Brake device for electric vehicle

Abstract

The utility model is suitable for the technical field of electric vehicles, and provides a brake device for an electric vehicle. A concave jaw is arranged in the brake caliper; the brake disc is arranged in the jaw; the brake disc comprises a left brake pad, a right brake pad and a cooling assembly arranged on the brake caliper. The cooling assembly comprises a plurality of heat dissipation holes formed in the outer side of the brake caliper, and the heat dissipation holes communicate with one another to form a heat dissipation through groove used for heat dissipation. The cooling fan is arranged at the top of the brake caliper, and the cooling fan is communicated with one of the cooling holes; according to the brake device, efficient brake performance and excellent heat dissipation performance are guaranteed, so that the driving safety is greatly improved, the service life of parts is prolonged, the brake device can rapidly decelerate or stop at a critical moment by rapidly responding to the brake action of a driver, the driving safety is guaranteed, and meanwhile, the service life of the brake device is prolonged. The provided cooling assembly effectively solves the problem of heat generated in the braking process, and the influence of overheating of the brake caliper and the brake disc on the performance and the service life is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric vehicles, and in particular relates to a brake device for an electric vehicle. Background Art

[0002] With the continuous development of modern transportation, the performance and reliability of the brake system as a core component to ensure driving safety have attracted increasing attention. When driving at high speed or braking frequently, if the large amount of heat generated by the friction between the brake caliper and the brake disc cannot be effectively dissipated, it will cause the components to overheat, thus affecting the braking performance and even threatening driving safety.

[0003] Although traditional brake systems can meet basic braking needs to a certain extent, their heat dissipation performance still needs to be improved. Especially under extreme conditions such as high temperature, high humidity or long-term continuous braking, the traditional brake system's insufficient heat dissipation capacity can easily lead to premature wear of brake components or even thermal failure, thereby greatly reducing the service life and reliability of the brake system. Utility Model Content

[0004] The utility model provides a brake device for an electric vehicle, aiming to solve the problem that the heat dissipation performance of a traditional brake system is still insufficient. Under extreme conditions such as high temperature, high humidity or continuous braking, its heat dissipation capacity is limited, which can easily lead to premature wear and thermal failure of brake components, thereby reducing service life and reliability.

[0005] The utility model is implemented as follows: a brake device for an electric vehicle comprises a brake caliper; a concave jaw is arranged in the brake caliper; a brake disc is arranged in the jaw; the brake disc comprises a left brake pad and a right brake pad which are arranged opposite to each other and fixedly connected, and the cross-sections of the left brake pad and the right brake pad are both circular; a cooling component is arranged on the brake caliper; the cooling component comprises: a plurality of heat dissipation holes arranged on the outer side of the brake caliper, and a plurality of the heat dissipation holes are connected to form a heat dissipation groove for heat dissipation; a heat dissipation fan is arranged on the top of the brake caliper, and the heat dissipation fan is connected to one of the heat dissipation holes.

[0006] Preferably, a brake chamber is provided in the brake caliper, and the brake chamber is connected to a hydraulic oil pipe; a group of pistons are symmetrically arranged on the inner walls opposite to each other of the caliper, and brake friction plates are arranged on the outer sides of the two pistons.

[0007] Preferably, a plurality of heat dissipation slots are provided on the outer circumferential wall of the brake disc, and the plurality of heat dissipation slots are distributed at equal intervals.

[0008] Preferably, an axle is arranged in the middle of the brake disc, one end of the axle is connected to the vehicle body, and one side of the brake caliper is connected to the vehicle body.

[0009] Preferably, a reserved hole is provided in the middle of the brake disc, and a connecting flange is provided on the outer side of the reserved hole.

[0010] Preferably, a flexible sealing ring is provided at the connecting end surface between the cooling fan and the brake caliper.

[0011] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0012] First, the device achieves excellent heat dissipation performance and extends the service life of components. The heat dissipation holes increase the heat dissipation area, allowing heat to be dissipated more effectively. The cooling fan further accelerates the heat dissipation by sucking in cold air and blowing it through the brake caliper. In addition, the heat dissipation slots on the brake disc also increase the surface area and ventilation, which helps to evenly dissipate heat and improve heat dissipation efficiency. These designs together ensure that the brake device can maintain good performance under long-term or high-frequency use, extending the service life of components.

