One-way flow mechanism and compressor having the same

Abstract

The application discloses a one-way flow mechanism and an oil blocking device and a compressor with the same. The one-way flow mechanism comprises a component body provided with a cavity, an upper side air hole arranged on the upper side of the component body, a lower side air hole arranged with a lower side, and a valve core assembly arranged in the cavity of the component body and capable of unidirectionally closing the lower side air hole of the component body. The one-way flow mechanism is arranged on the upper end surface of the motor rotor, and the oil-gas mixed fluid in the motor rotor can be controlled to flow in a single direction towards the oil blocking structure, so that the oil-gas separation effect is enhanced, the amount of refrigeration oil discharged from the compressor is reduced, and the influence of the reduction of the refrigeration oil on the heat exchange efficiency of the air conditioning system is reduced. The refrigeration energy efficiency of the air conditioning system can be improved, and the reliability of the operation of the compressor is ensured.

Description

Technical Field

[0001] This invention relates to the technical field of refrigeration equipment, and more particularly to a rolling rotor compressor for a household air conditioning system. Background Technology

[0002] For rolling rotor compressors used in residential air conditioning systems, optimized design is often required to achieve better system performance matching and reduce the negative impact of compressor-discharged refrigerant oil on system heat exchange efficiency. Therefore, there is a need in this field to specifically optimize the oil discharge rate of rolling rotor compressors to reduce the amount of refrigerant oil discharged during operation after mixing with the refrigerant.

[0003] like Figure 1 , Figure 3 As shown, a typical air conditioning system's rotary compressor includes a distributor 1, a pump body assembly 2, a motor stator 3, a motor rotor 4, and a housing 5. The pump body assembly 2 is composed of a lower cover 2.1, a pump body 2.2, an upper cover 2.3, and a silencer 2.4 connected in sequence. The silencer 2.4 is used to eliminate exhaust pulsation noise. A roller shaft 2.5 inside the pump body 2.2 extends upwards and serves as the motor shaft; that is, the roller shaft 2.5 and the motor shaft are the same shaft. The motor rotor 4 and the motor stator 3, fixed to the inner wall of the housing 5, are located outside the motor shaft. The motor rotor 4 consists of a main rotor balance block 4.1, a rotor core 4.2, an oil baffle 4.3, an oil baffle component 4.4, and a secondary rotor balance block 4.5. The bottom of the distributor 1, located outside the compressor, communicates with the inner cavity of the compressor's pump body 2.2.

[0004] When the compressor is running, the distributor 1 supplies refrigerant to the pump assembly. The gaseous refrigerant, compressed by the compressor pump assembly 2, carries tiny mists of refrigeration oil and exits from the top cover 2.3 of the pump assembly 2. After being silenced by the muffler 2.4, it is discharged and then flows axially through the motor stator and rotor 4 and finally exits from the top of the compressor.

[0005] The exhaust is discharged from port 7 of the compressor, completing the compressor's working process.

[0006] During this process, some of the atomized refrigeration oil carried in the gaseous refrigerant is discharged from the compressor along with the refrigerant.

[0007] Meanwhile, a portion of the tiny, mist-like refrigerant oil accumulates on the inner wall of the outer casing 5, forming larger oil droplets, and flows downwards back into the oil sump 8 below the casing for continued use. If the compressor does not have various forms of oil-gas separation structures, the amount of refrigerant oil discharged from the compressor during operation will increase, often resulting in poor system performance. The discharge of refrigerant oil also causes a drop in the refrigerant oil level in the compressor oil sump 8, leading to insufficient refrigerant oil supply to mechanical components such as the submerged pump assembly 2, reduced lubrication and cooling efficiency, and greater wear on relatively moving mechanical parts, ultimately reducing the compressor's reliability and lifespan.

