CN115681145A - Quiet dish subassembly, compressor and air conditioner - Google Patents

Abstract

The invention relates to the field of compressors, in particular to a static disc assembly, a compressor and an air conditioner; according to the static disc assembly provided by the invention, a translational cavity is formed between two adjacent circles of static scroll wrap teeth; the chassis is provided with a first air supplement hole and a second air supplement hole which penetrate through the chassis, and when the pressure outside the inlet hole is greater than the pressure in the first translational cavity and less than the pressure in the second translational cavity, the air supplement device supplements air to the first translational cavity through the first air supplement hole; when the pressure outside the inlet hole is greater than the pressure in the first translational cavity and greater than the pressure in the second translational cavity, the air supplementing device supplements air to the first translational cavity and supplements air to the second translational cavity, so that the air supplementing quantity of the two translational cavities of the scroll compressor can be correspondingly adjusted along with the difference of the ratio of the exhaust pressure to the suction pressure.

Description

Quiet dish subassembly, compressor and air conditioner

Technical Field

The invention relates to the field of compressors, in particular to a static disc assembly, a compressor and an air conditioner.

Background

In a heat pump or air conditioning system of a compressor, when the exhaust pressure and the suction pressure wall of the compressor exceed critical values, the efficiency of the compressor is greatly reduced, particularly, the evaporation temperature is reduced along with the reduction of the ambient temperature, and under the condition that the condensation temperature or the condensation pressure is not changed, the exhaust-to-suction compression ratio of the compressor is increased and exceeds the critical value of the normal operation of a common compression system, so that the efficiency and the reliability of the compressor are rapidly reduced; in addition, when the air supply device works in a low-temperature environment, the evaporation temperature of the system is reduced, the air suction mass flow of the compressor is reduced, the heating capacity is reduced, the heating performance coefficient of the system is reduced, the air supply amount of the conventional air supply device cannot be adjusted along with the change of the pressure ratio of the compressor, and the compressor cannot achieve high working efficiency.

The required gas supplementing amount of the scroll compressor under different pressure ratios is different, when the scroll compressor is in a small pressure ratio, less gas needs to be supplemented, and when the scroll compressor is in a large pressure ratio, more gas needs to be supplemented.

How to adjust the air supplement amount of the scroll compressor according to the different pressure ratios of the scroll compressor is a technical problem to be solved at present.

Disclosure of Invention

In order to enable air compensation quantities of two translation cavities of a scroll compressor to be correspondingly adjusted along with different ratios of exhaust pressure and suction pressure, a static disc assembly, a compressor and an air conditioner are provided.

In a first aspect, the invention provides a fixed disk assembly, which comprises a chassis and a plurality of circles of fixed scroll wraps arranged on the chassis, wherein a translational cavity is formed between every two adjacent circles of fixed scroll wraps, the translational cavity comprises a first translational cavity and a second translational cavity, and when a corresponding compressor works, the pressure of fluid in the first translational cavity is smaller than that of fluid in the second translational cavity;

a first air supplement hole communicated with the first translational cavity and a second air supplement hole communicated with the second translational cavity are formed in the base plate; the air supply device comprises an inlet hole; when the pressure outside the inlet hole is larger than the pressure in the first translational cavity and smaller than the pressure in the second translational cavity, the air supplementing device supplements air to the first translational cavity through the first air supplementing hole; when the pressure outside the inlet hole is larger than the pressure in the second translational cavity, the air supplementing device supplements air to the first translational cavity through the first air supplementing hole and supplements air to the second translational cavity through the second air supplementing hole.

Preferably, the air supply device comprises a shell, and the shell comprises the inlet hole and a first outlet hole and a second outlet hole which are formed in the shell; the shell is internally provided with a partition board, the partition board divides an inner cavity of the shell into a first cavity and a second cavity, and a communication hole for communicating the first cavity with the second cavity is formed in the partition board.

Preferably, a first blocking block and a first pressure spring are arranged in the first chamber, one end of the first pressure spring is connected to the first blocking block, the other end of the first pressure spring is connected to the inner wall of the first chamber, and the first pressure spring has an acting force which enables the first blocking block to move towards the inlet hole; the second cavity is internally provided with a second plugging block and a second pressure spring, one end of the second pressure spring is connected to the second plugging block, the other end of the second pressure spring is connected to the inner wall of the second cavity, and the second pressure spring has an acting force which enables the second plugging block to move towards the second outlet.

