A silent hub brushless motor on a children's toy car
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI HONGSIDA BICYCLE CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-07
Smart Images

Figure CN224473108U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hub brushless motor technology, specifically a silent hub brushless motor for children's toy cars. Background Technology
[0002] A hub brushless motor is a drive device that integrates a brushless DC motor (BLDC) directly into the wheel hub. It is widely used in electric vehicles and industrial equipment. Hub brushless motors are required in the production process of children's toy cars and are an important component of children's toy cars.
[0003] However, due to the lack of corresponding auxiliary splicing structures, the hub brushless motor cannot be quickly and easily spliced and installed during use, thus reducing the ease of use of the hub brushless motor. Utility Model Content
[0004] This utility model provides a silent hub brushless motor for children's toy cars, which can effectively solve the problem mentioned in the background art that the lack of corresponding auxiliary splicing structure makes it difficult to quickly and conveniently splice and install the hub brushless motor during use, thus reducing the ease of use of the hub brushless motor.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a silent hub brushless motor for children's toy cars, comprising a brushless motor body, wherein a quick-assembly protective mechanism is provided inside the brushless motor body;
[0006] The rapid assembly protective mechanism includes a central drive rotor, an assembly cover plate, a silicone insulating inner plate, assembly side plates, and mounting bolts;
[0007] A central drive rotor is installed in the middle of the inner side of the brushless motor body. A splicing cover plate is snapped onto one side of the brushless motor body at the position corresponding to the outer side of the central drive rotor. A silicone insulating inner plate is glued to the middle of the inner side of the splicing cover plate. Splicing side plates are evenly and equidistantly arranged in the circumferential direction on the outer side of the brushless motor body. Mounting bolts are evenly and equidistantly inserted into the edges of the brushless motor body and the splicing cover plate along the circumferential direction.
[0008] Preferably, the side of the splicing cover plate is tightly slidably fitted with the side of the brushless motor body, and mounting holes are provided at the outer positions of the mounting bolts on both the side of the brushless motor body and the side of the splicing cover plate.
[0009] Preferably, the brushless motor body is provided with a side protection heat conduction mechanism on its side;
[0010] The side protection heat conduction mechanism includes a protective arc-shaped box, a flow-guiding arc-shaped strip, a heat-conducting silicone ring, and a counterweight inner ring;
[0011] The back of the brushless motor body and the middle of the side of the splicing side plate are both bonded with protective arc-shaped boxes. The outer edge of the protective arc-shaped box is fixedly connected with flow-guiding arc-shaped strips at equal intervals along the circumferential direction. The inner edge of the protective arc-shaped box is bonded with a thermally conductive silicone ring. The inner center of the inner side of the protective arc-shaped box is snapped with a counterweight inner ring.
[0012] Preferably, the outer side of the thermally conductive silicone ring is tightly slidably fitted to the inner wall of the protective arc-shaped box, and the side of the inner ring of the counterweight is interlocked with the protective arc-shaped box through a round block and a round groove.
[0013] Preferably, an external protective isolation mechanism is provided on the outside of the brushless motor body;
[0014] The external protective isolation mechanism includes a mounting collar, a supporting corner block, a compression hole, and a supporting hard plate;
[0015] The brushless motor body is tightly covered with an installation ring on the outside. A support corner block is glued to the side of the brushless motor body corresponding to the position of the splicing side plate. The support corner block has compression round holes evenly spaced on the side. A support hard plate is inserted and installed inside the support corner block at the position corresponding to the side of the compression round hole.
[0016] Preferably, the outer side of the support corner block is tightly fitted with the inner side of the mounting ring, and the end face of the support corner block is flush with the back of the brushless motor body and the side of the splicing side plate.
[0017] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.
[0018] 1. A quick-connect protective mechanism is installed. The splicing cover plate allows for quick snap-fitting of the center drive rotor's side, ensuring smooth installation inside the brushless motor body. A silicone insulating inner plate isolates the side of the splicing cover plate to reduce heat dissipation during the center drive rotor's rotation. Installation bolts secure the brushless motor body and the splicing cover plate, improving the overall stability of the hub brushless motor installation. The splicing side plate allows for quick snap-fitting of the brushless motor body into the children's toy car, effectively enhancing the ease of use of the hub brushless motor.
