Scroll compressor and air conditioner

By designing a dual-stage oil pump structure in the scroll compressor, and using the first and second-stage suction ports to select the oil suction port position according to the rotation speed, the problem of the oil pump suctioning refrigerant during low-temperature start-up is solved, and the low-temperature start-up performance and reliability of the compressor are significantly improved.

CN112594188BActive Publication Date: 2025-02-28ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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Patent Information

Application Number
CN202011395719.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-12-03
Publication Date
2025-02-28
Estimated Expiration
2040-12-03

AI Technical Summary

Technical Problem

In low temperature environments, the oil pump of the scroll compressor will suck liquid refrigerant instead of lubricating oil, causing increased wear at the contact fitting area and affecting the operating reliability of the compressor.

Method used

A scroll compressor with a dual-stage oil pump structure is designed. The volumetric oil pump absorbs oil through the first and second stage suction ports, and is connected to the first and second openings in a selective manner according to the rotation speed of the crankshaft to ensure that lubricating oil instead of liquid refrigerant is sucked in at low temperature start-up.

Benefits of technology

It effectively avoids the wear of the contact parts such as bearings in the compressor, and improves the low-temperature starting performance and reliability of the compressor.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to the field of compressor lubrication technology, and specifically to a scroll compressor and air conditioner, which includes a compressor body, an oil pool space for accommodating lubricating oil is provided at the bottom of the compressor body, a positive displacement oil pump is provided in the oil pool space, the positive displacement oil pump is connected to the oil supply channel in the crankshaft of the compressor body, the positive displacement oil pump includes a pump body, the pump body includes an oil pumping part, the oil pumping part is connected to the oil supply channel in the crankshaft of the compressor body, a primary oil suction channel and a secondary oil suction channel are provided on the pump body, the primary oil suction channel and the secondary oil suction channel extend out of the surface of the pump body to form a primary suction port and a secondary suction port, the height of the primary suction port is higher than the height of the secondary suction port, and the oil pumping part is selectively connected to the primary oil suction channel and the secondary oil suction channel. The present invention can effectively avoid the aggravation of the contact parts such as the bearings in the compressor, thereby effectively improving the low temperature starting performance and reliability of the compressor.
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Description

Technical Field

[0001] The invention relates to the technical field of compressor lubrication, 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. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a scroll compressor.

[0005] The present invention is implemented by the following scheme:

[0006] A scroll compressor comprises a compressor body, wherein an oil pool space for accommodating lubricating oil is provided at the bottom of the compressor body, a positive displacement oil pump is provided in the oil pool space, the positive displacement oil pump is communicated with an oil supply channel in a crankshaft of the compressor body, the positive displacement oil pump comprises a pump body, the pump body comprises an oil pumping part, the oil pumping part is communicated with the oil supply channel in the crankshaft of the compressor body, a primary oil suction channel and a secondary oil suction channel are provided on the pump body, the primary oil suction channel and the secondary oil suction channel extend out of the surface of the pump body to form a primary suction port and a secondary suction port, the height of the primary suction port is higher than the height of the secondary suction port, and the oil pumping part is selectively communicated with the primary oil suction channel and the secondary oil suction channel.

[0007] Furthermore, the pump body is provided with an installation cavity corresponding to the oil pumping part, and the oil pumping part includes a stator and a rotor arranged in the installation cavity, a volume cavity is formed between the stator and the rotor, and the rotor is fixedly connected to the crankshaft of the compressor body through a driving part, and the driving part connects the volume cavity with the oil supply channel in the crankshaft, and the first-level oil suction channel and the second-level oil suction channel extend out of the bottom of the installation cavity to form a first opening and a second opening. A connecting channel connected to the volume cavity is provided on the rotor, and the connecting channel is selectively connected to the first opening and the second opening according to the rotation speed of the crankshaft. When the rotation speed of the crankshaft is less than K, the connecting channel is connected to the first opening, and when the rotation speed of the crankshaft is greater than K, the connecting channel is connected to the second opening.

