Scroll compressor and air conditioner

Abstract

The present disclosure provides a scroll compressor and an air conditioner. The scroll compressor includes: an oil pump structure, an oil suction assembly, an oil guide part, and an oil pool. The oil pool is located inside the bottom of the scroll compressor. The oil suction assembly is arranged in the oil pool. The material density of the oil suction assembly is greater than the density of the lubricating oil and less than the density of the refrigerant, so that the oil suction assembly is suspended on the liquid surface of the refrigerant. One end of the oil guide part is connected to the oil suction assembly, and the other end is connected to the inside of the oil pump structure. The oil suction assembly can absorb lubricating oil from the oil pool and guide it to the oil pump structure through the oil guide part. According to the present disclosure, it can be ensured that the oil pump sucks lubricating oil instead of liquid refrigerant during low-temperature startup, avoiding aggravated wear of contact parts such as bearings, achieving low-temperature startup lubrication, and effectively improving the low-temperature startup performance and reliability of the compressor.

Description

Technical Field

[0001] The present disclosure relates to the technical field of compressors, and in particular to a scroll compressor and an air conditioner. Background Art

[0002] Scroll compressors have the characteristics of simple structure, small size, light weight, low noise, high mechanical efficiency and stable operation. In order to ensure lubrication and cooling, high-speed scroll compressors usually install an oil pump at the end of the rotating shaft to extract the lubricating oil accumulated in the oil pool at the bottom of the compressor. In order to ensure continuous and stable oil suction, the position of the oil pump opening is usually set low to avoid abnormal wear of the compressor contact mating part due to the oil pump being unable to extract lubricating oil when the oil volume inside the compressor decreases.

[0003] However, when the ambient temperature is low, the refrigerant inside the compressor tends to turn into liquid and accumulate in the oil pool at the bottom of the compressor together with the lubricating oil. The refrigerant and the lubricating oil will not mix, and there will be obvious stratification. Since the density of the oil is smaller than that of the refrigerant, after standing still, the lubricating oil will accumulate in the upper layer of the bottom oil pool, and the refrigerant will accumulate in the lower layer of the bottom oil pool. At this time, the opening of the oil pump is completely immersed in the refrigerant. When the compressor is started at low temperature, it is not the lubricating oil that is delivered to the bearings and other sliding parts through the oil pump, but the liquid refrigerant, which will cause the wear of the contact parts in the compressor to increase, seriously affecting the operating reliability of the compressor.

[0004] Since the scroll compressor in the prior art has technical problems such as when the compressor is started at low temperature, the lubricating oil at the bottom of the oil pool floats above the liquid refrigerant, and the oil pump cannot extract the lubricating oil, resulting in wear of the contact mating parts, the present invention studies and designs a scroll compressor and air conditioner.

[0005] Public Content

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the scroll compressor in the prior art that when the compressor is started at low temperature, the lubricating oil at the bottom of the oil pool floats above the liquid refrigerant, and the oil pump cannot extract the lubricating oil, resulting in wear of the contact mating parts, thereby providing a scroll compressor and air conditioner.

[0007] In order to solve the above problems, the present disclosure provides a scroll compressor, which includes:

[0008] An oil pump structure, an oil suction assembly, an oil guide part and an oil pool, wherein the oil pool is located inside the bottom of the scroll compressor, the oil suction assembly is arranged in the oil pool, the material density of the oil suction assembly is greater than the density of the lubricating oil and less than the density of the refrigerant, so that the oil suction assembly is suspended on the liquid surface of the refrigerant, one end of the oil guide part is connected to the oil suction assembly, and the other end is connected to the inside of the oil pump structure, the oil suction assembly can absorb the lubricating oil from the oil pool and guide it to the oil pump structure through the oil guide part.

[0009] In some embodiments, a limiting structure is further included, and the limiting structure can limit the oil suction assembly so that the oil suction assembly can only move in the vertical direction.

[0010] In some embodiments, the oil suction assembly includes a cylindrical portion and an oil suction pipe, one end of the oil suction pipe is connected to the interior of the cylindrical portion, and the other end is opened and extends upward into the lubricating oil layer in the oil pool.

[0011] In some embodiments, the cylindrical portion has a bottom surface capable of accommodating lubricating oil thereon, and the oil suction pipe is a curved pipe section structure.