[0013] Second: This device ensures efficient braking performance and driving safety. When the driver needs to slow down or stop, the braking system can respond quickly and transmit hydraulic pressure to the brake caliper through the hydraulic oil pipe. This pressure pushes the piston and brake friction pad to closely contact the brake disc, thereby generating sufficient friction to slow down or stop the wheel. This design ensures that the braking device can respond quickly and effectively to the driver's braking action, greatly improving driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the position structure of the brake caliper and the brake disc of the utility model;

[0016] Figure 3 It is a side view of the utility model;

[0017] Figure 4 It is a front view of the utility model;

[0018] In the figure: 1. Brake caliper; 2. Jaw; 3. Brake disc; 4. Left brake pad; 5. Right brake pad; 6. Heat dissipation holes; 7. Cooling fan; 8. Brake chamber; 9. Hydraulic oil pipe; 10. Piston; 11. Brake friction pad; 12. Heat dissipation slot; 13. Axle; 14. Vehicle body; 15. Reserved hole; 16. Connecting flange; 17. Sealing ring. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The utility model provides a brake device for an electric vehicle, such as Figure 1-4 As shown, it includes a brake caliper 1; a concave jaw 2 is arranged in the brake caliper 1; a brake disc 3 is arranged in the jaw 2; the brake disc 3 includes a left brake pad 4 and a right brake pad 5 which are arranged opposite to each other and fixedly connected, and the cross-sections of the left brake pad 4 and the right brake pad 5 are both circular; a cooling component is arranged on the brake caliper 1; the cooling component includes: a plurality of heat dissipation holes 6 arranged on the outside of the brake caliper 1, and a plurality of the heat dissipation holes 6 are connected to form a heat dissipation groove for heat dissipation; a heat dissipation fan 7 is arranged on the top of the brake caliper 1, and the heat dissipation fan 7 is connected to one of the heat dissipation holes 6.

[0022] It should be noted that, since the heat dissipation performance of the traditional brake system is still insufficient, under extreme conditions such as high temperature, high humidity or continuous braking, its heat dissipation capacity is limited, which can easily lead to premature wear and thermal failure of the brake components, and reduce the service life and reliability. This solution optimizes the heat dissipation structure, such as adding heat dissipation holes 6, setting a heat dissipation fan 7 and heat dissipation slots 12 on the brake disc 3, etc., to effectively improve the heat dissipation area and heat dissipation efficiency of the brake caliper 1 and the brake disc 3; at the same time, by controlling the hydraulic pressure of the hydraulic oil pipe 9, it is ensured that the brake caliper 1 can respond quickly and accurately to the driver's braking action and provide stable and reliable braking force; therefore, the brake device of the utility model not only has excellent braking performance, can quickly decelerate or stop under various conditions to ensure driving safety; it also has excellent heat dissipation performance, can effectively extend the service life of the brake components, and improve the reliability and durability of the entire vehicle.

[0023] Specifically, in this embodiment, the present solution mainly includes a brake caliper 1; when the driver needs to slow down or stop, the brake system is operated to start the brake caliper 1 to work; the concave jaw 2 in the brake caliper 1 is designed to fit tightly with the brake disc 3 to ensure that sufficient friction can be generated during the braking process; the brake disc 3 is composed of a left brake pad 4 and a right brake pad 5 that are arranged opposite to each other on the left and right, and the two parts are fixedly connected together, and their cross-sections are all circular; when the brake caliper 1 is working, the piston 10 inside it will push the brake friction pad 11 close to clamp the brake disc 3; this contact generates friction, thereby slowing down or stopping the wheels of the electric vehicle;

[0024] During the braking process, the brake caliper 1 will generate heat due to the effect of friction; in order to ensure that these components do not overheat, the brake device is equipped with a cooling assembly; the cooling assembly includes a plurality of heat dissipation holes 6 arranged on the outside of the brake caliper 1, and these heat dissipation holes 6 are interconnected to form heat dissipation grooves, thereby increasing the heat dissipation area; at the same time, a heat dissipation fan 7 is also provided on the top of the brake caliper 1, and the fan is connected to one of the heat dissipation holes 6; when the fan is working, it can inhale external cold air and blow it through the brake caliper 1 through the heat dissipation grooves, thereby taking away the heat generated during the braking process, thereby realizing the cooling of the brake caliper 1.