[0008] Further, the stator is fixedly arranged in the installation cavity, the rotor is rotatably arranged at the bottom of the installation cavity, the connecting channel includes a first oil groove and a second oil groove which are annularly opened at the bottom of the rotor, the first oil groove is located on the outer side of the second oil groove, the first opening and the second opening are respectively arranged corresponding to the first oil groove and the second oil groove, and the first opening is always connected to the first oil groove, and the second opening is always connected to the second oil groove, the inner side wall of the second oil groove is also provided with a slider groove, the bottom of the second oil groove is provided with an oil suction hole which is interconnected with the volume cavity corresponding to the opening of the slider groove, a slider is also arranged in the slider groove, the slider is connected to the bottom of the slider groove through a first elastic connecting member, the lower surface of the slider is arranged in contact with the bottom surface of the installation cavity, the rotor part located between the first oil groove and the second oil groove is provided with a passage for the slider to pass corresponding to the slider, the two sides of the slider are slidably sealed and matched with the two sides of the passage, the bottom of the first oil groove is provided with a sink groove, and the sink groove passes through the passage and is connected with the oil suction hole.

[0009] Furthermore, a circular accommodating groove is provided on the upper surface of the rotor, the accommodating groove is connected with the oil suction hole, the stator and the accommodating groove are sealed and matched with each other to form a volume cavity, the stator is provided with a disc-shaped roller segment extending into the volume cavity corresponding to the volume cavity, one side of the roller segment is arranged in contact with the side wall of the volume cavity, the roller segment is also provided with a through hole penetrating the stator, and the through hole is connected with the volume cavity, the side wall of the through hole is provided with an oil discharge hole penetrating the roller segment, and the lower surface of the roller segment is also provided with an oil suction groove, and the oil suction groove covers A partial path of the oil drain hole is set to cover it, and one end of the oil suction groove extends out of the roller section to form an outlet. A vane groove is also set on the roller section, and the vane groove is located between the oil drain hole and the outlet. A vane is set in the vane groove, and the vane is connected to the bottom of the vane groove through a second elastic connecting piece. One end of the vane away from the vane groove is abutted against the side wall of the accommodating groove. The driving part passes through the through hole and is drivingly connected to the rotor. The driving part and the through hole are rotatably sealed and matched, and the driving part connects the through hole and the oil supply channel of the crankshaft.

[0010] Furthermore, the rotor is in a disc shape, the accommodating groove is eccentrically arranged with respect to the rotor, and the roller segment is arranged coaxially with respect to the rotor.

[0011] Furthermore, a connecting portion for fixedly connecting with the driving portion is provided at the bottom of the accommodating groove corresponding to the driving portion.

[0012] Furthermore, the first elastic connecting member and the second elastic connecting member are both springs.

[0013] In addition, the present invention also provides an air conditioner, which includes the scroll compressor.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention provides a scroll compressor with a two-stage oil pump structure. When the compressor is started at a low speed, the positive displacement oil pump sucks oil through the primary suction port. When the compressor runs faster, the positive displacement oil pump sucks oil through the secondary suction port. The primary suction port is located above the secondary suction port. Therefore, the structure can ensure that the positive displacement oil pump sucks the lubricating oil at the bottom of the oil pool space and the non-liquid refrigerant at the top of the oil pool space during low-temperature startup, which can effectively avoid the increased wear of contact parts such as bearings in the compressor, thereby effectively improving the low-temperature startup performance and reliability of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a scroll compressor provided by the present invention.

[0017] Figure 2 for Figure 1 A partial enlarged view of .

[0018] Figure 3 The structure of the rotor provided by the present invention is schematically shown Figure 1 .

[0019] Figure 4 The structure of the rotor provided by the present invention is schematically shown Figure 2 .

[0020] Figure 5 A schematic structural diagram of a stator provided by the present invention.