Preferably, the stationary disc is formed with a high pressure exhaust port, and the opening degree of the inlet hole is increased as the pressure of the gas exhausted from the high pressure exhaust port is increased; the opening degree of the communication hole becomes larger as the pressure of the gas discharged from the high-pressure gas discharge port increases.

Preferably, the inner surface of the inlet hole is a first conical surface a, the first blocking block is formed with a first conical surface B, the small end of the first conical surface a is opposite to the large end of the first conical surface B, and the axis of the first conical surface a is coaxial with the axis of the first conical surface B;

the inner surface of the communicating hole is a second conical surface A, the second blocking block is provided with a second conical surface B, the small end of the second conical surface A is opposite to the large end of the second conical surface B, and the axis of the second conical surface A is coaxial with the axis of the second conical surface B.

Preferably, the vertex angle of the first conical surface a is the same as the vertex angle of the first conical surface B; the vertex angle of the second conical surface A is the same as that of the second conical surface B.

Preferably, the first blocking block is a first blocking plate, one plate surface of the first blocking plate is a first sealing surface, the first blocking plate moves towards the first outlet hole and can block the first outlet hole through the first sealing surface, one end of the first pressure spring is connected to the first blocking plate, and the other end of the first pressure spring is connected to the inner wall of the first chamber;

the second plugging block is a second plugging plate, one plate surface of the second plugging plate is a second sealing surface, the second plugging plate moves towards the communicating hole and can plug the communicating hole through the second sealing surface, one end of a second pressure spring is connected to the second plugging plate, and the other end of the second pressure spring is connected to the inner wall of the second chamber.

Preferably, the movable disk used for meshing with the fixed disk comprises movable scroll wraps, the movable scroll wraps are positioned in the translational cavity and are matched with the fixed scroll wraps 102 to form a first compression cavity and a second compression cavity, and the translational cavity comprises the first compression cavity and the second compression cavity; the first compression cavity and the second compression cavity in the first translational cavity can be alternately communicated with the first air supplement hole, and the second air supplement hole can be alternately communicated with the first compression cavity and the second compression cavity in the second translational cavity.

Preferably, the first air supplement hole is located in the radial middle of the first translation cavity, and the second air supplement hole is located in the radial middle of the second translation cavity.

In a second aspect, the invention also provides a scroll compressor comprising the static disc assembly.

The invention also provides an air conditioner comprising the scroll compressor.

According to the invention, the first translational cavity of the static disc is provided with the first air supplement hole, the second translational cavity is provided with the second air supplement hole, when the compressor is in a low pressure ratio, the air supplement device automatically supplements air to the first translational cavity, and at the moment, the compression efficiency of the compressor can be improved only by less intermediate gas; when the compressor is in a high pressure ratio, the air supplementing device automatically supplements air to the first translational cavity and the second translational cavity at the same time, so that the air supplementing speed is increased, and the air supplementing efficiency of the compressor is improved.

Drawings

FIG. 1 is a cross-sectional view of a front cover assembly without a supplemental gas in accordance with an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the front cover assembly at low pressure ratio in accordance with an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a front cover assembly at high pressure ratio in accordance with an embodiment of the present invention;

FIG. 4 is a schematic view of the orbiting and non-orbiting scroll wraps of an embodiment of the present invention in their mutual connotation;

FIG. 5 is a schematic view of a gas supply device according to an embodiment of the present invention;

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

The reference numerals are represented as:

1. a stationary disc; 2. a housing; 101. a chassis; 102. a non-orbiting scroll wrap; 1011. a first air supply hole; 1012. a second air supply hole; 201. a first exit orifice; 202. a second exit orifice; 203. entering a hole; 3. a partition plate; 301. a communicating hole; 401. a first chamber; 402. a second chamber; 501. a first plugging block; 502. a first pressure spring; 601. a second plugging block; 602. a second pressure spring; 1021. a first translational cavity; 1022. a second translational cavity; 7. an orbiting scroll wrap; 701-a first compression chamber; 702-a second chamber.

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 invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "the plural" typically includes at least two, but does not exclude the presence of at least one.

