阅读说明：本技术 用于压缩机的轴承和用于压缩机的轴承部件及压缩机 (Bearing for compressor, bearing component for compressor and compressor ) 是由 钟灵煦 洪嘉华 曹小军 于 2018-08-30 设计创作，主要内容包括：本发明公开了一种用于压缩机的轴承和用于压缩机的轴承部件及压缩机,所述轴承上设有排气孔以及排气通道,所述排气通道与所述排气孔的出口相通并延伸到所述排气孔的外部气压低于所述排气孔的空间。根据本发明实施例的用于压缩机的轴承,该轴承可以改变轴承内的涡系结构,打碎排气孔出口处的大涡,从而降低压缩机的噪音。(The invention discloses a bearing for a compressor, a bearing component for the compressor and the compressor. According to the bearing for the compressor provided by the embodiment of the invention, the vortex system structure in the bearing can be changed, and the large vortex at the outlet of the exhaust hole is broken, so that the noise of the compressor is reduced.)

1. A bearing for a compressor is characterized in that an exhaust hole and an exhaust channel are arranged on the bearing, the exhaust channel is communicated with an outlet of the exhaust hole, and the air pressure of the exhaust channel extending to the outside of the bearing is lower than the space of an air inlet of the exhaust channel.

2. The bearing for the compressor as claimed in claim 1, wherein a recess is formed on an outer side surface of the bearing, the discharge hole outlet communicates with an inner space of the recess, and the discharge passage communicates with the inner space of the recess.

3. The bearing for a compressor according to claim 1, wherein the gas outlet of the gas discharge passage is provided at least one of a side surface, a top surface, and a bottom surface of the bearing.

4. The bearing for a compressor of claim 1, wherein at least a portion of the discharge passage is a groove formed on an outer surface of the bearing.

5. The bearing for the compressor of claim 4, wherein the groove extends to a side of the bearing.

6. The bearing for a compressor according to claim 1, wherein the discharge passage is at least one.

7. The bearing for a compressor of claim 1, wherein a cross section of the discharge passage is at least one of circular, square, and oval.

8. The bearing for a compressor according to claim 1, wherein an equivalent diameter D of a cross section of the discharge passage and a thickness H of the bearing satisfy 0.1 ≦ D/H ≦ 0.6.

9. A bearing component for a compressor, comprising:

a bearing for a compressor according to any one of claims 1 to 8;

the exhaust valve block is installed on the bearing, and the exhaust valve block can be selectively opened and closed to the exhaust hole.

10. The bearing part for the compressor as claimed in claim 9, further comprising a lift stopper for limiting a limit position of the discharge valve sheet when the discharge valve sheet opens the discharge hole.

11. The bearing assembly for a compressor of claim 10, wherein the discharge valve plate and the lift stopper plate are riveted to the bearing.

12. A compressor, comprising:

a housing;

a cylinder, wherein an air inlet is arranged on the cylinder, two sides of the cylinder are respectively sealed by a first bearing and a second bearing to form a compression cavity, and the first bearing is a bearing for a compressor according to any one of claims 1 to 8;

a muffler cover outside the first bearing with a sound-deadening chamber formed therebetween, the muffler communicating with an inner space of the housing,

wherein the exhaust hole communicates the compression chamber with the muffling chamber, and the exhaust passage communicates at least one of the muffling chamber and the internal space of the housing.

Technical Field

The invention relates to the technical field of compressors, in particular to a bearing for a compressor, a bearing component for the compressor and the compressor.

Background

In a hermetic compressor, a refrigerant is compressed in a compression chamber of a compression mechanism, and a discharge valve plate is opened when a refrigerant gas is compressed to a predetermined pressure in the compression chamber, particularly in a conventional reed valve structure. The periodic opening and closing of the valve plate causes the vortex structure in the bearing valve seat to change, so that the air flow noise becomes large. Among the noises of the compressor, the vortex structure generated in the exhaust process is the most dominant noise source of the compressor.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

To this end, an object of the invention is to propose a bearing for a compressor and a bearing component for a compressor and a compressor.

According to the bearing of the compressor of the embodiment of the first aspect of the present invention, the bearing can reduce the noise of the compressor.

