A brushless motor stator insulation frame structure

Abstract

This utility model discloses a stator insulation frame structure for a brushless motor, comprising a frame body, which includes a positioning yoke and several sets of positioning teeth. The positioning teeth are distributed circumferentially on the inner wall of the positioning yoke, and a winding groove is formed between any two adjacent sets of positioning teeth. The positioning yoke has a first mounting platform and a second mounting platform. A common terminal is inserted and connected to the first mounting platform, and the common terminal has a first wiring groove, a second wiring groove, and a third wiring groove. A U-phase terminal, a V-phase terminal, and a W-phase terminal are inserted and connected to the second mounting platform. The U-phase terminal has a fourth wiring groove, the V-phase terminal has a fifth wiring groove, and the W-phase terminal has a sixth wiring groove. This brushless motor stator insulation frame structure has the advantages of high reliability and good safety, and can effectively improve production efficiency and product quality.

Description

Technical Field

[0001] This utility model relates to the field of brushless motor technology, specifically to a brushless motor stator insulation frame structure. Background Technology

[0002] A brushless motor consists of a stator, rotor, end covers, and housing. The stator includes a stator core, an insulating frame, and windings, typically made of enameled wire. Currently, the insulating frame on the stator core of a brushless motor fastens from both ends to insulate each tooth of the stator core. However, existing insulating frames are prone to winding unraveling, leading to frequent motor malfunctions and significant safety hazards. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a brushless motor stator insulation frame structure with high reliability, good safety, and the ability to effectively improve production efficiency and product quality.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A brushless motor stator insulation frame structure includes a frame body, the frame body including a positioning yoke and several sets of positioning teeth, the positioning teeth being distributed circumferentially on the inner sidewall of the positioning yoke, a winding groove being formed between any two adjacent sets of positioning teeth, a first mounting platform and a second mounting platform being provided radially opposite to each other on the positioning yoke, a common terminal being inserted and connected on the first mounting platform, the common terminal being provided with a first wiring groove, a second wiring groove and a third wiring groove; The second mounting platform is connected to a U-phase terminal, a V-phase terminal, and a W-phase terminal. The U-phase terminal has a fourth wiring slot, the V-phase terminal has a fifth wiring slot, and the W-phase terminal has a sixth wiring slot.

[0005] As a further improvement to the above technical solution: The outer side wall of the first mounting platform is provided with a first hook groove corresponding to the first wiring groove, a second hook groove corresponding to the second wiring groove, and a third hook groove corresponding to the third wiring groove; The outer wall of the second mounting platform is provided with a fourth hook groove corresponding to the fourth wiring groove, a fifth hook groove corresponding to the fifth wiring groove, and a sixth hook groove corresponding to the sixth wiring groove.

[0006] The positioning yoke has several sets of first positioning protrusions distributed circumferentially, and the first positioning protrusions are arranged in a one-to-one correspondence with the positioning teeth.

[0007] The positioning yoke has several sets of second positioning protrusions distributed circumferentially. The second positioning protrusions are arranged in a one-to-one correspondence with the winding groove. The outer side wall of the second positioning protrusion is provided with a stop block.

[0008] The inner end of the positioning teeth is provided with a limiting protrusion.

[0009] The lower end face of the positioning teeth is provided with a first side wall and a second side wall extending downward, and an assembly groove is formed between the first side wall and the second side wall.

[0010] The lower end face of the positioning yoke is provided with a downwardly extending arc-shaped enclosure. One end of the arc-shaped enclosure is connected to the first side enclosure of a set of positioning teeth, and the other end of the arc-shaped enclosure is connected to the second side enclosure of an adjacent set of positioning teeth.

[0011] The inner end of the first side wall of the positioning tooth is provided with a first side wing plate extending in a direction away from the assembly groove, and the inner end of the second side wall of the positioning tooth is provided with a second side wing plate extending in a direction away from the assembly groove.

[0012] The outer wall of the positioning yoke is provided with an abutting protrusion.

