Brake oil reservoir

By introducing a return port and a protective cover structure into the brake fluid reservoir, the problem of oil leakage when the electronic braking system coexists with the traditional braking system is solved, achieving effective management and safety monitoring of the fluid and ensuring the stability and safety of the braking system.

CN116985776BActive Publication Date: 2026-06-23LOVOL HEAVY IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
LOVOL HEAVY IND CO LTD
Filing Date
2023-09-06
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing brake fluid reservoirs cannot effectively solve the problem of brake fluid leakage when electronic braking systems and traditional braking systems coexist.

Method used

A brake fluid reservoir with a return port was designed. When the fluid level exceeds the maximum mark, it flows back to the transmission through the return port to prevent the reservoir from overflowing. A protective cover is installed on the return port to prevent the fluid from flowing back to the transmission. The reservoir is combined with a fluid level alarm and connecting wires to achieve fluid level monitoring.

Benefits of technology

It effectively prevents oil from overflowing from the oil reservoir, ensuring that the oil level is within the appropriate range, thus improving the stability and safety of the braking system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a brake oil pot, comprising an upper cup body, an oil return port, a first working oil port, a second working oil port, a lower cup body and an internal oil return port, wherein the upper cup body and the lower cup body are connected, the oil return port, the first working oil port and the second working oil port are arranged on the lower cup body, the first working oil port and the second working oil port are arranged on the two sides of the oil return port respectively, the internal oil return port is arranged in the lower cup body and is connected with the oil return port. The brake oil pot provided by the application has an oil return port, when the oil in the oil pot exceeds the highest scale line, the excess oil can flow back to the gearbox through the oil return port, so that oil spouting of the oil pot is prevented; the protective cover above the oil return port can prevent the oil in the brake oil pot from flowing back to the gearbox through the oil return port when the whole machine is jolted.
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Description

Technical Field

[0001] This application relates to the field of brake fluid reservoirs, and more particularly to a brake fluid reservoir. Background Technology

[0002] As a development trend in tractors, driverless tractors have seen rapid development in China in recent years. The electronic braking system enables braking and releasing of the driverless tractor. This system is connected in parallel with the traditional service braking system via a shuttle valve. Due to leakage in the shuttle valve, when the electronic braking system is operating, brake fluid flows into the brake fluid reservoir due to this leakage. After a period of operation, the brake fluid reservoir becomes full and begins to overflow.

[0003] The existing brake fluid reservoir only has two working ports, left and right. When electronic braking systems and traditional braking systems coexist, the problem of brake fluid leakage from the reservoir cannot be solved. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a brake fluid reservoir.

[0005] In a first aspect, this application provides a brake fluid reservoir, comprising: an upper cup body, a return port, a first working port, a second working port, a lower cup body, and an internal return port, wherein the upper cup body and the lower cup body are connected, the return port, the first working port, and the second working port are all disposed on the lower cup body, and the first working port and the second working port are respectively disposed on both sides of the return port, and the internal return port is disposed inside the lower cup body and connected to the return port.

[0006] Preferably, a protective cover is provided on the upper cup body.

[0007] Preferably, the upper cup body is provided with a maximum liquid level scale line, which is level with the internal oil return port.

[0008] Preferably, the lower cup body is provided with a minimum liquid level scale line.

[0009] Preferably, the oil return port is provided with an oil return port protective cover.

[0010] Preferably, the upper cup body is provided with an oil filling port.

[0011] Preferably, the filler neck is provided with a cover.

[0012] Preferably, the cover is provided with a liquid level alarm and a connecting wire, and the connecting wire is connected to the liquid level alarm.

[0013] Preferably, the first working oil port and the second working oil port are provided with brake fluid reservoir fixing grooves.

[0014] Preferably, a partition is provided inside the lower cup body.

[0015] The technical solutions provided in this application have the following advantages compared with the prior art:

[0016] This application provides a brake fluid reservoir with a return port. When the fluid level in the reservoir exceeds the maximum mark, the excess fluid can flow back to the transmission through the return port, preventing the reservoir from overflowing. The protective cover above the return port can prevent the brake fluid in the reservoir from flowing back to the transmission through the return port when the machine is bumped. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a brake fluid reservoir provided in an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the structure of a brake fluid reservoir provided in an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the structure of a brake fluid reservoir provided in an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of a brake fluid reservoir provided in an embodiment of this application. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] Figure 1 This is a schematic diagram of a brake fluid reservoir provided in an embodiment of this application.

