Brake fluid storage tank and automobile

Abstract

The utility model discloses a brake fluid storage tank and an automobile. The brake fluid storage tank comprises a liquid level sensor, a blocking wall is arranged around the liquid level sensor, the blocking wall comprises a front transverse wall, a longitudinal wall and a rear transverse wall, and a first window is arranged at the position of the rear transverse wall. According to the brake fluid storage tank, false alarm of brake fluid can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobiles, and in particular, to a brake fluid storage tank and an automobile with the same. BACKGROUND

[0002] The brake fluid storage tank is a key subassembly in the automobile braking system, and its function is to store and provide brake fluid for the braking system to brake the automobile. A sensor is arranged in the brake fluid storage tank, and when the liquid level of the stored brake fluid drops to a certain height, the sensor can sense it to issue an alarm, thereby ensuring the safety of the braking system.

[0003] There is a brake fluid storage tank, and during the deceleration or acceleration of the automobile, the liquid level in the cavity where the sensor is located drops too quickly, thereby causing a brake fluid false alarm problem. CONTENT OF THE UTILITY MODEL

[0004] The main technical problem to be solved by the present application is how to reduce brake fluid false alarms.

[0005] To solve the above technical problem, on the one hand, the present application provides a brake fluid storage tank, which comprises a liquid level sensor, a blocking wall is arranged around the liquid level sensor, the blocking wall comprises a front transverse wall, a longitudinal wall and a rear transverse wall, and a first window is arranged at the rear transverse wall.

[0006] According to the brake fluid storage tank provided by one aspect of the present application, the first window is located above the rear transverse wall.

[0007] According to the brake fluid storage tank provided by one aspect of the present application, the longitudinal wall further comprises a longitudinal wall rear portion extending to the rear of the rear transverse wall.

[0008] According to the brake fluid storage tank provided by one aspect of the present application, a second window is arranged in the longitudinal wall rear portion, and the second window is located above the longitudinal wall rear portion.

[0009] According to the brake fluid storage tank provided by one aspect of the present application, the second window is configured as a chamfered rectangle.

[0010] According to the brake fluid storage tank provided by one aspect of the present application, the liquid level sensor comprises a float, and the float is located at the center of the space surrounded by the blocking wall.

[0011] According to the brake fluid storage tank provided by one aspect of the present application, the first window corresponds to the float in the vehicle longitudinal direction.

[0012] According to the brake fluid storage tank provided by one aspect of the present application, the brake fluid storage tank comprises a liquid filling port, and the liquid level sensor is arranged rearward relative to the liquid filling port.

[0013] According to one aspect of the present application, the brake fluid reservoir comprises a brake fluid outlet located in the space surrounded by the barrier wall.

[0014] According to another aspect of the present application, the automobile comprises the brake fluid reservoir.

[0015] According to the technical solution of the present application, the barrier wall can at least partially hinder the brake fluid in the space surrounding the liquid level sensor inside the brake fluid reservoir from flowing out, thereby reducing false alarms of the brake fluid. BRIEF DESCRIPTION OF DRAWINGS

[0016] The disclosure of the present application will be described with reference to the accompanying drawings. It should be appreciated that the drawings are only for the purpose of illustration and are not intended to limit the scope of protection of the present application. Among them:

[0017] Figure 1 schematically shows the brake fluid reservoir according to one embodiment of the present application;

[0018] Figure 2 schematically shows the horizontal cross-sectional view of the brake fluid reservoir in Figure 1

[0019] Figure 3 schematically shows the vertical cross-sectional view of the brake fluid reservoir in Figure 1 DETAILED DESCRIPTION

[0020] The embodiments of the present application will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that the description is only descriptive, exemplary, and should not be interpreted as limiting the scope of protection of the present application.

[0021] First, the coordinate system established herein is described. The origin O of the coordinate system coincides with the center of mass of the vehicle, and XOZ lies in the plane of symmetry of the vehicle. When the vehicle is driving on a horizontal road surface, the X axis is parallel to the ground and points forward, the Y axis points to the left of the driver, and the Z axis points upward through the center of mass.

[0022] The orientation terms mentioned herein are defined as follows. The longitudinal direction is the direction of the X axis, and the lateral direction is the direction of the Y axis. "Front and back" defines the relative position in the X axis direction, and "front" is located in the positive direction of the X axis relative to "back". "Up and down" defines the relative position in the Z axis direction, and "up" is located in the positive direction of the Z axis relative to "down".

