Buffer oil storage structure, stator, motor, and compressor

Abstract

The present invention discloses a buffer oil storage structure, a stator, a motor, and a compressor, wherein the buffer oil storage structure includes: a stator body, a blocking portion is provided on the outer edge of the stator body, a hollow oil storage space is formed in the blocking portion, the oil storage space is used to store refrigeration oil, and a first hole and a second hole are respectively opened on both sides of the blocking portion in the horizontal direction, the first hole is connected to the oil storage space and one side of the blocking portion, and the second hole is connected to the oil storage space and the other side of the blocking portion, and the horizontal height of the first hole is greater than the horizontal height of the second hole. Through the application of the present invention, a buffer oil storage structure with a certain damping storage of refrigeration oil is provided, which is particularly suitable for the stator of the motor of the compressor, and can effectively buffer the large amount of oil discharge caused by the high-speed startup or rapid speed increase of the compressor, avoid the subsequent oil-deficient operation of the compressor in a short period of time, and reduce the occurrence of poor lubrication.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a buffer oil storage structure, a stator, a motor, and a compressor. Background Art

[0002] Currently, many mechanical equipment are equipped with corresponding compressor structures. For example, the more common horizontal electric scroll compressor for automobiles generally does not have a specially designed oil pool structure. Most of the refrigerant oil in the compressor is directly stored in the bottom space of the motor cavity inside the compressor. However, in the actual use of the compressor, there are often high-speed startup, high speed acceleration rate, and high-speed operation conditions. In this case, the cooling oil in the motor cavity will be discharged with the high-speed refrigerant airflow, and the oil output at this time is far greater than the actual lubrication requirements of the compressor. This also causes the compressor to run short of oil in a short period of time, resulting in poor lubrication and greatly reducing the service life of the compressor. Summary of the Invention

[0003] In view of this, in order to solve the above problems, the object of the present invention is to provide a buffer oil storage structure, which is characterized in that it includes: a stator body, a blocking portion is provided on the outer edge of the stator body, a hollow oil storage space is formed in the blocking portion, and the oil storage space is used to store refrigeration oil, and the blocking portion is respectively provided with a first hole and a second hole on both sides along the horizontal direction, the first hole is connected to the oil storage space and one side of the blocking portion, and the second hole is connected to the oil storage space and the other side of the blocking portion, and the horizontal height of the first hole is greater than the horizontal height of the second hole.

[0004] In another preferred embodiment, the second hole is a damping hole.

[0005] In another preferred embodiment, the first hole is a damping hole.

[0006] In another preferred embodiment, at least one oil hole is formed on the stator body in a horizontal direction.

[0007] In another preferred embodiment, the level of the oil hole is smaller than the level of the second hole.

[0008] In another preferred embodiment, the stator body includes: at least one first silicon steel sheet, at least one second silicon steel sheet and several third silicon steel sheets, the several third silicon steel sheets are connected and arranged in sequence along the horizontal direction, the oil storage space is arranged in sequence through the several third silicon steel sheets, the first silicon steel sheet is arranged at one end of the several third silicon steel sheets along the horizontal direction, the second silicon steel sheet is arranged at the other end of the several third silicon steel sheets along the horizontal direction, and the first hole is formed on the first silicon steel sheet, and the second hole is formed on the second silicon steel sheet.

[0009] An object of the present invention is to provide a stator comprising any one of the above-mentioned buffer oil storage structures.

[0010] An object of the present invention is to provide a motor comprising the stator described above.

[0011] The object of the present invention is to provide a compressor comprising the motor described above.

[0012] In another preferred embodiment, the present invention further comprises: a movable and static disc assembly and a shell, wherein the movable and static disc assembly is arranged in one end of the shell, the motor is arranged in the other end of the shell, the motor is connected to the movable and static disc assembly, the second hole is arranged in a direction close to the movable and static disc assembly, and the first hole is arranged in a direction away from the movable and static disc assembly.

