CN215213857U - Valve assembly and compressor with same - Google Patents

Abstract

The application belongs to the technical field of compressors, and particularly relates to a valve assembly and a compressor with the same. The valve assembly comprises a valve plate and an air suction valve plate, the valve plate is provided with an air suction side, a groove is formed in the air suction side, an air suction hole is formed in the bottom of the groove, the shape and the size of the air suction valve plate are matched with the groove, and the air suction valve plate is movably installed in the installation groove to open or close the air suction hole. The size of the air suction valve plate meets the requirement of covering the air suction hole, and is equivalent to a reed structure only provided with the integral air suction valve plate, so that the material consumption of the air suction valve plate is reduced, and the material cost is reduced; the air suction valve plate is manufactured independently, the burr on the edge of the air suction valve plate can be effectively removed without being influenced by the size of the groove, the interval gap between the side wall of the groove and the edge of the air suction valve plate can be reduced as much as possible through size design, the clearance volume of a compressor using the valve assembly is reduced, the compression volume of the compressor is increased, and therefore the refrigeration efficiency of the compressor is improved.

Description

Valve assembly and compressor with same

Technical Field

The application belongs to the technical field of compressors, and particularly relates to a valve assembly and a compressor with the same.

Background

The reciprocating piston refrigeration compressor drives the crank connecting rod mechanism to push the piston to reciprocate through the operation of the motor in work, and the suction valve plate and the exhaust valve plate in the valve component connected to one side of the cylinder of the compressor intermittently open or close the suction port and the exhaust port on the valve plate under the action of gas impact, so that a refrigerant is continuously sucked or discharged, and refrigeration is realized.

In the related art, since the suction valve plate 100 needs to be assembled with the end surface of the cylinder in a sealing manner, an integral suction valve plate 100 structure having the same size as the valve plate is generally adopted, as shown in fig. 1, by processing a cantilever beam (generally referred to as a tongue 101) structure on the integral suction valve plate 100, the tongue 101 correspondingly covers the suction port on the valve plate 10, and part of the tongue 101 can move under the action of air pressure to open or close the suction port.

For the stability and reliability of the compressor, the reliability of the operation of the suction valve plate 100 is one of the key factors, and in terms of materials, a special valve plate steel strip with high quality and high price is generally adopted, however, in the actual operation process, the structure of the suction valve plate 100 participating in the opening or closing operation is only the reed 101 part, and the proportion of the area of the part occupying the whole valve plate area is very small, so that the other structure parts occupying a large part of area also use the same material, the waste of the special material is caused, and the cost of the suction valve plate 100 is difficult to reduce. In addition, from the aspect of process, when the integral suction valve plate 100 is processed, the groove 102 needs to be punched on the valve plate so as to process the tongue 101, and the edge of the tongue 101 is rolled and polished to remove edge burrs and the like, so that the rolling and polishing processing of the tongue 101 is affected by the size of the groove 102, the phenomenon that the edge of the tongue 101 is not rolled and polished in place is caused when the groove 102 is too small, the clearance volume of the compressor is increased when the groove 102 is increased, the volumetric efficiency of the compressor is reduced, and the compression and refrigeration effects are affected.

Content of application

The main aim at of this application embodiment provides a valve module and have its compressor to solve the valve module among the prior art and use integral suction valve block because of reed area ratio is little and cause the waste of high-quality material, valve block with high costs, the processing degree of difficulty is big, and the processing does not in place can lead to the technical problem that compressor volumetric efficiency reduces.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: there is provided a valve assembly comprising:

the valve plate is provided with a gas suction side, a groove is formed in the gas suction side, and a gas suction hole penetrating through the valve plate is formed in the bottom of the groove;

the shape and the size of the air suction valve plate are matched with those of the groove, the air suction valve plate is movably arranged in the mounting groove, and the air suction valve plate moves in the groove to open or close the air suction hole.

In an alternative embodiment, when the suction valve plate closes the suction hole, the surface of the suction valve plate facing away from the groove bottom is flush with the surface of the suction side.

