Brake fluid storage tank and automobile

Abstract

The utility model discloses a brake fluid storage tank and an automobile. A circulation channel exists in the brake fluid storage tank, a first window and a second window are arranged in the circulation channel, and the first window and the second window are arranged in a staggered mode. 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 the liquid level to send 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 INVENTION

[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, the present application provides a brake fluid storage tank, and a flow passage is arranged in the brake fluid storage tank, a first window and a second window are arranged in the flow passage, and the first window and the second window are arranged staggeredly.

[0006] According to the brake fluid storage tank provided by one aspect of the present application, the flow passage is used to connect a first cavity and a second cavity of the brake fluid storage tank.

[0007] According to the brake fluid storage tank provided by one aspect of the present application, the opening directions of the first window and the second window are parallel to the lateral direction of the vehicle.

[0008] According to the brake fluid storage tank provided by one aspect of the present application, the first cavity is located in front of the second cavity in the longitudinal direction of the vehicle.

[0009] According to the brake fluid storage tank provided by one aspect of the present application, the first cavity is connected with the first window, and the second cavity is connected with the second window.

[0010] According to the brake fluid storage tank provided by one aspect of the present application, in a cross section perpendicular to the lateral direction of the vehicle, the first window is located above and rearward of the second window.

[0011] According to the brake fluid storage tank provided by one aspect of the present application, in a cross section perpendicular to the lateral direction of the vehicle, the first window and the second window do not overlap.

[0012] According to one aspect of the present application, the brake fluid reservoir is provided with a liquid inlet in the first chamber and a liquid level sensor in the second chamber.

[0013] According to one aspect of the present application, the brake fluid reservoir is provided with a blocking wall near the first window in the first chamber, which is used to block the flow of brake fluid.

[0014] In another aspect, the present application provides an automobile comprising the brake fluid reservoir described above.

[0015] In the technical solution according to the present application, by staggering the first window and the second window, the flow of fluid (i.e. brake fluid and gas) inside the brake fluid reservoir can be at least partially hindered, thereby reducing false brake fluid alarms. 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 a brake fluid reservoir according to one embodiment of the present application;

[0018] Figure 2 schematically shows a cross-sectional view of the brake fluid reservoir in Figure 1 from another perspective;

[0019] Figure 3 schematically shows a cross-sectional view of the brake fluid reservoir in Figure 1 from another perspective;

[0020] Figure 4 schematically shows a cross-sectional view of the brake fluid reservoir in Figure 1 from another perspective. DETAILED DESCRIPTION

[0021] 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 these descriptions are only descriptive, exemplary and should not be interpreted as limiting the scope of protection of the present application.

[0022] 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.

[0023] The following terms are defined for the orientation terms mentioned in this document. 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".

[0024] Figures 1 to 4 A brake fluid reservoir 100 according to one embodiment of the application is shown. In the brake fluid reservoir 100, a flow passage 1 is present, in which a first window 11 and a second window 12 are provided.

[0025] Reference is made to Figure 4 If the brake fluid reservoir is in a state of being mounted to a vehicle, the flow direction of the flow passage 1 is parallel to the lateral direction of the vehicle. Reference is made to Figure 2 and Figure 3 In the direction perpendicular to the flow direction of the flow passage 1, the first window 11 and the second window 12 are arranged staggered.

[0026] In embodiments not shown, the flow direction of the flow passage can also be parallel to the longitudinal direction of the vehicle, or the flow passage is inclined and the flow direction contains a component parallel to the lateral direction of the vehicle and a component parallel to the longitudinal direction of the vehicle.

[0027] In the brake fluid reservoir 100, a plurality of chambers can be present. A chamber at least partially encloses a certain space inside the brake fluid reservoir 100, in which space the flow of brake fluid and gas is at least partially limited. For example, the brake fluid reservoir 100 comprises a first chamber 21 and a second chamber 22, and if the brake fluid reservoir is in a state of being mounted to a vehicle, the first chamber 21 is located in front of the second chamber 22 in the longitudinal direction of the vehicle. Further, if the brake fluid reservoir is in a state of being mounted to a vehicle, the first chamber 21 is located above the second chamber 22 in the height direction of the vehicle, i.e. in the direction of the Z-axis. The brake fluid reservoir 100 can also comprise further chambers, and in the first chamber 21 and the second chamber 22, respectively, sub-chambers can also be present.

