CN115653903A - Compressor front cover assembly and compressor - Google Patents

Abstract

The invention relates to the field of compressors, in particular to a front cover component of a compressor and the compressor; an exhaust cavity, an air inlet and an air outlet of the exhaust cavity are formed in the front cover; the oil distribution pipe comprises an air outlet end and an air inlet end, and the outer peripheral surface of the oil distribution pipe comprises a fixed section close to the air outlet end and an oil distribution section close to the air inlet end; the oil distribution pipe is arranged in the exhaust cavity through the fixed section, and the air outlet end faces the exhaust port; an oil distribution loop is formed between the outer wall of the oil distribution section and the inner wall of the exhaust cavity, and the air inlet is communicated with the oil distribution loop; an oil storage chamber formed below the exhaust chamber; the baffle block is formed between the oil storage cavity and the exhaust cavity, a communication hole communicated between the exhaust cavity and the oil storage cavity is formed in the baffle block, and an inlet of the communication hole is communicated with the exhaust cavity; the caliber of the inlet of the communicating hole is smaller than the diameter of the exhaust cavity so as to solve the technical problem that the separated lubricating oil is carried by the gas and flows out of the compressor again after entering the oil storage cavity, so that the oil discharge rate of the compressor is high.

Description

Compressor front cover assembly and compressor

Technical Field

The invention relates to the field of compressors, in particular to a compressor front cover assembly and a compressor.

Background

The oil outlet rate of the compressor of the air conditioner directly influences the working performance of the compressor, if the oil outlet rate of the compressor is high, the oil return effect of the compressor is poor, and even impurities are discharged during working, so that the heat exchange capacity of an evaporator and a condenser is influenced, and the heat exchange effect of the air conditioner is reduced; when the oil return effect is low and impurities are discharged, the compressor can be excessively worn; therefore, it is important to reduce the oil yield of the compressor, reduce the oil content of the system, and ensure the sufficient lubrication of the compressor.

After entering from an air inlet of the end cover, a high-pressure refrigerant collides with the oil distribution pipe, a small part of lubricating oil in the refrigerant is separated due to the fact that the lubricating oil collides with the oil distribution pipe and flows downwards along the outer wall of the oil distribution pipe, and when reaching the bottom end of the oil distribution pipe, the lubricating oil is rolled by the high-speed refrigerant and is discharged out of the compressor along with the high-speed refrigerant, so that the oil discharge rate of the compressor is high;

in order to solve the problem that the lubricating oil at the bottom of the exhaust cavity is rewound by the high-pressure refrigerant, in the prior art, an oil storage cavity is arranged at the bottom of the exhaust cavity, and the separated lubricating oil enters the oil storage cavity, so that the stirring of the high-pressure refrigerant to the separated lubricating oil is reduced; but a channel for lubricating oil to flow in is arranged between the exhaust cavity and the oil storage cavity, and the high-pressure refrigerant still enters the oil storage cavity along the channel to stir the lubricating oil in the oil storage cavity; when the gas stirs the lubricating oil in the cavity and then flows out of the oil storage cavity, the lubricating oil in the oil storage cavity at the bottom can still be rolled up, so that the oil spitting rate reducing effect of the compressor is not ideal.

In view of the above technical problems, no better solution is available at present.

Disclosure of Invention

In order to solve the technical problem that the oil is discharged out of the compressor again by being carried by gas after the separated lubricating oil enters the oil storage cavity, the compressor front cover assembly and the compressor are provided.

In one aspect the present invention provides a compressor front cover assembly comprising:

the front cover is internally provided with an exhaust cavity, and an air inlet and an air outlet of the exhaust cavity;

the oil distribution pipe comprises an air outlet end and an air inlet end, the oil distribution pipe is arranged in the exhaust cavity in the vertical direction, and the air outlet end faces the exhaust port;

an oil storage chamber formed below the exhaust chamber;

the baffle block is formed between the oil storage cavity and the exhaust cavity, a communication hole for communicating the exhaust cavity and the oil storage cavity is formed in the baffle block, and an inlet of the communication hole is communicated with the exhaust cavity; the aperture of the inlet of the communicating hole is smaller than the diameter of the exhaust cavity.