In an alternative embodiment, when the suction valve plate closes the suction hole, the height of the surface of the suction valve plate facing away from the groove bottom is lower than the height of the surface of the suction side in the axial direction of the suction hole.

In an alternative embodiment, the width of the suction valve plate is substantially equal to the width of the groove, and the length of the suction valve plate is substantially equal to the length of the groove along the radial direction of the suction hole.

In an alternative embodiment, the suction valve plate has a connecting end and a movable end which are oppositely arranged, the suction hole is arranged at one end of the bottom of the groove, the other end of the bottom of the groove is provided with a connecting bulge, the connecting end is connected with the connecting bulge, and the movable end can move relative to the suction hole to open or close the suction hole.

In an alternative embodiment, the edge of the opening of the suction hole facing the suction side is convexly provided with an annular flange along the axial direction of the suction hole, and when the suction valve plate closes the suction hole, the surface of the movable end facing away from the suction side abuts against the end surface of the annular flange.

In an alternative embodiment, the height of the flange portion is 0.01mm to 0.03mm higher than the height of the coupling projection in the axial direction of the suction hole.

In an alternative embodiment, the connecting end is welded or riveted to the connecting projection.

In an alternative embodiment, the suction valve plate is of a sheet structure, the connecting end is in arc transition connection with the movable end, and the width of the transition part is smaller than the width of the connecting end and the width of the movable end.

In an alternative embodiment, the valve plate is a steel plate or a powder-metal plate.

In an alternative embodiment, the valve assembly further comprises an exhaust valve plate, the valve plate further comprises an exhaust side opposite to the suction side, an exhaust hole penetrating through the valve plate is formed in the position, avoiding the groove, of the valve plate, and the exhaust valve plate is movably arranged on the side surface of the exhaust side to open or close the exhaust hole.

One or more technical solutions in the valve assembly provided by the embodiment of the present application have at least one of the following technical effects: compared with the prior art, the valve component of this application sets up the recess through the side of breathing in at the valve plate, sets up the bottom in the recess with the suction hole to with the shape and the size processing of suction valve block become with this recess looks adaptation, during the equipment valve component, install the suction valve block in the recess of valve plate, like this, the size of suction valve block only need satisfy the requirement of connecting and cover the suction hole can. The structure is equivalent to that of a tongue-shaped part only needing to be provided with the integral air suction valve plate, so that the material consumption of the air suction valve plate is reduced, and the material cost is reduced; in addition, the air suction valve plate is independently processed and manufactured, and is installed in the groove of the valve plate at the later stage, the processing of burrs at the edge of the air suction valve plate, such as rolling and polishing processing and the like, is not influenced by the size of the groove, so that the burrs at the edge of the air suction valve plate can be effectively removed, and on the other hand, the edge of the air suction valve plate can be close to the side wall of the groove as far as possible through size design, namely, the interval gap between the side wall of the groove and the edge of the air suction valve plate is reduced, thereby reducing the volume of a compressor using the valve assembly, increasing the compression volume of the compressor, and improving the compression and refrigeration efficiency of the compressor.

Another object of the present application is to provide a compressor including the above valve assembly.

The beneficial effect of the compressor that this application embodiment provided lies in: compared with the prior art, the compressor of this application is through using foretell valve module for the clearance volume of compressor reduces, the increase of compression volume, thereby makes the compression and the refrigeration effect of compressor promote, and the compressor wholeness can promote.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is an exploded schematic view of a valve assembly of the related art;

FIG. 2 is a schematic structural view of a valve assembly provided by an embodiment of the present application;

FIG. 3 is an exploded schematic view of the valve assembly shown in FIG. 2;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2;

fig. 5 is a schematic view of a valve plate of the valve assembly shown in fig. 2.

