Brushless motor stator

Abstract

The utility model discloses a brushless motor stator which comprises a stator core, a plurality of arc-shaped plates are installed on the stator core, the arc-shaped plates are annularly distributed on the stator core, rectangular blocks are installed on the outer surfaces of the arc-shaped plates, clamping blocks are installed on the rectangular blocks, inserting grooves are formed in the bottoms of the clamping blocks, and the clamping blocks are inserted into the inserting grooves. And clamping grooves are formed in the sides, away from the clamping blocks, of the arc-shaped plates. When a single coil needs to be disassembled, the arc-shaped plate is pulled towards the top to release the limiting of the clamping block, the single arc-shaped plate can be taken down from the stator iron core, at the moment, the corresponding coil can be disassembled, the whole fixing block does not need to be disassembled, the replacement process of the winding coil is simplified, the winding coil is disassembled and assembled more directly and quickly, and the assembly and disassembly efficiency of the winding coil is improved. And the complexity of maintenance work is reduced, the problem of damage caused by dismounting the whole fixing block is avoided, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of brushless motors, in particular to a stator of a brushless motor. Background Art

[0002] In the technical field of brushless motors, as one of the core components of the motor, the design and manufacture of the stator are directly related to the overall performance and reliability of the motor. Especially during the motor maintenance process, the disassembly and replacement of the winding coil are common maintenance requirements. The Chinese authorized utility model patent (Publication No.: CN219659487U) discloses a brushless motor stator assembly. By removing the second fixing bolt and separating the fixing plate from the stator core, the plug can be taken out and the coil can be disassembled. However, there are still certain defects to be improved in the stator of this device during use;

[0003] When it is necessary to replace a single winding coil, since the entire fixing block is designed as a whole component, the entire fixing ring must be completely disassembled. Even if only one or a few winding coils need to be replaced, this way of overall disassembly is not only time-consuming and laborious, but also increases the complexity and workload of the maintenance, resulting in an increase in the maintenance cost due to the damage of the fixing block itself caused by repeated disassembly and assembly during frequent maintenance, and the overall disassembly may also cause unnecessary damage to the stator core and other components. Therefore, a brushless motor stator is proposed to overcome the above defects. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a stator of a brushless motor, which divides the fixing block into multiple parts through an arc-shaped plate and a clamping block, realizing the function of removing a single winding coil without disassembling the entire fixing block.

[0005] The utility model is realized through the following technical solutions:

[0006] The utility model is a stator of a brushless motor, including a stator core, on which a plurality of arc-shaped plates are installed. The plurality of arc-shaped plates are annularly distributed on the stator core. A rectangular block is installed on the outer surface of the arc-shaped plate, and a clamping block is installed on the rectangular block. A slot is opened at the bottom of the clamping block. A clamping groove is opened on one side of each of the plurality of arc-shaped plates away from the clamping block. The clamping block is fitted in the adjacent clamping groove, and a pin is installed in the clamping groove and fitted in the slot.

[0007] Preferably, a threaded hole and a positioning hole are opened at the top of the stator core, and the positioning hole is located on one side of the threaded hole.

[0008] Preferably, a positioning rod is installed at the bottom of the arc-shaped plate, and the positioning rod is fitted in the positioning hole. A light hole is opened on the arc-shaped plate, and a bolt rotates in the light hole. The bottom of the bolt is threadedly fitted in the threaded hole.

[0009] Preferably, a relief groove is formed in the arc-shaped plate, and a pull rod is installed in the relief groove.

[0010] Preferably, a plurality of installation grooves are annularly formed in the stator core, and a winding part is slidably fitted in each of the plurality of installation grooves, and the winding part corresponds to the position of the arc-shaped plate.

[0011] Preferably, the winding part has an arc-shaped block, a support column is installed on the outer surface of the arc-shaped block, and an inner arc plate is installed on the outer surface of the support column.

[0012] The utility model has the following beneficial effects:

[0013] 1. Under the combined action of the arc-shaped plate and the clamping block, when it is necessary to disassemble a single coil, pull the arc-shaped plate upward to release the limit of the clamping block, and then the single arc-shaped plate can be removed from the stator core. At this time, the corresponding coil can be removed without disassembling the entire fixing block, thereby simplifying the replacement process of the winding coil, making the disassembly and installation of the winding coil more direct and fast, reducing the complexity of the maintenance work, avoiding the damage problem caused by disassembling the entire fixing block, and reducing the maintenance cost;

[0014] 2. Under the combined action of the plug pin and the slot, when installing the arc-shaped plate, the plug pin is inserted into the slot to limit and fix the movement of the clamping block, ensuring the relative position accuracy of each arc-shaped plate during the installation process, enhancing the stability of the overall structure, reducing the error caused by manual operation, ensuring that each arc-shaped plate can be accurately installed in the predetermined position, thereby increasing the stability of the stator core during use, reducing the motor failure caused by improper assembly, and improving the reliability and service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the whole stator;

[0016] Figure 2 is a schematic structural diagram of the stator core and the arc-shaped plate;

[0017] Figure 3 is a schematic top view of the arc-shaped plate;

[0018] Figure 4 is a schematic bottom view of the arc-shaped plate.

