Brake device and automobile

Abstract

The utility model relates to the technical field of automobile braking, and discloses a brake device and an automobile, the brake device comprises a caliper seat, calipers arranged on the caliper seat, and a motor set for pushing the calipers, the calipers comprise a first caliper and a second caliper, the motor set comprises at least one motor, and the motor is connected with the caliper seat. The motor set is configured to drive the second caliper part to slide in the direction close to or away from the first caliper part so that the caliper can be switched between the loosening state and the clamping state. According to the brake device, at least one driving motor is used for driving the calipers to clamp and loosen, so that braking of an automobile is achieved, brake-by-wire braking is conducted through the high-speed motor, the braking stability of a braking system is greatly improved, and the automobile is prevented from stalling and being out of control; in addition, the motor drives the calipers to conduct braking in a linear actuating mode, and the braking efficiency is high and stable.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive braking, and specifically relates to a braking device and an automobile. Background Art

[0002] An automotive braking system is a device that realizes vehicle braking through braking force. In related technologies, a single power source is adopted for an automotive braking device. For example, hydraulics is used to realize the clamping and loosening of a brake caliper, thereby realizing vehicle braking. However, in related technologies, the hydraulic braking has poor responsiveness and poor braking stability, which easily leads to vehicle stall and out of control. Summary of the Utility Model

[0003] Aiming at the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a braking device and an automobile, aiming to solve the technical problem of vehicle stall and out of control caused by poor braking stability in the prior art.

[0004] To solve the above technical problem, the utility model provides a braking device, including a motor drive assembly. The motor drive assembly includes a caliper seat and,

[0005] a caliper. The caliper is arranged on the caliper seat and includes a first caliper part and a second caliper part. The second caliper part is slidably connected to the caliper seat and can slide on the caliper seat in a direction close to or away from the first caliper part;

[0006] a motor group. The motor group includes at least one motor, and the motor group is configured to drive the second caliper part to slide in a direction close to or away from the first caliper part, so that the caliper switches between a released state and a clamped state;

[0007] The motor includes a motor main body, a motor output shaft, a screw rod connected to the motor output shaft, a first pushing member threadedly connected to the screw rod, and a second pushing member wrapped around the outer periphery of the first pushing member. The second pushing member is spaced from the second caliper part;

[0008] Wherein, at least one of the contact surfaces where the first pushing member and the second pushing member contact each other is an inclined surface.

[0009] In a possible implementation manner, a sliding column is arranged on the caliper seat, the second caliper part is sleeved on the sliding column, and the first caliper part is fixedly arranged at the end of the caliper seat.

[0010] In a possible implementation manner, brake pads are respectively arranged on the opposite end faces of the first caliper part and the second caliper part.

[0011] In a possible implementation, the motor set includes two motors, the two motors are arranged side by side along the length direction of the second caliper part, and the two motors are respectively arranged at two end parts of the length direction of the second caliper part.

[0012] In a possible implementation, the first pushing member is threadedly connected and sleeved outside the screw rod, and / or, the second pushing member is fixedly connected to the first pushing member and sleeved outside the first pushing member.

[0013] In a possible implementation, when the motor rotates in a first direction, it drives the screw rod to rotate, so that the first pushing member and the second pushing member push the second caliper part to slide in a direction close to the first caliper part, and when the motor rotates in a second direction, it drives the screw rod to rotate, so that the first pushing member and the second pushing member pull the second caliper part to slide in a direction away from the first caliper part, wherein one of the first direction and the second direction is the forward rotation direction, and the other direction is the reverse rotation direction.

[0014] In a possible implementation, the contact surface between the first pushing member and the second pushing member is an arc surface, and the contact surface between the second pushing member and the first pushing member is an inclined surface.

[0015] In a possible implementation, the spacing distance between the second pushing member and the second caliper part is less than or equal to 2 mm.

[0016] To solve the above technical problems, the present utility model further provides an automobile, the automobile includes the above brake device and a control device, and the control device is used to control the forward rotation or reverse rotation of the motor.

