CN215292819U

CN215292819U - Piston compressor with embedded valve plate

Info

Publication number: CN215292819U
Application number: CN202121379721.XU
Authority: CN
Inventors: 杨兴标; 宋国华; 孙宇清; 陈宁; 罗云; 史峰
Original assignee: Zhejiang Bingfeng Compressor Co ltd
Current assignee: Zhejiang Bingfeng Compressor Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-12-24
Anticipated expiration: 2031-06-21

Abstract

The utility model discloses an embedded piston compressor of valve plate, including organism, piston, jar mouth pad, valve plate subassembly, jar lid pad and the cylinder cap that sets gradually, the piston chamber has been seted up on the organism, the piston slides and sets up in the piston intracavity, jar mouth pad is located between organism and the cylinder cap, valve plate subassembly and jar lid pad set up in the cylinder cap. The valve plate assembly comprises a valve plate, an air suction valve plate and an air discharge valve plate, wherein an air suction groove and an air discharge groove are formed in the valve plate and are respectively located on two sides of the valve plate, an air suction hole is formed in the air suction groove, an air discharge hole is formed in the air discharge groove, the air suction valve plate is arranged in the air suction groove, and the air discharge valve plate is arranged in the air discharge groove. The air suction valve plate and the air exhaust valve plate are embedded into the air suction groove and the air exhaust groove, and the air suction valve plate is embedded into the valve plate, so that the clearance of the air cylinder can be effectively reduced, and the volumetric efficiency of the air cylinder and the energy efficiency of a compressor are improved.

Description

Piston compressor with embedded valve plate

Technical Field

The utility model relates to a compressor technical field especially relates to an embedded piston compressor of valve plate.

Background

The compressor is a very important component of a refrigeration system of a refrigerator, and can even be said to be the heart of the refrigeration system of the refrigerator. For the reciprocating piston type compressor, the problem of improving the refrigerating capacity per unit volume is always solved by the industry, and particularly for improving the energy efficiency of the compressor, the volumetric efficiency of the compressor can be improved by reducing the clearance of the cylinder. The clearance of the low-pressure surface of the valve plate belongs to the component of the clearance of the cylinder. Due to the influence of the stamping process of the integral valve plate and the valve plate, at least 0.4mm of clearance and exhaust hole volume are formed between the periphery of the valve plate and the valve tongue, the clearance is reduced, the clearance of the valve block can be reduced, the refrigerating capacity of the compressor is improved, and the energy efficiency of the compressor is improved, so that the problem to be solved urgently is to reduce the clearance in the compressor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an embedded piston compressor of valve plate to the not enough of above-mentioned prior art.

In order to solve the above problems, the utility model adopts the following technical proposal:

the utility model provides an embedded piston compressor of valve plate, includes organism, piston, jar mouth pad, valve plate subassembly, jar lid pad and the cylinder cap that sets gradually, the piston chamber has been seted up on the organism, the piston slides and sets up in the piston intracavity, jar mouth pad is located between organism and the cylinder cap, valve plate subassembly and jar lid pad set up in the cylinder cap.

Furthermore, a high-pressure cavity is arranged on the machine body, a first vent hole matched with the high-pressure cavity is formed in the cylinder opening cushion, an exhaust cavity is formed in the cylinder cover, and the high-pressure cavity is communicated with the exhaust cavity.

Further, the valve plate assembly comprises a valve plate, an air suction valve plate and an air discharge valve plate, an air suction groove and an air discharge groove are formed in the valve plate and are respectively located on two sides of the valve plate, an air suction hole is formed in the air suction groove, an air discharge hole is formed in the air discharge groove, the air suction valve plate is arranged in the air suction groove, and the air discharge valve plate is arranged in the air discharge groove.

Furthermore, be equipped with first constant head tank on the valve plate, be equipped with the second constant head tank with first constant head tank looks adaptation on the cylinder head pad, be equipped with the locating piece on the cylinder head, the locating piece card is located in first constant head tank and the second constant head tank.

Furthermore, one side of the valve plate close to the cylinder cover is provided with three first positioning bulges, one side of the valve plate close to the engine body is provided with three second positioning bulges, the first positioning bulges and the second positioning bulges are arranged in an isosceles triangle shape, the exhaust valve block is arranged between the first positioning bulges, and the intake valve block is arranged between the second positioning bulges.

Furthermore, the exhaust valve plate is in interference fit with the three first positioning bulges, and the suction valve plate is in interference fit with the three second positioning bulges.

Furthermore, a fourth vent hole matched with the exhaust valve sheet is formed in the cylinder cover gasket, a pressing block is arranged in the exhaust cavity, and the pressing block is abutted to one side, close to the first positioning bulge, of the exhaust valve sheet.

