CN111120268A

CN111120268A - Compressor upper cylinder cover assembly and compressor

Info

Publication number: CN111120268A
Application number: CN201811287841.XA
Authority: CN
Inventors: 王海军; 袁浩; 刘杨; 龚晨鸣
Original assignee: Shanghai Highly Electrical Appliances Co Ltd
Current assignee: Shanghai Highly Electrical Appliances Co Ltd
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2020-05-08

Abstract

The invention discloses a compressor upper cylinder cover component and a compressor, wherein the compressor upper cylinder cover component comprises: the upper cylinder cover is provided with at least one exhaust hole, the surface of the exhaust side of the upper cylinder cover is provided with an annular groove, the exhaust holes are positioned in the area outside the annular groove, and each exhaust hole is communicated with the annular groove; and the cover plate is provided with at least one air outlet, the cover plate is covered on the annular groove and the exhaust holes, the cover plate and the annular groove form an annular exhaust passage, the first distance from the air outlet to the central axis of the cylinder cover is smaller than the second distance from the exhaust holes to the central axis of the cylinder cover, and the refrigerant enters the exhaust passage through the exhaust holes and is exhausted from the air outlet of the exhaust passage. The invention can form an exhaust channel through the cover plate and the annular groove arranged on the upper cylinder cover, thereby guiding the refrigerant discharged from the exhaust hole to the central position of the upper cylinder cover for discharging, and reducing the noise caused by discharging the refrigerant.

Description

Compressor upper cylinder cover assembly and compressor

Technical Field

The invention relates to the field of compressors, in particular to an upper cylinder cover assembly of a compressor.

Background

The household air-conditioning product becomes an indispensable household appliance of modern families, and the compressor is the heart of an air-conditioning system, and the compressor sucks low-temperature and low-pressure refrigerant gas from an air suction pipe, drives a piston ring to compress the refrigerant gas through the operation of a motor, and discharges high-temperature and high-pressure refrigerant liquid to an exhaust pipe to provide power for a refrigeration cycle, so that the refrigeration cycle of compression, condensation, expansion, evaporation and heat absorption is realized.

Although air-conditioning products bring comfort to our lives, household appliances emit various noises, which affect the comfortable lives of people. Scientific studies have also shown that: the harm of noise to human body is manifold, firstly, the health is damaged, when a person is exposed to noise environment, especially to work and live in strong noise environment, the person can cause hearing fatigue, temporary auditory range change, hearing reduction and even deafness, and simultaneously, the person can also induce various other diseases, such as insomnia, headache and dysphoria, and can also cause diseases of central nervous system, intestines and stomach, cardiovascular and other aspects. Meanwhile, the noise can disperse the attention of people and reduce the working efficiency due to the influence on life and work.

The cavity acoustic mode is a general name of a cavity acoustic resonance mode, and a sound source radiates noise outwards through the acoustic mode. The pitch line is a general term for the low-response region of the acoustic mode, and is called as the pitch line because the response region is mostly distributed linearly.

Disclosure of Invention

The invention aims to provide an upper cylinder cover assembly of a compressor and the compressor, wherein an exhaust channel is formed by a cover plate and a ring groove arranged on the upper cylinder cover, so that a refrigerant discharged from an exhaust hole is guided to the center of the upper cylinder cover to be discharged, and the noise caused by the discharged refrigerant is reduced.

According to an aspect of the present invention, there is provided a compressor upper head assembly, including:

the exhaust device comprises an upper cylinder cover, a lower cylinder cover and a cylinder cover, wherein the upper cylinder cover is provided with at least one exhaust hole, one side surface of the upper cylinder cover is provided with a ring groove, the exhaust hole is positioned in an area outside the ring groove, and each exhaust hole is communicated with the ring groove; and

the apron, the apron is equipped with at least one gas outlet, the apron lid is located the annular with the exhaust hole, the apron with the annular groove forms one and is annular exhaust passage, the gas outlet extremely the first distance of the axis of last cylinder cap is less than the exhaust hole extremely the second distance of the axis of last cylinder cap, the refrigerant via the exhaust hole gets into exhaust passage, and certainly exhaust passage discharges.

