An oil outlet control component, rotating machinery, compressor and air conditioner

Abstract

This invention relates to an oil discharge control component, rotating machinery, compressor, and air conditioner in the field of air conditioning technology. The oil discharge control component includes a housing, a control component, and a damping component. By designing the damping component, the control component has corresponding positional limitations in high-speed and low-speed rotation states. This allows the control component to close part of the oil hole group in high-speed rotation state, thereby reducing the amount of oil discharged by the compressor. In other words, the oil discharge of the compressor is cleverly controlled by the cooperation of the control component and the damping component, so that the oil discharge of the compressor is not affected when the compressor is running at low and medium frequencies, and the refrigerant mass flow rate and cooling capacity of the compressor are maintained accordingly. When the compressor is running at high frequencies, the oil discharge is reduced, which can maintain the oil lubrication of the compressor pump body components and reduce the amount of refrigerant oil circulating in the air conditioning system. The oil film covering the inner wall of the air conditioning system pipes is also reduced, effectively improving the heat exchange efficiency of the air conditioning system.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more particularly to an oil outlet control component, a rotating mechanism, a compressor, and an air conditioner. Background Technology

[0002] In air conditioning technology, as energy conservation and emission reduction requirements become increasingly stringent, the energy efficiency requirements for air conditioners are also increasing. Under low-temperature heating conditions, the energy efficiency of air conditioners decreases significantly, resulting in a lower APF (Active Power Factor) of the air conditioning system. The reason for this is that the compressor in the air conditioner discharges a large amount of oil under low-temperature heating conditions. This large amount of oil discharge leads to the formation of an oil film, which reduces the heat exchange efficiency of the air conditioning system, thereby reducing the energy efficiency of the air conditioning system. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the technical problem that the large amount of oil discharged by the compressor under the low temperature heating condition of the air conditioner leads to the reduction of the energy efficiency of the air conditioning system, and to provide an oil discharge control component, a compressor and an air conditioner.

[0004] This invention aims to provide an oil discharge control assembly, disposed on the rotor of rotating machinery, the oil discharge control assembly comprising:

[0005] The housing has a cavity and two parallel first walls and second walls. The first wall has a plurality of first through holes spaced apart around the rotor axis, and the second wall has a plurality of second through holes spaced apart around the rotor axis. The plurality of first through holes and the plurality of second through holes correspond one-to-one to form a plurality of oil hole groups.

[0006] A control component is disposed within the cavity and has a first plate surface that is opposite to and parallel to the first wall and a second plate surface that is opposite to and parallel to the second wall. The control component is provided with a plurality of through holes penetrating the first plate surface and the second plate surface. The plurality of through holes are distributed at intervals along the circumference of the rotor and can communicate with different oil hole groups as the rotation angle of the control component changes.

[0007] The control component is connected to the rotor drive, and the control component can rotate relative to the housing within a preset angle range;

[0008] A damping component capable of deforming in the relative rotational direction between the control component and the housing is provided;

[0009] The housing and the control unit are configured such that, under different rotor speeds and the action of the damping assembly, the plurality of oil hole groups and the plurality of through holes form a flow of oil with different volumes.

[0010] In some embodiments, the plurality of oil hole groups and the through holes are located on a circle with the same radius; the number of the plurality of first through holes, the plurality of second through holes, and the plurality of oil hole groups are all n;

[0011] The plurality of through holes includes m small through holes and one large through hole. The circumferential length of the large through hole is set to always be able to conduct the circumferentially arranged group of nm oil holes in sequence during the rotation of the control component, where n > m and nm ≥ 2.

[0012] The rotor drives the control component at a first speed state. The control component is limited to a first position by the damping component. The m small through holes are one-to-one with the m oil hole groups and are connected. The large through hole is one-to-one with the nm oil hole groups and is connected. All n oil hole groups are in an open state.

[0013] The rotor drives the control component at a second speed. The control component is limited to a second position by the damping component. The m small through holes are staggered from the m groups of oil holes. The large through holes are opposite to and connected to the nm groups of oil holes. The m groups of oil holes are all in a closed state, and the nm groups of oil holes are all in an open state.

[0014] In some embodiments, n=6, m=3, the rotor drives the control component at a first speed state, the three small through holes correspond one-to-one with three of the oil hole groups, the large through hole is simultaneously connected to the other three oil hole groups, and all six oil hole groups are in an open state;

[0015] When the rotor drives the control component at a second rotational speed, the three small through holes are staggered with three of the oil hole groups, and the three oil hole groups are all in a closed state. The large through hole corresponds to all three other oil hole groups, and the other three oil hole groups are all in an open state.

[0016] In some embodiments, a guide structure is provided between the housing and the control element, allowing both to rotate within the preset angle range.

[0017] In some embodiments, the guide structure includes a column and a limiting hole;

[0018] One end of the column is connected to the first wall and / or the second wall, the limiting hole is provided on the control component and corresponds to the column, and the other end of the column extends into the limiting hole and can slide relative to the limiting hole;

[0019] The limiting hole has a first limiting end and a second limiting end in the relative sliding direction with the column. When the rotor drives the control component at a first speed, the column is located at the first limiting end and the control component is in the first position. When the rotor drives the control component at a second speed, the column is located at the second limiting end and the control component is in the second position.

[0020] In some embodiments, both the first wall and the second wall are circular walls;

[0021] The housing also includes a peripheral sidewall connected between the first wall and the second wall, the peripheral sidewall being an arc surface;

[0022] The control component is a nearly circular plate, and its circumferential sidewalls include a first flat arc segment and a second flat arc segment arranged opposite to each other. The first flat arc segment and the second flat arc segment are symmetrically arranged about the central axis of the control component.

[0023] The damping assembly includes a damping block and a damping elastic element. A first mounting cavity is formed between the first flat arc segment of the control element and the peripheral sidewall of the housing. A second mounting cavity is formed between the second flat arc segment of the control element and the peripheral sidewall of the housing. The damping block is mounted in the first mounting cavity, and the damping elastic element is mounted in the second mounting cavity.