Preferably, the inlet of the communication hole is eccentrically arranged relative to the oil distribution pipe.

Preferably, the communication hole includes a first inclined hole, and an outlet of the first inclined hole communicates with the oil reservoir chamber;

the downward rotating direction of the gas entering the exhaust cavity from the gas inlet hole around the oil distribution pipe is opposite to the downward inclined direction of the first inclined hole.

Preferably, the communication hole further includes a second inclined hole, and a downward inclination direction of the second inclined hole is opposite to a downward inclination direction of the first inclined hole;

the second inclined hole is positioned above the first inclined hole, an inlet of the second inclined hole is communicated with the oil distribution cavity, and an outlet of the second inclined hole is communicated with an inlet of the first inclined hole.

Preferably, an oil distribution cover is arranged in the oil distribution pipe and arranged at the air outlet end.

Preferably, the air outlet is formed with a first oil discharge flow path, the inner wall of the exhaust cavity is formed with a second oil discharge flow path, and the lubricating oil separated by the oil distribution cover can flow into the communication hole through the first oil discharge flow path and the second oil discharge flow path in sequence under the action of gravity.

Preferably, the inner wall of the air outlet end forms a step structure, the step structure comprises a first wall surface, a second wall surface and a step surface connected between the first wall surface and the second wall surface, and the first wall surface is connected with the end surface of the air outlet end; the second wall surface is positioned on the inner side of the step surface, and the first wall surface is positioned on the outer side of the step surface;

the oil distribution cover comprises an annular block, an outer peripheral wall is formed on the annular block, the axial lower part of the outer peripheral wall is connected with the second wall surface in a sealing mode, a first groove is formed among the axial upper part of the outer peripheral wall, the step surface and the first wall surface, a first oil discharge hole is formed at the air outlet end, one end of the first oil discharge hole is communicated with the first groove, and the other end of the first oil discharge hole is communicated with the second oil discharge flow path; the first oil discharge flow path includes the first groove and the first oil discharge hole.

Preferably, a second groove is formed in an inner wall of the exhaust chamber, and one end of the second groove communicates with the first oil discharge hole and the other end communicates with the communication hole.

Preferably, the oil distribution cover comprises an annular block, the outer peripheral wall of the annular block is hermetically connected with the inner wall of the air outlet end, an oil receiving ring is arranged below the annular block, the outer peripheral wall surface of the oil receiving ring is attached to the inner wall surface of the oil distribution pipe, an oil receiving groove with an upward opening is formed in the oil receiving ring, and the lubricating oil separated by the oil distribution cover can flow into the oil receiving groove along the inner wall of the annular block;

an oil drainage hole is formed in the oil receiving groove, a second oil drainage hole is formed in the oil distribution pipe, and the second oil drainage hole is communicated with the oil drainage hole;

and a third groove is formed in the inner wall of the exhaust cavity, one end of the third groove is communicated with the second oil drain hole, and the other end of the third groove is communicated with the communicating hole.

In a second aspect, the invention provides a compressor comprising the compressor front cover assembly.

Preferably, the compressor is a scroll compressor, the scroll compressor comprises a static disc, the static disc is provided with a first matching surface, the front cover is provided with a second matching surface, and the first matching surface and the second matching surface are oppositely and hermetically connected;

the first fitting surface is sunken to be formed with the oil storage tank the oil storage chamber orientation the quiet dish extends to the second fitting surface, the oil storage chamber with the oil storage tank intercommunication.

