Stator skeleton structure, stator assembly, motor and compressor

Abstract

The utility model relates to a stator skeleton structure, a stator assembly, a motor and a compressor, the stator skeleton structure comprises an insulation skeleton and an insulation cover plate, the insulation skeleton is a cylindrical structure with two open ends, the inner side wall of the insulation skeleton is radially connected with a plurality of inner tooth sleeves with the same height, and the inner side surfaces of the plurality of inner tooth sleeves are located on the same circumferential surface; the insulating cover plate is of a circular ring structure, and the inner edge of the insulating cover plate extends towards the axial direction to form a cylindrical inner baffle. The insulating cover plate is detachably connected with the insulating framework, the distance between the inner baffle and the end faces of the inner gear sleeves in the axial direction is H, and H is smaller than or equal to 0.5 mm. According to the utility model, the insulating framework and the insulating cover plate are structurally improved and skillfully matched, so that the deformation condition caused by insufficient strength of the baffle plate of the existing framework body can be effectively avoided, the insulating distance between the stator assembly and the rotor assembly can be ensured, and the service life of the stator assembly and the rotor assembly is prolonged. And noise optimization and electrical insulation safety of the compressor are effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a stator skeleton structure, a stator assembly, a motor and a compressor. Background Art

[0002] In the motor structure used in the compressor, the stator assembly includes components such as a stator core, an insulating frame, and copper wire windings. The stator core includes an annular stator yoke and a plurality of stator teeth extending radially inward, with stator slots formed between adjacent stator teeth. Accordingly, the insulating frame includes an annular frame body and a plurality of frame tooth sleeves extending radially inward, so that the insulating frame can be fixed to the stator core. However, the existing frame tooth sleeves are provided with baffles along the axial direction near the inner end. However, due to the thin thickness of the resin frame, the strength of the frame tooth sleeves is relatively weak, resulting in a relatively weak restraining force on the baffles. Furthermore, the baffles are arranged at intervals in the circumferential direction and are not connected to form a complete circle, resulting in poor strength. Therefore, the baffles are prone to deformation and other undesirable conditions, which can cause the compressor noise to worsen. At the same time, due to deformation, the risk of the baffles contacting the rotor is greatly increased, which can easily cause adverse phenomena such as deterioration of the motor's electrical performance. Utility Model Content

[0003] Based on this, the purpose of the present invention is to overcome the shortcomings of the existing technology and provide a stator frame structure, stator assembly, motor and compressor. According to the stator frame structure, stator assembly, motor and compressor of the embodiments of the present invention, by structurally improving the insulating frame and insulating cover plate, and cleverly coordinating the two, the deformation of the baffle of the existing frame body caused by insufficient strength can be effectively avoided, and at the same time, the insulation distance between the stator assembly and the rotor assembly can be ensured, thereby effectively ensuring the noise optimization and electrical insulation safety of the compressor.

[0004] In order to achieve the above-mentioned purpose, the first aspect of an embodiment of the present invention provides a stator frame structure, including an insulating frame and an insulating cover plate, wherein the insulating frame is a cylindrical structure with openings at both ends, and a plurality of inner tooth sleeves of equal height are radially connected to the inner side wall of the insulating frame, and the inner side surfaces of the plurality of inner tooth sleeves are located on the same circumferential surface; the insulating cover plate is a circular ring structure, and a cylindrical inner baffle extends axially from the inner edge of the insulating cover plate; the insulating cover plate is detachably connected to the insulating frame, and the distance between the inner baffle and the end faces of the plurality of inner tooth sleeves in the axial direction is H, H≤0.5mm.

[0005] Therefore, according to the stator skeleton structure of the embodiment of the present invention, by improving the inner gear sleeve of the insulating skeleton, a baffle is no longer set at the inner end of the inner gear sleeve, but an inner baffle is axially opened at the inner edge of the insulating cover plate, and the axial distance between the inner baffle and the inner gear sleeve is limited to less than or equal to 0.5 mm. In this way, the inner baffle on the insulating cover plate can be used to restrict and fix the copper wire wound on the inner gear sleeve, and the inner baffle forms a shielding structure, thereby ensuring the insulation distance between the copper wire and the rotor, thereby effectively ensuring the noise optimization and electrical insulation safety of the compressor.

