Compressor baffle, compressor and air conditioner

Abstract

The present invention discloses a compressor baffle, a compressor and an air conditioner, wherein a groove is provided on the end face of the baffle that bears the impact of the valve plate, so that the baffle is layered in the thickness direction to form a flexible structure. The present invention forms a two-layer stacked flexible structure by providing a groove on the baffle, which can effectively alleviate the impact speed and stress change of the valve plate on the valve seat and the baffle when the valve plate impacts, on the one hand, ensuring the rigidity of the baffle structure, on the other hand, enhancing the ductility of the contact surface side of the valve plate, and helping to alleviate the exhaust valve plate from impacting the valve plate baffle, reducing exhaust resistance, reducing airflow pulsation noise and mechanical noise, and ultimately improving the sound quality of the system. At the same time, it is easier to directly groove the end face of the baffle, and it is more convenient to control the processing accuracy, effectively controlling the production cost, and at the same time improving the production efficiency of this type of baffle.

Description

Technical Field

[0001] The invention relates to the field of air conditioning, and in particular to a compressor baffle, a compressor and an air conditioner. Background Art

[0002] Existing rotary compressors mostly use a reed valve plate plus a baffle to exhaust. After high-pressure gas is compressed in the compression chamber, the exhaust valve plate covering the exhaust port is lifted up by air pressure to discharge the high-pressure gas. In this process, high-frequency fluid noise and the knocking sound of the valve plate hitting the baffle are generated, which is one of the main noises of the compressor. The conventional baffle structure has high rigidity. When high-pressure gas is discharged from the exhaust valve plate, the exhaust valve plate has a large impact force on the baffle, and the air flow pulsates greatly, which manifests as high-frequency transmission sound of the system, causing vibration noise of the connecting pipes of the internal and external machine pipelines of the system, and poor customer experience. Summary of the invention

[0003] In order to solve the defect in the prior art that the baffle structure has high rigidity and is prone to generate noise, the present invention proposes a compressor baffle, a compressor and an air conditioner.

[0004] The present invention provides a compressor baffle, wherein the end surface of the baffle portion that bears the impact of a valve plate is provided with a groove, and the baffle is layered along the thickness direction to form a flexible structure.

[0005] Furthermore, the portion of the baffle plate that bears the impact of the valve plate is bent corresponding to the movement trajectory of the valve plate.

[0006] Preferably, the distance between the boundary point between the vertical part and the bent part of the baffle and the point where the bent part of the baffle faces the center of the exhaust hole is L, the depth of the groove is L0, and the range of L0 is .

[0007] The depth of the groove L0, the thickness of the baffle d, the angle between the midline of the groove and the extension line of the vertical part of the baffle The angle between the groove and the notch along the thickness direction of the baffle The formula is satisfied: .

[0008] Preferably, the ratio of the cross-sectional area of ​​the side opening of the groove to the cross-sectional area of ​​the side of the baffle is in a range of 1 / 3 to 2 / 5.

[0009] Preferably, the cross-section of the side opening of the groove is Y-shaped, U-shaped, rectangular or sawtooth-shaped.

[0010] Furthermore, an elastic member is provided in the groove.

[0011] Preferably, the elastic member is a steel sheet, a spring or rubber.

[0012] The present invention also provides a compressor using the compressor baffle.

[0013] The present invention also provides an air conditioner using the compressor.

[0014] Compared with the prior art, the present invention arranges two layers of stacked flexible structures on the baffle, which can effectively alleviate the impact speed and stress change of the valve plate on the valve seat and the baffle when the valve plate impacts. On the one hand, it ensures the rigidity of the baffle structure, and on the other hand, it enhances the ductility of the contact surface side of the valve plate, which helps to alleviate the impact of the exhaust valve plate on the valve plate baffle, reduce exhaust resistance, reduce airflow pulsation noise and mechanical noise, and ultimately improve the system sound quality; and the exhaust pressure loss of the compressor is small. At the end of exhaust, because the baffle rigidity is appropriately reduced and there is elastic force on the valve plate, the valve plate will close quickly and seal in advance, effectively alleviating the flow of shell gas into the cylinder, reducing compressor noise and improving compressor performance; at the same time, it is easier to directly groove the end face of the baffle, and it is more convenient to control the processing accuracy, effectively controlling the production cost, and at the same time improving the production efficiency of this type of baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is described in detail below with reference to the embodiments and accompanying drawings, wherein:

[0016] Figure 1 It is a side view of a baffle in the prior art;

[0017] Figure 2 is a side view of the baffle of the present invention;

[0018] Figure 3 It is a top view of the baffle of the present invention. DETAILED DESCRIPTION

