Electric vehicle braking system

Abstract

The present invention belongs to the technical field of electric vehicle braking, specifically a braking system for an electric vehicle, including a wheel hub, an iron plate as a braking accessory connected to the inner side of the wheel hub, a connecting component including a bracket connected to a chassis, the bracket being arranged corresponding to the inner side of the wheel hub, a screw being movably connected to the bracket, a spring being sleeved corresponding to the outer side of the bracket at the front end of the screw, a lever being rotatably connected to the rear end of the screw, a tension spring being connected to the front end of the lever, and the other end of the tension spring being connected to the top of the bracket, a magnetic attraction component including a foot switch installed on the chassis, the foot switch being connected to a losing electromagnet through wiring, the losing electromagnet being connected to the front end of the screw, the foot switch being energized when stepped on to a certain position, the switch falling back when not stepped on, and starting to power off and brake, the on and off states of the losing electromagnet being controlled by the foot switch, cooperating with the magnetic attraction of the iron sheet to realize the braking effect, and cooperating with the original braking system of the electric vehicle to form a double braking action to meet the emergency braking action.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle braking, in particular to an electric vehicle braking system. Background Art

[0002] As the resource crisis becomes increasingly serious, new energy vehicles such as hybrid vehicles and electric vehicles have gradually become a research hotspot. At the same time, new requirements have been put forward for the braking systems of hybrid vehicles and electric vehicles. In order to achieve good coordination with the regenerative braking system of hybrid vehicles and electric vehicles themselves, and to enable the regenerative braking system to recover as much braking energy as possible on the basis of braking safety, the dependence on the engine vacuum should be reduced or eliminated first, and secondly, the braking deficiency should be compensated quickly and accurately. At the same time, during the braking process, due to inertia, the electric vehicle will slide for a period of time after the power is cut off, and it will not achieve the effect of immediate braking in an emergency. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] Therefore, the purpose of the present invention is to provide an electric vehicle braking system, which can control the on and off state of the electromagnet through a foot switch, cooperate with the magnetic attraction of the iron plate to achieve the braking effect, and cooperate with the original braking system of the electric vehicle to form a double braking action to meet the emergency braking action.

[0005] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: an electric vehicle braking system, comprising:

[0006] The wheel hub has an iron plate as a brake accessory connected to the inner side of the wheel hub;

[0007] The connecting component is connected to the chassis, including a bracket connected to the chassis, the bracket is arranged corresponding to the inner side of the wheel hub, a screw is movably connected to the bracket, a spring is sleeved on the front end of the screw corresponding to the outer side of the bracket, and the other end of the spring is connected to the electromagnet and drives the electromagnet to move;

[0008] The rear end of the screw rod is rotatably connected to a lever, the front end of the lever rod is connected to a tension spring, and the other end of the tension spring is connected to the top of the bracket;

[0009] The magnetic attraction component is connected to the chassis, including a foot switch installed on the chassis. The foot switch is connected to the tripping electromagnet through wiring. The tripping electromagnet is connected to the front end of the screw. The foot switch is powered on when it is stepped on to a certain position. When it is not stepped on, the switch falls back and the power is cut off and the brake is started.

[0010] As a preferred solution of the electric vehicle braking system described in the present invention, the wheel hub is connected to the chassis through a wheel axle.

[0011] As a preferred solution of the electric vehicle braking system described in the present invention, when the foot switch is stepped on, the power supply of the electromagnet is turned on, the electromagnet is automatically separated from the iron plate on the wheel hub, and the braking effect is lost.

[0012] As a preferred solution of the electric vehicle braking system described in the present invention, when the power supply is out of power, an external force moves the lever, driving the screw rod and the electromagnet to move, forcing the electromagnet and the iron plate to separate, thereby losing the braking effect.

[0013] As a preferred solution of the electric vehicle braking system described in the present invention, when the braking effect is forcibly lost due to external force, once the power is turned on, the spring automatically pulls back the lever to continue to achieve the power-off braking effect.

[0014] Compared with existing technologies:

[0015] 1. When the foot switch is in the original position, the electromagnet is in the power-off state, and the electromagnet attracts the iron plate to achieve the braking effect, which cooperates with the original braking system of the electric vehicle to form a double braking action to meet the emergency braking action;

[0016] 2. Step on the foot switch, the power of the electromagnet is turned on, the electromagnet is automatically separated from the iron plate on the wheel hub, and the braking effect is lost;

[0017] 3. When the power is off, external force pushes the lever, driving the screw and the electromagnet to move, forcing the electromagnet and the iron plate to separate, and losing the braking effect. When the external force forces the braking effect to be lost, once the power is on, the spring automatically pulls back the lever to continue to achieve the power-off braking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in combination with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of part A of the present invention;

[0021] Figure 3 It is a side view structural schematic diagram of the present invention;

[0022] Figure 4 It is a schematic diagram of the top view structure of the present invention;

[0023] Figure 5 For the present invention Figure 2 Schematic diagram of some structures.

