Heat dissipation type electric tricycle brake disc

Abstract

This utility model discloses a heat-dissipating electric tricycle brake disc, including a brake drum and a circular brake disc disposed on the circular outer wall of the left end of the brake drum. The circular brake disc and the brake drum are fixedly connected by welding. The brake drum is circular in shape and has an opening at the left end. The circular brake disc is flush with the outer wall of the left end of the brake drum. Multiple heat dissipation holes are equidistantly arranged inside the circular brake disc near the edge. By adding multiple airflow-type heat dissipation devices equidistantly on the outer wall of the right end of the brake drum, when the brake drum rotates clockwise, the air intake horn collects air and sends it into the airflow compression hood. The airflow is blown onto the outer wall of the brake drum and the circular brake disc through the exhaust hole of the compression hood or the flat exhaust hood and the exhaust port of the exhaust hood, which quickly dissipates heat and avoids high temperature affecting braking performance. The airflow compression hood has an adaptable structure and does not take up too much space. The flat exhaust hood, together with the exhaust port, increases the heat dissipation coverage area and makes the heat dissipation more even and sufficient.

Description

Technical Field

[0001] This utility model belongs to the technical field of vehicle braking systems, specifically relating to a heat-dissipating electric tricycle brake disc. Background Technology

[0002] During the operation of electric tricycles, the braking system is one of the core components ensuring driving safety. As a key actuator of the braking system, the heat dissipation performance of the brake disc directly affects the reliability of the brakes and the safety of the entire vehicle. When electric tricycles brake frequently or continuously under heavy loads or long downhill conditions, the friction between the brake disc and the brake pads (disc brake pads or drum brake shoes) generates a large amount of heat. If the heat cannot be dissipated in time, on the one hand, the temperature of the brake disc itself will rise sharply, which is prone to thermal fade, resulting in a decrease in braking force, affecting the braking effect, increasing the braking distance, and even causing the risk of brake failure; on the other hand, high temperature will accelerate the aging and damage of the brake disc and surrounding components, shorten the service life of the braking system, and increase the maintenance and replacement costs.

[0003] While existing electric tricycle brake discs have simple heat dissipation designs, such as a few ventilation holes in the disc body or a simple heat dissipation structure on the brake drum, their heat dissipation capacity is still insufficient for the heat generated by continuous braking. Especially when dealing with complex working conditions, traditional heat dissipation methods are unable to quickly and efficiently remove the heat generated by braking, failing to meet the increasingly demanding safety performance requirements of electric tricycles. Utility Model Content

[0004] The purpose of this utility model is to provide a heat-dissipating electric tricycle brake disc to solve the problem mentioned in the background art that although the existing electric tricycle brake discs have heat dissipation holes and simple heat dissipation structures, their heat dissipation capacity is insufficient under complex working conditions during continuous braking, making it difficult to quickly and efficiently dissipate heat and meet safety performance requirements.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat-dissipating electric tricycle brake disc, comprising a brake drum and a circular brake disc disposed on the circular outer wall of the left end of the brake drum. The circular brake disc and the brake drum are fixedly connected by welding. The brake drum is generally circular, and the left end of the brake drum is open. The circular brake disc is flush with the outer wall of the left end of the brake drum. The circular brake disc has multiple heat dissipation holes equidistantly disposed inside near its edge. When the circular brake disc is used in conjunction with a disc brake, the heat dissipation holes can dissipate heat. The circular outer wall of the brake drum has multiple concave strip-shaped heat dissipation grooves equidistantly disposed. When the brake drum is used in conjunction with the internal drum brake shoes, the multiple strip-shaped heat dissipation grooves can dissipate heat. The circular outer wall of the right end of the brake drum has multiple airflow-type heat dissipation devices equidistantly disposed.