The bearing member for a compressor according to the embodiment of the second aspect of the present invention has the bearing for a compressor described above.

According to a third aspect of the embodiment of the present invention, the compressor has the bearing member for a compressor described above.

According to the bearing of the compressor in the embodiment of the first aspect of the present invention, the bearing is provided with the exhaust hole and the exhaust channel, the exhaust channel is communicated with the outlet of the exhaust hole, and the exhaust channel extends to the space outside the bearing, where the air pressure is lower than that of the exhaust hole.

According to the bearing for the compressor provided by the embodiment of the invention, the vortex system structure in the bearing can be changed, and the large vortex at the outlet of the exhaust hole is broken, so that the noise of the compressor is reduced.

In addition, the bearing for the compressor according to the above embodiment of the present invention may further have the following additional technical features:

according to one embodiment of the invention, a recess is provided on an outer side surface of the bearing, the exhaust hole outlet communicates with an inner space of the recess, and the exhaust passage communicates with the inner space of the recess.

According to an embodiment of the invention, the air outlet of the air discharge channel is provided at least one of a side surface, a top surface and a bottom surface of the bearing.

According to an embodiment of the invention, at least a part of the exhaust passage is a groove formed on an outer surface of the bearing.

According to an embodiment of the invention, the groove extends to a side of the bearing.

According to one embodiment of the invention, there is at least one exhaust passage.

According to an embodiment of the invention, the cross-section of the exhaust passage is at least one of circular, square and oval.

According to one embodiment of the invention, the equivalent diameter D of the cross section of the exhaust passage and the thickness H of the bearing satisfy 0.1 ≦ D/H ≦ 0.6.

A bearing member for a compressor according to an embodiment of a second aspect of the present invention includes: the bearing is the bearing for the compressor; the exhaust valve block is installed on the bearing, and the exhaust valve block can be selectively opened and closed to the exhaust hole.

The bearing component for the compressor according to the embodiment of the invention comprises the bearing, and the bearing component for the compressor can be used for reducing the noise of the compressor.

According to one embodiment of the invention, the bearing further comprises a lift limiting piece, and the lift limiting piece is used for limiting the limit position of the exhaust valve plate when the exhaust valve plate opens the exhaust hole.

According to one embodiment of the invention, the exhaust valve plate and the lift limiting plate are riveted on the bearing.

According to a third aspect embodiment of the present invention, a compressor includes: a housing; the compressor comprises a cylinder, wherein an air inlet is formed in the cylinder, two sides of the cylinder are respectively sealed by a first bearing and a second bearing to form a compression cavity, and the first bearing is the bearing for the compressor; a muffler cover outside the first bearing and having a sound-deadening chamber formed therebetween, the muffler communicating with an inner space of the housing, wherein the exhaust hole communicates a compression chamber with the sound-deadening chamber, and the exhaust passage communicates at least one of the sound-deadening chamber and the inner space of the housing.

According to the compressor provided by the embodiment of the invention, the bearing is arranged, and the noise is lower when the compressor runs.

Drawings

FIG. 1 is a top view of a bearing component for a compressor according to one embodiment of the present invention;

FIG. 2 is a front view of a bearing component for a compressor according to one embodiment of the present invention;

FIG. 3 is a front view of a bearing component for a compressor according to one embodiment of the present invention;

FIG. 4 is a cross-sectional view of a bearing component for a compressor according to one embodiment of the present invention;

FIG. 5 is a schematic view of a connection of a bearing member for a compressor with a muffler according to an embodiment of the present invention;

fig. 6 is a schematic view of a compressor according to an embodiment of the present invention.

Reference numerals:

the air compressor comprises a compressor 1, a bearing component 100, a bearing 10, an exhaust hole 101, an exhaust channel 102, a recess 103, a lift limiting sheet 20, a shell 200, an air cylinder 300, a compression cavity 301, a silencer 400, a silencing cavity 401 and a second bearing 500.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

A bearing 10 for a compressor, a bearing member 100 for a compressor, and a compressor according to embodiments of the present invention will be described with reference to fig. 1 to 6.

As shown in fig. 1, 2, 3, 4 and 5, the bearing 10 is provided with an exhaust hole 101 and an exhaust channel 102, the exhaust channel 102 is communicated with an outlet of the exhaust hole 101, and the exhaust channel 102 extends to a space outside the bearing 10 where the air pressure is lower than the air inlet of the exhaust channel 102.

