Compression pump assembly, compressor, air conditioner

Abstract

The present invention provides a compression pump body assembly, a compressor, and an air conditioner, wherein the compression pump body assembly includes a crankshaft, a first muffler, a first flange, a first cylinder, a second flange, a first partition, and a cover plate stacked in sequence along the axial direction of the crankshaft, the cover plate having an airflow accommodating chamber, and also including a first pressure pulsation attenuation channel, the first pressure pulsation attenuation channel passing through the inner cavity of the first muffler and the airflow accommodating chamber, the compressed airflow formed by the first cylinder can be discharged into the inner cavity of the first muffler and then discharged into the motor lower chamber of the compressor through the first pressure pulsation attenuation channel. According to a compression pump body assembly, a compressor, and an air conditioner of the present invention, the exhaust gas from the working chamber is first introduced into the pressure pulsation attenuation channel to reduce the exhaust pressure pulsation before being discharged into the motor lower chamber, thereby effectively reducing the aerodynamic noise in the compressor.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioning, and in particular relates to a compression pump assembly, a compressor, and an air conditioner. Background Art

[0002] Noise from household air conditioners is a significant factor affecting residents' comfort, and compressor noise is the primary source of noise in air conditioning systems. Compressor noise is a complex component, primarily consisting of aerodynamic, mechanical, and electromagnetic noise. Uneven exhaust flow creates pressure pulsations, which not only generate significant aerodynamic noise but also mechanical noise due to the reaction of the gas on the mechanical structure. Therefore, reducing pressure pulsations is crucial for controlling aerodynamic noise.

[0003] Currently, for noise reduction of compressors, a method of setting a silencer chamber (resonance chamber) in the exhaust flow path of the compressor is mostly adopted, but the silencer capability of this method is limited. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to provide a compression pump body assembly, a compressor, and an air conditioner, which first introduces the exhaust gas from the working chamber into the pressure pulsation attenuation channel to reduce the exhaust pressure pulsation and then discharges it into the lower chamber of the motor, thereby effectively reducing the aerodynamic noise in the compressor.

[0005] In order to solve the above problems, the present invention provides a compression pump body assembly, including a crankshaft, a first muffler, a first flange, a first cylinder, a second flange, a first partition, and a cover plate stacked in sequence along the axial direction of the crankshaft, the cover plate having an airflow accommodating chamber, and also including a first pressure pulsation attenuation channel, the first pressure pulsation attenuation channel passing through the inner cavity of the first muffler and the airflow accommodating chamber, the compressed airflow formed by the first cylinder can be discharged into the inner cavity of the first muffler and discharged to the lower chamber of the motor of the compressor after passing through the first pressure pulsation attenuation channel.

[0006] Preferably, the compression pump body assembly further includes a second pressure pulsation attenuation channel, and the airflow accommodating chamber is communicated with the motor lower chamber through the second pressure pulsation attenuation channel.

[0007] Preferably, the first pressure pulsation attenuation channel passes through the inner cavity of the first silencer, the first flange, the first cylinder, the second flange, and the first partition in sequence; and / or, the second pressure pulsation attenuation channel passes through the airflow accommodating cavity, the first partition, the second flange, the first cylinder, the first flange, the mounting skirt of the first silencer, and the lower cavity of the motor in sequence.

[0008] Preferably, the channel wall of the first pressure pulsation attenuation channel has a plurality of blind holes, and the perforation rate of the plurality of blind holes is between 9% and 11%; and / or, the channel wall of the second pressure pulsation attenuation channel has a plurality of holes, and the perforation rate of the plurality of blind holes is between 9% and 11%.

[0009] Preferably, the diameter of the blind hole is D, 2mm≤D≤10mm; and / or the depth of the blind hole is h, 2mm≤h≤5mm.

[0010] Preferably, the total flow rate of the first pressure pulsation attenuation channel and the second pressure pulsation attenuation channel is Vz, the working volume of the first cylinder is Vg, and 0.5≤Vz / Vg≤1.5.

[0011] Preferably, 0.6≤Vz / Vg≤0.9.

[0012] Preferably, the compression pump body assembly further includes a second muffler, and the second pressure pulsation attenuation channel is communicated with the motor lower chamber through the second muffler.