[0006] As an embodiment, the insulating cover plate is detachably connected to the insulating frame, and the diameter of the circumferential surface where the inner side surfaces of the plurality of inner gear sleeves are located is greater than or equal to the inner diameter of the inner baffle.

[0007] As an embodiment, an elastic clip is axially provided on the outer wall of the insulating frame away from the end of the inner gear sleeve, and a clamping member is provided on the outer edge of the insulating cover plate in the axial direction. The direction of the clamping member is the same as the extension direction of the inner baffle, and a bayonet is provided on the clamping member, which is clamped with the elastic clip.

[0008] As an embodiment, a plurality of the elastic clips are distributed on the outer side wall of the insulating frame, a plurality of the clamping parts are distributed on the outer edge of the insulating cover plate, and the plurality of the clamping parts are respectively engaged with the plurality of the elastic clips one by one.

[0009] As an embodiment, the diameter of the circumferential surface where the inner side surfaces of the multiple internal gear sleeves are located is equal to the inner diameter of the inner baffle, and the distance H between the inner baffle and the end faces of the multiple internal gear sleeves in the axial direction is 0.4 mm.

[0010] As an embodiment, a stator pin is axially provided on one end of the outer wall of the insulating frame close to the inner gear sleeve.

[0011] As an embodiment, a wire hole is formed through the insulating cover.

[0012] A second aspect of the present invention provides a stator assembly comprising the stator insulation structure described in any of the above embodiments. The stator assembly of the present invention, through structural improvements to the insulation frame and insulation cover, and the clever coordination between the two, effectively avoids deformation of the existing frame baffles due to insufficient strength, while also ensuring the insulation distance between the stator assembly and the rotor assembly, thereby effectively ensuring noise optimization and electrical insulation safety for the compressor.

[0013] A third aspect of the present invention provides a motor comprising the stator assembly described in any of the above embodiments. The motor according to the present invention effectively avoids deformation of the existing baffles of the frame body due to insufficient strength through structural improvements to the insulation frame and insulation cover, and their clever coordination. The motor also ensures the insulation distance between the stator assembly and the rotor assembly, thereby effectively ensuring noise reduction and electrical insulation safety for the compressor.

[0014] A fourth aspect of the present invention provides a compressor comprising the motor described in any of the above embodiments. The compressor according to the present invention effectively avoids deformation of the baffle of the existing frame body due to insufficient strength through structural improvements to the insulation frame and insulation cover, and their clever coordination. The compressor also ensures the insulation distance between the stator assembly and the rotor assembly, thereby effectively ensuring noise optimization and electrical insulation safety of the compressor.

[0015] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an exploded schematic diagram of the stator skeleton structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic structural diagram of an insulating frame of a stator frame structure according to an embodiment of the present utility model;

[0018] Figure 3 This is one of the structural schematic diagrams of the insulating cover plate of the stator skeleton structure according to an embodiment of the present utility model;

[0019] Figure 4 This is a second structural diagram of the insulating cover plate of the stator skeleton structure according to an embodiment of the present invention;

[0020] Figure 5 for Figure 4 A schematic cross-sectional view of the insulating cover taken along the AA direction is shown;

[0021] Figure 6 This is a schematic structural diagram of a stator assembly according to an embodiment of the present utility model;

[0022] Figure 7 This is a schematic diagram of the connection between the stator core and the insulating frame according to an embodiment of the present utility model.

[0023] Description of reference numerals:

[0024] 10. Insulation frame; 11. Internal gear sleeve; 12. Elastic buckle; 13. Stator pin; 20. Insulation cover; 21. Inner baffle; 22. Connector; 23. Bayonet; 24. Wire hole; 30. Stator core; 31. Stator yoke; 32. Stator teeth; 33. Stator slots. DETAILED DESCRIPTION

[0025] To further illustrate various embodiments, this utility model is provided with accompanying drawings. These drawings form part of the disclosure of this utility model and are primarily used to illustrate the embodiments and, in conjunction with the relevant description in the specification, to explain the operating principles of the embodiments. By referring to these drawings, those skilled in the art will be able to understand other possible implementations and the advantages of this utility model.