[0017] Compared with the prior art, the beneficial effects of the present utility model are: the brake device of the present application drives the caliper to clamp and release through at least one driving motor, so as to realize the braking of the automobile. The wire control braking is carried out through a high-speed motor, which greatly improves the braking stability of the braking system and prevents the vehicle from stalling and losing control; in addition, the motor adopts a linear actuation method to drive the caliper for braking, and the braking efficiency is high and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the brake device in an embodiment of the present application;

[0019] Figure 2 It is a three-dimensional schematic diagram of a single-motor brake device in an embodiment of the present application;

[0020] Figure 3 It is a three-dimensional schematic diagram of a double-motor brake device in another embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work belong to the scope of protection of the present utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can also be the communication inside two elements. It can be a wireless connection or a wired connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] Please refer to the attached Figures 1-3 , the embodiment of the present utility model provides a braking device, including a motor drive assembly, and the motor drive assembly includes a caliper seat 100 and,

[0025] a caliper 200, the caliper 200 is arranged on the caliper seat 100, and includes a first caliper part 210 and a second caliper part 220. The second caliper part 220 is slidably connected to the caliper seat 100 and can slide on the caliper seat 100 in a direction close to or away from the first caliper part 210;

[0026] a motor group 300, the motor group 300 includes at least one motor 310, 320, and the motor group 300 is configured to drive the second caliper part 220 to slide in a direction close to or away from the first caliper part 210, so that the caliper 200 can be switched between a released state and a clamped state;

[0027] The motors 310 and 320 include a motor body 330, a motor output shaft 340, a screw 350 connected to the motor output shaft 340, a first pusher 360 threadedly connected to the screw 350, and a second pusher 370 disposed around the outer periphery of the first pusher 360. The second pusher 370 is spaced apart from the second caliper portion 220.

[0028] Wherein, at least one of the contact surfaces of the first pusher 360 and the second pusher 370 in contact with each other is an inclined surface. Specifically, the contact surface of the first pusher 360 and the second pusher 370 is an arc surface, and the contact surface of the second pusher 370 and the first pusher 360 is an inclined surface. In this way, when the inclined surface contacts the arc surface, the wear is small, which can improve the stability of the contact between the first pusher 360 and the second pusher 370, and further improve the stability of the braking.

[0029] In one embodiment, a sliding column 110 is provided on the caliper seat 100. The second caliper portion 220 is sleeved on the sliding column 110, and the first caliper portion 210 is fixedly provided at the end of the caliper seat (100). Brake pads 230 are respectively provided on the opposite end faces of the first caliper portion 210 and the second caliper portion 220.

[0030] As Figure 3 shown, the motor group 300 includes two motors 310 and 320. The two motors 310 and 320 are arranged side by side along the length direction of the second caliper portion 220, and the two motors 310 and 320 are respectively disposed at both ends of the length direction of the second caliper portion 220. The redundant design of the two motors can prevent the braking from failing when one of the motors fails, and further improve the stability of the braking.

[0031] In one embodiment, the first pusher 360 is threadedly connected and sleeved outside the screw 350, and / or the second pusher 370 is fixedly connected to the first pusher 360 and sleeved outside the first pusher 360.

[0032] In one embodiment, when the motors 310 and 320 rotate in the first direction, the screw 350 is driven to rotate, so that the first pusher 360 and the second pusher 370 push the second caliper portion 220 to slide in the direction close to the first caliper portion 210. When the motors 310 and 320 rotate in the second direction, the screw 350 is driven to rotate, so that the first pusher 360 and the second pusher 370 pull the second caliper portion 220 to slide in the direction away from the first caliper portion 210, wherein one of the first direction and the second direction is the forward rotation direction, and the other direction is the reverse rotation direction.

[0033] In one embodiment, the spacing distance between the second pushing member 370 and the second caliper portion 220 is less than or equal to 2 mm. The second pushing member 370 and the second caliper portion 220 are spaced apart, which can be produced separately to reduce the manufacturing cost. And by setting a smaller spacing distance, the braking time can be reduced, thereby further improving the braking efficiency.

[0034] Specifically, the first pushing member 360 is threadedly connected and sleeved outside the screw rod 350, and the second pushing member 370 is fixedly connected to the first pushing member 360 and sleeved outside the first pushing member 360. Thus, when the motors 310, 320 rotate forward (or backward), the screw rod 350 can be driven to rotate, so that the first pushing member 360 and the second pushing member 370 push the second caliper portion 220 to slide in the direction close to the first caliper portion 210, thereby realizing braking; when the motors 310, 320 rotate backward (or forward), the screw rod 350 can be driven to rotate, so that the first pushing member 360 and the second pushing member 370 pull the second caliper portion 220 to slide in the direction away from the first caliper portion 210, thereby realizing brake release.