In the figures, the various figures are mainly marked:

10. a valve plate; 11. a suction side; 12. a groove; 13. a suction hole; 131. an annular flange; 14. an exhaust hole; 15. a connecting projection; 151. welding spots; 16. connecting holes; 17. an exhaust side; 20. an air suction valve plate; 21. a connecting end; 22. a movable end; 30. an exhaust valve plate; 100. an integral suction valve plate; 101. a tongue; 102. and (6) punching a groove.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application more clearly understood, the present application is further described in detail below with reference to fig. 1 to 5 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Reference throughout this specification to "one embodiment," "some embodiments," or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. The appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like in various places in the specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

The present application provides a valve assembly adapted for installation at an opening of a compression chamber of a compressor for discharge of gas within the compression chamber and for entry of gas outside the compression chamber, wherein the compressor may be a reciprocating piston refrigeration compressor or the like.

Fig. 2 to 4 show a schematic structural diagram of a valve assembly provided in an embodiment of the present application, fig. 3 provides an exploded schematic diagram of the valve assembly corresponding to fig. 2 for the present embodiment, fig. 4 is a sectional schematic diagram along a-a line in fig. 2, and fig. 5 is a schematic structural diagram of a valve plate 10 of the valve assembly corresponding to fig. 2 for the present embodiment. Hereinafter, the valve assembly provided in the present application will be described in detail with reference to fig. 2 to 4.

As shown in fig. 2 and 3, the present embodiment provides a valve assembly including a valve plate 10 and a suction valve plate 20. The valve plate 10 is provided with a suction side 11, the suction side 11 is provided with a groove 12, a suction hole 13 is formed in the bottom of the groove 12, and the suction hole 13 penetrates through the suction side 11 of the valve plate 10 and the other side opposite to the suction side 11. In the specific embodiment, the valve plate 10 is used for being connected with an opening of a compression cavity of a compressor, a suction side 11 of the valve plate 10 is arranged towards the inside of the compression cavity, and a suction hole 13 is communicated with the compression cavity and used for allowing a refrigerant outside the compression cavity to enter. The shape and the size of the suction valve plate 20 are matched with the groove 12, namely the shape of the suction valve plate 20 is the same as the shape of the groove body of the groove 12, and the size of the suction valve plate 20 meets the size requirement of being placed in the groove 12, so that the suction valve plate 20 can be embedded into the groove 12 arranged on the valve plate 10. Further, the suction valve plate 20 is movably installed in the installation groove and can move in the groove 12 to open or close the suction hole 13. In a specific embodiment, when the compression cavity sucks air, the air pressure in the compression cavity is lower than the external air pressure, the refrigerant rushes the air suction valve plate 20 through the air suction hole 13 to enter the compression cavity, at this time, the air suction hole 13 is opened, otherwise, when the compression cavity exhausts air, the air pressure in the compression cavity is higher than the external air pressure, the air suction valve plate 20 seals the air suction hole 13 under the action of the pressure in the compression cavity, and the air suction hole 13 is closed.

The valve module that this application embodiment provided sets up recess 12 through the side 11 of breathing in at valve plate 10, sets up the bottom at recess 12 with suction hole 13 to with the shape and the size processing of suction valve block 20 become with this recess 12 looks adaptation, during the valve module of this embodiment of equipment, install suction valve block 20 in recess 12 of valve plate 10, like this, suction valve block 20's size only need satisfy the requirement of connecting and covering suction hole 13 can. The material consumption of the air suction valve plate 20 is reduced and the material cost is reduced, which is equivalent to the part of the structure (shown in figure 1) of the tongue-shaped spring 101 only needing to be provided with the integral air suction valve plate 100; in addition, the air suction valve plate 20 is separately processed and manufactured, and is installed in the groove 12 of the valve plate 10 at a later stage, the processing of burrs at the edge of the air suction valve plate 20, such as tumbling processing and the like, is not affected by the size of the groove 12, so that on one hand, the burrs at the edge of the air suction valve plate 20 can be effectively removed, on the other hand, the edge of the air suction valve plate 20 can be close to the side wall of the groove 12 as much as possible through size design, namely, the interval gap between the side wall of the groove 12 and the edge of the air suction valve plate 20 is reduced, thereby reducing the clearance volume of a compressor using the valve assembly, increasing the compression volume of the compressor, and improving the compression and refrigeration efficiency of the compressor.