Furthermore, a limiting block is arranged in the exhaust cavity and is positioned on one side, away from the first positioning bulge, of the exhaust valve block.

Further, bolt holes are formed in four corners of the machine body, the cylinder opening pad and the cylinder cover.

Furthermore, a gas channel is arranged on the cylinder cover, one end of the gas channel is communicated with the exhaust cavity, and the other end of the gas channel is communicated with one bolt hole in the cylinder cover.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the valve plate assembly is embedded into the cylinder cover, so that the structure of the valve plate assembly is more compact, and meanwhile, compared with the traditional valve plate and valve plate assembled through bolts, the valve plate and valve plate are assembled through an embedded assembly mode, the gap generated by punching of the suction valve plate is reduced, so that the clearance of the air cylinder in the compressor is reduced, and the energy efficiency of the compressor is improved; meanwhile, the assembly process is further simplified, and the production efficiency is improved.

Drawings

Fig. 1 is an exploded view of the present invention;

FIG. 2 is a front view of the valve plate of the present invention on a side close to the body;

FIG. 3 is a front view of the valve plate of the present invention on the side near the cylinder head;

fig. 4 is a schematic perspective view of the cylinder head of the present invention.

In the figure: the cylinder comprises a machine body 1, a piston 2, a cylinder port pad 3, a cylinder head pad 4, a cylinder cover 5, a cylinder head 6, a piston cavity 7, a high-pressure cavity 7, a first vent hole 8, an exhaust cavity 9, a valve plate 10, an air suction valve plate 11, an air discharge valve plate 12, an air suction groove 13, an exhaust groove 14, an air suction hole 15, an exhaust hole 16, a first positioning groove 17, a second positioning groove 18, a positioning block 19, a first positioning protrusion 20, a second positioning protrusion 21, a second vent hole 22, a third vent hole 23, an air suction cavity 24, a fourth vent hole 25, a compression block 26, a limiting block 27 and a gas channel 28.

Detailed Description

The following describes embodiments of the present invention in further detail 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 in specific cases to those skilled in the art.

As shown in fig. 1-4, a valve plate embedded piston compressor comprises a machine body 1, a piston 2, a cylinder port pad 3, a valve plate assembly, a cylinder head pad 4 and a cylinder head 5 which are sequentially arranged, wherein the machine body 1 is provided with a piston cavity 6, the piston 2 is slidably arranged in the piston cavity 6, the cylinder port pad 3 is positioned between the machine body 1 and the cylinder head 5, and the valve plate assembly and the cylinder head pad 4 are arranged in the cylinder head 5. Valve plate subassembly and cylinder head pad 4 inlay in cylinder cap 5, reduce the volume that occupies in the cylinder, cylinder cap 5 and organism 1 pass through bolt fixed connection, set up jar mouthful pad 3 between cylinder cap 5 and the organism 1 and seal, prevent gas leakage.

Further, be equipped with high-pressure chamber 7 on the organism 1, be equipped with on the jar mouthful pad 3 with the first air vent 8 of 7 looks adaptations in high-pressure chamber, be equipped with exhaust chamber 9 on the cylinder cap 5, high-pressure chamber 7 is linked together with exhaust chamber 9, and in the gas in the exhaust chamber 9 got into high-pressure chamber 7 through first air vent 8, high-pressure chamber 7 played the effect of gas storage buffering, can reduce the pressure pulsation of gas in the exhaust chamber 9, improved compressor startability, reduced compressor noise.

Further, the valve plate assembly comprises a valve plate 10, an air suction valve plate 11 and an air discharge valve plate 12, an air suction groove 13 and an air discharge groove 14 are formed in the valve plate 10, the air suction groove 13 and the air discharge groove 14 are located on two sides of the valve plate 10 respectively, an air suction hole 15 is formed in the air suction groove 13, an air discharge hole 16 is formed in the air discharge groove 14, the air suction hole 15 and the air discharge hole 16 penetrate through the valve plate 10, the air suction valve plate 11 is arranged in the air suction groove 13, and the air discharge valve plate 12 is arranged in the air discharge groove 14. The air suction valve plate 11 is assembled in the air suction groove 13 in an embedded mode, the exhaust valve plate 12 is assembled in the exhaust groove 14 in an embedded mode, the effective volume in the cylinder can be further improved, and the compression energy efficiency is improved.

Further, the valve plate 10 is made of powder metallurgy.