[0013] Compared with the prior art, the advantages of this utility model are: The stator insulation frame structure of this utility model for a brushless motor includes a positioning yoke and positioning teeth. One end of the positioning yoke is connected to a common terminal, and the other end is connected to a U-phase terminal, a V-phase terminal, and a W-phase terminal. The ends of the winding enameled wires pass through the first, second, and third slots of the common terminal, as well as the fourth slot of the U-phase terminal, the fifth slot of the V-phase terminal, and the sixth slot of the W-phase terminal. This simplifies the wiring of each phase of the stator core windings, facilitates installation, effectively improves production efficiency, and allows for tight winding of the winding enameled wires on the positioning teeth, thus improving product quality, reliability, and safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the stator insulation frame structure of a brushless motor.

[0015] Figure 2 This is a schematic diagram showing the disassembled structure of the stator insulation frame of a brushless motor.

[0016] Figure 3 This is a schematic diagram of the structure of the U-phase terminal block, V-phase terminal block, and W-phase terminal block.

[0017] Figure 4 This is a split diagram of the stator insulation frame structure of a brushless motor from another angle.

[0018] Figure 5 This is a schematic diagram of the common terminal block.

[0019] Figure 6 This is a schematic diagram of the bottom structure of the stator insulation frame of a brushless motor.

[0020] Legend: 1. Main frame; 101. Positioning yoke; 102. Positioning teeth; 2. Winding groove; 3. First mounting platform; 301. First hook groove; 302. Second hook groove; 303. Third hook groove; 4. Second mounting platform; 401. Fourth hook groove; 402. Fifth hook groove; 403. Sixth hook groove; 5. Common terminal block; 501. First wiring groove; 502. Second wiring groove; 503. Third wiring groove; 6. U Phase 1 terminal block; 601, fourth terminal block; 7, V phase terminal block; 701, fifth terminal block; 8, W phase terminal block; 801, sixth terminal block; 9, first positioning protrusion; 10, second positioning protrusion; 1001, stop block; 11, limiting protrusion; 12, first side enclosure; 1201, first side wing plate; 13, second side enclosure; 1301, second side wing plate; 14, assembly slot; 15, arc-shaped enclosure; 16, abutment protrusion. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1 to 6As shown, the brushless motor stator insulation frame structure of this embodiment includes a frame body 1. The frame body 1 includes a positioning yoke 101 and several sets of positioning teeth 102. The positioning teeth 102 are distributed circumferentially on the inner sidewall of the positioning yoke 101. A winding groove 2 is formed between any two adjacent sets of positioning teeth 102. A first mounting platform 3 and a second mounting platform 4 are provided radially opposite to each other on the positioning yoke 101. A common terminal 5 is inserted and connected to the first mounting platform 3. The common terminal 5 is provided with a first wiring groove 501, a second wiring groove 502 and a third wiring groove 503. A U-phase terminal 6, a V-phase terminal 7 and a W-phase terminal 8 are inserted and connected to the second mounting platform 4. The U-phase terminal 6 is provided with a fourth wiring groove 601, the V-phase terminal 7 is provided with a fifth wiring groove 701 and the W-phase terminal 8 is provided with a sixth wiring groove 801. The stator insulation frame structure of the brushless motor includes a positioning yoke 101 and a positioning tooth 102. One end of the positioning yoke 101 is connected to a common terminal 5, and the other end is connected to a U-phase terminal 6, a V-phase terminal 7, and a W-phase terminal 8. The ends of the winding enameled wires are inserted into the first wiring slot 501, the second wiring slot 502, and the third wiring slot 503 of the common terminal 5, as well as the fourth wiring slot 601 of the U-phase terminal 6, the fifth wiring slot 701 of the V-phase terminal 7, and the sixth wiring slot 801 of the W-phase terminal 8. This simplifies the wiring of each phase of the stator core windings, facilitates installation, effectively improves production efficiency, and allows for tight winding of the winding enameled wires on the positioning tooth 102, thus improving product quality, reliability, and safety.

