Brushless motor with wire arrangement-free function

Abstract

The utility model discloses a brushless motor with a wire arrangement-free function, and relates to the technical field of brushless motors, the brushless motor comprises a stator assembly, an end cover assembly, a Hall disk, a printed circuit board and a rear end cover, the stator assembly is provided with the end cover assembly, the end cover assembly is provided with the Hall disk, the end cover assembly is provided with the rear end cover, and the rear end cover is provided with the printed circuit board. The rear end cover is provided with a printed circuit board, the printed circuit board is fixedly connected with the rear end cover, the rear end cover wraps the Hall magnetic disk, the groove A of the PCB is matched with the boss of the upper framework, after the PCB is placed, the notches in the PCB are in one-to-one correspondence with the bosses on the framework, and then a spot welding device is used for welding enameled wires, so that manual wire arrangement can be avoided, the production efficiency is improved, and the production cost is reduced. And the working efficiency is greatly improved, and the productivity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brushless motors, in particular to a brushless motor with a wire-management-free function. Background Art

[0002] Brushless motors convert electrical energy into rotational mechanical energy through the combined action of permanent magnets and wire windings. When winding the stator, a single wire is generally used to continuously wrap around all the stator slots, and then the wires are broken and connected in each slot to adjust to star and triangle connections.

[0003] The traditional method is to wind the stator halves together, then manually organize the wires to lead out the leads. This method is inefficient and requires a lot of manpower. In addition, the traditional motor assembly process uses screws to fix them, which takes up a large area and requires a long installation time. Utility Model Content

[0004] The purpose of the utility model is to provide a brushless motor with a wire-management-free function, so as to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A brushless motor with a wire-management-free function includes a stator assembly, an end cover assembly, a Hall disk, a printed circuit board, and a rear end cover. The stator assembly is provided with an end cover assembly, the end cover assembly is provided with a Hall disk, the end cover assembly is provided with a rear end cover, the rear end cover is provided with a printed circuit board, the printed circuit board is fixedly connected to the rear end cover, and the rear end cover wraps the Hall disk.

[0007] First assemble the stator assembly, then press in the Hall disk, then place the printed circuit board on the rear end cover and perform spot welding. Then, hot-melt the positioning columns on the end cover to fix the PCB board. Finally, place the rear end cover into the groove of the end cover. The rear end cover and the end cover assembly are connected through the anti-claw, groove B and groove D, and then ultrasonically welded to complete the overall brushless motor assembly installation.

[0008] Furthermore, the stator assembly includes a rotor, a stator core, a PCB board, an upper frame and a lower frame. The lower frame is located at the bottom end of the stator core, and the upper frame is located at the top end of the stator core. The upper frame is provided with a plurality of bosses, which are fixedly connected to the upper frame. A plurality of enameled wires are provided on the upper surface of the upper frame. A PCB board is provided on the top of the upper frame. A groove A is provided on the PCB board, which cooperates with the boss. Three soldering pins are provided on the upper surface of the PCB board, which are fixedly connected to the PCB board.

[0009] The rotor is located in the stator core, and the rotor is currently in use so it will not be described. The upper and lower frames are mounted on the upper and lower ends of the stator core. The bosses are used to position the PCB. The length of the enameled wire stripping head is 4mm. The enameled wire is used for welding and connecting with the PCB. The upper surface of the upper frame is provided with multiple starting heads. The number of starting heads is the same as the number of enameled wires. The starting heads are the ends of the enameled wires. The three solder pins on the PCB are U, V, and W pins. The pins can be designed into straight, L-shaped, and other shapes according to design requirements. The PCB is provided with Wiring, the direction and level of wiring can be adjusted according to actual needs. During installation, match the groove A of the PCB board with the boss of the upper frame. After placing the PCB board, put it in as shown in the figure. The notch on the PCB board should correspond one-to-one with the boss on the frame. At the same time, align the mark "A" with the starting No. 1 enameled wire end. The mark "A" can be different letters or arrows in different designs. Then use spot welding equipment to weld the enameled wire. This can avoid manual wire management, greatly improve work efficiency and increase production capacity.

