling loss. This application introduces high pressure into the pressure chamber 6 when the compressor inhales liquid and vaporizes it in the high-pressure chamber 5. Together with the spring 4, it pushes the vane against the roller, preventing the roller from separating. As the roller continues to operate, the gas in the pressure chamber 6 returns to the high-pressure chamber 5 and is discharged along with the exhaust gas, preventing cooling loss and ensuring stable compressor cooling capacity. This application only requires the spring 4 to ensure the reciprocating motion of the vane, which can reduce the stiffness of the spring 4, thereby reducing compressor power. When the vane structure 3 is active in the second active zone, the volume of the pressure chamber can be adjusted as the vane structure 3 moves.

[0032] In this application, the slide groove and the groove 9 formed by the slide form a pressure chamber 6, and the piston rod of the cylinder 1 changes the size of the piston's inner cavity. The guide structure 7 connects the exhaust port 10 and the piston cavity. Figure 3 As shown in the figure, when the compressor runs from angle β to the position where liquid is easily formed, the distance δ is less than or equal to zero, forming a piston cavity, and the compressor runs to Figure 1 If the low-frequency suction carries liquid, the liquid refrigerant in the high-pressure chamber 5 will instantly vaporize, and the pressure in the high-pressure chamber 5 will instantly increase. At this time, the high pressure will pass through the flow hole to the piston chamber. The push rod of the piston chamber is fixed on the cylinder 1. The increased pressure will push the slide tightly against the roller. At this time, the roller slide receives the high-pressure driving force and the elastic force of the spring 4, and it is not easy for the roller slide to separate. The roller will continue to move until the high pressure is completely discharged from the exhaust hole. At the same time, the high pressure in the piston chamber will also be back-pressed into the high-pressure chamber 5 and will also be discharged with the exhaust. Figure 2 position. This ensures that the rollers will not fall off and the high-pressure gas will not leak.

[0033] The present application also discloses some embodiments, in which the pump body assembly further includes a flange structure, which is disposed at the end of the cylinder 1, and the flow guide structure 7 includes a flow guide channel, which is disposed between the flange structure and the end of the cylinder 1. The flange structure includes an upper flange and a lower flange, and the flow guide channel can be opened on the end surface of the upper flange or the lower flange.

[0034] The present application also discloses some embodiments, wherein the guide channel includes a guide groove, which is arranged on the flange structure or the cylinder 1; and / or the cylinder 1 includes an exhaust port 10, and the first end of the guide channel is connected to the exhaust port 10; and / or the second end of the guide structure 7 is connected to an end of the pressure chamber 6 away from the central axis of the cylinder 1.

[0035] This application also discloses some embodiments in which the flow guide structure 7 includes a muffler cavity, which is a muffler resonance cavity. The flow guide structure 7 connected to the exhaust port 10 itself serves as an exhaust muffler cavity structure, reducing the pulsation of the exhaust airflow in the compression chamber and the aerodynamic noise of the compressor. At the same time, it can effectively reduce the noise generated by the resonance of the compressor cavity, realize the exhaust muffler cavity function, and help solve the exhaust noise.

[0036] According to an embodiment of the present application, a compressor is provided, comprising a pump assembly, wherein the pump assembly is the above-mentioned pump assembly. The compressor is a vertical rotary compressor, which is mostly used in room air conditioners.

[0037] According to an embodiment of the present application, an air conditioner is provided, including a compressor, which is the above-mentioned compressor.

[0038] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0039] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. The above are merely preferred embodiments of the present application. It should be noted that those skilled in the art may make various improvements and variations without departing from the technical principles of the present application, and such improvements and variations shall also be considered within the scope of protection of the present application.

Claims

1. A pump assembly, characterized in that: include: A cylinder (1), wherein a slide groove is provided on the cylinder (1); A roller structure (2), the roller structure (2) being movably arranged in the cylinder (1); a sliding vane structure (3), the sliding vane structure (3) being movably disposed in the sliding vane groove, the sliding vane structure (3) dividing the interior of the cylinder (1) into a high-pressure chamber (5) and a low-pressure chamber, and the sliding vane structure (3) being connected to the roller structure (2); and a flow guiding structure (7), wherein a first end of the flow guiding structure (7) is connected to the high-pressure chamber (5), and a second end of the flow guiding structure (7) is connected to a corresponding position of the sliding vane structure (3), so that the gas in the high-pressure chamber (5) can exert a force on the sliding vane structure (3), and the direction of the force is a direction close to the roller structure (2); A pressure chamber (6) is provided between the sliding vane structure (3) and the inner wall of the sliding vane groove, the second end of the flow guide structure (7) is connected to the pressure chamber (6), and the volume of the pressure chamber (6) is adjustable; A groove (9) is provided on the outer surface of the sliding vane structure (3), and the pressure chamber (6) is formed between the groove (9) and the inner wall of the sliding vane groove; The groove (9) has a first inner wall and a second inner wall that are arranged opposite to each other, and the first inner wall and the second inner wall are arranged in sequence in a direction away from the central axis of the cylinder (1); a partition structure (8) is provided on the inner wall of the vane groove, and the partition structure (8) is located between the first inner wall and the second inner wall, and the first inner wall, the partition structure (8) and the inner wall of the vane groove form the pressure chamber (6); during the movement of the vane structure (3), the distance between the first inner wall and the partition structure (8) changes to adjust the volume of the pressure chamber (6); The sliding vane structure (3) has a first active area and a second active area. When the sliding vane structure (3) moves in the first active area, the notch of the groove (9) is partially or completely located in the high-pressure chamber (5); when the sliding vane structure (3) moves in the second active area, the notch of the groove (9) is opposite to the inner wall of the sliding vane groove, thereby forming the pressure chamber (6).

2. The pump assembly according to claim 1, characterized in that: The pump body assembly further comprises a flange structure, the flange structure being arranged at the end of the cylinder (1), and the flow guide structure (7) comprising a flow guide channel, the flow guide channel being arranged between the flange structure and the end of the cylinder (1).

3. The pump assembly according to claim 2, characterized in that: The guide channel includes a guide groove, which is arranged on the flange structure or the cylinder (1); and / or the cylinder (1) includes an exhaust port (10), and the first end of the guide channel is connected to the exhaust port (10); and / or the second end of the guide structure (7) is connected to an end of the pressure chamber (6) away from the central axis of the cylinder (1).

4. The pump assembly according to claim 1, characterized in that: The flow-guiding structure (7) comprises a silencer cavity.

5. A compressor comprising a pump assembly, characterized in that: The pump body assembly is the pump body assembly according to any one of claims 1 to 4.

6. An air conditioner comprising a compressor, characterized in that: The compressor is the compressor described in claim 5.

Images