Compression component and scroll compressor

Abstract

The utility model provides a compression part and a scroll compressor, belongs to compressor technical field, the compression part comprises a dynamic scroll plate and a static scroll plate, the dynamic scroll plate is arranged on the static scroll plate, the dynamic scroll plate and the static scroll plate rotate relative to each other, the static scroll plate is provided with a high pressure oil groove. A lubricating sinking groove is formed in the movable scroll plate, the lubricating sinking groove is annularly formed in a first base plate of the movable scroll plate, a first circular groove is formed in one end of the lubricating sinking groove, and a second circular groove is formed in one end of the high-pressure oil groove; and when the movable scroll plate rotates, the first circular groove and the second circular groove are periodically communicated. According to the compression component, lubricating oil in the high-pressure oil groove in the static scroll plate can enter the lubricating oil groove in the dynamic scroll plate, oil is intermittently supplied to the compression cavity of the pump body, the scroll plate tooth bottom and the scroll plate tooth bottom, and the scroll tooth crest and the tooth bottom of the dynamic scroll plate can be lubricated while the lubrication of the compression cavities of the dynamic scroll plate and the static scroll plate is enhanced; the friction power of dynamic and static discs is reduced and the reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a compression component and a scroll compressor. Background Art

[0002] A scroll compressor is a positive displacement compressor. The compression component consists of a moving scroll and a stationary scroll. During the compression process, the relative revolution of the moving scroll and the stationary scroll forms a continuous change in the enclosed volume to achieve the purpose of compressing gas. The contact surface between the moving scroll and the stationary scroll is sealed through a sliding friction pair, and corresponding lubricating oil needs to be set at the sliding friction pair. Since the scroll compressor has no reciprocating motion mechanism, its structure is relatively simple, with fewer parts, especially fewer vulnerable parts, making it small in size, light in weight, and convenient for installation and maintenance.

[0003] In the existing scroll compressor, the lubrication inside the cavities of the moving scroll and the stationary scroll is mainly achieved by the refrigerant mixed with lubricating oil in the system. The refrigerant mixed with lubricating oil is brought into the pump body through the suction pipe to lubricate the contact surface between the moving scroll and the stationary scroll. However, this lubrication method has poor effect under low-temperature working conditions. Because under low-temperature working conditions, the suction temperature and pressure of the compressor are relatively low, the lubricating oil is insufficiently dissolved in the refrigerant, and the viscosity of the lubricating oil is relatively low, resulting in poor lubrication effect and possible wear of the moving and stationary scrolls.

[0004] Therefore, it is necessary to improve the existing scroll compressor to overcome the defects of the prior art. Summary of the Utility Model

[0005] To overcome the problems existing in the related art, one of the purposes of the utility model is to provide a compression component. When the moving scroll rotates, the compression component can use the periodic communication between the first circular groove and the second circular groove to enable the lubricating oil in the high-pressure oil groove on the stationary scroll to enter the lubricating oil groove of the moving scroll, intermittently supply oil to the compression cavity of the pump body, the bottom of the scroll teeth, and inside the bottom of the scroll teeth, enhance the lubrication of the compression cavities of the moving scroll and the stationary scroll, and at the same time lubricate the top and bottom of the scroll teeth of the moving scroll, reduce the friction power between the moving and stationary disks, and improve the reliability.

[0006] A compression component includes a moving scroll and a stationary scroll. The moving scroll is arranged on the stationary scroll, and the moving scroll rotates relative to the stationary scroll. A high-pressure oil groove is arranged on the stationary scroll.

[0007] A lubricating sink is arranged on the moving scroll. The lubricating sink is annularly arranged on the first substrate of the moving scroll. One end of the lubricating sink is provided with a first circular groove, and one end of the high-pressure oil groove is provided with a second circular groove. When the moving scroll rotates, the first circular groove and the second circular groove are periodically communicated.

[0008] The compression component of the present application is used in a scroll compressor. Through the periodically connected first circular groove and second circular groove, the effective transmission of lubricating oil from the stationary scroll plate to the moving scroll plate is achieved, ensuring sufficient lubrication of key parts of the moving scroll plate, including the pump body compression chamber, the bottom and top of the scroll teeth. The intermittent supply of lubricating oil significantly reduces the friction between the moving scroll plate and the stationary scroll plate, reduces the friction power generated thereby, and thus improves the overall energy efficiency of the compression component. Due to the improvement of lubrication conditions, the wear between the moving scroll plate and the stationary scroll plate is reduced, the service life of the component is extended, and the reliability and durability of the compression component are improved.