[0010] Furthermore, a shell is provided outside the stator core, and the shell wraps the stator core, the upper frame and the lower frame.

[0011] The shell effectively protects the stator core, as well as the upper frame and the lower frame.

[0012] Furthermore, a reverse claw is provided on the shell, and the reverse claw is fixedly connected to the shell.

[0013] The counter claws in the housing are used to install the end cap assembly.

[0014] Furthermore, the end cover assembly includes a connecting piece and an end cover body. The connecting piece is fixedly connected to the end cover body. A groove B is provided on the end cover body, and the reverse claw cooperates with the groove B.

[0015] The grooves B are used to cooperate with the counter claws to enable the end cover assembly to be installed on the stator assembly, wherein the number of the grooves B is the same as the number of the counter claws.

[0016] Furthermore, a groove C is formed on the upper surface of the end cover body, and the groove C cooperates with the rear end cover.

[0017] Groove C is used to place and install the rear end cover.

[0018] Furthermore, a groove D is provided on the rear end cover, and the groove D cooperates with the counter claw.

[0019] The number of grooves D is consistent with the number of grooves B. After the rear end cover is installed on the end cover body, grooves B and grooves D are on the same central axis, so that the counter claw passes through grooves B and grooves D to achieve the installation of the end cover assembly and the rear end cover.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The utility model matches the groove A of the PCB board with the boss of the upper frame. After the PCB board is placed, the notch on the PCB board must correspond one-to-one with the boss on the frame, and then the enameled wire is welded with a spot welding device. This can avoid manual wire management, greatly improve work efficiency, increase production capacity, and also save the problem of enameled wire ends being left too long.

[0022] 2. After the rear end cover is installed on the end cover body, the groove B and the groove D are on the same central axis, so that the reverse claw passes through the groove B and the groove D to realize the installation of the stator assembly to the end cover assembly and the rear end cover, thereby saving space and screws for installing screws, simplifying the process, improving production efficiency, and changing the original two-step screw fixing process to a one-step reverse connection process, thereby simplifying the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a brushless motor with a wire-management-free function according to the present invention;

[0024] Figure 2 This is an exploded schematic diagram of the overall structure of a brushless motor with a wire-management-free function according to the present invention;

[0025] Figure 3 This is a schematic diagram of the top structure of a brushless motor with a wire-management-free function according to the present invention;

[0026] Figure 4 This is a schematic diagram of the top partial structure of a brushless motor with a wire-management-free function according to the present invention;

[0027] Figure 5 This is a schematic structural diagram of a brushless motor stator assembly with a wire-management-free function according to the present invention;

[0028] Figure 6 This is a side structural diagram of a brushless motor stator assembly with a wire-management-free function according to the present invention;

[0029] Figure 7 This is a schematic diagram of the pitch angle structure of a brushless motor stator assembly with a wire-management-free function according to the present invention;

[0030] Figure 8 This is a schematic diagram of the PCB structure of a brushless motor with a wire-management-free function in the utility model;

[0031] Figure 9 This is a side structural diagram of a brushless motor PCB board with a wire-management-free function according to the present invention;

[0032] Figure 10 This is a schematic diagram of the top surface structure of a brushless motor stator assembly with a wire-management-free function according to the present invention;

[0033] Figure 11 This is a schematic diagram of the disassembled structure of a brushless motor stator assembly with a wire-management-free function according to the present invention.