[0025] In a further preferred embodiment of the present invention, Figure 2 As shown, a brake chamber 8 is provided in the brake caliper 1 , and the brake chamber 8 is connected to a hydraulic oil pipe 9 ; a group of pistons 10 are symmetrically arranged on the opposite inner walls of the jaws 2 , and brake friction pads 11 are arranged on the outer sides of the two pistons 10 .

[0026] In this embodiment, the brake caliper 1 receives hydraulic pressure from the brake system through the hydraulic oil pipe 9. When the driver operates the brake, the hydraulic system responds to this action and transmits hydraulic pressure to the brake chamber 8 in the brake caliper 1 through the hydraulic oil pipe 9. The piston 10 in the brake caliper 1 responds to the change of hydraulic pressure. When the hydraulic pressure acts on the piston 10, the piston 10 is pushed and moves outward. This movement drives the brake friction pad 11 arranged on the outer side of the piston 10 to make it contact with the brake disc 3 more closely.

[0027] As the contact between the brake friction pad 11 and the brake disc 3 increases, the friction force also increases, thereby achieving the function of decelerating or stopping the wheels of the electric vehicle. This design enables the brake device to respond quickly and effectively to the driver's braking action to ensure driving safety.

[0028] In a further preferred embodiment of the present invention, Figure 1-3 As shown, a plurality of heat dissipation slots 12 are provided on the outer circumferential wall of the brake disc 3, and the plurality of heat dissipation slots 12 are distributed at equal intervals.

[0029] In this embodiment, the presence of the heat dissipation slots 12 increases the surface area of ​​the brake disc 3, allowing more heat to be exchanged with the outside air through the holes, ensuring that heat can be evenly dissipated from various parts of the brake disc 3 and avoiding local overheating; in addition, the design of the heat dissipation slots 12 can also increase the ventilation of the brake disc 3, so that during the braking process, air can flow through the brake disc 3 more smoothly and take away more heat, which not only improves the heat dissipation efficiency of the brake disc 3, but also helps to extend the service life of the brake disc 3.

[0030] In a further preferred embodiment of the present invention, Figure 2 As shown, an axle 13 is provided in the middle of the brake disc 3 , one end of the axle 13 is connected to a vehicle body 14 , and one side of the brake caliper 1 is connected to the vehicle body 14 .

[0031] In this embodiment, when the driver performs the braking operation, the brake caliper 1 starts to work. Since one side of the brake caliper 1 is connected to the vehicle body 14, it can maintain a fixed position relative to the vehicle body 14. As the piston 10 inside the brake caliper 1 moves, the brake friction pad 11 is pushed and clamps the brake disc 3, generating friction to slow down or stop the wheel. The connection between the brake disc 3 and the axle 13 ensures that the brake disc 3 can rotate with the wheel. At the same time, the connection between the axle 13 and the vehicle body 14 ensures a stable connection between the entire brake device and the vehicle. This design enables the brake device to work effectively while ensuring driving safety.

[0032] In a further preferred embodiment of the present invention, Figure 1 As shown, a reserved hole 15 is provided in the middle of the brake disc 3 , and a connecting flange 16 is provided on the outer side of the reserved hole 15 .

[0033] In this embodiment, the reserved hole 15 is used to install other components, and the connecting flange 16 is installed on the outside of the reserved hole 15, and its function is to provide a stable connection point to enhance the connection strength and stability between the brake disc 3 and other related components.

[0034] In a further preferred embodiment of the present invention, Figure 2 As shown, a flexible sealing ring 17 is provided at the connecting end surface between the cooling fan 7 and the brake caliper 1 .

[0035] In this embodiment, the flexible sealing ring 17 is provided to facilitate improving the stability of the connection of the heat dissipation fan 7 .