[0009] In a preferred technical solution of the present utility model, the moving scroll plate includes a first substrate and moving scroll teeth, and the moving scroll teeth and the lubricating sink are both arranged on the first substrate;

[0010] The lubricating sink is arranged on one side of the moving scroll teeth, and the axial direction of the lubricating sink is arranged along the axial direction of the moving scroll teeth.

[0011] By arranging the lubricating sink on one side of the moving scroll teeth and making its axial direction along the axial direction of the moving scroll teeth, it is ensured that the lubricating oil can be evenly distributed to each part of the moving scroll teeth, improving the lubrication effect.

[0012] In a preferred technical solution of the present utility model, the cross-section of the lubricating sink is arc-shaped, V-shaped or U-shaped, and / or the cross-section of the high-pressure oil groove is arc-shaped, V-shaped or U-shaped.

[0013] In a preferred technical solution of the present utility model, the depth H of the lubricating sink ≤ 10 μm, and the width D1 of the lubricating sink is greater than 2 mm. The arc-shaped high-pressure oil groove can provide a stable lubricating oil pressure to ensure the smooth flow of the lubricating oil; the V-shaped high-pressure oil groove helps to guide the lubricating oil to the connection of the first circular groove and the second circular groove to achieve rapid replenishment of the lubricating oil; while the U-shaped high-pressure oil groove can store more lubricating oil to meet the lubrication requirements during high load or high-speed operation. And the lubricating sink is at the bottom surface of the first substrate, cooperating with the top surface of the teeth of the second substrate, at the separation surface of the inner and outer compression chambers of the compression chamber. If H is too large, it will cause leakage of the inner and outer chambers of the compression. This design can ensure that the lubrication degree meets the design requirements and will not cause compression leakage.

[0014] In a preferred technical solution of the present utility model, the width of the lubricating sink is D1, and the width of the moving scroll teeth is D2, where 2 mm < D1 < D2, and the units of D1 and D2 are both mm.

[0015] This design ensures that the lubricating sink can effectively provide sufficient lubrication for the moving scroll teeth, while avoiding unnecessary waste in structure due to excessive width.

[0016] In a preferred technical solution of the present utility model, the minimum distance between the edge of the lubricating sink and the edge of the moving scroll tooth is 0 mm, and the maximum distance is the pitch Pt - 1 / 2D1 of the moving scroll tooth, where the units of Pt and D1 are both mm. Such a setting not only ensures that there is enough space between the lubricating sink and the moving scroll tooth to accommodate lubricating oil, but also avoids excessive gaps that may cause leakage and waste of lubricating oil.

[0017] In a preferred technical solution of the present utility model, the stationary scroll plate includes a second substrate and stationary scroll teeth, and both the stationary scroll teeth and the high-pressure oil groove are provided on the second substrate;

[0018] The stationary scroll teeth form a compression chamber on the second substrate, and the high-pressure oil groove is provided on the periphery of the compression chamber.

[0019] Setting the high-pressure oil groove on the periphery of the compression chamber can ensure that when the compressor is operating, the lubricating oil can flow smoothly to the mating surface of the moving scroll plate and the stationary scroll plate, providing sufficient lubrication and reducing friction and wear.

[0020] In a preferred technical solution of the present utility model, the moving scroll plate is arranged behind the stationary scroll plate, and their axes coincide;

[0021] In the cross-section of the stationary scroll plate, the coordinates of the center of the first circular groove are Dx1, Dy1, and the radius is R1; the coordinates of the center of the second circular groove are Jx1, Jy1, and the radius is R2;

[0022] Wherein:

[0023] E - R1 - R2 < Dx1 - Jx1 < R1 + R2 - E;

[0024] E - R1 - R2 < Dy1 - Jy1 < R1 + R2 - E;

[0025] Wherein, E is the crankshaft eccentricity of the compression component in the scroll compressor; Dx1 is the distance between the center of the first circular groove and the X-axis in the two-dimensional coordinate system with the axis of the stationary scroll plate as the origin in the cross-section of the moving scroll plate; Dy1 is the distance between the center of the first circular groove and the Y-axis in the two-dimensional coordinate system with the axis of the stationary scroll plate as the origin in the cross-section of the moving scroll plate; Jx1 is the distance between the center of the second circular groove and the X-axis in the two-dimensional coordinate system with the axis of the stationary scroll plate as the origin in the cross-section of the stationary scroll plate; Jy1 is the distance between the center of the second circular groove and the Y-axis in the two-dimensional coordinate system with the axis of the stationary scroll plate as the origin in the cross-section of the stationary scroll plate.