[0021] Included in the picture are:

[0022] 1-Positive displacement oil pump, 11-Pump body, 12-First-stage oil suction channel, 121-First-stage suction port, 122-First opening, 13-Second-stage oil suction channel, 131-Second-stage suction port, 132-Second opening, 14-Rotor, 141-First oil groove, 1411-Sinking groove, 142-Second oil groove, 1421-Slider groove, 1422-Slider, 1423-Oil suction hole, 143-Aisle, 144-Accommodating groove, 145-Connecting part, 15-Stator, 151-Roller section, 152-Through hole, 153-Oil suction groove, 1531-Outlet, 154-Oil discharge hole, 155-Sliding vane groove, 2-Oil pool space, 3-Crankshaft, 31-Oil supply channel, 32-Drive part, 4-Motor, 51-Stationary scroll assembly, 52-Moving scroll assembly. DETAILED DESCRIPTION

[0023] To facilitate those skilled in the art to understand the present invention, the present invention will be further described in detail below in conjunction with specific embodiments and drawings.

[0024] like Figure 1 A scroll compressor provided by the present invention comprises a compressor body, wherein a fixed scroll assembly 51, a movable scroll assembly 52, a motor 4 and an oil pool space 2 are sequentially arranged inside the compressor body from top to bottom, wherein the oil pool space 2 is located at the bottom of the compressor body, the movable scroll assembly 52 is drivingly connected to the motor 4 through a crankshaft 3, a positive displacement oil pump 1 is arranged in the oil pool space 2, and the positive displacement oil pump 1 is communicated with an oil supply channel 31 in the crankshaft 3 of the compressor body, so as to deliver lubricating oil to the movable scroll assembly 52 and its connecting structure, such as Figure 2The positive displacement oil pump 1 includes a pump body 11, and the pump body 11 includes an oil pumping part, and the oil pumping part is communicated with the oil supply channel 31 in the crankshaft 3 of the compressor body. The pump body 11 is provided with a primary oil suction channel 12 and a secondary oil suction channel 13, and the primary oil suction channel 12 and the secondary oil suction channel 13 extend out of the surface of the pump body 11 to form a primary suction port 121 and a secondary suction port 131, and the height of the primary suction port 121 is higher than the height of the secondary suction port 131, that is, the primary suction port 121 and the secondary suction port 131 are respectively located at the upper part and the lower part of the oil pool space 2, and the oil pumping part is connected to the primary oil suction channel when the compressor is started at low temperature. The oil supply passage 31 of the crankshaft 3 is connected with the secondary oil suction passage 13 after the compressor is started. At this time, the temperature of the compressor is significantly increased compared with the temperature just at the start, and the refrigerant vaporizes and leaves the oil pool space 2. Therefore, the lubricating oil located in the lower part of the oil pool space 2 is delivered to the crankshaft 3 by the oil pump unit when the compressor is started at low temperature. This can avoid the oil amount in the oil pool space 2 being reduced, resulting in the oil pump unit being unable to extract the lubricating oil, thereby avoiding abnormal wear of the contact and matching parts of the scroll compressor.

[0025] like Figure 2The pump body 11 is provided with an installation cavity corresponding to the oil pumping part, and the primary oil suction channel and the secondary oil suction channel extend out of the bottom of the installation cavity to form a first opening 122 and a second opening 132. The oil pumping part includes a stator 15 and a rotor 14 arranged in the installation cavity, and a closed volume cavity for extracting lubricating oil is formed between the stator 15 and the rotor 14. The lubricating oil in the oil pool space 2 can be extracted into the volume cavity by the rotation of the rotor 14, and the lubricating oil in the volume cavity can be transported to the oil supply channel 31 of the crankshaft 3 to lubricate the contact parts of the compressor. The rotor 14 is fixedly connected to the crankshaft 3 of the compressor body through the driving part 32. The rotor 14 will rotate around its own center line as the crankshaft 3 rotates. At the same time, the driving part 32 also connects the volume cavity with the crankshaft 3, the rotor 14 is provided with a connecting channel connected to the volume chamber. When the rotation speed of the crankshaft 3 is less than K, the connecting channel is connected to the first opening 122. Therefore, when the scroll compressor is started at low temperature, the oil pump part extracts the lubricating oil in the upper part of the oil pool space 2, which can avoid the liquid refrigerant at the bottom of the oil pool space 2 from being extracted into the oil supply channel 31 of the crankshaft 3. When the compressor is started and the rotation speed of the crankshaft 3 is greater than K, the connecting channel is connected to the second opening 132. At this time, the temperature of the compressor is significantly increased compared to the temperature at the time of just starting, and the refrigerant will vaporize and leave the oil pool space 2. Therefore, the oil pump part extracts the lubricating oil in the lower part of the oil pool space 2 at this time, which can avoid the oil amount in the oil pool space 2 from being reduced and causing the oil pump part to be unable to extract the lubricating oil, thereby avoiding abnormal wear of the contact and matching parts of the scroll compressor. Wherein, K is the preset rotation speed.

