Compressor assemblies and compressors having them

By designing sealing components controlled by thermal expansion or magnetic field in the compressor assembly, the problem of the distributor being unable to match the refrigerant return flow is solved, realizing the matching of refrigerant circulation volume and energy efficiency improvement under different operating conditions, and ensuring the stable operation of the air conditioning system.

CN117536829BActive Publication Date: 2026-04-03ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-21
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing distributors cannot match the refrigerant return flow requirements according to different operating conditions, resulting in insufficient refrigerant circulation or increased energy consumption in the air conditioning system under different operating conditions.

Method used

A compressor assembly was designed, including a distributor. The opening and closing of the oil return hole is controlled by a sealing component through metal plates with different coefficients of thermal expansion or a magnetic field. The refrigerant return state in the liquid storage chamber is switched according to the compressor current value to meet the refrigerant circulation requirements under different operating conditions.

Benefits of technology

It achieves matching of refrigerant circulation volume under different operating conditions, improves the energy efficiency of the air conditioning system, prevents excessive or insufficient refrigerant, and ensures stable operation of the compressor.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a compressor assembly and an air conditioner having the same. The compressor assembly includes a body and a distributor. The distributor is mounted on the body and includes a liquid storage chamber, an inlet pipe, and a sealing element. A first oil return hole is provided on the side wall of the inlet pipe located in the liquid storage chamber, allowing liquid in the liquid storage chamber to flow back to the compressor through the first oil return hole. The sealing element is disposed in the liquid storage chamber and corresponds to the first oil return hole. The sealing element is connected in series with the power supply circuit of the body and has a relatively positioned open state and a closed state. When the current in the compressor circuit is greater than a preset current value, the sealing element is in the open state, and the first oil return hole is connected to the liquid storage chamber. When the current in the compressor circuit is less than or equal to the preset current value, the sealing element is in the closed state, blocking the first oil return hole. This technical solution solves the problem that existing distributors cannot match the refrigerant return flow rate according to different operating conditions.
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Description

Technical Field

[0001] This invention relates to the field of compressor technology, and more specifically, to a compressor assembly and an air conditioner having the same. Background Technology

[0002] Currently, a distributor is usually installed at the intake end of the compressor to separate the liquid refrigerant from the gaseous refrigerant entering the compressor, in order to prevent the liquid refrigerant from causing liquid slugging in the compressor cylinder. After the refrigerant passes through the distributor, the gaseous refrigerant can enter the compressor cylinder, while the liquid refrigerant is stored in the liquid receiver of the distributor and flows back to the compressor through the oil return hole in the distributor to meet the refrigerant circulation requirements of the air conditioning system.

[0003] In existing technologies, compressors have different refrigerant return flow requirements depending on the operating conditions. Under low-temperature heating and maximum cooling conditions, the amount of refrigerant stored in the distributor's liquid storage chamber should be small to maximize system capacity and allow as much refrigerant as possible to participate in the circulation process, thus meeting the requirements for maximum cooling and low-temperature heating capacity. Under rated cooling and low-temperature intermediate cooling conditions, a certain amount of refrigerant should be stored in the distributor's liquid storage chamber to match the overall energy efficiency of the air conditioning system. However, existing distributors cannot meet the requirements for matching refrigerant return flow according to different operating conditions. Summary of the Invention

[0004] This invention provides a compressor assembly and an air conditioner having the same, to solve the problem that the distributor in the prior art cannot meet the requirement of matching the refrigerant return flow according to different operating conditions.

[0005] According to one aspect of the present invention, a compressor assembly is provided, the compressor assembly including a body and a liquid distributor, the liquid distributor being disposed on the body, the liquid distributor including: a housing having a liquid storage chamber; an intake pipe, one end of the intake pipe being located in the liquid storage chamber, the other end of the intake pipe being connected to the body, a first oil return hole being provided on the side wall of the intake pipe located in the liquid storage chamber, the liquid in the liquid storage chamber being able to flow back to the compressor through the first oil return hole; a sealing member being disposed in the liquid storage chamber and corresponding to the first oil return hole, the sealing member having a relatively disposed open state and a sealed state, when the sealing member is in the open state, the first oil return hole is connected to the liquid storage chamber, when the sealing member is in the sealed state, the sealing member blocks the first oil return hole, the sealing member is connected in series with the power supply circuit of the body, when the operating current of the compressor is greater than a preset current value, the sealing member is in the open state, when the operating current of the compressor is less than or equal to the preset current value, the sealing member switches to the sealed state.

