Brake device for vehicle

Abstract

The utility model provides a braking device for a vehicle. The braking device comprises an ejector rod seat, a first-stage spring, a first-stage spring seat, a spring connecting rod, a second-stage spring and an elastic supporting body, through the action of the first-stage spring, the second-stage spring and the elastic supporting body, the effect of staged supporting feedback is achieved, and force conduction is facilitated through tight matching of multiple components; the lowest elastic supporting body is of a block-shaped structure and has no compression limit, so that when the pedal reaches the bottommost position, elastic change can still occur, and the feeling that the pedal steps on the bottom is avoided. That is to say, hard-to-hard pressure points cannot appear like metal springs of the same type, and panic caused by the fact that a driver feels that the brake pedal reaches the bottom is prevented. By adopting the arrangement of the sensor spring seat and the small spring, when the pedal is not stepped on, the pressure sensor still has a reading, and a fault does not need to be reported when a signal of the pressure sensor is used, so that the state of the pressure sensor can be known in advance, and the condition that the pressure sensor is damaged but not known is avoided.

Description

Technical Field

[0001] This utility model relates to vehicle braking technology, specifically to a braking device composed of multi-stage springs that simulates foot feel. Background Technology

[0002] The brake pedal is a crucial component of a vehicle's braking system, and its structural design directly impacts vehicle safety and handling. The brake pedal structure primarily includes the pedal body, pedal connecting rod, and spring; furthermore, modern vehicles typically incorporate sensors to detect pedal displacement, providing essential data to the electronic braking system.

[0003] The user brakes via the pedal, and the braking signal provides a counterforce through the pedal connecting rod and spring. During the movement of the pedal connecting rod, a sensor generates an electrical signal. This signal, under the control of the control chip, drives the vehicle to brake through existing components such as the brake caliper and brake fluid. Therefore, the pedal body, pedal connecting rod, and spring are crucial components in the braking system for generating the braking signal. Consequently, the brake pedal design must not only ensure robustness and durability but also provide excellent pedal feedback, enabling the driver to maintain stable vehicle control under various road conditions.

[0004] However, in existing spring settings, there are usually only one or two sets of springs. As a result, when the foot is pressed down, the springs provide insufficient counterforce due to unreasonable structural design. Furthermore, the spring structure is usually unreasonable, leading to instability. On the other hand, when the foot is pressed down to the last stage, the spring is compressed to the bottom, which can easily create the feeling of the foot being pressed all the way down, causing panic among drivers. Utility Model Content

[0005] To address the problems existing in the above-mentioned technologies, this utility model provides a braking device that achieves multi-stage spring structure arrangement to realize multi-stage spring combined force support.

[0006] A braking device for a vehicle includes a push rod seat, a primary spring, a primary spring seat, a spring connecting rod, a secondary spring, and an elastic support body;

[0007] The upper end of the push rod mount is connected to the driving push rod;

[0008] A primary spring is located at the lower end of the push rod seat;

[0009] The primary spring seat is a hollow ring structure, the hollow ring structure has an ear plate, and a portion of the primary spring is located inside the hollow ring structure;

[0010] The spring connecting rod has a base and a fixing post, the fixing post extending from the bottom of the hollow ring structure into the interior of the primary spring;

[0011] A secondary spring is arranged around the outer periphery of the hollow circular ring structure, and the secondary spring is located between the ear plate and the chassis;

[0012] The elastic support is located at the lower end of the chassis.

[0013] Preferably, the device also includes a housing, and the top rod seat, primary spring, primary spring seat, spring connecting rod, secondary spring and elastic support are all disposed within the housing.

[0014] Preferably, the device housing has a notch; a sensor spring seat and a small spring are disposed in the notch, the upper end of the small spring is connected to the sensor spring seat, and a pressure sensor is disposed on the sensor spring seat; the extension piece is disposed on the side of the top rod seat, and the extension piece is connected to the small spring.

[0015] Preferably, the lower end of the small spring is connected to the top rod seat.

[0016] Preferably, a magnetic ring bracket is connected to the side of the top rod seat, and the magnetic ring bracket has a magnetic ring.