Preferably, the number of the exhaust holes is two.

Preferably, the exhaust holes are distributed along the circumferential direction of the upper cylinder cover.

Preferably, the vent hole is located in an out-of-ring region of the ring groove.

Preferably, the cover plate includes:

the air outlet is arranged on the annular main board;

one or more extension boards that are strip-shaped, the extension board with the exhaust hole one-to-one.

Preferably, the number of the air outlets is 1 to 3.

Preferably, the air outlet includes: the connecting line between the center of the first air outlet and the center of the annular main board is a first connecting line, the connecting line between the center of the second air outlet and the center of the annular main board is a second connecting line, and the first connecting line and the second connecting line are not on the same straight line.

Preferably, the air outlet is a circular through hole, a semicircular through hole or an oval through hole.

Preferably, the exhaust hole is communicated with the annular groove through a groove arranged along the radial direction of the upper cylinder cover

According to one aspect of the present invention, there is provided a compressor including the compressor upper head assembly.

The beneficial effects of the above technical scheme are: the invention can form an exhaust channel through the cover plate and the annular groove arranged on the upper cylinder cover, thereby guiding the refrigerant discharged from the exhaust hole to the central position of the upper cylinder cover for discharging, and reducing the noise caused by discharging the refrigerant.

Further features and advantages of the invention, as well as the structure and operation of various embodiments of the invention, are described in detail below with reference to the accompanying drawings. It should be noted that the present invention is not limited to the specific embodiments described herein. These examples are given herein for illustrative purposes only.

Drawings

Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of an upper cylinder head according to a preferred embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line I-I of FIG. 1 in accordance with a preferred embodiment of the present invention;

FIG. 3 is a schematic view of a cover plate according to a preferred embodiment of the present invention; and

FIG. 4 is a schematic view of the combination structure of the upper cylinder cover and the cover plate according to the preferred embodiment of the present invention.

List of reference numerals:

21 upper cylinder cover

211 first exhaust hole

212 second vent hole

213 air inlet

214 ring groove

215 central axle hole

22 cover plate

221 annular main board

222 first extension plate

223 second extension plate

224 first outlet port

225 second air outlet

23 first straight line

The features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. Throughout the drawings, like reference numerals designate corresponding elements. In the drawings, like reference numbers generally indicate identical, functionally similar, and/or structurally similar elements.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.

The upper cylinder cover assembly of the compressor is applied to a compressor of refrigeration equipment (such as an air conditioner, a refrigerator and the like), and can be but is not limited to an air conditioner compressor.

The above-mentioned compressor may include, but is not limited to: casing, motor element, compression subassembly and bent axle all set up in the inside of casing, and the bent axle is connected between motor element and compression subassembly, and the bent axle is used for transmitting motor element's revolving force to compression subassembly. The compression assembly comprises an upper cylinder cover assembly, a cylinder and a lower cylinder cover, the cylinder is arranged between the upper cylinder cover assembly and the lower cylinder cover, at least one exhaust passage is formed in the side wall of the cylinder, and the upper cylinder cover and the lower cylinder cover are also provided with the exhaust passages and communicated with the exhaust passages on the side wall of the cylinder. And a valve plate corresponding to the exhaust channel is arranged on the outer surface of the upper cylinder cover and covers the exhaust channel corresponding to the upper cylinder cover. The upper cylinder head assembly includes an upper cylinder head 21 and a cover plate. The exhaust holes in the upper cylinder cover 21 and the ring grooves formed in the upper cylinder cover 21 constitute an exhaust passage, so that the refrigerant discharged from the exhaust holes is guided to the center of the upper cylinder cover 21 to be discharged, thereby reducing noise caused by discharging the refrigerant.