[0012] In some embodiments, the oil guide portion includes a hollow cylindrical structure, and the cylindrical portion is arranged in the hollow space of the hollow cylindrical structure; the oil pump structure includes a pump body, the pump body is connected to the upper end of the cylindrical structure, and the interior of the pump body is connected to the interior of the cylindrical structure, so that the oil enters the interior of the pump body through the interior of the cylindrical structure.

[0013] In some embodiments, when a limiting structure is also included, the limiting structure includes a limiting groove opened in an axial direction at a position in the circumferential direction of the cylindrical structure, and the position where the oil suction pipe is connected to the cylindrical part is clamped in the limiting groove, so that the cylindrical part and the oil suction pipe can move along the direction of the limiting groove, and the limiting groove extends in the vertical direction.

[0014] In some embodiments, a limiting portion is also connected to the bottom of the cylindrical structure, and the limiting portion is located below the cylindrical portion; and / or the cylindrical structure and the pump body are integrally formed.

[0015] In some embodiments, the limiting portion is a disc-shaped structure.

[0016] In some embodiments, the oil guiding portion includes a hose, and the oil suction assembly includes a floating oil suction body, so that the floating oil suction body is located above the upper end of the refrigerant liquid surface, the floating oil suction body is connected to one end of the hose, and the other end of the hose is connected to the interior of the oil pump structure.

[0017] In some embodiments, when a limiting structure is further included, the limiting structure includes a limiting frame, the limiting frame is arranged in the oil pool, the limiting frame has an internal space extending in a vertical direction, and the floating oil absorbing body is arranged in the internal space.

[0018] In some embodiments, the oil pump structure includes a pump body and a compression mechanism, the interior of the pump body is provided with an accommodating space for accommodating the compression mechanism, a conducting groove is opened at the bottom of the pump body, the lower end of the conducting groove is connected to the oil guide part and oil is sucked therefrom and enters the compression mechanism through the conducting groove.

[0019] In some embodiments, an oil storage tank is further provided on the upper end surface of the bottom of the pump body. The oil storage tank is a sink structure, and the oil discharged by the compression mechanism reaches the oil storage tank.

[0020] The scroll compressor further includes a crankshaft having a crankshaft hole therein, and the oil storage tank can be communicated with the inside of the crankshaft hole so as to suck oil through the oil storage tank and enter the crankshaft hole.

[0021] In some embodiments, a driving structure is disposed at the lower end of the crankshaft, and the driving structure is connected to the compression mechanism to drive the compression mechanism to operate.

[0022] In some embodiments, the driving structure is disposed in the crankshaft hole and located at the lower end of the crankshaft, the pump body is connected to the lower end of the crankshaft, and a pump housing is further disposed between the upper end surface of the pump body and the lower end surface of the crankshaft;

[0023] The pump housing has a receiving hole to receive a portion of the driving structure that passes through the receiving hole to connect with the compression mechanism and drive the compression mechanism to operate.

[0024] The present disclosure also provides an air conditioner, comprising the scroll compressor as described in any of the preceding items.

[0025] The scroll compressor and air conditioner provided by the present disclosure have the following beneficial effects:

[0026] The present invention provides an oil suction assembly in the oil pool. The material density of the oil suction assembly is greater than the density of the lubricating oil and less than the density of the refrigerant. The oil suction assembly can move freely in the axial direction of the pump body and is always located above the liquid level of the refrigerant. The oil suction assembly can effectively guide the sucked lubricating oil into the oil pump structure through the oil guiding effect of the oil guide part to complete the oil suction. The suction port of the compressor oil pump can be always located in the lubricating oil. This structure can ensure that the oil pump sucks in lubricating oil instead of liquid refrigerant during low-temperature startup, avoid aggravated wear of contact parts such as bearings, achieve low-temperature startup lubrication, and effectively improve the low-temperature startup performance and reliability of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the scroll compressor according to the first embodiment of the present disclosure;

[0028] Figure 2 It is a schematic diagram of the oil pump structure of the first embodiment of the present disclosure;

[0029] Figure 3 It is a schematic diagram of the exploded structure of the oil pump of the first embodiment of the present disclosure;

[0030] Figure 4 This is a schematic diagram of the structure of the oil pump body of the first embodiment of the present disclosure;

[0031] Figure 5 This is a schematic diagram of the oil pump suction port structure of the first embodiment of the present disclosure;

[0032] Figure 6 A schematic diagram of the oil pump structure of Example 2 in the present disclosure.