[0017] Preferably, it includes a control assembly located on the side of the device housing, the control assembly having a position sensing chip; the position sensing chip is used to sense the displacement position of the magnetic ring.

[0018] Preferably, the top rod seat is slidably disposed at the upper middle part of the device housing, and a first sealing ring is provided between the top rod seat and the device housing.

[0019] Preferably, the device housing has a main body and an end cap, the end cap is located below the main body, an elastic support is provided in the middle receiving portion of the end cap, and a second sealing ring is provided between the end cap and the main body; the pressure sensor is disposed between the sensor spring seat and the main body.

[0020] Preferably, a secondary spring washer is connected to the bottom of the secondary spring;

[0021] Preferably, the lower part of the device housing has a locking part, and the upper end of the secondary spring washer and the end cap are respectively disposed at the locking part. The secondary spring washer is also pressed onto the chassis.

[0022] The beneficial effects of this utility model are:

[0023] 1. Through the combined action of the primary spring, secondary spring, and elastic support, a combined force support feedback is achieved, resulting in more stable and balanced support. Furthermore, the tight cooperation between multiple components facilitates force transmission. The lowest elastic support is a block structure with no compression limit, so it can still elastically change when the pedal is at its lowest position, thus preventing the feeling of the pedal being completely depressed. Unlike similar metal springs, it avoids the hard-on-hard pressure point, preventing panic caused by the driver feeling the brake pedal is at its lowest point.

[0024] 2. By using a sensor spring seat and a small spring, the pressure sensor still has a reading when the pedal is not pressed, so there is no need to report a fault only when the pressure sensor signal is used. This allows us to know the status of the pressure sensor in advance and avoid situations where damage goes unnoticed. Attached Figure Description

[0025] Figure 1 This is an exploded structural diagram of the overall structure of a braking device for a vehicle according to the present invention.

[0026] Figure 2 This is a structural schematic diagram of a cross-sectional view of a braking device for a vehicle according to this utility model;

[0027] Figure 3 This is a partially enlarged schematic diagram of some components of this utility model;

[0028] Figure 4 This is a partially enlarged schematic diagram of some components of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1-Top rod seat; 101-Extension plate;

[0031] 2-Device housing; 201-Main body; 202-Notch; 203-Engaging part; 12-End cap; 13-Second sealing ring;

[0032] 3-First sealing ring; 4-Sensor spring seat; 5-Small spring; 6-First stage spring;

[0033] 7-First stage spring seat; 701-Ear plate;

[0034] 8-Secondary spring; 9-Secondary spring washer; 11-Elastic support;

[0035] 10 - Spring connecting rod; 110 - Chassis; 120 - Fixed column;

[0036] 14-Control assembly; 15-Magnetic ring; 16-Magnetic ring bracket; 17-Pressure sensor. Detailed Implementation

[0037] First embodiment:

[0038] This embodiment of a vehicle braking device includes a push rod seat 1, a primary spring 6, a primary spring seat 7, a spring connecting rod 10, a secondary spring 8, and an elastic support body 11.

[0039] The upper end of the push rod seat 1 is connected to the driving push rod. The user presses the push rod with his foot, which in turn causes the push rod seat 1 to move downward and generate a braking signal.

[0040] A primary spring 6 is disposed at the lower end of the top rod seat 1;

[0041] The primary spring seat 7 is a hollow ring structure, the hollow ring structure has an ear plate 701, and a part of the primary spring 6 is located inside the hollow ring structure;

[0042] The spring connecting rod 10 has a base 110 and a fixing post 120. The fixing post 120 passes through the bottom of the hollow ring structure into the interior of the first-stage spring 6. The spring connecting rod 10 inside the first-stage spring 6 can stabilize the first-stage spring 6 and prevent it from shifting.

[0043] A secondary spring 8 is arranged around the outer periphery of the hollow annular structure, located between the ear plate 701 and the chassis 110. The hollow annular structure allows for the placement of a primary spring 6 and a secondary spring 8 in the inner and outer cavities respectively, making the entire structure very stable and preventing the two sets of springs from deviating. When the primary spring 6 moves downward, it causes the hollow annular structure to move downward, which in turn causes the secondary spring 8 to move downward.

