Disc brake structure of electric vehicle

Abstract

The utility model relates to the technical field of electric vehicles, and provides an electric vehicle disc brake structure which comprises brake calipers and a brake disc. The brake disc is mounted on the electric vehicle, the fender is arranged on brake calipers and comprises a base and an arc portion, and a first screw hole is formed in the base. A second screw hole corresponding to the first screw hole is formed in the upper end of the brake caliper; the fender and the brake calipers are detachably connected in the mode that bolts penetrate through the first screw holes and the second screw holes. And the arc part is used for shielding a touch area of the brake disc and the brake calipers. The fender is directly installed on the brake calipers, a brake disc does not need to be specially designed, and therefore the fender is suitable for most electric vehicles adopting disc brakes for braking, and the touch area of the brake disc and the brake calipers is effectively shielded.

Description

Technical Field

[0001] The present application relates to the technical field of electric vehicles, and specifically to an electric vehicle disc brake structure. Background Art

[0002] China's electric two-wheeler fleet is poised to surpass 500 million, making a significant contribution to reducing global carbon emissions and promoting environmental protection. Without electric two-wheelers in cities, traffic congestion and pollution will worsen. Electric two-wheelers are not only a necessity but also a vital part of people's livelihoods, playing an irreplaceable role, especially for short-distance travel.

[0003] Disc brakes play a crucial role in the riding of electric two-wheeled vehicles. If the disc brake calipers become clogged with foreign matter such as mud and sand, it can accelerate brake shoe wear, leading to safety hazards such as brake failure. Therefore, dust and sand protection in disc brakes is crucial to the safety of electric vehicles.

[0004] CN217416016U discloses a fender for an electric vehicle disc brake, the cross-section of which is U-shaped with an opening facing downward; the fender comprises a first plate body, a second plate body, and a connecting plate body, the connecting plate body being an arc-shaped plate body with an opening facing downward, the first plate body and the second plate body being connected to both sides of the connecting plate body; a third plate body is extended downward from the first plate body, and the third plate body can be suitably provided with a through hole.

[0005] The above patent document covers the upper part of the disc brake disc with a fender, and the disc brake disc is located between the first plate and the second plate, thereby preventing mud from splashing onto the brake pads, protecting the brake pads and reducing the wear of the brake pads. The fixing method recorded in its specification is: "When the fender is applied to the front wheel of the electric vehicle, part of the disc brake disc body is placed between the first plate and the second plate, with the first plate facing outward, that is, the first plate is located between the front fork and the disc brake disc body, and then the mounting nut is passed through the through hole." However, due to the wide variety of electric vehicle models, the fixing method and fender structure of the above patent document are difficult to apply to all models. Its specification also records that "the through hole is adaptively opened according to different disc brake disc installation methods."

[0006] Based on this, the technical problem to be solved by this application is: how to provide a disc brake structure with anti-mud and sand function that is suitable for most models of electric vehicles. Utility Model Content

[0007] In order to solve the above technical problems, the present application provides an electric vehicle disc brake structure. The fender of the present application is directly installed on the brake caliper, and no special design of the brake disc is required. Therefore, it is suitable for most electric vehicles that use disc brakes, and it also effectively blocks the contact area between the brake disc and the brake caliper.

[0008] The technical solution of this application is:

[0009] A disc brake structure for an electric vehicle comprises a brake caliper and a brake disc; the brake disc is mounted on the electric vehicle and further comprises a mudguard arranged on the brake caliper, the mudguard comprising a base and an arc portion, the base being provided with a first screw hole; the upper end of the brake caliper being provided with a second screw hole corresponding to the first screw hole; the mudguard and the brake caliper are detachably connected by bolts passing through the first screw hole and the second screw hole; the arc portion is used to shield the contact area between the brake disc and the brake caliper.

[0010] In the above-mentioned electric vehicle disc brake structure, the top end of the arc portion is not lower than the top end of the brake disc.

[0011] In the above-mentioned electric vehicle disc brake structure, the fender is made of plastic.

[0012] In the above-mentioned electric vehicle disc brake structure, the left part of the brake disc is located inside the brake caliper.

[0013] In the above-mentioned electric vehicle disc brake structure, it also includes a connecting member, the brake caliper is arranged at one end of the connecting member; a third screw hole is provided at one end of the connecting member; a fourth screw hole corresponding to the third screw hole is provided at one end of the brake caliper; the connecting member and the brake caliper are detachably connected by bolts passing through the third screw hole and the fourth screw hole.

[0014] In the above-mentioned electric vehicle disc brake structure, a boss is provided on the inner side of the connecting member; the boss is provided with a through hole for fixing the connecting member on the electric vehicle; and the brake disc is located on the inner side of the connecting member.

[0015] One of the above technical solutions of this application has at least one of the following advantages or beneficial effects:

[0016] The present application disassembles the fender and the brake caliper by correspondingly setting a first screw hole and a second screw hole on the base of the fender and the brake caliper. This connection method is suitable for most electric vehicles that use disc brakes. In actual driving, mud and sand always splash from the upper end into the contact area between the brake caliper and the brake disc as the wheels rotate, so the arc design of the fender can more effectively block the contact area between the brake disc and the brake caliper. Of course, the present application can solve the problem of accelerated wear of the brake disc due to mud and sand entering the brake caliper, thereby increasing the service life of the brake disc and improving driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of Example 1 of the present application;

[0018] Figure 2 This is a front view of Example 1 of the present application.