[0008] To reduce the amount of refrigerant oil discharged from the compressor along with the refrigerant and its adverse effects on the heat exchange of the air conditioning system, an oil baffle device for oil-gas separation is typically installed at the upper end of the motor rotor 4. For example... Figures 2-5 As shown, the oil-blocking device includes an oil-blocking seat 4.3 with a through hole on the upper end face of the motor rotor 4, and an oil-blocking component 4.4 connected to the motor shaft end. The oil-blocking component 4.4 is axially spaced a certain distance from the oil-blocking seat 4.3. When the motor rotor 4 and the oil-blocking device are axially connected as one unit, the axially arranged oil and gas passage 4.6 in the motor rotor 4 communicates with the through hole of the oil-blocking seat 4.3.

[0009] like Figure 2 As shown, during operation, the fluid mixture of gaseous refrigerant and atomized refrigerant oil, compressed by the compressor pump body assembly 2, is discharged through the silencer 2.4. It then flows axially through the oil-gas passages 4.6 of the motor rotor 4 and contacts the oil baffle member 4.4 above it through the through-hole of the oil baffle seat 4.3. The oil baffle member 4.4, rotating with the motor shaft 2.5, causes the rising atomized refrigerant oil to condense into oil droplets on its wall. Under the centrifugal force of the rotating oil baffle member 4.4, the droplets splash and collect on the inner wall of the compressor outer body 5, further condensing into larger oil droplets. These droplets then flow downwards along the inner wall of the outer casing back into the oil sump 8 at the bottom of the compressor. Through the cooperation of the oil baffle seat 4.3 and the oil baffle member 4.4 located at the upper end of the motor rotor 4, the refrigerant oil in the mixture of gaseous refrigerant and atomized refrigerant oil can be separated and returned to the oil sump 8 for continued use. This maintains the required refrigerant oil level for lubrication and cooling of the mechanical friction pairs of the pump body assembly 2, while reducing the amount of refrigerant oil discharged by the compressor, thus mitigating the adverse effects on the heat exchanger of the air conditioning system. This improves the cooling efficiency of the air conditioning system and ensures the reliability of the compressor operation.

[0010] However, to ensure the balance of the rotational motion of the pump body assembly 2 and the motor rotor 4, a main rotor balance block 4.1 is provided on the lower end face of the motor rotor 4, and a secondary rotor balance block 4.5 is provided on the upper end face of the motor rotor 4. During the rotational motion of the pump body assembly 2 and the motor rotor 4, the main rotor balance block 4.1 and the secondary rotor balance block 4.5 will generate pressure pulsations in the upper and lower chambers of the motor rotor 4, causing the flow direction and velocity of the refrigerant entering and exiting the motor rotor 4 to be in a pulsating state. When the pressure pulsation in the upper chamber of the motor rotor 4 is smaller and the pressure pulsation in the lower chamber is larger, it will promote the flow of gaseous refrigerant and atomized refrigeration oil towards the oil baffle member 4.4, that is, upward flow; while when the pressure pulsation in the upper chamber of the motor rotor 4 is larger and the pressure pulsation in the lower chamber is smaller, the gaseous refrigerant and atomized refrigeration oil will flow in the opposite direction to the oil baffle member 4.4, that is, downward flow. When the gaseous refrigerant and atomized refrigeration oil flow in opposite directions, they interfere with and prevent the forward flow of the gaseous refrigerant and atomized refrigeration oil. This further reduces the speed and flow rate of the gaseous refrigerant and atomized refrigeration oil towards the oil baffle component 4.4, thereby reducing the oil-gas separation effect of the oil baffle component 4.4 and having an adverse impact on the operation of the air conditioning system.

[0011] Therefore, overcoming the limitation that the compressed refrigerant fluid cannot flow in a single direction toward the oil baffle is a problem that needs to be solved in this field. Summary of the Invention

[0012] To address the technical problem that refrigerant fluid compressed by a compressor cannot flow completely in the unidirectional direction of an oil-blocking component, this invention provides a one-way flow mechanism, an oil-blocking device with the one-way flow mechanism, and a compressor with the oil-blocking device. The one-way flow mechanism effectively prevents the refrigerant fluid from moving in the opposite direction to the oil-blocking device, maximizing the oil-gas separation effect of the oil-blocking device, reducing the discharge of refrigerant oil from the compressor, and improving the compressor's refrigeration efficiency.