[0019] 2. A side-protection heat conduction mechanism is installed. The components can be installed on the outside of the brushless motor body through the protective arc box. The heat generated inside the brushless motor body is transferred to the outside through the heat-conducting silicone ring. The inner counterweight ring provides counterweight to the side of the hub brushless motor to keep the hub brushless motor balanced during rotation. The airflow guide arc strip increases the contact area between the side of the protective arc box and the airflow, thereby effectively improving the overall heat dissipation efficiency of the hub brushless motor. This ensures that the hub brushless motor can maintain a low temperature during continuous use, effectively improving the stability and service life of the hub brushless motor.
[0020] 3. An external protective isolation mechanism is set up. The components are covered to the outside of the brushless motor body by the mounting ring, and the inside of the mounting ring is supported by the support corner blocks. The compression hole allows the outside of the brushless motor body to elastically deform under pressure. The support hard plate increases the overall structural strength of the support corner blocks. By utilizing the compressibility of the mounting ring and support corner blocks, the hub brushless motor is installed more stably, further improving the safety of the hub brushless motor. Attached Figure Description
[0021] The accompanying drawings are provided to further understand 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 and do not constitute a limitation thereof.
[0022] In the attached diagram:
[0023] Figure 1 This is a schematic diagram of the structure of this utility model;
[0024] Figure 2 This is a structural schematic diagram of the quick-assembly protective mechanism of this utility model;
[0025] Figure 3 This is a schematic diagram of the side protection heat conduction mechanism of this utility model;
[0026] Figure 4 This is a schematic diagram of the external protective isolation mechanism of this utility model;
[0027] Numbered in the diagram: 1. Main body of the brushless motor;
[0028] 2. Quick-assembly protective mechanism; 201. Center drive rotor; 202. Splicing cover plate; 203. Silicone insulating inner plate; 204. Splicing side plate; 205. Mounting bolts;
[0029] 3. Side protection heat conduction mechanism; 301. Protective arc-shaped box; 302. Guide arc-shaped strip; 304. Thermally conductive silicone ring; 305. Counterweight inner ring;
[0030] 4. External protective isolation mechanism; 401. Installation collar; 402. Support corner block; 403. Compression round hole; 404. Support hard plate. Detailed Implementation
[0031] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0032] Example: Figure 1-4 As shown, this utility model provides a technical solution: a silent hub brushless motor for children's toy cars, including a brushless motor body 1, and a quick-assembly protective mechanism 2 is provided inside the brushless motor body 1.
[0033] The quick-assembly protective mechanism 2 includes a central drive rotor 201, a splicing cover plate 202, a silicone insulating inner plate 203, a splicing side plate 204, and mounting bolts 205;
[0034] A central drive rotor 201 is installed in the middle of the inner side of the brushless motor body 1. A splicing cover plate 202 is snapped onto one side of the brushless motor body 1 at the position corresponding to the outer side of the central drive rotor 201. A silicone insulating inner plate 203 is adhered to the middle of the inner side of the splicing cover plate 202. Splicing side plates 204 are evenly spaced along the circumference of the outer side of the brushless motor body 1. Mounting bolts 205 are evenly spaced along the circumference of the edges of the brushless motor body 1 and the splicing cover plate 202. The side of the splicing cover plate 202 is tightly slidably fitted to the side of the brushless motor body 1. Mounting bolts 205 are provided at the positions corresponding to the outer side of the mounting bolts 205 on both the edge of the brushless motor body 1 and the edge of the splicing cover plate 202. The center drive rotor 201 can be quickly snapped onto the side of the splicing cover plate 202 through the round hole, ensuring that the center drive rotor 201 can be smoothly installed inside the brushless motor body 1. The side of the splicing cover plate 202 is isolated by the silicone insulating inner plate 203 to reduce the heat transmitted outward during the rotation of the center drive rotor 201. The installation bolts 205 can fix the brushless motor body 1 and the splicing cover plate 202 to improve the overall stability of the hub brushless motor installation. The splicing side plate 204 can quickly snap the brushless motor body 1 into the interior of the children's toy car, thereby effectively improving the ease of use of the hub brushless motor.