[0013] Preferably, the first cylinder has an air intake port, and the first pressure pulsation attenuation channel and / or the second pressure pulsation attenuation channel are arranged adjacent to the air intake port.

[0014] Preferably, the compression pump body assembly also includes a second baffle and a second cylinder. The first muffler, the first flange, the first cylinder, the second baffle, the second cylinder, the second flange, the first baffle, and the cover plate are stacked in sequence along the axial direction of the crankshaft. The first pressure pulsation attenuation channel passes through the inner cavity of the first muffler and the airflow accommodating chamber. The compressed airflow formed by the first cylinder and the second cylinder can be discharged into the inner cavity of the first muffler and enter the airflow accommodating chamber through the first pressure pulsation attenuation channel and be discharged to the motor lower chamber of the compressor through the second pressure pulsation attenuation channel.

[0015] Preferably, the first pressure pulsation attenuation channel passes through the inner cavity of the first silencer, the first flange, the first cylinder, the second partition, the second cylinder, the second flange, the first partition, and the airflow accommodating cavity in sequence; and / or, the second pressure pulsation attenuation channel passes through the airflow accommodating cavity, the first partition, the second flange, the second cylinder, the second partition, the first cylinder, the first flange, the mounting skirt of the first silencer, and the lower cavity of the motor in sequence.

[0016] The present invention also provides a compressor comprising the above-mentioned compression pump body assembly.

[0017] The present invention also provides an air conditioner comprising the above-mentioned compressor.

[0018] The present invention provides a compression pump body assembly, a compressor, and an air conditioner. After the high-pressure airflow discharged from the first cylinder enters the first muffler, it is not directly discharged into the lower cavity of the motor through the exhaust port constructed thereon after being silenced as in the prior art, but enters the first pressure pulsation attenuation channel for pulsation attenuation before entering the airflow accommodating cavity and finally discharged into the lower cavity of the motor, thereby achieving pulsation attenuation of the high-pressure airflow discharged from the first cylinder, effectively reducing the aerodynamic noise in the compressor, and solving the problem of excessive noise of the compressor, especially the variable frequency compressor, under high-frequency conditions. This technical solution utilizes the pressure loss along the first pressure pulsation attenuation channel to effectively reduce the pressure pulsation of the high-pressure airflow. Although it reduces the exhaust pressure (pressure loss) of the compressor to a certain extent, it is more effective in suppressing the aerodynamic noise of the compressor exhaust. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the disassembled structure of a compression pump assembly according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A schematic structural diagram of the first muffler in FIG;

[0021] Figure 3 for Figure 1 A schematic structural diagram of the first baffle in FIG.

[0022] Figure 4 for Figure 1 Schematic diagram of the structure of the cover plate;

[0023] Figure 5 for Figure 1 Schematic diagram of the flow path of the exhaust gas flow in the compression pump body assembly shown (the arrow in the figure shows the direction of the gas flow);

[0024] Figure 6 A schematic diagram of the flow path of the exhaust airflow of a compression pump assembly in the prior art (dual-cylinder, non-two-stage compression, with arrows in the figure indicating the direction of airflow);

[0025] Figure 7 This is a diagram of the exhaust pressure pulsation frequency of the compression pump assembly using the technical solution of the present invention;

[0026] Figure 8 To adopt Figure 6 The exhaust pressure pulsation frequency diagram of the compression pump assembly;

[0027] Figure 9 In order to adopt the technical solution of the present invention and the existing technical solution ( Figure 6 ) structure noise comparison diagram;

[0028] Figure 10 for Figure 1 Schematic diagram of the corresponding exhaust gas flow path (the arrows in the figure indicate the direction of the airflow);

[0029] Figure 11 A schematic diagram of the exhaust gas flow path corresponding to a compression pump assembly according to another embodiment of the present invention (the arrows in the figure indicate the direction of the gas flow);

[0030] Figure 12 This is a schematic diagram of the exhaust airflow path corresponding to the compression pump body assembly of another embodiment of the present invention (the arrow in the figure shows the airflow direction).