[0026] The stator 15 is fixedly disposed in the installation cavity, and the rotor 14 is rotatably disposed at the bottom of the installation cavity. Figure 3The rotor 14 is disc-shaped, and the connecting passage includes a first oil groove 141 and a second oil groove 142 in an annular shape opened at the bottom of the rotor 14. The first oil groove 141 and the second oil groove 142 are arranged coaxially with the rotor 14. The first oil groove 141 is located outside the second oil groove 142. The first opening 122 and the second opening 132 are arranged corresponding to the first oil groove 141 and the second oil groove 142 respectively. Since the rotor 14 rotates around its own center line when rotating, the first opening 122 arranged corresponding to the first oil groove 141 is always connected to the first oil groove 141, and the second opening 122 arranged corresponding to the second oil groove 142 is always connected to the first oil groove 141. The second oil groove 142 is always connected to the second oil groove 142, and the inner side wall of the second oil groove 142 is also provided with a slider groove 1421. The bottom of the second oil groove 142 corresponds to the opening of the slider groove 1421 and is provided with an oil suction hole 1423 that is mutually connected with the volume cavity. The slider groove 1421 is also provided with a slider 1422, and the slider 1422 is connected to the bottom of the slider groove 1421 through a first elastic connecting member, such as a spring. The lower surface of the slider 1422 is arranged in contact with the bottom surface of the installation cavity, and the rotor 14 portion located between the first oil groove 141 and the second oil groove 142 corresponds to the slider 1422 and is provided with a slider for the slider The two sides of the slider 1422 are slidably sealed and matched with the two sides of the passage 143. A sink groove 1411 is provided at the bottom of the first oil groove 141. The sink groove 1411 passes through the passage 143 and is communicated with the oil suction hole 1423. When the rotor 14 rotates under the drive of the crankshaft 3, the slider 1422 in the slider groove 1421 moves along the channel formed by the slider groove 1421 and the passage 143 due to the centrifugal force. When the rotation speed of the crankshaft 3 is lower than K, the centrifugal force of the slider 1422 is small. At this time, the slider 1422 will block part of the sink groove 1411 located in the second oil groove 142. 411 and passage 143, at this time, the volume chamber is connected to the first opening 122 through the first oil groove 141, the sink groove 1411 and the oil suction hole 1423, but not connected to the second opening 132, that is, the connecting channel is connected to the first suction port. When the rotation speed of the crankshaft 3 is higher than K, the centrifugal force of the slider 1422 is large. At this time, the slider 1422 will block the sink groove 1411 located in the first oil groove 141. The part of the sink groove 1411 and the passage 143 exposes the oil suction hole 1423. At this time, the volume chamber is connected to the second opening 132 through the oil suction hole 1423 and the second oil groove 142, but not connected to the first opening 122, that is, the connecting channel is connected to the second suction port. Among them, the value of K depends on the elastic coefficient of the first elastic connector.