According to the invention, the baffle block is arranged between the exhaust cavity and the oil storage cavity, and the communicating hole is formed in the baffle block, so that after the lubricating oil separation of the gas containing the lubricating oil entering the exhaust cavity from the air inlet is completed, the lubricating oil flows downwards along the inner wall surface of the exhaust cavity through the communicating hole and flows into the oil storage cavity; the gas spirally moves downwards around the oil distribution section of the oil distribution pipe, the edge of the gas in the exhaust cavity spirally moves to the bottom of the oil distribution cavity and then upwards moves after being gathered at the middle part, and the gas upwards moves to enter the oil distribution pipe through the gas inlet end and is discharged out of the oil distribution pipe through the gas outlet end; because set up the separation block between oil storage chamber and exhaust chamber, when gas diversion upward flow in exhaust chamber bottom, reduced the stirring to oil storage intracavity lubricating oil, prevent that gas upward movement from driving the lubricating oil of oil storage intracavity and getting into and dividing oil pipe, lead to dividing the oil effect to descend to the branch oil pipe's that has guaranteed divides oil pipe's branch oil effect and has reduced the content of oil storage intracavity lubricating oil gaseous state refrigerant.

Drawings

FIG. 1 is a partial cross-sectional view of a compressor in accordance with an embodiment of the present invention;

FIG. 2 is an enlarged view of the embodiment A in FIG. 1;

FIG. 3 is an enlarged view of the second embodiment shown at A in FIG. 1;

FIG. 4 is a partial cross-sectional view of a compressor according to an embodiment of the present invention with a first angled bore and a second angled bore;

FIG. 5 is an enlarged view of the embodiment of the present invention at B in FIG. 4;

FIG. 6 is a schematic diagram of an appearance of a front cover according to an embodiment of the present invention;

fig. 7 is an external view of a stationary disc according to an embodiment of the present invention.

The reference numerals are represented as:

1. a front cover; 101. an exhaust chamber; 102. an air inlet; 103. an exhaust port; 104. an oil storage chamber; 2. an oil distributing pipe; 3. a barrier block; 301. a communicating hole; 4. an oil separating cover; 401. a ring block; 5. a step structure; 501. a first wall surface; 502. a second wall surface; 503. a step surface; 601. a first trench; 602. a second trench; 603. a third trench; 701. a first oil discharge hole; 702. a second oil drain hole; 8. an oil ring is connected; 801. an oil receiving groove; 802. an oil drainage hole; 9. a stationary disc; 901. an oil storage tank; 3011. a first inclined hole; 3012. a second angled bore.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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 terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship; the first and second terms are used only for distinguishing different technical features, and are not in a sequential order; the terms "upper", "lower", "front" and "rear" are also used for convenience of describing the positional relationship of technical features, and should be used in a certain sense or in combination with the foregoing description of specific orientations, and are not absolute positional relationships.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of additional like elements in a commodity or system comprising the element.

The invention relates to the field of compressors, in particular to a compressor front cover assembly and a compressor.

The oil outlet rate of the compressor of the air conditioner directly influences the working performance of the compressor, if the oil outlet rate of the compressor is high, the oil return effect of the compressor is poor, and even impurities are discharged during working, so that the heat exchange capacity of an evaporator and a condenser is influenced, and the heat exchange effect of the air conditioner is reduced; when the oil return effect is low and impurities are discharged, the compressor can be excessively worn; therefore, it is important to reduce the oil yield of the compressor, reduce the oil content of the system, and ensure the sufficient lubrication of the compressor. The lubricating oil after separation in the existing scroll compressor is arranged below the exhaust cavity, and the gas is stirred when being discharged by the oil distribution pipe, so that part of the separated lubricating oil is carried again and is discharged by the oil distribution pipe, and the lubricating oil separation effect is poor.

Among the prior art, set up the oil storage chamber in the below in the exhaust chamber and store the lubricating oil after the separation, but the intercommunication passageway between oil storage chamber and the exhaust chamber still can make gas cause the stirring to the lubricating oil in the oil storage chamber to increase the content of gas refrigerant in the lubricating oil in the oil storage chamber.