It should be noted that, during the operation of the compressor, the exhaust hole 101 may be opened and closed periodically, and the air flow in the exhaust hole 101 may form a large vortex, thereby generating a large noise. Among the noises generated by the operation of the compressor, the vortex generated during the exhaust process is the most dominant noise source of the compressor.

This application is through setting up exhaust passage 102 on bearing 10, and exhaust passage 102 has the effect of water conservancy diversion, can change the structure of the swirl of exhaust hole 101 interior air current, smashes the great swirl in exhaust hole 101 exit to can weaken the air current noise in exhaust hole 101.

The bearing 10 is provided with an exhaust hole 101, and the exhaust hole 101 is used for discharging a refrigerant. It is understood that the bearing 10 of the present application is used in a compressor having a compression chamber 301 therein, and once a refrigerant is compressed to a predetermined pressure in the compression chamber 301, the refrigerant enters the discharge hole 101 from an external space (e.g., the compression chamber 301) at an inlet side of the discharge hole 101 where the pressure is greater, and then is discharged out of the discharge hole 101 from an outlet of the discharge hole 101.

Further, the bearing 10 is provided with an exhaust passage 102, and the exhaust passage 102 communicates with the exhaust hole 101, so that a part of the refrigerant introduced into the exhaust hole 101 is discharged from an outlet of the exhaust hole 101, and another part of the refrigerant introduced into the exhaust hole 101 is introduced into the exhaust passage 102 and discharged from the exhaust passage 102. The pressure at the outlet of the exhaust passage 102 is lower than the pressure at the connection between the exhaust passage 102 and the exhaust hole 101, so that the refrigerant can be smoothly discharged from the exhaust passage 102. That is, the outlet position of the exhaust passage 102 is not limited as long as the pressure at the outlet of the exhaust passage 102 is lower than the pressure at the inlet of the exhaust passage 102.

Therefore, according to the bearing 10 for the compressor provided by the embodiment of the invention, the bearing 10 is provided with the exhaust channel 102, the exhaust channel 102 is communicated with the exhaust hole 101, and the exhaust channel 102 can change the vortex structure of the airflow in the exhaust hole 101, so that the noise of the compressor is reduced, and the bearing 10 is particularly beneficial to reducing the noise of the compressor in the frequency band of 500Hz and 2500 Hz. .

In some embodiments of the present invention, as shown in fig. 1 in conjunction with fig. 4 and 5, a recess 103 is provided on an outer side surface of the bearing 10, the exhaust hole 101 is communicated with an inner space of the recess 103, and the exhaust passage 102 is communicated with the inner space of the recess 103. That is, the air flow entering the air discharge hole 101 flows into the recess 103 from the outlet of the air discharge hole 101, a part of the air flow entering the recess 103 flows to the outer space of the outer side surface of the bearing 10 where the pressure is low, and another part of the air flow entering the recess 103 enters the air discharge passage 102 communicating with the inner space of the recess 103 and is discharged to the outer space of the outer side surface of the bearing 10 where the pressure is low through the air discharge passage 102. Therefore, by arranging the recess 103, when the airflow entering the exhaust hole 101 enters the recess 103, the airflow circulation area is increased, and when the exhaust hole is periodically opened and closed, the recess 103 can form a vortex, and the exhaust channel 102 guides a part of the airflow to break the large vortex, so that the noise caused by the airflow vortex can be reduced.

Of course, the above embodiments are only illustrative and should not be construed as limiting the scope of the present invention, for example, the exhaust passage 102 may also communicate with the exhaust hole 101 or the exhaust passage 102 communicates with both the exhaust hole 101 and the inner space of the recess 103. When the exhaust passage 102 communicates with the exhaust hole 101, the total amount of air flow before entering the recess 103 is reduced, which also has the effect of reducing noise.

