Scroll compressor with double air suction ports

Abstract

The utility model discloses a scroll compressor with double air suction ports. The scroll compressor comprises a shell, a compression assembly and a driving assembly, wherein the compression assembly and the driving assembly are arranged in the shell; the compression assembly comprises a movable vortex and a fixed vortex, and the driving assembly is arranged in the shell; a first air suction port and a second air suction port are further formed in the side face of the shell, the first air suction port is located between the compression assembly and the driving assembly, the second air suction port is located on the lower side of the driving assembly, a baffle ring is arranged in the shell, and the baffle ring is located between the first air suction port and the second air suction port; an exhaust port is formed in the side face of the shell. The scroll compressor has the beneficial effects that the two air suction ports are arranged, so that air entering the scroll compressor is distributed, the driving component positioned on the lower side of the shell is cooled, meanwhile, a large amount of air can be prevented from impacting the compression component, and the service life of the whole scroll compressor is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a scroll compressor with double air inlets. Background Art

[0002] Scroll compressors are widely used in refrigeration, air conditioning, heat pumps and other fields due to their high efficiency, small size, light weight and smooth operation.

[0003] In the prior art, a scroll compressor generally only has one air intake port, which is located on the upper part of the motor. For example, the invention patent with application number 202010266518.5 discloses a scroll compressor, in which an air intake pipe is provided on the side of the shell, and the position of the air intake pipe is located between the compression mechanism and the electric motor. The incoming gas is compressed by the compression mechanism, and the heat of the electric motor is difficult to be carried away by the gas, which will cause the electric motor to be damaged due to excessive temperature. At the same time, when a large amount of mixed gas of refrigerant and air enters the compressor, it will cause liquid hammer to the compression mechanism and damage the scroll. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a scroll compressor with double air intake ports, which distributes the intake air, fully cools the motor, reduces liquid hammer, and prolongs the service life of the entire scroll compressor.

[0005] Specifically, the utility model discloses a scroll compressor with double suction ports, comprising: a shell, a compression assembly and a drive assembly arranged in the shell; the compression assembly comprises a movable scroll and a fixed scroll, and the drive assembly is arranged in the shell; a first suction port and a second suction port are also arranged on the side of the shell, the first suction port is located between the compression assembly and the drive assembly, and the second suction port is located on the lower side of the drive assembly, a baffle ring is arranged in the shell, and the baffle ring is located between the first suction port and the second suction port; an exhaust port is arranged on the side of the shell.

[0006] The benefit of adopting the above technical solution is that by setting two air intake ports, the gas entering the scroll compressor can be distributed, so that the drive component located on the lower side of the shell can be cooled. At the same time, a large amount of gas can be prevented from impacting the compression component, greatly extending the service life of the entire scroll compressor.

[0007] Furthermore, a partition is provided in the shell, the partition is provided on the upper side of the fixed scroll, and an air outlet is provided on the top of the partition.

[0008] The advantage of adopting the above technical solution is that the entire shell interior is divided into a low-pressure chamber and a high-pressure chamber by setting a partition, which can prevent the compressed gas from entering the low-pressure chamber and increase the compression efficiency.

[0009] Furthermore, the first air intake port is connected to a first air intake pipe, the second air intake port is connected to a second air intake pipe, and the first air intake pipe and the second air intake pipe are connected to valves.

[0010] The benefit of adopting the above technical solution is that the valve setting realizes the distribution of gas, and the gas can be reasonably distributed according to the different usage conditions of the scroll compressor, cooling the drive component without affecting the compression efficiency.

[0011] Furthermore, the driving assembly includes a driving motor, and the driving motor includes a rotating shaft, a stator and a mover. The stator is fixed to the retaining ring, and the upper end of the rotating shaft is connected to the movable scroll.

[0012] The benefit of adopting the above technical solution is that there is a gap between the stator and the mover of the drive motor, and the gas entering through the second air intake outlet is cooled by the gap of the drive motor. At the same time, the drive motor drives the shaft to rotate, driving the movable vortex to rotate to complete gas compression.

[0013] Furthermore, the driving assembly also includes a main bearing seat arranged at the lower side of the movable scroll, a thrust plate is arranged on the upper side of the main bearing seat, and the upper surface of the thrust plate has a thrust surface.

[0014] The benefit of adopting the above technical solution is that the thrust surface contacts the movable scroll, limiting the position of the movable scroll and ensuring the stable motion of the movable scroll.

[0015] Furthermore, an oil storage cavity is provided at the bottom of the shell, and an oil passage is provided inside the rotating shaft.

[0016] The benefit of adopting the above technical solution is that the oil storage chamber is used to store lubricating oil, and the lubricating oil enters the upper side through the oil passage in the rotating shaft, lubricates the movable scroll and the thrust plate, reduces wear and increases service life.

