CN-122014570-A - Suction valve group, compressor and refrigeration equipment

CN122014570ACN 122014570 ACN122014570 ACN 122014570ACN-122014570-A

Abstract

The invention discloses an air suction valve group, a compressor and refrigeration equipment, and relates to the technical field of compressors. The air suction valve group comprises a valve body and a valve plate, wherein the valve body is connected with the valve plate, two tongues of the valve plate are connected into a notch of the body through a fixing section, and free sections of the tongues cover air suction holes of the valve body. Therefore, the free section opens the suction hole when the compressor sucks air, and the free section closes the suction hole when the compressor discharges air. Because the number of the tongue is two, and the number of the air suction holes is also two, the air suction quantity is larger than that of a single hole scheme, and the energy efficiency of the compressor can be improved. Because the minimum widths of the swing arm sections of the two tongues are different, the opening resistances of the two tongues are different, and the situation that the air suction holes are opened and closed sequentially exists. Therefore, in this embodiment, two reed with different minimum widths are respectively provided, so that the operation requirements of the compressor under high frequency and low frequency are considered, and the opening resistance of the reed can be reduced while the air suction amount is improved to a certain extent.

Inventors

Hong jiahua
ZHANG JIATING
ZHOU ZHANMIN
ZHANG HUI

Assignees

安徽美芝制冷设备有限公司

Dates

Publication Date: 20260512
Application Date: 20260408

Claims (12)

1. The valve group of breathing in, its characterized in that includes: the valve body is provided with two air suction holes which are arranged along a first direction; The valve plate is connected to the valve body, the valve plate comprises a body and two tongues, the body is provided with a notch, the two tongues are respectively arranged at the notch and are distributed along the first direction, the tongues comprise a fixed section, a swing arm section and a free section which are sequentially connected, one end of the fixed section is fixedly connected with the inner wall of the notch, and the free section is configured to swing relative to the body and cover the corresponding air suction hole; the minimum width of one reed at the swing arm section is H, and the minimum width of the other reed at the swing arm section is H, so that H > H is satisfied.
2. The valve block of claim 1, wherein the reed having a minimum width H of the swing arm segment is a first reed, at least a portion of an outer edge of the free segment of the first reed being configured as a first arc segment having a radius R; The reed with the minimum width h of the swing arm section is a second reed, at least part of the outer edge of the free section of the second reed is constructed as a second arc section, and the radius of the second arc section is r; meets the requirement that (H/R2)/(H/R2) is less than or equal to 0.7 and less than or equal to 2.3.
3. The valve block of claim 2, wherein the radius R of the first arc segment and the radius R of the second arc segment satisfy R≥r.
4. The suction valve set as set forth in claim 1, wherein a minimum width of one of the swing arm sections is H and a minimum width of the other swing arm section is H satisfies 1.4≤H/h≤2.4.
5. The valve manifold of claim 1, wherein the swing arm segment has a width that tapers and then tapers in a second direction perpendicular to the first direction.
6. The valve manifold of claim 1 or 5, wherein the width of the fixed segment increases gradually in a second direction perpendicular to the first direction.
7. The valve block of claim 1, wherein a side of the fixed section and the swing arm section facing the other reed is an inner edge, and a side of the fixed section and the swing arm section facing away from the other reed is an outer edge; The inner edge comprises a first edge section, a second edge section and a third edge section which are sequentially connected along the direction of the free section towards the fixed section, and the outer edge comprises a fourth edge section and a fifth edge section which are sequentially connected; The first edge sections are arranged in a mutually far direction in a extending mode, the second edge sections are arranged in a mutually near direction in a extending mode, the distance between the third edge sections is kept unchanged, the fourth edge sections are arranged in a mutually near direction in a extending mode, and the fifth edges are arranged in a mutually far direction in a extending mode.
8. The valve manifold of claim 7, wherein the swing arm segment has the first edge segment and the fourth edge segment, and the fixed segment has the second edge segment, the third edge segment, and the fifth edge segment.
9. The valve manifold of claim 7, wherein the first rim section, the second rim section, the fourth rim section, and the fifth rim section are each configured as an arcuate section, and the third rim section is configured as a straight edge.
10. The valve block of claim 1, wherein the valve body has a first vent hole, the body further includes a filling piece between the two tongues, the filling piece and the tongues are spaced apart and have a second vent hole, and the second vent hole is in communication with the first vent hole.
11. Compressor, characterized by comprising a suction valve set according to any one of claims 1 to 10.
12. A refrigeration apparatus comprising the compressor of claim 11.