It should be understood that the term "and/or" as used herein is merely a relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship; the terms "first" and "second" are used merely to distinguish 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 interpreted in a certain meaning, not an absolute positional relationship, in combination with the actual use condition or the specific orientation described above.

It should also be 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 phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in articles of commerce or systems including such elements.

The invention relates to the field of compressors, in particular to a static disc assembly, a compressor and an air conditioner; in a heat pump or an air-conditioning system of a compressor, when the exhaust pressure and the suction pressure wall of the compressor exceed critical values, the efficiency of the compressor is greatly reduced, particularly, the evaporation temperature is reduced along with the reduction of the ambient temperature, the exhaust and suction compression ratio of the compressor is increased under the condition that the condensation temperature or the condensation pressure is not changed, the critical value of the normal operation of a common compression system is exceeded, and the efficiency and the reliability of the compressor are rapidly reduced; in addition, when the air conditioner works in a low-temperature environment, the evaporation temperature of the system is reduced, the suction mass flow of the compressor is reduced, the heating capacity is reduced, and the heating performance coefficient of the system is reduced. In order to solve the technical problems, a static disc assembly, a compressor and an air conditioner are provided.

In a first aspect, as shown in fig. 1 to 6, the present invention provides a fixed disk assembly, which includes a base plate 101 and a plurality of circles of non-orbiting scroll wraps 102 disposed on the base plate 101, a translational cavity is formed between two adjacent circles of non-orbiting scroll wraps 102, the translational cavity includes a first translational cavity 1021 and a second translational cavity 1022, and when a corresponding compressor operates, a pressure of a fluid in the first translational cavity 1021 is less than a pressure of a fluid in the second translational cavity 1022; a first air supplement hole 1011 communicated with the first translational cavity 1021 and a second air supplement hole 1012 communicated with the second translational cavity 1022 are formed in the chassis 101; the air supply device is also included, and comprises an inlet 203; when the pressure outside the inlet 203 is greater than the pressure in the first translational cavity 1021 and less than the pressure in the second translational cavity 1022, the air supplement device supplements air to the first translational cavity 1021 through the first air supplement hole 1011; when the pressure outside the inlet 203 is higher than the pressure inside the second translational cavity 1022, the air supplement device supplements air to the first translational cavity 1021 through the first air supplement hole 1011 and supplements air to the second translational cavity 1022 through the second air supplement hole 1012.

By arranging the first air supplement hole 1011 in the first translation cavity 1021 of the static disc 1 and the second air supplement hole 1012 in the second translation cavity 1022, when the compressor is in a low pressure ratio, the air supplement device automatically supplements air to the first translation cavity 1021, and at the moment, the compression efficiency of the compressor can be improved only by less intermediate gas; when the compressor is in a high pressure ratio, the air supply device automatically supplies air to the first translational cavity 1021 and the second translational cavity 1022 at the same time, so that the air supply speed is increased, and the air supply efficiency of the compressor is improved.

Generally, when it is desired to replenish the gas, an

As shown in fig. 2, this pressure ratio range is generally referred to as a small pressure ratio; at this time, the pressure of the intermediate gas is greater than the pressure in the first translational cavity 1021 and less than the pressure in the second translational cavity 1022; the middle gas enters the gas supplementing device from the inlet hole 203 and is supplemented with gas to the first translational cavity 1021 through the first outlet hole 201, at this time, the inlet hole 203 of the second outlet hole 202 is disconnected from the second outlet hole 202, and the second translational cavity 1022 is not supplemented with gas; when the pressure ratio is small, only the first translation cavity 1021 with smaller pressure close to the outer side is supplied with air, so that not only can air be effectively supplemented, but also excessive middle air is prevented from being consumed; the inlet 203 is disconnected from the second outlet 202, so that the situation that the higher pressure in the second translational cavity 1022 of the static disc 1 of the compression cavity is greater than the pressure of the inlet 203, and the gas with the higher pressure in the compression cavity flows back to enter the gas supplementing device through the second outlet 202 can be avoided;