[0024] In some embodiments, the damping block includes a connecting surface located on one side of the damping block and a first damping surface and a second damping surface located on the other side of the damping block;

[0025] The connecting surface faces the peripheral sidewall of the housing and interacts with the peripheral sidewall of the housing. The first damping surface and the second damping surface face the control member and form a protrusion facing the control member between them. When the control member is driven by the rotor to a first speed state, the first flat arc segment of the control member abuts against the first damping surface and the control member is limited to the first position. When the control member is driven by the rotor to a second speed state, the first flat arc segment of the control member abuts against the second damping surface and the control member is limited to the second position.

[0026] The damping elastic element is connected to the peripheral sidewall and the control element at both ends respectively. When the control element is driven by the rotor to a first speed state, the damping elastic element has a first tensile force. When the control element is driven by the rotor to a second speed state, the damping elastic element has a second tensile force, and the second tensile force is greater than the first tensile force.

[0027] In some embodiments, the oil outlet control component is used for the motor rotor or compressor rotor.

[0028] The housing is configured as a baffle of the rotor, or the baffle of the rotor is configured as the housing.

[0029] In some embodiments, a rotating machine is provided, comprising:

[0030] The rotor and the aforementioned oil outlet control components.

[0031] In some embodiments, a compressor is provided, comprising:

[0032] Rotor and the aforementioned oil outlet control components;

[0033] The housing is disposed on one side wall of the rotor, the rotor has oil holes that are opposite to the oil hole group, the housing is provided with a secondary balance block that is close to the through hole, and the rotor is provided with a main balance block on the side wall opposite to the housing.

[0034] When the compressor is running at low frequency, the control component is restricted to the first position by the damping component, and all the oil hole groups are in the open state;

[0035] When the compressor is running at high frequency, the control element is restricted to the second position by the damping component, and part of the oil hole group is in a conductive state.

[0036] In some embodiments, the rotor includes a rotor baffle, and the housing and the cavity are constructed from the rotor baffle.

[0037] In some embodiments, an air conditioner is provided, comprising:

[0038] The aforementioned compressor.

[0039] The solution provided by this invention has the following advantages compared with the prior art:

[0040] By designing damping components to limit the position of the control components under high-speed and low-speed rotation, the control components can close part of the oil hole group to reduce the oil discharge of the compressor under high-speed rotation. In other words, the oil discharge of the compressor is cleverly controlled by the cooperation of the control components and damping components according to the compressor frequency conversion. This ensures that the oil discharge of the compressor is not affected when the compressor is running at low and medium frequencies, and the refrigerant mass flow rate and cooling capacity of the compressor are maintained accordingly. When the compressor is running at high frequencies, the oil discharge is reduced, which can maintain the oil lubrication of the compressor pump body components and reduce friction loss. At the same time, the amount of refrigeration oil participating in the circulation in the air conditioning system is reduced, and the oil film covering the inner wall of the air conditioning system pipes is reduced, which effectively improves the heat exchange efficiency of the air conditioning system and further improves the heating energy efficiency of the air conditioning system. The APF energy efficiency of the air conditioning system does not decrease. Attached Figure Description

[0041] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0042] Figure 1 This is one of the schematic diagrams of the control component in the first rotational speed state (with the cover removed) shown in the embodiment of the present invention;

[0043] Figure 2 This is one of the schematic diagrams of the control component in the second rotational speed state (with the cover removed) shown in the embodiment of the present invention;

[0044] Figure 3 This is a schematic diagram of the control component shown in an embodiment of the present invention;

[0045] Figure 4 This is illustrated in the embodiments of the present invention. Figure 3 Sectional view along the AA direction;

[0046] Figure 5 This is a schematic diagram of the housing shown in an embodiment of the present invention;

[0047] Figure 6 This is illustrated in the embodiments of the present invention. Figure 5 Sectional view along the BB direction;

[0048] Figure 7 This is a schematic diagram of the shell cover shown in an embodiment of the present invention;

[0049] Figure 8 This is illustrated in the embodiments of the present invention. Figure 7 Sectional view along the CC direction;

[0050] Figure 9 This is a schematic diagram of the overall housing shown in an embodiment of the present invention;

[0051] Figure 10 This is a schematic diagram of the rotor shown in an embodiment of the present invention;

[0052] Figure 11 This is a schematic diagram of the damping block shown in an embodiment of the present invention.

[0053] In the figure: 1-shell, 101-first wall, 102-second wall, 103-first through hole, 104-second through hole, 105-peripheral side wall, 2-cavity, 3-control component, 301-small through hole, 302-large through hole, 303-first flat arc segment, 304-second flat arc segment, 4-damping assembly, 401-damping block, 4011-first damping surface, 4012-second damping surface, 4031-protrusion, 402-damping elastic component, 501-first mounting cavity, 502-second mounting cavity, 6-limiting post, 7-limiting hole, 701-first limiting end, 702-second limiting end, 8-shaft hole, 9-shaft sleeve, 10-main balance block, 11-secondary balance block, 12-rotor.

[0054] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0055] In the description of this invention, it should be noted that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0056] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "contact," and "communication" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0057] Under low-temperature heating conditions, the energy efficiency of air conditioners decreases significantly, resulting in a lower APF (Advanced Performance Factor) of the air conditioning system. The reason for this is that the compressor in the air conditioner discharges a large amount of oil under low-temperature heating conditions. This large amount of oil discharge leads to the formation of an oil film, which reduces the heat exchange efficiency of the air conditioning system, thereby reducing the energy efficiency of the air conditioning system.

[0058] Based on this, the following embodiments are proposed.