In order to solve the technical problems, the invention provides a front cover component of a compressor and the compressor;

in one aspect, the present invention provides a compressor front cover 1 assembly, as shown in fig. 1-7, comprising: the air conditioner comprises a front cover 1, wherein an exhaust cavity 101, an air inlet hole 102 of the exhaust cavity 101 and an air outlet 103 are formed in the front cover 1; the oil distribution pipe 2 comprises an air outlet end and an air inlet end, the oil distribution pipe 2 is arranged in the exhaust cavity 101 in the vertical direction, and the air outlet end faces the exhaust port 103; a reservoir chamber 104 formed below the exhaust chamber 101; a blocking block 3 formed between the oil storage chamber 104 and the exhaust chamber 101, a communication hole 301 for communicating the exhaust chamber 101 and the oil storage chamber 104 is formed on the blocking block 3, and an inlet of the communication hole 301 is communicated with the exhaust chamber 101; the aperture of the inlet of the communication hole 301 is smaller than the diameter of the exhaust chamber 101.

After the gas containing lubricating oil entering the exhaust cavity 101 from the air inlet hole 102 completes the lubricating oil separation, the lubricating oil flows downwards along the inner wall surface of the exhaust cavity 101 through the communication hole 301 into the oil storage cavity 104; the gas spirally moves downwards around the oil distributing section of the oil distributing pipe 2, the edge of the gas in the exhaust cavity 101 spirally moves to the bottom of the oil distributing cavity and then gathers in the middle of the oil distributing cavity and then moves upwards, and the gas moves upwards, enters the oil distributing pipe 2 through the gas inlet end and is discharged out of the oil distributing pipe 2 through the gas outlet end; the separation block 3 is arranged between the oil storage cavity 104 and the exhaust cavity 101, when the gas changes direction and flows upwards at the bottom of the exhaust cavity 101, the stirring of lubricating oil in the oil storage cavity 104 is reduced, and the phenomenon that the lubricating oil in the oil storage cavity 104 is driven to enter the oil distribution pipe 2 when the gas moves upwards to cause the reduction of the oil distribution effect is prevented, so that the oil distribution effect of the oil distribution pipe 2 is ensured, the content of gaseous refrigerant of the lubricating oil in the oil storage cavity 104 is reduced, and the adverse effect on the lubrication of the compressor when the lubricating oil containing more refrigerant returns to the low-pressure side is avoided; the caliber of the inlet of the communication hole 301 is smaller than the diameter of the exhaust cavity 101, so that the gas entering the oil storage cavity 104 is greatly reduced, the stirring of the gas on the lubricating oil in the oil storage cavity 104 is reduced, and the content of gaseous refrigerant in the lubricating oil in the oil storage cavity 104 is reduced; it should be noted that the "oil distribution pipe 2 is disposed in the exhaust chamber 101 in the up-down direction", and the oil distribution pipe 2 is not required to be disposed vertically, and the "up-down direction" is a non-horizontal direction, so that the separated lubricating oil can flow downward into the oil storage chamber under the action of its own weight.

To further reduce the stirring of the lubricating oil in the oil storage chamber 104 by the gas, the inlet of the communication hole 301 is eccentrically arranged with respect to the oil distribution pipe 2.

The communicating hole 301 is eccentrically arranged, so that a high pressure area is formed at the edge of the exhaust cavity 101 when gas makes downward spiral motion in the edge of the exhaust cavity 101, the communicating hole 301 is arranged at the high pressure area, the lubricating oil in the oil storage cavity 104 has a pressurizing effect, and the lubricating oil in the oil storage cavity 104 is accelerated to flow outwards.

Preferably, in order to further reduce the interference of the gas in the gas discharge chamber 101 with the lubricating oil in the oil storage chamber 104, as shown in fig. 4-5, the communication hole 301 includes a first inclined hole 3011, and the outlet of the first inclined hole 3011 communicates with the oil storage chamber 104; the rotation direction of the gas entering the exhaust chamber 101 from the gas inlet hole 102 around the oil distribution pipe 2 is opposite to the downward inclination direction of the first inclined hole 3011.

The downward inclined direction of the first inclined hole 3011 is opposite to the downward spiral direction of the gas, so that the gas is prevented from being discharged upwards from the connecting hole again after directly entering the connecting hole to carry lubricating oil, the stirring of the gas in the exhaust cavity 101 on the lubricating oil in the oil storage cavity 104 is effectively reduced, and the content of gaseous refrigerant in the lubricating oil in the oil storage cavity 104 is reduced.