when it is necessary to replenish the air, an

As shown in fig. 3, this pressure ratio range is generally referred to as a high pressure ratio, and the intermediate gas pressure is greater than the pressure in the first translational cavity 1021 and greater than the pressure in the second translational cavity 1022; the middle gas enters the gas supplementing device from the inlet hole 203, the inlet hole 203 supplements gas to the first translational cavity 1021 through the first outlet hole 201, at the moment, the inlet hole 203 is also communicated with the second gas supplementing port, the inlet hole 203 supplements gas to the second translational cavity 1022 through the second gas supplementing hole 1012, and the gas supplementing device supplements gas to the compression cavity through the first outlet hole 201 and the second outlet hole 202, so that the gas supplementing efficiency is effectively improved, and the working efficiency of the compressor is further improved; wherein P1 is the gas pressure at the gas inlet, and P2 is the gas pressure at the gas outlet; of course, the pressure ratio range can be adjusted according to the actual working environment and the actual working condition of the compressor, so that the compressor is in an efficient working state.

Preferably, as shown in fig. 4, the movable disk for meshing with the fixed disk 1 includes a movable scroll wrap 7, the movable disk includes a movable scroll wrap 7, the movable scroll wrap 7 is located in a translational cavity and cooperates with the fixed scroll wrap 102 to form a first compression cavity 701 and a second compression cavity 702, and the translational cavity includes a first compression cavity 701 and a second compression cavity 702; the first compression chamber 701 and the second compression chamber 702 in the first translational chamber 1021 can alternately communicate with the first gas supplementing hole 1011, and the second gas supplementing hole 1012 can alternately communicate with the first compression chamber 701 and the second compression chamber 702 in the second translational chamber 1022.

Therefore, when the movable disc moves, the movable scroll wrap 7 of the movable disc can periodically communicate with the first compression cavity 701 and the second compression cavity 702 when moving in the translational cavity; the time length that the gas supply hole communicates with first compression chamber 701, second compression chamber 702 is the same, and then make the tonifying qi volume that first translation chamber 1021 and second translation chamber 1022 obtained the same, make pressure and the flow of moving the spiral tooth both sides the same, further reduced the running resistance of driving disk, not only reduced the noise and the vibrations of driving disk operation, made static 1 exhaust gas pressure and flow more even moreover, effectual improvement compressor work efficiency.

Preferably, as shown in fig. 5, the air supplement device comprises a housing 2, the housing 2 comprises an inlet hole 203 and a first outlet hole 201 and a second outlet hole 202 formed on the housing 2; a partition plate 3 is arranged in the housing 2, the partition plate 3 divides the inner cavity of the housing 2 into a first chamber 401 and a second chamber 402, and a communication hole 301 for communicating the first chamber 401 and the second chamber 402 is formed in the partition plate 3.

The partition 3 divides the inner cavity of the housing 2 into a first chamber 401 and a second chamber 402, when air is to be supplied, and

when the pressure is low, as shown in fig. 2, at this time, the inlet 203 is opened, the communication hole 301 is closed, the first chamber 401 and the second chamber 402 are disconnected, on one hand, the gas entering the gas supplementing device from the inlet 203 can only enter the first chamber 401 first and enter the compression chamber from the first outlet 201, on the other hand, because the gas supplementing pressure is greater than the pressure in the first translation chamber 1021, the gas with higher pressure entering the first chamber 401 has a certain flow rate, and if the gas with a certain flow rate directly enters the first translation chamber 1021, the gas impacts the static scroll teeth and the dynamic scroll teeth, so that abnormal vibration and noise are generated when the movable disc operates, the sealing performance is reduced, and the service life is reduced;the middle gas with a certain flow rate enters the first chamber 401, the pressure of the middle gas in the inlet 203 in the first chamber 401 is kept stable, the flow rate is reduced, and the gas with a certain pressure and a low flow rate enters the first translation cavity 1021, so that the pressure and the flow of the compression cavity can be supplemented, and the adverse effect of the high flow rate of air supplement on the work of the compression cavity is avoided;