[0036] Working principle: When the driver needs to slow down or stop, he will operate the brake system, and the brake caliper 1 will start to work; since one side of the brake caliper 1 is connected to the vehicle body 14, it can maintain a fixed position relative to the vehicle body 14; at this time, the brake system transmits hydraulic pressure to the brake chamber 8 in the brake caliper 1 through the hydraulic oil pipe 9; when the hydraulic pressure acts on the piston 10 in the brake caliper 1, the piston 10 is pushed and moves outward; this movement will drive the brake friction pad 11 arranged on the outside of the piston 10, so that it is in closer contact with the brake disc 3;

[0037] The brake disc 3 is composed of a left brake pad 4 and a right brake pad 5 which are arranged opposite to each other on the left and right sides. The two parts are fixedly connected together, and their cross sections are both circular. The concave jaw 2 in the brake caliper 1 is designed to closely match the shape of the brake disc 3, ensuring that sufficient friction can be generated during the braking process. As the contact between the brake friction pad 11 and the brake disc 3 increases, the friction also increases, thereby slowing down or stopping the wheels of the electric vehicle.

[0038] During the braking process, the brake caliper 1 and the brake disc 3 generate heat due to the friction force. In order to ensure that these components do not overheat, the brake device is equipped with a cooling assembly. The cooling assembly includes a plurality of heat dissipation holes 6 arranged on the outside of the brake caliper 1. These heat dissipation holes 6 are interconnected to form a heat dissipation groove, thereby increasing the heat dissipation area. At the same time, a heat dissipation fan 7 is also arranged on the top of the brake caliper 1. The fan is connected to one of the heat dissipation holes 6. When the fan is working, it can inhale external cold air and blow it through the brake caliper 1 through the heat dissipation groove to take away the heat generated during the braking process, thereby realizing the cooling of the brake caliper 1.

[0039] In addition, the heat dissipation slots 12 on the brake disc 3 also play a key role; the presence of these holes increases the surface area of ​​the brake disc 3, allowing more heat to be exchanged with the outside air through the holes; this not only ensures that the heat can be evenly dissipated from various parts of the brake disc 3, avoiding local overheating, but also increases the ventilation of the brake disc 3, improves the heat dissipation efficiency, and helps to extend the service life of the brake disc 3;

[0040] During the entire braking process, the connection between the brake disc 3 and the axle 13 ensures that the brake disc 3 can rotate with the wheel, while the connection between the axle 13 and the vehicle body 14 ensures a stable connection between the entire brake device and the vehicle; this design enables the brake device to work effectively while ensuring driving safety.

[0041] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0042] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0043] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0044] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A brake device for an electric vehicle, characterized in that: include: Brake calipers; The brake caliper is provided with a concave jaw; a brake disc disposed in the jaws; The brake disc comprises a left brake pad and a right brake pad which are arranged opposite to each other and fixedly connected, and the cross sections of the left brake pad and the right brake pad are both circular; a cooling assembly provided on the brake caliper; The cooling assembly comprises: A plurality of heat dissipation holes are arranged on the outer side of the brake caliper, wherein the plurality of heat dissipation holes are connected to form a heat dissipation slot for heat dissipation; A cooling fan is arranged on the top of the brake caliper, and the cooling fan is connected to one of the cooling holes.

2. A brake device for an electric vehicle as claimed in claim 1, characterized in that: A brake chamber is provided in the brake caliper, and the brake chamber is connected with a hydraulic oil pipe; a group of pistons are symmetrically arranged on the inner walls opposite to each other of the caliper, and brake friction plates are arranged on the outer sides of the two pistons.

3. A brake device for an electric vehicle as claimed in claim 2, characterized in that: A plurality of heat dissipation slots are arranged on the outer circumferential wall of the brake disc, and the plurality of heat dissipation slots are distributed at equal distances.

4. A brake device for an electric vehicle as claimed in claim 3, characterized in that: An axle is arranged in the middle of the brake disc, one end of the axle is connected to the vehicle body, and one side of the brake caliper is connected to the vehicle body.

5. A brake device for an electric vehicle as claimed in claim 4, characterized in that: A reserved hole is arranged in the middle of the brake disc, and a connecting flange is arranged on the outer side of the reserved hole.

6. A brake device for an electric vehicle as claimed in claim 4, characterized in that: The connecting end surface between the cooling fan and the brake caliper is provided with a flexible sealing ring.

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