[0006] Furthermore, the sealing component has a connecting end and a sealing end that are arranged opposite to each other. The connecting end of the sealing component is fixedly connected to the side wall of the intake pipe. The sealing component includes a first metal sheet and a second metal sheet stacked along the thickness direction. The first metal sheet is disposed close to the side wall of the intake pipe. The thermal expansion coefficient of the first metal sheet is greater than that of the second metal sheet. When the operating current of the compressor is greater than the preset current value, the first metal sheet and the second metal sheet expand due to heat, causing the sealing end to bend away from the first oil return hole, so that the sealing component switches to the open state.

[0007] Furthermore, the sealing component includes: a stationary iron core having a receiving cavity; a coil wound on the outer wall of the stationary iron core, the coil being connected in series with the power supply circuit of the main body; a moving iron core inserted into the receiving cavity; a sealing element disposed at the end of the moving iron core facing the first oil return hole, the sealing element sealingly engaging with the first oil return hole when the sealing component is in the sealing state; and a return spring, one end of the return spring connected to the sealing element and the other end of the return spring connected to the stationary iron core, the return spring providing elastic force to the moving iron core to switch from the open state to the sealed state. When the compressor's operating current exceeds a preset current value, the coil and the stationary iron core cooperate to generate a magnetic field, causing the moving iron core to overcome the elastic force of the return spring and move away from the first oil return hole, thereby switching the sealing component to the open state.

[0008] Furthermore, an insulating gasket is provided between the connecting end and the side wall of the intake pipe, and a sealing gasket is provided between the sealing end and the side wall of the intake pipe.

[0009] Furthermore, the outer surfaces of the first and second metal sheets are provided with an insulating coating.

[0010] Furthermore, the housing is provided with wiring terminals, and the sealing component is electrically connected to the main body through the wiring terminals. There is a sealing structure between the wiring terminals and the side wall of the housing.

[0011] Furthermore, a second oil return hole is provided on the intake pipe, which is located above the first oil return hole along the height direction of the liquid storage chamber.

[0012] Furthermore, the separator also includes a partition with a through hole, through which an air inlet pipe passes. The partition divides the liquid storage chamber into a first chamber and a second chamber distributed vertically. The first chamber is located above the second chamber. The air inlet pipe has an inlet end and an outlet end that are arranged opposite to each other. The outlet end is located in the first chamber, and the first oil return hole is located in the second chamber.

[0013] Furthermore, the partition is equipped with wire holes.

[0014] According to another aspect of the present invention, an air conditioner is provided, the air conditioner having a compressor assembly, the compressor assembly being the compressor assembly described above.

[0015] According to the technical solution of this invention, the distributor includes a housing, an inlet pipe, and a sealing component. When the compressor is in a low-temperature heating or maximum cooling condition, the compressor will operate at a higher frequency. At this time, the operating current of the compressor will be greater than the operating current in the rated cooling or low-temperature intermediate cooling conditions. In this application, a preset current value is set. When the operating current of the compressor is greater than the preset current value, it indicates that the compressor is in a low-temperature heating or maximum cooling condition. At this time, the sealing component can be switched to the open state, so that the liquid refrigerant in the liquid storage chamber can flow back to the compressor through the first oil return hole. The amount of residual liquid in the liquid storage chamber is small, and the refrigerant circulation in the air conditioning system increases, which can meet the circulation requirements of the system. When the operating current of the compressor is less than or equal to the preset current value, it indicates that the compressor is in a rated cooling or low-temperature intermediate cooling condition. The sealing component can block the first oil return hole. At this time, the amount of refrigerant stored in the liquid storage chamber is large, the refrigerant circulation in the air conditioning system is small, and the energy efficiency matching effect is good. The technical solution of this application can match the current working status and overall energy efficiency of the air conditioning system, prevent insufficient or excessive refrigerant return, which could lead to insufficient refrigerant circulation in the air conditioning system or increased compressor energy consumption, and meet the compressor's usage requirements under different operating conditions. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of the structure of the sealing member provided according to the first embodiment of the present invention in the open state is shown;