when it is necessary to replenish the air, an

In time, as shown in fig. 3, the gas is in a high pressure ratio state at this time, and a larger flow rate of gas needs to be supplemented; because the pressure in the second translational cavity 1022 of the first outlet hole 201 of the second outlet hole 202 is greater than the pressure in the first translational cavity 1021, the collision and vibration between the middle gas entering the second translational cavity 1022 through the gas supplementing hole of the second outlet hole 202 and the original gas in the second compression cavity 702 are greater, and the flow rate of the gas entering the compression cavity through the second outlet hole 202 needs to be further reduced; the pressure of the intermediate gas is greater than the pressure in the first translational cavity 1021 and greater than the pressure in the second translational cavity 1022, under the action of the pressure of the intermediate gas, the inlet 203 is opened, the communication hole 301 is opened, the gas with larger flow rate, pressure and flow rate enters the first chamber 401 first and decelerates in a certain first chamber 401, part of the gas enters the first translational cavity 1021 from the first outlet 201, the other part of the gas enters the second chamber 402 from the communication hole 301 and decelerates again in the second chamber 402, the decelerated gas in the second chamber 402 enters the second translational cavity 1022 from the second outlet 202 gas supplementing hole, and at this time, the flow rate of the gas entering the second translational cavity 1022 from the second outlet 202 is lower.

Preferably, as shown in fig. 5, a first blocking block 501 and a first pressure spring 502 are arranged in the first chamber 401, one end of the first pressure spring 502 is connected to the first blocking block, the other end of the first pressure spring is connected to the inner wall of the first chamber 401, and the first pressure spring 502 has an acting force which makes the first blocking block 501 move towards the inlet 203; a second blocking block 601 and a second pressure spring 602 are arranged in the second chamber 402, one end of the second pressure spring 602 is connected to the second blocking block, the other end of the second pressure spring is connected to the inner wall of the second chamber 402, and the second pressure spring 602 has an acting force which enables the second blocking block 601 to move towards the second outlet 202.

When it is necessary to replenish the air, an

When the gas is input into the gas supplementing device in the middle of the inlet 203, as shown in fig. 2, the pressure of the gas input device is greater than the sum of the pressure in the first translation cavity 1021 of the first chamber 401 and the elastic force of the first pressure spring 502, the gas in the middle of the inlet 203 pushes the first blocking block 501 to move, and the first blocking block 501 opens the inlet 203; the pressure of the gas entering the first chamber 401 is smaller than the sum of the pressure in the translational cavity of the second chamber 402 and the elastic force of the second pressure spring 602, and the second blocking block 601 seals the communicating hole 301; when it is necessary to replenish the air, an

When the pressure of the inlet 203 of the intermediate air device input air supplementing device is larger than the sum of the pressure in the translational cavity of the first chamber 401 and the elastic force of the first pressure spring 502, as shown in fig. 3, the intermediate air in the inlet 203 pushes the first blocking block 501 to move, and the first blocking block 501 opens the inlet 203; the pressure of the gas entering the first chamber 401 is greater than the sum of the pressure in the translational cavity of the second chamber 402 and the elastic force of the second pressure spring 602, the gas entering the first chamber 401 pushes the second blocking block 601 to move, and the communication hole 301 is opened to allow the first blocking block 501 to enter the hole 203; the second block 601 opens the communication hole 301.

The elastic coefficients of the first compressed spring 502 and the second compressed spring 602 can be adjusted according to specific compressor requirements, when the first blocking block 501 and the second blocking block 601 need to move rapidly, a compressed spring with a higher elastic coefficient can be selected, and when the influence of the elasticity of the compressed springs on the opening of the blocking blocks is reduced, a spring with a smaller elastic coefficient can be selected.

Preferably, the stationary plate is formed with a high pressure exhaust port, and the opening degree of the inlet hole 203 is increased as the pressure of the gas exhausted from the high pressure exhaust port is increased; the opening degree of the communication hole 301 increases as the pressure of the gas discharged from the high-pressure gas discharge port increases.

Because the gas entering the first chamber 401 from the inlet 203 comes from the intermediate gas of the compressor, that is, after the gas discharged from the high-pressure gas outlet of the static disc 1 passes through a condenser and other components, a part of the gas is introduced to supplement the gas to the compressor through the inlet 203; the pressure of the gas entering the first chamber 401 from the inlet 203 and the pressure discharged from the gas outlet are in positive correlation, when the pressure of the gas discharged from the gas outlet is increased, the pressure ratio of the compressor is increased, and then the gas with larger flow and higher pressure needs to be supplemented to keep the compressor at higher working efficiency; thus, the pressure of the gas entering the first chamber 401 from the inlet hole 203 is correspondingly increased, and the opening degree of the inlet hole 203 is increased along with the increase of the make-up gas pressure, so that the flow rate of the gas entering the first chamber 401 is increased, and further, the flow rate and the pressure of the gas entering the first translational cavity 1021 from the first outlet hole 201 are increased; similarly, the larger the pressure of the gas introduced into and discharged from the gas outlet, the larger the opening of the communication hole 301, the larger the flow rate and pressure of the gas introduced into the second chamber 402, and the larger the flow rate and pressure of the gas introduced into the second translational chamber 1022.