[0026] In the related art, in the motor structure used in the compressor, the stator assembly includes components such as a stator core, an insulating frame, and a copper wire winding. The stator core includes an annular stator yoke and a plurality of stator teeth extending radially inward, with stator slots formed between adjacent stator teeth. Accordingly, the insulating frame includes an annular frame body and a plurality of frame tooth sleeves extending radially inward, so that the insulating frame can be fixed to the stator core. However, the existing frame tooth sleeves are provided with a baffle in the axial direction near the inner end. However, due to the thin thickness of the resin frame, the strength of the frame tooth sleeve is relatively weak. As a result, the restraining force on the baffle is also relatively weak. The baffles are arranged at intervals in the circumferential direction and are not connected to form a complete circle, resulting in poor strength. Therefore, it is easy to cause the baffle to deform and other undesirable conditions, thereby causing the compressor noise to worsen. At the same time, due to its deformation, the risk of the baffle contacting the rotor is greatly increased, which can easily cause undesirable phenomena such as deterioration of the motor's electrical performance.

[0027] In view of this, the embodiments of the present invention provide a stator frame structure, a stator assembly, a motor and a compressor. According to the stator frame structure, the stator assembly, the motor and the compressor of the embodiments of the present invention, by making structural improvements to the insulating frame 10 and the insulating cover plate 20, and cleverly coordinating the two, the deformation of the baffle of the existing frame body caused by insufficient strength can be effectively avoided, and at the same time, the insulation distance between the stator assembly and the rotor assembly can be ensured, thereby effectively ensuring the noise optimization and electrical insulation safety of the compressor.

[0028] See also Figures 1 to 7; The first aspect of an embodiment of the present invention provides a stator skeleton structure, including an insulating skeleton 10 and an insulating cover plate 20. The insulating skeleton 10 is a cylindrical structure with openings at both ends. A plurality of inner gear sleeves 11 of equal height are radially connected to the inner side wall of the insulating skeleton 10, and the inner side surfaces of the plurality of inner gear sleeves 11 are located on the same circumferential surface; the insulating cover plate 20 is a circular ring structure, and a cylindrical inner baffle 21 extends axially from the inner edge of the insulating cover plate 20; the insulating cover plate 20 and the insulating skeleton 10 are detachably connected, and the distance in the axial direction between the inner baffle plate 21 and the end faces of the plurality of inner gear sleeves 11 is H, and H≤0.5mm.

[0029] Therefore, according to the stator skeleton structure of the embodiment of the present invention, by improving the inner gear sleeve 11 of the insulating skeleton 10, a baffle is no longer provided at the inner end of the inner gear sleeve 11, but an inner baffle 21 is axially opened at the inner edge of the insulating cover plate 20, and the axial distance between the inner baffle 21 and the inner gear sleeve 11 is limited to less than or equal to 0.5 mm. In this way, the inner baffle 21 on the insulating cover plate 20 can be used to restrict and fix the copper wire wound on the inner gear sleeve 11, and the inner baffle 21 forms a shielding structure, thereby ensuring the insulation distance between the copper wire and the rotor, thereby effectively ensuring the noise optimization and electrical insulation safety of the compressor.

[0030] In some embodiments of the present invention, the insulating cover 20 is detachably connected to the insulating frame 10 , and the diameter of the circumferential surface where the inner side surfaces of the plurality of inner gear sleeves 11 are located is greater than or equal to the inner diameter of the inner baffle 21 .