Description

Suction valve group, compressor and refrigeration equipment Technical Field The invention relates to the technical field of compressors, in particular to an air suction valve group, a compressor and refrigeration equipment. Background The reciprocating compressor of refrigerator has air sucking valve set with tongue to open the air sucking hole for sucking refrigerant and to close the air sucking hole when the piston exhausts. When the compressor is operated at high frequencies of 72Hz and above, there is a greater concern about the amount of effective suction, which in turn is related to the rebound velocity of the reed. If the rebound speed of the reed is too slow, the refrigerant sucked into the cylinder is pushed back into the suction cavity by the piston at the initial stage of compression, namely the rebound amount is increased, and the effective suction amount is reduced. To increase the rebound velocity of the reed, the reed typically employs a higher mass head and wider arm design to increase stiffness and increase rebound velocity. But increasing the stiffness of the reed may result in an increase in the opening resistance of the reed. The efficiency of the compressor is more concerned when the compressor is operated at low frequencies of 27Hz and below, which is in turn related to the opening resistance of the reed. The reed with high rigidity needs larger pressure difference to be pushed away, so that the reed opening speed is slower in the early stage of air suction, the effective air suction time is shortened, the air suction amount is insufficient, and meanwhile, the power consumption of the compressor is increased, so that the reed in the related technology is difficult to balance the requirements of the compressor in different modes. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the air suction valve group which can increase the effective air suction amount and reduce the opening resistance of the tongue. The invention also provides a compressor with the air suction valve group and refrigeration equipment. The air suction valve group comprises a valve body, a valve body and a valve body, wherein the valve body is provided with two air suction holes which are arranged along a first direction; The valve plate is connected to the valve body, the valve plate comprises a body and two tongues, the body is provided with a notch, the two tongues are respectively arranged at the notch and are distributed along the first direction, the tongues comprise a fixed section, a swing arm section and a free section which are sequentially connected, one end of the fixed section is fixedly connected with the inner wall of the notch, and the free section is configured to swing relative to the body and cover the corresponding air suction hole; the minimum width of one reed at the swing arm section is H, and the minimum width of the other reed at the swing arm section is H, so that H > H is satisfied. The air suction valve group provided by the embodiment of the invention has at least the following beneficial effects: through setting up valve body and valve block connection, two reeds of valve block pass through the fixed section and connect in the breach of body, and the free section of reed covers the suction port at the valve body. Therefore, the free section opens the suction hole when the compressor sucks air, and the free section closes the suction hole when the compressor discharges air. Because the number of the tongue is two, and the number of the air suction holes is also two, the air suction quantity is larger than that of a single hole scheme, and the energy efficiency of the compressor can be improved. Because the minimum widths of the swing arm sections of the two tongues are different, the opening resistances of the two tongues are different, and the situation that the air suction holes are opened and closed sequentially exists. The spring back speed of the reed with the minimum width H is faster, the back flow can be reduced, the effective air suction quantity is improved, the energy efficiency of the compressor in high-frequency operation is improved, and the opening resistance is larger than that of the reed with the minimum width H. The reed with the minimum width H has small opening resistance, is beneficial to improving the efficiency of the compressor in low-frequency operation, and has slow rebound speed relative to the reed with the minimum width H, so that the effective air suction amount is reduced. Therefore, in this embodiment, two reed with different minimum widths are respectively provided, so that the operation requirements of the compressor under high frequency and low frequency are considered, and the opening resistance of the reed can be reduced while the air suction amount is improved to a certain extent. According to some embodiments of the invention, the reed of th