[0027] like Figure 4The upper surface of the rotor 14 is provided with a circular receiving groove 144, which is eccentrically arranged with the rotor 14, that is, the center line of the receiving groove 144 and the rotor 14 are different straight lines, and the receiving groove 144 is connected with the oil suction hole 1423, and the edge of the stator 15 and the receiving groove 144 are sealed and matched with each other to form a volume cavity, such as Figure 5The stator 15 is provided with a disc-shaped roller segment 151 extending into the volume cavity corresponding to the volume cavity, the lower surface of the roller segment 151 is in contact with the lower surface of the receiving groove 144, the roller segment 151 is arranged coaxially with the rotor 14, and one side of the roller segment 151 is in contact with the side wall of the volume cavity, the roller segment 151 is also provided with a sliding plate groove 155, and a sliding plate is arranged in the sliding plate groove 155, and the sliding plate is connected to the bottom of the sliding plate groove 155 through a second elastic connecting member, such as a spring, and the end of the sliding plate away from the sliding plate groove 155 is against the side wall of the receiving groove 144, so the roller segment 151 and the sliding plate thereon separate the volume cavity. The roller segment 151 is provided with a through hole 152 that passes through the stator 15, and the through hole 152 is connected to the volume cavity. The driving portion 32 passes through the through hole 152 and is drivingly connected to the rotor 14. The driving portion 32 and the through hole 152 are rotatably sealed and matched, and the driving portion 32 communicates with the through hole 152 and the oil supply channel 31 of the crankshaft 3. The side wall of the through hole 152 is provided with an oil discharge hole 154 that passes through the roller segment 151. The lower surface of the roller segment 151 is also provided with an oil suction groove 153, and the oil suction groove 153 covers a part of the path of the oil discharge hole 154 and the oil suction groove 153 is provided. One end of the roller segment 151 extends out to form an outlet 1531, and the oil drain hole 154 and the outlet 1531 are arranged on both sides of the vane groove 155, and the oil drain hole 154, the outlet 1531 and the vane groove 155 are located on the same side of a certain diameter on the roller segment 151, so the oil drain hole 154 and the outlet 1531 are respectively connected to the two cavities separated by the roller segment 151 and the vane, and as the rotor 14 rotates, the volume size relationship of the two cavities will continuously change to each other, specifically, when the volume of the cavity connected to the outlet 1531 is continuously increasing and the volume of the cavity connected to the oil drain hole 154 is continuously decreasing, the oil suction hole 1423 rotates to the oil suction groove 1423. The path where the rotor 14 is located is connected with the oil suction groove 153. At this time, the enlarged volume cavity sucks lubricating oil from the oil suction groove 153 until the volume of the volume cavity becomes the maximum. The oil suction hole 1423 turns away from the path where the oil suction groove 153 is located, and contacts the part of the stator 15 without the oil suction groove 153. The oil suction hole 1423 is not connected with the oil suction groove 153. Then the volume of the volume cavity continues to decrease with the rotation of the rotor 14. At this time, the volume cavity is connected with the oil discharge hole 154, and the lubricating oil is discharged into the through hole 152 of the stator 15, and then the lubricating oil is pumped into the oil supply channel 31 of the crankshaft 3. This process is repeated to continuously complete the process of pumping the lubricating oil in the oil pool space 2 into the oil supply channel 31 of the crankshaft 3. At the same time, in this process, the connecting channel on the rotor 14 will selectively communicate with the first opening 122 and the second opening 132 according to the rotation speed of the crankshaft 3, so as to achieve the technical effect of always extracting lubricating oil to the oil supply channel 31 of the crankshaft 3.

[0028] A connecting portion 145 for fixedly connecting with the driving portion 32 is disposed at the bottom of the receiving groove 144 corresponding to the driving portion 32. The connecting portion 145 is located in the through hole 152 of the stator 15, and the connecting portion 145 is disposed coaxially with the rotating shaft.

[0029] In addition, the present invention also provides an air conditioner, which includes the scroll compressor.

[0030] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Although the present invention is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes according to the above content. Therefore, all such substitutions, improvements and changes are included in the scope of the appended claims.