[0031] In these embodiments, an elastic snap 12 is further axially disposed on the end of the outer wall of the insulating frame 10 away from the inner gear sleeve 11, and a clip 22 is axially disposed on the outer edge of the insulating cover plate 20. The clip 22 is oriented in the same direction as the extension of the inner baffle 21, and a snap 23 is provided on the clip 22, which snaps into engagement with the elastic snap 12. To better achieve a detachable connection between the insulating frame 10 and the insulating cover plate 20, multiple elastic snaps 12 are distributed on the outer wall of the insulating frame 10, and multiple clips 22 are distributed on the outer edge of the insulating cover plate 20. The multiple clips 22 are respectively engaged with the multiple elastic snaps 12.

[0032] It can be understood that, in these embodiments, the insulating frame 10 and the insulating cover plate 20 are detachably connected by snapping together, and the snapping together can be used to quickly assemble and disassemble the two.

[0033] In some embodiments of the present invention, the diameter of the circumferential surface on which the inner side surfaces of the plurality of inner gear sleeves 11 are located is equal to the inner diameter of the inner baffle 21. It can be understood that in these embodiments, the inner baffle 21 is located on the same circumferential surface as the inner edge of the inner gear sleeve 11 in the axial direction. This structural design can maximize the distance between the inner baffle 21 and the insulating frame 10, thereby making the radial distance of the inner gear sleeve 11 relatively larger and achieving a higher copper wire winding rate.

[0034] In some embodiments of the present invention, a stator pin 13 is axially provided on one end of the outer wall of the insulating frame 10 close to the inner gear sleeve 11 .

[0035] In some embodiments of the present invention, a wire hole 24 is formed through the insulating cover 20 .

[0036] Reference below Figures 1 to 7 The stator skeleton structure according to an optional embodiment of the present invention is described in detail. It is worth noting that the following description is merely an illustrative illustration and is not to be construed as limiting the present invention.

[0037] The stator frame structure of this embodiment includes an insulating frame 10 and an insulating cover plate 20. The insulating frame 10 has a cylindrical structure with both ends open. A plurality of inner gear sleeves 11 of equal height are radially connected to the inner side wall of the insulating frame 10, and the inner side surfaces of the plurality of inner gear sleeves 11 are located on the same circumferential surface; the insulating cover plate 20 has a circular ring structure, and a cylindrical inner baffle 21 extends axially from the inner edge of the insulating cover plate 20; the insulating cover plate 20 is detachably connected to the insulating frame 10, and the distance H between the inner baffle 21 and the end faces of the plurality of inner gear sleeves 11 in the axial direction is 0.5 mm.

[0038] In this embodiment, a stator latch 13 is axially disposed on one end of the outer wall of the insulating frame 10, near the inner gear sleeve 11, to facilitate the mating and insertion between the insulating frame 10 and the stator core 30. Furthermore, a wire hole 24 is formed through the insulating cover 20 of this embodiment to facilitate the passage of the wire assembly through the insulating cover 20. Furthermore, the diameter of the circumferential surface of the inner side surfaces of the multiple inner gear sleeves 11 of this embodiment is equal to the inner diameter of the inner baffle 21.

[0039] Furthermore, in this embodiment, an elastic snap 12 is axially provided on the end of the outer wall of the insulating frame 10 away from the inner gear sleeve 11. A clip 22 is axially provided on the outer edge of the insulating cover plate 20. The clip 22 is oriented in the same direction as the extension of the inner baffle 21. The clip 22 is provided with a snap-in 23, which snaps into engagement with the elastic snap 12. Specifically, multiple elastic snaps 12 are distributed on the outer wall of the insulating frame 10, and multiple clips 22 are distributed on the outer edge of the insulating cover plate 20. The multiple clips 22 are respectively engaged with the multiple elastic snaps 12.

[0040] Reference below Figures 1 to 7 The stator skeleton structure according to an optional embodiment of the present invention is described in detail. It is worth noting that the following description is merely an illustrative illustration and is not to be construed as limiting the present invention.