[0031] The reference numerals indicate:

[0032] 1. Crankshaft; 2. First muffler; 21. First through hole; 22. Second through hole; 31. First flange; 311. Third through hole; 32. First cylinder; 33. Second flange; 34. First partition; 341. Fourth through hole; 342. Fifth through hole; 35. Cover plate; 351. Airflow chamber; 36. Second partition; 37. Second cylinder; 4. Second muffler; 100. Second roller; 101. Second vane. DETAILED DESCRIPTION

[0033] See also Figures 1 to 12As shown, according to an embodiment of the present invention, a compression pump body assembly is provided, including a crankshaft 1, a first muffler 2, a first flange 31, a first cylinder 32, a second flange 33, a first partition 34, and a cover plate 35 stacked in sequence along the axial direction of the crankshaft 1, the first cylinder 32 is provided with a first roller (not shown in the figure) and a first slide (not shown in the figure) matching therewith. When the crankshaft 1 is driven to rotate by a driving motor, the first roller, the first cylinder 32 and the first slide form a first working chamber of the pump body assembly, the cover plate 35 has an airflow accommodating chamber 351, and also includes a first pressure pulsation attenuation channel, the first pressure pulsation attenuation channel passes through the inner cavity of the first muffler 2 and the airflow accommodating chamber 351, the compressed airflow formed by the first cylinder 32 can be discharged into the inner cavity of the first muffler 2 and enter the airflow accommodating chamber 351 through the first pressure pulsation attenuation channel and be discharged to the motor lower chamber of the compressor through the second pressure pulsation attenuation channel. In this technical solution, the high-pressure airflow discharged from the first cylinder 32 enters the first silencer 2, and is not directly discharged into the motor lower cavity through the exhaust port constructed thereon after being silenced as in the prior art, but enters the first pressure pulsation attenuation channel for pulsation attenuation before entering the airflow accommodating cavity 351 and finally discharged into the motor lower cavity, thereby achieving pulsation attenuation of the high-pressure airflow discharged from the first cylinder 32, effectively reducing the aerodynamic noise in the compressor, and solving the problem of excessive noise in the compressor, especially the variable frequency compressor, under high-frequency conditions. This technical solution utilizes the pressure loss along the first pressure pulsation attenuation channel to effectively reduce the pressure pulsation of the high-pressure airflow. Although it reduces the exhaust pressure (pressure loss) of the compressor to a certain extent, it is more effective in suppressing the exhaust aerodynamic noise of the compressor. Figure 10 A schematic diagram of the airflow path of the aforementioned technical solution is shown.

[0034] Furthermore, the compression pump body assembly also includes a second pressure pulsation attenuation channel, and the airflow accommodating chamber 351 is connected to the motor lower chamber through the second pressure pulsation attenuation channel. The setting of the second pressure pulsation attenuation channel can, together with the first pressure pulsation attenuation channel, optimize the exhaust path in the pump body assembly and further attenuate the exhaust pressure pulsation.