[0013] Due to the adoption of the above-mentioned technical solution, the present invention has the following positive effects compared with the prior art: through the application of the present invention, a buffer oil storage structure with a certain damping storage of refrigeration oil is provided, which is particularly suitable for the stator of the compressor motor, and can effectively buffer the large amount of oil loss caused by high-speed startup or rapid speed increase of the compressor, thereby avoiding the subsequent oil-deficient operation of the compressor in a short period of time and reducing the occurrence of poor lubrication. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the oil storage state of a buffer oil storage structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the oil supply state of a buffer oil storage structure of the present invention;

[0016] Figure 3 This is a schematic diagram of a first type of cross-sectional structure of a buffer oil storage structure of the present invention;

[0017] Figure 4 This is a schematic diagram of the second type of cross-sectional structure of a buffer oil storage structure of the present invention;

[0018] Figure 5 This is a schematic diagram of the overall unobstructed portion of a buffer oil storage structure of the present invention;

[0019] Figure 6 This is a first partial schematic diagram of a buffer oil storage structure of the present invention;

[0020] Figure 7 This is a second partial schematic diagram of a buffer oil storage structure of the present invention.

[0021] In the attached figure:

[0022] 1. Stator body; 11. Blocking part; 12. Oil storage space; 13. First hole; 14. Second hole; 15. Oil hole; 16. First silicon steel sheet; 17. Second silicon steel sheet; 18. Third silicon steel sheet; 2. Oil level; 3. Refrigerant airflow. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0024] like Figures 1 to 7 As shown, a buffer oil storage structure of a preferred embodiment is shown, comprising: a stator body 1, a blocking portion 11 is provided on the outer edge of the stator body 1, a hollow oil storage space 12 is formed in the blocking portion 11, the oil storage space 12 is used to store refrigeration oil, and the blocking portion 11 is provided with a first hole 13 and a second hole 14 on both sides along the horizontal direction, the first hole 13 is provided to connect the oil storage space 12 with one side of the blocking portion 11, and the second hole 14 is provided to connect the oil storage space 12 with the other side of the blocking portion 11, and the horizontal height of the first hole 13 is greater than that of the second hole 14. Furthermore, by utilizing the stator structure of the motor part of the compressor, a corresponding blocking portion 11 is provided, and the blocking portion 11 forms a certain barrier to the refrigeration oil in the motor cavity of the compressor in the horizontal direction, as shown specifically. Figure 1 As shown, at this time, the compressor is in a shutdown or low-speed operation state, and the refrigeration oil in the motor cavity is relatively large. At this time, the oil level 2 is at a relatively stable and high level, and the refrigeration oil enters the oil storage space 12 from the second hole 14 and fills the oil storage space 12 to form an oil storage state, and the gaseous refrigerant originally in the oil storage space 12 is discharged from the first hole 13. Figure 2 As shown, at this time, the compressor is in a high-speed start-up or high-speed acceleration operation state. At this time, the oil level 2 will drop rapidly to a lower level, and when the oil level 2 reaches the first hole 13 or the second hole 14, under the action of the pressure difference of the gaseous refrigerant on both sides of the buffer oil storage structure and gravity, the refrigeration oil in the oil storage space 12 will be stably supplied to the outside from the second hole 14 for a period of time, thereby discharging the refrigeration oil in the oil storage space 12 to realize the oil supply state of the buffer oil storage structure, thereby improving the lubrication condition in the compressor.

[0025] Furthermore, as a preferred embodiment, the above-mentioned pressure difference is that the pressure of the gaseous refrigerant near the first hole 13 is greater than the pressure of the gaseous refrigerant near the second hole 14. This pressure difference is used to make the refrigeration oil in the oil storage space 12 flow out from the second hole 14 and flow toward the dynamic and static disk assembly of the compressor.