[0026] In practical applications, under the condition that the eccentricity E of the crankshaft remains unchanged, by changing the parameters of R1 / R2 / Dx1 / Dy1 / Jx1 / Jy1, the communication angle between the high-pressure oil groove of the second substrate and the lubricating sink of the first substrate is adjusted to meet different requirements.

[0027] The second object of the present utility model is to provide a scroll compressor, including a housing, in which a motor is arranged, and the compression component as described above is arranged above the motor.

[0028] In a preferred technical solution of the present utility model, a main shaft is arranged in the motor, the main shaft is fixedly connected to the moving scroll plate, and an overload protector is arranged on the motor.

[0029] The beneficial effects of the present utility model are as follows:

[0030] A compression component provided by the present utility model includes a moving scroll plate and a stationary scroll plate. The moving scroll plate is arranged on the stationary scroll plate and rotates relative to the stationary scroll plate. A high-pressure oil groove is arranged on the stationary scroll plate. A lubricating sink is arranged on the moving scroll plate. The lubricating sink is annularly arranged on the first substrate of the moving scroll plate. One end of the lubricating sink is provided with a first circular groove, and one end of the high-pressure oil groove is provided with a second circular groove; when the moving scroll plate rotates, the first circular groove and the second circular groove are periodically communicated. This compression component can, when the moving scroll plate rotates, utilize the periodic communication between the first circular groove and the second circular groove to enable the lubricating oil in the high-pressure oil groove on the stationary scroll plate to enter the lubricating oil groove on the moving scroll plate. This design can intermittently and continuously supply oil to the pump body compression chamber, the bottom of the scroll teeth, and inside the bottom of the scroll teeth, enhance the lubrication of the compression chambers of the moving scroll plate and the stationary scroll plate, while also lubricating the top and bottom of the scroll teeth of the moving scroll plate. Sufficient lubrication reduces component wear and the risk of failure, extends the service life of the compressor, reduces the friction power between the stationary and moving plates, and can improve the reliability of the compressor.

[0031] The present application also provides a scroll compressor including the above compression component. The lubrication between the moving scroll plate and the stationary scroll plate of this compressor is good, which can reduce the friction power between the stationary and moving plates and improve reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a perspective view of the compression component provided by the present utility model;

[0033] Figure 2 is a structural schematic diagram of the stationary scroll plate provided by the present utility model;

[0034] Figure 3 is a structural schematic diagram of the moving scroll plate provided by the present utility model;

[0035] Figure 4It is a schematic structural diagram of the dynamic scroll plate and the static scroll plate provided by the present utility model with a relative angle of A1;

[0036] Figure 5 It is a schematic structural diagram of the dynamic scroll plate and the static scroll plate provided by the present utility model with a relative angle of A2;

[0037] Figure 6 It is a schematic structural diagram of the dynamic scroll plate and the static scroll plate provided by the present utility model with a relative angle of A3;

[0038] Figure 7 It is a schematic structural diagram of the dynamic scroll plate and the static scroll plate provided by the present utility model with a relative angle of A4;

[0039] Figure 8 It is a schematic structural diagram of the communication state of the first circular groove and the second circular groove provided by the present utility model;

[0040] Figure 9 It is a schematic structural diagram of the non - communication state of the first circular groove and the second circular groove provided by the present utility model;

[0041] Figure 10 It is a schematic structural diagram of the scroll compressor of the present utility model.

[0042] Reference numerals:

[0043] 1, static scroll plate; 11, second substrate; 12, static scroll plate teeth; 13, high - pressure oil groove; 14, second circular groove; 2, dynamic scroll plate; 21, first substrate; 22, dynamic scroll plate teeth; 23, lubrication sink; 24, first circular groove; 100, housing; 101, motor; 102, main shaft. Detailed implementation manners

[0044] The preferred embodiments of the present utility model will be described in more detail with reference to the accompanying drawings. Although the preferred embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present utility model will be more thorough and complete, and can fully convey the scope of the present utility model to those skilled in the art.