[0035] The first pressure pulsation attenuation channel and the second pressure pulsation attenuation channel can be implemented, for example, by using pipelines independent of the physical structure of the pump body assembly (such as the first flange 31, the first cylinder 32, the second flange 33 and other components mentioned above). For example, the inventor once added a nearly 10m long pipeline (copper pipe) to the exhaust path of the existing pump body assembly for experimental comparison and found that the airflow pressure pulsation value was greatly reduced compared with the case where the pipe was not extended. This verifies that the technical concept of reducing the airflow pressure pulsation by attenuating the flow path energy is feasible. As a more preferred technical solution, the first pressure pulsation attenuation channel passes through the inner cavity of the first muffler 2, the first flange 31, the first cylinder 32, the second flange 33, and the first partition 34 in sequence; and / or, the second pressure pulsation attenuation channel passes through the airflow accommodating cavity 351, the first partition 34, the second flange 33, the first cylinder 32, the first flange 31, the mounting skirt of the first muffler 2, and the lower cavity of the motor in sequence, that is, the first pressure pulsation attenuation channel and the second pressure pulsation attenuation channel are jointly formed by the flow holes constructed on each stacked component, thereby making the structure of the compression pump body assembly more compact and reasonable.Specifically, for example, based on the various components of the existing compression pump body assembly, the following changes are mainly made: the exhaust hole on the original first muffler 2 that is connected to the lower cavity of the motor is cancelled, and a first through hole 21 is set on its skirt, wherein the first through hole 21 is the opening for connecting the second pressure pulsation attenuation channel with the lower cavity of the motor, and the inner cavity of the first muffler 2 enters the first pressure pulsation attenuation channel through the second through hole 22 set on the first flange 31, that is, compared with the first flange 31 in the prior art, a second through hole 22 adapted to the first pressure pulsation attenuation channel is added to the first flange 31, and at the same time, a third through hole 311 corresponding to the first through hole 21 is added to the first flange 31 to adapt to the second pressure pulsation attenuation channel, and the second through hole 22 and the third through hole 311 on the first flange 31 are opposite in the axial direction of the crankshaft 1. The corresponding through holes are provided to ensure that the first and second pressure pulsation attenuation channels can form two axial flow channels parallel to the axial direction of the crankshaft 1. The first pressure pulsation attenuation channel communicates with the airflow accommodating chamber 351 through a fourth through hole 341 provided on the first baffle 34, while the second pressure pulsation attenuation channel communicates with the airflow accommodating chamber 351 through a fifth through hole 342 provided on the first baffle 34. In other words, the first baffle 34 seals the airflow accommodating chamber 351 on the cover plate 35, and the airflow accommodating chamber 351 forms a flow diversion component for the exhaust gas flow. This can increase the pressure drop of the fluid by diverting the flow direction of the airflow, thereby shortening the flow length of the first and second pressure pulsation attenuation channels while achieving the same pressure pulsation attenuation effect (i.e., achieving the same attenuation effect without requiring excessively long attenuation channels). It is understood that the existing exhaust port on the first flange 31 and the intake port on the first cylinder 32 do not need to be changed or modified.

[0036] The cross-sectional shapes of the first pressure pulsation attenuation channel and the second pressure pulsation attenuation channel can be various, such as circular, square, and as shown in the present application. Figure 1 The arc-shaped waist hole shape shown in is not particularly limited in this application.

[0037] Furthermore, the channel wall of the first pressure pulsation attenuation channel has a plurality of blind holes, and the perforation rate of the plurality of blind holes is between 9% and 11%; and / or, the channel wall of the second pressure pulsation attenuation channel has a plurality of holes, and the perforation rate of the plurality of blind holes is between 9% and 11%, thereby further ensuring both pressure loss and pressure loss not being too large to affect the performance of the compression pump body assembly. Specifically, the aperture of the blind hole is D, 2mm≤D≤10mm; and / or, the hole depth of the blind hole is h, 2mm≤h≤5mm. The aforementioned perforation rate refers to the ratio of the total surface area of the orifices of all blind holes provided on the channel wall of the first pressure pulsation attenuation channel to the total surface area of the channel wall of the first pressure pulsation attenuation channel. Of course, the aforementioned perforation rate has the same meaning as that of the second pressure pulsation attenuation channel, and will not be elaborated here.

[0038] Preferably, the total flow rate of the first pressure pulsation attenuation channel and the second pressure pulsation attenuation channel is Vz, the working volume of the first cylinder 32 is Vg, 0.5≤Vz / Vg≤1.5, and best, 0.6≤Vz / Vg≤0.9, to achieve better silencing effect.

[0039] Furthermore, the compression pump assembly further includes a second muffler 4, and the second pressure pulsation attenuation channel is connected to the motor lower cavity through the second muffler 4, that is, the inner cavity of the second muffler 4 is connected to the second pressure pulsation attenuation channel and a discharge hole is constructed thereon that is connected to the motor lower cavity. Figure 11 As shown, the second muffler 4 is used to perform secondary muffler processing on the exhaust gas that has passed through the first pressure pulsation attenuation channel and the second pressure pulsation attenuation channel, thereby further reducing the noise level. Of course, the second muffler 4 can also be made as follows Figure 12 In the design shown, specifically, the exhaust gas of the first muffler 2 enters the first pressure pulsation attenuation channel via the second muffler 4. This approach is applicable to a compression pump assembly with a double-stage muffler structure.

[0040] Preferably, the first pressure pulsation attenuation channel and / or the second pressure pulsation attenuation channel are arranged adjacent to the suction port to achieve heat exchange between the air flow in the first pressure pulsation attenuation channel and / or the second pressure pulsation attenuation channel and the suction air flow in the suction port, which can increase the temperature of the suction air flow of the compression pump body assembly, thereby improving the liquid hammer problem caused by suction liquid under low-frequency conditions of the compressor.