[0026] Furthermore, as a preferred embodiment, the upper end of the inner edge of the first hole 13 is flush with the top surface of the oil storage space 12 .

[0027] Furthermore, as a preferred embodiment, the lower end of the inner edge of the second hole 14 is flush with the bottom surface of the oil storage space 12 .

[0028] Furthermore, as a preferred embodiment, the second hole 14 is a damping hole. Furthermore, the provision of the damping hole ensures that the refrigeration oil can fill the entire oil storage space 12 during the oil storage stage and is not likely to flow out of the second hole 14.

[0029] Furthermore, as a preferred embodiment, the first hole 13 is a damping hole.

[0030] Furthermore, as a preferred embodiment, at least one oil hole 15 is horizontally formed through the stator body 1. Furthermore, the oil hole 15 ensures that the refrigeration oil flows on both sides of the buffer oil storage structure when the machine is shut down or in a low-speed operation state.

[0031] Furthermore, as a preferred embodiment, the level of the oil hole 15 is smaller than the level of the second hole 14 .

[0032] Further, as a preferred embodiment, the stator body 1 includes: at least one first silicon steel sheet 16, at least one second silicon steel sheet 17 and a plurality of third silicon steel sheets 18, the plurality of third silicon steel sheets 18 are sequentially connected and arranged in the horizontal direction, the oil storage space 12 is sequentially arranged through the plurality of third silicon steel sheets 18, the first silicon steel sheet 16 is arranged at one end of the plurality of third silicon steel sheets 18 in the horizontal direction, the second silicon steel sheet 17 is arranged at the other end of the plurality of third silicon steel sheets 18 in the horizontal direction, and the first hole 13 is formed on the first silicon steel sheet 16, and the second hole 14 is formed on the second silicon steel sheet 17. Further, the above-mentioned oil storage space 12 is formed by interconnecting a plurality of sequentially connected through holes on the third silicon steel sheet 18, and the first hole 13 and the second hole 14 are formed by the restriction of the first silicon steel sheet 16 and the second silicon steel sheet 17. Specifically, as Figure 3 As shown, it includes a plurality of stacked first silicon steel sheets 16 and a plurality of stacked second silicon steel sheets 17, and a plurality of first silicon steel sheets 16 pass through the openings to form the above-mentioned first holes 13, and a plurality of second silicon steel sheets 17 pass through the openings to form the second holes 14; Figure 4As shown, another embodiment of the formation of the first hole 13 and the second hole 14 is shown, that is, a single-piece first silicon steel sheet 16 and a second silicon steel sheet 17 are set, and the upper edge of the first silicon steel sheet 16 and the lower edge of the third silicon steel sheet 18 at one end, that is, the top edge of the oil storage space 12, are close to each other to form the above-mentioned first hole 13, and the lower edge of the second silicon steel sheet 17 and the lower edge of the third silicon steel sheet 18 at the other end, that is, the bottom edge of the oil storage space 12, are close to each other to form the above-mentioned second hole 14.

[0033] Further, as a preferred embodiment, Figure 5 The figure shows the overall structure of the stator body 1. The stator body 1 is arranged in an annular structure as a whole, and a circular hole and / or an arc-shaped groove is opened on its outer edge. The blocking part 11 is arranged in the corresponding circular hole or arc-shaped groove.

[0034] Furthermore, as a preferred embodiment, the radial cross-section of the oil storage space 12 is circular or arc-shaped, and the radial cross-sections of the first hole 13 and the second hole 14 are both smaller than the radial cross-section of the oil storage space 12 .

[0035] The above descriptions are merely preferred embodiments of the present invention and are not intended to limit the implementation and protection scope of the present invention.

[0036] The present invention also has the following implementation modes based on the above:

[0037] A stator comprising any of the above-mentioned buffer oil storage structures. Furthermore, the stator body 1 is equivalent to the stator skeleton of the motor, and a winding post for winding is formed on the inner side of the stator body 1. The stator actually includes the buffer oil storage structure and the winding arranged on the buffer oil storage structure.