[0034] In the figure: 1. Stator assembly; 11. Stator core; 12. PCB board; 121. Groove A; 13. Upper frame; 14. Lower frame; 15. Boss; 16. Solder pin; 17. Housing; 18. Counter claw; 2. End cover assembly; 21. Connector; 22. End cover body; 221. Groove B; 222. Groove C; 3. Hall effect disk; 4. Printed circuit board; 5. Rear end cover; 51. Groove D. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0036] like Figures 1 to 11 As shown, the utility model provides a brushless motor technical solution with a wire-free function. The brushless motor includes a stator assembly 1, an end cover assembly 2, a Hall disk 3, a printed circuit board 4, and a rear end cover 5. The stator assembly 1 is provided with an end cover assembly 2, the end cover assembly 2 is provided with a Hall disk 3, the end cover assembly 2 is provided with a rear end cover 5, the rear end cover 5 is provided with a printed circuit board 4, the printed circuit board 4 is fixedly connected to the rear end cover 5, and the rear end cover 5 wraps the Hall disk 3;

[0037] Specifically, the stator assembly 1 is assembled first, and then the Hall disk 3 is pressed in. Next, the printed circuit board 4 is placed on the rear end cover 5 and spot-welded. The positioning columns on the end cover are then hot-melted to fix the PCB board 12. Finally, the rear end cover 5 is placed in the groove of the end cover. The rear end cover 5 and the end cover assembly 2 are connected by the anti-claw 18, the groove B221 and the groove D51 for ultrasonic welding to complete the overall brushless motor assembly installation.

[0038] like Figure 1 、 Figure 2 、 Figures 5 to 11As shown, the stator assembly 1 includes a rotor, a stator core 11, a PCB board 12, an upper frame 13 and a lower frame 14. The lower frame 14 is located at the bottom end of the stator core 11, and the upper frame 13 is located at the top end of the stator core 11. The upper frame 13 is provided with a plurality of bosses 15, which are fixedly connected to the upper frame 13. A plurality of enameled wires are provided on the upper surface of the upper frame 13. A PCB board 12 is provided on the top of the upper frame 13. A groove A121 is formed on the PCB board 12, which cooperates with the boss 15. Three soldering pins 16 are provided on the upper surface of the PCB board 12, which are fixedly connected to the PCB board 12.

[0039] Specifically, the rotor is located in the stator core, and the rotor is currently in use so it will not be described. The upper frame 13 and the lower frame 14 are mounted on the upper and lower ends of the stator core 11. The boss 15 is used to mount the PCB board 12 for positioning. The length of the enameled wire stripping head is 4 mm, and the enameled wire is used for welding and connecting with the PCB board 12. The upper surface of the upper frame 13 is provided with a plurality of starting heads, and the number of starting heads is consistent with the number of enameled wires. The starting heads are the ends of the enameled wires. The three solder pins 16 on the PCB board 12 are U, V, and W pins, and the pins can be designed into different shapes such as straight and L-shaped according to design requirements. The PCB board 12 There is wiring on it, and the direction and level of wiring can be adjusted according to actual needs. During installation, the groove A121 of the PCB board 12 is matched with the boss 15 of the upper frame 13. After placing the PCB board 12, the PCB board 12 is placed as shown in the figure. The notch on the PCB board 12 should correspond one-to-one with the boss 15 on the frame. At the same time, the mark "A" is aligned with the starting No. 1 enameled wire end, where the mark "A" can be different letters or arrows in different designs. Then use spot welding equipment to weld the enameled wire. This can avoid manual wire management, greatly improve work efficiency and increase production capacity.

[0040] like Figure 1 、 Figure 2 As shown, a shell 17 is provided outside the stator core 11, and the shell 17 wraps the stator core 11, the upper frame 13 and the lower frame 14;

[0041] Specifically, the housing 17 effectively protects the stator core 11 , the upper frame 13 , and the lower frame 14 .

[0042] like Figures 1 to 3 As shown, the housing 17 is provided with an anti-claw 18, and the anti-claw 18 is fixedly connected to the housing 17;

[0043] Specifically, the counter claws 18 in the housing 17 are used to install the end cover assembly 2 .

[0044] like Figures 1 to 4As shown, the end cover assembly 2 includes a connecting member 21 and an end cover body 22. The connecting member 21 is fixedly connected to the end cover body 22. A groove B221 is formed on the end cover body 22, and the reverse claw 18 cooperates with the groove B221.