[0006] Preferably, the airflow cooling device includes an airflow compression shroud, an air inlet horn, and a compression shroud exhaust port. The airflow compression shroud is fixed to the circular outer wall of the brake drum. The airflow compression shroud is flush with the outer wall of the right end of the brake drum, and the total thickness of the airflow compression shroud is less than the distance between the inner wall of the inner diameter and the outer wall of the outer diameter of the circular brake disc. An air inlet horn is connected to the front end of the airflow compression shroud, and multiple compression shroud exhaust ports are equidistantly arranged inside the outer wall of the left end of the airflow compression shroud.

[0007] Preferably, the diameter of the air intake horn is larger than the diameter of the airflow compression shroud. During the clockwise rotation of the brake drum, the air intake horn collects external air and delivers it to the airflow compression shroud. The airflow compression shroud then blows the airflow onto the circular outer wall of the brake drum and the outer wall of the right end of the circular brake disc through multiple compression shroud exhaust holes.

[0008] Preferably, the airflow cooling device further includes a flat exhaust hood and an exhaust port of the exhaust hood. The rear end of the airflow compression hood is connected to the flat exhaust hood. The total thickness of the flat exhaust hood is less than the total thickness of the airflow compression hood. An exhaust port of the exhaust hood is provided at the left end of the flat exhaust hood.

[0009] Preferably, the flat exhaust hood is internally connected to the airflow compression hood, and the exhaust port of the exhaust hood is aligned with the outer wall of the right end of the circular brake disc. The airflow compression hood can deliver airflow into the flat exhaust hood and blow the airflow over a large area onto the outer wall of the circular brake drum and the outer wall of the right end of the circular brake disc through the exhaust port of the exhaust hood.

[0010] Preferably, a bushing is provided inside the center of the brake drum, and a pin groove is provided on the circular inner wall of the bushing. One end of the output shaft of the electric tricycle needs to be inserted into the bushing. A retaining pin is also provided on the output shaft of the electric tricycle, and the retaining pin is inserted into the pin groove.

[0011] Preferably, the outer circular wall of the bushing is also welded with four thickened and reinforcing blocks at equal intervals. The four thickened and reinforcing blocks are all attached to the inner wall of the left side of the right end of the brake drum, and the four thickened and reinforcing blocks are fixedly connected to the inner wall of the left side of the right end of the brake drum by welding.

[0012] Preferably, bolt holes are connected to the center of each of the four thickened and reinforced blocks and the inside of the right end of the brake drum. Tire mounting bolts are inserted into each of the bolt holes, and the nuts of the tire mounting bolts are located at the left end of the thickened and reinforced blocks.

[0013] Compared with the prior art, the present invention provides a heat-dissipating electric tricycle brake disc, which has the following beneficial effects:

[0014] This invention incorporates multiple novel airflow-type heat dissipation devices equidistantly added to the circular outer wall of the brake drum on the right end of a heat-dissipating electric tricycle brake disc. When the electric tricycle is in motion, the brake drum rotates. As the brake drum rotates clockwise, the air intake horn of the airflow-type heat dissipation device rotates to collect external air and send it into the airflow compression shroud. The airflow is then blown onto the brake drum and the outer wall of the circular brake disc through the exhaust port of the compression shroud or a flat exhaust shroud and exhaust port of the exhaust shroud, quickly carrying away the heat generated by the brakes, improving heat dissipation efficiency, and preventing high temperatures from affecting braking performance. Furthermore, the thickness of the airflow compression shroud is less than the distance between the inner and outer diameters of the circular brake disc, and it is flush with the outer wall of the right end of the brake drum, fitting the overall structure of the brake disc without occupying excessive space, ensuring the compactness and installation compatibility of the brake disc. The flat exhaust shroud of this device, in conjunction with the exhaust port of the exhaust shroud, can blow airflow over a large area onto the outer wall of the right end of the brake drum and the circular brake disc. Compared to a single exhaust structure, this increases the heat dissipation coverage area, allowing the heat from all parts of the brake disc to be dissipated more evenly and fully. Attached Figure Description

[0015] Figure 1 This is a left-side perspective three-dimensional structural diagram of a heat-dissipating electric tricycle brake disc according to the present invention.