[0013] The present invention provides a one-way flow mechanism, characterized in that it includes a component body with a cavity, and vent holes respectively provided on the upper and lower sides of the component body. The cavity of the component body is provided with a valve core assembly that can unidirectionally close the vent holes on the lower side of the component body downward.

[0014] Preferably, the valve core assembly includes a valve chip capable of sealing the vent hole on the lower side of the component body, and a spring disposed between the valve chip and the upper side of the cavity of the component body.

[0015] Preferably, the component body is manufactured in two parts, including a base with a vent hole on the lower side and a base cover with a vent hole on the upper side; when the base cover and the base are closed, there is a cavity between the base cover and the base.

[0016] Preferably, the unidirectional flow mechanism is provided with a connecting structure, the connecting structure including a component disposed at the bottom.

[0017] The connecting hole post on the upper side of the seat cover and the connecting hole provided on the base, the connecting hole post having a through-hole

[0018] The hole corresponds to the connecting hole described above.

[0019] The present invention provides an oil-blocking device, characterized in that it includes the aforementioned one-way flow mechanism,

[0020] An oil baffle component connected above the one-way flow mechanism.

[0021] Preferably, the lower surface of the oil baffle is provided with a support platform that maintains an axial distance from the one-way flow mechanism, and the axial height of the support platform is equal to the axial height of the connecting hole column of the one-way flow mechanism.

[0022] Preferably, the oil baffle is a rotary oil baffle plate, with an oil passage hole on its upwardly bent outer edge, and an installation hole on the bottom surface of the oil baffle plate corresponding to the connection hole post of the one-way flow mechanism.

[0023] Preferably, the radial position of the vent hole on the upper side of the one-way flow mechanism corresponds to the outer diameter of the oil baffle.

[0024] The present invention also provides a compressor, characterized in that it includes the oil baffle device integrally connected to the upper end of the motor rotor; the vent hole on the lower side of the one-way flow mechanism corresponds to the oil and gas passage of the motor rotor.

[0025] Preferably, the oil-blocking device is axially connected to the motor rotor as one unit through the through hole of the connecting hole column of the one-way flow mechanism and the corresponding connecting hole on the oil-blocking component.

[0026] This invention features a one-way flow mechanism at the upper end of the motor rotor. When the refrigerant fluid flowing through the oil-gas passages of the motor rotor towards the oil-blocking device, the fluid passes through the vent on the lower side of the one-way flow mechanism, opens the valve chip in the internal cavity, and compresses the spring to open the flow channel. This allows the fluid to exit through the vent on the upper side, where it is ultimately separated from the gaseous refrigerant by the rotating oil-blocking component, condensing and agglomerating. The centrifugal force generated by the oil-blocking component then throws the refrigerant droplets towards the inner wall of the compressor casing, before flowing downwards back to the oil sump at the bottom of the compressor. Conversely, when there is a pulsating pressure in the upper cavity of the motor rotor (higher pressure than lower pressure), the fluid moves in the opposite direction to the oil-blocking component, i.e., downwards. The valve chip in the cavity of the one-way flow mechanism closes the vent on the lower side of the mechanism under the action of the spring, preventing the fluid from moving downwards. The one-way flow mechanism functions to open when the fluid flows towards the oil-blocking component and close when the fluid flows in the opposite direction. This means that even when the compressor operates at high speed and with large pressure pulsations, it can still ensure that more of the mixed fluid of gaseous refrigerant and atomized refrigeration oil in the oil-gas passages of the motor rotor moves in one direction toward the desired oil-blocking component, thereby improving the oil-blocking effect of the oil-blocking component and reducing the compressor's oil discharge rate. This makes the air conditioning system using this type of compressor more energy efficient, ensures the liquid level in the oil sump at the bottom of the compressor, and improves reliability. Attached Figure Description

[0027] Figure 1 This is a cross-sectional view of a rolling rotor compressor.

[0028] Figure 2 This is a schematic diagram showing the oil-gas flow and oil-gas separation direction during the operation of a rolling rotor compressor.

[0029] Figure 3 A schematic diagram of the components inside a rolling rotor compressor.

[0030] Figure 4 This is a top view of the compressor's motor rotor;

[0031] Figure 5 This is a top view of the oil baffle inside an existing compressor.