[0018] Figure 2 A schematic diagram of the structure of the sealing member provided according to the first embodiment of the present invention in the sealing state is shown;

[0019] Figure 3 It shows Figure 1 A magnified view of a section at point A in the middle;

[0020] Figure 4 It shows Figure 2 A magnified view of a section at point B in the middle;

[0021] Figure 5 A schematic diagram of the structure of the sealing member provided according to the second embodiment of the present invention in the open state is shown;

[0022] Figure 6 A schematic diagram of the structure of the sealing member provided according to the second embodiment of the present invention in the sealing state is shown;

[0023] Figure 7 It shows Figure 5A magnified view of a section at point C;

[0024] Figure 8 It shows Figure 6 A magnified view of a section at point D;

[0025] Figure 9 It shows Figure 1 A magnified view of a section at point E in the middle.

[0026] The above figures include the following reference numerals:

[0027] 100. Ontology;

[0028] 200. Dispenser;

[0029] 210. Shell;

[0030] 220. Liquid storage chamber;

[0031] 230. Intake pipe; 231. First oil return hole; 232. Second oil return hole;

[0032] 240. Sealing component; 241. First metal sheet; 242. Second metal sheet; 243. Stationary iron core; 244. Coil; 245. Moving iron core; 246. Sealing component; 247. Return spring;

[0033] 250. Insulating mat;

[0034] 260. Sealing gasket;

[0035] 270. Terminal blocks;

[0036] 280. Partition; 281. Wire hole. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] like Figures 1 to 4As shown, an embodiment of this application provides a compressor assembly, which includes a body 100 and a distributor 200. The distributor 200 is disposed on the body 100 and includes a housing 210, an inlet pipe 230, and a sealing member 240. The housing 210 has a liquid storage chamber 220. One end of the inlet pipe 230 is located within the liquid storage chamber 220, and the other end of the inlet pipe 230 communicates with the body 100. A first oil return hole 231 is provided on the side wall of the inlet pipe 230 located within the liquid storage chamber 220, allowing liquid in the liquid storage chamber 220 to flow back to the compressor through the first oil return hole 231. A sealing component 240 is disposed in the liquid storage chamber 220 and corresponding to the first oil return hole 231. The sealing component 240 has an open state and a blocked state. When the sealing component 240 is in the open state, the first oil return hole 231 is connected to the liquid storage chamber 220. When the sealing component 240 is in the blocked state, the sealing component 240 blocks the first oil return hole 231. The sealing component 240 is connected in series with the power supply circuit of the main body 100. When the operating current of the compressor is greater than the preset current value, the sealing component 240 is in the open state. When the operating current of the compressor is the preset current value, the sealing component 240 switches to the blocked state.

[0039] According to the technical solution of this application, the distributor 200 includes a housing 210, an inlet pipe 230, and a sealing component 240. When the compressor body 100 is in a low-temperature heating or maximum cooling condition, the compressor body 100 will operate at a higher frequency. At this time, the operating current of the compressor body 100 will be greater than the operating current in rated cooling or low-temperature intermediate cooling conditions. In this application, a preset current value is set. When the operating current of the compressor body 100 is greater than the preset current value, it indicates that the compressor body 100 is in a low-temperature heating or maximum cooling condition. At this time, the sealing component 240 can cut off the flow. When switched to the open state, the liquid refrigerant in the liquid receiver 220 can flow back to the compressor body 100 through the first oil return hole 231. With less residual liquid in the liquid receiver 220, the refrigerant circulation volume in the air conditioning system increases, meeting the system's circulation requirements. When the operating current of the compressor body 100 is less than or equal to a preset current value, it indicates that the compressor body 100 is in rated cooling or low-temperature intermediate cooling conditions. The sealing component 240 can block the first oil return hole 231. At this time, the amount of refrigerant stored in the liquid receiver 220 is larger, the refrigerant circulation volume in the air conditioning system is smaller, and the energy efficiency matching effect is good. Through the technical solution of this application, the current operating state and overall energy efficiency of the air conditioning system can be matched, preventing insufficient or excessive refrigerant return, which could lead to insufficient refrigerant circulation in the air conditioning system or increased energy consumption of the compressor body 100, thus meeting the usage requirements of the compressor body 100 under different operating conditions.