It should be noted that, for the reciprocating piston refrigeration compressor, among the factors affecting the compression efficiency thereof, the volumetric efficiency (the ratio of the volume of the mixture actually sucked by the cylinder to the volume of the cylinder in the intake stroke) is one of the key factors. Among the factors that determine the volumetric efficiency of the compressor, the clearance volume, i.e., the residual volume formed between the end of the piston and the valve plate 10 after the piston reaches the top dead center, is very important, and the smaller the clearance volume, the smaller the gas volume occupied by the residual gas re-expansion during suction, and the higher the volumetric efficiency of the compressor. Whereas in the valve assembly the gap between the suction valve plate 20 and the support area is a part of the clearance volume.

For example, in a compressor using the structure of the integrated suction valve sheet 100 shown in fig. 1, the width of the groove 102, which is a gap between the reed 101 portion and the peripheral side support region of the integrated suction valve sheet 100, constitutes a part of the clearance volume. Thus, for the structure of the integral type suction valve plate 100, in order to reduce the clearance volume as much as possible, the width of the punching groove 102 on the integral type suction valve plate 100 is often designed to be smaller as much as possible, however, reducing the width of the punching groove 102 not only increases the processing difficulty of the punching groove 102, but also increases the processing difficulty of removing burrs at the edge of the tongue 101, so that the burrs at the edge of the tongue 101 are not rolled and thrown in place, and the burrs cannot be effectively removed.

As shown in fig. 2 and 3, the clearance between the edge of the suction valve plate 20 and the sidewall of the groove 12 forms a part of the clearance volume, and since the processing of the suction valve plate 20 is not affected by the size of the groove 12, and the burr of the edge of the valve plate is processed before the suction valve plate 20 is mounted, the width of the suction valve plate 20 along the radial direction of the suction hole 13 can be set to be substantially equal to the width of the groove 12, and the length of the suction valve plate 20 along the radial direction of the suction hole 13 can be set to be substantially equal to the length of the groove 12, that is, the planar size of the suction valve plate 20 is substantially equal to the planar size of the groove 12, so that the edge of the suction valve plate 20 is as close to the sidewall of the groove 12 as possible, and the effective reduction of the clearance between the sidewall of the groove 12 and the edge of the suction valve plate 20 can be realized, the clearance volume of the compressor using the valve assembly of the embodiment is reduced, the compression volume of the compressor is increased, and the compression and refrigeration efficiency of the compressor is effectively improved.

Based on this, in one embodiment, as shown in fig. 2 and 3, along the radial direction of the suction hole 13, the width of the suction valve sheet 20 is substantially equal to the width of the groove 12, and the length of the suction valve sheet 20 is substantially equal to the length of the groove 12, so as to reduce the interval gap between the side wall of the groove 12 and the edge of the suction valve sheet 20 as much as possible, reduce the clearance volume of the compressor using the valve assembly of the present embodiment, increase the compression volume of the compressor, and effectively improve the compression and refrigeration efficiency of the compressor. In this embodiment, "the width of the suction valve plate 20 is substantially equal to the width of the groove 12, and the length of the suction valve plate 20 is substantially equal to the length of the groove 12" means: the air suction valve plate 20 can be just embedded in the groove 12, a small gap is formed between the edge of the air suction valve plate 20 and the side wall of the groove 12, and the gap only needs to ensure that the edge of the air suction valve plate 20 cannot generate serious friction interference with the side wall of the groove 12 when the air suction valve plate 20 is opened, so that the air suction valve plate 20 cannot be normally opened, and the air suction hole 13 cannot be normally opened.