Preferably, as shown in fig. 4 to 5, the communication hole 301 further includes a second inclined hole 3012, and the downward inclination direction of the second inclined hole 3012 is opposite to the downward inclination direction of the first inclined hole 3011; the second inclined hole 3012 is located above the first inclined hole 3011, an inlet of the second inclined hole 3012 is communicated with the oil distribution cavity, and an outlet of the second inclined hole 3012 is communicated with an inlet of the first inclined hole 3011.

The direction of the downward spiral movement of the gas in the exhaust chamber 101 is related to the orientation of the gas inlet 102, taking fig. 4 as an example, when the gas exhausted from the gas inlet 102 first passes through the rear side of the oil distribution pipe 2, the gas rotates counterclockwise in the top view of fig. 4, at this time, in fig. 4, the second inclined hole 3012 is arranged at the front side of the exhaust chamber 101, and when the gas spirals downward to the bottom, the direction of the gas is consistent with the second inclined hole 3012; similarly, when the gas discharged from the gas inlet hole 102 passes through the front side of the oil distribution pipe 2 first, the second inclined hole 3012 needs to be disposed at the rear side of the gas discharge chamber 101.

The downward gas of spiral passes through second inclined hole 3012 and further pressurizes the lubricating oil in oil storage chamber 104 earlier, and flow direction changes when passing through first inclined hole 3011 again, has reduced the direct impact to lubricating oil of gas on the one hand, and simultaneously, the gaseous collision that has increased when gas is discharged once more by oil storage chamber 104 through intercommunicating pore 301 has separated the lubricating oil in the gas.

Because the gas entering the oil distribution cover 4 still contains lubricating oil, the lubricating oil entering the oil distribution pipe 2 needs to be separated again; preferably, as shown in fig. 1, an oil distribution cover 4 is arranged in the oil distribution pipe 2, and the oil distribution cover 4 is arranged at the air outlet end.

Part of the lubricating oil is the part of the lubricating oil which is rolled up when the gas flows in the exhaust cavity 101, the gas enters the oil distribution pipe 2, the lubricating oil in the gas is separated again in the oil distribution pipe 2 and the oil distribution cover 4, and the oil discharge rate of the compressor is effectively reduced.

Preferably, a first drain flow path is formed at the outlet end, a second drain flow path is formed on the inner wall of the exhaust chamber 101, and the lubricating oil separated by the oil-separating cover 4 can flow into the communication hole 301 through the first drain flow path and the second drain flow path in sequence by the action of gravity.

The lubricating oil separated by the oil passing cover 4 enters the oil storage cavity 104 through the first oil discharge flow path and the second oil discharge flow path, so that the separated lubricating oil is prevented from being taken away again when the gas moves in the exhaust cavity 101, the separation effect of the lubricating oil in the gas is ensured, and the oil spitting rate of the compressor is reduced.

After the oil separation cover 4 separates the gas again, there are various ways for the separated lubricating oil to be discharged to the oil storage chamber 104:

in the first embodiment, as shown in fig. 2, a step structure 5 is formed on the inner wall of the gas outlet end, the step structure 5 includes a first wall 501, a second wall 502 and a step surface 503 connecting the first wall 501 and the second wall 502, and the first wall 501 is connected to the end surface of the gas outlet end; the second wall surface 502 is located inside the step surface 503, and the first wall surface 501 is located outside the step surface 503; the oil separating cover 4 comprises an annular block 401, the annular block 401 is provided with an outer peripheral wall, the axial lower part of the outer peripheral wall is connected with the second wall 502 in a sealing way, a first groove 601 is formed among the axial upper part of the outer peripheral wall, the step surface 503 and the first wall 501, the air outlet end forms a first oil outlet hole 701, one end of the first oil outlet hole 701 leads to the first groove 601, and the other end leads to a second oil outlet flow path; the first oil discharge flow path includes a first groove 601 and a first oil discharge hole 701. The inner wall of the discharge chamber 101 is formed with a second groove 602, one end of the second groove 602 communicates with the first discharge hole 701, and the other end communicates with the communication hole 301.