[0040] Specifically, in this application, the preset current value can be adjusted according to the compressor body 100 of different power and different air conditioning systems, and no limitation is made in this application.

[0041] Specifically, in this application, as the refrigerant circulates in the air conditioning system, the refrigerant oil in the compressor body 100 is carried out of the compressor body 100 along with the refrigerant circulation. When the refrigerant oil enters the liquid receiver 220, it accumulates inside the liquid receiver 220. When the compressor body 100 operates under rated cooling or low-temperature intermediate cooling conditions, a certain amount of refrigerant oil needs to be stored in the liquid receiver 220 to prevent excessive accumulation of liquid refrigerant oil inside the compressor body 100, which could damage the pump parts of the compressor body 100. When the compressor body 100 operates under low-temperature heating or maximum cooling conditions, the refrigerant oil needs to flow back into the compressor body 100 in a timely manner to prevent damage to the pump parts inside the compressor body 100. To address the issue of oil shortage and wear, the technical solution of this application allows for adjustment of the amount of refrigerant oil returning to the compressor body 100 according to different operating conditions. When the compressor body 100 operates at low temperature heating or maximum cooling, the sealing component 240 opens the first oil return hole 231, allowing refrigerant oil to return to the compressor body 100 through the first oil return hole 231, thus meeting the operating needs of the compressor body 100 itself. When the compressor body 100 operates at rated cooling or low temperature heating, the sealing component 240 seals the first oil return hole 231, and the refrigerant oil is stored in the liquid storage chamber 220, preventing excessive refrigerant oil from returning to the compressor body 100 and ensuring the stability of the compressor body 100's operation.

[0042] Specifically, in this application, the compressor body 100 is powered by three-phase power supply, and the current in the three-phase power supply circuit is the same. The sealing member 240 can be connected in series with any phase of the three-phase power supply, and this application does not impose any restrictions on this.

[0043] refer to Figures 1 to 4In the first embodiment of this application, the sealing member 240 has a connecting end and a sealing end that are disposed opposite to each other. The connecting end of the sealing member 240 is fixedly connected to the side wall of the intake pipe 230. The sealing member 240 includes a first metal sheet 241 and a second metal sheet 242 stacked along the thickness direction. The first metal sheet 241 is disposed close to the side wall of the intake pipe 230. The coefficient of thermal expansion of the first metal sheet 241 is greater than that of the second metal sheet 242. When the operating current of the compressor is greater than the preset current value, the first metal sheet 241 and the second metal sheet 242 are heated and expanded, causing the sealing end to bend away from the first oil return hole 231, so that the sealing member 240 is switched to the open state. With the above settings, when the compressor body 100 operates in low-temperature heating or maximum cooling mode, the operating current of the compressor body 100 will be greater than the preset current value. At this time, the first metal plate 241 and the second metal plate 242 are connected to the power supply circuit of the compressor body 100. The first metal plate 241 and the second metal plate 242 are energized and heated. Because the coefficient of thermal expansion of the first metal plate 241 is greater than that of the second metal plate 242, the deformation of the first metal plate 241 will be greater than that of the second metal plate 242. The connecting end of the sealing member 240 is fixed to the side wall of the intake pipe 230. When connected, the free end of the sealing member 240 will bend away from the first oil return hole 231. At this time, the sealing member 240 can switch to the open state so that the liquid storage chamber 220 is connected to the air intake pipe 230. When the compressor body 100 is running under rated cooling or intermediate cooling conditions, the operating current of the compressor body 100 will be equal to or less than the preset current value. The first metal sheet 241 and the second metal sheet 242 will not be heated and will not deform. At this time, the sealing member 240 can switch to the blocking state to block the first oil return hole 231.

