Brake fluid device with alarm function

By combining a float switch-type liquid level sensor and a temperature detector, the problems of lack of real-time monitoring and automatic alarm in brake fluid monitoring are solved, realizing real-time monitoring and automatic alarm of brake fluid level and temperature, thus ensuring the stability and safety of the braking system.

CN224241003UActive Publication Date: 2026-05-15NINGBO KAIDA AUTO PARTS
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Patent Information

Application Number
CN202521028570.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-23
Publication Date
2026-05-15
Estimated Expiration
2035-05-23

AI Technical Summary

Technical Problem

Existing brake fluid monitoring methods rely on manual inspection and lack real-time and automatic alarm functions, which means that insufficient brake fluid cannot be detected in time, posing a safety hazard.

Method used

A float switch-type liquid level sensor is used to monitor the brake fluid level in real time and automatically alarm when it falls below a set threshold. Combined with a temperature detector and an electric cooling pipe, a suitable temperature is maintained, and easy liquid replacement is achieved through a water pump and hose.

Benefits of technology

It enables real-time monitoring and temperature control of brake fluid level, preventing brake failure, extending the life of the braking system, and improving operational convenience and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of vehicle brake systems, in particular to a brake fluid device with an alarm function, which comprises a fixed seat, a brake cylinder is mounted on the fixed seat, a storage tank for storing brake fluid is arranged at the top of the fixed seat, a fluid outlet is arranged at the bottom of the storage tank and communicated with the brake cylinder, and the brake cylinder is arranged on the fixed seat. A liquid inlet is formed in the top of the storage box, a cover plate is arranged at the liquid inlet, and a sealing ring is arranged in the liquid inlet. The liquid level of brake fluid is monitored in real time through the float switch type liquid level sensor, the controller is matched to automatically trigger the alarm when the liquid level is lower than a set threshold value, a driver or maintenance personnel is reminded to supplement the brake fluid in time, brake failure caused by insufficient brake fluid is effectively avoided, manual regular inspection is not needed, and the working efficiency is improved. The possibility of human negligence is reduced, and the stability and reliability of a braking system are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle braking system technology, and in particular to a brake fluid device with an alarm function. Background Technology

[0002] As a key component of vehicle safety, the braking system's performance directly affects the vehicle's braking effect and driving safety. In hydraulic braking systems, brake fluid, as the medium for transmitting braking force, directly impacts the system's stability and reliability. During long-term vehicle use, brake fluid levels may gradually decrease due to factors such as natural evaporation, leaks caused by decreased pipe sealing, and wear of braking system components. If the brake fluid level is too low and not replenished in time, air may be drawn into the master cylinder, creating air lock and leading to insufficient braking force or even brake failure, seriously threatening the safety of the driver and passengers. Therefore, effective monitoring of brake fluid levels is of great importance.

[0003] Currently, most vehicles are equipped with brake fluid reservoirs, and the fluid level is monitored by manual periodic checks. However, this traditional method has many shortcomings: on the one hand, it relies on the experience and judgment of drivers or maintenance personnel, lacks a unified standard, and is prone to missed detection due to negligence or misjudgment; on the other hand, manual detection is not real-time and cannot provide immediate warnings when the fluid level drops abnormally, posing a significant safety hazard.

[0004] Therefore, there is an urgent need for a brake fluid device that can monitor the brake fluid status in real time and automatically alarm in case of abnormality. Utility Model Content

[0005] In order to overcome the shortcomings of existing brake fluid monitoring methods, such as reliance on manual inspection and lack of real-time and automatic alarm functions, this utility model provides a brake fluid device that can monitor the brake fluid status in real time and automatically alarm in abnormal situations.

[0006] To address the aforementioned issues, this utility model employs the following technical solution: a brake fluid device with an alarm function, comprising a fixed base, a brake cylinder mounted on the fixed base, a storage tank on the top of the fixed base, an outlet at the bottom of the storage tank connected to the brake cylinder, an inlet at the top of the storage tank, a cover plate at the inlet, a sealing ring inside the inlet, a float switch-type liquid level sensor installed inside the storage tank, a controller fixedly mounted outside the storage tank, the controller being electrically connected to the float switch-type liquid level sensor, and an alarm mounted on the controller.

[0007] To further explain, a fixing plate is provided on the lower front side of the storage box, and a temperature detector is installed on the fixing plate. The probe of the temperature detector passes through the fixing plate and extends into the storage box. An electric cooling pipe is provided inside the storage box, and a temperature controller is installed on the outside of the storage box. The temperature controller is electrically connected to the electric cooling pipe and the temperature detector.

[0008] To further explain, a water pump is installed on the upper front side of the storage box. One port of the water pump is connected to a first hose, which extends downward into the interior of the storage box. The other port of the water pump is connected to a second hose. An arc-shaped placement rack is provided on the upper front side of the storage box.

[0009] To further explain, the inner surface of the arc-shaped placement rack is provided with a rubber pad.

[0010] To further explain, the water pump is equipped with a protective casing.

[0011] To further explain, one end of an anti-loss rope is connected to the top of the cover plate, and the other end of the anti-loss rope is fixed to the storage box.

[0012] Compared with the prior art, the present invention has the following technical effects: 1. The brake fluid level is monitored in real time by a float switch type liquid level sensor, and the controller automatically triggers an alarm when the liquid level is lower than the set threshold, reminding the driver or maintenance personnel to replenish the brake fluid in time, effectively avoiding brake failure caused by insufficient brake fluid, eliminating the need for regular manual inspection, reducing the possibility of human negligence, and ensuring the stability and reliability of the braking system.