[0045] A scroll compressor is a positive - displacement compressor. The compression components are composed of a dynamic scroll plate and a static scroll plate. During the compression process, the relative revolution movement of the dynamic scroll plate and the static scroll plate is used to form a continuous change in the closed volume to achieve the purpose of compressing gas. The contact surface between the dynamic scroll plate and the static scroll plate is sealed through a sliding friction pair, and corresponding lubricating oil needs to be provided at the sliding friction pair. The scroll compressor has no reciprocating motion mechanism, so its structure is relatively simple, the number of parts is small, especially the number of vulnerable parts is small, which makes it small in size, light in weight and convenient for installation and maintenance.

[0046] In the existing scroll compressor, the lubrication inside the cavities of the moving scroll disk and the stationary scroll disk is mainly achieved by the refrigerant mixed with lubricating oil in the system. The refrigerant mixed with lubricating oil is brought into the pump body through the suction pipe to lubricate the contact surface between the moving scroll disk and the stationary scroll disk. However, this lubrication method has poor effect under low-temperature working conditions. Because under low-temperature working conditions, the suction temperature and pressure of the compressor are relatively low, the lubricating oil is insufficiently dissolved in the refrigerant, and the viscosity of the lubricating oil is relatively low, resulting in poor lubrication effect and possible wear of the moving and stationary scroll disks.

[0047] Based on this, the present application provides a compression component.

[0048] Embodiment 1

[0049] As Figures 1 - 9 shown, a compression component provided in this embodiment includes a moving scroll disk 2 and a stationary scroll disk 1. The moving scroll disk 2 is disposed on the stationary scroll disk 1, and the moving scroll disk 2 rotates relative to the stationary scroll disk 1. A high-pressure oil groove 13 is provided on the stationary scroll disk 1. Specifically, an air inlet and an air outlet are provided on the stationary scroll disk 1.

[0050] A lubricating sink 23 is provided on the moving scroll disk 2. The lubricating sink 23 is annularly arranged on the first substrate 21 of the moving scroll disk 2. One end of the lubricating sink 23 is provided with a first circular groove 24, and one end of the high-pressure oil groove 13 is provided with a second circular groove 14. When the moving scroll disk 2 rotates, the first circular groove 24 is periodically communicated with the second circular groove 14.

[0051] In actual application, this compression component is used in a scroll compressor. The stationary scroll disk 1 is fixed to the top of the housing 100 of the scroll compressor. The moving scroll disk 2 is disposed in the stationary scroll disk 1 and rotates relative to the stationary scroll disk 1 to achieve the compression function. The housing 100 of the scroll compressor is adapted to store lubricating oil. The scroll compressor further includes a crankshaft. The crankshaft includes a shaft body and an eccentric part. An oil suction channel is provided inside the crankshaft, and the inlet end of the oil suction channel is adapted to be immersed in the lubricating oil.

[0052] This compression component can, when the moving scroll disk 2 rotates, make the lubricating oil in the high-pressure oil groove 13 on the stationary scroll disk 1 enter the lubricating oil groove of the moving scroll disk 2 by using the periodic communication between the first circular groove 24 and the second circular groove 14. In actual application,

[0053] When the moving scroll disk 2 rotates one circle, the first circular groove 24 is communicated with the second circular groove 14 once. At this time, the lubricating oil enters the lubricating sink 23 from the high-pressure oil groove 13.

[0054] This design can supply oil intermittently and continuously to the compression chamber of the pump body, the bottom of the scroll teeth of the scroll plate, and the inside of the bottom of the scroll teeth of the scroll plate. While enhancing the lubrication of the compression chambers of the moving scroll plate and the stationary scroll plate 1, it can lubricate the top and bottom of the scroll teeth of the moving scroll plate 2. Sufficient lubrication reduces component wear and the risk of failure, extends the service life of the compressor, reduces the friction power between the moving and stationary plates, and thus improves the overall energy efficiency of the compression components.

[0055] Embodiment 2

[0056] This embodiment is an improvement based on Embodiment 1.