In some embodiments, as shown in fig. 2, 3, 4, and 5, the air outlet of the air discharge passage 102 is provided at least one of the side surface, the top surface, and the bottom surface of the bearing 10. In other words, the air outlet of the exhaust channel 102 may be disposed on the side surface of the bearing 10, the air outlet of the exhaust channel 102 may be disposed on the top surface of the bearing 10, the air outlet of the exhaust channel 102 may be disposed on the bottom surface of the bearing 10, the air outlet of the exhaust channel 102 may be disposed on the side surface and the top surface of the bearing 10, the air outlet of the exhaust channel 102 may be disposed on the side surface and the bottom surface of the bearing 10, the air outlet of the exhaust channel 102 may be disposed on the top surface and the bottom surface of the bearing 10, and the air outlet of the exhaust channel 102 may be disposed on. That is, the exhaust passage 102 may have one or more (e.g., two, three, or more) air outlets, and the positions of the air outlets are not limited as long as the air pressure of the external space at the air outlets is lower than the air pressure inside the exhaust holes 101.

In some embodiments, as shown in FIG. 3, at least a portion of the exhaust passage 102 is a groove formed on the outer surface of the bearing 10. In other words, at least a portion of the exhaust passage 102 penetrates the outer surface of the bearing 10, that is, the exhaust passage 102 may be formed integrally as a groove formed on the outer surface of the bearing 10, or one of the sections of the exhaust passage 102 may be formed as a groove formed on the outer surface of the bearing 10. For example, a part of the exhaust passage 102 is provided inside the bearing 10, another part of the exhaust passage 102 is formed of a groove, and the groove formed in the outer surface of the bearing 10 communicates with a part of the exhaust passage 102 inside the bearing 10, wherein the groove may be located at least one of upstream, midstream, and downstream of the exhaust passage 102 inside the bearing 10. It will be appreciated that the bearing 10 is intended for use in a compressor, and that the bearing 10 may be connected to other components of the compressor which are in contact with the outer surface of the bearing 10 in which the recess is provided to close the recess so that the discharge passage 102 does not "blow-by".

In alternative embodiments, as shown in FIG. 3, the grooves extend to the sides of the bearing 10. Therefore, the process for forming the groove is simple, and the production efficiency is improved.

In some embodiments, there is at least one exhaust passage 102. For example, the exhaust passage 102 may be one, two, three, four, or more. Wherein, the air outlet of each air outlet channel 102 can be arranged on the side surface, the top surface or the bottom surface of the bearing 10.

Optionally, the cross-section of the exhaust passage 102 is at least one of circular, square, and oval. That is, the cross section of the exhaust passage 102 may be square, the cross section of the exhaust passage 102 may be circular, and the cross section of the exhaust passage 102 may be oval.

Of course, the exhaust passage 102 may also have a plurality of different cross-sections, for example, the cross-sections of the plurality of different exhaust passages 102 may be square and circular, the cross-sections of the plurality of different exhaust passages 102 may be circular and elliptical, the cross-sections of the plurality of different exhaust passages 102 may be square and elliptical, and the cross-sections of the plurality of different exhaust passages 102 may also be circular, elliptical and square. Specifically, one of the sections of the exhaust passage 102 may be a circular passage or a square passage or an elliptical passage. Of course, the above embodiments are merely illustrative, and the cross-section of the exhaust passage 102 may be pentagonal, hexagonal, or other shapes, for example.

In some embodiments, the equivalent diameter D of the cross-section of the exhaust passage 102 and the thickness H of the bearing 10 satisfy 0.1 ≦ D/H ≦ 0.6. It can be understood that when the air flow entering the exhaust passage 102 is small, the vortex in the exhaust hole 101 is not broken, and the noise reduction effect is poor. Wherein, when D/H is more than or equal to 0.1, more air flows enter the exhaust passage 102, and the silencing effect is better. In practical production, the air flow discharged from the air discharge hole 101 is further muffled by the muffling chamber 401, and the air flow discharged from the air discharge channel 102 can be guided to the muffling chamber 401 or to the external space of the muffling chamber 401 according to practical situations, and when the air flow entering the air discharge channel 102 is large, for example, most of the air flow is discharged to the external space of the bearing 10 through the air discharge channel 102, and when the air flow is not guided into the muffling chamber 401, most of the air flow does not pass through the muffling function of the muffling chamber 401, and the noise is also large, and the muffling effect is not good. When D/H is less than or equal to 0.6, more air flow can be prevented from entering the exhaust passage 102, and the silencing effect is good.