[0044] Specifically in this embodiment, the first metal sheet 241 and the second metal sheet 242 can be directly connected to the circuit. The current passing through the metal heats up the metal, which can cause the first metal sheet 241 and the second metal sheet 242 to deform, so that the sealing member 240 switches between the open state and the sealing state.

[0045] Specifically, in this embodiment, the first metal sheet 241 and the second metal sheet 242 may not be directly connected to the circuit. The circuit wires may be wrapped around the first metal sheet 241 and the second metal sheet 242. Through electromagnetic induction, the first metal sheet 241 and the second metal sheet 242 are heated and deformed, causing the sealing member 240 to switch between the open state and the sealing state. In this way, the interference of the sealing member 240 on the overall operating power of the compressor body 100 can be reduced, thereby improving the operating efficiency of the compressor body 100.

[0046] Furthermore, in this embodiment, the first metal sheet 241 and the second metal sheet 242 generate a certain amount of heat during the process of switching from the blocked state to the open state and after switching to the open state. This heats the liquid refrigerant in the liquid storage chamber 220, causing the liquid refrigerant inside the distributor 200 to evaporate and transform into gaseous refrigerant. The gaseous refrigerant can directly participate in the circulation of the air conditioning system. In low-temperature intermediate cooling and rated cooling conditions, the compressor body 100 has low power, and the first metal sheet 241 and the second metal sheet 242 generate little heat, which is insufficient to turn the liquid refrigerant inside the distributor into gas. It is still stored in the liquid storage chamber 220 as a liquid. In low-temperature heating or maximum cooling conditions, the amount of liquid remaining inside the distributor 200 is small, the system circulation volume is large, and the capacity is well utilized, which can meet the system requirements. In rated cooling or low-temperature intermediate cooling conditions, the amount of refrigerant stored inside the distributor 200 is large, the circulation volume of the liquid refrigerant is small, and the energy efficiency matching effect is good.

[0047] Specifically, an insulating pad 250 is provided between the connecting end and the side wall of the intake pipe 230. This arrangement prevents the sealing component 240 from conducting electricity to the intake pipe 230, reduces the risk of leakage of the distributor 200, and ensures the safe operation of the compressor assembly.

[0048] Furthermore, the outer surfaces of the first metal sheet 241 and the second metal sheet 242 are provided with an insulating coating. This design prevents the first metal sheet 241 and the second metal sheet 242 from conducting electricity with the liquid refrigerant within the liquid storage chamber 220, further reducing the risk of leakage from the distributor 200 and ensuring the safe operation of the compressor assembly.

[0049] Furthermore, a sealing gasket 260 is provided between the sealing end of the sealing component 240 and the side wall of the intake pipe 230. With the above arrangement, when the sealing component 240 is in the sealing state, the sealing gasket 260 can improve the sealing effect on the first oil return hole 231 and prevent refrigerant leakage at the first oil return hole 231.

[0050] In this embodiment, the thickness of the insulating pad 250 can be set to be less than the thickness of the sealing pad 260. Thus, when the sealing member 240 is in the sealing state, the first metal sheet 241 and the second metal sheet 242 are in a straight state. The insulating pad 250 is disposed at the connection end, and the sealing pad 260 can maintain contact with the first oil return hole under the elastic force of the first metal sheet 241 and the second metal sheet 242. This can further improve the sealing effect of the sealing pad 260.

[0051] Specifically, the instantaneous current of the compressor body 100 during startup is generally high, and the sealing component 240 needs a certain amount of time to achieve state switching due to thermal expansion. The technical solution provided by the first embodiment of this application can overcome the interference of the starting current and ensure the effectiveness of the sealing component 240.