[0057] As Figures 1 - 9 shown, in this embodiment, the moving scroll plate 2 includes a first substrate 21 and moving scroll teeth 22, and the moving scroll teeth 22 and the lubricating sink 23 are both arranged on the first substrate 21;

[0058] The lubricating sink 23 is arranged on one side of the moving scroll teeth 22, and the axis direction of the lubricating sink 23 is arranged along the axis direction of the moving scroll teeth 22.

[0059] These moving scroll teeth 22 are key components in the scroll compressor. They cooperate with the stationary scroll teeth 12 to form multiple compression chambers to achieve gas compression. The lubricating sink 23 is specially designed to extend along the axis direction of the moving scroll teeth 22 to ensure that the lubricating oil can be evenly distributed to all parts of the moving scroll teeth 22. When the moving scroll plate 2 rotates relative to the stationary scroll plate 1, through the periodic connection of the first circular groove 24 and the second circular groove 14, the lubricating oil in the high-pressure oil groove 13 will be introduced into the lubricating sink 23 and flow along the axis direction of the lubricating sink 23, thus achieving sufficient lubrication of the moving scroll teeth 22. Sufficient lubrication can significantly reduce the friction and wear between the moving scroll teeth 22 and the stationary scroll teeth 12, and extend the service life of the compression components.

[0060] Embodiment 3

[0061] This embodiment is an improvement based on Embodiment 2.

[0062] As Figures 1 - 9 shown, in this embodiment, the cross-section of the lubricating sink 23 is arc-shaped, V-shaped or U-shaped, and / or the cross-section of the high-pressure oil groove 13 is arc-shaped, V-shaped or U-shaped. These shapes all contribute to the flow and distribution of the lubricating oil in the sink.

[0063] The lubricating groove 23 with an arc-shaped cross-section can provide a uniform lubricating layer, reducing the accumulation and waste of lubricating oil; the lubricating groove 23 with a V-shaped cross-section helps to guide the lubricating oil to various parts of the moving scroll tooth 22, improving the lubrication effect; while the lubricating groove 23 with a U-shaped cross-section can accommodate more lubricating oil to a certain extent, ensuring continuous lubrication supply.

[0064] The arc-shaped high-pressure oil groove 13 can provide a stable lubricating oil pressure, ensuring the smooth flow of lubricating oil; the V-shaped high-pressure oil groove 13 helps to direct the lubricating oil to the connection between the first circular groove 24 and the second circular groove 14, realizing the rapid replenishment of lubricating oil; while the U-shaped high-pressure oil groove 13 can store more lubricating oil to meet the lubrication requirements during high-load or high-speed operation.

[0065] By optimizing the cross-sectional shapes of the lubricating groove 23 and the high-pressure oil groove 13, the fluidity and distribution uniformity of the lubricating oil can be further improved, thereby enhancing the lubrication effect on the moving scroll tooth 22. And a reasonable cross-sectional design can reduce the accumulation and leakage of lubricating oil, reducing the consumption and waste of lubricating oil. In addition, the design of multiple cross-sectional shapes enables the lubrication system to better adapt to different working conditions and lubrication requirements, improving the adaptability and reliability of the compressor.

[0066] In a better implementation manner of this embodiment, the depth H of the lubricating groove 23 satisfies H ≤ 10 μm, and the width D1 of the lubricating groove 23 is greater than 2 mm. The lubricating groove 23 is located at the bottom surface of the first substrate 21 and cooperates with the tooth top surface of the second substrate 11, at the compression chamber internal and external compression chamber partition surface. If H is too large, it will cause compression leakage between the internal and external cavities. This design can ensure that the lubrication degree meets the design requirements without causing compression leakage.

[0067] Embodiment 4

[0068] This embodiment is an improvement based on Embodiment 3.

[0069] As Figures 1 - 9 shown, in a more specific and optimized technical solution of this application, the width of the lubricating groove 23 and its relative position with respect to the moving scroll tooth 22 are precisely set.

[0070] In this embodiment, the width of the lubricating groove 23 is D1, and the width of the moving scroll tooth 22 is D2, where 2 mm < D1 < D2. This design ensures that the lubricating groove 23 can effectively provide sufficient lubrication for the moving scroll tooth 22, while avoiding unnecessary waste in structure due to an overly large width. The width D1 is optimized to be between 2 mm and D2, that is, 2 mm < D1 < D2. Such a setting not only ensures the lubrication effect but also takes into account the structural compactness and manufacturing cost.