[0025] This application provides a brake fluid reservoir, comprising: an upper cup body 1, a return port 4, a first working port 5, a second working port 6, a lower cup body 9, and an internal return port 13. The upper cup body 1 and the lower cup body 9 are connected. The return port 4, the first working port 5, and the second working port 6 are all disposed on the lower cup body 9, with the first working port 5 and the second working port 6 located on opposite sides of the return port 4. The internal return port 13 is disposed inside the lower cup body 9 and is connected to the return port 4.

[0026] Specifically, the brake fluid reservoir body with return port includes an upper cup 1 and a lower cup 9, both of which are molded parts. After the upper cup 1 and lower cup 9 are made, they are welded together into a whole using a special welding mold. The first working port 5 and the second working port 6 are respectively connected to the left and right inlets of the brake pump to provide brake fluid to the brake pump.

[0027] In this embodiment, the upper cup body 1 is provided with a protective cover 2, the upper cup body 1 is provided with a maximum liquid level scale line 7, the maximum liquid level scale line 7 is flush with the internal oil return port 13, the lower cup body 9 is provided with a minimum liquid level scale line 8, the oil return port 4 is provided with an oil return port protective cover 12, the upper cup body 1 is provided with an oil filling port 15, the oil filling port 15 is provided with a cover 3, the cover 3 is provided with a liquid level alarm 11 and a connecting line 10, the connecting line 10 is connected to the liquid level alarm 11, the first working oil port 5 and the second working oil port 6 are provided with brake fluid reservoir fixing slots 14, and the lower cup body 9 is provided with a partition 16 inside.

[0028] Specifically, the upper cup body 1 has an oil filler port 15 and a maximum liquid level mark 7 on its outer side, and an oil return port protective cover 12 on its inner side; the lower cup body 9 has an oil return port 4, a first working oil port 5 and a second working oil port 6, and a minimum liquid level mark 8 on its outer side, and brake fluid reservoir fixing slots 14 on the first working oil port 5 and the second working oil port 6; the lower cup body 9 has a partition 16 and an internal oil return port 13 on its inner side, and the liquid level alarm 11 and connecting wire 10 are integrated on the cover body 3, which is threadedly connected to the oil filler port 15. The return port protective cover 12 covers the internal return port 13, effectively preventing brake fluid from flowing back into the transmission through the return port when the machine is bumped. The internal return port 13 is flush with the maximum fluid level mark 7. When the brake fluid level in the reservoir exceeds the maximum fluid level mark 7, excess fluid flows back into the transmission through the internal return port 13. When the brake fluid level in the reservoir is below the minimum fluid level mark 8, the fluid level alarm 11 will issue an alarm signal. The alarm signal is transmitted to the controller via the connecting line 10 and indicates that the brake fluid level in the reservoir is too low on the instrument panel. The partition 16 enhances the overall strength of the brake fluid reservoir. The brake fluid reservoir fixing slot 14 is used to install and fix the brake fluid reservoir with clamps. The protective cover 2 protects the upper cup body 1, the cover body 3, and the connecting line 10.

[0029] This application provides a brake fluid reservoir with a return port. When the fluid level in the reservoir exceeds the maximum mark, the excess fluid can flow back to the transmission through the return port, preventing the reservoir from overflowing. The protective cover above the return port can prevent the brake fluid in the reservoir from flowing back to the transmission through the return port when the machine is bumped.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A brake fluid reservoir, characterized in that, include: The system comprises an upper cup body, an oil return port, a first working oil port, a second working oil port, a lower cup body, and an internal oil return port. The upper cup body and the lower cup body are connected. The oil return port, the first working oil port, and the second working oil port are all located on the lower cup body, with the first working oil port and the second working oil port located on opposite sides of the oil return port. The internal oil return port is located inside the lower cup body and is connected to the oil return port. The upper cup body is provided with a maximum liquid level scale line, which is level with the internal oil return port; The lower cup body is provided with a minimum liquid level scale line, the upper cup body is provided with a filling port, the filling port is provided with a cover, the cover is provided with a liquid level alarm and a connecting wire, and the connecting wire is connected to the liquid level alarm. When the brake fluid level in the reservoir exceeds the maximum fluid level mark, the excess fluid flows back to the transmission through the internal return port; when the brake fluid level in the reservoir falls below the minimum fluid level mark, the fluid level alarm will sound an alarm signal.

2. The brake fluid reservoir according to claim 1, characterized in that, A protective cover is provided on the upper cup body.

3. The brake fluid reservoir according to claim 1, characterized in that, The return oil port is equipped with a return oil port protective cover.

4. The brake fluid reservoir according to claim 1, characterized in that, The first working oil port and the second working oil port are provided with brake fluid reservoir fixing slots.

5. The brake fluid reservoir according to claim 1, characterized in that, The lower cup body is equipped with a partition.

Citation Information

Patent Citations

  • CN220615804U

  • KR2019990032385U

  • US20130048643A1