Anti-lock hydraulic brake structure for electric vehicle

Abstract

The application discloses an anti-lock hydraulic brake structure for an electric vehicle, which comprises a mounting outer cylinder arranged on an oil outlet of a brake caliper, an inner cylinder fixedly arranged in the mounting outer cylinder, a metal moving rod movably arranged in the inner cylinder, a piston sleeve fixedly arranged on the outer side wall of the metal moving rod, a contact component arranged in the inner cylinder, and a driving component arranged on the inner cylinder; the metal moving rod and the piston sleeve are arranged, the metal moving rod and the piston sleeve reciprocate at the moment of braking, the brake oil path pressure in the brake caliper is adjusted, the two brake pads are controlled to approach and move away, the two brake pads are prevented from locking the wheels at one time, and the use safety is affected.

Description

Technical Field

[0001] This invention relates to the field of hydraulic braking technology, and in particular to an anti-lock hydraulic braking structure for electric vehicles. Background Technology

[0002] When an electric vehicle brakes to slow down, it does so by bringing two brake pads on the brake caliper closer together. However, when the pressure in the brake fluid lines inside the brake caliper continues to increase, it will push the two brake pads closer together, continuously clamping the brake disc, which can easily lead to wheel lock-up and affect safety. Summary of the Invention

[0003] The purpose of this invention is to solve the problems existing in the prior art and to propose an anti-lock hydraulic braking structure for electric vehicles.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions:

[0005] An anti-lock hydraulic braking structure for electric vehicles includes an outer mounting cylinder disposed on the oil outlet of the brake caliper, an inner cylinder fixedly and through the outer mounting cylinder, a metal moving rod movably disposed within the inner cylinder, a piston sleeve fixedly sleeved on the outer side wall of the metal moving rod, an abutment component disposed within the inner cylinder, and a drive component disposed on the inner cylinder.

[0006] As a further technical solution of the present invention, the abutting component includes an abutting spring movably sleeved on the outer wall of the metal moving rod, and the two ends of the abutting spring are respectively fixedly connected to the piston sleeve and the inner wall of the inner cylinder.

[0007] As a further technical solution of the present invention, the driving component includes a receiving element fixed on the inner wall of the outer cylinder, a metal moving rod that moves through the inner cylinder, and a triggering element fixed at the end of the metal moving rod.

[0008] As a further technical solution of the present invention, a metal coil is fixed on the outer wall of the inner tube.

[0009] As a further technical solution of the present invention, a movable metal ring is fixedly sleeved on the outer wall of the metal moving rod, and a fixed metal ring is fixedly sleeved on the outer wall of the inner tube.

[0010] As a further technical solution of the present invention, both the metal moving rod and the piston sleeve movably pass through the oil outlet of the brake caliper.

[0011] As a further technical solution of the present invention, a threaded sleeve for use with the brake caliper is fixed on one side of the mounting outer cylinder, and a threaded groove is provided on the side wall of the brake caliper, and the threaded groove is threadedly connected to the threaded sleeve.

[0012] The beneficial effects of this invention are:

[0013] 1. During braking, the piston sleeve, carrying the metal moving rod, approaches the inner cylinder, causing the metal moving rod to bring the trigger element closer to the receiver element. At the instant the trigger element and receiver element are activated, the metal coil is energized. The metal coil and the metal moving rod work together to form an electromagnet. At this moment, the metal moving rod and the movable metal ring are magnetic. The movable metal ring then carries the metal moving rod away from the inner cylinder, pushing the piston sleeve back to its initial position. At this instant, the pressure in the brake fluid line increases again, causing the two brake pads to move closer together again, slowing down the wheels. At this instant, the trigger element and receiver element separate, the metal coil is de-energized, and the metal moving rod and piston sleeve, under the pressure of the brake fluid, push them closer to the inner cylinder again, causing the trigger element to move closer to the receiver element again. This process repeats, achieving the anti-lock braking effect during braking.

[0014] 2. The combination of the threaded sleeve and the threaded groove makes it easy to install and fix the outer sleeve to the side wall of the brake caliper, and it is easy to disassemble and assemble. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a schematic diagram showing the connection between the mounting outer cylinder and the threaded sleeve of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of the mounting outer cylinder of the present invention;

[0018] Figure 4 This is a schematic diagram of the internal structure of the built-in cylinder of the present invention.