In an embodiment, please refer to fig. 2 and fig. 3, the valve assembly further includes an exhaust valve plate 30, the valve plate 10 further has an exhaust side 17 opposite to the suction side 11, the intake hole 13 penetrates through the suction side 11 and the exhaust side 17, the position of the valve plate 10 that is separated from the recess 12 is provided with an exhaust hole 14 penetrating through the exhaust side 17 and the suction side 11, and the exhaust valve plate 30 is movably mounted on a surface of the exhaust side 17 to open or close the exhaust hole 14. In a specific embodiment, when the compression chamber exhausts air, the air pressure in the compression chamber is higher than the external air pressure, the refrigerant is discharged out of the compression chamber by opening the discharge valve sheet 30 through the discharge hole 14, the discharge hole 14 is opened, on the contrary, when the air pressure in the compression chamber is lower than the external air pressure, the discharge valve sheet 30 is tightly attached to the surface of the discharge side 17 of the valve plate 10 under the action of the external pressure, and the discharge hole 14 is closed. Thus, the suction valve plate 20 and the discharge valve plate 30 move relative to the valve plate 10, so that the suction holes 13 and the discharge holes 14 can be alternately opened or closed, and the air intake and the air discharge of the compression cavity can be realized.

In some embodiments, the discharge valve plate 30 can be welded directly on the surface of the discharge side 17 of the valve plate 10, since in practical use, the surface of the discharge side 17 of the valve plate 10 is generally connected to the discharge muffler of a compressor, and the sound-deadening chamber of the discharge muffler provides a receiving space for the discharge valve plate 10 to accommodate the discharge valve plate 10, so that the discharge valve plate 10 can be welded directly on the surface of the discharge side 17 of the valve plate 10.

Of course, in other embodiments, a groove 12 adapted to the discharge valve sheet 30 may be disposed on the discharge side 17 of the valve plate 10, and the discharge valve sheet 30 is also mounted in the groove 12, so that the structural consistency of the valve assembly is higher, and when the discharge hole 14 is closed, the sealing effect of the discharge valve sheet 30 on the discharge hole 14 is better.

In one embodiment, when the suction valve plate 20 closes the suction hole 13, the surface of the suction valve plate 20 facing away from the bottom of the groove 12 is flush with the surface of the suction side 11, as shown in fig. 4; alternatively, when the suction valve plate 20 closes the suction hole 13, the height of the surface of the suction valve plate 20 facing away from the bottom of the groove 12 in the axial direction of the suction hole 13 is lower than the height of the surface of the suction side 11 (not shown).

In the practical use process, a valve plate gasket is generally required to be arranged on the surface of the suction side 11 of the valve plate 10, and the valve plate gasket is generally attached to the surface of the suction side 11 of the valve plate 10, so that the suction valve plate 20 is arranged in the groove 12, the surface of the suction valve plate 20 is flush with the surface of the suction side 11 of the valve plate 10, or the surface of the suction valve plate 20 is lower than the surface of the suction side 11 of the valve plate 10, that is, the suction valve plate 20 is accommodated in the groove 12, and thus, the interference between the arrangement of the suction valve plate 20 and the installation of the valve plate gasket can be avoided, and the installation and connection of the valve plate 10 are affected.

In one embodiment, as shown in fig. 3 and 4, the suction valve plate 20 has a connection end 21 and a movable end 22 which are oppositely disposed, the suction hole 13 is disposed at one end of the bottom of the groove 12, the other end of the bottom of the groove 12 opposite to the suction hole 13 is provided with a connection protrusion 15, the connection end 21 is connected to the connection protrusion 15, and the movable end 22 is disposed opposite to the suction hole 13 and serves as a free end of the suction valve plate 20, so that the movable end 22 is bent with respect to the connection end 21 to move with respect to the suction hole 13 to open or close the suction hole 13. Specifically, the suction valve plate 20 adopts 7C27M_O2 (valve block steel) or the material preparation of the better Hiflex of material, have better amount of deflection, can the atress be crooked to in time the reconversion after the external force is removed, so, the impact of the atmospheric pressure outside the activity end 22 compression chamber of air suction valve block 20 just can open suction opening 13 when the relative link end 21 of the impact is crooked, and when the compression chamber stops breathing in, resume to closing suction opening 13.

In some embodiments, as shown in fig. 3 and 5, welding spots 151 are provided on both sides of the coupling protrusion 15 in the width direction of the groove 12, and the suction valve sheet 20 is welded to the coupling protrusion 15 by the welding spots 151, and in particular, laser welding or the like may be used.