[0041] The stator frame structure of this embodiment includes an insulating frame 10 and an insulating cover plate 20. The insulating frame 10 has a cylindrical structure with both ends open. A plurality of inner gear sleeves 11 of equal height are radially connected to the inner side wall of the insulating frame 10, and the inner side surfaces of the plurality of inner gear sleeves 11 are located on the same circumferential surface; the insulating cover plate 20 has a circular ring structure, and a cylindrical inner baffle 21 extends axially from the inner edge of the insulating cover plate 20; the insulating cover plate 20 is detachably connected to the insulating frame 10, and the distance H between the inner baffle 21 and the end faces of the plurality of inner gear sleeves 11 in the axial direction is 0.4 mm.

[0042] In this embodiment, a stator latch 13 is axially disposed on one end of the outer wall of the insulating frame 10, near the inner gear sleeve 11, to facilitate the mating and insertion between the insulating frame 10 and the stator core 30. Furthermore, a wire hole 24 is formed through the insulating cover 20 of this embodiment to facilitate the passage of the wire assembly through the insulating cover 20. Furthermore, the diameter of the circumferential surface of the inner side surfaces of the multiple inner gear sleeves 11 of this embodiment is equal to the inner diameter of the inner baffle 21.

[0043] Furthermore, in this embodiment, an elastic snap 12 is axially provided on the end of the outer wall of the insulating frame 10 away from the inner gear sleeve 11. A clip 22 is axially provided on the outer edge of the insulating cover plate 20. The clip 22 is oriented in the same direction as the extension of the inner baffle 21. The clip 22 is provided with a snap-in 23, which snaps into engagement with the elastic snap 12. Specifically, multiple elastic snaps 12 are distributed on the outer wall of the insulating frame 10, and multiple clips 22 are distributed on the outer edge of the insulating cover plate 20. The multiple clips 22 are respectively engaged with the multiple elastic snaps 12.

[0044] Reference below Figures 1 to 7 The stator skeleton structure according to an optional embodiment of the present invention is described in detail. It is worth noting that the following description is merely an illustrative illustration and is not to be construed as limiting the present invention.

[0045] The stator frame structure of this embodiment includes an insulating frame 10 and an insulating cover plate 20. The insulating frame 10 has a cylindrical structure with both ends open. A plurality of inner gear sleeves 11 of equal height are radially connected to the inner side wall of the insulating frame 10, and the inner side surfaces of the plurality of inner gear sleeves 11 are located on the same circumferential surface; the insulating cover plate 20 has a circular ring structure, and a cylindrical inner baffle 21 extends axially from the inner edge of the insulating cover plate 20; the insulating cover plate 20 is detachably connected to the insulating frame 10, and the distance H between the inner baffle 21 and the end faces of the plurality of inner gear sleeves 11 in the axial direction is 0.1 mm.

[0046] In this embodiment, a stator latch 13 is axially disposed on one end of the outer wall of the insulating frame 10, near the inner gear sleeve 11, to facilitate the mating and insertion between the insulating frame 10 and the stator core 30. Furthermore, a wire hole 24 is formed through the insulating cover 20 of this embodiment to facilitate the passage of the wire assembly through the insulating cover 20. Furthermore, the diameter of the circumferential surface of the inner side surfaces of the multiple inner gear sleeves 11 of this embodiment is 1 mm larger than the inner diameter of the inner baffle 21.

[0047] Furthermore, the insulating frame 10 and the insulating cover plate 20 of this embodiment can be detachably connected by bolts.

[0048] A second aspect of the present invention provides a stator assembly comprising the stator insulation structure of any of the above embodiments. The stator assembly of the present invention effectively avoids deformation of the existing frame body baffles due to insufficient strength through structural improvements to the insulation frame 10 and insulation cover plate 20, and their clever coordination. While maintaining the insulation distance between the stator assembly and the rotor assembly, it effectively ensures noise reduction and electrical insulation safety for the compressor.