[0028] The flow passage 1 in the brake fluid reservoir 100 serves to guide the flow of brake fluid and gas. In particular, the flow passage 1 serves to connect the first chamber 21 and the second chamber 22 of the brake fluid reservoir 100, so that brake fluid and gas can flow between the first chamber 21 and the second chamber 22. For example, the flow passage 1 is the only passage connecting the first chamber 21 and the second chamber 22 of the brake fluid reservoir 100.

[0029] Exemplarily, the first window 11 and the second window 12 are arranged at two ends of the flow passage 1, respectively, for connecting the brake fluid and the gas at the two ends of the flow passage 1. The first chamber 21 is directly connected with the first window 11, and the second chamber 22 is directly connected with the second window 12. It is also feasible that the first chamber 21 is indirectly connected with the first window 11, and the second chamber 22 is indirectly connected with the second window 12. The brake fluid and the gas in the first chamber 21 can enter the flow passage 1 through the first window 11, and enter the second chamber 22 through the second window 12, and vice versa.

[0030] Reference Figure 1 As shown, a liquid inlet 3 is arranged in the first chamber 21, and a liquid level sensor 4 is arranged in the second chamber 22. A cover is arranged at the liquid inlet 3 for closing the liquid inlet 3. Of course, the liquid inlet 3 can be arranged in the second chamber 22, and the liquid level sensor 4 can be arranged in the first chamber 21. The liquid level sensor 4 comprises a float which is suspended in the brake fluid for detecting the liquid level of the brake fluid. When the liquid level of the brake fluid around the float falls to a certain height, the float can be used to sense and send an alarm, thereby ensuring the safety of the brake system.

[0031] The opening of the window is where the maximum cross section of the brake fluid or the gas flowing through the window is located, and the opening direction of the window is perpendicular to the maximum cross section. In the embodiment shown in the figure, the opening directions of the first window 11 and the second window 12 are parallel to the vehicle transverse direction, which can effectively reduce the false alarm of the brake fluid for the combined working conditions of the vehicle in the vehicle longitudinal direction (for example, deceleration after acceleration, or acceleration after deceleration). In addition, the opening directions of the first window 11 and the second window 12 can also be in other directions, for example, the opening directions of the first window 11 and the second window 12 are parallel to the vehicle longitudinal direction.

[0032] The openings of the first window 11 and the second window 12 can be respectively configured in various shapes, such as circular, rectangular or irregular shape. Reference Figure 2 and Figure 3 As shown, the opening of the first window 11 is configured as a chamfered rectangle, and the opening of the second window 12 is configured as a rectangle. The first window 11 and the second window 12 are arranged staggered, which means that the geometric centers of the first window 11 and the second window 12 are staggered and not coincident. For example, the geometric centers of the first window 11 and the second window 12 are staggered in the cross section perpendicular to the vehicle transverse direction.

[0033] In the cross section perpendicular to the vehicle transverse direction, the first window 11 is located above and behind the second window 12, as shown in the figure. Figure 2In particular, the geometrical center of the first window 11 is located in the XOZ plane above and to the right of the geometrical center of the second window 12.

[0034] In the embodiment shown in the figure, the filling opening 3 in the brake fluid reservoir 100 is arranged in the first chamber 21 and the liquid level sensor 4 is arranged in the second chamber 22, the first chamber 21 and the second chamber 22 being in communication through the flow passage 1. When the brake fluid reservoir 100 is first put into use or needs to be added with brake fluid during long-term operation, the brake fluid enters the first chamber 21 through the filling opening 3, and then enters the second chamber 22 through the first window 11, the flow passage 1 and the second window 12.