[0071] In this embodiment, the minimum distance between the edge of the lubricating groove 23 and the edge of the moving scroll tooth 22 is 0 mm, and the maximum distance is the pitch Pt of the moving scroll tooth 22 minus 1 / 2D1. The relative position between the edge of the lubricating groove 23 and the edge of the moving scroll tooth 22 is also precisely controlled. The minimum distance is set to 0 mm, which means that the lubricating groove 23 can be adjacent to the edge of the moving scroll tooth 22 to provide lubrication to the greatest extent. The maximum distance is set to the pitch Pt of the moving scroll tooth 22 minus 1 / 2D1, that is, Pt - 1 / 2D1. Such a setting not only ensures that there is enough space between the lubricating groove 23 and the moving scroll tooth 22 to accommodate lubricating oil, but also avoids excessive gaps that may cause leakage and waste of lubricating oil.

[0072] In this embodiment, by precisely setting the width of the lubricating groove 23 and its relative position with respect to the moving scroll tooth 22, it can be ensured that the lubricating oil can be evenly distributed over various parts of the moving scroll tooth 22, thereby improving the lubrication effect. By optimizing the width and position of the lubricating groove 23, while ensuring the lubrication effect, the compressor structure can be made more compact and the manufacturing cost can be reduced.

[0073] Embodiment 5

[0074] This embodiment is an improvement based on Embodiment 1.

[0075] As Figures 1 - 9 shown, in this embodiment, the stationary scroll 1 includes a second substrate 11 and stationary scroll teeth 12, and the stationary scroll teeth 12 and the high-pressure oil groove 13 are both provided on the second substrate 11;

[0076] The stationary scroll teeth 12 form a compression chamber on the second substrate 11, and the high-pressure oil groove 13 is provided on the periphery of the compression chamber.

[0077] The high-pressure oil groove 13 is specially designed on the periphery of the compression chamber so that it can store and provide sufficient lubricating oil when the compressor is operating to meet the lubrication requirements between the moving scroll 2 and the stationary scroll 1. At the same time, the setting of the high-pressure oil groove 13 can also help balance the pressure inside the compressor and improve the stability and reliability of the compressor.

[0078] Embodiment 6

[0079] As Figures 1 - 9 shown, this embodiment provides a design method for the lubricating groove 23. To ensure that the high-pressure oil groove 13 of the stationary scroll 1 can communicate with the lubricating groove 23 of the moving scroll 2, the lubricating groove 23 and the high-pressure oil groove 13 need to meet the following conditions

[0080] In this embodiment, the moving scroll disk 2 is disposed behind the stationary scroll disk 1, and their axes coincide; this ensures the basis for their correct cooperation and the formation of a compression chamber.

[0081] In the cross-section of the stationary scroll disk 1, the coordinates of the center of the first circular groove 24 are Dx1, Dy1, and the radius is R1; the coordinates of the center of the second circular groove 14 are Jx1, Jy1, and the radius is R2;

[0082] Wherein:

[0083] E - R1 - R2 < Dx1 - Jx1 < R1 + R2 - E;

[0084] E - R1 - R2 < Dy1 - Jy1 < R1 + R2 - E;

[0085] Wherein, E is the eccentricity of the crankshaft when the compression component is disposed in the scroll compressor; Dx1 is the distance between the center of the first circular groove 24 and the X-axis in the two-dimensional coordinate system with the axis of the stationary scroll disk 1 as the origin in the cross-section of the moving scroll disk 2; Dy1 is the distance between the center of the first circular groove 24 and the Y-axis in the two-dimensional coordinate system with the axis of the stationary scroll disk 1 as the origin in the cross-section of the moving scroll disk 2; Jx1 is the distance between the center of the second circular groove 14 and the X-axis in the two-dimensional coordinate system with the axis of the stationary scroll disk 1 as the origin in the cross-section of the stationary scroll disk 1; Jy1 is the distance between the center of the second circular groove 14 and the Y-axis in the two-dimensional coordinate system with the axis of the stationary scroll disk 1 as the origin in the cross-section of the stationary scroll disk 1.