[0033] The reference numerals are as follows:

[0034] 01. Shell assembly; 02. Stationary scroll assembly; 03. Orbital scroll assembly; 04. Anti-rotation mechanism; 05. Upper support assembly; 06. Crankshaft; 061. Drive structure; 062. Crankshaft hole; 07. Rotor assembly; 08. Motor; 09. Lower support assembly; 10. Oil pump structure; 11. Oil pool; 101. Pump casing; 102. Pump body; 103. Compression mechanism; 105. Limiting part; 1021. Accommodating space; 1022. Oil storage tank; 1023. Cylinder structure; 1024. Limiting groove; 1025. Conducting groove; 1041. Cylinder; 1042. Oil suction pipe; 106. Hose; 107. Floating oil suction body; 108. Limiting frame. DETAILED DESCRIPTION

[0035] like Figure 1-6 As shown, the present disclosure provides a scroll compressor, which includes:

[0036] An oil pump structure 10, an oil suction assembly, an oil guide part and an oil pool 11, wherein the oil pool 11 is located inside the bottom of the scroll compressor, the oil suction assembly is arranged in the oil pool 11, the material density of the oil suction assembly is greater than the density of the lubricating oil and less than the density of the refrigerant, so that the oil suction assembly is suspended on the liquid surface of the refrigerant, one end of the oil guide part is connected to the oil suction assembly, and the other end is connected to the interior of the oil pump structure, the oil suction assembly can absorb the lubricating oil from the oil pool 11 and guide it to the oil pump structure 10 through the oil guide part.

[0037] The present invention provides an oil suction assembly in the oil pool. The material density of the oil suction assembly is greater than the density of the lubricating oil and less than the density of the refrigerant. The oil suction assembly can move freely in the axial direction of the pump body and is always located above the liquid level of the refrigerant. The oil suction assembly can effectively guide the sucked lubricating oil into the oil pump structure through the oil guiding effect of the oil guide part to complete the oil suction. The suction port of the compressor oil pump can be always located in the lubricating oil. This structure can ensure that the oil pump sucks in lubricating oil instead of liquid refrigerant during low-temperature startup, avoid aggravated wear of contact parts such as bearings, achieve low-temperature startup lubrication, and effectively improve the low-temperature startup performance and reliability of the compressor.

[0038] The present disclosure provides a positive displacement oil pump installed on a compressor, which can realize low-temperature starting lubrication. The oil pump is characterized in that the oil pump has a movable oil suction component and an oil pump body that accommodates the oil suction component, and the oil suction component can move freely in the axial direction of the pump body; the material of the oil suction component of the oil pump is selected from a material with a smaller density than that of liquid refrigerant and a larger density than that of oil, such as polypropylene, so as to ensure that the oil suction component is always located at the interface between the refrigerant and the lubricating oil.

[0039] In some embodiments, a limiting structure is also included, and the limiting structure can limit the oil suction assembly so that the oil suction assembly can only move in the vertical direction. The present disclosure can limit the oil suction assembly to move only in the vertical direction by setting a limiting structure. The main function of the limiting structure is to limit the circumferential movement of the suction port so that the oil suction assembly can only move in the vertical direction to prevent the situation where the oil cannot be sucked; on the other hand, the side walls of the suction section in other directions can form an oil pump suction passage to prevent oil leakage.

[0040] Embodiment 1, as Figure 1-5 ,

[0041] In some embodiments, the oil suction assembly includes a cylindrical portion 1041 and an oil suction pipe 1042, one end of the oil suction pipe 1042 is connected to the interior of the cylindrical portion 1041, and the other end is open and extends upward into the lubricating oil layer in the oil pool 11. This is a preferred structural form of the first embodiment of the present disclosure, and the cylindrical portion and the oil suction pipe together form an oil suction assembly, and the cylindrical portion and the oil suction pipe can move up and down in the oil pool as the interface between the refrigerant liquid level and the oil rises or falls, and the oil in the lubricating oil layer can be sucked from above the oil-refrigerant interface through the oil suction pipe and introduced into the cylindrical portion.