[0017] Furthermore, a floating sheet is arranged on the upper side of the air outlet, a fixing piece is arranged on the partition plate, and the floating sheet is arranged to float up and down.

[0018] The benefit of adopting the above technical solution is that the setting of the floating plate can effectively prevent the backflow of high-pressure gas and the reversal caused by the backflow, thereby improving the working efficiency and service life of the scroll compressor.

[0019] Furthermore, a lower bearing and a lower bearing support plate are provided on the lower side of the rotating shaft.

[0020] The benefit of adopting the above technical solution is that a lower bearing and a bearing support plate are provided to support the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required to be used in the embodiments or the description of the prior art will be briefly introduced below.

[0022] Figure 1 This is the overall cross-sectional view of the scroll compressor with double air inlets of the utility model.

[0023] Figure 2 This is an enlarged view of the utility model A

[0024] The reference numerals in the accompanying drawings are as follows:

[0025] Shell 1; oil storage chamber 11; movable scroll 2; main bearing seat 21; thrust plate 22; fixed scroll 3; first air intake port 4; second air intake port 5; retaining ring 6; exhaust port 7; partition plate 8; air outlet 81; floating sheet 82; fixing piece 83; connecting rod 84; driving motor 9; rotating shaft 91; stator 92; mover 93; oil passage 94; lower bearing 95; lower bearing support plate 96. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0027] like Figure 1-2 As shown, the utility model discloses a scroll compressor with double suction ports, comprising: a shell 1, a compression assembly and a drive assembly arranged in the shell 1; the compression assembly comprises a movable scroll 2 and a fixed scroll 3, and the drive assembly is arranged in the shell 1; the shell 1 is also provided with a first suction port 4 and a second suction port 5 on the side, the first suction port 4 is located between the compression assembly and the drive assembly, and the second suction port 5 is located on the lower side of the drive assembly, a retaining ring 6 is provided in the shell 1, and the retaining ring 6 is located between the first suction port 4 and the second suction port 5; the shell 1 is provided with an exhaust port 7 on the side, and the second suction port 5 and the first suction port 4 are arranged on the same or different busbars of the cylindrical shell 1.

[0028] The benefit of adopting the above technical solution is that by setting two air intake ports, the gas entering the scroll compressor can be distributed, so that the drive component located on the lower side of the shell 1 can be cooled. At the same time, a large amount of gas can be prevented from impacting the compression component, thereby greatly extending the service life of the entire scroll compressor.

[0029] In some embodiments, a partition 8 is provided in the shell 1, and the partition 8 is provided on the upper side of the fixed vortex 3. An air outlet 81 is provided on the top of the partition 8. The partition 8 protrudes upward as a whole, covering the fixed vortex at the bottom. A sealing ring and a fixed disk are also provided on the lower side of the partition 8. The fixed disk cooperates with the fixed vortex, and the sealing ring is provided between the partition 8 and the fixed disk, which increases the sealing of the partition 8 and reduces gas overflow.

[0030] The entire shell 1 is divided into a low-pressure chamber and a high-pressure chamber by setting a partition 8, which can prevent the compressed gas from entering the low-pressure chamber, thereby increasing the compression efficiency and playing a certain quieting role, reducing noise during operation.

[0031] Furthermore, the air outlet 81 is provided with a floating plate 82, and the partition 8 is provided with a fixing member 83. The lower end of the fixing member 83 is fixedly connected to the partition 8, a connecting rod 84 is provided in the middle, and a stop block is provided in the upper part. The floating plate 82 is provided on the connecting rod 84 and floats up and down on the connecting rod 84. The air outlet 81 is located on the lower side of the floating plate 82. When the scroll compressor starts to work, the compressed gas lifts the floating plate 82, and the gas passes through. Since the floating plate 82 floats up and down, when the gas on the upper side of the partition 8 needs to flow back, the floating plate 82 will move downward to cover the air outlet 81. This can effectively prevent the backflow of high-pressure gas and the reversal caused by the backflow, thereby improving the working efficiency and service life of the scroll compressor.

[0032] In some embodiments, the first air inlet 4 is connected to a first air inlet pipe, the second air inlet 5 is connected to a second air inlet pipe, the first air inlet pipe is provided with a valve 1, and the second air inlet pipe is provided with a valve 2.

[0033] The benefit of adopting the above technical solution is that the setting of valve one and valve two realizes the distribution of gas, and the gas can be reasonably distributed according to the different usage conditions of the scroll compressor. The gas in the first intake pipe can quickly enter the compression assembly for compression, and the gas in the second intake pipe enters the compression assembly through the gap between the rotor and the stator 92, thereby realizing cooling of the drive assembly and effectively extending the service life of the drive assembly.