[0059] Example 1:

[0060] This embodiment provides an oil outlet control component disposed on a rotor, the oil outlet control component comprising:

[0061] The housing 1 has a cavity 2. The housing 1 has two relatively parallel first walls 101 and second walls 102. The first wall 101 is provided with a plurality of first through holes 103 that are circumferentially spaced around the rotor axis. The second wall 102 is provided with a plurality of second through holes 104 that are circumferentially spaced around the rotor axis. The plurality of first through holes 103 and the plurality of second through holes 104 are axially corresponding to each other to form a plurality of oil hole groups.

[0062] The control component 3 is disposed in the cavity 2 and has a first plate surface opposite to the first wall 101 and a second plate surface opposite to the second wall 102. The control component 3 has a plurality of through holes penetrating the first plate surface and the second plate surface. The plurality of through holes are distributed at intervals along the circumference of the rotor and can communicate with different oil hole groups as the rotation angle of the control component 3 is different.

[0063] The control component 3 is connected to the rotor drive, and the control component 3 can rotate relative to the housing 1 within a preset angle range;

[0064] A damping component 4 is provided between the control component 3 and the housing 1, which can deform in the direction of relative rotation between the two.

[0065] The housing 1 and the control component 3 are configured such that, under the different rotational speeds of the rotor and the action of the damping component 4, the plurality of oil hole groups and the plurality of through holes form a flow of oil with different volumes.

[0066] In this embodiment, the oil discharge control component is used for the compressor. During the operation of the compressor, its rotor drives the control component 3 to rotate. During this process, the housing 1 rotates with the rotation of the control component 3. The housing 1 does not interfere with the rotor. The compressor in the air conditioner discharges a large amount of oil under low temperature heating conditions. The large amount of oil discharged by the compressor will lead to the formation of an oil film. The oil film generally covers the pipe wall of the air conditioning system, which reduces the heat exchange efficiency of the air conditioning system. Moreover, the oil discharged by the compressor is refrigeration oil, which to some extent carries away the heat of the air conditioning system, further reducing the heating energy efficiency of the air conditioning system.

[0067] Preferably, the housing 1 can be constructed as the rotor baffle in the compressor, or the rotor baffle in the compressor can be directly set as a cavity structure as the housing 1 in the oil discharge control assembly. This structure is simple, low in cost, and does not rely on an external control module, enabling the control component 3 to effectively control the oil discharge of the compressor.

[0068] The oil outlet control component in this embodiment, such as Figure 2As shown, the rotor drives the control component 3 in the second speed state, which is the high-frequency operation of the compressor. At this time, the rotor rotation speed is relatively high, which drives the control component 3 to rotate at a relatively high speed. In this state, the control component 3 is limited to the second position by the damping component 4, that is, the control component 3 drives the housing 1 to rotate in the second position. In this state, the oil hole group and the through hole are misaligned, that is, in the high-frequency operation state of the compressor, some of the multiple oil hole groups are in the open state, and the other part is in the closed state. That is, the amount of oil discharged by the compressor is reduced accordingly. The amount of oil discharged can maintain the lubrication effect of the compressor in high-frequency operation, reduce friction power consumption, and at the same time, the circulating refrigerant oil in the air conditioning system, that is, the compressor oil discharge, is reduced, reducing the formation of oil film, effectively improving the heat exchange efficiency of the air conditioning system, and further improving the heating energy efficiency of the air conditioning system.

[0069] like Figure 1 As shown, the rotor drives the control component 3 at a first speed state, which is when the compressor is operating at low or medium frequency. At this speed, the rotor's rotational speed is low, and consequently, the control component 3's rotational speed is also low. In this state, the control component 3 is limited to a first position by the damping assembly 4. That is, the control component 3 drives the housing 1 to rotate at this first position. In this state, the oil hole group and the through hole are opposite each other, and all oil hole groups are open. This means that when the compressor is operating at low or medium frequency, the oil hole group is open, maintaining a large oil discharge volume from the compressor, reducing the accumulation of refrigerant oil inside the compressor, and preventing a reduction in the effective mass flow rate of the refrigerant, thus avoiding a decrease in the compressor's cooling capacity. Those skilled in the art will understand that in an air conditioning system, the refrigerant and refrigerant together form a mixed fluid. Since the mass of the mixed fluid is constant, a decrease in refrigerant oil (compressor oil discharge volume) leads to an increase in refrigerant, and an increase in refrigerant oil leads to a decrease in refrigerant.

[0070] By designing the damping component 4 to limit the position of the control component 3 under high-speed and low-speed rotation, the control component 3 can close part of the oil hole group under high-speed rotation to reduce the oil discharge of the compressor. That is, through the cooperation of the control component 3 and the damping component 4, the oil discharge of the compressor is cleverly controlled according to the compressor frequency conversion. This ensures that the oil discharge of the compressor is not affected when the compressor is running at low and medium frequencies, and the refrigerant mass flow rate and cooling capacity of the compressor are maintained accordingly. When the compressor is running at high frequencies, the oil discharge is reduced, which can maintain the oil lubrication of the compressor pump body components and reduce friction loss. At the same time, the amount of refrigeration oil participating in the circulation in the air conditioning system is reduced, and the oil film covering the inner wall of the air conditioning system pipes is reduced, which effectively improves the heat exchange efficiency of the air conditioning system and further improves the heating energy efficiency of the air conditioning system. The APF energy efficiency of the air conditioning system does not decrease.

[0071] Optionally, in one implementation of this embodiment, such as Figure 1-8 As shown,

[0072] The plurality of oil hole groups and the through holes are located on a circle with the same radius; the number of the plurality of first through holes, the plurality of second through holes, and the plurality of oil hole groups are all n;

[0073] The plurality of through holes includes m through holes 301 and one through hole 302. The circumferential length of the through hole 302 is set to always be able to conduct the circumferentially arranged group of nm oil holes in sequence during the rotation of the control component, where n > m and nm ≥ 2.

[0074] The rotor drives the control component 3 at a first speed. The control component 3 is limited to a first position by the damping component 4. The m small through holes 301 are one-to-one with the m oil hole groups and are connected. The large through hole 302 is one-to-one with the nm oil hole groups and is connected. All n oil hole groups are in an open state.