[0023] Please refer to Figures 1 to 3 ​​As shown, the brake fluid reservoir 100 according to the embodiment of the present application comprises a liquid level sensor 1, and a blocking wall 2 is arranged around the liquid level sensor 1, which can block the flow of brake fluid, in particular, block the flow of brake fluid to the front. The blocking wall 2 comprises a front transverse wall 21, a longitudinal wall 22, and a rear transverse wall 23, and a first window 24 is arranged at the rear transverse wall 23. The front transverse wall 21 and the rear transverse wall 23 extend substantially along the vehicle transverse direction, and the front transverse wall 21 is located in front of the rear transverse wall 23. The longitudinal wall 22 extends substantially along the vehicle longitudinal direction and is substantially located between the front transverse wall 21 and the rear transverse wall 23.

[0024] The front transverse wall 21, the longitudinal wall 22, and the rear transverse wall 23, for example, extend continuously and do not have gaps or openings therebetween. The front transverse wall 21, the longitudinal wall 22, and the rear transverse wall 23 shown in the figure are only schematic, and they can each be composed of one or more walls.

[0025] A space (i.e., a first space 51) at least partially surrounding the liquid level sensor 1 is formed by the front transverse wall 21, the longitudinal wall 22, and the rear transverse wall 23, and brake fluid can be accommodated in the space.

[0026] A space surrounding the liquid level sensor 1 in all directions is formed by the front transverse wall 21, the longitudinal wall 22, the rear transverse wall 23, and the housing of the brake fluid reservoir 100. It is also possible that the longitudinal wall 22 can comprise two longitudinally extending sub-longitudinal walls, and a space surrounding the liquid level sensor 1 in all directions is formed by the two sub-longitudinal walls cooperating with the front transverse wall 21 and the rear transverse wall 23. The above-mentioned space is closed in the up-down direction, for example, by the housing of the brake fluid reservoir 100.

[0027] The first window 24 is used for the flow of brake fluid and gas. For example, during filling, brake fluid flows into the first space 51 through the first window 24, and gas flows out of the first space 51. The first window 24 is located above the rear transverse wall 23 (with reference to the figure), which is beneficial for maintaining brake fluid in the first space 51 and preventing brake fluid from flowing out of the first space 51. Figure 3

[0028] In this embodiment according to the present application, by arranging the blocking wall 2, the flow of brake fluid in the first space 51 inside the brake fluid reservoir 100 can be at least partially blocked, thereby reducing false brake fluid alarms. Specifically: for deceleration working conditions (with reference to the figure), the front transverse wall 21 and the rear transverse wall 23 can block the flow of brake fluid to the front, thereby reducing the possibility of brake fluid flowing out of the first space 51; for acceleration working conditions (with reference to the figure), the front transverse wall 21 and the rear transverse wall 23 can block the flow of brake fluid to the rear, thereby reducing the possibility of brake fluid flowing out of the first space 51. Figure 3 ​As shown, since the first window 24 is located in the rear transverse wall 23, there are no windows in the front transverse wall 21 and the longitudinal wall 22 that allow brake fluid to flow out, thus preventing brake fluid from flowing out of the first space 51; for steering conditions, there are no windows in the longitudinal wall 22 that allow brake fluid to flow out, preventing brake fluid from flowing out of the first space 51 whether turning left or right; for acceleration conditions, the brake fluid in the brake fluid reservoir 100 outside the first space 51 will flow backward at least partially due to inertia, which hinders the flow of brake fluid from the first space 51.

[0029] It's easy to understand that in combined driving conditions involving alternating acceleration, deceleration, and steering, the established barriers can reduce false brake fluid warnings. This is particularly effective for vehicles with good acceleration and deceleration performance.

[0030] Furthermore, the longitudinal wall 22 may also include a rear portion 25 extending behind the rear transverse wall 23. The longitudinal wall 22 may extend, for example, to the rear housing of the brake fluid reservoir 100. Through the rear portion 25, the rear transverse wall 23, and the housing of the brake fluid reservoir 100, a second space 52 is formed behind the rear transverse wall 23, in which brake fluid can also be contained. Through the provided rear portion 25 and the thus formed second space 52, a certain amount of brake fluid can be stored behind the first window 24, preventing brake fluid from flowing out of the first space 51, and in some cases, brake fluid can be replenished from the second space 52 into the first space 51, thereby reducing false brake fluid alarms.

[0031] A second window 26 is provided in the rear portion 25 of the longitudinal wall, and the second window 26 is located above the rear portion 25 of the longitudinal wall (see reference). Figure 3 As shown), this helps to keep the brake fluid in the second space 52 and prevent the brake fluid from flowing out of the second space 52.