[0052] refer to Figures 5 to 8 In the second specific embodiment of this application, the sealing component 240 includes a stationary iron core 243, a coil 244, a moving iron core 245, a sealing component 246, and a return spring 247. The stationary iron core 243 has a receiving cavity, and the coil 244 is wound on the outer wall of the stationary iron core 243. The coil 244 is connected in series with the power supply circuit of the main body 100. The moving iron core 245 is inserted into the receiving cavity. The sealing member 246 is located at the end of the moving iron core 245 facing the first oil return hole 231. When the sealing member 240 is in the sealing state, the sealing member 246 is sealed with the first oil return hole 231. One end of the return spring 247 is connected to the sealing member 246, and the other end of the return spring 247 is connected to the stationary iron core 243. The return spring 247 can provide the moving iron core 245 with an elastic force to switch from the open state to the sealed state. When the operating current of the compressor is greater than the preset current value, the coil 244 and the stationary iron core 243 cooperate to generate a magnetic field, causing the moving iron core 245 to overcome the elastic force of the return spring 247 and move away from the first oil return hole 231, so that the sealing member 240 switches to the open state. With the above settings, when the compressor body 100 is operating in low-temperature heating or maximum cooling mode, the operating current of the compressor body 100 will be greater than the preset current value. At this time, the stationary iron core 243 will be affected by the magnetic field generated by the coil 244, which will drive the moving iron core 245 to overcome the elastic force of the return spring 247 and move away from the first oil return hole 231, so that the sealing member 240 can switch to the open state, and the liquid storage chamber 220 can be connected to the intake pipe 230. When the compressor body 100 is operating in rated cooling or intermediate cooling mode, the operating current of the compressor body 100 is equal to or less than the preset current value. At this time, the stationary iron core 243 is less affected by the magnetic field generated by the coil 244, and the return spring 247 can drive the moving iron core 245 to switch from the open state to the sealed state, so as to seal the first oil return hole 231.

[0053] In this application, the housing 210 is provided with a wiring terminal 270, and the sealing member 240 is electrically connected to the main body 100 through the wiring terminal 270. A sealing structure is provided between the wiring terminal 270 and the side wall of the housing 210. Through the above arrangement, wiring of the sealing member 240 can be achieved, while ensuring the sealing of the liquid storage chamber 220, preventing refrigerant leakage within the liquid storage chamber 220, and ensuring the stability of the compressor assembly operation.

[0054] In this application, the first return oil hole 231 can be set to one.

[0055] In this application, multiple first oil return holes 231 can be provided, and these multiple first oil return holes 231 are arranged at circumferential intervals on the outer wall of the intake pipe 230. Correspondingly, multiple sealing members 240 are also provided, with each sealing member 240 corresponding to one of the multiple first oil return holes 231. The multiple sealing members 240 can switch between an open state and a blocked state. Specifically, there can be 3, 4, or 5 first oil return holes 231.

[0056] In this application, multiple first oil return holes 231 can be provided, and these multiple first oil return holes 231 are spaced apart along the extension direction of the intake pipe 230. Correspondingly, multiple sealing members 240 are also provided, with each sealing member 240 corresponding to one of the multiple first oil return holes 231. The multiple sealing members 240 can switch between an open state and a sealed state. Specifically, there can be 3, 4, or 5 first oil return holes 231.

[0057] In this application, the first oil return hole 231 is located on the side of the intake pipe 230 near the bottom of the liquid storage chamber 220, but not at the bottom of the liquid storage chamber 220. Thus, in the liquid storage chamber 220, when the liquid level of the mixture of liquid refrigerant and refrigeration oil does not reach the position of the first oil return hole 231, the mixture of liquid refrigerant and refrigeration oil has a certain storage space. When the liquid level of the mixture of liquid refrigerant and refrigeration oil reaches the position of the first oil return hole 231, the mixture of liquid refrigerant and refrigeration oil can enter the intake pipe 230 through the first oil return hole 231 and flow back to the compressor body 100.

[0058] In a specific embodiment of this application, the distance between the first oil return hole 231 and the bottom of the liquid storage chamber 220 can be set to less than or equal to 40mm. When the distance between the first oil return hole 231 and the bottom of the liquid storage chamber 220 is greater than 40mm, the storage space in the liquid storage chamber 220 is too large. Even if the sealing member 240 is in the open state, a lot of refrigerant will still be unable to be discharged from the liquid storage chamber 220, which cannot meet the refrigerant demand of the air conditioning system in a high-power circulation state.

