A brushless motor that is easy to assemble

By designing the housing with movable connections and setting up heat dissipation holes, the problems of long assembly time and internal heat accumulation in brushless motors are solved, enabling rapid assembly and maintenance and improving service life.

CN224305567UActive Publication Date: 2026-05-29DONGGUAN BINGLI ELECTRONIC TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN BINGLI ELECTRONIC TECH CO LTD
Filing Date
2025-04-26
Publication Date
2026-05-29

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Abstract

The utility model belongs to motor technical field especially, it is convenient to assemble brushless motor, including first casing and second casing, one side fixed mounting of first casing surface has lower locating block, one side fixed mounting of second casing surface has upper locating block, and one side of upper locating block surface is in contact with one side of lower locating block surface, the other side of lower locating block surface is provided with nut, one end of upper locating block surface is provided with internal hexagonal bolt, and the other side of internal hexagonal bolt is connected with the internal thread of nut and is penetrated lower locating block and the inside of upper locating block. The movable connection mode is used between first casing and second casing, and upper locating block and lower locating block are aligned, and it is fixed through internal hexagonal bolt and nut, and the heat dissipation hole is set up on the surface of first casing, the air flow in the inside of brushless motor is increased, the internal electronic element is avoided to be damaged by the heat accumulation in the inside of brushless motor, and the service life of brushless motor is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of motor technology, specifically relating to a brushless motor that is easy to assemble. Background Technology

[0002] Brushless motors are a typical example of modern electromechanical products. Compared to traditional brushed motors, brushless motors offer advantages such as low noise, high energy efficiency, and durability. Brushless motors generally operate in a self-controlled manner, so unlike synchronous motors that require heavy-load starting under variable frequency speed control, they typically do not need to restart the windings on the rotor. This means they are unlikely to experience oscillations or loss of synchronization during sudden load changes, which is a key advantage and a major reason for their widespread use.

[0003] Existing motors typically require welding of internal components during assembly to prevent vibration during use. This assembly process is time-consuming, and some components cannot be repaired or replaced when the motor is damaged, making them inconvenient to use. The motor housing is usually sealed, which can easily lead to heat buildup inside during prolonged operation, damaging internal electronic components and affecting the lifespan of the brushless motor. Utility Model Content

[0004] To address the problems mentioned in the background art, this utility model provides a brushless motor that is easy to assemble, solving the problems of long assembly time, inability to repair or replace some components when the motor is damaged, inconvenience in use, and the fact that the motor housing is usually sealed, which can easily cause heat buildup inside during long-term operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a brushless motor that is easy to assemble, comprising a first housing and a second housing. A lower positioning block is fixedly installed on one side of the surface of the first housing, and an upper positioning block is fixedly installed on one side of the surface of the second housing, with one side of the surface of the upper positioning block contacting one side of the surface of the lower positioning block. A nut is provided on the other side of the surface of the lower positioning block, and an internal hexagonal bolt is provided at one end of the surface of the upper positioning block, with the other side of the internal hexagonal bolt penetrating the interior of the lower and upper positioning blocks and threadedly connected to the nut. Limiting blocks are fixedly connected to both sides of the interior of the first housing, and insertion holes are provided inside the limiting blocks. Insertion blocks are fixedly connected to both sides of the interior of the second housing, with the surface of the insertion blocks movably connected to the surface of the insertion holes. A bearing mounting part is connected to the bottom of the inner surface of the first housing, and an output shaft is connected to one side of the bearing mounting part, with the other end of the output shaft penetrating the center of the interior of the second housing and the mounting plate.

[0006] Preferably, multiple sets of heat dissipation holes are formed around the surface of the first housing.

[0007] Preferably, a mounting plate is fixedly connected to one side of the top of the second housing, and mounting holes are provided at the four corners of the surface of the mounting plate.

[0008] Preferably, a connecting plate is connected to one side of the inner surface of the second housing, and a rubber-coated stator is fixedly connected to the surface of the connecting plate.

[0009] Preferably, a magnetic ring is provided on one side inside the second housing, and the inner surface of the magnetic ring is movably connected to the surface of the rubber-coated stator.