[0044] An elastic support 11 is disposed at the lower end of the chassis 110. The elastic support 11 is a rubber block structure, which is simple to assemble and inexpensive. The elastic support 11 provides the final stage of pedal feel. Because of its block structure, the elastic support 11 can still maintain its elasticity even under great pressure. Therefore, when the user applies pedal pressure, the elastic support 11 can provide unlimited compression in the final stage, thereby generating elastic feedback to the user and avoiding the feeling of the brake pedal being fully depressed.

[0045] Preferably, the device also includes a housing 2, within which the top rod seat 1, primary spring 6, primary spring seat 7, spring connecting rod 10, secondary spring 8, and elastic support 11 are all housed. The housing serves as a carrier for the various components and provides a sealing function.

[0046] like Figure 3 and Figure 4As shown, the device housing 2 has a notch 202; a sensor spring seat 4 and a small spring 5 are disposed in the notch 202, the upper end of the small spring 5 is connected to the sensor spring seat 4, and a pressure sensor 17 is disposed on the sensor spring seat 4; the extension piece 101 is disposed on the side of the top rod seat 1, and the extension piece 101 is connected to the small spring 5.

[0047] Preferably, the device further includes a sensor spring seat 4 and a small spring 5. The upper end of the small spring 5 is connected to the sensor spring seat 4, and the sensor spring seat 4 has a pressure sensor 17. The sensor spring seat 4 transmits the force of the small spring to the end face of the pressure sensor 17. When the small spring 5 moves downward, it causes the sensor spring seat 4 to move downward, thereby causing a change in the pressure on the pressure sensor 17, which in turn generates a signal change.

[0048] The lower end of the small spring 5 is connected to the top rod seat 1. When the brake is not applied, in the assembled state of the component and spring, the small spring 5 will generate a pressure signal to the pressure sensor 17. Therefore, the pressure sensor 17 will always have pressure, which can detect whether the sensor is faulty. When no pressure is detected, a warning can be issued.

[0049] In the initial state, the small spring 5 supports the sensor spring seat 4, that is, the small spring 5 holds the sensor spring seat 4 and the pressure sensor 17 against the main body 201 for positional stability. When the extension piece 101 provided on the side of the top rod seat 1 moves downward, it drives the small spring 5 to move downward, which in turn drives the sensor spring seat 4 to move downward, thereby causing a change in the pressure on the sensing end face of the pressure sensor 17, generating an electrical signal for displacement sensing.

[0050] Preferably, a magnetic ring bracket 16 is connected to the side of the top rod seat 1, and the magnetic ring bracket 16 has a magnetic ring 15 to provide magnetic force.

[0051] Preferably, the device includes a control assembly 14 located on the side of the housing 2. The control assembly 14 has a position sensing chip, which functions as both a signal sensing and transmission chip. The position sensing chip is used to sense the displacement position of the magnetic ring 15. During movement, the magnetic ring generates a sensing signal, which is then collected by the position sensing chip to control subsequent vehicle braking. The movement and sensing of the magnetic ring's position are prior art and will not be elaborated upon here. The sensing of the displacement signal generated by the magnetic ring's movement is also prior art and will not be elaborated upon here.

[0052] The working process of this device:

[0053] By connecting any mobile end to the top rod seat 1, the top rod seat 1 moves, which drives the magnetic ring 15 to move. The position sensing chip senses the displacement and sends a displacement signal.

[0054] By connecting any movable end to the push rod seat 1, the push rod seat 1 moves, the spring is subjected to force, and the spring force is fed back to the movable end. The multiple springs work together to achieve the purpose of providing brake pedal feel through the combined force feedback.

[0055] After the displacement signal fails, the pressure sensor 17 senses the change in force value and sends out a force value signal as redundancy.

[0056] Second embodiment:

[0057] The device housing 2 has a notch 202, within which the sensor spring seat 4 and a small spring 5 are disposed. An extension piece 101 is disposed on the side of the top rod seat 1, and the extension piece 101 is connected to the small spring 5. Specifically, the extension piece 101 is connected to the lower end of the small spring 5.