[0059] Furthermore, a second oil return hole 232 is also provided on the intake pipe 230, which is positioned above the first oil return hole 231 along the height direction of the liquid storage chamber 220. With this configuration, when the air conditioning system is in low-temperature intermediate cooling or rated cooling condition for an extended period, the sealing component 240 remains in a blocked state. Excessive accumulation of refrigerant oil in the liquid storage chamber 220 can easily cause compressor oil shortage. By providing the second oil return hole 232, excessive oil accumulation inside the distributor 200 can be prevented. When the mixture of liquid refrigerant and refrigerant oil reaches the second oil return hole 232, the refrigerant oil, due to its lower density than the liquid refrigerant, will float above the liquid refrigerant. When the level of the refrigerant oil is flush with the second oil return hole 232, the refrigerant oil can flow back to the compressor without being controlled by the sealing component 240, reducing compressor wear.

[0060] In this application, the distributor 200 further includes a partition 280 with a through hole through which an air inlet pipe 230 passes. The partition 280 divides the liquid storage chamber 220 into a first chamber and a second chamber, which are distributed vertically. The first chamber is located above the second chamber. The air inlet pipe 230 has an inlet end and an outlet end that are arranged opposite to each other. The outlet end is located in the first chamber, and the first oil return hole 231 is located in the second chamber. Through the above arrangement, the partition 280 can prevent the air intake of the distributor 200 from disturbing the flow of fluid at the first oil return hole 231 and affecting the reflux effect of the distributor 200, thus ensuring the stability of the distributor 200 during use.

[0061] refer to Figure 9 As shown, a wire hole 281 is provided on the partition plate 280. With the above-mentioned arrangement, the wire hole 281 can facilitate the wiring of the sealing component 240 in the liquid storage chamber 220, and facilitate the installation of the sealing component 240.

[0062] According to another aspect of this application, an air conditioner is provided, the air conditioner having a compressor assembly, the compressor assembly being the compressor assembly described above.

[0063] According to the technical solution of this application, the compressor assembly has a body 100 and a distributor 200. When the air conditioner is in low-temperature heating or maximum cooling mode, the compressor body 100 will operate at a higher frequency. At this time, the operating current of the compressor body 100 will be greater than the operating current in rated cooling or low-temperature intermediate cooling mode. In this application, a preset current value is set. When the operating current of the compressor body 100 is greater than the preset current value, it indicates that the air conditioner is in low-temperature heating or maximum cooling mode. At this time, the sealing member 240 can be switched to the open state. The liquid refrigerant in the liquid receiver 220 can flow back to the compressor body 100 through the first oil return hole 231. With less residual liquid in the liquid receiver 220, the refrigerant circulation within the air conditioner increases, meeting the system's circulation requirements. When the operating current of the compressor body 100 is less than or equal to a preset current value, it indicates that the air conditioner is in rated cooling or low-temperature intermediate cooling conditions. In this case, the sealing component 240 can block the first oil return hole 231. At this time, the amount of refrigerant stored in the liquid receiver 220 is larger, and the refrigerant circulation within the air conditioner is smaller, resulting in better energy efficiency matching. Through the technical solution of this application, the compressor assembly can match the current operating state and overall energy efficiency of the air conditioner, preventing insufficient or excessive refrigerant return, which would increase the air conditioner's energy consumption and meet the air conditioner's usage needs under different operating conditions.