[0042] In some embodiments, the cylindrical portion 1041 has a bottom surface capable of accommodating lubricating oil thereon, and the oil suction pipe 1042 is a curved pipe section structure. The cylindrical portion has a bottom surface structure capable of storing lubricating oil at the upper end of the bottom surface, preventing the lubricating oil from falling and failing to effectively absorb the oil. The oil suction pipe is preferably a curved pipe structure, which can form an upward opening by bending the upward opening, effectively absorbing oil from the lubricating oil layer.

[0043] In some embodiments, the oil guide portion includes a hollow cylindrical structure 1023, and the cylindrical portion 1041 is disposed in the hollow space of the hollow cylindrical structure 1023; the oil pump structure includes a pump body 102, the pump body 102 is connected to the upper end of the cylindrical structure 1023, and the interior of the pump body 102 is communicated with the interior of the cylindrical structure 1023, so that the oil enters the interior of the pump body 102 through the interior of the cylindrical structure 1023. This is the preferred structural form of the oil guide portion of the first embodiment of the present disclosure, that is, through the hollow cylindrical structure, the cylindrical portion of the oil suction assembly is accommodated in the hollow space of the cylindrical structure, and is guided to move along the hollow space of the cylindrical structure, and the oil sucked by the oil suction assembly can be conducted to the interior of the pump body through the cylindrical structure.

[0044] In some embodiments, when a limiting structure is also included, the limiting structure includes a limiting groove 1024 opened in the axial direction at a position in the circumferential direction of the cylindrical structure 1023, and the position where the oil suction pipe 1042 is connected to the cylindrical portion 1041 is clamped in the limiting groove 1024, so that the cylindrical portion 1041 and the oil suction pipe 1042 can move along the direction of the limiting groove 1024, and the limiting groove 1024 extends in the vertical direction. This is a further preferred structural form of the limiting structure of the first embodiment of the present disclosure. By opening the limiting groove along the axial direction on the side wall of the cylindrical structure, the oil suction pipe can be clamped and limited therein, so that the cylindrical portion and the oil suction pipe can move as a whole and can only move in the vertical direction of the limiting groove, which effectively ensures the suction of oil and prevents lateral movement without being able to suck in oil.

[0045] In some embodiments, a limiting portion 105 is connected to the bottom of the cylindrical structure 1023, and the limiting portion 105 is located below the cylindrical portion 1041; and / or the cylindrical structure 1023 and the pump body 102 are integrally formed. The present disclosure also provides a limiting portion connected to the bottom of the cylindrical structure, which can effectively limit the downward movement position of the cylindrical portion of the oil suction assembly to prevent the cylindrical portion from escaping from the cylindrical structure; the cylindrical structure and the pump body can be integrally formed during the manufacturing process, which can form a structure in which the pump body is compressed while completing the oil conduction.

[0046] In some embodiments, the limiting portion 105 is a disc-shaped structure; and / or the limiting portion 105 is fixedly connected to the cylindrical structure 1023. This is a preferred structural form of the limiting portion of the present disclosure, which improves the limiting effect on the limiting assembly.

[0047] The following is further described in detail with reference to the accompanying drawings:

[0048] like Figure 1 As shown, the scroll compressor is mainly composed of a housing assembly 01, a fixed scroll assembly 02, a movable scroll assembly 03, an anti-rotation mechanism 04, an upper support assembly 05, a crankshaft 06, a rotor assembly 07, a motor 08, a lower support assembly 09, an oil pump structure 10, etc. The motor 08 is fixed to the middle of the housing 01, and the upper support assembly 05 is fixed to the upper part of the housing 01 by welding or other means. The fixed scroll assembly 02 and the movable scroll assembly 03 are oppositely mounted on the upper support assembly 05 with a phase angle difference of 180°. The movable scroll moves under the drive of the crankshaft 06. Under the restriction of the anti-rotation mechanism 04, the movable scroll moves in a translational motion around the center of the crankshaft with a fixed radius, and meshes with the fixed scroll to form a series of crescent-shaped closed cavities that are isolated from each other and have continuously changing volumes. When the compressor is running, the rotor assembly 07 drives the crankshaft 06 to rotate, driving the movable scroll 03 to move. The refrigerant entering from the outside of the compressor is sucked into the crescent-shaped suction cavity formed by the movable scroll 03 and the fixed scroll 02. After being compressed, it is discharged into the shell through the exhaust hole on the fixed scroll 02, and then discharged from the compressor through the exhaust pipe. The bottom of the compressor is an oil pool space 11, which is used to accommodate the lubricating oil in the compressor. The lower end of the compressor crankshaft is installed with an oil pump structure 10, which is used to extract the lubricating oil accumulated in the oil pool to lubricate and cool the compressor bearings and pump body and other parts.