[0041] Furthermore, the compression pump body assembly also includes a second baffle 36 and a second cylinder 37. The first muffler 2, the first flange 31, the first cylinder 32, the second baffle 36, the second cylinder 37, the second flange 33, the first baffle 34, and the cover plate 35 are stacked in sequence along the axial direction of the crankshaft 1. The second cylinder 37 is provided with a second roller 100 and a corresponding second slide 101. The second roller 100, the second cylinder 37 and the second slide 101 form a second working chamber of the pump body assembly. The first pressure pulsation attenuation channel passes through the inner cavity of the first muffler 2 and the airflow accommodating chamber 351. The compressed airflow formed by the first cylinder 32 and the second cylinder 37 can be discharged into the inner cavity of the first muffler 2 and enter the airflow accommodating chamber 351 through the first pressure pulsation attenuation channel and be discharged to the motor lower chamber of the compressor through the second pressure pulsation attenuation channel. At this time, the first cylinder 32 and the second cylinder 37 form a dual-cylinder compression structure, which is similar to the single-cylinder compression structure (when only the first cylinder 32 is provided). The first pressure pulsation attenuation channel sequentially passes through the inner cavity of the first muffler 2, the first flange 31, the first cylinder 32, the second partition 36, the second cylinder 37, the second flange 33, the first partition 34, and the airflow accommodating chamber 351; and / or, the second pressure pulsation attenuation channel sequentially passes through the airflow accommodating chamber 351, the first partition 34, the second flange 33, the second cylinder 37, the second partition 36, the first cylinder 32, the first flange 31, the mounting skirt of the first muffler 2, and the lower cavity of the motor.

[0042] At this time, the air flow paths in the compression pump assembly of the present invention can be roughly divided into three types, see Figure 5 As shown, the high-pressure exhaust gas in the first cylinder 32 and the second cylinder 37 is collected in the inner cavity of the first muffler 2 via path ①, then enters the first pressure pulsation attenuation channel ② through the second through hole 22 on the first flange 31, and after reaching the first partition 34, enters the airflow receiving chamber 351 through the fourth through hole 341 and enters the second pressure pulsation attenuation channel ③ through the fifth through hole 342, and reaches the first muffler 2 and is discharged to the lower cavity of the motor through the first through hole 21. Compared with the prior art, Figure 6 In the dual-cylinder (non-two-stage) compression pump body assembly shown, the exhaust of the first cylinder and the second cylinder directly enter the lower cavity of the motor through the corresponding exhaust channels. Based on the need to improve the performance of the compressor, the shortest channel pipe length is often selected. However, it can be seen in the present application that the length of the first pressure pulsation attenuation channel and the second pressure pulsation attenuation channel almost runs through the entire axial thickness of the compression pump body assembly, in order to increase the pressure loss by increasing its channel pipe length and thus effectively reduce the aerodynamic noise.

[0043] In order to verify the technical effect of the technical solution of the present invention, the inventors conducted a corresponding comparative test design and obtained the following results: Figures 7 to 9 As shown, the technical solution of the prior art adopts Figure 6 Compression pump assembly shown.

[0044] Figure 7 This is the exhaust pressure pulsation frequency diagram (four points of the exhaust gas flow are selected for detection) of the compression pump assembly using the technical solution structure of the present invention (using only the first muffler 2 and simultaneously provided with the first pressure pulsation attenuation channel and the second pressure pulsation attenuation channel). Figure 8 For a compression pump assembly (such as Figure 6 As shown in the figure (four points are selected for detection of the exhaust gas flow), it can be seen that the first-order pressure pulsation value of the four measuring points on the upper cavity of the compressor motor of the conventional scheme is as high as 2355Pa, and the second-order pressure pulsation value is as high as 275Pa. However, by adopting the technical solution of the present invention, the first-order pressure pulsation value is reduced to 284Pa, and the second-order pressure pulsation value is reduced to 115Pa. It can be seen that the pressure pulsation is significantly reduced by adopting the solution of the present invention. Figure 9 The noise comparison diagram of the two structures shows that the noise level of the solution of the present invention is significantly lower than that of the conventional solution, with an average noise reduction of about 3dB. Therefore, compared with the conventional solution, the solution of the present invention significantly reduces the noise level.