[0064] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0065] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0066] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0067] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0068] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0069] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A compressor assembly, characterized in that, The compressor assembly includes a body (100) and a distributor (200), the distributor (200) being disposed on the body (100), and the distributor (200) comprising: The housing (210) has a liquid storage chamber (220); An air inlet pipe (230) is provided, one end of which is located in the liquid storage chamber (220), and the other end of which is connected to the main body (100). A first oil return hole (231) is provided on the side wall of the air inlet pipe (230) located in the liquid storage chamber (220). The liquid in the liquid storage chamber (220) can flow back to the compressor through the first oil return hole (231). A sealing element (240) is disposed in the liquid storage chamber (220) and corresponding to the first oil return hole (231). The sealing element (240) has an open state and a blocked state. When the sealing element (240) is in the open state, the first oil return hole (231) is connected to the liquid storage chamber (220). When the sealing element (240) is in the blocked state, the sealing element (240) blocks the first oil return hole (231). The sealing element (240) is connected in series with the power supply circuit of the main body (100). When the operating current of the compressor is greater than the preset current value, the sealing element (240) is in the open state. When the operating current of the compressor is less than or equal to the preset current value, the sealing element (240) switches to the blocked state.

2. The compressor assembly according to claim 1, characterized in that, The sealing component (240) has a connecting end and a sealing end arranged opposite to each other. The connecting end of the sealing component (240) is fixedly connected to the side wall of the air intake pipe (230). The sealing component (240) includes a first metal sheet (241) and a second metal sheet (242) stacked along the thickness direction. The first metal sheet (241) is arranged close to the side wall of the air intake pipe (230). The thermal expansion coefficient of the first metal sheet (241) is greater than that of the second metal sheet (242). When the operating current of the compressor is greater than the preset current value, the first metal sheet (241) and the second metal sheet (242) are heated and expanded, causing the sealing end to bend away from the first oil return hole (231), so that the sealing component (240) switches to the open state.

3. The compressor assembly according to claim 1, characterized in that, The sealing element (240) includes: A stationary iron core (243) having a receiving cavity; A coil (244) is wound on the outer wall of the stationary iron core (243), and the coil (244) is connected in series with the power supply circuit of the body (100). A movable iron core (245) is inserted into the receiving cavity; A sealing element (246) is disposed at one end of the moving iron core (245) facing the first oil return hole (231). When the sealing element (240) is in the sealing state, the sealing element (246) is in a sealing fit with the first oil return hole (231). A reset spring (247) is provided, one end of which is connected to the seal (246), and the other end of which is connected to the stationary iron core (243). The reset spring (247) can provide the moving iron core (245) with an elastic force to switch from the open state to the blocked state. When the operating current of the compressor is greater than the preset current value, the coil (244) and the stationary iron core (243) cooperate to generate a magnetic field, causing the moving iron core (245) to overcome the elastic force of the reset spring (247) and move away from the first oil return hole (231), so that the blocking member (240) switches to the open state.

4. The compressor assembly according to claim 2, characterized in that, An insulating gasket (250) is provided between the connecting end and the side wall of the air intake pipe (230), and a sealing gasket (260) is provided between the sealing end and the side wall of the air intake pipe (230).

5. The compressor assembly according to claim 2, characterized in that, The outer surfaces of the first metal sheet (241) and the second metal sheet (242) are provided with an insulating coating.

6. The compressor assembly according to claim 1, characterized in that, The housing (210) is provided with a terminal block (270), and the sealing member (240) is electrically connected to the body (100) through the terminal block (270). The terminal block (270) and the side wall of the housing (210) have a sealing structure.

7. The compressor assembly according to claim 1, characterized in that, The air inlet pipe (230) is also provided with a second oil return hole (232), which is located above the first oil return hole (231) along the height direction of the liquid storage chamber (220).

8. The compressor assembly according to claim 1, characterized in that, The liquid separator (200) also includes a partition (280) having a through hole, and the air inlet pipe (230) passing through the through hole. The partition (280) divides the liquid storage chamber (220) into a first chamber and a second chamber distributed vertically. The first chamber is located above the second chamber. The air inlet pipe (230) has an inlet end and an outlet end arranged opposite to each other. The outlet end is located in the first chamber. The first oil return hole (231) is located in the second chamber.

9. The compressor assembly according to claim 8, characterized in that, The partition (280) is provided with a wire hole (281).

10. An air conditioner, characterized in that, The air conditioner has a compressor assembly, which is the compressor assembly according to any one of claims 1 to 9.

Citation Information

Patent Citations

  • Compressor assembly and air conditioner

    CN110274413A

  • Liquid separator, compressor and air conditioning system

    CN116792982A