Electric scroll compressor lubricating structure and electric scroll compressor assembly

Abstract

The invention provides an electric scroll compressor lubricating structure and an electric scroll compressor assembly, and relates to the field of compressors, the electric scroll compressor lubricating structure comprises a static scroll plate, the static scroll plate comprises a plate body and a scroll plate which are connected, the plate body is provided with an oil conveying channel, one end of the oil conveying channel is used for introducing refrigerant oil, and the other end of the oil conveying channel is located in an area defined by the scroll plate; the oil conveying channel is used for conveying refrigeration oil into a compression cavity formed by the static vortex plate and the dynamic vortex plate in a matched mode. When the compressor runs, refrigerant oil can be conveyed to the vortex plate, lubrication of the vortex cavity is improved, especially under the limiting working condition, the exhaust temperature of the compressor can be reduced, and the reliability of the compressor is improved. And an oil injection control valve is arranged in the oil return system to control the oil injection time and the oil injection quantity, meanwhile, gas in the compression cavity can be prevented from flowing back to an oil separation system, and the operation reliability of the compressor is improved.

Description

Technical Field

[0001] The invention relates to the field of compressors, and in particular to an electric scroll compressor lubrication structure and an electric scroll compressor assembly. Background Art

[0002] The scroll compressor is a positive displacement compressor with high efficiency, low noise and smooth operation. The moving parts inside it need to be fully lubricated during operation to reduce the friction loss of each component. The stator and the moving plate are the core components of the scroll compressor. How to reduce the friction loss of the stator and the moving plate is the key to ensuring the performance and improving the service life of the compressor. Existing automotive scroll compressors generally use a throttling structure to lubricate the compression chamber and the friction pair through the oil return channel with the refrigerant oil separated by the oil separation structure on the high-pressure side. This will cause the risk of air leakage between high and low pressure. The oil after throttling is high-temperature oil, which will have a certain impact on the performance and reliability of the compressor. In addition, the refrigerant oil return channel has a single path and cannot guide the refrigerant oil to flow back to various parts of the scroll. The refrigerant oil cannot fully lubricate the scroll, resulting in increased friction losses of the stator and the moving plate, which reduces the reliability and service life of the scroll compressor. Summary of the invention

[0003] The purpose of the present invention includes, for example, providing an electric scroll compressor lubrication structure and an electric scroll compressor assembly, which can directly deliver refrigeration oil to the scroll plate to improve the lubrication of the scroll chamber, especially under extreme working conditions, and can also reduce the exhaust temperature of the compressor and improve the reliability of the compressor. In addition, there is an oil injection control valve in the oil return system to control the injection time and amount of oil, and at the same time, it can prevent the gas in the compression chamber from flowing back to the oil distribution system, thereby improving the operating reliability of the compressor.

[0004] The embodiments of the present invention can be implemented as follows:

[0005] In a first aspect, the present invention provides a lubrication structure for an electric scroll compressor, comprising:

[0006] The fixed scroll comprises a connected disk body and a vortex plate, the disk body is provided with an oil delivery channel, one end of the oil delivery channel is used to introduce refrigerant oil, and the other end of the oil delivery channel is located in the area surrounded by the vortex plate, and the oil delivery channel is used to deliver the refrigerant oil to the compression chamber formed by the fixed scroll and the movable scroll.

[0007] In an optional embodiment, the oil delivery channel includes a connecting hole section, an oil delivery hole section and an oil injection hole section which are connected in sequence, and one end of the connecting hole section away from the oil delivery hole section is located on the plate surface of the disk body away from the vortex plate, and one end of the oil injection hole section away from the oil delivery hole section is located in the area surrounded by the vortex plate.

[0008] Based on the above scheme, after the positions of the connecting hole section and the oil injection hole section are determined, that is, after the oil inlet position and the oil discharge position are determined, the connecting hole section and the oil injection hole section can be connected through the oil delivery hole section. In this way, the positions of the connecting hole section and the oil injection hole section can be flexibly selected, and the processing is convenient, which is conducive to transporting the refrigerant oil to a reasonable position.

[0009] In an optional embodiment, one end of the oil delivery hole section away from the oil injection hole section is located on the outer peripheral surface of the disc body, and a sealing member is installed on the disc body, and the sealing member is used to seal the port of the oil delivery hole section located on the outer peripheral surface.