Further, the absolute value of the difference between the depth of the suction groove 13 and the thickness of the suction valve plate 11 is less than 0.3mm, and the absolute value of the difference between the depth of the exhaust groove 14 and the thickness of the exhaust valve plate 12 is less than 0.3 mm.

Furthermore, the shapes of the suction valve plate 11 and the exhaust valve plate 12 are completely the same, and the suction valve plate and the exhaust valve plate can be interchanged, so that the universality is improved, and the production and installation cost is reduced.

Further, be equipped with first constant head tank 17 on the valve plate 10, be equipped with the second constant head tank 18 with first constant head tank 17 looks adaptation on the cylinder cap pad 4, be equipped with locating piece 19 on the cylinder cap 5, locating piece 19 card is located in first constant head tank 17 and second constant head tank 18, when in valve plate 10 and the embedding of cylinder cap pad 4 cylinder cap 5, prevents the dislocation, improves the assembly precision.

Further, one side of the valve plate 10 close to the cylinder cover 5 is provided with three first positioning protrusions 20, one side of the valve plate 10 close to the machine body 1 is provided with three second positioning protrusions 21, the first positioning protrusions 20 and the second positioning protrusions 21 are arranged in an isosceles triangle shape, the exhaust valve plate 12 is arranged between the three first positioning protrusions 20, and the exhaust valve plate 11 is arranged between the three second positioning protrusions 21. The cylinder head gasket 4 and the cylinder opening gasket 3 are respectively provided with holes for accommodating the first positioning protrusions 20 and the second positioning protrusions 21.

Furthermore, the exhaust valve plate 12 is in interference fit with the three first positioning protrusions 20, and the suction valve plate 11 is in interference fit with the three second positioning protrusions 21, so that the assembly process is simple, and compared with rivet riveting fixation, the effective volume in the cylinder is further improved.

Further, still be equipped with the second vent hole 22 with piston chamber 6 looks adaptation on the jar mouth pad 3, third vent hole 23 has been seted up on the jar lid pad 4, be equipped with the chamber 24 of breathing in on the cylinder cap 5, the chamber 24 of breathing in is linked together with piston chamber 6, and when breathing in, external gas gets into in piston chamber 6 through breathing in chamber 24, third vent hole 23, suction hole 15 and second vent hole 22 in proper order, exhaust chamber 9 is linked together with piston chamber 6, and when exhausting, the gas in the piston chamber 6 loops through second vent hole 22, exhaust hole 16 and gets into in the exhaust chamber 9.

Furthermore, a fourth vent hole 25 matched with the exhaust valve plate 12 is formed in the cylinder head gasket 4, a pressing block 26 is arranged in the exhaust cavity 9, and the pressing block 26 is abutted against one side, close to the first positioning protrusion 20, of the exhaust valve plate 12. Because the exhaust valve plate 12 bears a large pressure, the compressing block 26 can compress and fix the root of the exhaust valve plate 12, and the exhaust valve plate 12 is prevented from falling from the exhaust groove 14.

Furthermore, a limiting block 27 is arranged in the exhaust cavity 9, and the limiting block 27 is located on one side of the exhaust valve plate 12 away from the first positioning protrusion 20. The limiting block 27 can limit the exhaust valve plate 12 in the opening process, and prevents the exhaust valve plate 12 from being excessively opened and greatly deformed to cause fracture, which affects the service life of the compressor.

Further, bolt holes are formed in four corners of the machine body 1, the cylinder opening pad 3 and the cylinder cover 5, and bolts sequentially penetrate through the corresponding bolt holes in the machine body 1, the cylinder opening pad 3 and the cylinder cover 5 to enable the machine body, the cylinder opening pad 3 and the cylinder cover 5 to be fastened and connected.

Further, a gas passage 28 is arranged on the cylinder cover 5, one end of the gas passage 28 is communicated with the exhaust cavity 9, and the other end of the gas passage 28 is communicated with one bolt hole on the cylinder cover 5. The high-pressure gas in the exhaust chamber 9 can also enter the bolt hole through the gas channel to be exhausted.

