CN210799290U

CN210799290U - Valve group component of low-loss compressor and compressor

Info

Publication number: CN210799290U
Application number: CN201921394455.0U
Authority: CN
Inventors: 曹礼建
Original assignee: Huangshi Nimet Technology Development Co ltd
Current assignee: Anhui Huadan Machinery Manufacturing Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-06-19
Anticipated expiration: 2029-08-26

Abstract

The utility model discloses a valve unit spare of low-loss compressor, through reducing the thickness of valve plate to 0.3 ~ 0.5mm, and fix suction valve piece and discharge valve piece on the valve plate respectively, through increasing a reinforcing plate, a strength for reinforcing the valve plate, and simultaneously, the cooperation adopts the lift stopper of simplifying structural design, through setting up positioning hole on the reinforcing plate, can be effectual to the control of lift stopper, thereby when guaranteeing to reduce the thickness of valve plate, guarantee the location and the installation of lift stopper, ensure its installation leakproofness, thereby in order to reach the efficiency that improves the compressor.

Description

Valve group component of low-loss compressor and compressor

Technical Field

The utility model relates to a compressor spare part technical field, more specifically relates to a valve group part and compressor of low-loss compressor.

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 and exhaust valve sheets in the valve bank are opened and closed intermittently under the action of the piston to suck and discharge refrigerant continuously, so that refrigeration is realized. Among the various factors that affect the efficiency of the compressor, volumetric efficiency is a very important one. In 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 after the piston has reached top dead center, is very important. The smaller the clearance volume, the smaller the gas volume occupied by the re-expansion of the residual gas upon inspiration, and the higher the volumetric efficiency. In a compressor employing an integral suction valve plate structure, the gap between the reed portion of the suction valve plate and the support region forms part of the clearance volume. The gap is often dimensioned very small in order to reduce the clearance volume of this section as much as possible, which however leads to increased material costs and processing difficulties for the suction valve plate.

At present, the existing valve group adopts a structure of a concave valve plate or a thick steel plate, so that the processing manufacturability of the concave valve group is poor, and the leakage rate of the assembled valve group is higher; meanwhile, the adoption of a thick steel plate can increase the clearance volume and reduce the performance of the compressor.

In chinese patent application CN201020271475.1, a valve set for a refrigerator compressor is provided, which comprises a valve plate gasket, an intake valve plate, a steel valve plate, an exhaust valve plate, a cylinder cover gasket and a cylinder cover. The valve plate gasket, the air inlet valve plate, the steel piece valve plate, the exhaust valve plate, the cylinder cover gasket and the cylinder cover are sequentially stacked from bottom to top. The air inlet valve piece and the air outlet valve piece are both provided with movable valve pieces and are of integral structures. The steel valve plate of the refrigerator compressor valve bank is formed by pressing and grinding a thin steel plate, the processing technology is simple, the clearance volume is small, and the refrigerating capacity of the compressor is improved. The exhaust valve plate and the movable valve plate are of an integral structure, can be well attached to the steel valve plate, and have good assembly manufacturability and low valve set leakage rate. The valve group solves the problems that the existing valve group adopts a structure of a concave valve plate or a thick steel plate, the processing manufacturability is poor, the leakage rate is higher after the valve group is assembled, the clearance volume is increased, and the performance of a compressor is reduced.

Although, this patent has reduced the thickness of valve plate to a certain extent to reach the purpose that reduces the clearance volume, however, when the in-service use, because valve plate thickness reduces for its intensity weakens, leads to discharge valve piece or suction valve piece to drive the valve plate and produce the deformation in doing reciprocating motion process, thereby influences its result of use, and because the valve plate needs to prescribe a limit to the lift stopper, this just leads to the difficult undersize of valve plate thickness, and the reduction of valve plate thickness receives the limitation.

Therefore, in order to solve the above technical problems, a structure of the present invention is needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a simple, but the at utmost reduction valve plate thickness guarantees valve plate intensity and lift stopper installation's effect's low-loss compressor's valves part and compressor simultaneously in order to reduce the clearance capacity of processing technology to solve above-mentioned technical problem.