In other embodiments, the connecting end 21 of the suction valve plate 20 can also be riveted with the connecting protrusion 15, so that the connection firmness is ensured, and the connection of the connecting end 21 is not affected when the movable end 22 of the suction valve plate 20 is flushed by air pressure.

In one embodiment, the edge of the orifice of the suction hole 13 of the valve plate 10 facing the suction side 11 is provided with an annular flange 131, the annular flange 131 protrudes in the axial direction of the suction hole 13, which corresponds to increasing the height of the orifice of the inlet to a level exceeding the bottom of the groove 12, and when the suction hole 13 is closed by the suction valve plate 20, the surface of the movable end 22 facing away from the suction side 11 abuts against the end surface of the annular flange 131. Compare the drill way that directly sets up suction hole 13 and groove 12 tank bottom and level, increase the drill way and handle, can increase the tight power that supports when suction valve plate 20 laminates in the drill way of suction hole 13, make the better sealed suction hole 13 of movable end 22 of suction valve plate 20.

Specifically, in the present embodiment, as shown in fig. 4 and 5, the height of the flange portion of the suction hole 13 is higher than the height of the coupling projection 15 by 0.01mm to 0.03mm in the axial direction of the suction hole 13, as shown by L in fig. 4, so that when the suction hole 13 is closed, a certain upward gradient is exhibited from the movable end 22 to the coupling end 21, and the movable end 22 is closely adhered to seal the suction hole 13 by the elastic force of the suction valve sheet 20 itself. In some specific embodiments, the flange portion may be higher than the connecting protrusion 150.01mm, 0.015mm, 0.018mm, 0.020mm, 0.025mm, 0.028mm, or 0.030mm, and the like, which is not limited herein, and the design is selected according to the thickness of the valve plate 10 and the thickness of the suction valve plate 20, so as to ensure that the suction valve plate 20 does not protrude from the groove 12 when the suction hole 13 is closed.

In an embodiment, as shown in fig. 3 and 5, the suction valve plate 20 is a sheet structure, the connecting end 21 of the suction valve plate 20 is in arc transition connection with the movable end 22, and the width of the transition part is smaller than the width of the connecting end 21 and the width of the movable end 22, so that the whole suction valve plate 20 is a sheet structure with a narrow middle and wide ends, and correspondingly, the groove 12 is a structure with a narrow middle and wide ends, which is adapted to the suction valve plate 20. In this way, when the suction valve plate 20 is acted by the external air, the free end 22 of the suction valve plate 20 can be bent and deformed relative to the connecting end 21 under a small force, so as to open or close the opening of the suction hole 13, i.e. open or close the suction hole 13.

In one embodiment, the valve plate 10 is a steel plate or a powder metal plate, and it is desirable to select the valve plate according to the compressive strength and the connection strength of the valve plate 10. When the valve plate 10 is a steel plate, the suction hole 13, the groove 12, the exhaust hole 14 and the like can be formed in the valve plate 10 in a stamping manner; when the valve plate 10 is made of powder metal, the suction hole 13, the recess 12, the exhaust hole 14, and the like may be integrally formed by using a dedicated die when pressing the powder metal. And no matter the valve plate 10 is a steel plate or a powder metallurgy plate, the suction valve plate 20 and the exhaust valve plate 30 can be welded and connected to the valve plate 10 in a laser welding mode.

In an embodiment, as shown in fig. 5, opposite sides of the valve plate 10 are further provided with a plurality of screw holes, and when the valve assembly of the present embodiment is assembled into a compressor, the valve plate 10 can be fixed to the opening surface of the cylinder by screws or bolts.

According to the valve assembly of each embodiment, the material consumption of the air suction valve plate 20 is reduced, the material consumption cost is reduced, and the manufacturing cost of the valve assembly is reduced; the burrs of the air suction valve plate 20 can be effectively removed in a rolling and polishing mode, and the sealing effect when the air suction valve plate is used for closing the air suction hole 13 cannot be influenced due to the existence of the burrs; in addition, the plane size of the groove 12 is designed to be approximately the same as the plane size of the suction valve plate 20, so that the spacing gap between the side wall of the groove 12 and the edge of the suction valve plate 20 can be reduced, the clearance volume of the compressor using the valve assembly of the above embodiments is reduced, the compression volume of the compressor is increased, and the compression and refrigeration efficiency of the compressor is effectively improved.