[0049] The specific structure of the oil pump is now described. Figure 2 , Figure 3 , which is a schematic diagram of the oil pump structure 10 of the present invention, a driving structure 061 is installed at the lower end of the crankshaft 06, which is used to drive the oil pump structure 10 to operate. The oil pump structure 10 includes a pump housing 101, which is used to support the crankshaft assembly and separate the oil pump space; a pump body 102, such as Figure 4 As shown, a space 1021 for accommodating the oil pump compression mechanism and an oil storage tank 1022 for accommodating high-pressure oil are provided inside the pump body. A suction section (cylindrical structure 1023) is provided at the lower end of the pump body, and a limiting groove 1024 is provided on the side wall thereof for limiting the position of the suction port; the compression mechanism 103 can perform volumetric compression, and its structure includes but is not limited to the gear oil pump shown in the figure; the oil suction component is made of a material with a lower density than the liquid refrigerant and a higher density than the oil, such as polypropylene, etc. Figure 5As shown, its structure includes a cylindrical portion 1041 that matches the suction section of the pump body, and an oil suction pipe 1042 extending from its side wall, the oil suction pipe 1042 has an upwardly bent end to ensure that its opening is higher than the bottom of the suction port in the vertical direction; and a limiting portion 105, which is installed at the bottom of the oil suction assembly and is used to limit the axial position of the oil suction assembly.

[0050] The operation mode of the floating oil pump is now explained. When the compressor is in a low-temperature starting state, the refrigerant inside the compressor condenses into liquid and accumulates in the oil pool 11 at the bottom of the compressor together with the lubricating oil. Since the density of the lubricating oil is smaller than that of the liquid refrigerant, there will be obvious stratification between the lubricating oil and the refrigerant at this time, and the lubricating oil will float above the refrigerant. Since the density of the suction port material is smaller than that of the liquid refrigerant but larger than that of the oil, the suction port will float at the interface between the liquid refrigerant and the lubricating oil at this time, and its axial position will change freely with the height of the refrigerant liquid level. Since the suction port has an upwardly bent pipe section, its opening section is always in the lubricating oil at this time, which can ensure that the lubricating oil is sucked in when the compressor is started at a low temperature, avoiding wear of each friction pair due to lack of oil.

[0051] Embodiment 2, as Figure 6 ,

[0052] In some embodiments, the oil guide portion includes a hose 106, and the oil suction assembly includes a floating oil suction body 107, so that the floating oil suction body 107 is located at the upper end of the refrigerant liquid surface, the floating oil suction body 107 is connected to one end of the hose 106, and the other end of the hose 106 is connected to the interior of the oil pump structure. The floating oil suction body is preferably a float structure. This is the preferred structural form of the second embodiment of the present disclosure, and the oil suction assembly is formed by the structure of the floating oil suction body. The floating oil suction body can move up and down in the oil pool as the interface between the refrigerant liquid surface and the oil rises or falls. The floating oil suction body can suck the oil in the lubricating oil layer from above the oil-refrigerant interface and introduce it into the hose, and the hose guides the oil to the oil pump structure.

[0053] In some embodiments, when a limiting structure is also included, the limiting structure includes a limiting frame 108, the limiting frame 108 is arranged in the oil pool, the limiting frame 108 has an internal space extending in the vertical direction, and the floating oil absorbing body 107 is arranged in the internal space. The limiting frame is preferably a hollow rectangular body structure. This is a further preferred structural form of the limiting structure of the second embodiment of the present disclosure. By setting the limiting frame, the floating oil absorbing body can be clamped and limited therein, so that the floating oil absorbing body can only move in the vertical direction of the limiting groove, effectively ensuring the suction of oil and preventing lateral movement without being able to suck oil.