The lubricating oil separated by the oil distributing cover 4 is collected in the first groove 601 and discharged into the oil storage chamber 104 through the first oil discharge hole 701, the second flow path and the communicating hole 301, and the lubricating oil separated by the oil distributing cover 4 flows into the oil storage chamber 104 from the outside of the oil distributing pipe 2; on one hand, the first groove 601 can be used for temporarily storing lubricating oil separated by the oil separating cover 4, and on the other hand, the lubricating oil separated by the oil separating cover flows from the outside, so that the separated lubricating oil is effectively prevented from being taken away again when the gas in the oil separating pipe 2 flows upwards. The lubricating oil separated by the oil separating cover 4 flows along the second groove 602 when flowing in the exhaust cavity 101, so that the separated lubricating oil is prevented from being taken away again when gas flows in the exhaust cavity 101, and the oil spitting rate of the compressor is reduced; meanwhile, when the gas does spiral motion in the exhaust cavity 101, the gas collides with the side wall of the second groove 602 to improve the separation efficiency of the lubricating oil in the gas, and when the gas passes through the second groove 602, part of the gas flows downwards along the groove to accelerate the downward flow speed of the lubricating oil in the groove, so that the interference of the gas on the lubricating oil in the exhaust cavity 101 is further reduced.

In a second embodiment, as shown in fig. 3, the oil distribution cover 4 includes an annular block 401, the outer circumferential wall of the annular block 401 is connected with the inner wall of the air outlet end in a sealing manner, an oil receiving ring 8 is arranged below the annular block 401, the outer circumferential wall surface of the oil receiving ring 8 is attached to the inner wall surface of the oil distribution pipe 2, an oil receiving groove 801 with an upward opening is formed in the oil receiving ring 8, and the lubricating oil separated by the oil distribution cover 4 can flow into the oil receiving groove 801 along the inner wall of the annular block 401; an oil drainage hole 802 is formed in the oil receiving groove 801, a second oil drainage hole 702 is formed in the oil distribution pipe 2, and the second oil drainage hole 702 is communicated with the oil drainage hole 802; the inner wall of the exhaust chamber 101 is formed with a third groove 603, and one end of the third groove 603 communicates with the second drain hole 702 and the other end communicates with the communication hole 301.

The lubricating oil separated by the oil separating cover 4 enters the oil receiving groove 801 on the oil receiving ring 8 along the inner wall of the annular block 401, and the lubricating oil is collected in the oil receiving groove 801 and enters the oil storage cavity 104 through the oil drainage hole 802, the second oil drainage hole 702, the third groove 603 and the communication hole 301; lubricating oil gets into from the inboard downflow of annular piece 401 and connects oil groove 801, on the one hand, connect oil groove 801 can be used for collecting and temporarily store the lubricating oil of being divided the oil cover 4 separation, on the other hand, lubricating oil gets into and connects oil groove 801 can avoid being divided the lubricating oil after oil cover 4 separation to flow downwards along the inner wall of dividing oil pipe 2, and then reduced the interference of the gas that flows in dividing oil pipe 2 to the lubricating oil after the separation, avoid gas to take away the lubricating oil after the separation again, the oil spitting rate of compressor has been reduced.

In another aspect, the invention provides a compressor, which comprises the above compressor front cover 1 assembly; lubricating oil in the refrigerant at the high-pressure side in the compressor is effectively separated, so that the heat exchange efficiency of the refrigerant is ensured, the oil circuit lubrication of moving parts inside the compressor is ensured, and the working stability of the compressor is improved.

The compressor is a scroll compressor, the scroll compressor comprises a static disc 9, as shown in fig. 7, the static disc 9 is provided with a first matching surface, the front cover 1 is provided with a second matching surface, as shown in fig. 6, the first matching surface and the second matching surface are oppositely and hermetically connected; the first mating surface is concavely provided with a reservoir 901, and the reservoir 104 extends to the second mating surface towards the static plate 9, and the reservoir 104 is communicated with the reservoir 901.