[0016] Figure 2 This is a rear plan view of a heat-dissipating electric tricycle brake disc according to the present invention.

[0017] Figure 3 This is a right-side perspective three-dimensional structural diagram of a heat-dissipating electric tricycle brake disc according to the present invention.

[0018] Figure 4 This is a right-side perspective three-dimensional structural diagram of the airflow-type heat dissipation device of this utility model.

[0019] Figure 5 This is a left-side perspective three-dimensional structural diagram of the airflow-type heat dissipation device of this utility model.

[0020] In the diagram: 1. Circular brake disc; 2. Heat dissipation hole; 3. Thickened and reinforced block; 4. Bushing; 5. Pin groove; 6. Tire mounting bolt; 7. Airflow cooling device; 8. Brake drum; 9. Strip-shaped heat dissipation groove; 10. Flat exhaust hood; 11. Airflow compression hood; 12. Air intake horn; 13. Compression hood exhaust hole; 14. Exhaust port of exhaust hood. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides, for example Figure 1-5 The diagram shows a heat-dissipating electric tricycle brake disc, comprising a brake drum 8 and a circular brake disc 1 disposed on the circular outer wall of the left end of the brake drum 8. The circular brake disc 1 is fixedly connected to the brake drum 8 by welding. The brake drum 8 is generally circular, with an opening at its left end. The circular brake disc 1 is flush with the outer wall of the left end of the brake drum 8. Multiple heat dissipation holes 2 are equidistantly arranged inside the circular brake disc 1 near its edge. When the circular brake disc 1 is used in conjunction with a disc brake, the heat dissipation holes 2 can dissipate heat. When used in conjunction with a disc brake, the heat generated during braking can be dissipated through the airflow channel formed by the heat dissipation holes 2. The system facilitates heat exchange, dissipating heat to the outside and reducing the temperature of the brake disc. This prevents heat buildup caused by disc brakes from affecting braking performance. The outer wall of the brake drum 8 is equidistantly provided with multiple concave strip-shaped heat dissipation grooves 9. When the brake drum 8 is engaged with the internal drum brake shoes, the multiple strip-shaped heat dissipation grooves 9 can dissipate heat. Specifically, when the brake drum 8 is engaged with the internal drum brake shoes, the heat generated by drum brakes is dissipated by the strip-shaped heat dissipation grooves 9, which increase the contact area between the outer wall of the brake drum 8 and the air, promoting heat transfer to the air and thus dissipating heat and maintaining the temperature stability of the brake drum 8 during drum brake braking.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, a bushing 4 is installed inside the center of the brake drum 8. A pin groove 5 is provided on the circular inner wall of the bushing 4. One end of the output shaft of the electric tricycle needs to be inserted into the bushing 4. A retaining pin is also provided on the output shaft of the electric tricycle, and the retaining pin is inserted into the pin groove 5. Four thickened reinforcing blocks 3 are also welded at equal intervals to the circular outer wall of the bushing 4. All four thickened reinforcing blocks 3 are attached to the inner wall of the left side of the right end of the brake drum 8, and are fixedly connected to the inner wall of the left side of the right end of the brake drum 8 by welding. Bolt holes are connected to the center of each of the four thickened reinforcing blocks 3 and the inner wall of the right end of the brake drum 8. Multiple bolt holes contain... The tire mounting bolt 6 is inserted, and the nut of the tire mounting bolt 6 is located at the left end of the thickened and reinforced block 3. The heat-dissipating electric tricycle brake disc is composed of a brake drum 8, a circular brake disc 1, and various heat dissipation and connection structures. The brake drum 8 has a bushing 4 at its center. The pin groove 5 on the inner wall of the bushing 4 is adapted to the output shaft pin of the electric tricycle to ensure that the brake disc rotates synchronously with the output shaft, providing a basic mechanical connection and power transmission structure for the braking function. The thickened and reinforced block 3 is welded to the outer wall of the bushing 4, which, together with the tire mounting bolt 6, strengthens the connection strength between the brake disc and the tire, ensuring structural stability during driving and braking.