[0075] The rotor drives the control component 3 at a second speed. The control component 3 is limited to a second position by the damping component 4. The m small through holes 301 are staggered with the m oil hole groups. The large through holes 302 are opposite to and connected to the nm oil hole groups. The m oil hole groups are all in a closed state, and the nm oil hole groups are all in an open state.

[0076] In this embodiment, taking n=6 and m=3 as an example, the oil discharge control component is used for the compressor. During the operation of the compressor, its rotor drives the control component 3 to rotate. During this process, the housing 1 rotates with the rotation of the control component 3. The housing 1 does not interfere with the rotor. The compressor in the air conditioner discharges a large amount of oil under low temperature heating conditions. The large amount of oil discharged by the compressor will lead to the formation of an oil film. The oil film generally covers the pipe wall of the air conditioning system, which reduces the heat exchange efficiency of the air conditioning system. Moreover, the oil discharged by the compressor is refrigeration oil, which to some extent carries away the heat of the air conditioning system, further reducing the heating energy efficiency of the air conditioning system.

[0077] Preferably, the housing 1 can be constructed as the motor rotor baffle in the compressor, or the motor rotor baffle in the compressor can be directly set as a cavity structure as the housing 1 in the oil discharge control component. This structure is simple, low in cost, and does not rely on an external control module, enabling the control component 3 to effectively control the oil discharge of the compressor.

[0078] The oil outlet control component in this embodiment, such as Figure 2As shown, the rotor drives the control component 3 in the second speed state, which is the high-frequency operation of the compressor. At this time, the rotor rotation speed is relatively high, which drives the control component 3 to rotate at a relatively high speed. In this state, the control component 3 is limited to the second position by the damping component 4, that is, the control component 3 drives the housing 1 to rotate in the second position. In this state, the small through hole 301 is offset from the three oil hole groups, and the large through hole 302 is opposite to the three oil hole groups. All three oil hole groups are in the closed state and all three oil hole groups are in the open state. That is, in the high-frequency operation state of the compressor, three of the six oil hole groups are in the open state and three are in the closed state. That is, the oil discharge of the compressor is reduced by half. Half of the oil discharge can maintain the lubrication effect of the compressor in high-frequency operation, reduce friction power consumption, and at the same time, the circulating refrigerant oil in the air conditioning system, that is, the compressor oil discharge, is reduced, reducing the formation of oil film, effectively improving the heat exchange efficiency of the air conditioning system, and further improving the heating energy efficiency of the air conditioning system.

[0079] like Figure 1 As shown, the rotor drives the control component 3 at a first speed state, which is when the compressor is operating at low or medium frequency. At this speed, the rotor's rotational speed is low, and consequently, the control component 3's rotational speed is also low. In this state, the control component 3 is limited to a first position by the damping assembly 4. That is, the control component 3 drives the housing 1 to rotate at this first position. In this state, the small through-hole 301 is opposite to the three oil hole groups, and the large through-hole 302 is also opposite to the three oil hole groups. All six oil hole groups are open. This means that when the compressor is operating at low or medium frequency, all oil hole groups are open, maintaining a large oil discharge from the compressor, reducing the accumulation of refrigerant oil inside the compressor, and preventing a reduction in the effective mass flow rate of the refrigerant, thus avoiding a decrease in the compressor's cooling capacity. Those skilled in the art will understand that in an air conditioning system, the refrigerant and refrigerant together form a mixed fluid. Since the mass of the mixed fluid is constant, a decrease in refrigerant oil (compressor oil discharge) leads to an increase in refrigerant, and an increase in refrigerant oil leads to a decrease in refrigerant.

[0080] By designing the damping component 4 to limit the position of the control component 3 under high-speed and low-speed rotation, the control component 3 can close part of the oil hole group under high-speed rotation to reduce the oil discharge of the compressor. That is, through the cooperation of the control component 3 and the damping component 4, the oil discharge of the compressor is cleverly controlled according to the compressor frequency conversion. This ensures that the oil discharge of the compressor is not affected when the compressor is running at low and medium frequencies, and the refrigerant mass flow rate and cooling capacity of the compressor are maintained accordingly. When the compressor is running at high frequencies, the oil discharge is reduced, which can maintain the oil lubrication of the compressor pump body components and reduce friction loss. At the same time, the amount of refrigeration oil participating in the circulation in the air conditioning system is reduced, and the oil film covering the inner wall of the air conditioning system pipes is reduced, which effectively improves the heat exchange efficiency of the air conditioning system and further improves the heating energy efficiency of the air conditioning system. The APF energy efficiency of the air conditioning system does not decrease.

[0081] Optionally, in one implementation of this embodiment, such as Figure 1-3 As shown in Figure 5-8,

[0082] A guide structure is provided between the housing 1 and the control component 3, allowing both to rotate within the preset angle range.

[0083] Specifically, the guide structure includes a column 6 and a limiting hole 7;

[0084] One end of the column 6 is connected to the first wall 101 and / or the second wall 102. The limiting hole 7 is provided on the control member 3 and corresponds to the column 6. The other end of the column 6 extends into the limiting hole 7 and can slide relative to the limiting hole 7.

[0085] The limiting hole 7 has a first limiting end 701 and a second limiting end 702 in the relative sliding direction with the column 6. When the rotor drives the control component 3 at a first speed, the column 6 is located at the first limiting end 701 and the control component 3 is in the first position. When the rotor drives the control component 3 at a second speed, the column 6 is located at the second limiting end 702 and the control component 3 is in the second position.

[0086] In this embodiment, preferably, the limiting hole 7 is an arc-shaped hole, the first limiting end 701 and the second limiting end 702 are the two ends of the arc-shaped hole, and four limiting posts 6 and four limiting holes 7 are provided, and they are arranged at intervals along the ring.