[0032] Figure 6 A schematic diagram of the inner core of a rolling rotor compressor having the unidirectional flow mechanism provided by the present invention;

[0033] Figure 7 This is a cross-sectional view of an embodiment of a unidirectional flow mechanism provided by the present invention;

[0034] Figure 8 for Figure 7 Top view.

[0035] In the picture:

[0036] 1-Dispenser;

[0037] 2-Pump body assembly;

[0038] 2.1-Lower cover; 2.2-Pump body; 2.3-Upper cover; 2.4-Silencer; 2.5-Roller shaft;

[0039] 3-Motor stator;

[0040] 4-Motor rotor;

[0041] 4.1-Rotor main balance block; 4.2-Rotor core; 4.3-Oil baffle; 4.4-Oil baffle component;

[0042] 4.5 - Rotor pair balance block; 4.6 - Oil and gas passage; 4.7 - Shaft hole; 4.8 - Through hole;

[0043] 5-Outer shell;

[0044] 6-One-way circulation mechanism;

[0045] 6.1-Base; 6.2-Valve chip; 6.3-Spring; 6.4-Base cover; 6.5-Ventilation hole on the upper side;

[0046] 6.6 - Vent hole on the lower side; 6.7 - Connecting post; 6.8 - Connecting hole;

[0047] 7-Exhaust port;

[0048] 8-Oil pool. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the invention and do not constitute a limitation thereof.

[0050] Please refer to Figure 7 , Figure 8 As shown, an embodiment of the one-way flow mechanism 6 provided by the present invention includes a component body with a cavity, an upper vent hole 6.5 on the upper end face of the component body, and a lower vent hole 6.6 on the lower end face of the component body. Both the upper and lower vent holes communicate with the cavity of the component body. A valve core assembly is provided in the cavity of the component body, capable of unidirectionally closing the lower vent hole 6.6 of the component body downwards.

[0051] like Figure 7 , Figure 8As shown, in this embodiment, the valve core assembly includes a valve chip 6.2 capable of sealing the vent holes 6.6 on the lower side of the component body, and a spring 6.3 disposed between the valve chip 6.2 and the upper side of the component body cavity. That is, when the valve chip 6.2 is subjected to downward pressure, it moves downward and closes all the vent holes 6.6 on the lower side of the one-way flow mechanism 6. When the valve chip 6.2 is subjected to upward pressure, it moves upward and opens all the vent holes 6.6 on the lower side, while simultaneously all the vent holes 6.5 on the upper side of the component body are also fully opened. In other words, the one-way flow mechanism 6 can implement upward one-way opening control.

[0052] like Figure 7 , Figure 8 As shown, the component body of this embodiment is manufactured in parts, including a base 6.1 with a vent hole 6.6 on the lower side and a base cover 6.4 with a vent hole 6.5 on the upper side. When the base cover 6.4 is closed with the base 6.1, there is a cavity between the base cover and the base. Depending on the needs, the component body of this embodiment can also be manufactured as a single piece, such as through precision casting. As long as the component body has a cavity of a certain size and can accommodate the valve core assembly, it is acceptable. A connecting structure is provided on one side of the one-way flow mechanism 6. This connecting structure includes a connecting hole post 6.7 on the upper side of the base cover 6.4 and a connecting hole 6.8 on the base 6.1. The through holes of the connecting hole 6.8 and the connecting hole post 6.7 are correspondingly connected and are used to connect with the motor rotor 4 and the oil baffle structure 4.4. Therefore, the through holes of the connecting hole 6.8 and the connecting hole post 6.7... None of them are connected to the cavity of the one-way flow mechanism 6. .