[0019] In the diagram: 1. Brake caliper; 2. Mounting outer cylinder; 3. Inner cylinder; 4. Metal moving rod; 5. Piston sleeve; 6. Contact spring; 7. Receiving component; 8. Triggering component; 9. Metal coil; 10. Movable metal ring; 11. Fixed metal ring; 12. Threaded sleeve. Detailed Implementation

[0020] To further illustrate the technical means and effects of the present invention in order to achieve the intended purpose, the following detailed description of the specific implementation methods, structures, features and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0021] Reference Figures 1-4An anti-lock braking hydraulic braking structure for electric vehicles includes an outer mounting cylinder 2 installed on the oil outlet of a brake caliper 1, an inner cylinder 3 fixedly and through the outer mounting cylinder 2, a metal moving rod 4 movably installed inside the inner cylinder 3, a piston sleeve 5 fixedly sleeved on the outer wall of the metal moving rod 4, the piston sleeve 5 guides the movement of the metal moving rod 4 and prevents brake fluid leakage, an abutment component is installed inside the inner cylinder 3, and a drive component is installed on the inner cylinder 3.

[0022] In the initial state, due to the relatively long length of the metal moving rod 4, the metal moving rod 4 extends through the oil outlet pipe of the brake caliper 1. In order to cooperate with the metal coil 9, the piston sleeve 5 is also located in the oil outlet pipe of the brake caliper 1 in the initial state. At this time, there is no brake fluid in the inner cylinder 3.

[0023] The contact assembly includes a contact spring 6 movably sleeved on the outer wall of the metal moving rod 4. The two ends of the contact spring 6 are fixedly connected to the inner walls of the piston sleeve 5 and the inner cylinder 3, respectively. When braking, the pressure in the oil circuit of the brake caliper 1 increases. At this time, the brake pads on the brake caliper 1 move closer to each other to decelerate the wheel. The pressure in the oil circuit of the brake caliper 1 continues to increase. During this process, the piston sleeve 5 is subjected to the pressure of the oil circuit and squeezes the contact spring 6. During this process, the piston sleeve 5 moves closer to the inner cylinder 3. When the piston sleeve 5 enters the inner cylinder 3, since the inner cylinder 3 is connected to the oil outlet of the brake caliper 1, the space in the oil circuit increases. At this time, the pressure in the oil circuit decreases. At this instant, the two brake pads move away from each other to prevent the two brake pads from locking the wheel and affecting the safety of use.

[0024] The drive assembly includes a receiving element 7 fixed on the inner wall of the outer cylinder 2, which is electrically connected to an external power supply line. A metal moving rod 4 movably passes through the inner cylinder 3, and a triggering element 8 is fixed at the end of the metal moving rod 4. The triggering element 8 is electrically connected to an external power supply line. A metal coil 9 is fixed on the outer wall of the inner cylinder 3 and is electrically connected to the receiving element 7. A movable metal ring 10 is fixedly sleeved on the outer wall of the metal moving rod 4, and a fixed metal ring 11 is fixedly sleeved on the outer wall of the inner cylinder 3. The receiving element 7 and the triggering element 8 work together to control the energization and de-energization of the metal coil 9.

[0025] During braking, the piston sleeve 5, carrying the metal moving rod 4, approaches the inner cylinder 3, causing the metal moving rod 4 to bring the trigger element 8 closer to the receiving element 7. At the instant the trigger element 8 and the receiving element 7 are in contact, the metal coil 9 is energized. The metal coil 9 and the metal moving rod 4 work together to form an electromagnet. At this time, the metal moving rod 4 and the movable metal ring 10 are magnetic. The movable metal ring 10 carries the metal moving rod 4 away from the inner cylinder 3, thus pushing the piston sleeve 5 back to its initial position. At this instant, the pressure in the brake fluid pipeline increases again, causing the two brake pads to approach each other again, slowing down the wheels. At this instant, the trigger element 8 and the receiving element 7 separate, the metal coil 9 is de-energized, and the metal moving rod 4 and the piston sleeve 5, under the pressure of the brake fluid, are pushed closer to the inner cylinder 3 again, causing the trigger element 8 to approach the receiving element 7 again. This process repeats, achieving the anti-lock braking effect during braking.

[0026] Both the metal moving rod 4 and the piston sleeve 5 movably pass through the oil outlet of the brake caliper 1. A threaded sleeve 12 that mates with the brake caliper 1 is fixed on one side of the mounting outer cylinder 2. A threaded groove is provided on the side wall of the brake caliper 1. The threaded groove is threadedly connected to the threaded sleeve 12. Through the cooperation between the threaded sleeve 12 and the threaded groove, the mounting outer cylinder 2 can be easily installed and fixed to the side wall of the brake caliper 1, making disassembly and assembly convenient.