The present embodiment provides an upper cylinder head assembly of a compressor, which includes an upper cylinder head 21 and a cover plate 22 cooperating with the upper cylinder head 21 to form a discharge passage.

Referring to fig. 1, fig. 1 is a schematic structural view of an upper cylinder head 21 in the present embodiment. Fig. 1 shows the exhaust side surface of the upper cylinder head 21, from which the refrigerant is discharged. For convenience of description, the exhaust side surface of the upper cylinder head 21 is divided into four quadrants by two straight lines (i.e., XX 'and YY'), the four quadrants are respectively an XOY quadrant (first quadrant), a YOX 'quadrant (second quadrant), an X' OY 'quadrant (third quadrant), and an XOY' quadrant (fourth quadrant), and the point O is a central point of the entire upper cylinder head 21.

Referring to fig. 1, the center of the upper cylinder head 21 is a central shaft hole 215 for the crankshaft to pass through. The outer edge of the upper cylinder head 21 is provided with a plurality of through holes for connection, for example: four through holes for connection are provided in the first quadrant, two through holes for connection are provided in the second quadrant, four through holes for connection are provided in the third quadrant, and four connecting through holes are provided in the fourth quadrant. All through holes for connection are uniformly distributed on the same circle with the O point as the center of the circle.

Referring to fig. 1 and 2, fig. 2 is a schematic sectional view taken along line i-i in fig. 1. The upper cylinder cover 21 is provided with a first exhaust hole and a second exhaust hole, the first exhaust hole 211 is located but not limited to the third quadrant, the second exhaust hole 212 is located but not limited to the first quadrant, and the first exhaust hole 211 and the second exhaust hole 212 are through holes and used for discharging refrigerants. In other embodiments, the number of the exhaust holes of the upper cylinder cover 21 may be one, and the exhaust holes may be disposed in the first quadrant, the second quadrant, the third quadrant, or the fourth quadrant. The number of the exhaust holes of the upper cylinder cover 21 can be three, any one exhaust hole can be arranged in a first quadrant, a second quadrant, a third quadrant or a fourth quadrant, and the diameter of any one or more exhaust holes can be reduced at the moment.

Referring back to fig. 1, the first and second exhaust holes 211 and 212 shown in fig. 1 are centrosymmetric about the center line point O, and the first and second exhaust holes 211 and 212 are uniformly distributed in the circumferential direction of the cylinder head. In other embodiments, when a plurality of exhaust ports are provided, the exhaust ports are also distributed along the circumferential direction of the cylinder head.

Referring again to fig. 1 and 2, the exhaust side surface of the upper cylinder head 21 includes an annular groove 214, and the annular groove 214 is located between the exhaust ports and the central axial bore 215, i.e., the exhaust ports are distributed in the out-of-annular region of the annular groove 214. Wherein, the ring groove 214 is communicated with each exhaust hole (the first exhaust hole 211 and the second exhaust hole 212), and the ring groove 214 is communicated with the exhaust holes through a groove. The groove 214 is also provided with a shallow groove for covering the cover plate 22. The groove 214 may be directly contiguous with the outer wall of the central axial bore 215, i.e., the groove 214 may be formed along the outer wall of the central axial bore 215. The upper cylinder head 21 is further provided with a suction port 213 arranged in the radial direction of the upper cylinder head 21, and the suction port 213 is used for sucking uncompressed low-temperature and low-pressure gas.

Referring to fig. 3, fig. 3 is a schematic structural view of the cover plate 22, and the cover plate 22 can cover the ring groove 214, the first exhaust holes 211, the second exhaust holes 212, and the groove for communicating the ring groove 214 and the exhaust holes to form an exhaust passage. The cover plate 22 includes a ring-shaped main plate, the ring-shaped main plate 221 is connected with two extension plates (a first extension plate 222 and a second extension plate 223), a first end of the extension plate is connected with the ring-shaped main plate 221, and a second end covers the corresponding exhaust hole. The annular main plate 221 can cover the annular groove 214, the first extension plate 222 covers the first exhaust hole 211, and the second extension plate 223 covers the second exhaust hole 212. When the cover plate 22 is placed on the shallow grooves, the space below the cover plate 22 forms an exhaust passage for the refrigerant to pass through.