[0024] In the figure: 100 wheel hub, 110 iron plate, 120 wheel axle, 200 connecting component, 210 bracket, 220 screw rod, 221 spring, 230 lever, 231 positioning bolt, 240 tension spring, 300 magnetic component, 310 foot switch, 311 wiring, 320 electromagnet. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0028] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] The present invention provides an electric vehicle braking system, see Figure 1-5 , including a hub 100, a connecting component 200 and a magnetic attraction component 300;

[0030] Please continue reading Figure 1 , Figure 3 and Figure 4 , the inner side of the wheel hub 100 is connected to an iron plate 110 as a brake accessory;

[0031] Please continue reading Figure 2-5 The connecting component 200 is connected to the chassis, and includes a bracket 210 connected to the chassis. The bracket 210 is arranged corresponding to the inner side of the wheel hub 100. A screw rod 220 is movably connected to the bracket 210. A spring 221 is sleeved on the front end of the screw rod 220 corresponding to the outer side of the bracket 210. The other end of the spring 221 is connected to the electromagnet 320 and drives the electromagnet 320 to move.

[0032] The rear end of the screw rod 220 is rotatably connected to a lever 230, which is screwed to the rear end of the screw rod 220 through a positioning bolt 231. The lever 230 rotates along the axis of the positioning bolt 231. The front end of the lever 230 is connected to a tension spring 240, and the other end of the tension spring 240 is connected to the top of the bracket 210.

[0033] Please continue reading Figure 1 and Figure 5 The magnetic attraction component 300 is placed on the chassis, including a foot switch 310 installed on the chassis. The foot switch 310 is connected to the electromagnet 320 through a connection 311. The electromagnet 320 is connected to the front end of the screw 220. When the foot switch 310 is stepped on to a certain position, it is energized. When it is not stepped on, the switch falls back and the power is cut off and the brake is started.

[0034] Embodiment 1: When the foot switch 310 is in the original position, the electromagnet 320 is in the power-off state, and the electromagnet 320 attracts the iron plate 110 to achieve the braking effect;

[0035] Embodiment 2: When the foot switch 310 is stepped on, the power of the electromagnet 320 is turned on, and the electromagnet 320 is automatically separated from the iron plate 110 on the wheel hub 100, and the braking effect is lost;

[0036] Embodiment 3: When the power supply is out of power, an external force moves the lever 230, driving the screw 220 and the electromagnet 320 to move, forcing the electromagnet 320 and the iron plate 110 to separate, and losing the braking effect. When the external force forces the braking effect to be lost, once the power is turned on, the spring 221 automatically pulls back the lever 230 to continue to achieve the power-off braking effect.

[0037] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electric vehicle braking system, characterized in that: include: A wheel hub (100), an iron plate (110) serving as a brake accessory being connected to the inner side of the wheel hub (100); The connecting component (200) is connected to the chassis and comprises a bracket (210) connected to the chassis. The bracket (210) is arranged corresponding to the inner side of the wheel hub (100). A screw rod (220) is movably connected to the bracket (210). A spring (221) is sleeved at the front end of the screw rod (220) corresponding to the outer side of the bracket (210). The other end of the spring (221) is connected to a loss electromagnet (320) and drives the loss electromagnet (320) to move. The rear end of the screw rod (220) is rotatably connected to a lever (230), the front end of the lever rod (230) is connected to a tension spring (240), the other end of the tension spring (240) is connected to the top of the bracket (210), the lever rod (230) is screwed to the rear end of the screw rod (220) through a positioning bolt (231), and the lever rod (230) rotates along the axis of the positioning bolt (231) as the center of the circle; The magnetic attraction component (300) is connected to the chassis and comprises a foot switch (310) installed on the chassis. The foot switch (310) is connected to a tripping electromagnet (320) via a wiring (311). The tripping electromagnet (320) is connected to the front end of the screw rod (220). When the foot switch (310) is stepped on to a certain position, power is supplied. When the foot switch (310) is not stepped on, the switch falls back and power is cut off and braking begins.

2. An electric vehicle braking system according to claim 1, characterized in that: The wheel hub (100) is connected to the chassis via a wheel axle (120).

3. An electric vehicle braking system according to claim 2, characterized in that: When the foot switch (310) is in the original position, the electromagnet (320) is in a power-off state, and the electromagnet (320) attracts the iron plate (110) to achieve a braking effect.

4. The electric vehicle braking system according to claim 3, characterized in that: When the foot switch (310) is stepped on, the power supply of the electromagnet (320) is turned on, and the electromagnet (320) is automatically separated from the iron plate (110) on the wheel hub (100), thereby losing the braking effect.

5. An electric vehicle braking system according to claim 4, characterized in that: When the power source is out of power, an external force moves the lever (230), driving the screw rod (220) and the electromagnet (320) to move, forcing the electromagnet (320) and the iron plate (110) to separate, thereby losing the braking effect.

6. An electric vehicle braking system according to claim 5, characterized in that: When the braking effect is lost due to external force, once the power is turned on, the spring (221) automatically pulls back the lever (230) to continue to achieve the power-off braking effect.

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