Through making oil storage chamber 104 extend towards quiet dish 9, make oil storage chamber 104 and the oil storage tank 901 intercommunication on the quiet dish 9, the effectual volume that enlarges oil storage chamber 104 has further reduced the stirring of high-pressure refrigerant to lubricating oil in the oil storage chamber 104, has reduced the gaseous state refrigerant that contains in the lubricating oil, when lubricating oil returns the low pressure side through the quiet dish oil gallery, the effectual efficiency that improves the compressor.

The flow of the high-pressure gas containing the lubricant oil during the operation of the scroll compressor is described as follows:

the scroll compressor works, the high-pressure gas containing lubricating oil is discharged from the gas outlet of the static disc 9 (for convenience of introduction, the gas below refers to the high-pressure gas containing lubricating oil), the gas enters the exhaust cavity 101 in the front cover 1 from the gas inlet 102, the axis of the gas inlet 102 does not intersect with the axis of the oil distribution pipe 2, when the gas enters the exhaust cavity 101 from the gas inlet 102, the gas makes a downward spiral motion around the outer wall of the oil distribution pipe 2, in the spiral motion, the lubricating oil in the gas is separated under the action of centrifugal force, collision with the outer wall of the oil distribution pipe 2 and collision with the inner wall of the exhaust cavity 101 and flows downward along the inner wall of the exhaust cavity 101 and the outer wall of the oil distribution pipe 2, and the separated lubricating oil enters the oil storage cavity 104 through the communication hole 301 on the blocking block 3; the gas spirally moves downwards to collide with the blocking block 3, then gathers in the middle part, then moves downwards and enters the oil distribution pipe 2, and because the gas contains no separated lubricating oil, when the blocking block 3 collides, the gas inevitably enters the oil storage cavity 104 through the communicating hole 301 to drive part of the lubricating oil to enter the exhaust cavity 101 again; when the gas enters the oil distribution pipe 2 upwards and passes through the oil distribution cover 4, the lubricating oil in the gas is separated by the oil distribution cover 4 again, and the separated lubricating oil enters the oil storage cavity 104 along the first groove 601, the first oil discharge hole 701 and the second groove 602, or enters the oil storage cavity 104 along the oil receiving groove 801, the oil discharge hole 802, the second oil discharge hole 702 and the third groove 603; the oil separating cover 4 can separate lubricating oil and impurities in gas to a certain extent, and the separated impurities are adhered to the oil separating cover and taken away by the separated lubricating oil.

The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (11)

1. A compressor front cover assembly, comprising:

the air conditioner comprises a front cover (1), wherein an exhaust cavity (101), an air inlet (102) of the exhaust cavity (101) and an air outlet (103) are formed in the front cover (1);

the oil distribution pipe (2) comprises an air outlet end and an air inlet end, the oil distribution pipe is arranged in the exhaust cavity (101) in the vertical direction, and the air outlet end faces the exhaust port (103);

a reservoir chamber (104) formed below the discharge chamber (101);

the baffle block (3) forms oil storage chamber (104) with between the chamber of exhausting (101), be formed with the intercommunication on baffle block (3) exhaust chamber (101) with intercommunicating pore (301) between oil storage chamber (104), the import of intercommunicating pore (301) with exhaust chamber (101) intercommunication, the bore of the import of intercommunicating pore (301) is less than the diameter in exhaust chamber (101).

2. Compressor front cover assembly according to claim 1, characterized in that the inlet of said communication hole (301) is eccentrically arranged with respect to said oil distribution pipe (2).

3. The compressor front cover assembly according to claim 2, wherein the communication hole (301) includes a first inclined hole (3011), an outlet of the first inclined hole (3011) communicates with the oil storage chamber (104);

the downward rotating direction of the gas entering the exhaust cavity (101) from the gas inlet hole (102) around the oil distribution pipe (2) is opposite to the downward inclined direction of the first inclined hole (3011).