[0087] When the compressor is running at low and medium frequencies, the limiting post 6 is located at the first limiting end 701. At this time, the first limiting end 701 limits the limiting post 6. When the compressor is running at high frequencies, the limiting post 6 is located at the second limiting end 702. That is, the cooperation between the limiting post 6 and the limiting hole 7 allows the control component 3 to switch between the first position and the second position only. This makes the movement of the control component 3 more stable and the control of the compressor's oil output more stable.

[0088] Preferably, the housing 1 includes a housing base and a housing cover connected to the housing base. The housing base forms the first wall 101 and a peripheral wall 105 connected to the periphery of the first wall 101. The housing cover forms the second wall 102. The housing base and the housing cover together enclose the cavity 2.

[0089] There is a certain gap between the edge of the control element 3 and the peripheral wall 105. This gap forms a mounting cavity for mounting the damping assembly 4, which facilitates the installation of the damping assembly 4 between the control element 3 and the peripheral wall 105. The design of the mounting cavity makes it easy for the damping assembly 4 to limit the control element 3.

[0090] Optionally, in one implementation of this embodiment, such as Figure 1 , 2 As shown in Figure 5-8,

[0091] Both the first wall 101 and the second wall 102 are circular walls;

[0092] The housing 1 further includes a peripheral sidewall 105 connecting the first wall 101 and the second wall 102, the peripheral sidewall 105 being an arc surface;

[0093] The control component 3 is a nearly circular plate, and its circumferential sidewalls include a first flat arc segment 303 and a second flat arc segment 304 arranged opposite to each other. The first flat arc segment 303 and the second flat arc segment 304 are symmetrically arranged about the central axis of the control component 3.

[0094] The damping assembly 4 includes a damping block 401 and a damping elastic element 402. A first mounting cavity 501 is formed between the first flat arc segment 303 of the control element 3 and the peripheral sidewall 105 of the housing. A second mounting cavity 502 is formed between the second flat arc segment 304 of the control element 3 and the peripheral sidewall 105 of the housing. The damping block 401 is mounted in the first mounting cavity 501, and the damping elastic element 402 is mounted in the second mounting cavity 502.

[0095] Preferably, the control component 3 is a near-circular plate, and its circumferential sidewalls include a first flat arc segment 303 and a second flat arc segment 304 arranged opposite to each other, a first circular arc segment opposite to the first flat arc segment 303 and a second circular arc segment opposite to the second flat arc segment 304, and the first flat arc segment 303, the first circular arc segment, the second flat arc segment 304 and the second circular arc segment are connected in sequence to form a near-circular plate.

[0096] The term "near-circular" is generally defined as a geometric shape that approximates a circle, but may not be a perfect circle. In geometry, near-circular figures may be ellipses, oval shapes, or other circular-like shapes. Although these shapes differ somewhat from a circle, they appear similar.

[0097] In this embodiment, when the compressor operates at low and medium frequencies, the rotor rotation speed is relatively small, which drives the control component 3 to rotate at a relatively small speed. Under this state, the centrifugal force on the control component 3 is small, which cannot overcome the resistance of the first damping surface 4011 in the damping block 401 and the tension of the damping elastic element 402. As a result, the control component 3 is jointly limited to the first position by the damping block 401 and the damping elastic element 402. The first position corresponds to the small through hole 301 being opposite to the three oil hole groups, and the large through hole 302 being opposite to the three oil hole groups. All six oil hole groups are in an open state, thereby ensuring that the oil hole groups are all in an open state when the compressor is operating at low or medium frequencies, maintaining a large oil discharge volume of the compressor.

[0098] When the compressor operates at high frequency, the rotor rotates at a high speed, which drives the control component 3 to rotate at a high speed. Under this state, the centrifugal force on the control component 3 is large, which can overcome the resistance of the first damping surface 4011 in the damping block 401 and the tension of the damping elastic element 402. As a result, the control component 3 and the second damping surface 4012 are pressed against each other and limited to the second position by the damping assembly 4. At this time, the second tensile force on the damping elastic element 402 is greater than the first tensile force on the control component 3 when the compressor is operating at low frequency. The second position corresponds to the small through hole 301 being offset from the three oil hole groups, and the large through hole 302 being opposite to the three oil hole groups. All three oil hole groups are in the closed state and all three oil hole groups are in the open state. This achieves that when the compressor is operating at high frequency, three of the six oil hole groups are open and three are closed, reducing the amount of oil discharged by the compressor. When the compressor switches from high-frequency operation to medium-low frequency operation, the centrifugal force on the control component 3 becomes smaller. At this time, under the pull-back action of the damping elastic element 402, the control component 3 resets to the first position again. Thus, during the operation of the compressor, the oil discharge volume is always in a dynamic adjustment process, effectively maintaining the overall operating efficiency of the compressor.

[0099] Optionally, in one implementation of this embodiment, such as Figure 1-8 As shown,

[0100] The small through hole 301 is a small arc-shaped hole, and the large through hole 302 is a large arc-shaped hole;

[0101] When the rotor drives the control component 3 at the first speed, the three small arc-shaped holes correspond one-to-one with three of the oil hole groups, and one arc-shaped hole corresponds to all three other oil hole groups. All six oil hole groups are in the open state.

[0102] When the rotor drives the control component 3 at the second speed, the three small arc-shaped holes are staggered with the three oil hole groups, and the three oil hole groups are all closed. One arc-shaped hole corresponds to all three other oil hole groups, and the other three oil hole groups are all open.

[0103] In this embodiment, n=6, m=3. The through-hole 301 is designed to consist of three small arc-shaped holes, and the through-hole 302 is designed to consist of one arc-shaped hole. This facilitates the control component 3 being limited to the second position by the damping component 4 when the compressor is running at high frequency. In this second position, the control component 3 drives the housing 1 to rotate. In this state, the three small arc-shaped holes are staggered with three of the oil hole groups, and all three oil hole groups are closed. One arc-shaped hole corresponds to all three other oil hole groups, and the other three oil hole groups are open. This ensures that when the compressor is running at high frequency, three of the six oil hole groups are open and three are closed. This reduces the amount of oil discharged by half. Half of the oil discharge can maintain the lubrication effect of the compressor during high-frequency operation, reduce frictional power consumption, and at the same time, the circulating refrigerant oil in the air conditioning system, i.e., the oil discharged by the compressor, is reduced, reducing the formation of oil film and effectively improving the heat exchange efficiency of the air conditioning system, further improving the heating energy efficiency of the air conditioning system.