According to an aspect of the present invention, there is provided a valve assembly of a low loss compressor, comprising a cylinder cover, a gasket, a lift stopper, a reinforcing plate and a valve plate, wherein the valve plate is provided with a suction hole and a discharge hole, the valve plate is provided with a suction valve plate and a discharge valve plate, one end of the suction valve plate is fixed on the valve plate, and the suction valve plate covers the suction hole; the one end of discharge valve piece is fixed on the valve plate, just the discharge valve piece lid closes on the exhaust hole, the thickness of valve plate is 0.3 ~ 0.5mm, be equipped with on the reinforcing plate and inhale the through-hole and be used for holding the positioning hole of lift stopper, the valve plate is installed on the reinforcing plate, and make inhale the through-hole with the suction hole corresponds, the thickness of reinforcing plate is greater than valve plate thickness, the reinforcing plate passes through the gasket and installs on the jar lid, the lift stopper is installed in the positioning hole, just the other end of lift stopper is contradicted on the jar lid.

On the basis of the scheme, the valve plate is preferably provided with positioning holes, and the positioning holes are formed in the valve plate at the outer edges of the air suction holes and the air exhaust holes.

On the basis of the scheme, the exhaust valve plate preferably comprises a connecting end connected with the valve plate and a movable end corresponding to the exhaust hole in the valve plate, and the connecting end and the movable end are connected through an arc to form a structure with two wide ends and a narrow middle part.

On the basis of the scheme, the connecting end is rectangular, grooves corresponding to the positioning holes are formed in the two ends of the connecting end, and the exhaust valve plate is welded to the reinforcing plate through the positioning holes in a spot welding mode.

On the basis of the scheme, the suction valve plate preferably comprises a connecting end connected with the valve plate and a movable end corresponding to the suction hole in the valve plate, and the connecting end and the movable end are connected through an arc to form a structure with two wide ends and a narrow middle part.

On the basis of the scheme, the connecting end is rectangular, grooves corresponding to the positioning holes are formed in the two ends of the connecting end, and the air suction valve plate is spot-welded to the reinforcing plate through the positioning holes.

Preferably on the basis of the scheme, the lift stopper includes installation department and spacing portion, the installation department with spacing portion links to each other, just the bottom of installation department with spacing portion bottom is the level form, the top of spacing portion includes linkage segment, segmental arc and horizontal segment, the linkage segment with the top surface of installation department links to each other and is in same horizontal plane, the initiating terminal of segmental arc is less than the horizontal plane of linkage segment, the segmental arc with the linkage segment links to each other through linking up the section, the horizontal segment with the end of segmental arc links to each other.

On the basis of the scheme, preferably, the inner edge surface of the positioning through hole, which is close to the end surface of one side of the gasket, is also provided with a step surface.

Preferably, on the basis of the scheme, the positioning through hole is matched with the lift limiter in shape, and the step surface is attached to the horizontal section.

The utility model also provides a compressor, include as above a valve group part of low-loss compressor.

The utility model discloses a valve group part of low-loss compressor, through reducing the thickness of valve plate to 0.3 ~ 0.5mm, and fix suction valve piece and discharge valve piece on the valve plate respectively, through increasing a reinforcing plate, an intensity for reinforcing the valve plate, and simultaneously, the cooperation adopts the lift stopper of simplifying structural design, through setting up positioning hole on the reinforcing plate, can be effectual to the control of lift stopper, thereby when guaranteeing to reduce the thickness of valve plate, guarantee the location and the installation of lift stopper, ensure that it obtains littleer assembly error, thereby in order to reach the efficiency that improves the compressor.

Drawings

Fig. 1 is an exploded view of the valve block components of the low loss compressor of the present invention;

FIG. 2 is an exploded view of the valve plate of the present invention;

FIG. 3 is a perspective view of a lift stop of the present invention;

fig. 4 is a perspective view of the reinforcing plate of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Please refer to fig. 1, the utility model discloses a valve group component of low-loss compressor, including cylinder cap 600, gasket 700, lift stopper 500, reinforcing plate 400 and valve plate 30, wherein, be equipped with suction hole 31 and exhaust hole 32 on the valve plate 30, valve plate 30 facial make-up is equipped with suction valve piece 20 and discharge valve piece 10, the one end of suction valve piece 20 is fixed on valve plate 30, and make suction valve piece 20 lid close on suction hole 31, thereby make and can make suction valve piece 20 be reed-shaped when high-pressure gas acts on suction valve piece 20, produce elastic deformation, realize opening and closing of suction valve piece 20 relative suction hole 31.

The utility model discloses the one end of discharge valve piece 10 is fixed on valve plate 30, and discharge valve piece 10 lid closes on exhaust hole 32, and the theory of operation of discharge valve piece 10 is similar to suction valve piece 20, and its structure is not being repeated here.

The utility model discloses a thickness of valve plate 30 is 0.3 ~ 0.5mm the utility model discloses in, valve plate 30 and combination of suction valve block 20, and combination of valve plate 30 and discharge valve block 10 all adopt laser spot welding with fixed, and suction valve block 20, discharge valve block 10, reinforcing plate 400, valve plate 30 all adopt the valve plate steel to make and form.