[0024] like Figure 1 , Figure 4 and Figure 5As shown, multiple airflow-type heat dissipation devices 7 are equidistantly arranged on the circular outer wall of the right end of the brake drum 8. Each airflow-type heat dissipation device 7 includes an airflow compression shroud 11, an air inlet horn 12, and a compression shroud exhaust port 13. The airflow compression shroud 11 is fixed to the circular outer wall of the brake drum 8, and is flush with the right end outer wall of the brake drum 8. The total thickness of the airflow compression shroud 11 is less than the distance between the inner wall and outer wall of the inner diameter of the circular brake disc 1. The front end of the airflow compression shroud 11 is connected to the air inlet horn 12. Multiple compression shroud exhaust ports 13 are equidistantly arranged inside the left end outer wall of the airflow compression shroud 11. The diameter of the air inlet horn 12 is larger than the diameter of the airflow compression shroud 11. During the clockwise rotation of the brake drum 8, the air inlet horn 12 collects external air and delivers it to the airflow compression shroud 11, thus compressing the airflow. The air compressor shroud 11 blows airflow onto the outer circular wall of the brake drum 8 and the outer right wall of the circular brake disc 1 through multiple compression shroud exhaust holes 13. The left outer wall of the air compressor shroud 11 is provided with compression shroud exhaust holes 13 at equal intervals. The air entering the air compressor shroud 11 is blown onto the outer circular wall of the brake drum 8 and the outer right wall of the circular brake disc 1 through these exhaust holes. The flowing air exchanges heat with the high temperature of the brake drum 8 and brake disc, carrying away heat and realizing active airflow heat dissipation, which enhances the heat dissipation effect. The advantage of the intake horn 12 having a larger diameter than the air compressor shroud 11 is that when the brake drum 8 rotates clockwise, the intake horn 12 collects external air as it rotates. Due to the difference in diameter, the air smoothly enters the air compressor shroud 11. The movement process realizes the initial collection and transportation of airflow, providing an airflow source for subsequent heat dissipation.

[0025] like Figure 1 , Figure 4 and Figure 5 As shown, the airflow cooling device 7 also includes a flat exhaust shroud 10 and an exhaust port 14. The flat exhaust shroud 10 is connected to the rear end of the airflow compression shroud 11. The total thickness of the flat exhaust shroud 10 is less than the total thickness of the airflow compression shroud 11. An exhaust port 14 is provided at the left end of the flat exhaust shroud 10. The flat exhaust shroud 10 is internally connected to the airflow compression shroud 11, and the exhaust port 14 is aligned with the right outer wall of the circular brake disc 1. The airflow compression shroud 11 can deliver airflow into the flat exhaust shroud 10, and blow the airflow over a large area onto the circular outer wall of the brake drum 8 and the circular... On the outer wall of the right end of the brake disc 1, the rear end of the airflow compression shroud 11 is connected to the flat exhaust shroud 10. The two are internally connected, and the airflow can enter the flat exhaust shroud 10 from the airflow compression shroud 11 and then be discharged through the exhaust port 14 at the left end of the flat exhaust shroud 10. Since the exhaust port 14 is aligned with the outer wall of the right end of the circular brake disc 1, it can blow the airflow over a large area to the outer wall of the circular brake drum 8 and the outer wall of the right end of the circular brake disc 1. Compared with a single exhaust port, it increases the heat dissipation coverage area, allowing the heat of various parts of the brake disc to be dissipated more evenly and fully, further improving the heat dissipation efficiency and ensuring the stable performance of the brake disc under continuous braking conditions.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat-dissipating electric tricycle brake disc, comprising a brake drum (8) and a circular brake disc (1) disposed on the circular outer wall of the left end of the brake drum (8), wherein the circular brake disc (1) and the brake drum (8) are fixedly connected by welding, the brake drum (8) is generally circular and the left end of the brake drum (8) is open, the circular brake disc (1) is flush with the outer wall of the left end of the brake drum (8), and the circular brake disc (1) has a plurality of heat dissipation holes (2) equidistantly disposed inside near the edge, wherein the heat dissipation holes (2) can play a heat dissipation role when the circular brake disc (1) is used in conjunction with the disc brake, and the circular outer wall of the brake drum (8) has a plurality of concave strip-shaped heat dissipation grooves (9) equidistantly disposed, wherein the plurality of strip-shaped heat dissipation grooves (9) can play a heat dissipation role when the brake drum (8) is used in conjunction with the internal drum brake shoes, wherein the plurality of strip-shaped heat dissipation grooves (9) can play a heat dissipation role, characterized in that: The brake drum (8) has multiple airflow-type heat dissipation devices (7) equidistantly arranged on the circular outer wall at the right end; The airflow cooling device (7) includes an airflow compression shroud (11), an air inlet horn (12), and a compression shroud exhaust port (13). The airflow compression shroud (11) is fixed on the circular outer wall of the brake drum (8). The airflow compression shroud (11) is flush with the outer wall of the right end of the brake drum (8), and the total thickness of the airflow compression shroud (11) is less than the distance between the inner wall of the inner diameter and the outer wall of the outer diameter of the circular brake disc (1). The front end of the airflow compression shroud (11) is connected to the air inlet horn (12), and multiple compression shroud exhaust ports (13) are equidistantly arranged inside the outer wall of the left end of the airflow compression shroud (11).