[0010] Preferably, threaded connecting blocks are fixedly connected to both sides of the outer surface of the first housing, a first bolt is provided on one side of the surface of the threaded connecting block, and a second bolt is provided on one side of the surface of the threaded connecting block on the other side of the first housing.

[0011] Preferably, one end of the first bolt passes through the interior of the threaded connecting block and the limiting block and is threadedly connected to the interior of the plug-in block, and one end of the second bolt passes through the interior of the threaded connecting block and the limiting block on the other side and is threadedly connected to the interior of the plug-in block.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The first and second housings are connected by a movable connection. The upper and lower positioning blocks are aligned and secured with hex bolts and nuts. Then, the first and second bolts are tightened to connect the first and second housings, making assembly more convenient and quick. When internal components malfunction, the first and second housings can be quickly opened for repair and replacement. By creating heat dissipation holes on the surface of the first housing, airflow inside the brushless motor is increased, preventing heat buildup inside the brushless motor from damaging internal electronic components and extending the lifespan of the brushless motor. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is an exploded view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the second housing of the present invention;

[0018] Figure 4 This is a schematic diagram of the first housing of this utility model;

[0019] Figure 5 This is a schematic diagram of the upper block of this utility model.

[0020] In the diagram: 1. First housing; 2. Second housing; 3. First bolt; 4. Mounting hole; 5. Output shaft; 6. Mounting plate; 7. Limiting block; 8. Bearing mounting part; 9. Rubber-coated stator; 10. Second bolt; 11. Magnetic ring; 12. Connecting plate; 13. Insertion block; 14. Socket head bolt; 15. Nut; 16. Threaded connection block; 17. Lower positioning block; 18. Insertion hole; 19. Upper positioning block; 20. Heat dissipation hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides the following technical solution: a brushless motor that is easy to assemble, comprising a first housing 1 and a second housing 2, characterized in that: a lower positioning block 17 is fixedly installed on one side of the surface of the first housing 1, and an upper positioning block 19 is fixedly installed on one side of the surface of the second housing 2, with one side of the surface of the upper positioning block 19 contacting one side of the surface of the lower positioning block 17; a nut 15 is provided on the other side of the surface of the lower positioning block 17; an internal hexagon bolt 14 is provided at one end of the surface of the upper positioning block 19, with the other side of the internal hexagon bolt 14 penetrating the interior of the lower positioning block 17 and the upper positioning block 19 and being threadedly connected to the interior of the nut 15; limit blocks 7 are fixedly connected to both sides of the interior of the first housing 1, with insertion holes 18 opened inside the limit blocks 7; insertion blocks 13 are fixedly connected to both sides of the interior of the second housing 2, with the surface of the insertion blocks 13 movably connected to the surface of the insertion holes 18; a bearing mounting part 8 is connected to the bottom of the inner surface of the first housing 1; an output shaft 5 is connected to one side of the bearing mounting part 8, with the other end of the output shaft 5 penetrating the center of the interior of the second housing 2 and the mounting plate 6.

[0023] In this embodiment, multiple sets of heat dissipation holes 20 can improve the airflow inside the brushless motor, prevent the heat inside the brushless motor from accumulating and not dissipating due to long-term operation, protect the components inside the brushless motor, prevent the components inside the brushless motor from burning out due to heat accumulation or shortening their service life, and improve the service life of the brushless motor.

[0024] In this embodiment, the upper positioning block 19 and the lower positioning block 17 can help the staff to quickly determine the contact position of the first housing 1 and the second housing 2. After the upper positioning block 19 and the lower positioning block 17 are aligned, the insertion block 13 can be directly inserted into the inside of the insertion hole 18 without the need for further correction, which simplifies the operation process, saves assembly time, and also makes the connection between the first housing 1 and the second housing 2 more stable after assembly.

[0025] In this embodiment: after the plug block 13 is inserted into the socket 18, the limiting block 7 restricts the position of the first housing 1 and the second housing 2, preventing them from moving left or right, thus avoiding positional deviation during assembly and saving workers' correction time. Once aligned, no correction is required, which facilitates assembly and disassembly. At the same time, it can be operated by a single person without any extra assistance.