Preferably, the inner surface of the inlet hole 203 is a first conical surface a, the first blocking block 501 is formed with a first conical surface B, the small end of the first conical surface a is opposite to the large end of the first conical surface B, and the axis of the first conical surface a is coaxial with the axis of the first conical surface B; the inner surface of the communication hole 301 is a second conical surface a, the second blocking block 601 is formed with a second conical surface B, the small end of the second conical surface a is opposite to the large end of the second conical surface B, and the axis of the second conical surface a is coaxial with the axis of the second conical surface B.

The intermediate gas entering the first chamber 401 through the inlet hole 203 pushes the first blocking block 501 to move towards the inside of the first chamber 401, the larger the pressure of the gas entering the first chamber 401 is, the larger the distance the first blocking block 501 moves is, the larger the interval between the first blocking block and the inner surface of the inlet hole 203 is, the larger the flow rate of the gas entering the first chamber 401 is, and the larger the flow rate of the gas entering the first translational cavity 1021 through the first outlet hole 201 is.

Preferably, the vertex angle of the first conical surface a is the same as the vertex angle of the first conical surface B; the vertex angle of the second conical surface a is the same as the vertex angle of the second conical surface B.

The sealing performance is improved by forming a surface seal between the first conical surface B and the first conical surface A and forming a surface seal between the second conical surface B and the second conical surface A.

Another way of sealing the inlet hole 203 and the communication hole 301 is, preferably, that the first blocking block 501 is a first blocking plate, one plate surface of the first blocking plate is a first sealing surface, the first blocking plate moves towards the first outlet hole 201 and can block the first outlet hole 201 through the first sealing surface, one end of the first pressure spring 502 is connected to the first blocking plate, and the other end of the first pressure spring is connected to the inner wall of the first chamber 401; the second plugging block 601 is a second plugging plate, a plate surface of the second plugging plate is a second sealing surface, the second plugging plate moves towards the second outlet 202 and can plug the second outlet 202 through the second sealing surface, one end of a second pressure spring 602 is connected to the second plugging plate, and the other end of the second pressure spring is connected to the inner wall of the second chamber 402.

Compared with the surface sealing formed by a conical surface and the existing ball sealing, the first blocking plate and the second blocking plate are used for sealing the inlet hole 203 and the communicating hole 301, so that the volume and the weight of the blocking block are reduced, and the blocking block has smaller inertia; when the first pressure spring 502 and the second pressure spring 602 drive the first blocking plate and the second blocking plate to move, the first blocking plate and the second blocking plate can be more sensitively used for sealing the inlet hole 203 and the communicating hole 301, so that gas leakage is effectively reduced, the inlet hole 203 and the communicating hole 301 can be more quickly opened during gas supplement, and gas supplement is more timely carried out; at the same time, the smaller volume facilitates reducing the volume of the first and second chambers 401, 402, reducing the clearance volume.

The scroll compressor provided by the invention comprises the static disc 1 assembly as shown in fig. 6, and has the advantages of small vibration, low noise and high working efficiency.

An air conditioner comprises the scroll compressor; when the air conditioner works, the refrigerating efficiency and the heating efficiency are high, particularly when the air conditioner heats, the working efficiency of the compressor is high, the heating effect of the air conditioner is high, meanwhile, the running noise of the air conditioner is low, and the vibration is low.