Referring to fig. 3 again, a first air outlet 224 and a first air outlet 224 are formed in the annular main plate 221 of the cover plate 22, a connection line between the center of the first air outlet 224 and the center of the annular main plate 221 is a first connection line, a connection line between the center of the second air outlet 225 and the center of the annular main plate 221 is a second connection line, and the first connection line and the second connection line are not on the same straight line.

In other embodiments, the number of the air outlets on the cover plate 22 may be one, and in this case, the area of the air outlets needs to be increased to ensure the discharge amount of the refrigerant per unit time. The number of the air outlets of the cover plate 22 may also be three, and any one of the air outlets may be disposed in the first quadrant, the second quadrant, the third quadrant or the fourth quadrant, at this time, the aperture of any one or more air outlets may be reduced.

In a preferred embodiment, the air outlets on the cover plate 22 may be in the shape of circular through holes.

In a preferred embodiment, the air outlets on the cover plate 22 may be in the shape of semicircular through holes.

In a preferred embodiment, the shape of the air outlet on the cover plate 22 may be an oval through hole.

Referring to fig. 4, fig. 4 is a schematic view of a combination structure of the upper cylinder head 21 and the cover plate 22. After the cover plate 22 is completely covered on the upper cylinder head 21, the cover plate 22, the exhaust holes (the first exhaust hole 211 and the second exhaust hole 212) provided in the upper cylinder head 21, and the ring groove 214 located below the cover plate 22 constitute an exhaust passage. The refrigerant is sucked into the cylinder through the suction port 213, and the compressed refrigerant is discharged through the first and second discharge holes 211 and 212, flows into the discharge passage, and is finally discharged through the first and

second discharge ports

224 and 225.

The refrigerant is discharged from the air outlet, so that the discharge position of the refrigerant is close to the pitch line of the acoustic mode of the cavity, the excitation of the acoustic mode of the cavity is effectively inhibited, and the noise of the whole compressor is further reduced.

In summary, the compressor upper cylinder cover assembly and the compressor of the present invention can form the exhaust channel through the cover plate and the ring groove arranged on the upper cylinder cover, so as to guide the refrigerant discharged from the exhaust hole to the center position of the upper cylinder cover for discharging, thereby reducing the noise caused by the discharged refrigerant.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims

1. A compressor upper head assembly, comprising:

2. The compressor upper cylinder head assembly of claim 1, wherein the cover plate comprises:

the air outlet is arranged on the annular main board;

and the first end of the extension plate is connected with the annular main plate, and the second end of the extension plate covers the exhaust hole.

3. The compressor upper cylinder head assembly of claim 2, wherein the air outlet comprises: the connecting line between the center of the first air outlet and the center of the annular main board is a first connecting line, the connecting line between the center of the second air outlet and the center of the annular main board is a second connecting line, and the first connecting line and the second connecting line are not on the same straight line.

4. The compressor upper head assembly as recited in claim 1, wherein the number of said discharge holes is two.

5. The compressor upper head assembly of claim 3, wherein the exhaust holes are distributed along a circumferential direction of the upper head.

6. The compressor upper cylinder head assembly of claim 1, wherein the number of the air outlets is 1-3.

7. The compressor upper cylinder head assembly of claim 1, wherein the air outlet is a circular through hole or a semicircular through hole or an elliptical through hole.

8. The compressor upper head assembly as recited in claim 2, wherein said discharge hole communicates with said ring groove through a groove provided in a radial direction of said upper head.

9. A compressor, characterized in that it comprises a compressor upper head assembly according to any one of claims 1 to 8.