[0053] like Figure 7As shown, the one-way flow mechanism 6 provided by the present invention has an internal cavity that serves as a fluid channel and can also house a valve core assembly to effectively control the one-way flow mechanism 6 to open in one direction. The valve core assembly can be flexibly selected as needed; different shaped components can be chosen, such as spherical or cylindrical shapes, as long as they can produce a one-way sealing effect. In this embodiment, the valve core assembly consists of a valve chip 6.2 and a spring 6.3. The valve chip has a sheet-like structure, which easily fits and seals with the lower side of the cavity in the one-way flow mechanism 6, and also easily seals the multiple vent holes arranged in a ring on the lower side of the cavity. The spring is used as a reset component for the movement of the valve chip, ensuring reliable sealing and convenient installation. When the component body of the one-way flow mechanism 6 adopts a split structure, the base cover 6.4 and the base 6.1 can be stamped, making preparation and installation convenient and adaptable to the processing of components of different sizes. A connecting hole post 6.7 with a certain axial height is provided on the upper side of the base cover 6.4 of the one-way flow mechanism 6. In addition to being used for connection, it can also serve as an isolation device, so that the upper side of the one-way flow mechanism 6 is kept at a certain distance from the oil baffle 4.4 above, so as to separate oil and gas.

[0054] like Figure 6 , Figure 7 , Figure 8 As shown, an embodiment of an oil-blocking device provided by the present invention includes a one-way flow mechanism 6 and an oil-blocking component 4.4 connected above the one-way flow mechanism 6. In this embodiment, the lower surface of the oil-blocking component 4.4 is provided with a support platform that maintains an axial distance from the one-way flow mechanism 6. The axial height of the support platform is equal to the axial height of the connecting hole post 6.7 on the upper side of the one-way flow mechanism. The oil-blocking component 4.4 is a rotary oil-blocking disc. The outer edge of the oil-blocking disc is bent upward, and oil passage holes are provided around the outer edge. The bottom surface of the oil-blocking disc is provided with mounting holes corresponding to the connecting hole post 6.7 of the one-way flow mechanism 6. The radial position of the vent hole 6.5 on the upper side of the one-way flow mechanism 6 corresponds to the outer diameter of the oil-blocking disc.

[0055] The oil-blocking device provided by this invention replaces the existing oil-blocking seat 4.3 with a one-way flow mechanism 6, ensuring that the oil and gas fluid can only flow in one direction, thereby maximizing the efficiency of oil-gas separation. A support platform with the same axial height as the connecting hole post 6.7 on the upper side of the one-way flow mechanism 6 is provided on the lower surface of the oil-blocking member 4.4. During installation, this support platform not only maintains a certain axial distance between the oil-blocking member 4.4 and the one-way flow mechanism 6, but also forms a supporting fit with the connecting hole post 6.7, ensuring a stable and reliable connection between the oil-blocking member 4.4 and the one-way flow mechanism 6. The oil-blocking member 4.4 is made into a rotary oil-blocking disc with its outer edge bent upwards. Oil passage holes are provided around the outer edge, allowing for the accumulation of mist-like refrigerant oil over a large area when the oil-blocking member 4.4 rotates, thus improving the oil-gas separation efficiency. Furthermore, it facilitates the placement of a counterweight within the oil-blocking disc to achieve dynamic balance of the motor rotor 4. In particular, the upper vent 6.5, which is annularly arranged on the upper side of the one-way flow mechanism 6, is positioned as radially as possible to correspond to the outer diameter of the oil baffle plate. During operation, this allows the oil and gas fluid to be distributed on the outer circumference of the oil baffle member 4.4, where the rotational linear velocity is higher, thus promoting the oil and gas separation effect of the oil baffle member 4.4. Alternatively, the vent can be directly arranged radially.

[0056] Please refer to Figure 1 A conventional air conditioning system's rotary compressor includes a distributor 1, a pump body assembly 2, a motor stator 3, a motor rotor 4, and a housing 5. The pump body assembly 2 is composed of a lower cover 2.1, a pump body 2.2, an upper cover 2.3, and a silencer 2.4 connected sequentially. The silencer 2.4 is used to eliminate exhaust pulsation noise. A roller shaft 2.5 inside the pump body 2.2 passes upward through the shaft hole 4.7 of the motor rotor 4 and serves as the motor shaft; that is, the roller shaft 2.5 and the motor shaft are the same shaft. The motor rotor 4 and the corresponding motor stator 3, fixed to the inner wall of the housing 5, are located outside the motor shaft. The motor rotor 4 consists of a main rotor balance block 4.1, a rotor core 4.2, an oil baffle 4.3, an oil baffle component 4.4, and a secondary rotor balance block 4.5. The bottom of the distributor 1, located outside the compressor, communicates with the inner cavity of the compressor's pump body 2.2.