[0054] like Figure 6As shown, an alternative embodiment of the oil pump structure is specifically described as follows: the oil pump structure 10 includes a pump housing 101 for supporting the crankshaft assembly and separating the oil pump space; a pump body 102, having an internal space for accommodating a compression mechanism and a suction channel; a compression mechanism 103, which can perform volumetric compression; it is characterized in that the pump body suction channel is connected to a lightweight hose 106, and the lightweight hose can be freely bent; a floating oil suction body 107, whose material is selected from a material with a lower density than the liquid refrigerant and a higher density than the oil, such as polypropylene, is connected to the end of the hose 106; a limit frame 108 is used to limit the position of the floating oil suction body 107 so that it can only move in the axial direction.

[0055] When the compressor is started at low temperature, the refrigerant and refrigeration oil in the casing are clearly stratified, and the lubricating oil floats above the refrigerant. Since the density of the suction port material is smaller than that of the liquid refrigerant but larger than that of the oil, the suction port will float at the interface between the liquid refrigerant and the lubricating oil, and its axial position will change freely in the limit frame with the height of the refrigerant liquid level, ensuring that the lubricating oil is sucked in when the compressor is started at low temperature, avoiding wear of each friction pair due to lack of oil.

[0056] In some embodiments, the oil pump structure includes a pump body 102 and a compression mechanism 103, wherein the pump body 102 is provided with an accommodating space 1021 for accommodating the compression mechanism 103 therein, and a conducting groove 1025 is provided at the bottom of the pump body 102, wherein the lower end of the conducting groove 1025 is connected to the oil guide portion and oil is sucked therefrom, and enters the compression mechanism 103 through the conducting groove 1025. The compression mechanism is preferably a gear oil pump. This is the preferred structural form of the oil pump structure disclosed in the present invention, and the internal low pressure can be formed by the cooperation of the pump body and the compression mechanism, thereby sucking the oil in the oil pool into the oil pump structure, and the conducting groove sucks the oil in the oil guide portion into the compression mechanism.

[0057] In some embodiments, the upper end surface of the bottom of the pump body 102 is further provided with an oil storage tank 1022, and the oil storage tank 1022 is a sink structure, and the oil discharged by the compression mechanism 103 reaches the oil storage tank 1022;

[0058] The scroll compressor further includes a crankshaft 06 , the interior of which is provided with a crankshaft hole 062 , and the oil storage tank 1022 can be communicated with the interior of the crankshaft hole 062 so as to suck oil through the oil storage tank 1022 and enter the crankshaft hole 062 .

[0059] The present invention also has an oil storage tank opened on the upper end surface of the bottom of the pump body, which can store the oil sucked by the compression mechanism and pump it into the crankshaft hole of the crankshaft to complete the transmission of the lubricating oil in the crankshaft hole.

[0060] In some embodiments, a driving structure 061 is provided at the lower end of the crankshaft 06, and the driving structure is connected to the compression mechanism 103 to drive the compression mechanism 103 to operate. The present disclosure can also drive the compression mechanism in the pump body to operate through the driving structure at the lower end of the crankshaft. The driving structure is preferably fixedly disposed in the crankshaft hole of the crankshaft, and rotates integrally with the rotation of the crankshaft, thereby driving the compression mechanism to operate.

[0061] In some embodiments, the driving structure 061 is disposed in the crankshaft hole 062 and located at the lower end of the crankshaft 06, the pump body 102 is connected to the lower end of the crankshaft 06, and a pump housing 101 is further disposed between the upper end surface of the pump body 102 and the lower end surface of the crankshaft 06;

[0062] The pump housing 101 has a receiving hole to accommodate a portion of the driving structure 061 passing through the receiving hole to connect with the compression mechanism 103 to drive the compression mechanism 103 to operate.

[0063] This is a further preferred structural form of the present disclosure, in which a closed space of the oil pump structure can be formed through the pump casing to facilitate the formation of low pressure to suck oil, and the driving structure penetrates into the pump body through the accommodating hole to drive the compression mechanism to operate.

[0064] The present disclosure also provides an air conditioner, comprising the scroll compressor as described in any of the preceding items.

[0065] The above is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure. The above is only a preferred implementation of the present disclosure. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present disclosure, and these improvements and variations should also be regarded as the protection scope of the present disclosure.