[0010] Based on the above solution, drilling can be performed from the outer peripheral surface of the disc body to process the oil delivery hole section, which is convenient for processing and manufacturing the oil delivery hole section. In addition, the port of the oil delivery hole section is sealed by the plugging piece and is not easy to leak.

[0011] In an optional embodiment, there are multiple fuel injection hole segments, and the multiple fuel injection hole segments are connected to the connecting hole segment through the corresponding fuel delivery hole segment.

[0012] Based on the above scheme, multiple oil injection hole segments can be distributed on the disk body as needed, with more oil outlet positions and more uniform distribution of refrigeration oil, thereby improving lubrication efficiency and lubrication effect.

[0013] In an optional embodiment, the port of the oil injection hole section away from the oil delivery hole section is used to connect to the second compression chamber after the compressor suction is closed.

[0014] Based on the above scheme, by setting the outlet end of the oil injection hole section at a position corresponding to the second compression chamber, at this time, the compression chamber formed by the movable scroll and the static scroll has completed the air intake, and the refrigerant oil enters the second compression chamber from the oil injection hole section without affecting the volumetric efficiency and is not easy to affect the normal operation of the compressor.

[0015] In an optional embodiment, the electric scroll compressor lubrication structure also includes an oil-gas separator, an oil pipe and a heat exchanger, the inlet of the oil-gas separator is connected to the exhaust port on the static scroll plate, and the oil outlet of the oil-gas separator is connected to the oil channel through the oil pipe; the oil pipe cooperates with the heat exchanger to cool the refrigerant oil before it enters the oil channel.

[0016] Based on the above scheme, the high-pressure gas discharged from the exhaust port of the electric scroll compressor carries the refrigerant oil into the external oil-gas separator. After the gas and the refrigerant oil are separated, the refrigerant oil enters the oil pipeline and exchanges heat with the heat exchanger. The temperature of the refrigerant oil is reduced. The cooled refrigerant oil can return to the static scroll plate from the oil pipeline and enter the compression chamber from the oil delivery channel, directly contacting the scroll plate, and having a good lubrication effect. Since the temperature of the refrigerant oil is reduced, the performance of the compressor is not easily affected by high temperature.

[0017] In an optional embodiment, a fuel injection pipe is installed at the port of the fuel delivery pipe, and the fuel injection pipe is connected to the fuel delivery channel.

[0018] Based on the above solution, the oil delivery pipe and the oil delivery channel are conveniently connected through the oil injection pipe.

[0019] In an optional embodiment, the electric scroll compressor lubrication structure further includes a top cover, the movable scroll is mounted on the top cover, and the oil injection pipe passes through the top cover and is connected to the oil delivery pipe.

[0020] Based on the above solution, the oil injection pipe passes through the top cover, that is, it is arranged in the axial direction of the compressor, which is not easy to increase the radial size of the compressor.

[0021] In an optional embodiment, the fuel injection pipe is screwed and fixed to the top cover.

[0022] Based on the above scheme, the screw connection between the fuel injection pipe and the top cover is simple and reliable, and easy to disassemble and assemble. In addition, a sealing layer can be provided between the fuel injection pipe and the top cover, and when the fuel injection pipe is screwed and fixed on the top cover, the sealing layer is squeezed and deformed, thereby achieving a sealing effect.

[0023] In a second aspect, the present invention provides an electric scroll compressor assembly, the electric scroll compressor assembly comprising:

[0024] The electric scroll compressor lubrication structure according to any one of the aforementioned embodiments.