[0035] The brushless motor body 1 is provided with a side protection heat conduction mechanism 3 on its side;
[0036] The side protection heat conduction mechanism 3 includes a protective arc-shaped box 301, a flow-guiding arc-shaped strip 302, a heat-conducting silicone ring 304, and a counterweight inner ring 305;
[0037] A protective arc-shaped box 301 is glued to the back of the brushless motor body 1 and the center of the side of the splicing side plate 204. A guide arc-shaped strip 302 is fixedly connected at equal intervals along the circumferential direction on the outer edge of the protective arc-shaped box 301. A thermally conductive silicone ring 304 is glued to the inner edge of the protective arc-shaped box 301. A counterweight inner ring 305 is snapped into the center of the inner side of the protective arc-shaped box 301. The outer side of the thermally conductive silicone ring 304 slides tightly against the inner wall of the protective arc-shaped box 301. The side of the counterweight inner ring 305 is interlocked with the protective arc-shaped box 301 through round blocks and grooves. The protective arc-shaped box 301 allows the flow of air to be diverted. Each component is installed on the outside of the brushless motor body 1. The heat generated inside the brushless motor body 1 is transferred to the outside through the thermal conductive silicone ring 304. The inner counterweight ring 305 provides counterweight to the side of the hub brushless motor to keep the hub brushless motor balanced during rotation. The airflow guide arc strip 302 increases the contact area between the side of the protective arc box 301 and the airflow, thereby effectively improving the overall heat dissipation efficiency of the hub brushless motor. This ensures that the hub brushless motor can maintain a low temperature during continuous use, effectively improving the stability and service life of the hub brushless motor.
[0038] An external protective isolation mechanism 4 is provided on the outside of the brushless motor body 1;
[0039] The external protective isolation mechanism 4 includes a mounting collar 401, a support corner block 402, a compression hole 403, and a support rigid plate 404;
[0040] The outer side of the brushless motor body 1 is tightly covered by a mounting ring 401. A support corner block 402 is adhered to the outer side of the brushless motor body 1 at a position corresponding to the side of the splicing side plate 204. Compression holes 403 are evenly spaced on the side of the support corner block 402. A support rigid plate 404 is inserted and installed inside the support corner block 402 at a position corresponding to the side of the compression holes 403. The outer side of the support corner block 402 is tightly fitted to the inner side of the mounting ring 401. The end face of the support corner block 402 is flush with the back of the brushless motor body 1 and the side of the splicing side plate 204. The components are aligned with each other, and the mounting ring 401 covers the outside of the brushless motor body 1. The support corner block 402 provides auxiliary support for the inside of the mounting ring 401. The compression hole 403 allows the outside of the brushless motor body 1 to elastically deform under pressure. The support hard plate 404 increases the overall structural strength of the support corner block 402. By utilizing the compressibility of the mounting ring 401 and the support corner block 402, the hub brushless motor is installed more stably, further improving the safety of the hub brushless motor.
[0041] The working principle and usage process of this utility model are as follows: In practical applications, when it is necessary to assemble and install the hub brushless motor, the splicing cover plate 202 can be used to quickly snap the side of the center drive rotor 201 to ensure that the center drive rotor 201 can be smoothly installed inside the brushless motor body 1. The silicone insulating inner plate 203 isolates the side of the splicing cover plate 202 to reduce the heat transmitted outward during the rotation of the center drive rotor 201. The mounting bolts 205 can be used to fix the brushless motor body 1 and the splicing cover plate 202 to improve the overall stability of the hub brushless motor installation. At the same time, the splicing side plate 204 can be used to quickly snap the brushless motor body 1 into the interior of a children's toy car, thereby effectively improving the ease of use of the hub brushless motor.
[0042] When auxiliary heat dissipation of the hub brushless motor is required, the components can be installed on the outside of the brushless motor body 1 through the protective arc box 301. Then, the heat generated inside the brushless motor body 1 is transferred to the outside through the thermal conductive silicone ring 304. The inner counterweight ring 305 is used to counterweight the side of the hub brushless motor to keep the hub brushless motor balanced during rotation. Then, the airflow guide arc strip 302 increases the contact area between the side of the protective arc box 301 and the airflow, thereby effectively improving the overall heat dissipation efficiency of the hub brushless motor. This ensures that the hub brushless motor can maintain a low temperature during continuous use, effectively improving the stability and service life of the hub brushless motor.