[0045] According to an embodiment of the present invention, a compressor is further provided, comprising the above-mentioned compression pump body assembly.

[0046] According to an embodiment of the present invention, there is also provided an air conditioner comprising the above-mentioned compressor.

[0047] 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.

[0048] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. The above are merely preferred embodiments of the present invention. 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 invention, and such improvements and variations shall also be considered within the scope of protection of the present invention.

Claims

1. A compression pump assembly, characterized in that: The invention comprises a crankshaft (1), a first muffler (2), a first flange (31), a first cylinder (32), a second flange (33), a first partition (34), and a cover plate (35) which are sequentially stacked along the axial direction of the crankshaft (1), wherein the cover plate (35) has an airflow accommodating chamber (351), a first pressure pulsation attenuation channel, the first pressure pulsation attenuation channel penetrates the inner chamber of the first muffler (2) and the airflow accommodating chamber (351), and the compressed air flow formed by the first cylinder (32) can be discharged into the inner chamber of the first muffler (2) and discharged to the motor lower chamber of the compressor through the first pressure pulsation attenuation channel; a second pressure pulsation attenuation channel, wherein the airflow accommodating chamber (351) penetrates the motor lower chamber through the second pressure pulsation attenuation channel; a second partition plate (36), a second cylinder (37), the first muffler (2) The first flange (31), the first cylinder (32), the second partition (36), the second cylinder (37), the second flange (33), the first partition (34), and the cover plate (35) are sequentially stacked along the axial direction of the crankshaft (1); the first pressure pulsation attenuation channel penetrates the inner cavity of the first muffler (2) and the airflow accommodating chamber (351); the compressed air flow formed by the first cylinder (32) and the second cylinder (37) can be discharged into the inner cavity of the first muffler (2) and enter the airflow accommodating chamber (351) through the first pressure pulsation attenuation channel and be discharged to the pressure chamber (351) through the second pressure pulsation attenuation channel. The compressor has a motor lower chamber; the first pressure pulsation attenuation channel sequentially passes through the inner chamber of the first muffler (2), the first flange (31), the first cylinder (32), the second partition (36), the second cylinder (37), the second flange (33), the first partition (34), and the airflow accommodating chamber (351); and / or the second pressure pulsation attenuation channel sequentially passes through the airflow accommodating chamber (351), the first partition (34), the second flange (33), the second cylinder (37), the second partition (36), the first cylinder (32), the first flange (31), the mounting skirt of the first muffler (2), and the motor lower chamber.

2. The compression pump assembly according to claim 1, characterized in that: The channel wall of the first pressure pulsation attenuation channel has multiple blind holes, and the perforation rate of the multiple blind holes is between 9% and 11%; and / or the channel wall of the second pressure pulsation attenuation channel has multiple blind holes, and the perforation rate of the multiple blind holes is between 9% and 11%.

3. The compression pump assembly according to claim 2, characterized in that: The diameter of the blind hole is D, 2mm≤D≤10mm; and / or the depth of the blind hole is h, 2mm≤h≤5mm.

4. The compression pump assembly according to claim 1, characterized in that: The total flow rate of the first pressure pulsation attenuation channel and the second pressure pulsation attenuation channel is Vz, the working volume of the first cylinder (32) is Vg, and 0.5≤Vz / Vg≤1.

5.

5. The compression pump assembly according to claim 4, characterized in that: 0.6≤Vz / Vg≤0.

9.

6. The compression pump assembly according to claim 1, characterized in that: It also includes a second muffler (4), and the second pressure pulsation attenuation channel is connected to the motor lower chamber through the second muffler (4).

7. The compression pump assembly according to claim 1, characterized in that: The first cylinder (32) has an air intake port, and the first pressure pulsation attenuation channel and / or the second pressure pulsation attenuation channel are arranged adjacent to the air intake port.

8. A compressor, comprising a compression pump assembly, characterized in that: The compression pump body assembly is the compression pump body assembly according to any one of claims 1 to 7.

9. An air conditioner comprising a compressor, characterized in that: The compressor is the compressor according to claim 8.

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