[0049] In an embodiment of the present invention, the stator assembly also includes a stator core 30, which is composed of a stator yoke 31 and a plurality of stator teeth 32. The plurality of stator teeth 32 are arranged radially inward from the inner wall of the stator yoke 31, and a stator slot 33 is formed between two adjacent stator teeth 32. In this way, the two end faces of the stator yoke 31 are respectively provided with an insulating frame 10, and the plurality of inner gear sleeves 11 on each insulating frame 10 are respectively mounted on the stator teeth 32. Therefore, after the copper wire winding is wound on each stator tooth 32 and the inner gear sleeves 11 at both ends of the stator tooth 32, the two insulating cover plates 20 are respectively covered on the two insulating frames 10, and the inner baffle plate 21 on the insulating cover plate 20 is used to restrict and fix the copper wire winding so that an insulation distance is formed between the copper wire winding and the rotor assembly.

[0050] A third aspect of the present invention provides a motor comprising a stator assembly according to any of the above embodiments. The motor according to the present invention effectively avoids deformation of the existing baffles of the frame body due to insufficient strength by structurally improving the insulating frame 10 and the insulating cover plate 20, and by cleverly coordinating the two. The motor also ensures the insulation distance between the stator assembly and the rotor assembly, thereby effectively ensuring noise reduction and electrical insulation safety of the compressor.

[0051] A fourth aspect of the present invention provides a compressor comprising a motor according to any of the above embodiments. The compressor according to the present invention effectively avoids deformation of the existing baffles of the frame body due to insufficient strength by structurally improving the insulating frame 10 and the insulating cover plate 20, and by cleverly coordinating the two. The compressor also ensures the insulation distance between the stator assembly and the rotor assembly, thereby effectively ensuring noise reduction and electrical insulation safety of the compressor.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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. Therefore, they cannot be understood as limiting the present invention.

[0053] The above embodiments represent only a few implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the stator skeleton structure, stator assembly, motor, and compressor of the present invention. It should be noted that those skilled in the art will readily be able to devise variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A stator skeleton structure, characterized in that: It includes an insulating frame and an insulating cover plate. The insulating frame has a cylindrical structure with openings at both ends. Multiple inner tooth sleeves of equal height are radially connected to the inner side wall of the insulating frame, and the inner side surfaces of the multiple inner tooth sleeves are located on the same circumferential surface. The insulating cover plate has a circular ring structure, and a cylindrical inner baffle extends axially from the inner edge of the insulating cover plate. The insulating cover plate is detachably connected to the insulating frame, and the distance between the inner baffle and the end faces of the multiple inner tooth sleeves in the axial direction is H, H≤0.5mm.

2. The stator skeleton structure according to claim 1, characterized in that: The insulating cover plate is detachably connected to the insulating frame, and the diameter of the circumferential surface where the inner side surfaces of the plurality of inner gear sleeves are located is greater than or equal to the inner diameter of the inner baffle.

3. The stator skeleton structure according to claim 2, characterized in that: An elastic clip is axially provided on one end of the outer wall of the insulating frame away from the inner gear sleeve, and a clamping piece is provided on the outer edge of the insulating cover plate in the axial direction. The direction of the clamping piece is the same as the extension direction of the inner baffle, and a bayonet is provided on the clamping piece, which is clamped with the elastic clip.

4. The stator skeleton structure according to claim 3, characterized in that: A plurality of elastic clips are distributed on the outer side wall of the insulating frame, and a plurality of clamping members are distributed on the outer edge of the insulating cover plate. The plurality of clamping members are respectively engaged with the plurality of elastic clips one by one.

5. The stator skeleton structure according to claim 2, characterized in that: The diameter of the circumferential surface where the inner side surfaces of the multiple internal gear sleeves are located is equal to the inner diameter of the inner baffle, and the distance H between the inner baffle and the end surfaces of the multiple internal gear sleeves in the axial direction is 0.4 mm.

6. The stator skeleton structure according to claim 1, characterized in that: A stator pin is axially arranged on one end of the outer wall of the insulating frame close to the inner gear sleeve.

7. The stator skeleton structure according to claim 1, characterized in that: A wire passing hole is formed through the insulating cover plate.

8. A stator assembly, characterized in that: The invention comprises the stator skeleton structure according to any one of claims 1 to 7.

9. A motor, characterized in that: Comprising the stator assembly of claim 8.

10. A compressor, characterized in that: Comprising the motor as claimed in claim 9.

Images