The working process of the invention is described below by taking the air conditioner as an example for heating; for convenience of description, the compression chamber communicated with the first gas supplementing hole 1011 is the first compression chamber 701, and the compression chamber communicated with the second gas supplementing hole 1012 is the second compression chamber 702; along with the movement of the movable disc, the first compression cavity 701 and the second compression cavity 702 are positioned at the outer side or the inner side of the vortex disc of the movable disc at the same time, and the work flow is the same no matter which side;

when air is required to be supplemented, the high-temperature and high-pressure gas discharged from the static disc 1 passes through the middle gas of components such as a condenser and the like and enters the inlet hole 203

When the air is supplied to the first chamber 402, the pressure outside the first blocking plate is larger than the sum of the acting force of the first pressure spring 502 and the pressure of the translational chamber of the first compression chamber 701, the pressure in the first chamber 401 is smaller than the sum of the pressures in the second pressure spring 602 and the second compression chamber 702, the first blocking plate is far away from the inlet hole 203, the inlet hole 203 is opened, the second blocking plate blocks the communicating hole 301, and the air is not supplied to the second chamber 402; the intermediate gas enters the first chamber 401, decelerates in the first chamber 401, and then enters the first translational cavity 1021 through the first gas supplementing hole 1011, thereby completing gas supplementation to the first translational cavity 1021. When the second compression spring 602 and the second chamber 402 of the communicating hole 301 are in translational motion of the movable disc, the first air supplement hole 1011 is periodically and alternately communicated with the first chamber 401, and the middle air supplements air for the first compression chamber 701 and the second compression chamber 702 in the first translational chamber 1021.

When the temperature is higher than the set temperature

When the air is supplied to the first translation cavity 1021, the pressure outside the first blocking plate is larger than the sum of the acting force of the first pressure spring 502 and the pressure in the first translation cavity 1021, the pressure in the first cavity 401 is larger than the sum of the pressures in the second pressure spring 602 and the second translation cavity 1022, the first blocking plate is far away from the inlet 203, the inlet 203 is opened, intermediate air enters the first cavity 401 and enters the first translation cavity 1021 after being decelerated in the first cavity 401, and then the air is supplied to the first translation cavity 1021; a first chamber401, a second compression spring 602, a second compression cavity 702 and a second blocking plate open a communicating hole 301, intermediate gas enters a second chamber 402 through the communicating hole 301, is decelerated in the second chamber 402 and then enters a second translational cavity 1022 through a second gas supplementing hole 1012, and the second compression cavity 702 supplements gas for the second translational cavity 1022; the larger the pressure ratio is, the larger the pressure of the intermediate gas is, the larger the flow rate of the gas entering the first chamber 401 is, when the pressure ratio is high, the gas is firstly decelerated in the first chamber 401 and enters the first compression chamber 701, and a part of the gas enters the second translation chamber 1022 after being decelerated by the second chamber 402, so that the disturbance of the supplemented gas to the gas in the first translation chamber 1021 and the second translation chamber 1022 is reduced, the pressure and the acting force of the movable scroll teeth of the movable disc during operation are stable, the impact of the gas to the movable disc and the static disc 1 is avoided, and the vibration and the noise are reduced.

For different compressors, the relative pressure ratio value can be adjusted to adjust the air supplement amount, and the sizes and the number of the first air supplement port and the second air supplement port can be adjusted to adjust the speed and the flow rate of the gas entering the compression cavity.

In order to better supplement air to the compressor, the number of air supplement ports can be increased, and corresponding different air supplement ports correspond to the translation cavities with different pressures, so that different pressure ratios are realized, different compression cavities are supplemented with air, and the air supplement efficiency is improved.

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, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and those improvements and modifications should be also considered as the protection scope of the present invention.

Claims (11)

1. A static disc assembly is characterized by comprising a base disc (101) and a plurality of circles of static scroll wraps (102) arranged on the base disc (101), wherein a translation cavity is formed between every two adjacent circles of static scroll wraps (102), the translation cavity comprises a first translation cavity (1021) and a second translation cavity (1022), and when a corresponding compressor works, the pressure of fluid in the first translation cavity (1021) is smaller than that of fluid in the second translation cavity (1022);

a first air supplement hole (1011) communicated with the first translational cavity (1021) and a second air supplement hole (1012) communicated with the second translational cavity (1022) are formed in the chassis (101); the air supply device is characterized by also comprising an air supply device, wherein the air supply device comprises an inlet hole (203); when the pressure outside the inlet hole (203) is greater than the pressure in the first translational cavity (1021) and less than the pressure in the second translational cavity (1022), the air supplement device supplements air to the first translational cavity (1021) through the first air supplement hole (1011); when the pressure outside the inlet (203) is higher than the pressure in the second translational cavity (1022), the air supplement device supplements air to the first translational cavity (1021) through the first air supplement hole (1011) and supplements air to the second translational cavity (1022) through the second air supplement hole (1012).