[0086] In actual applications, under the condition that the crankshaft eccentricity E remains unchanged, by changing the parameters of R1 / R2 / Dx1 / Dy1 / Jx1 / Jy1, the communication angle between the high-pressure oil groove 13 of the second substrate 11 and the lubricating sink 23 of the first substrate 21 is adjusted to meet different requirements.

[0087] Embodiment 7

[0088] As Figures 1 - 10 shown, this embodiment provides a scroll compressor, which includes a housing 100. A motor 101 is disposed in the housing 100, and the compression component as described above is disposed above the motor 101.

[0089] In this embodiment, a main shaft 102 is provided in the motor 101. The main shaft 102 is fixedly connected to the moving scroll disk 2. An overload protector is provided on the motor 101. The overload protector can automatically cut off the power supply when the motor 101 bears an excessive load, preventing the motor 101 from being damaged due to overload. In this way, even if abnormal situations occur during use, such as too high gas pressure or the compressor working continuously for a long time, the overload protector can respond in time to protect the motor 101 and the compressor from being damaged.

[0090] This compressor mainly consists of a moving scroll disk 2, a stationary scroll disk 1, an upper bracket, a crankshaft, a motor 101, etc. The exhaust gas of the compressor directly enters the internal cavity of the compressor housing 100. All the internal cavities of the compressor housing 100 are under the high pressure of the compressor exhaust pressure. The high-pressure refrigerant oil of the compressor is located at the bottom of the compressor housing 100. The motor 101 of the compressor drives the crankshaft to rotate, and at the same time drives the oil pump located at the bottom end of the crankshaft to rotate. The oil pump pumps the refrigerant oil located at the bottom of the compressor housing 100 into the pump body through the central oil hole of the crankshaft. The high-pressure refrigerant oil enters the high-pressure oil groove 13 on the upper bracket through the bearing clearance, and reaches the lubricating oil groove communicated with the moving scroll disk 2 through the high-pressure oil groove 13 on the stationary scroll disk 1, and then lubricates the inside of the compression chamber pump body.

[0091] The following provides the lubrication process of the moving scroll disk 2 and the stationary scroll disk 1 of this compressor:

[0092] See Figures 4 - 7 . The moving scroll disk 2 of the compressor rotates counterclockwise. When the moving disk moves to the Figure 4 position, the relative angle between the moving scroll disk and the stationary scroll disk 1 is A1, and the lubricating sink 23 on the first substrate 21 of the moving scroll disk 2 is not communicated with the second circular groove 14 of the high-pressure oil groove 13 of the stationary scroll disk 1; when the moving scroll disk 2 rotates counterclockwise to the Figure 5 , the lubricating sink 23 on the first substrate 21 of the moving scroll disk 2 is communicated with the second circular groove 14 of the high-pressure oil groove 13 of the stationary scroll disk 1, and high-pressure lubricating oil continuously enters the lubricating sink 23 on the first substrate 21 of the moving scroll disk 2. The lubricating oil enters the pump body through the gap between the lubricating sink 23 on the first substrate 21 of the moving scroll disk 2 and the communicated lubricating sink 23. At the same time, the high-pressure lubricating oil brings the substrate in the inner cavity of the moving scroll disk 2 and the teeth of the stationary scroll disk 1 through the lubricating sink 23 on the first substrate 21 of the moving scroll disk 2, and lubricates the sliding contact pairs of the teeth of the moving scroll disk 22, the top and bottom of the teeth of the stationary scroll disk 1, the contact substrate, and the side walls of the scroll teeth in the pump body. As shown in Figures 5 - 6 , the communication angle A2 - A3; the moving scroll disk 2 continues to rotate counterclockwise, the first circular groove 24 of the lubricating sink 23 on the first substrate 21 of the moving scroll disk 2 is disengaged from the second circular groove 14 of the high-pressure oil groove 13 of the stationary scroll disk 1, and the high-pressure lubricating oil stops entering the lubricating sink 23 of the moving scroll disk 2, and the lubrication ends, as shown inFigure 7 As shown. When the moving scroll disk 2 rotates one circle, the communication angle of the lubricating oil inside the pump body of the moving and static scroll disks 1 is A1 - A4.

[0093] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Without further statement, the above terms have no special meaning, so it cannot be understood as a limitation on the protection scope of this application.