Another embodiment of the present application also provides a compressor (not shown) including a cylinder and the above-described valve assembly. According to the compressor of the embodiment, by using the valve assembly, the clearance volume of the compressor is reduced, and the compression volume of the compressor is increased, so that the compression and refrigeration effects of the compressor are improved, and the overall performance of the compressor is improved.

Specifically, in the present embodiment, the valve plate 10 of the valve assembly is installed at an opening of a compression chamber of the compressor (such as an orifice of a cylinder hole of a cylinder, etc.), and the suction hole 13 and the discharge hole 14 of the valve plate 10 communicate with the compression chamber. The suction side 11 of the valve plate 10 is located towards the compression cavity, the exhaust side 17 deviates from the compression cavity, when sucking air, the air pressure in the compression cavity is lower than the external air pressure, the refrigerant rushes the suction valve plate 20 through the suction hole 13 and enters the compression cavity, at the moment, the exhaust valve plate 30 clings to the surface of the exhaust side 17 under the action of pressure, and the exhaust hole 14 is closed; on the contrary, when exhausting, the air pressure in the compression cavity is higher than the external air pressure, the compressed refrigerant in the compression cavity is exhausted from the compression cavity after the exhaust valve plate 30 is flushed through the exhaust hole 14, at this time, the air suction valve plate 20 seals the air suction hole 13 under the action of the pressure in the compression cavity, and the air suction hole 13 is closed.

Of course, the compressor of the present embodiment also has other technical effects of the valve assembly provided in the above embodiments, and details are not described herein.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A valve assembly, comprising:

the valve plate is provided with a gas suction side, the gas suction side is provided with a groove, and the bottom of the groove is provided with a gas suction hole penetrating through the valve plate;

the shape and the size of the air suction valve plate are matched with those of the groove, the air suction valve plate is movably arranged in the mounting groove, and the air suction valve plate moves in the groove to open or close the air suction hole.

2. The valve assembly of claim 1, wherein a surface of the suction flap facing away from the groove floor is flush with a surface of the suction side when the suction flap closes the suction hole.

3. The valve assembly of claim 1, wherein a surface of the suction valve plate facing away from the groove bottom is lower than a surface of the suction side in an axial direction of the suction hole when the suction valve plate closes the suction hole.

4. The valve assembly of claim 1, wherein a width of the suction valve sheet is substantially equal to a width of the groove and a length of the suction valve sheet is substantially equal to a length of the groove in a radial direction of the suction hole.

5. The valve assembly of claim 1, wherein the suction valve plate has a connecting end and a moving end, the suction hole is disposed at one end of the bottom of the groove, the other end of the bottom of the groove is provided with a connecting protrusion, the connecting end is connected to the connecting protrusion, and the moving end can move relative to the suction hole to open or close the suction hole.

6. The valve assembly according to claim 5, wherein an annular flange is protruded along an axial direction of the air suction hole at an edge of the opening of the air suction hole facing the air suction side, and when the air suction valve sheet closes the air suction hole, a surface of the movable end facing away from the air suction side abuts against an end surface of the annular flange.

7. The valve assembly according to claim 6, wherein the height of the flange portion is 0.01 to 0.03mm higher than the height of the coupling projection in the axial direction of the suction hole.

8. The valve assembly of claim 5, wherein the connecting end is welded or riveted to the connecting projection.

9. The valve assembly according to any one of claims 1 to 8, further comprising an exhaust valve plate, wherein the valve plate further comprises an exhaust side opposite to the suction side, an exhaust hole penetrating through the valve plate is formed at a position where the valve plate is avoided from the groove, and the exhaust valve plate is movably mounted on the exhaust side surface to open or close the exhaust hole.

10. A compressor comprising the valve assembly of any one of claims 1 to 9.

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