[0025] The beneficial effects of the embodiments of the present invention include, for example:

[0026] In summary, the electric scroll compressor lubrication structure provided in this embodiment provides an oil delivery channel on the disc body of the static scroll, so that the refrigerant oil separated from the compressed gas discharged from the exhaust port of the electric scroll compressor can be returned to the static scroll from the oil delivery channel, and the oil outlet is located at the vortex plate of the static scroll, so that the refrigerant oil quickly contacts the vortex plate to lubricate the vortex plate, and the lubrication effect is good. The compressed gas is led out of the static scroll, and after being separated by an external oil-gas separator, the refrigerant oil flows back to the static scroll, which is not easy to produce cross-flow, and the operation is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1A schematic cross-sectional view of a stationary scroll provided in an embodiment of the present invention from one viewing angle;

[0029] Figure 2 A cross-sectional schematic diagram of a static scroll provided by an embodiment of the present invention from another perspective;

[0030] Figure 3 An exploded schematic diagram of a lubrication structure of an electric scroll compressor provided by an embodiment of the present invention;

[0031] Figure 4 A cross-sectional schematic diagram of a lubrication structure of an electric scroll compressor provided by an embodiment of the present invention;

[0032] Figure 5 A schematic diagram of the flow of refrigeration oil in the lubrication structure of the electric scroll compressor provided by an embodiment of the present invention;

[0033] Figure 6 A schematic diagram of an electric scroll compressor assembly provided by an embodiment of the present invention;

[0034] Figure 7 for Figure 6 Schematic cross-sectional view along the AA axis.

[0035] icon:

[0036] 001-first compression chamber; 002-second compression chamber; 003-central chamber; 004-moving scroll; 100-stationary scroll; 110-disc body; 120-vortex plate; 130-oil delivery channel; 131-connecting hole section; 132-oil delivery hole section; 133-injection hole section; 140-blocking member; 150-exhaust port; 200-oil-gas separator; 300-oil delivery pipe; 310-oil injection control valve; 400-injection pipe; 500-heat exchanger; 600-top cover. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0040] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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.

[0041] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0042] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0043] In the oil return structure of the scroll compressor of the prior art, when the high-temperature and high-pressure oil-gas mixed fluid discharged from the exhaust port 150 of the stationary disk is output to the oil-gas separation structure, oil-gas separation begins. At this time, the high-temperature and high-pressure refrigerant gas is discharged through the air outlet of the compressor top cover 600, and the refrigeration oil flows back through the oil return channel due to gravity and pressure difference, and lubricates the friction pair of the scroll compressor, thereby realizing the recycling of the refrigeration oil. This separation scheme may have the risk of cross-flow between the high and low pressure sides, and the oil after throttling is still high-temperature oil, which also has a certain impact on the performance and reliability of the compressor. In addition, the path of the refrigeration oil reflux channel is single, and the refrigeration oil cannot be guided to flow back to various parts of the vortex. The refrigeration oil cannot fully lubricate the vortex, resulting in increased friction losses of the stationary scroll 100 and the movable scroll 004, reducing the reliability and service life of the electric scroll compressor.

[0044] In view of this, the designer provides a lubrication structure for an electric scroll compressor. The friction pair formed by the fixed scroll 100 and the movable scroll 004 has good lubrication effect, and the operating performance of the compressor is reliable.

[0045] Please refer to Figure 1 and Figure 2 The present embodiment provides a lubrication structure of an electric scroll compressor, which includes a fixed scroll 100. The fixed scroll 100 includes a disk body 110 and a scroll plate 120 that are connected. An oil delivery channel 130 is provided on the disk body 110. One end of the oil delivery channel 130 is used to introduce refrigerant oil. The other end of the oil delivery channel 130 is located in the area surrounded by the scroll plate 120. The oil delivery channel 130 is used to deliver the refrigerant oil to the compression chamber formed by the fixed scroll 100 and the movable scroll 004.

[0046] As described above, the working mode of the electric scroll compressor lubrication structure provided in this embodiment is as follows:

[0047] By setting an oil delivery channel 130 on the disk body 110 of the static scroll 100, the high-pressure oil-gas mixture discharged from the exhaust port 150 of the electric scroll compressor enters the external oil-gas separator 200, and the separated refrigerant oil can be returned to the static scroll 100 from the oil delivery channel 130, and the oil outlet is located at the vortex plate 120 of the static scroll 100. The refrigerant oil quickly contacts the vortex plate 120 to lubricate the vortex plate 120, and the lubrication effect is good. The compressed gas is led out of the static scroll 100, and after being separated by the external oil-gas separator 200, the refrigerant oil flows back to the static scroll 100, which is not easy to produce cross-flow, and the operation is safe and reliable.

[0048] The following embodiments illustrate the details of the lubrication structure of the electric scroll compressor of the present application by way of examples.