[0027] In use, the outer cylinder 2 is installed and fixed to the side wall of the brake caliper 1. At this time, the metal moving rod 4 and the piston sleeve 5 are inserted into the oil outlet of the brake caliper 1, and the inner cylinder 3 is connected to the oil outlet. When braking, the pressure in the oil circuit of the brake caliper 1 increases. At this time, the brake pads on the brake caliper 1 move closer to each other to decelerate the wheel. The pressure in the oil circuit of the brake caliper 1 continues to increase. During this process, the piston sleeve 5 is subjected to the pressure of the oil circuit and squeezes the spring 6. During this process, the piston sleeve 5 moves closer to the inner cylinder 3. When the piston sleeve 5 enters the inner cylinder 3, since the inner cylinder 3 is connected to the oil outlet of the brake caliper 1, the space in the oil circuit increases. At this time, the pressure in the oil circuit decreases. At this moment, the two brake pads move away from each other to prevent the two brake pads from locking the wheel and affecting the safety of use.

[0028] During braking, the piston sleeve 5, carrying the metal moving rod 4, approaches the inner cylinder 3, causing the metal moving rod 4 to bring the trigger element 8 closer to the receiving element 7. At the instant the trigger element 8 and the receiving element 7 are in contact, the metal coil 9 is energized. The metal coil 9 and the metal moving rod 4 work together to form an electromagnet. At this time, the metal moving rod 4 and the movable metal ring 10 are magnetic. The movable metal ring 10 carries the metal moving rod 4 away from the inner cylinder 3, thus pushing the piston sleeve 5 back to its initial position. At this instant, the pressure in the brake fluid pipeline increases again, causing the two brake pads to approach each other again, slowing down the wheels. At this instant, the trigger element 8 and the receiving element 7 separate, the metal coil 9 is de-energized, and the metal moving rod 4 and the piston sleeve 5, under the pressure of the brake fluid, are pushed closer to the inner cylinder 3 again, causing the trigger element 8 to approach the receiving element 7 again. This process repeats, achieving the anti-lock braking effect during braking.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An anti-lock hydraulic braking structure for electric vehicles, comprising an outer mounting cylinder (2) disposed on the oil outlet of a brake caliper (1), characterized in that, An inner cylinder (3) is fixedly installed inside the outer cylinder (2). A metal moving rod (4) is movably installed inside the inner cylinder (3). A piston sleeve (5) is fixedly fitted on the outer wall of the metal moving rod (4). An abutment assembly is installed inside the inner cylinder (3), and a drive assembly is installed on the inner cylinder (3). Both the metal moving rod (4) and the piston sleeve (5) movably pass through the oil outlet of the brake caliper (1). The abutment assembly includes an abutment spring (6) movably fitted on the outer wall of the metal moving rod (4). The two sides of the abutment spring (6) are... The ends are respectively fixedly connected to the inner walls of the piston sleeve (5) and the inner wall of the inner cylinder (3); the drive assembly includes a receiving element (7) fixed on the inner wall of the mounting outer cylinder (2), a metal moving rod (4) movably passing through the inner cylinder (3), and a triggering element (8) fixed at the end of the metal moving rod (4); a metal coil (9) is fixed on the outer wall of the inner cylinder (3); a movable metal ring (10) is fixedly sleeved on the outer wall of the metal moving rod (4), and a fixed metal ring (11) is fixedly sleeved on the outer wall of the inner cylinder (3); During braking, the piston sleeve (5) moves the metal moving rod (4) closer to the inner cylinder (3), causing the metal moving rod (4) to move the trigger element (8) closer to the receiving element (7). At the instant the trigger element (8) contacts the receiving element (7), the metal coil (9) is energized. The metal coil (9) and the metal moving rod (4) work together to form an electromagnet. The metal moving rod (4) and the movable metal ring (10) are magnetic. The movable metal ring (10) moves the metal moving rod (4) away from the inner cylinder (3), thereby pushing the piston sleeve (5) back to its initial position. At this instant, the pressure in the brake oil pipeline increases again, causing the two brake pads to move closer to each other again, slowing down the wheels. At this instant, the trigger element (8) and the receiving element (7) separate, the metal coil (9) is de-energized, and the metal moving rod (4) and the piston sleeve (5) are pushed closer to the inner cylinder (3) again under the pressure of the brake oil, causing the trigger element (8) to move closer to the receiving element (7) again. This process repeats, achieving the effect of preventing wheel lock-up during braking. A threaded sleeve (12) for use with the brake caliper (1) is fixed on one side of the mounting outer cylinder (2). A threaded groove is provided on the side wall of the brake caliper (1), and the threaded groove is threadedly connected to the threaded sleeve (12).

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