[0023] Preferably, the outer wall of the first mounting platform 3 is provided with a first hook groove 301 corresponding to the first wiring groove 501, a second hook groove 302 corresponding to the second wiring groove 502, and a third hook groove 303 corresponding to the third wiring groove 503; the outer wall of the second mounting platform 4 is provided with a fourth hook groove 401 corresponding to the fourth wiring groove 601, a fifth hook groove 402 corresponding to the fifth wiring groove 701, and a sixth hook groove 403 corresponding to the sixth wiring groove 801. In this embodiment, in practical application, one end of a set of winding enameled wires passes through the first hook groove 301 and into the first terminal groove 501; one end of a set of winding enameled wires passes through the second hook groove 302 and into the second terminal groove 502; and one end of a set of winding enameled wires passes through the third hook groove 303 and into the third terminal groove 503. The enamel coating of the winding enameled wires in the first terminal groove 501, the second terminal groove 502, and the third terminal groove 503 is pierced using clamp welding or resistance welding equipment and welded to the common terminal 5. Similarly, one end of a set of winding enameled wires passes through the fourth... The wire is inserted into the fourth terminal slot 601 through the hook slot 401. One end of the winding enameled wire passes through the fifth hook slot 402 and into the fifth terminal slot 701. One end of the winding enameled wire passes through the sixth hook slot 403 and into the sixth terminal slot 801. The enamel of the winding enameled wire in the fourth terminal slot 601 is pierced and welded to the U-phase terminal 6 by means of clamp welding or resistance welding equipment. The enamel of the winding enameled wire in the fifth terminal slot 701 is pierced and welded to the V-phase terminal 7. The enamel of the winding enameled wire in the sixth terminal slot 801 is pierced and welded to the W-phase terminal 8.

[0024] Preferably, the positioning yoke 101 has several sets of first positioning protrusions 9 distributed circumferentially, and the first positioning protrusions 9 are correspondingly arranged with the positioning teeth 102. In this embodiment, the first positioning protrusions 9 are provided with insertion holes, and pins are inserted into the insertion holes during assembly. The Hall plate is welded to the pins, which facilitates the assembly between the Hall plate and the frame body 1.

[0025] Preferably, the positioning yoke 101 has a plurality of sets of second positioning protrusions 10 distributed circumferentially, and the second positioning protrusions 10 are correspondingly arranged one-to-one with the winding grooves 2. A stop block 1001 is provided on the outer wall of the second positioning protrusion 10. In this embodiment, the winding enameled wire will pass through the outer wall of the positioning yoke 101. By providing a stop block 1001 on the outer wall of the second positioning protrusion 10, the winding enameled wire is located below the stop block 1001, which can effectively prevent the winding enameled wire from coming out from above the positioning yoke 101.

[0026] Preferably, the inner end of the positioning tooth 102 is provided with a limiting protrusion 11. In this embodiment, the outer end of the positioning tooth 102 is provided with a first positioning protrusion 9, and the inner end of the positioning tooth 102 is provided with a limiting protrusion 11. The first positioning protrusion 9 and the limiting protrusion 11 limit both ends of the positioning tooth 102, which is beneficial to the tight winding of the winding enameled wire on the positioning tooth 102 and prevents the winding enameled wire from loosening and slipping out of the positioning tooth 102.

[0027] Preferably, the lower end face of the positioning tooth 102 is provided with a downwardly extending first side wall 12 and a second side wall 13, and an assembly groove 14 is formed between the first side wall 12 and the second side wall 13. In this embodiment, an assembly groove 14 is formed between the first side wall 12 and the second side wall 13 on the lower end face of the positioning tooth 102. The inner and outer ends of the assembly groove 14 are radially through-holes. When the frame body 1 is installed onto the stator core, the teeth of the stator core are embedded in the assembly groove 14, effectively improving assembly efficiency.

[0028] Preferably, the lower end face of the positioning yoke 101 is provided with a downwardly extending arc-shaped enclosure 15. One end of the arc-shaped enclosure 15 is connected to the first side enclosure 12 of a set of positioning teeth 102, and the other end of the arc-shaped enclosure 15 is connected to the second side enclosure 13 of an adjacent set of positioning teeth 102. In this embodiment, an arc-shaped enclosure 15 is provided between two adjacent sets of positioning teeth 102. One end of the arc-shaped enclosure 15 is connected to the first side enclosure 12 of a set of positioning teeth 102, and the other end is connected to the second side enclosure 13 of an adjacent set of positioning teeth 102. This effectively improves the overall structural strength of the first side enclosure 12 and the second side enclosure 13 at the lower end of each set of positioning teeth 102 and reduces the risk of deformation and failure of the first side enclosure 12 and the second side enclosure 13.