[0049] Please refer to Figure 1-Figure 5 In this embodiment, the lubrication structure of the electric scroll compressor includes a fixed scroll 100, an oil-gas separator 200, an oil pipeline 300, an oil injection pipe 400, a heat exchanger 500 and a top cover 600. The fixed scroll 100 is mounted on the top cover 600, and the two define a high-pressure chamber. The exhaust port 150 of the fixed scroll 100 is connected to the high-pressure chamber. The top cover 600 is provided with an air outlet. The compressed oil-gas mixture enters the high-pressure chamber from the exhaust port 150 and is then discharged from the air outlet. The air outlet can be connected to the oil-gas separator 200 through a pipeline, and the oil outlet of the oil-gas separator 200 is connected to the oil pipeline 300. The end of the oil pipeline 300 is installed with an oil injection pipe 400. The oil injection pipe 400 passes through the top cover 600 and is connected to the oil delivery channel 130 on the fixed scroll 100. The heat exchanger 500 cooperates with the oil delivery pipe 300, and the refrigerant in the heat exchanger 500 can exchange heat with the refrigeration oil in the oil delivery pipe 300, thereby reducing the temperature of the refrigeration oil. The cooled refrigeration oil flows back to the fixed scroll 100, which has a good lubrication effect and is not easily affected by high temperature. The operating performance of the compressor.

[0050] In addition, the high-temperature and high-pressure oil-gas mixture is drawn out from the static vortex 100, and the oil-gas separation is performed by the external oil-gas separator 200, so that gas cross-talk is not likely to occur. Moreover, the refrigerant oil flows in the oil delivery pipe 300, which is convenient for heat exchange with the heat exchanger 500 and for regulating the temperature of the refrigerant oil. In addition, an oil injection control valve 310 is provided on the oil delivery pipe 300, which can control the injection time and amount of the oil.

[0051] It should be understood that both the oil-gas separator 200 and the heat exchanger 500 can adopt existing known structures. In order to avoid repeated description, no detailed description is given in this embodiment. The oil-gas separator 200 can separate the oil and gas of the high-temperature and high-pressure oil-gas mixture. The separated gas refrigerant participates in the air conditioning refrigeration cycle, and the separated refrigeration oil returns to the compressor for recycling. The heat exchanger 500 can be a plate heat exchanger 500 or a tube heat exchanger 500, etc.

[0052] Please refer to Figure 1 and Figure 2 In this embodiment, optionally, the fixed scroll 100 includes an integrated disk body 110 and a vortex plate 120. The disk body 110 is provided with an oil discharge port and an oil delivery channel 130, and the oil discharge port and the oil delivery channel 130 are both provided through the disk body 110. Specifically, the oil delivery channel 130 includes a connecting hole section 131, two oil delivery hole sections 132 and two oil injection hole sections 133. The connecting hole section 131, the oil delivery hole section 132 and the oil injection hole section 133 can all be circular hole sections. The axis of the connecting hole section 131 is perpendicular to the disk body 110 of the fixed scroll 100, the axis of the oil delivery hole section 132 extends in the radial direction of the disk body 110, and the axis of the oil injection hole section 133 is perpendicular to the disk body 110. One end of the connecting hole section 131 is located on the side of the disk body 110 away from the vortex plate 120, and is used to plug the oil injection pipe 400, and the other end is connected to the two oil delivery hole sections 132 at the same time. The axes of the two oil delivery hole sections 132 have an angle, which is set as needed to enable the oil delivery hole section 132 to communicate with the connecting hole section 131 and the corresponding oil injection hole section 133, and the two oil delivery hole sections 132 intersect and communicate at the intersection, and the connecting hole section 131 communicates with the intersection of the two oil delivery hole sections 132. One end of the oil delivery hole section 132 extends to the outer peripheral surface of the disc body 110, and the other end of the oil delivery hole section 132 communicates with one end of the corresponding oil injection hole section 133, and the other end of the oil injection hole section 133 is located on the side of the disc body 110 where the swirl plate 120 is installed. The two oil injection hole sections 133 are located on both sides of the exhaust port 150.