[0019] Wherein, the reference numerals are respectively:

[0020] 1. Brake caliper; 2. Brake disc; 3. Fender; 31. Base; 32. Arc; 4. Connector; 41. Boss; 101. First screw hole; 102. Second screw hole; 103. Third screw hole; 104. Fourth screw hole; 105. Through hole. DETAILED DESCRIPTION

[0021] The following is a clear and complete description of the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0022] Example 1

[0023] refer to Figure 1 、 2 , an electric vehicle disc brake structure, including a brake caliper 1 and a brake disc 2; the brake disc 2 is installed on the electric vehicle, and also includes a fender 3 arranged on the brake caliper 1, the fender 3 includes a base 31 and an arc portion 32, the base 31 is provided with a first screw hole 101; the upper end of the brake caliper 1 is provided with a second screw hole 102 corresponding to the first screw hole 101; the fender 3 and the brake caliper 1 are detachably connected by bolts passing through the first screw hole 101 and the second screw hole 102; the arc portion 32 is used to shield the contact area between the brake disc 2 and the brake caliper 1.

[0024] During actual driving, because one end of the brake caliper 1 is closed, it has a certain anti-mud and stone effect, but mud and sand always splash with the rotation of the wheel, so some of the splashed mud and sand will splash from the upper end into the contact area between the brake caliper 1 and the brake disc 2.

[0025] In this embodiment, a first screw hole 101 and a second screw hole 102 are correspondingly provided on the base 31 of the fender 3 and the brake caliper 1 to detachably connect the two. This connection method is suitable for most electric vehicles that use disc brakes, because electric vehicles that use disc brakes cannot be without the brake caliper 1 as a major component; the arc portion 32 of the fender 3 is designed to more effectively block the contact area between the brake disc 2 and the brake caliper 1; of course, this embodiment can solve the problem of accelerated wear of the brake disc 2 due to mud and sand entering the brake caliper 1, thereby increasing the service life of the brake disc 2 and improving driving safety.

[0026] In this embodiment, the top of the arc portion 32 is not lower than the top of the brake disc 2. With this design, the fender 3 can also prevent mud and stones from splashing onto the brake disc 2 to a certain extent, thereby preventing abnormal braking noise and effectively further extending the service life of the brake component.

[0027] As a preferred embodiment of the present invention, the fender 3 is made of plastic. In this preferred embodiment, the fender 3 has a lower production cost and the same effect. Moreover, the fender 3 is also a wearing part to a certain extent, and the use of plastic is more in line with actual needs.

[0028] In actual use, the left part of the brake disc 2 is located inside the brake caliper 1. Referring to the figure, the brake caliper 1 and the brake disc 2 are arranged front and back along the direction of wheel rotation. Under this design, the brake caliper 1 also has a certain mud and stone blocking function. In combination with the mud guard 3, it can achieve the purpose of protecting the brake disc 2 from multiple angles.

[0029] In this embodiment, specifically, a connecting member 4 is further included, and the brake caliper 1 is arranged at one end of the connecting member 4; a third screw hole 103 is provided at one end of the connecting member 4; a fourth screw hole 104 corresponding to the third screw hole 103 is provided at one end of the brake caliper 1; the connecting member 4 and the brake caliper 1 are detachably connected by bolts passing through the third screw hole 103 and the fourth screw hole 104.

[0030] More specifically, a boss 41 is provided on the inner side of the connecting member 4 ; the boss 41 is provided with a through hole 105 for fixing the connecting member 4 on the electric vehicle; and the brake disc 2 is located on the inner side of the connecting member 4 .

[0031] Under the above design, the connector 4 plays a role in connecting the electric vehicle and the disc brake structure on the one hand, and on the other hand, since the brake disc 2 is arranged on the inner side of the connector 4, the connector 4 also plays a role in protecting the brake disc 2.

[0032] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An electric vehicle disc brake structure, comprising a brake caliper and a brake disc; the brake disc is mounted on the electric vehicle, characterized in that: It also includes a fender arranged on the brake caliper, the fender including a base and an arc portion, the base is provided with a first screw hole; the upper end of the brake caliper is provided with a second screw hole corresponding to the first screw hole; the fender and the brake caliper are detachably connected by bolts passing through the first screw hole and the second screw hole; the arc portion is used to shield the contact area between the brake disc and the brake caliper.

2. The electric vehicle disc brake structure according to claim 1, characterized in that: The top end of the arc portion is not lower than the top end of the brake disc.

3. The electric vehicle disc brake structure according to claim 1, characterized in that: The fender is made of plastic.

4. The electric vehicle disc brake structure according to claim 1, characterized in that: The left portion of the brake disc is located in the brake caliper.

5. The electric vehicle disc brake structure according to claim 1, characterized in that: It also includes a connecting piece, the brake caliper is arranged at one end of the connecting piece; a third screw hole is provided at one end of the connecting piece; a fourth screw hole corresponding to the third screw hole is provided at one end of the brake caliper; the connecting piece and the brake caliper are detachably connected by bolts passing through the third screw hole and the fourth screw hole.

6. The electric vehicle disc brake structure according to claim 5, characterized in that: A boss is provided on the inner side of the connecting piece; the boss is provided with a through hole for fixing the connecting piece on the electric vehicle; and the brake disc is located on the inner side of the connecting piece.

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