[0104] This also facilitates the operation of the compressor at low to medium frequencies. When the control component 3 is limited to the first position by the damping component 4, the control component 3 drives the housing 1 to rotate. In this state, the three small arc-shaped holes correspond one-to-one with the three oil hole groups, and all three oil hole groups are open. One arc-shaped hole corresponds to all three other oil hole groups, and all three other oil hole groups are open. This ensures that all six oil hole groups are open when the compressor is operating at low to medium frequencies, maintaining a large oil discharge capacity of the compressor, reducing the accumulation of refrigerant oil in the compressor, avoiding a reduction in the effective mass flow rate of the refrigerant, and avoiding a decrease in the cooling capacity of the compressor.

[0105] Optionally, in one implementation of this embodiment, such as Figure 5 , 11 As shown,

[0106] The damping block 401 includes a connecting surface located on one side of the damping block and a first damping surface 4011 and a second damping surface 4012 located on the other side of the damping block;

[0107] The connecting surface facing the peripheral sidewall 105 of the housing interacts with the peripheral sidewall of the housing. The first damping surface 4011 and the second damping surface 4012 face the control member and a protrusion 4013 facing the control member is formed between them. When the control member 3 is driven by the rotor to a first speed state, the first flat arc segment 303 of the control member 3 abuts against the first damping surface 4011 and the control member 3 is limited to the first position. When the control member 3 is driven by the rotor to a second speed state, the first flat arc segment 303 of the control member 3 abuts against the second damping surface 4012 and the control member 3 is limited to the second position.

[0108] The damping elastic element 402 is connected to the peripheral sidewall 105 and the control element 3 at both ends. When the control element 3 is driven by the rotor to a first speed state, the damping elastic element 402 has a first tensile force. When the control element 3 is driven by the rotor to a second speed state, the damping elastic element 402 has a second tensile force. The second tensile force is greater than the first tensile force.

[0109] In this embodiment, the protrusion 4013 is located between the first damping surface 4011 and the second damping surface 4012, which plays a role in the relative positioning of the control member 3. That is, when the control member 3 is in the first position or the second position, the protrusion 4013 can keep the position of the control member 3 stable in this state.

[0110] Optionally, in one implementation of this embodiment, such as Figure 3 As shown,

[0111] A shaft hole 8 is provided at the center of both the first wall 101 and the second wall 102. A bushing 9 opposite to the shaft hole 8 is provided at the center of the control component 3. The rotor is connected to the bushing 9 and passes through the shaft hole 8.

[0112] In this embodiment, the bushing 9 is designed to facilitate direct transmission connection between the rotor in the compressor and the bushing 9, thereby allowing the control component 3 to be directly driven by the rotor. The shaft hole 8 is designed to allow the rotor to pass through directly, and the rotor itself does not have a connection with the shaft hole 8, so as to avoid interference between the rotor and the housing 1, so that the housing 1 rotates completely with the rotation of the control component 3, thereby realizing that the relative position between the control component 3 and the housing 1 changes with the rotation speed of the control component 3.

[0113] Optionally, in one implementation of this embodiment, such as Figure 10 As shown,

[0114] The oil outlet control component is used for the motor rotor or compressor rotor.

[0115] The housing 1 is configured as a baffle of the rotor, or the baffle of the rotor is configured as the housing 1.

[0116] This design simplifies the structure of the motor rotor or compressor rotor. During low-frequency compressor operation, the damping component 4 ensures that the six oil holes on the rotor remain open, guaranteeing oil discharge and reducing the reduction in effective refrigerant mass flow rate caused by refrigerant oil accumulation in the compressor, thus decreasing the compressor's cooling capacity. During high-frequency compressor operation, under greater centrifugal force (exceeding the damping force of the damping component 4), the control component 3 rotates slightly clockwise, blocking three oil holes near the main balance block 10 while keeping the oil holes on the auxiliary balance block 11 open. This reduces high-frequency oil discharge, ensuring lubrication during high-frequency compressor operation, reducing frictional power consumption, and decreasing the circulating refrigerant oil in both units. This also reduces the formation of lubricating oil films in both units, improving heat exchange efficiency and enhancing system capacity. Effective control of the compressor's oil discharge effectively affects the system's APF (Advanced Performance Factor), thus maintaining compressor efficiency to some extent even after the casing is lowered.

[0117] Example 2

[0118] like Figure 9 , 10 As shown in this embodiment, a compressor is provided, including:

[0119] The oil discharge control component in Example 1;

[0120] The rotor 12 has an oil outlet control component disposed on one side wall of the rotor 12. The rotor 12 has an oil hole opposite to the oil hole group. The rotor 12 and the oil outlet control component together constitute the rotor. The oil outlet control component is provided with a secondary balance block 11, and the secondary balance block 11 is close to the through hole 302. The rotor 12 is provided with a main balance block 10 on the side wall opposite to the oil outlet control component.