[0045] Specifically, the grooves B221 are used to cooperate with the counter claws 18 to achieve the installation of the end cover assembly 2 on the stator assembly 1, wherein the number of the grooves B221 is the same as the number of the counter claws 18.

[0046] like Figure 4 As shown, a groove C222 is formed on the upper surface of the end cover body 22, and the groove C222 cooperates with the rear end cover 5;

[0047] Specifically, the groove C222 is used to place and install the rear end cover 5

[0048] like Figure 3 As shown, a groove D51 is formed on the rear end cover 5, and the groove D51 cooperates with the anti-claw 18;

[0049] Specifically, the number of grooves D51 is consistent with the number of grooves B221. After the rear end cover 5 is installed on the end cover body 22, the grooves B221 and the grooves D51 are on the same central axis, so that the counter claws 18 pass through the grooves B221 and the grooves D51 to realize the installation of the stator assembly 1 on the end cover assembly 2 and the rear end cover 5.

[0050] Working principle: match the groove A121 of the PCB board 12 with the boss 15 of the upper frame 13. After placing the PCB board 12, the notch on the PCB board 12 should correspond one-to-one with the boss 15 on the frame, and then use spot welding equipment to weld the enameled wire. This can avoid manual wire management, greatly improve work efficiency, and increase production capacity. After the stator assembly 1 is assembled, the Hall disk 3 is pressed in, and then the printed circuit board 4 is placed on the rear end cover 5 for spot welding. The positioning column on the end cover is hot-melt to fix the PCB board 12. Finally, the rear end cover 5 is placed in the groove of the end cover. The rear end cover 5 and the end cover assembly 2 are connected by the anti-claw 18, the groove B221 and the groove D51 for ultrasonic welding.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A brushless motor with a wire-free function, characterized by: The brushless motor comprises a stator assembly (1), an end cover assembly (2), a Hall disk (3), a printed circuit board (4) and a rear end cover (5); the stator assembly (1) is provided with an end cover assembly (2); the end cover assembly (2) is provided with a Hall disk (3); the end cover assembly (2) is provided with a rear end cover (5); the rear end cover (5) is provided with a printed circuit board (4); the printed circuit board (4) is fixedly connected to the rear end cover (5); and the rear end cover (5) wraps the Hall disk (3); The stator assembly (1) comprises a rotor, a stator core (11), a PCB board (12), an upper frame (13) and a lower frame (14), wherein the lower frame (14) is located at the bottom end of the stator core (11), and the upper frame (13) is located at the top end of the stator core (11). The upper frame (13) is provided with a plurality of bosses (15), and the bosses (15) are fixedly connected to the upper frame (13). A PCB board (12) is provided at the top end of the upper frame (13), and a groove A (121) is provided on the PCB board (12), and the groove A (121) is matched with the boss (15). Three soldering pins (16) are provided on the upper surface of the PCB board (12), and the three soldering pins (16) are fixedly connected to the PCB board (12).

2. The brushless motor with wire-free function according to claim 1, characterized in that: A shell (17) is provided outside the stator core (11), and the shell (17) wraps the stator core (11), the upper frame (13) and the lower frame (14).

3. The brushless motor with wire-management-free function according to claim 2, characterized in that: A counter claw (18) is provided on the housing (17), and the counter claw (18) is fixedly connected to the housing (17).

4. The brushless motor with wire-management-free function according to claim 3, characterized in that: The end cover assembly (2) comprises a connecting piece (21) and an end cover body (22); the connecting piece (21) is fixedly connected to the end cover body (22); a groove B (221) is provided on the end cover body (22); and the counter claw (18) cooperates with the groove B (221).

5. The brushless motor with wire-management-free function according to claim 4, characterized in that: A groove C (222) is provided on the upper surface of the end cover body (22), and the groove C (222) cooperates with the rear end cover (5).

6. The brushless motor with wire-management-free function according to claim 4, characterized in that: The rear end cover (5) is provided with a groove D (51), and the groove D (51) cooperates with the counter claw (18).

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