[0038] A motor includes the above-mentioned stator. Furthermore, the motor actually includes the above-mentioned stator and a rotor matching the stator.

[0039] A compressor comprises the above-mentioned motor.

[0040] In a further embodiment of the present invention, it also includes: a dynamic and static disc assembly and a housing, the dynamic and static disc assembly is arranged in one end of the housing, the motor is arranged in the other end of the housing, the motor is connected to the dynamic and static disc assembly, the second hole 14 is arranged in a direction close to the dynamic and static disc assembly, and the first hole 13 is arranged in a direction away from the dynamic and static disc assembly. Furthermore, the above-mentioned motor cavity is formed in the housing of the compressor, the above-mentioned motor is accommodated in the motor cavity, and the outer edge of the stator body 1 is tightly matched with the inner edge of the housing, and at the same time, the motor cavity is separated by the stator body 1 to form a first cavity and a second cavity, the first cavity and the second cavity are connected and arranged to allow the gaseous refrigerant to flow, and the first cavity is arranged close to the first hole 13, and the second cavity is arranged close to the second hole 14. During the operation of the compressor, the overall flow direction of the gaseous refrigerant is from the first cavity to the second cavity, that is, Figure 1 and Figure 2 Indicated by the dashed line with an arrow.

[0041] In a further embodiment of the present invention, the present invention further includes: a controller installed at the other end of the housing.

[0042] The above description is only a preferred embodiment of the present invention and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A buffer oil storage structure, characterized in that: include: A stator body, wherein a blocking portion is provided on the outer edge of the stator body, and the blocking portion is provided at a position of the stator body radially away from the center of the stator body. A hollow oil storage space is formed in the blocking portion, and the oil storage space is used to store refrigeration oil. The blocking portion is respectively provided with a first hole and a second hole on both sides along the horizontal direction. The first hole is provided to connect the oil storage space with one side of the blocking portion, and the second hole is provided to connect the oil storage space with the other side of the blocking portion, and the horizontal height of the first hole is greater than the horizontal height of the second hole.

2. The buffer oil storage structure according to claim 1, characterized in that: The second hole is a damping hole.

3. The buffer oil storage structure according to claim 2, characterized in that: The first hole is a damping hole.

4. The buffer oil storage structure according to claim 1, characterized in that: At least one oil hole is also provided on the stator body in a horizontal direction.

5. The buffer oil storage structure according to claim 4, characterized in that: The level of the oil hole is smaller than the level of the second hole.

6. The buffer oil storage structure according to claim 1, characterized in that: The stator body includes: at least one first silicon steel sheet, at least one second silicon steel sheet and several third silicon steel sheets, the several third silicon steel sheets are connected and arranged in sequence in the horizontal direction, the oil storage space is arranged through the several third silicon steel sheets in sequence, the first silicon steel sheet is arranged at one end of the several third silicon steel sheets in the horizontal direction, the second silicon steel sheet is arranged at the other end of the several third silicon steel sheets in the horizontal direction, and the first hole is formed on the first silicon steel sheet, and the second hole is formed on the second silicon steel sheet.

7. A stator, characterized in that: The buffer oil storage structure comprises the buffer oil storage structure according to any one of claims 1 to 6.

8. A motor, characterized in that: The stator comprises the stator as claimed in claim 7 above.

9. A compressor, characterized in that: The motor comprises the motor described in claim 8 above.

10. The compressor according to claim 9, characterized in that Also includes: A movable and static disc assembly and a shell, wherein the movable and static disc assembly is arranged in one end of the shell, the motor is arranged in the other end of the shell, the motor is connected to the movable and static disc assembly, the second hole is arranged in a direction close to the movable and static disc assembly, and the first hole is arranged in a direction away from the movable and static disc assembly.

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