The working principle is as follows: when air suction is carried out, the piston 2 moves to one side far away from the cylinder cover 5, outside air sequentially enters the piston cavity 6 through the air suction cavity 24, the third through hole 23, the air suction hole 15 and the second through hole 22, the exhaust valve plate 12 blocks the exhaust hole 16 in the air suction process, the air overcomes the resistance of the air suction valve plate 11, enters the compressor through the air suction hole 15 and is compressed and exhausted, the piston 2 moves to one side near the cylinder cover 5, the air suction hole 15 is blocked by the air suction valve plate 11 in the exhaust process, the air is compressed in the piston cavity 6, after the air is compressed to a certain degree, the pressure in the piston cavity 6 overcomes the resistance of the exhaust valve plate 12, the air in the piston cavity 6 props open the exhaust valve plate 12, the air enters the exhaust cavity 9 through the exhaust hole 16, and a part of the air in the exhaust cavity 9 enters the high-pressure cavity 7 through the first through hole 8 for storage and buffering, the noise is reduced and the other part is discharged from the bolt hole through the gas passage 28, thereby completing one cycle of the compressor. The compressor continuously performs reciprocating circulation, thereby realizing refrigeration work. In the utility model, the air suction valve plate 11 and the air discharge valve plate 12 are embedded into the air suction groove 13 and the air discharge groove 14, so that the occupied volumes of the air suction valve plate 11 and the air discharge valve plate 12 are reduced, and the volumetric efficiency of the valve set is improved; the valve plate assembly is embedded into the cylinder cover 5, so that the assembly difficulty is reduced, the production efficiency is improved, and meanwhile, the valve group clearance is reduced, so that the volumetric efficiency of the compressor is improved, and the performance of the compressor is improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. The utility model provides an embedded piston compressor of valve plate, its characterized in that, including organism (1), piston (2), jar mouth pad (3), valve plate subassembly, jar lid pad (4) and cylinder cap (5) that set gradually, piston chamber (6) have been seted up on organism (1), piston (2) slide and set up in piston chamber (6), jar mouth pad (3) are located between organism (1) and cylinder cap (5), valve plate subassembly and jar lid pad (4) set up in cylinder cap (5).

2. The piston compressor with the embedded valve plate as recited in claim 1, wherein a high pressure cavity (7) is formed in the machine body (1), a first vent hole (8) matched with the high pressure cavity (7) is formed in the cylinder port cushion (3), an exhaust cavity (9) is formed in the cylinder cover (5), and the high pressure cavity (7) is communicated with the exhaust cavity (9).

3. The piston compressor with the embedded valve plate as recited in claim 2, wherein the valve plate assembly comprises a valve plate (10), a suction valve plate (11) and a discharge valve plate (12), the valve plate (10) is provided with a suction groove (13) and a discharge groove (14), the suction groove (13) and the discharge groove (14) are respectively located at two sides of the valve plate (10), the suction groove (13) is provided with a suction hole (15), the discharge groove (14) is provided with a discharge hole (16), the suction valve plate (11) is arranged in the suction groove (13), and the discharge valve plate (12) is arranged in the discharge groove (14).

4. The piston compressor with the embedded valve plate as recited in claim 3, wherein a first positioning groove (17) is formed in the valve plate (10), a second positioning groove (18) matched with the first positioning groove (17) is formed in the cylinder head gasket (4), a positioning block (19) is formed in the cylinder head (5), and the positioning block (19) is clamped in the first positioning groove (17) and the second positioning groove (18).

5. A piston compressor with an embedded valve plate according to claim 3, wherein one side of the valve plate (10) close to the cylinder cover (5) is provided with three first positioning protrusions (20), one side of the valve plate (10) close to the engine body (1) is provided with three second positioning protrusions (21), the three first positioning protrusions (20) and the three second positioning protrusions (21) are all arranged in an isosceles triangle, the exhaust valve plate (12) is arranged between the three first positioning protrusions (20), and the intake valve plate (11) is arranged between the three second positioning protrusions (21).

6. The piston compressor with the embedded valve plate as recited in claim 5, wherein the exhaust valve plate (12) is in interference fit with the three first positioning protrusions (20), and the suction valve plate (11) is in interference fit with the three second positioning protrusions (21).

7. The piston compressor with the embedded valve plate as recited in claim 5, wherein the cylinder head gasket (4) is provided with a fourth vent hole (25) adapted to the exhaust valve plate (12), a compression block (26) is arranged in the exhaust cavity (9), and the compression block (26) is abutted against one side of the exhaust valve plate (12) close to the first positioning protrusion (20).

8. The piston compressor with the embedded valve plate as recited in claim 5, wherein a limiting block (27) is arranged in the exhaust cavity (9), and the limiting block (27) is located on one side of the exhaust valve plate (12) far away from the first positioning protrusion (20).

9. The piston compressor with the embedded valve plate as recited in claim 6, characterized in that bolt holes are formed at four corners of the engine body (1), the cylinder port gasket (3) and the cylinder cover (5).

10. A piston compressor with a built-in valve plate according to claim 9, characterized in that the cylinder cover (5) is provided with a gas passage (28), one end of the gas passage (28) is communicated with the exhaust cavity (9), and the other end is communicated with one of the bolt holes on the cylinder cover (5).