[0094] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A compression component, comprising an orbiting scroll (2) and a fixed scroll (1), wherein the orbiting scroll (2) is arranged on the fixed scroll (1), and the orbiting scroll (2) and the fixed scroll (1) rotate relative to each other, and a high-pressure oil groove (13) is arranged on the fixed scroll (1), characterized in that: The movable scroll (2) is provided with a lubricating groove (23), which is arranged in an annular shape on a first base plate (21) of the movable scroll (2), one end of the lubricating groove (23) is provided with a first circular groove (24), and one end of the high-pressure oil groove (13) is provided with a second circular groove (14); when the movable scroll (2) rotates, the first circular groove (24) is periodically connected to the second circular groove (14).

2. The compression component according to claim 1, characterized in that: The movable scroll (2) comprises a first substrate (21) and movable scroll teeth (22), wherein the movable scroll teeth (22) and the lubricating grooves (23) are both arranged on the first substrate (21); The lubricating groove (23) is arranged on one side of the movable scroll tooth (22), and the axial direction of the lubricating groove (23) is arranged along the axial direction of the movable scroll tooth (22).

3. The compression component according to claim 2, characterized in that: The cross section of the lubricating sink groove (23) is arc-shaped, V-shaped or U-shaped, and / or the cross section of the high-pressure oil groove (13) is arc-shaped, V-shaped or U-shaped.

4. The compression component according to claim 3, characterized in that: The depth H of the lubricating groove (23) is ≤10 μm, and the width D1 of the lubricating groove (23) is greater than 2 mm, with the unit of D1 being mm.

5. The compression component according to claim 2, characterized in that: The width of the lubricating groove (23) is D1, and the width of the movable scroll tooth (22) is D2, wherein 2 mm < D1 < D2, and the units of D1 and D2 are both mm.

6. The compression component according to claim 2, characterized in that: The minimum distance between the edge of the lubricating groove (23) and the edge of the movable scroll tooth (22) is 0 mm, and the maximum distance is the pitch Pt-1 / 2D1 of the movable scroll tooth (22), and the units of Pt and D1 are both mm.

7. The compression component according to any one of claims 1 to 6, characterized in that: The fixed scroll (1) comprises a second substrate (11) and fixed scroll teeth (12), wherein the fixed scroll teeth (12) and the high-pressure oil groove (13) are both arranged on the second substrate (11); The fixed scroll disc teeth (12) form a compression chamber on the second substrate (11), and the high-pressure oil groove (13) is arranged on the periphery of the compression chamber.

8. The compression component according to claim 7, characterized in that: The movable scroll (2) is arranged behind the fixed scroll (1), and the axes of the two scrolls coincide with each other; On the cross section of the fixed scroll (1), the coordinates of the center of the first circular groove (24) are Dx1 and Dy1, and the radius is R1; the coordinates of the center of the second circular groove (14) are Jx1 and Jy1, and the radius is R2; in: E-R1-R2<Dx1-Jx1<R1+R2-E; E-R1-R2<Dy1-Jy1<R1+R2-E; Wherein, E is the eccentricity of the crankshaft of the compression component arranged in the scroll compressor; Dx1 is the distance between the center of the first circular groove (24) and the X-axis in the two-dimensional coordinate system with the axis of the static scroll (1) as the origin in the cross section of the movable scroll (2); Dy1 is the distance between the center of the first circular groove (24) and the Y-axis in the two-dimensional coordinate system with the axis of the static scroll (1) as the origin in the cross section of the movable scroll (2); Jx1 is the distance between the center of the second circular groove (14) and the X-axis in the two-dimensional coordinate system with the axis of the static scroll (1) as the origin in the cross section of the static scroll (1); Jy1 is the distance between the center of the second circular groove (14) and the Y-axis in the two-dimensional coordinate system with the axis of the static scroll (1) as the origin in the cross section of the static scroll (1).

9. A scroll compressor, comprising a housing (100), wherein a motor (101) is disposed in the housing (100), characterized in that: A compression component as described in any one of claims 1 to 8 is arranged above the motor (101).

10. The scroll compressor according to claim 9, characterized in that: The motor (101) is provided with a main shaft (102), the main shaft (102) is fixedly connected to the movable scroll (2), and an overload protector is provided on the motor (101).

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