Please refer to fig. 4, the reinforcing plate 400 of the present invention is provided with an air suction through hole 41 and a positioning through hole 42 for accommodating the lift stop 500, the valve plate 30 is installed on the reinforcing plate 400, and the air suction through hole 41 corresponds to the air suction hole 31, the thickness of the reinforcing plate 400 is greater than the thickness of the valve plate 30, the reinforcing plate 400 is installed on the cylinder head 600 through the gasket 700, the lift stop 500 is installed in the positioning through hole 42, and the other end of the lift stop 500 abuts against the cylinder head 600.

In the using process, a motor of a refrigerator compressor drives a crankshaft, the crankshaft drives a piston to compress a refrigerant in a piston hole of a machine seat body through a connecting rod, when air is sucked, an exhaust valve plate 10 is closed, an air inlet valve plate is opened, and the low-temperature refrigerant returned by a refrigeration system is sucked into an air cylinder; when exhausting, the air suction valve plate 20 is closed, the air discharge valve plate 10 is opened, the compressed high-temperature refrigerant is discharged out of the compressor, and then the refrigerant returns to the compressor after circulating through the refrigeration system, so that the compression cycle of the refrigerant is formed.

The utility model relates to a valve group part of low-loss compressor, thickness through with valve plate 30 reduces to 0.3-0.5mm, with the clearance capacity among the reduction compressor working process, and the cooperation is fixed suction valve piece 20 and discharge valve piece 10 on valve plate 30 through spot welding mode, with the machining error who reduces valve plate 30 from the technology, and simultaneously, add a reinforcing plate 400 between valve plate 30 and cylinder cap 600, utilize reinforcing plate 400 can improve valve plate 30 on the one hand, on the other hand combines lift stopper 500's structural optimization, the cooperation sets up a positioning hole 42 on reinforcing plate 400, thereby realize lift stopper 500's installation, in order to guarantee its installation leakproofness. Therefore, the sealing performance and the clearance capacity are both realized, the energy consumption is reduced, and the performance of the compressor is improved.

In order to facilitate the positioning of the suction valve plate 20 and the discharge valve plate 10 with the valve plate 30, the utility model discloses still be equipped with the locating hole 33 on the valve plate 30, the locating hole 33 sets up on the valve plate 30 of the outer fringe department of suction hole 31 and exhaust hole 32.

Referring to fig. 2, the exhaust valve plate 10 of the present invention includes a connecting end 11 connected to the valve plate 30 and a movable end 12 corresponding to the exhaust hole 32 on the valve plate 30, wherein the connecting end 11 and the movable end 12 are connected by an arc to form a structure with two wide ends and a narrow middle. Therefore, when the gas acts on the suction valve plate 20 or the exhaust valve plate 10, the free end of the suction valve plate 20 or the exhaust valve plate 10 can deform under the condition of small stress, and the free end and the valve plate 30 can open or close.

Referring to fig. 2, the connecting end 11 of the present invention is rectangular, and two ends of the connecting end 11 are provided with grooves 13 corresponding to the positioning holes 33. During installation, the exhaust valve plate 10 and the valve plate 30 can be quickly positioned and installed through the positioning holes 33 and the grooves 13.

As shown in fig. 2, the suction valve plate 20 of the present invention includes a connecting end 21 connected to the valve plate 30 and a movable end 22 corresponding to the suction hole 31 of the valve plate 30, wherein the connecting end 21 and the movable end 22 are connected by an arc to form a structure with two wide ends and a narrow middle. The utility model discloses a link 21 be the rectangle form, and the both ends of link 21 be equipped with the recess 23 that locating hole 33 corresponds. The structural design of the suction valve plate 20 is similar to the design principle of the discharge valve plate 10, and is not described in detail herein.

Please refer to fig. 3, the lift stop 500 of the present invention includes an installation portion 56 and a limiting portion 51, the installation portion 56 is connected to the limiting portion 51, and the bottom of the installation portion 56 is horizontal to the bottom of the limiting portion 51, the top of the limiting portion 51 includes a connection segment 52, an arc segment 53 and a horizontal segment 55, the connection segment 52 is connected to the top surface of the installation portion 56 and is located on the same horizontal plane, the start end of the arc segment 53 is lower than the horizontal plane of the connection segment 52, the arc segment 53 is connected to the connection segment 52 through a connection segment 54, and the horizontal segment 55 is connected to the end of the arc segment 53.