[0057] like Figures 2-5As shown, to reduce the amount of refrigerant oil discharged from the compressor along with the refrigerant and its adverse effects on the heat exchange of the air conditioning system, an oil-blocking device for oil-gas separation is installed at the upper end of the motor rotor 4. This oil-blocking device includes an oil-blocking seat 4.3 with a through hole 4.8 on the upper end face of the motor rotor 4, and an oil-blocking member 4.4 connected to the end face of the motor shaft, located above the oil-blocking seat. During operation, the mixture of gaseous refrigerant and atomized refrigerant oil flowing through the oil-gas passages 4.6 of the motor rotor 4 passes through the through hole 4.8 of the oil-blocking seat 4.3 and collides with the oil-blocking member 4.4 above, thereby separating the refrigerant oil from the mixture and returning it to the oil sump 8.

[0058] However, to ensure the balance of the rotational motion of the pump body assembly 2 and the motor rotor 4, a rotor auxiliary balance block 4.5 and a rotor main balance block 4.1 are respectively provided on the upper and lower end faces of the motor rotor 4. During operation, the upper and lower balance blocks will generate pressure pulsations in the upper and lower chambers of the motor rotor 4, causing the mixed fluid of gaseous refrigerant and atomized refrigeration oil to flow in a non-unidirectional direction. Therefore, it will reduce the speed and flow rate of the mixed fluid flowing in a unidirectional direction toward the oil baffle member 4.4, thereby reducing the oil-gas separation effect of the oil baffle member 4.4.

[0059] To overcome the technical problem that existing oil-blocking devices cannot ensure fluid flow in a single direction towards the oil-blocking component, resulting in low oil-gas separation efficiency, a new oil-blocking device is provided, wherein the unidirectional flow mechanism 6 provided by this invention replaces the existing oil-blocking seat 4.3. Figure 6 , Figure 7 and Figure 8 As shown, the oil-blocking device is integrally connected to the upper end face of the motor rotor 4, and the vent 6.6 on the lower side of the one-way flow mechanism 6 is correspondingly connected to the oil and gas channel 4.6 of the motor rotor 4. Furthermore, the oil-blocking device is axially connected to the motor rotor 4 through the through hole of the connecting post 6.7 of the one-way flow mechanism 6, the connecting hole 6.8 of the base, and the corresponding connecting hole on the oil-blocking component 4.4. Meanwhile, the rotor auxiliary balance block 4 is located on the right side of the oil-blocking plate, and the rotor main balance block 4.1 is located on the left side of the lower end face of the motor rotor 4.

[0060] like Figure 6 , Figure 7In this embodiment, the roller shaft 2.5 rotates, and the mixed fluid, compressed by the pump assembly 2, is discharged after being silenced by the muffler 2.4. The discharged mixed fluid flows through the motor rotor 4 and impacts the one-way flow mechanism 6 above. The built-in valve chip 6.2 was originally in contact with the inner surface of the base 6.1 under the pressure of the back spring 6.3, sealing the vent hole 6.6 on the lower side of the base 6.1. However, under the upward impact of the mixed fluid, the valve chip 6.2 overcomes the force of the spring 6.3 and moves upward, opening the vent hole 6.6 of the base 6.1, thus opening the flow channel. After the mixed fluid enters the cavity of the one-way flow mechanism 6, it is discharged through the upper vent 6.5 on the base cover 6.4, and then impacts the rotating oil baffle 4.4 above. The atomized refrigerant oil in the mixed fluid slowly condenses into large oil droplets on the inner and outer walls of the oil baffle 4.4. Then, under the centrifugal force of the rotating oil baffle 4.4, the oil droplets are thrown onto the inner wall of the compressor housing 5, where they condense into large oil droplets and flow back along the housing 5 to the oil sump 8 at the bottom of the compressor. When pressure pulsation occurs in the upper and lower chambers of the motor rotor 4, the mixed fluid flows in the opposite direction to the oil baffle 4.4, i.e., downward. At this time, the valve chip 6.2 in the one-way flow mechanism 6 moves downward and adheres tightly to the inner surface of the base 6.1 under the combined action of the mixed fluid pressure and the spring 6.3, and seals the lower vent 6.6 on the base 6.1, thereby preventing the mixed fluid from flowing downward and eliminating the obstruction of the reverse fluid to the forward fluid flow. The unidirectional flow mechanism 6 provided by this invention controls the flow direction of the refrigerant gas and atomized refrigeration oil mixture inside the motor rotor, increasing the flow rate in the ideal direction, enhancing the oil-gas separation effect of the oil-blocking component 4.4, reducing the amount of refrigeration oil discharged by the compressor, and mitigating the impact of reduced refrigeration oil on the heat exchange efficiency of the air conditioning system. This can improve the cooling efficiency of the air conditioning system and ensure the reliability of compressor operation.