[0121] In existing air conditioning systems, with increasing demands for efficiency improvement and cost reduction, the requirements for compressors are becoming increasingly stringent. In some cases, due to limited installation space, the air conditioner casing is sometimes shortened. In this situation, the corresponding upper cavity volume of the motor is reduced, resulting in the compressor discharging more oil under the same work conditions. The overall energy efficiency ratio (APF) of the air conditioning system is significantly lower than when the casing is not shortened, especially in low-temperature heating conditions. The compressor provided in this embodiment has an oil discharge control component on the rotor 12 to control the amount of oil discharged by the compressor under high-frequency and low-to-medium-frequency operating conditions. The oil discharge control component controls the amount of oil flowing through the oil hole at one end of the rotor from the main balance block 10. That is, the oil discharge control component in Embodiment 1 is on the rotor 12, and the whole is similar to a rotor baffle. The large through hole 302 is close to the secondary balance block 11, so that the oil hole at one end of the secondary balance block 11 is always open. The oil discharge rate is adjusted by the relative or staggered arrangement of the small through hole 301 near the main balance block 10 and the corresponding oil hole group. When the compressor operates at low frequency, the damping component 4 ensures that the six oil holes of the rotor are open, guaranteeing oil discharge and reducing the reduction in effective refrigerant mass flow rate caused by refrigerant oil accumulation in the compressor, thus lowering the compressor's cooling capacity. When the compressor operates at high frequency, under the influence of a larger centrifugal force exceeding the damping force of the damping component 4, the control component 3 rotates clockwise within a small range. This blocks the three oil holes near the main balance block 10, while keeping the oil holes on the auxiliary balance block 11 open, reducing high-frequency oil discharge and ensuring lubrication during high-frequency compressor operation. This reduces frictional power consumption, and the reduced circulating refrigerant oil in both compressors decreases the formation of lubricating oil films, improving heat exchange efficiency and enhancing system capacity. The effective control of the compressor's oil discharge effectively affects the system's APF (Advanced Performance Factor), thus maintaining the compressor's energy efficiency to some extent even after the casing is lowered.

[0122] Example 3

[0123] This embodiment provides an air conditioner, including:

[0124] The oil outlet control component in Example 1, or the compressor in Example 2.

[0125] By designing the damping component 4 to limit the position of the control component 3 under high-speed and low-speed rotation, the control component 3 can close part of the oil hole group under high-speed rotation to reduce the oil discharge of the compressor. That is, through the cooperation of the control component 3 and the damping component 4, the oil discharge of the compressor is cleverly controlled according to the compressor frequency conversion. This ensures that the oil discharge of the compressor is not affected when the compressor is running at low and medium frequencies, and the refrigerant mass flow rate and cooling capacity of the compressor are maintained accordingly. When the compressor is running at high frequencies, the oil discharge is reduced, which can maintain the oil lubrication of the compressor pump body components and reduce friction loss. At the same time, the amount of refrigeration oil participating in the circulation in the air conditioning system is reduced, and the oil film covering the inner wall of the air conditioning system pipes is reduced, which effectively improves the heat exchange efficiency of the air conditioning system and further improves the heating energy efficiency of the air conditioning system. The APF energy efficiency of the air conditioning system does not decrease.

[0126] In summary, the ingenious design of the oil delivery control component lies in:

[0127] First, by designing damping components to limit the position of the control components under high-speed and low-speed rotation, the control components can close part of the oil hole group under high-speed rotation to reduce the amount of oil discharged by the compressor. In other words, the oil discharge of the compressor is cleverly controlled by the cooperation of the control components and damping components according to the compressor frequency conversion. This ensures that the oil discharge of the compressor is not affected when the compressor is running at low and medium frequencies, and the refrigerant mass flow rate and cooling capacity of the compressor are maintained accordingly. When the compressor is running at high frequencies, the oil discharge is reduced, which can maintain the oil lubrication of the compressor pump body components and reduce friction loss. At the same time, the amount of refrigeration oil participating in the circulation in the air conditioning system is reduced, and the oil film covering the inner wall of the air conditioning system pipes is reduced, which effectively improves the heat exchange efficiency of the air conditioning system and further improves the heating energy efficiency of the air conditioning system. The APF energy efficiency of the air conditioning system does not decrease.

[0128] Secondly, the damping assembly is designed as a combination of a damping block and a damping elastic element. During low-frequency operation of the compressor, the rotation speed of the control component is relatively small, and the centrifugal force on the control component is small, insufficient to overcome the resistance in the damping block and the tension of the damping elastic element. Therefore, the control component is jointly limited to the first position by the damping block and the damping elastic element. At the first position, all oil holes are open, ensuring that the oil holes remain open during low- or medium-frequency operation, maintaining a large oil discharge rate. During high-frequency operation, the rotation speed of the control component is large, and the centrifugal force on the control component is significant, capable of overcoming the resistance of the damping block and the tension of the damping elastic element. Therefore, the control component is limited to the second position by the damping assembly. At the second position, half of the multiple oil holes are open and half are closed, thus reducing the oil discharge rate during high-frequency operation. When the compressor switches from high-frequency operation to medium-low frequency operation, the centrifugal force on the control components becomes smaller. At this time, under the pull-back action of the damping elastic element, the control components reset to the first position. Thus, the oil discharge volume is always dynamically adjusted during the operation of the compressor, effectively maintaining the overall operating efficiency of the compressor.

[0129] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0130] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0131] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0132] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0133] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. An oil discharge control assembly, disposed on the rotor of rotating machinery, characterized in that, The oil outlet control component includes: The housing (1) has a cavity (2) and two parallel first walls (101) and second walls (102). The first wall (101) has a plurality of first through holes (103) spaced apart around the rotor axis, and the second wall (102) has a plurality of second through holes (104) spaced apart around the rotor axis. The plurality of first through holes (103) and the plurality of second through holes (104) correspond one-to-one to form a plurality of oil hole groups. The control component (3) is disposed in the cavity (2) and has a first plate surface that is opposite to and parallel to the first wall (101) and a second plate surface that is opposite to and parallel to the second wall (102). The control component (3) is provided with a plurality of through holes penetrating the first plate surface and the second plate surface. The plurality of through holes are distributed at intervals along the circumference of the rotor and can communicate with different oil hole groups as the rotation angle of the control component (3) changes. The control component (3) is connected to the rotor drive, and the control component (3) can rotate relative to the housing (1) within a preset angle range; A damping component (4) is provided between the control component (3) and the housing (1) and can deform in the direction of relative rotation between the two. The housing (1) and the control unit (3) are configured such that, under the different rotational speeds of the rotor and the action of the damping assembly (4), the plurality of oil hole groups and the plurality of through holes form a flow of oil with different flow rates.