[0029] Preferably, the inner end of the first side wall 12 of the positioning tooth portion 102 is provided with a first side wing plate 1201 extending in a direction away from the assembly groove 14, and the inner end of the second side wall 13 of the positioning tooth portion 102 is provided with a second side wing plate 1301 extending in a direction away from the assembly groove 14. In this embodiment, the end of the first side wall 12 of the positioning tooth portion 102 is provided with a first side wing plate 1201 extending outward, and the end of the second side wall 13 is provided with a second side wing plate 1301 extending outward. The first side wing plate 1201, the second side wing plate 1301, and the limiting protrusion 11 together serve to limit and block the winding enameled wire, preventing the winding enameled wire from loosening and slipping out of the positioning tooth portion 102.

[0030] Preferably, the outer side wall of the positioning yoke 101 is provided with an abutting protrusion 16. When the frame body 1 is installed onto the stator core, the abutting protrusion 16 on the outer side wall of the positioning yoke 101 will abut against the upper end face of the stator core, ensuring that the assembly position of the frame body 1 is accurate.

[0031] The above description is merely a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A brushless motor stator insulation cage structure, characterized by, The system includes a main frame (1), which includes a positioning yoke (101) and several sets of positioning teeth (102). The positioning teeth (102) are distributed circumferentially on the inner sidewall of the positioning yoke (101). A winding groove (2) is formed between any two adjacent sets of positioning teeth (102). The positioning yoke (101) is provided with a first mounting platform (3) and a second mounting platform (4) in a radial direction. A common terminal block (5) is inserted and connected to the first mounting platform (3). The common terminal block (5) is provided with a first wiring groove (501), a second wiring groove (502) and a third wiring groove (503). The second mounting platform (4) is connected to a U-phase terminal (6), a V-phase terminal (7) and a W-phase terminal (8). The U-phase terminal (6) is provided with a fourth wiring slot (601), the V-phase terminal (7) is provided with a fifth wiring slot (701), and the W-phase terminal (8) is provided with a sixth wiring slot (801).

2. The brushless motor stator insulating former structure of claim 1, wherein, The outer side wall of the first mounting platform (3) is provided with a first hook groove (301) corresponding to the first wiring groove (501), a second hook groove (302) corresponding to the second wiring groove (502), and a third hook groove (303) corresponding to the third wiring groove (503). The second mounting platform (4) has a fourth hook groove (401) corresponding to the fourth wiring groove (601), a fifth hook groove (402) corresponding to the fifth wiring groove (701), and a sixth hook groove (403) corresponding to the sixth wiring groove (801) on its outer side wall.

3. The brushless motor stator insulating cage structure of claim 1, wherein, The positioning yoke (101) has several sets of first positioning protrusions (9) distributed circumferentially, and the first positioning protrusions (9) are arranged in a one-to-one correspondence with the positioning teeth (102).

4. The brushless motor stator insulating cage structure of claim 1, wherein, The positioning yoke (101) has several sets of second positioning protrusions (10) distributed circumferentially. The second positioning protrusions (10) are arranged in a one-to-one correspondence with the winding groove (2). The outer side wall of the second positioning protrusion (10) is provided with a stop block (1001).

5. The brushless motor stator insulating cage structure of claim 1, wherein, The inner end of the positioning tooth (102) is provided with a limiting protrusion (11).

6. The brushless motor stator insulating cage structure of claim 1, wherein, The lower end face of the positioning tooth (102) is provided with a first side wall (12) and a second side wall (13) extending downward, and an assembly groove (14) is formed between the first side wall (12) and the second side wall (13).

7. The brushless motor stator insulating cage structure of claim 6, wherein, The lower end face of the positioning yoke (101) is provided with a downwardly extending arc-shaped enclosure (15). One end of the arc-shaped enclosure (15) is connected to the first side enclosure (12) of a set of positioning teeth (102), and the other end of the arc-shaped enclosure (15) is connected to the second side enclosure (13) of an adjacent set of positioning teeth (102).

8. The brushless motor stator insulating cage structure of claim 7, wherein, The inner side end of the first side wall (12) of the positioning tooth part (102) is provided with a first side wing plate (1201) extending away from the assembly groove (14), and the inner side end of the second side wall (13) of the positioning tooth part (102) is provided with a second side wing plate (1301) extending away from the assembly groove (14).

9. The brushless motor stator insulating cage structure of claim 1, wherein, The outer side wall of the positioning yoke part (101) is provided with an abutting convex part (16).

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