[0032] For example, the second window 26 is constructed as a chamfered rectangle, the chamfer extending approximately from front to back and from top to bottom. For deceleration conditions, the brake fluid level slopes from front to back and from top to bottom. Figure 3 The yellow block in the middle indicates the part filled with brake fluid (the sloping line at its edge represents the fluid surface). The second window 26, designed in this way, can effectively prevent brake fluid from flowing out of the second space 52.

[0033] The liquid level sensor 1 comprises a float 11 which is located substantially in the center, e.g. the geometric center, of the space surrounded by the barrier wall 2 in the horizontal plane. The float 11 is suspended in the brake fluid and is used to detect the liquid level of the brake fluid. When the liquid level of the brake fluid around the float 11 drops to a certain height, this can be sensed by the float 11 to issue an alarm, thereby ensuring the safety of the brake system.

[0034] Exemplarily, the first window 24 corresponds to the float 11 in the vehicle longitudinal direction. For example, the first window 24 and the center of the float 11 have substantially the same coordinates in the Y-axis direction. In this way, especially for the steering working condition, whether it is left turn or right turn, a higher liquid level can be maintained around the float 11, thereby preventing false alarms of brake fluid.

[0035] The brake fluid reservoir 100 further comprises a filling opening 3 through which brake fluid can be supplemented into the brake fluid reservoir 100. The liquid level sensor 1 is arranged rearward relative to the filling opening 3.

[0036] In addition, the brake fluid reservoir 100 comprises a brake fluid outlet 4 which is used to supplement brake fluid to the brake system in use. The brake fluid outlet 4 is located in the space (i.e. the first space 51) surrounded by the barrier wall 2, thereby ensuring that in use, brake fluid can always be supplemented to the brake system when needed, without sucking in gas.

[0037] It should be noted that the aforementioned "front" and "rear" are only used to describe the relative positions of the various parts in the brake fluid reservoir, and are not strictly limited to the positions relative to the vehicle in actual use. It is easy to understand that in the case where the structure of the brake fluid reservoir has been fixed, in actual use, for example, the brake fluid reservoir is rotated 180 degrees around the Z-axis (i.e. the filling opening is at the rear and the liquid level sensor is at the front), it is also possible to prevent the liquid level in the chamber where the liquid level sensor is located from dropping too fast and thus reduce false alarms of brake fluid. These solutions also fall within the scope of the present application.

[0038] The present application also includes an automobile with a brake fluid reservoir according to any one or more of the embodiments described above, which has the technical features and effects corresponding to the foregoing description, and therefore will not be described here again.

Claims

1. A brake fluid reservoir (100) characterized in that, The brake fluid reservoir (100) comprises a liquid level sensor (1), a blocking wall (2) is arranged around the liquid level sensor (1), the blocking wall (2) comprises a front transverse wall (21), a longitudinal wall (22) and a rear transverse wall (23), a first window (24) is arranged at the rear transverse wall (23).

2. The brake fluid reservoir (100) according to claim 1, characterized in that The first window (24) is located above the rear transverse wall (23).

3. The brake fluid reservoir (100) according to claim 1, characterized in that The longitudinal wall (22) further comprises a longitudinal wall rear portion (25) extending to the rear of the rear transverse wall (23).

4. The brake fluid reservoir (100) according to claim 3, characterized in that A second window (26) is arranged in the longitudinal wall rear portion (25), and the second window (26) is located above the longitudinal wall rear portion (25).

5. The brake fluid reservoir (100) according to claim 4, characterized in that The second window (26) is configured as a chamfered rectangle.

6. The brake fluid reservoir (100) of claim 1, wherein, The liquid level sensor (1) comprises a float (11), and the float (11) is located at the center of the space surrounded by the blocking wall (2).

7. The brake fluid reservoir (100) according to claim 6, characterized in that The first window (24) corresponds to the float (11) in the vehicle longitudinal direction.

8. The brake fluid reservoir (100) of claim 1, wherein, The brake fluid reservoir (100) comprises a liquid filling port (3), and the liquid level sensor (1) is arranged rearward relative to the liquid filling port (3).

9. The brake fluid reservoir (100) of claim 1, wherein, The brake fluid reservoir (100) comprises a brake fluid outlet (4), and the brake fluid outlet (4) is located in the space surrounded by the blocking wall (2).

10. An automobile characterized by comprising: It comprises the brake fluid reservoir (100) according to any one of claims 1 to 9. It comprises the brake fluid reservoir (100) according to any one of claims 1 to 9.

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