Preferably, the maximum width dimension of the cross-section D1 of the exhaust passage 102 and the thickness H of the bearing 10 satisfy 0.1 ≦ D1/H ≦ 0.6. It is understood that the bearing 10 is a stressed component, and the width of the cross section of the exhaust passage 102 is too large, which affects the stress performance of the bearing 10 and results in a short life of the bearing 10. The dimension setting of the cross section of the bearing is more than or equal to 0.1 and less than or equal to D1/H and less than or equal to 0.6, so that the shunting effect of the exhaust passage 102 is met, and the bearing 10 has better stress performance.

The bearing part 100 for a compressor according to an embodiment of the present invention, as shown in fig. 1, includes a bearing 10 and a discharge valve sheet (not shown).

Wherein, the bearing 10 is the above-mentioned bearing 10 for the compressor, the discharge valve piece is installed on the bearing 10, and the discharge hole 101 can be selectively opened and closed by the discharge valve piece.

That is to say, the discharge valve piece can control opening and closing of exhaust hole 101, and when exhaust hole 101 was opened, the air current can pass exhaust hole 101 and discharge, and when exhaust hole 101 was closed, the air current in the compressor can't be discharged through exhaust hole 101, and like this, the discharge valve piece can control the outflow of refrigerant.

Thus, according to the bearing part 100 for the compressor of the embodiment of the present invention, the bearing part 100 includes the bearing 10 for the compressor as described above, and the bearing part 100 can reduce noise of the compressor.

In some embodiments, as shown in fig. 1, the bearing 10 further includes a lift limiting plate 20, and the lift limiting plate 20 is used for limiting a limit position of the exhaust valve plate when the exhaust valve plate opens the exhaust hole 101. Therefore, the exhaust valve plate can be prevented from generating large deformation, and the service life of the exhaust valve plate can be prolonged.

Further, the exhaust valve plate and the lift limiting plate 20 are riveted on the bearing 10. Therefore, the exhaust valve plate, the lift limiting plate 20 and the bearing 10 are connected into a whole, and the installation is convenient.

The compressor according to the embodiment of the present invention, as shown in fig. 6, includes a housing 200, a cylinder 300, and a muffler 400.

An air inlet is arranged on the air cylinder 300, two sides of the air cylinder 300 are respectively sealed by the first bearing 10 and the second bearing 10 to form a compression cavity 301, and the first bearing 10 is the bearing 10 for the compressor.

The refrigerant enters the compression chamber 301 of the compressor through the intake port of the cylinder 300, the refrigerant entering the compression chamber 301 is compressed, and once the refrigerant is compressed to a predetermined pressure in the compression chamber 301, the refrigerant enters the discharge hole 101 from the side where the pressure of the discharge hole 101 is greater, and then is discharged out of the discharge hole 101 from the side where the pressure of the discharge hole 101 is less.

Further, the bearing 10 is provided with an exhaust passage 102, and the exhaust passage 102 communicates with the exhaust hole 101, so that a part of the refrigerant introduced into the exhaust hole 101 is discharged from an outlet of the exhaust hole 101, and another part of the refrigerant introduced into the exhaust hole 101 is introduced into the exhaust passage 102 and discharged from the exhaust passage 102.

The muffler 400 is covered on the outside of the first bearing 10, and a sound-deadening chamber 401 is formed between the muffler 400 and the first bearing 10, the muffler 400 communicates with the inner space of the housing 200, wherein the exhaust hole 101 communicates the compression chamber 301 with the sound-deadening chamber 401, and the exhaust passage 102 communicates with at least one of the sound-deadening chamber 401 with the inner space of the housing 200.

That is, a part of the air flow in the compression chamber 301 entering the air discharge hole 101 flows to the sound-deadening chamber 401, and flows to the inner space of the housing 200 by the sound-deadening action of the sound-deadening chamber 401; another part of the gas flow entering the exhaust hole 101 flows toward the exhaust passage 102, and the gas flow entering the exhaust passage 102 is discharged toward the inner space of the housing 200 and/or the sound-deadening chamber 401.

Therefore, according to the compressor provided by the embodiment of the invention, the interior of the compressor is provided with the double noise reduction structure, and the noise is low in operation.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation 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 are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.