[0053] Please refer to Figure 6 and Figure 7, and the ports of the two oil injection hole sections 133 correspond to the second compression chamber 002 after the compressor suction is closed, and the two oil injection hole sections 133 are connected to the second compression chamber 002. It should be understood that after the compressor suction is closed, the fixed scroll 100 and the movable scroll 004 define the first compression chamber 001, the second compression chamber 002 and the central chamber 003 from the outside to the center in sequence. The first compression chamber 001 can also be called a low-pressure chamber, the second compression chamber 002 can also be called a medium-pressure chamber, and the central chamber 003 can also be called a high-pressure chamber. By connecting the oil injection hole section 133 with the second compression chamber 002 after the suction is closed, in this state, the compression chamber formed by the movable scroll 004 and the fixed scroll 100 has completed the suction, and the refrigerant oil entering the second compression chamber 002 from the oil injection hole section 133 will not affect the volumetric efficiency, and it is not easy to affect the normal operation of the compressor.

[0054] It should be understood that the number of the oil injection hole segments 133 and the oil delivery hole segments 132 can be one or more, not limited to the two exemplified in this embodiment. Moreover, the number of the oil injection hole segments 133 and the oil delivery hole segments 132 is the same, and each oil delivery hole segment 132 can connect the connecting hole segment 131 and the corresponding oil injection hole segment 133. The multiple oil delivery hole segments 132 are all gathered together and connected with the connecting hole segment 131, that is, the refrigerant oil is input from the connecting hole segment 131, and the refrigerant oil can be output from different oil injection hole segments 133, which reduces the number of connecting hole segments 131 and reduces the processing difficulty. The oil injection pipe 400 can be directly plugged into the connecting hole segment 131 to facilitate the installation of the oil injection pipe 400. It is worth noting that when the number of the oil injection hole segments 133 is multiple, the ports of all the oil injection hole segments 133 can correspond to the area where the second compression chamber 002 formed after the compressor suction is closed.

[0055] At the same time, one end of the oil delivery hole section 132 is connected to the oil injection hole section 133, and the other end is located on the outer peripheral surface of the disc body 110. In this way, when processing the oil delivery hole section 132, drilling can be performed from the outer peripheral surface of the disc body 110, which is convenient for operation. A plugging member 140 is inserted into the oil delivery hole section 132, and the plugging member 140 can be used to plug the port of the oil delivery hole section 132 located on the outer peripheral surface of the disc body 110, thereby improving the sealing performance of the oil delivery hole section 132, and the refrigerant oil input from the connecting hole section 131 is not easy to leak from the port of the oil delivery hole section 132 located on the outer peripheral surface of the disc body 110.

[0056] It should be understood that the plugging member 140 may be a rubber plug. A rubber plug may be inserted into each oil delivery hole section 132.

[0057] In the present embodiment, optionally, the fuel injection pipe 400 includes a threaded tube body and an end cap. The threaded tube body and the end cap can be set as an integrated structure. The end cap is sleeved on the outside of the threaded tube body, and the end cap can be a hexagonal structure. A threaded hole is provided on the top cover 600, and the threaded tube body can be screwed with the threaded hole and inserted into the connecting hole section 131. The relative position of the fuel injection pipe 400 and the top cover 600 is fixed, and the static vortex 100 and the top cover 600 are relatively fixed, so that the relative position of the fuel injection pipe 400 and the static vortex 100 is stable and reliable. The fuel injection pipe 400 is installed by screwing, and tools can be used to cooperate with the end cap, which is convenient to apply force, not easy to slip, time-saving and labor-saving, and easy to operate.

[0058] In order to improve the sealing performance, a sealing layer may be provided between the threaded tube body and the top cover 600 .

[0059] It should be understood that the oil delivery pipe 300 and the oil injection pipe 400 can be fixedly connected by means of snap fastening or the like.