The utility model discloses it has the open cavity of one end to inject in the cylinder cap 600, is equipped with the sealed muscle along its axial extension on the terminal surface of cylinder cap 600 one end, and reinforcing plate 400 passes through the opening one end sealed of gasket 700 and cylinder cap 600 and links to each other, and sealed muscle ends to support on valve plate 30, and sealed muscle is close to the inside extension of inner fringe face on one side of suction hole 31 and forms a support rib, and the terminal surface of support rib is less than the terminal surface of cylinder cap 600.

During the installation, be horizontal form one end with the bottom of lift stopper 500 and end to cylinder cap 600 on, the other end that the bottom of lift stopper 500 is horizontal form ends the edge at the sealed muscle of cylinder cap 600, and lift stopper 500 is then embedded into locating hole 33 rather than the relative one side in horizontal plane one side that is the echelonment promptly to through valve plate 30, the connection effect of crossing cab apron, backing plate and cylinder cap 600, thereby in order to realize its fixed locking.

It is worth explaining that, the utility model discloses a positioning hole 42 is close to the interior border face of gasket 700 a side end face still is equipped with a step face, and positioning hole 42 and lift stopper 500's appearance adaptation, and the step face laminates with horizontal segment 55 mutually. In the installation process, the step surface can be abutted against the horizontal section 55 of the lift limiter 500, so that the lift limiter 500 can be quickly positioned and installed.

Other constructions and operations of the compressor according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims

1. A valve group component of a low-loss compressor is characterized by comprising a cylinder cover, a gasket, a lift limiter, a reinforcing plate and a valve plate, wherein the valve plate is provided with an air suction hole and an air exhaust hole, the valve plate is provided with an air suction valve plate and an air exhaust valve plate, one end of the air suction valve plate is fixed on the valve plate, and the air suction valve plate covers the air suction hole; the one end of discharge valve piece is fixed on the valve plate, just the discharge valve piece lid closes on the exhaust hole, the thickness of valve plate is 0.3 ~ 0.5mm, be equipped with on the reinforcing plate and inhale the through-hole and be used for holding the positioning hole of lift stopper, the valve plate is installed on the reinforcing plate, and make inhale the through-hole with the suction hole corresponds, the thickness of reinforcing plate is greater than valve plate thickness, the reinforcing plate passes through the gasket and installs on the jar lid, the lift stopper is installed in the positioning hole, just the other end of lift stopper is contradicted on the jar lid.

2. The valve block assembly for a low loss compressor of claim 1, wherein the valve plate is provided with positioning holes, and the positioning holes are provided on the valve plate at outer edges of the suction hole and the discharge hole.

3. The valve train assembly of a low loss compressor of claim 2, wherein the discharge valve plate includes a connection end connected to the valve plate and a movable end corresponding to the discharge hole of the valve plate, and the connection end and the movable end are connected by an arc shape to form a structure having two wide ends and a narrow middle.

4. The valve train assembly of a low loss compressor of claim 3, wherein the connection end has a rectangular shape and grooves are formed at both ends of the connection end to correspond to the positioning holes through which the discharge valve plate is spot-welded to the reinforcing plate.

5. The valve assembly of low loss compressor of claim 2, wherein the suction valve plate comprises a connection end connected to the valve plate and a movable end corresponding to the suction hole of the valve plate, and the connection end and the movable end are connected by an arc shape to form a structure with two wide ends and a narrow middle.

6. The valve train assembly of a low loss compressor of claim 5, wherein the connection end has a rectangular shape and grooves are formed at both ends of the connection end to correspond to the positioning holes through which the suction valve plate is spot-welded to the reinforcing plate.

7. The valve group component of the low loss compressor of claim 1, wherein the lift stopper comprises an installation part and a limit part, the installation part is connected with the limit part, the bottom of the installation part is horizontal with the bottom of the limit part, the top of the limit part comprises a connection section, an arc section and a horizontal section, the connection section is connected with the top surface of the installation part and is located on the same horizontal plane, the starting end of the arc section is lower than the horizontal plane of the connection section, the arc section is connected with the connection section through a connection section, and the horizontal section is connected with the tail end of the arc section.

8. The valve train assembly of a low loss compressor of claim 7, wherein the inner edge surface of the positioning through hole adjacent to the gasket is further provided with a step surface.

9. The valve assembly of low loss compressor of claim 8, wherein the positioning through hole is adapted to the profile of the lift stop, and the step surface is fitted to the horizontal section.

10. A compressor, characterized by comprising a valve assembly of a low loss compressor according to any of claims 1 to 9.