[0035] The embodiment of the present application further provides an automobile, which includes the above-mentioned braking device and a control device. The control device is used to control the forward or reverse rotation of the motor, so as to realize the braking control of the motor through a control button. The operation is simple and convenient, and the response speed is fast. When needed, the braking of the braking device can be realized through a wire control switch.

[0036] Based on this, the braking device of the present application drives the caliper to clamp and release through at least one driving motor, thereby realizing the braking of the automobile. The wire control braking is carried out through a high-speed motor, which greatly improves the braking stability of the braking system and prevents the vehicle from stalling and losing control. In addition, the motor adopts a linear actuation method to drive the caliper for braking, and the braking efficiency is high and stable.

[0037] Obviously, the above is only the preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A brake device, characterized in that: It comprises a motor drive assembly, the motor drive assembly comprising a caliper seat (100) and, A caliper (200), the caliper (200) being arranged on the caliper seat (100), comprising a first caliper portion (210) and a second caliper portion (220), the second caliper portion (220) being slidably connected to the caliper seat (100) and being able to slide on the caliper seat (100) in a direction approaching or moving away from the first caliper portion (210); A motor group (300), the motor group (300) comprising at least one motor (310, 320), the motor group (300) being configured to drive the second caliper part (220) to slide in a direction approaching or away from the first caliper part (210), so that the caliper (200) switches between a loosened state and a clamped state; The motor (310, 320) comprises a motor body (330), a motor output shaft (340), a screw rod (350) connected to the motor output shaft (340), a first pusher (360) threadedly connected to the screw rod (350), and a second pusher (370) disposed around the outer periphery of the first pusher (360), wherein the second pusher (370) is spaced apart from the second caliper portion (220); Wherein, at least one of the contact surfaces between the first pushing member (360) and the second pushing member (370) is an inclined surface.

2. The brake device according to claim 1, characterized in that: A slide column (110) is provided on the caliper seat (100), the second caliper portion (220) is sleeved on the slide column (110), and the first caliper portion (210) is fixedly arranged on the end of the caliper seat (100).

3. The brake device according to claim 2, characterized in that: Brake pads (230) are respectively provided on the opposing end surfaces of the first caliper portion (210) and the second caliper portion (220).

4. The brake device according to claim 1, characterized in that: The motor group (300) comprises two motors (310, 320), the two motors (310, 320) are arranged side by side along the length direction of the second caliper part (220), and the two motors (310, 320) are respectively arranged at two ends of the second caliper part (220) in the length direction.

5. The brake device according to claim 1, characterized in that: The first pushing member (360) is threadedly connected and sleeved on the outside of the screw rod (350), and / or the second pushing member (370) is fixedly connected to the first pushing member (360) and sleeved on the outside of the first pushing member (360).

6. The brake device according to claim 1, characterized in that: When the motor (310, 320) rotates in a first direction, it drives the screw rod (350) to rotate, so that the first pushing member (360) and the second pushing member (370) push the second caliper part (220) to slide in a direction close to the first caliper part (210); when the motor (310, 320) rotates in a second direction, it drives the screw rod (350) to rotate, so that the first pushing member (360) and the second pushing member (370) pull the second caliper part (220) to slide in a direction away from the first caliper part (210), wherein one of the first direction and the second direction is a forward rotation direction, and the other direction is a reverse rotation direction.

7. The brake device according to claim 1, characterized in that: The contact surface between the first pushing member (360) and the second pushing member (370) is an arc surface, and the contact surface between the second pushing member (370) and the first pushing member (360) is an inclined surface.

8. The brake device according to claim 1, characterized in that: The spacing distance between the second pushing member (370) and the second caliper portion (220) is less than or equal to 2 mm.

9. A car, characterized in that: The automobile comprises a brake device as claimed in any one of claims 1 to 8 and a control device, wherein the control device is used to control the motor (310, 320) to rotate forward or reverse.

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