2. The heat-dissipating electric tricycle brake disc according to claim 1, characterized in that: The diameter of the air intake horn (12) is larger than the diameter of the airflow compression shroud (11). During the clockwise rotation of the brake drum (8), the air intake horn (12) collects external air and delivers it to the airflow compression shroud (11). The airflow compression shroud (11) blows the airflow onto the outer circular wall of the brake drum (8) and the outer right wall of the circular brake disc (1) through multiple compression shroud exhaust holes (13).

3. A heat-dissipating electric tricycle brake disc according to claim 2, characterized in that: The airflow cooling device (7) further includes a flat exhaust hood (10) and an exhaust port (14). The rear end of the airflow compression hood (11) is connected to the flat exhaust hood (10). The total thickness of the flat exhaust hood (10) is less than the total thickness of the airflow compression hood (11). An exhaust port (14) is provided at the left end of the flat exhaust hood (10).

4. A heat-dissipating electric tricycle brake disc according to claim 3, characterized in that: The flat exhaust hood (10) is internally connected to the airflow compression hood (11), and the exhaust port (14) of the exhaust hood is aligned with the outer wall of the right end of the circular brake disc (1). The airflow compression hood (11) can deliver airflow into the flat exhaust hood (10) and blow the airflow over a large area onto the outer wall of the circular brake drum (8) and the outer wall of the right end of the circular brake disc (1) through the exhaust port (14).

5. A heat-dissipating electric tricycle brake disc according to claim 1, characterized in that: A bushing (4) is provided inside the center of the brake drum (8). A pin groove (5) is provided on the inner circular wall of the bushing (4). One end of the output shaft of the electric tricycle needs to be inserted into the bushing (4). A locking pin is also provided on the output shaft of the electric tricycle, and the locking pin is inserted into the pin groove (5).

6. A heat-dissipating electric tricycle brake disc according to claim 5, characterized in that: The bushing (4) is also welded with four thickened and reinforcing blocks (3) at equal intervals on its circular outer wall. The four thickened and reinforcing blocks (3) are all attached to the inner wall of the left side of the right end of the brake drum (8), and the four thickened and reinforcing blocks (3) are all fixedly connected to the inner wall of the left side of the right end of the brake drum (8) by welding.

7. A heat-dissipating electric tricycle brake disc according to claim 6, characterized in that: The center of each of the four thickened and reinforced blocks (3) is connected to the inside of the right end of the brake drum (8) with bolt holes. Each of the bolt holes is fitted with a tire mounting bolt (6), and the nut of the tire mounting bolt (6) is located at the left end of the thickened and reinforced block (3).

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