2. The oil outlet control component according to claim 1, characterized in that, The plurality of oil hole groups and the through holes are located on a circle with the same radius; the number of the plurality of first through holes (103), the plurality of second through holes (104), and the plurality of oil hole groups are all n; The plurality of through holes includes m through holes (301) and one through hole (302). The circumferential length of the through hole (302) is set to always be able to conduct the circumferentially arranged group of nm oil holes in sequence during the rotation of the control component, where n > m and nm ≥ 2. The rotor drives the control component (3) at a first speed state. The control component (3) is limited to a first position by the damping component (4). The m small through holes (301) are opposite to and connected to the m oil hole groups. The large through hole (302) is opposite to and connected to the nm oil hole groups. All n oil hole groups are in an open state. The rotor drives the control component (3) at the second speed state. The control component (3) is limited to the second position by the damping component (4). The m small through holes (301) are staggered from the m oil hole groups. The large through hole (302) is opposite to and connected to the nm oil hole groups. The m oil hole groups are all in the closed state, and the nm oil hole groups are all in the open state.

3. The oil outlet control component according to claim 2, characterized in that, When n=6 and m=3, the rotor drives the control component (3) at the first speed state, the three small through holes correspond one-to-one with the three oil hole groups, the large through hole is simultaneously connected to the other three oil hole groups, and all six oil hole groups are in an open state. When the rotor drives the control component (3) at the second speed, the three small through holes are staggered from the three oil hole groups, the three oil hole groups are all closed, the large through holes correspond to the other three oil hole groups, and the other three oil hole groups are all open.

4. The oil outlet control component according to claim 2 or 3, characterized in that, A guide structure is provided between the housing (1) and the control component (3) to allow both to rotate within the preset angle range.

5. The oil outlet control component according to claim 4, characterized in that, The guide structure includes a column (6) and a limiting hole (7); One end of the column (6) is connected to the first wall (101) and / or the second wall (102), the limiting hole (7) is provided on the control member (3) and corresponds to the column (6), and the other end of the column (6) extends into the limiting hole (7) and can slide relative to the limiting hole (7); The limiting hole (7) has a first limiting end (701) and a second limiting end (702) in the relative sliding direction with the column (6). When the rotor drives the control member (3) at a first speed, the column (6) is located at the first limiting end (701) and the control member (3) is in the first position. When the rotor drives the control member (3) at a second speed, the column (6) is located at the second limiting end (702) and the control member (3) is in the second position.

6. The oil outlet control component according to any one of claims 2-3, characterized in that, Both the first wall (101) and the second wall (102) are circular walls; The housing (1) further includes a peripheral sidewall (105) connecting the first wall (101) and the second wall (102), the peripheral sidewall (105) being an arc surface; The control component (3) is a near-circular plate, and its peripheral sidewalls include a first flat arc segment (303) and a second flat arc segment (304) arranged opposite to each other. The first flat arc segment (303) and the second flat arc segment (304) are symmetrically arranged about the central axis of the control component (3). The damping assembly (4) includes a damping block (401) and a damping elastic element (402). A first mounting cavity (501) is formed between the first flat arc segment (303) of the control element (3) and the peripheral sidewall (105) of the housing. A second mounting cavity (502) is formed between the second flat arc segment (304) of the control element (3) and the peripheral sidewall (105) of the housing. The damping block (401) is installed in the first mounting cavity (501), and the damping elastic element (402) is installed in the second mounting cavity (502).

7. The oil outlet control component according to claim 6, characterized in that, The damping block (401) includes a connecting surface located on one side of the damping block and a first damping surface (4011) and a second damping surface (4012) located on the other side of the damping block. The connecting surface faces the peripheral sidewall (105) of the housing and acts together with the peripheral sidewall of the housing. The first damping surface (4011) and the second damping surface (4012) face the control member and form a protrusion (4013) facing the control member. When the control member (3) is driven by the rotor to a first speed state, the first flat arc segment (303) of the control member (3) abuts against the first damping surface (4011) and the control member (3) is limited to the first position. When the control member (3) is driven by the rotor to a second speed state, the first flat arc segment (303) of the control member (3) abuts against the second damping surface (4012) and the control member (3) is limited to the second position. The damping elastic element (402) is connected to the peripheral sidewall (105) and the control element (3) at both ends respectively. When the control element (3) is driven by the rotor to a first speed state, the damping elastic element (402) has a first tensile force. When the control element (3) is driven by the rotor to a second speed state, the damping elastic element (402) has a second tensile force. The second tensile force is greater than the first tensile force.

8. The oil outlet control component according to claim 2, characterized in that, The oil outlet control component is used for the motor rotor or compressor rotor. The rotor is provided with a rotor baffle, and the housing (1) is configured as the rotor baffle or the rotor baffle is configured as the housing (1).

9. A rotating machine, characterized in that, include: The rotor (12) and the oil outlet control assembly as described in any one of claims 1-8.

10. A compressor, characterized in that, include: Rotor (12) and oil outlet control assembly as described in any one of claims 2-8; The housing (1) is disposed on one side wall of the rotor (12). The rotor (12) has an oil hole opposite to the oil hole group. The housing (1) is provided with a secondary balance block (11), and the secondary balance block (11) is close to the through hole (302). The rotor (12) is provided with a main balance block (10) on the side wall opposite to the housing (1).

11. The compressor according to claim 10, characterized in that, When the compressor is running at low frequency, the control element (3) is restricted to the first position by the damping component (4), and all the oil hole groups are in the open state; When the compressor is running at high frequency, the control element (3) is restricted to the second position by the damping component (4), and part of the oil hole group is in a conductive state.

12. The compressor according to claim 10 or 11, characterized in that, The rotor (12) includes a rotor baffle, and the housing (1) and the cavity (2) are constructed from the rotor baffle.

13. An air conditioner, characterized in that, include: The compressor as described in any one of claims 10-12.

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