4. The compressor front cover assembly according to claim 3, wherein the communication hole (301) further comprises a second inclined hole (3012), and a downward inclination direction of the second inclined hole (3012) is opposite to a downward inclination direction of the first inclined hole (3011);

the second inclined hole (3012) is located above the first inclined hole (3011), an inlet of the second inclined hole (3012) is communicated with the oil distribution cavity, and an outlet of the second inclined hole (3012) is communicated with an inlet of the first inclined hole (3011).

5. The compressor front cover assembly according to any one of claims 1 to 4, characterized in that an oil distribution cover (4) is arranged in the oil distribution pipe (2), and the oil distribution cover (4) is arranged at the air outlet end.

6. The compressor front cover assembly according to claim 5, wherein a first oil discharge flow path is formed at the air outlet, a second oil discharge flow path is formed at the inner wall of the air discharge chamber (101), and the lubricating oil separated by the oil distribution cover (4) can flow into the communication hole (301) through the first oil discharge flow path and the second oil discharge flow path in sequence under the action of gravity.

7. The compressor front cover assembly according to claim 6, wherein the inner wall of the gas outlet end forms a step structure (5), the step structure (5) comprises a first wall surface (501), a second wall surface (502) and a step surface (503) connecting the first wall surface (501) and the second wall surface (502), and the first wall surface (501) is connected with the end surface of the gas outlet end; the second wall surface (502) is located on the inner side of the step surface (503), and the first wall surface (501) is located on the outer side of the step surface (503);

the oil distribution cover (4) comprises an annular block (401), an outer peripheral wall is formed on the annular block (401), the axial lower part of the outer peripheral wall is connected with the second wall surface (502) in a sealing mode, a first groove (601) is formed among the axial upper part of the outer peripheral wall, the step surface (503) and the first wall surface (501), a first oil discharge hole (701) is formed at the air outlet end, one end of the first oil discharge hole (701) is communicated with the first groove (601), and the other end of the first oil discharge hole (701) is communicated with the second oil discharge flow path; the first oil discharge flow path includes the first groove (601) and the first oil discharge hole (701).

8. The compressor front cover assembly according to claim 7, wherein an inner wall of the discharge chamber (101) is formed with a second groove (602), one end of the second groove (602) communicates with the first discharge hole (701), and the other end communicates with the communication hole (301); the second oil drain flow path includes the second groove (602).

9. The compressor front cover assembly according to claim 6, characterized in that the oil distribution cover (4) comprises an annular block (401), the outer peripheral wall of the annular block (401) is connected with the inner wall of the air outlet end in a sealing mode, an oil receiving ring (8) is arranged below the annular block (401), the outer peripheral wall surface of the oil receiving ring (8) is attached to the inner wall surface of the oil distribution pipe (2), an oil receiving groove (801) with an upward opening is formed in the oil receiving ring (8), and lubricating oil separated by the oil distribution cover (4) can flow into the oil receiving groove (801) along the inner wall of the annular block (401);

an oil drainage hole (802) is formed in the oil receiving groove (801), a second oil drainage hole (702) is formed in the oil distribution pipe (2), and the second oil drainage hole (702) is communicated with the oil drainage hole (802);

a third groove (603) is formed in the inner wall of the exhaust cavity (101), one end of the third groove (603) is communicated with the second oil drain hole (702), and the other end of the third groove (603) is communicated with the communication hole (301); the first oil drain flow path includes the oil receiving groove (801), the oil drain hole (802), and the second oil drain hole (702); the second oil drain flow path includes the third groove (603).

10. A compressor comprising a compressor front cover assembly as claimed in any one of claims 1 to 9.

11. The compressor of claim 10, wherein the compressor is a scroll compressor, the scroll compressor comprises a fixed disc (9), the fixed disc (9) is formed with a first mating surface, the front cover (1) is formed with a second mating surface, and the first mating surface and the second mating surface are in relatively sealed connection;

the first matching surface is concavely provided with an oil storage groove (901), the oil storage cavity (104) extends to the second matching surface towards the static disc (9), and the oil storage cavity (104) is communicated with the oil storage groove (901).

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