2. The static disc assembly according to claim 1, characterized in that said air make-up means comprise a casing (2), said casing (2) comprising said inlet hole (203) and a first outlet hole (201) and a second outlet hole (202) made on said casing (2); the improved vacuum pump is characterized in that a partition plate (3) is arranged in the shell (2), the inner cavity of the shell (2) is divided into a first cavity (401) and a second cavity (402) by the partition plate (3), and a communication hole (301) for communicating the first cavity (401) with the second cavity (402) is formed in the partition plate (3).

3. The static disc assembly according to claim 2, characterized in that a first blocking block (501) and a first compression spring (502) are arranged in the first chamber (401), one end of the first compression spring (502) is connected to the first blocking block, the other end of the first compression spring is connected to the inner wall of the first chamber (401), and the first compression spring (502) has an acting force which enables the first blocking block (501) to move towards the inlet hole (203); a second blocking block (601) and a second pressure spring (602) are arranged in the second chamber (402), one end of the second pressure spring (602) is connected to the second blocking block, the other end of the second pressure spring is connected to the inner wall of the second chamber (402), and the second pressure spring (602) has an acting force which enables the second blocking block (601) to move towards the second outlet hole (202).

4. The stationary disc assembly according to claim 3, wherein the stationary disc is formed with a high pressure exhaust port, and the opening degree of the inlet hole (203) becomes larger as the pressure of the gas exhausted from the high pressure exhaust port increases; the opening degree of the communication hole (301) increases as the pressure of the gas discharged from the high-pressure gas discharge port increases.

5. The static disc assembly according to claim 4, characterized in that the inner surface of the inlet hole (203) is a first conical surface A, the first blocking block (501) is formed with a first conical surface B, the small end of the first conical surface A is opposite to the large end of the first conical surface B, and the axis of the first conical surface A is coaxial with the axis of the first conical surface B;

the inner surface of the communication hole (301) is a second conical surface A, a second conical surface B is formed on the second blocking block (601), the small end of the second conical surface A is opposite to the large end of the second conical surface B, and the axis of the second conical surface A is coaxial with the axis of the second conical surface B.

6. The static disc assembly as claimed in claim 5, wherein the apex angle of the first conical surface A is the same as the apex angle of the first conical surface B; the vertex angle of the second conical surface A is the same as that of the second conical surface B.

7. The static disc assembly according to claim 4, wherein the first plugging block (501) is a first plugging plate, one plate surface of the first plugging plate is a first sealing surface, the first plugging plate is movable towards the first outlet hole (201) to plug the first outlet hole (201) through the first sealing surface, one end of the first compression spring (502) is connected to the first plugging plate, and the other end is connected to the inner wall of the first chamber (401);

the second plugging block (601) is a second plugging plate, one plate surface of the second plugging plate is a second sealing surface, the second plugging plate faces towards the communicating hole (301) and can be plugged into the communicating hole (301) through the second sealing surface, one end of the second pressure spring (602) is connected onto the second plugging plate, and the other end of the second pressure spring is connected onto the inner wall of the second chamber (402).

8. The stationary disc assembly according to any one of claims 1-7, characterized in that the moving disc for engagement with the stationary disc (1) comprises a moving wrap (7), the moving wrap (7) being located within the translational cavity and cooperating with the non-orbiting wrap (102) to form a first compression cavity (701) and a second compression cavity (702), the translational cavity comprising the first compression cavity (701) and the second compression cavity (702); the first compression cavity (701) and the second compression cavity (702) in the first translation cavity (1021) can be alternately communicated with the first air supplement hole (1011), and the second air supplement hole (1012) can be alternately communicated with the first compression cavity (701) and the second compression cavity (702) in the second translation cavity (1022) and the second air supplement hole (1012).

9. The stationary disc assembly as recited in claim 8, wherein the first aeration hole (1011) is located at a radial middle of the first translational cavity (1021) and the second aeration hole (1012) is located at a radial middle of the second translational cavity (1022).

10. A scroll compressor comprising the static disc assembly of any one of claims 1 to 9.

11. An air conditioner characterized by comprising the scroll compressor of claim 9.

Images