[0019] like Figure 2 , Figure 3 As shown, the present invention proposes a compressor baffle, the baffle 1 is divided into two sections, one section is a vertical section 12, and the other section is a bent section 11 corresponding to the motion trajectory of the valve plate (or upward offset), and the end face of the end that bears the impact of the valve plate is provided with a groove 2, the baffle 1 is divided into two layers along the thickness direction, so that the end of the baffle 1 is bifurcated along the length direction of the baffle to form a flexible structure that can absorb stress, and the two layers of flexible structures stacked along the thickness direction can effectively alleviate the impact speed and stress changes of the valve plate on the valve seat and the baffle when the valve plate impacts, on the one hand, the rigidity of the baffle structure is guaranteed, on the other hand, the ductility of the contact surface side of the valve plate is enhanced, and it is helpful to alleviate the exhaust valve plate from impacting the valve plate baffle, reduce the exhaust resistance, reduce the airflow pulsation noise and mechanical noise, and finally improve the system sound quality. At the same time, it is easier to directly groove the end face of the baffle, and it is more convenient to control the processing accuracy, which can effectively control the production cost and improve the production efficiency of this type of baffle.

[0020] The depth L0 of the groove 2 and the angle β of the groove have a great influence on the target effect, such as Figure 1 , Figure 2 As shown, in a specific embodiment, when the cross section of the groove side is Y-shaped, the depth L0 of the groove 2 (i.e., the distance from the groove located at the end surface of the baffle to the bottom of the groove along the length direction of the baffle), the thickness d of the baffle 1, the angle between the center line of the groove 2 and the extension line of the vertical part 12 of the baffle The angle between the groove 2 and the groove along the thickness direction The formula is satisfied: The distance between the boundary point between the vertical part 12 and the bent part 11 of the baffle and the point where the bent part 11 of the baffle faces the center of the exhaust hole (referring to the exhaust hole covered by the valve plate) is L, the depth of the groove 2 (i.e. the distance from the groove on the end face of the baffle to the bottom of the groove along the length direction of the baffle) is L0, and the range of L0 is In specific applications, the noise level of the compressor unit can be reduced by at least 2dBA on average, and the performance can be improved by 1.2% on average, which helps to alleviate the impact of the exhaust valve plate on the baffle, reduce exhaust resistance, reduce air flow pulsation noise and mechanical noise, and ultimately improve the system sound quality.

[0021] In the present invention, the ratio of the cross-sectional area of ​​the opening on the side of the groove 2 (i.e., the side corresponding to both the thickness direction and the length direction of the baffle) to the cross-sectional area of ​​the side of the baffle 1 is in the range of 1 / 3 to 2 / 5, which ensures the rigidity of the baffle structure and can also enhance the ductility of the valve plate contact surface side.

[0022] In the present invention, the cross section of the opening of the side of the groove 2 (i.e., the side corresponding to both the thickness direction and the length direction of the baffle) is Y-shaped, U-shaped, rectangular or sawtooth-shaped, or any other shape, all within the protection scope of the present invention. An elastic member may also be added to the groove to make the baffle divided into two layers by the groove absorb stress better, further relieving the impact force of the exhaust valve sheet hitting the baffle. The elastic member may be a steel sheet, a spring or rubber.

[0023] The present invention also proposes a compressor. By using the above-mentioned compressor baffle, the exhaust pressure loss of the compressor can be reduced. When the exhaust is completed, the baffle stiffness is appropriately reduced and it has elastic force on the valve plate, so the valve plate will close quickly and seal in advance, which effectively alleviates the flow of shell gas into the cylinder, reduces compressor noise, improves compressor performance, and optimizes product quality.

[0024] The present invention also provides an air conditioner using the compressor.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A compressor baffle, It is characterized in that A groove (2) is provided on the end surface of the baffle (1) that bears the impact of the valve plate so that the baffle (1) is layered in the thickness direction to form a flexible structure; One end of the baffle (1) that bears the impact of the valve plate is bent corresponding to the movement track of the valve plate; The distance between the boundary point between the vertical part (12) and the bent part (11) of the baffle (1) and the point where the bent part of the baffle faces the center of the exhaust hole is L, the depth of the groove is L0, and the range of L0 is The ratio of the cross-sectional area of ​​the side opening of the groove (2) to the cross-sectional area of ​​the side of the baffle (1) is in the range of 1 / 3 to 2 / 5.

2. The compressor baffle according to claim 1, It is characterized in that The depth L0 of the groove (2), the thickness d of the baffle (1), the angle α between the midline bisecting the groove (2) and the extension line of the vertical part of the baffle (1), and the angle β of the groove notch along the thickness direction of the baffle satisfy the formula:

3. The compressor baffle according to claim 1, It is characterized in that The cross-section of the side opening of the groove (2) is Y-shaped, U-shaped, rectangular or sawtooth-shaped.

4. The compressor baffle according to claim 1, It is characterized in that An elastic member is arranged in the groove (2).

5. The compressor baffle according to claim 4, It is characterized in that The elastic member is a steel sheet, a spring or rubber.

6. A compressor, It is characterized in that Use of the compressor baffle according to any one of claims 1 to 5.

7. An air conditioner, It is characterized in that Use of the compressor as claimed in claim 6.

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