[0034] In some embodiments, the driving assembly includes a driving motor 9, and the driving motor 9 includes a rotating shaft 91, a stator 92 and a mover 93. The stator 92 is fixed to the retaining ring 6, and the upper end of the rotating shaft 91 is connected to the movable scroll 2. There is a gap between the rotor and the stator 92. The gas entering through the second air intake port 5 passes through the gap to take away the heat generated by the driving motor 9. There is a gap between the stator 92 and the mover 93 of the driving motor 9. The gas entering through the second air intake port passes through the gap of the driving motor 9 to achieve cooling. At the same time, the driving motor 9 drives the rotating shaft 91 to rotate, driving the movable scroll 2 to rotate to complete the gas compression.

[0035] In some embodiments, the drive assembly also includes a main bearing seat 21 arranged on the lower side of the movable scroll 2, the main bearing seat 21 and a thrust plate 22, the upper surface of the thrust plate 22 has a thrust surface, the thrust surface is in contact with the movable scroll 2, and the position of the movable scroll 2 is limited to ensure the stable movement of the movable scroll 2. A cross slip ring is also provided on the outer side of the main bearing seat 21, which is used to limit the position of the fixed scroll and prevent the fixed scroll from flipping.

[0036] Furthermore, an oil storage chamber 11 is provided at the bottom of the shell 1, an oil passage 94 is provided inside the rotating shaft 91, and an oil suction pump is also installed at the bottom of the shell 1. The lubricating oil enters the upper side through the oil passage 94 in the rotating shaft 91, and lubricates the movable scroll 2 and the thrust plate 22, thereby reducing wear and increasing service life.

[0037] In some embodiments, a lower bearing 95 and a lower bearing support plate 96 are disposed on the lower side of the rotating shaft 91 .

[0038] The benefit of adopting the above technical solution is that a lower bearing and a bearing support plate are provided to play the role of supporting the rotating shaft 91 .

[0039] During the working process of the scroll compressor, the vaporized refrigerant gas enters the first air intake port 4 and the second air intake port 5. The gas entering the first air intake port 4 directly enters the compression component and is compressed by the movable scroll 2 and the fixed scroll 3. The gas entering the second air intake port 5 passes through the drive motor 9 and then enters the compression component, taking away the heat generated by the drive motor 9 to cool the drive motor 9. At the same time, the lubricating oil at the bottom lubricates the operation process of the entire compression component. The setting of the two air intake ports can prevent a large amount of gas from impacting the compression component, thereby greatly extending the service life of the entire scroll compressor.

[0040] For ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the utility model, which all fall within the protection scope of the utility model.

Claims

1. A scroll compressor with double suction ports, characterized in that: include: A shell (1), a compression assembly and a drive assembly arranged in the shell (1); the compression assembly comprises a movable scroll (2) and a fixed scroll (3), and the drive assembly is arranged in the shell (1); a first air intake port (4) and a second air intake port (5) are also arranged on the side of the shell (1), the first air intake port (4) is located between the compression assembly and the drive assembly, and the second air intake port (5) is located on the lower side of the drive assembly; a retaining ring (6) is arranged in the shell (1), and the retaining ring (6) is located between the first air intake port (4) and the second air intake port (5); an exhaust port (7) is arranged on the side of the shell (1).

2. The scroll compressor with double suction ports according to claim 1, characterized in that: A partition plate (8) is arranged in the housing (1), the partition plate (8) is arranged on the upper side of the fixed scroll (3), and an air outlet (81) is arranged at the top of the partition plate (8).

3. The scroll compressor with double suction ports according to claim 1, characterized in that: The first air intake port (4) is connected to a first air intake pipe, the second air intake port (5) is connected to a second air intake pipe, and the first air intake pipe and the second air intake pipe are connected to valves.

4. The scroll compressor with double suction ports according to claim 1, characterized in that: The driving assembly comprises a driving motor (9), wherein the driving motor (9) comprises a rotating shaft (91), a stator (92) and a mover (93), wherein the stator (92) is fixed to the retaining ring (6), and the upper end of the rotating shaft (91) is connected to the movable scroll (2).

5. The scroll compressor with double suction ports according to claim 4, characterized in that: The driving assembly further comprises a main bearing seat (21) arranged at the lower side of the movable scroll (2), a thrust plate (22) being arranged at the upper side of the main bearing seat (21), and an upper surface of the thrust plate (22) having a thrust surface.

6. The scroll compressor with double suction ports according to claim 4, characterized in that: An oil storage chamber (11) is provided at the bottom of the housing (1), and an oil passage (94) is provided inside the rotating shaft (91).

7. The scroll compressor with double suction ports according to claim 2, characterized in that: A floating sheet (82) is provided on the upper side of the air outlet (81), a fixing member (83) is provided on the partition plate (8), and the floating sheet (82) is arranged to float up and down.

8. The scroll compressor with double suction ports according to claim 4, characterized in that: A lower bearing (95) and a lower bearing support plate (96) are provided on the lower side of the rotating shaft (91).

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