[0026] In this embodiment, the first bolt 3 and the second bolt 10 are used to secure the positions of the first housing 1 and the second housing 2, thereby improving the stability of the assembly.

[0027] The working principle and usage process of this utility model are as follows: After the utility model is installed, the output shaft 5 is installed inside the bearing mounting part 8. Hold the first housing 1 and the second housing 2 with both hands respectively, and determine the position of the first housing 1 and the second housing 2 through the upper positioning block 19 and the lower positioning block 17. Then, align the plug block 13 with the plug hole 18 and press down on the second housing 2. After the first housing 1 and the second housing 2 are completely fitted, fit the nut 15 with the lower positioning block 17. Tighten the hexagonal bolt 14 with an Allen wrench until there is no extra space between it and the nut 15. Then, insert the first bolt 3 and the second bolt 10 into the threaded connecting blocks 16 on both sides of the surface of the first housing 1 respectively. Then, tighten the first bolt 3 and the second bolt 10 with a wrench. Then, install the brushless motor into the corresponding position through the mounting holes 4 at the four corners of the mounting plate 6. Connect the output shaft 5 to the structure that needs to rotate.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A brushless motor that is easy to assemble, comprising a first housing (1) and a second housing (2), characterized in that: A lower positioning block (17) is fixedly installed on one side of the surface of the first housing (1), and an upper positioning block (19) is fixedly installed on one side of the surface of the second housing (2). One side of the surface of the upper positioning block (19) is in contact with one side of the surface of the lower positioning block (17). A nut (15) is provided on the other side of the surface of the lower positioning block (17). An internal hex bolt (14) is provided at one end of the surface of the upper positioning block (19), and the other side of the internal hex bolt (14) penetrates the interior of the lower positioning block (17) and the upper positioning block (19) and the interior of the nut (15). The first housing (1) is threaded and has two fixedly connected limit blocks (7) inside. The limit blocks (7) have an insertion hole (18) inside. The second housing (2) has two fixedly connected plug blocks (13) inside. The surface of the plug blocks (13) is movably connected to the surface of the insertion hole (18). The bottom of the inner surface of the first housing (1) is connected to a bearing mounting part (8). One side of the bearing mounting part (8) is connected to an output shaft (5). The other end of the output shaft (5) passes through the center of the second housing (2) and the mounting plate (6).

2. The brushless motor for easy assembly according to claim 1, characterized in that: Multiple sets of heat dissipation holes (20) are formed around the surface of the first housing (1).

3. The brushless motor for easy assembly according to claim 1, characterized in that: A mounting plate (6) is fixedly connected to one side of the top of the second housing (2), and mounting holes (4) are provided at the four corners of the surface of the mounting plate (6).

4. The brushless motor for easy assembly according to claim 1, characterized in that: A connecting plate (12) is connected to one side of the inner surface of the second housing (2), and a rubber-coated stator (9) is fixedly connected to the surface of the connecting plate (12).

5. The brushless motor for easy assembly according to claim 1, characterized in that: A magnetic ring (11) is provided on one side inside the second housing (2), and the inner surface of the magnetic ring (11) is movably connected to the surface of the rubber-coated stator (9).

6. The brushless motor for easy assembly according to claim 1, characterized in that: Both sides of the outer surface of the first housing (1) are fixedly connected with threaded connecting blocks (16). A first bolt (3) is provided on one side of the surface of the threaded connecting block (16), and a second bolt (10) is provided on one side of the surface of the threaded connecting block (16) on the other side of the first housing (1).

7. A brushless motor for easy assembly according to claim 6, characterized in that: One end of the first bolt (3) passes through the interior of the threaded connecting block (16) and the limiting block (7) and is threadedly connected to the interior of the plug-in block (13). One end of the second bolt (10) passes through the interior of the threaded connecting block (16) and the limiting block (7) on the other side and is threadedly connected to the interior of the plug-in block (13).