Claims

1. A scroll compressor, comprising a compressor body, wherein an oil pool space for accommodating lubricating oil is provided at the bottom of the compressor body, a positive displacement oil pump is provided in the oil pool space, and the positive displacement oil pump is communicated with an oil supply channel in a crankshaft of the compressor body, wherein: The positive displacement oil pump comprises a pump body, the pump body comprises an oil pumping part, the oil pumping part is communicated with the oil supply passage in the crankshaft of the compressor body, a primary oil suction passage and a secondary oil suction passage are opened on the pump body, the primary oil suction passage and the secondary oil suction passage extend out of the surface of the pump body to form a primary suction port and a secondary suction port, the height of the primary suction port is higher than the height of the secondary suction port, and the oil pumping part is selectively communicated with the primary oil suction passage and the secondary oil suction passage; The pump body is provided with an installation cavity corresponding to the oil pumping part, and the oil pumping part includes a stator and a rotor arranged in the installation cavity, a volume cavity is formed between the stator and the rotor, and the rotor is fixedly connected to the crankshaft of the compressor body through a driving part, and the driving part connects the volume cavity with the oil supply channel in the crankshaft, and the first-level oil suction channel and the second-level oil suction channel extend out of the bottom of the installation cavity to form a first opening and a second opening. A connecting channel connected to the volume cavity is provided on the rotor, and the connecting channel is selectively connected to the first opening and the second opening according to the rotation speed of the crankshaft. When the rotation speed of the crankshaft is less than K, the connecting channel is connected to the first opening, and when the rotation speed of the crankshaft is greater than K, the connecting channel is connected to the second opening.

2. The scroll compressor according to claim 1, characterized in that: The stator is fixedly arranged in the installation cavity, and the rotor is rotatably arranged at the bottom of the installation cavity. The connecting channel includes a first oil groove and a second oil groove which are annularly opened at the bottom of the rotor, the first oil groove is located on the outer side of the second oil groove, the first opening and the second opening are respectively arranged corresponding to the first oil groove and the second oil groove, and the first opening is always connected to the first oil groove, and the second opening is always connected to the second oil groove. A slider groove is also arranged on the inner side wall of the second oil groove, and an oil suction hole which is interconnected with the volume cavity is arranged at the bottom of the second oil groove corresponding to the opening of the slider groove. A slider is also arranged in the slider groove, and the slider is connected to the bottom of the slider groove through a first elastic connecting member. The lower surface of the slider is arranged to fit the bottom surface of the installation cavity. The rotor part located between the first oil groove and the second oil groove is arranged corresponding to the slider with a passage for the slider to pass through, and the two sides of the slider are slidably sealed and matched with the two sides of the passage. A sink groove is arranged at the bottom of the first oil groove, and the sink groove passes through the passage and is connected with the oil suction hole.

3. The scroll compressor according to claim 2, characterized in that: The upper surface of the rotor is provided with a circular accommodating groove, and the accommodating groove is connected with the oil suction hole. The stator and the accommodating groove are sealed and matched with each other to form a volume cavity. The stator is provided with a disc-shaped roller segment extending into the volume cavity corresponding to the volume cavity. One side of the roller segment is arranged in contact with the side wall of the volume cavity. The roller segment is also provided with a through hole penetrating the stator, and the through hole is connected with the volume cavity. The side wall of the through hole is provided with an oil discharge hole penetrating the roller segment. The lower surface of the roller segment is also provided with an oil suction groove, and the oil suction groove covers the The oil drain hole is arranged on a partial path and one end of the oil suction groove extends out of the roller segment to form an outlet, and a vane groove is also arranged on the roller segment, and the vane groove is located between the oil drain hole and the outlet, and a vane is arranged in the vane groove, and the vane is connected to the bottom of the vane groove through a second elastic connecting piece, and one end of the vane away from the vane groove abuts against the side wall of the accommodating groove, and the driving part passes through the through hole and is drivingly connected to the rotor, and the driving part and the through hole are rotatably sealed and matched, and the driving part connects the through hole and the oil supply channel of the crankshaft.

4. The scroll compressor according to claim 3, characterized in that: The rotor is in a disc shape, the accommodating groove is eccentrically arranged with respect to the rotor, and the roller segment is arranged coaxially with respect to the rotor.

5. The scroll compressor according to claim 3, characterized in that: A connecting portion for fixedly connecting with the driving portion is provided at the bottom of the accommodating groove corresponding to the driving portion.

6. The scroll compressor according to claim 3, characterized in that: The first elastic connecting member and the second elastic connecting member are both springs.

7. An air conditioner, characterized in that: Comprising a scroll compressor as described in any one of claims 1-6.

Citation Information

Patent Citations

  • Scroll compressors and air conditioners

    CN215058184U