[0035] During the driving of the vehicle, if the vehicle is first decelerated, the brake fluid will tend to flow from the second chamber 22 to the first chamber 21 due to inertia. Due to the arrangement of the first window 11 and the second window 12, the brake fluid in the second chamber 22 is not easy to enter the first chamber 21 and the gas in the first chamber 21 is not easy to enter the second chamber 22, so that the liquid level of the brake fluid in the second chamber 22 will not be reduced to the alarm level. Then if the vehicle is accelerated, the liquid level of the brake fluid in the second chamber 22 will not be reduced to the alarm level due to the high filling degree of the brake fluid in the second chamber 22 and the brake fluid tending to flow to the second chamber 22 due to inertia. In this way, the false alarm of the brake fluid can be reduced.

[0036] Similarly, during the driving of the vehicle, if the vehicle is first accelerated and then decelerated, as described above, the liquid level of the brake fluid in the second chamber 22 will not be reduced to the alarm level. In this way, the false alarm of the brake fluid can also be reduced.

[0037] It is easy to understand that for the combined working condition of alternating acceleration and deceleration, the liquid level of the brake fluid in the second chamber 22 will not be reduced to the alarm level, thereby reducing the false alarm of the brake fluid. This can particularly reduce the false alarm of the brake fluid for vehicles with good acceleration and deceleration performance.

[0038] Similarly, during the left turn or right turn of the vehicle, the flow of fluid between the first chamber 21 and the second chamber 22 can be hindered by the arrangement of the first window 11 and the second window 12, thereby reducing the false alarm of the brake fluid.

[0039] Further, in a cross section perpendicular to the vehicle transverse direction, the first window 11 and the second window 12 have no overlap. During deceleration of the vehicle due to inertia, the liquid level of the brake fluid in the first chamber 21 will tilt rearwardly downward. In this way, no matter how the liquid level of the brake fluid tilts, even if the liquid level of the brake fluid is parallel to the vertical line, no fluid passage between the first window 11 and the second window 12 is generated so that the gas in the first chamber 21 flows into the second chamber 22, thereby reducing the brake fluid false alarm.

[0040] In the first chamber 21, a blocking wall 23 is arranged near the first window 11, which is used to block the flow of brake fluid, thereby further hindering the flow of fluid between the first chamber 21 and the second chamber 22, thereby reducing the brake fluid false alarm.

[0041] The application also includes an automobile with the brake fluid reservoir of any one or more of the foregoing embodiments, which has the technical features and technical effects corresponding to the foregoing description, and therefore will not be described here.

Claims

1. A brake fluid reservoir (100), characterized in that, There is a flow channel (1) in the brake fluid reservoir (100), and a first window (11) and a second window (12) are provided in the flow channel (1), and the first window (11) and the second window (12) are arranged in a staggered manner.

2. The brake fluid reservoir (100) according to claim 1, characterized in that, The flow channel (1) is used to connect the first chamber (21) and the second chamber (22) of the brake fluid reservoir (100).

3. The brake fluid reservoir (100) according to claim 2, characterized in that, The opening directions of the first window (11) and the second window (12) are parallel to the vehicle's transverse direction.

4. The brake fluid reservoir (100) according to claim 2, characterized in that, The first chamber (21) is located in front of the second chamber (22) in the longitudinal direction of the vehicle.

5. The brake fluid reservoir (100) according to claim 4, characterized in that, The first chamber (21) is connected to the first window (11), and the second chamber (22) is connected to the second window (12).

6. The brake fluid reservoir (100) according to claim 5, characterized in that, In a cross-section perpendicular to the vehicle's transverse direction, the first window (11) is positioned rearward and above the second window (12).

7. The brake fluid reservoir (100) according to claim 6, characterized in that, In a cross-section perpendicular to the vehicle's transverse direction, the first window (11) and the second window (12) do not overlap.

8. The brake fluid reservoir (100) according to claim 4, characterized in that, A liquid inlet (3) is provided in the first chamber (21), and a liquid level sensor (4) is provided in the second chamber (22).

9. The brake fluid reservoir (100) according to claim 5, characterized in that, In the first chamber (21), a barrier wall (23) is provided near the first window (11) to block the flow of brake fluid.

10. A car, characterized in that, It includes a brake fluid reservoir (100) according to any one of claims 1 to 9.

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