[0060] The electric scroll compressor lubrication structure provided in this embodiment is that the high-temperature and high-pressure oil-gas mixture discharged from the high-pressure chamber enters the oil-gas separator 200 from the exhaust port 150, and the refrigerant oil separated by the oil-gas separator 200 flows in the oil delivery pipe 300 and exchanges heat with the heat exchanger 500, the temperature of the refrigerant oil is reduced, and then enters the oil delivery channel 130 from the oil injection pipe 400, and finally enters the area surrounded by the vortex plate 120, effectively lubricating the friction pair formed by the vortex plate 120, and the lubrication effect is good. The high-temperature and high-pressure oil-gas mixture is led out of the static scroll 100, and the gas cross-talk phenomenon is not easy to occur, and the refrigerant oil is cooled before returning to the compressor. The refrigerant oil temperature is high, and the impact on the compressor is small, and the compressor operation is stable and reliable.

[0061] Please combine Figure 6 and Figure 7 This embodiment also provides an electric scroll compressor assembly, including an electric scroll compressor lubrication structure, and the electric scroll compressor assembly has at least the advantages of good lubrication effect of the friction pair formed by the movable scroll 004 and the fixed scroll 100, and stable and reliable operation of the compressor. Obviously, the electric scroll compressor also includes other components to achieve its basic functions. Please combine the existing known structure. In order to avoid repeated description, this embodiment will not be described in detail.

[0062] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A lubrication structure for an electric scroll compressor, characterized in that: include: A fixed scroll (100), wherein the fixed scroll (100) comprises a connected disk body (110) and a vortex plate (120), wherein an oil delivery channel (130) is provided on the disk body (110), wherein one end of the oil delivery channel (130) is used for introducing refrigeration oil, and the other end of the oil delivery channel (130) is located in an area surrounded by the vortex plate (120), and wherein the oil delivery channel (130) is used for delivering refrigeration oil to a compression chamber formed by the fixed scroll (100) and the movable scroll (004).

2. The electric scroll compressor lubrication structure according to claim 1, characterized in that: The oil delivery channel (130) comprises a connecting hole section (131), an oil delivery hole section (132) and an oil injection hole section (133) which are connected in sequence; an end of the connecting hole section (131) away from the oil delivery hole section (132) is located on a plate surface of the disk body (110) away from the vortex plate (120); and an end of the oil injection hole section (133) away from the oil delivery hole section (132) is located within an area enclosed by the vortex plate (120).

3. The electric scroll compressor lubrication structure according to claim 2, characterized in that: One end of the oil delivery hole section (132) away from the oil injection hole section (133) is located on the outer peripheral surface of the disc body (110), and a blocking member (140) is installed on the disc body (110). The blocking member (140) is used to block the port of the oil delivery hole section (132) located on the outer peripheral surface.

4. The electric scroll compressor lubrication structure according to claim 2, characterized in that: There are multiple oil injection hole sections (133), and each of the multiple oil injection hole sections (133) is connected to the connection hole section (131) via a corresponding oil delivery hole section (132).

5. The electric scroll compressor lubrication structure according to claim 2, characterized in that: The port of the oil injection hole section (133) away from the oil delivery hole section (132) is used to connect to the second compression chamber (002) after the compressor suction is closed.

6. The electric scroll compressor lubrication structure according to claim 1, characterized in that: The lubrication structure of the electric scroll compressor also includes an oil-gas separator (200), an oil delivery pipe (300) and a heat exchanger (500); the inlet of the oil-gas separator (200) is connected to the exhaust port (150) on the fixed scroll (100); the oil outlet of the oil-gas separator (200) is connected to the oil delivery channel (130) through the oil delivery pipe (300); the oil delivery pipe (300) cooperates with the heat exchanger (500) to cool the refrigeration oil before it enters the oil delivery channel (130).

7. The electric scroll compressor lubrication structure according to claim 6, characterized in that: An oil injection pipe (400) is installed at the end of the oil delivery pipe (300), and the oil injection pipe (400) is in communication with the oil delivery channel (130).

8. The electric scroll compressor lubrication structure according to claim 7, characterized in that: The electric scroll compressor lubrication structure further comprises a top cover (600), the movable scroll (004) is mounted on the top cover (600), and the oil injection pipe (400) passes through the top cover (600) and is connected to the oil delivery pipe (300).

9. The electric scroll compressor lubrication structure according to claim 8, characterized in that: The oil injection pipe (400) is screwed and fixed to the top cover (600).

10. An electric scroll compressor assembly, characterized in that: The electric scroll compressor assembly comprises: The electric scroll compressor lubrication structure according to any one of claims 1 to 9.

Images