Claims

1. A scroll compressor, characterized in that: include: An oil pump structure (10), an oil suction component, an oil guide portion, and an oil pool (11), wherein the oil pool (11) is located inside the bottom of the scroll compressor, the oil suction component is arranged in the oil pool (11), the material density of the oil suction component is greater than the density of the lubricating oil and less than the density of the refrigerant, so that the oil suction component is suspended on the liquid surface of the refrigerant, one end of the oil guide portion is connected to the oil suction component, and the other end is connected to the inside of the oil pump structure, the oil suction component can absorb the lubricating oil from the oil pool (11) and guide it to the oil pump structure (10) through the oil guide portion; It also includes a limiting structure, which can limit the oil suction assembly so that the oil suction assembly can only move in the vertical direction; The oil suction assembly comprises a cylindrical portion (1041) and an oil suction pipe (1042); one end of the oil suction pipe (1042) is connected to the interior of the cylindrical portion (1041), and the other end is open and extends upward into the lubricating oil layer in the oil pool (11); The cylindrical portion (1041) has a bottom surface capable of accommodating lubricating oil thereon, and the oil suction pipe (1042) is a curved pipe section structure; The oil guide portion comprises a hollow cylindrical structure (1023), and the cylindrical portion (1041) is arranged in the hollow space of the hollow cylindrical structure (1023); the oil pump structure comprises a pump body (102), the pump body (102) is connected to the upper end of the cylindrical structure (1023), and the interior of the pump body (102) is communicated with the interior of the cylindrical structure (1023), so that the oil passes through the interior of the cylindrical structure (1023) and enters the interior of the pump body (102); The limiting structure comprises a limiting groove (1024) provided in an axial direction at a position in the circumferential direction of the cylindrical structure (1023), and the position where the oil suction pipe (1042) is connected to the cylindrical portion (1041) is clamped in the limiting groove (1024), so that the cylindrical portion (1041) and the oil suction pipe (1042) can move along the direction of the limiting groove (1024), and the limiting groove (1024) extends in the vertical direction.

2. The scroll compressor according to claim 1, characterized in that: A limiting portion (105) is also connected to the bottom of the cylindrical structure (1023), and the limiting portion (105) is located below the cylindrical portion (1041); and / or the cylindrical structure (1023) and the pump body (102) are integrally formed.

3. The scroll compressor according to claim 2, characterized in that: The limiting portion (105) is a disc-shaped structure; and / or the limiting portion (105) is fixedly connected to the cylindrical structure (1023).

4. The scroll compressor according to any one of claims 1 to 3, characterized in that: The oil pump structure comprises a pump body (102) and a compression mechanism (103); an accommodating space (1021) for accommodating the compression mechanism (103) is provided inside the pump body (102); a conducting groove (1025) is provided at the bottom of the pump body (102); the lower end of the conducting groove (1025) is connected to the oil guide portion and oil is sucked therefrom and enters the compression mechanism (103) through the conducting groove (1025).

5. The scroll compressor according to claim 4, characterized in that: An oil storage tank (1022) is also provided on the upper end surface of the bottom of the pump body (102). The oil storage tank (1022) is a sink structure, and the oil discharged by the compression mechanism (103) reaches the oil storage tank (1022). The scroll compressor also includes a crankshaft (06), the interior of the crankshaft (06) having a crankshaft hole (062), and the oil storage tank (1022) can be connected to the interior of the crankshaft hole (062) so as to suck oil through the oil storage tank (1022) and enter the crankshaft hole (062).

6. The scroll compressor according to claim 5, characterized in that: A driving structure (061) is provided at the lower end of the crankshaft (06), and the driving structure is connected to the compression mechanism (103) to drive the compression mechanism (103) to operate.

7. The scroll compressor according to claim 6, characterized in that: The driving structure (061) is arranged in the crankshaft hole (062) and is located at the lower end of the crankshaft (06); the pump body (102) is connected to the lower end of the crankshaft (06); and a pump housing (101) is further arranged between the upper end surface of the pump body (102) and the lower end surface of the crankshaft (06); The pump housing (101) has a receiving hole to accommodate a portion of the driving structure (061) passing through the receiving hole to connect with the compression mechanism (103) so as to drive the compression mechanism (103) to operate.

8. An air conditioner, characterized in that: The invention comprises the scroll compressor according to any one of claims 1 to 7.

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