[0043] When protection of the outside of the brushless motor body 1 is required, the components are covered to the outside of the brushless motor body 1 by the mounting ring 401, and the inside of the mounting ring 401 is further supported by the support corner block 402. The compression hole 403 allows the outside of the brushless motor body 1 to elastically deform under pressure. At the same time, the support hard plate 404 increases the overall structural strength of the support corner block 402. The compressibility of the mounting ring 401 and the support corner block 402 makes the hub brushless motor more stable to install, further improving the safety of the hub brushless motor.
[0044] 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 silent hub brushless motor for a children's toy car, comprising a brushless motor body (1), characterized in that: The brushless motor body (1) is equipped with a quick-assembly protective mechanism (2) inside; The rapid splicing protective mechanism (2) includes a central drive rotor (201), a splicing cover plate (202), a silicone insulating inner plate (203), a splicing side plate (204), and mounting bolts (205); A central drive rotor (201) is installed in the middle of the inner side of the brushless motor body (1). A splicing cover plate (202) is snapped onto one side of the brushless motor body (1) at the position corresponding to the outer side of the central drive rotor (201). A silicone insulating inner plate (203) is glued to the middle of the inner side of the splicing cover plate (202). Splicing side plates (204) are evenly and equidistantly arranged in the circumferential direction on the outer side of the brushless motor body (1). Mounting bolts (205) are evenly and equidistantly inserted along the circumferential direction on the edges of the brushless motor body (1) and the splicing cover plate (202).
2. The silent hub brushless motor for a children's toy car according to claim 1, characterized in that, The side of the splicing cover plate (202) is tightly slidably attached to the side of the brushless motor body (1), and mounting holes are provided on the side of the brushless motor body (1) and the side of the splicing cover plate (202) at the outer positions of the mounting bolts (205).
3. The silent hub brushless motor for a children's toy car according to claim 1, characterized in that, The brushless motor body (1) is provided with a side protection heat conduction mechanism (3) on its side; The side protection heat conduction mechanism (3) includes a protective arc-shaped box (301), a flow-guiding arc-shaped strip (302), a heat-conducting silicone ring (304), and a counterweight inner ring (305); The brushless motor body (1) and the middle of the side of the splicing side plate (204) are both bonded with protective arc-shaped boxes (301). The outer side of the protective arc-shaped box (301) is fixedly connected with flow-guiding arc-shaped strips (302) at equal intervals along the circumferential direction. The inner side of the protective arc-shaped box (301) is bonded with a thermally conductive silicone ring (304). The inner center of the protective arc-shaped box (301) is snapped with a counterweight inner ring (305).
4. The silent hub brushless motor for a children's toy car according to claim 3, characterized in that, The outer side of the thermally conductive silicone ring (304) is tightly slidably attached to the inner wall of the protective arc-shaped box (301), and the side of the counterweight inner ring (305) is interlocked with the protective arc-shaped box (301) through a round block and a round groove.
5. A silent hub brushless motor for a children's toy car according to claim 1, characterized in that, An external protective isolation mechanism (4) is provided on the outside of the brushless motor body (1); The external protective isolation mechanism (4) includes a mounting collar (401), a support corner block (402), a compression hole (403), and a support hard plate (404); The brushless motor body (1) is tightly covered with an installation ring (401) on the outside. A support corner block (402) is glued to the outside of the brushless motor body (1) at the position corresponding to the side of the splicing side plate (204). The support corner block (402) has compression round holes (403) evenly spaced on the side. A support hard plate (404) is inserted and installed inside the support corner block (402) at the position corresponding to the side of the compression round hole (403).
6. A silent hub brushless motor for a children's toy car according to claim 5, characterized in that, The outer side of the support corner block (402) is closely fitted with the inner side of the mounting ring (401), and the end face of the support corner block (402) is flush with the back of the brushless motor body (1) and the side of the splicing side plate (204).