[0058] The top rod seat 1 is slidably disposed at the middle of the upper end of the device housing 2, and a first sealing ring 3 is provided between the top rod seat 1 and the device housing 2.

[0059] The device housing 2 has a main body 201 and an end cap 12. The end cap 12 is located below the main body 201. An elastic support 11 is provided in the middle receiving part of the end cap 12. A second sealing ring 13 is provided between the end cap 12 and the main body 201. The end cap 12 serves to support the elastic support 11 and provide a seal.

[0060] The pressure sensor 17 is disposed between the sensor spring seat 4 and the main body 201.

[0061] The bottom of the secondary spring 8 is connected to a secondary spring washer 9, which provides support for the secondary spring 8 and makes the structure more stable and less prone to deviation.

[0062] The lower part of the device housing 2 has a locking part 203, and the locking part 203 is respectively located at the upper end of the secondary spring washer 9 and the end cap 12. The secondary spring washer 9 is also pressed onto the chassis 110.

Claims

1. A braking device for a vehicle, characterized in that, include: Push rod seat (1), the upper end of which is connected to a driving push rod; A primary spring (6) is provided at the lower end of the top rod seat (1); The primary spring seat (7) is a hollow ring structure, the hollow ring structure having an ear plate (701), and a portion of the primary spring (6) is located inside the hollow ring structure; The spring connecting rod (10) has a base (110) and a fixing post (120) which extends from the bottom of the hollow ring structure into the interior of the primary spring (6); A secondary spring (8) is arranged around the outer periphery of the hollow ring structure, and the secondary spring (8) is located between the ear plate (701) and the chassis (110); An elastic support (11) is disposed at the lower end of the chassis (110).

2. The braking device for a vehicle according to claim 1, characterized in that, It also includes a device housing (2), in which the top rod seat (1), primary spring (6), primary spring seat (7), spring connecting rod (10), secondary spring (8) and elastic support (11) are all disposed within the device housing (2).

3. The braking device for a vehicle according to claim 2, characterized in that, The housing (2) of the device has a notch (202); a sensor spring seat (4) and a small spring (5) are provided in the notch (202), the upper end of the small spring (5) is connected to the sensor spring seat (4), and a pressure sensor (17) is provided on the sensor spring seat (4); an extension piece (101) is provided on the side of the top rod seat (1), and the extension piece (101) is connected to the small spring (5).

4. The braking device for a vehicle according to claim 3, characterized in that, The lower end of the small spring (5) is connected to the top rod seat (1).

5. The braking device for a vehicle according to claim 3, characterized in that, The top rod seat (1) is connected to a magnetic ring bracket (16) on its side, and the magnetic ring bracket (16) has a magnetic ring (15).

6. The braking device for a vehicle according to claim 5, characterized in that, Includes a control assembly (14) located on the side of the device housing (2), the control assembly (14) having a position sensing chip; the position sensing chip is used to sense the displacement position of the magnetic ring (15).

7. The braking device for a vehicle according to claim 3, characterized in that, The top rod seat (1) is slidably disposed at the middle of the upper end of the device housing (2), and a first sealing ring (3) is provided between the top rod seat (1) and the device housing (2).

8. The braking device for a vehicle according to claim 7, characterized in that, The device housing (2) has a main body (201) and an end cap (12). The end cap (12) is located below the main body (201). An elastic support (11) is provided in the middle receiving part of the end cap (12). A second sealing ring (13) is provided between the end cap (12) and the main body (201). The pressure sensor (17) is disposed between the sensor spring seat (4) and the main body (201).

9. The braking device for a vehicle according to claim 8, characterized in that, The bottom of the secondary spring (8) is connected to a secondary spring washer (9).

10. The braking device for a vehicle according to claim 9, characterized in that, The lower part of the device housing (2) has a locking part (203), and the locking part (203) is respectively located at the upper end of the secondary spring washer (9) and the end cap (12). The secondary spring washer (9) is also pressed onto the chassis (110).

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