[0061] It should be noted that the terminology used in this specification is for describing specific embodiments only and is not intended to limit the invention. Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the technical features and steps set forth in these embodiments do not limit the scope of protection of the invention. Techniques, methods, and devices known to those skilled in the art are not discussed in detail here, but where appropriate, such techniques, methods, and devices should be considered part of this specification. Any specific values ​​in this specification should be interpreted as merely exemplary and do not constitute a limitation of the invention.

[0062] For ease of description, the terms used in the specification to describe position, such as "above", "to the left", "in front", etc., are only used to describe the spatial positional relationship between a component and other components in the embodiment shown in the figure. When the position of the component is different, the relative position will change. Therefore, the positional relationship of the embodiment in the figure should not be construed as limiting the present invention.

[0063] Furthermore, it should be noted that the use of terms such as "first" and "second" in the specification is merely for distinguishing similar components and does not imply a sequential order; therefore, it should not be construed as limiting the scope of protection of this invention. The above description is only a specific embodiment of this invention. It should be pointed out that...

[0064] Any modifications, equivalent substitutions, and variations made within the spirit and framework of this invention should be included within the scope of protection of this invention.

Claims

1. A compressor, comprising a motor rotor and an oil baffle device, characterized in that, The oil-blocking device includes a one-way flow mechanism and an oil-blocking component connected above it. The one-way flow mechanism includes a component body with a cavity, an upper vent hole on the upper side of the component body, and a lower vent hole on the lower side. A valve core assembly capable of closing the lower vent hole of the component body downwards is provided in the cavity of the component body. The one-way flow mechanism has a connecting structure, which includes a connecting post on the upper side of the component body and a connecting hole on the lower side of the component body. The through hole in the connecting post corresponds to the connecting hole. The lower surface of the oil-blocking component has a support platform that maintains an axial distance from the one-way flow mechanism. The oil-blocking device is integrally connected to the upper end of the motor rotor, and the lower vent hole corresponds to the oil and gas passage of the motor rotor. The oil-blocking device is axially connected to the motor rotor through the through hole of the connecting post of the one-way flow mechanism, the connecting hole, and the corresponding mounting hole on the oil-blocking component.

2. The compressor as described in claim 1, characterized in that, The valve core assembly includes a valve chip that can cover the vent hole on the lower side of the component body, and a spring disposed between the valve chip and the upper side of the cavity of the component body.

3. The compressor as described in claim 1, characterized in that, The main body of the component is manufactured in two parts, including a base with a vent hole on the lower side and a base cover with a vent hole on the upper side. When the base cover is closed with the base, there is a cavity between the base cover and the base.

4. The compressor as described in claim 1, characterized in that, The axial height of the support platform is equal to the axial height of the connecting hole column of the one-way flow mechanism.

5. The compressor as described in claim 1, characterized in that, The oil baffle is a rotary oil baffle plate with an oil passage hole on its upwardly bent outer edge. The bottom surface of the oil baffle plate has a mounting hole corresponding to the connecting hole post of the one-way flow mechanism.

6. The compressor as claimed in claim 1, characterized in that, The radial position of the vent hole on the upper side of the one-way flow mechanism corresponds to the outer diameter of the oil baffle component.

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