[0019] In the figure: 1. Stator core; 101. Threaded hole; 102. Positioning hole; 2. Winding part; 201. Arc-shaped block; 202. Support column; 203. Inner arc plate; 3. Arc-shaped plate; 301. Relief groove; 302. Positioning rod; 303. Bolt; 304. Card slot; 4. Pull rod; 5. Rectangular block; 6. Clamping block; 601. Slot; 7. Plug pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0021] Referring to Figures 1-4 , a brushless motor stator includes a stator core 1. Threaded holes 101 and positioning holes 102 are provided at the top of the stator core 1. The positioning hole 102 is located on one side of the threaded hole 101. The threaded hole 101 and the positioning hole 102 are respectively matched with a bolt 303 and a positioning rod 302. A plurality of installation grooves are annularly provided in the stator core 1. A winding part 2 is slidably matched in each of the plurality of installation grooves. The winding part 2 has an arc-shaped block 201. A support column 202 is installed on the outer surface of the arc-shaped block 201. A coil is wound around the support column 202. An inner arc plate 203 is installed on the outer surface of the support column 202. The position of the winding part 2 corresponds to that of the arc-shaped plate 3. When disassembling the winding part 2, only the arc-shaped plate 3 at the corresponding position needs to be removed. A plurality of arc-shaped plates 3 are installed on the stator core 1. A positioning rod 302 is installed at the bottom of the arc-shaped plate 3. The positioning rod 302 is fitted in the positioning hole 102. A light hole is provided in the arc-shaped plate 3. A bolt 303 is rotatably installed in the light hole. The bottom of the bolt 303 is threadedly matched in the threaded hole 101. By providing the positioning rod 302, the arc-shaped plate 3 can be initially positioned and moved during installation, so that the position of the arc-shaped plate 3 installed on the stator core 1 is more accurate. By providing the bolt 303, the arc-shaped plate 3 can be stably fixed on the stator core 1. A relief groove 301 is provided in the arc-shaped plate 3. A pull rod 4 is installed in the relief groove 301. By providing the relief groove 301, it is convenient to pull the pull rod 4 to remove the arc-shaped plate 3 from the stator core 1. The plurality of arc-shaped plates 3 are annularly distributed on the stator core 1. A rectangular block 5 is installed on the outer surface of the arc-shaped plate 3. A clamping block 6 is installed on the rectangular block 5. When it is necessary to disassemble a single coil wound around the support column 202, at this time, after rotating and removing the bolt 303 to release the limit on the arc-shaped plate 3, pulling the pull rod 4 upward makes the clamping block 6 move out of the clamping groove 304 to release the limit between adjacent two arc-shaped plates 3, and then a single arc-shaped plate 3 can be removed from the stator core 1. At this time, the corresponding coil can be removed. After replacing the coil, the winding part 2 is installed in the installation groove of the stator core 1. At this time, the arc-shaped plate 3 is installed on the stator core 1 from top to bottom. After the arc-shaped plate 3 is initially positioned by the positioning rod 302, the clamping block 6 is inserted into the corresponding clamping groove 304 to make the installation between adjacent arc-shaped plates 3 stable, and then the bolt 303 is screwed to fix a single arc-shaped plate 3.

[0022] A slot 601 is formed at the bottom of the clamping block 6, and clamping grooves 304 are formed on one side of each of the plurality of arc-shaped plates 3 away from the clamping block 6. The clamping block 6 is fitted into the adjacent clamping grooves 304, and a pin 7 is installed in the clamping groove 304. The pin 7 is fitted into the slot 601. When installing the arc-shaped plate 3, the clamping block 6 is first inserted into the clamping groove 304, and at this time, the pin 7 inside the clamping groove 304 is inserted into the slot 601 to limit and fix the movement of the clamping block 6, ensuring the relative position accuracy of each arc-shaped plate 3 during the installation process.

[0023] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A brushless motor stator, characterized in that: include: A stator core (1), wherein a plurality of arc plates (3) are mounted on the stator core (1), the plurality of arc plates (3) being distributed in an annular shape on the stator core (1), a rectangular block (5) being mounted on the outer surface of the arc plate (3), a clamping block (6) being mounted on the rectangular block (5), a slot (601) being provided at the bottom of the clamping block (6), a clamping slot (304) being provided on a side of the plurality of arc plates (3) away from the clamping block (6), the clamping block (6) being fitted in an adjacent clamping slot (304), a latch (7) being mounted in the clamping slot (304), the latching pin (7) being fitted in the slot (601).

2. A brushless motor stator according to claim 1, characterized in that: A threaded hole (101) and a positioning hole (102) are provided on the top of the stator core (1), and the positioning hole (102) is located on one side of the threaded hole (101).

3. A brushless motor stator according to claim 2, characterized in that: A positioning rod (302) is installed at the bottom of the arc plate (3), and the positioning rod (302) is fitted in the positioning hole (102). A light hole is opened on the arc plate (3), and a bolt (303) is rotated in the light hole. The bottom thread of the bolt (303) is fitted in the threaded hole (101).

4. The brushless motor stator according to claim 1, characterized in that: The arc-shaped plate (3) is provided with a clearance groove (301), and a pull rod (4) is installed in the clearance groove (301).

5. The brushless motor stator according to claim 1, characterized in that: The stator core (1) is provided with a plurality of mounting grooves in an annular shape, and a winding portion (2) is slidably fitted in each of the plurality of mounting grooves, and the positions of the winding portion (2) and the arc plate (3) correspond to each other.

6. A brushless motor stator according to claim 5, characterized in that: The winding part (2) has an arc-shaped block (201), a support column (202) is installed on the outer surface of the arc-shaped block (201), and an inner arc plate (203) is installed on the outer surface of the support column (202).

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