[0013] 2. The temperature detector can monitor the working temperature of the brake fluid in real time, and work with the electric cooling pipe and temperature controller to cool the brake fluid and maintain it within a suitable working temperature range. This reduces the damage of high temperature to the brake system components, thereby extending the service life of the entire brake system and preventing the brake performance from decreasing or other safety hazards caused by overheating.

[0014] 3. By adding a water pump and a first and second hose, the replacement and maintenance of brake fluid are made simpler and faster, greatly improving the user's operational convenience. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional sectional view of the components of this utility model, including the fixing base, brake cylinder, and storage box.

[0017] Figure 3 This is a three-dimensional structural diagram of the sealing ring, controller, and alarm components of this utility model.

[0018] Figure 4 This is a three-dimensional sectional view of the components of this utility model, including the fixing plate, temperature detector, and controller.

[0019] Figure 5 This is a three-dimensional structural diagram of the water pump, first hose, and second hose of this utility model.

[0020] The markings in the attached diagram are as follows: 1: Fixing base, 2: Brake cylinder, 3: Storage tank, 4: Cover plate, 5: Sealing ring, 6: Float switch type liquid level sensor, 7: Controller, 8: Alarm, 9: Fixing plate, 10: Temperature detector, 11: Electric cooling pipe, 12: Thermostat, 13: Water pump, 14: First hose, 15: Second hose, 16: Arc-shaped placement rack, 17: Rubber pad, 18: Protective shell, 19: Anti-loss rope. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0022] Example 1: Please refer to Figures 1-3 A brake fluid device with an alarm function includes a mounting base 1, on which a brake cylinder 2 is mounted. A storage tank 3 for storing brake fluid is located on the top of the mounting base 1. The bottom of the storage tank 3 has an outlet connected to the brake cylinder 2, and the top of the storage tank 3 has an inlet. A cover plate 4 is provided at the inlet, and a sealing ring 5 is installed inside the inlet to increase the sealing between the cover plate 4 and the inlet. One end of an anti-loss rope 19 is connected to the top of the cover plate 4, and the other end of the anti-loss rope 19 is fixed to the storage tank 3. The cover plate 4 and the storage tank 3 are connected by the anti-loss rope 19. This effectively prevents the cover plate 4 from being lost. The storage tank 3 is equipped with a float switch type liquid level sensor 6. The float switch type liquid level sensor 6 uses its own float to float up and down with the change of the brake fluid level, thereby realizing real-time monitoring of the liquid level status. The storage tank 3 is fixedly installed with a controller 7. The controller 7 is electrically connected to the float switch type liquid level sensor 6 and is used to receive the liquid level signal output by it and to judge and process it according to a preset threshold. The controller 7 is equipped with an alarm 8. When the brake fluid level is detected to be lower than the set threshold, the controller 7 can control the alarm 8 to issue an alarm signal.

[0023] During use, the device is first opened with the cover plate 4, and brake fluid is added to the storage tank 3 through the inlet. After adding the brake fluid, the cover plate 4 is reset, and the sealing ring 5 ensures a good seal to prevent leakage. During vehicle operation, the brake fluid is stored in the storage tank 3 for the braking system to circulate. At the same time, the built-in float switch type liquid level sensor 6 continuously monitors the liquid level change. When the brake fluid level is within the normal range, the float moves with the liquid level, and the float switch type liquid level sensor 6 does not trigger an alarm signal. When the brake fluid level drops below the set safety threshold due to evaporation, leakage, or other reasons, the float position drops and triggers the switch action, outputting an electrical signal. This electrical signal is transmitted to the controller 7, which judges whether the current liquid level is abnormal according to preset logic. If it is confirmed that the liquid level is too low, the controller 7 drives the alarm 8 to start, issuing an audible and visual alarm signal to prompt the driver or maintenance personnel to check and replenish the brake fluid in time.

[0024] Example 2: Based on Example 1, please refer to... Figure 4 A fixing plate 9 is provided on the lower front side of the storage tank 3. A temperature detector 10 is installed on the fixing plate 9. The probe of the temperature detector 10 passes through the fixing plate 9 and extends into the storage tank 3 to monitor the temperature of the brake fluid. An electric cooling pipe 11 is provided inside the storage tank 3 for cooling the brake fluid. A thermostat 12 is installed outside the storage tank 3. The thermostat 12 is electrically connected to the electric cooling pipe 11 and the temperature detector 10. When the temperature detector 10 detects that the brake fluid temperature exceeds a set threshold, the thermostat 12 controls the electric cooling pipe 11 to start to reduce the temperature of the brake fluid.

[0025] During brake fluid storage, temperature detector 10 monitors the brake fluid's operating temperature in real time. Once the brake fluid temperature rises above a preset safety threshold, temperature detector 10 transmits this signal to temperature controller 12. After receiving the temperature signal from temperature detector 10, temperature controller 12 determines whether cooling measures need to be activated based on a preset temperature range. If the current temperature exceeds the safe operating range, temperature controller 12 issues a command to activate electric cooling pipe 11. Electric cooling pipe 11 starts working and absorbs heat from the brake fluid to lower its temperature, preventing brake performance degradation or other potential risks due to overheating. During the cooling process, temperature detector 10 continues to monitor the brake fluid temperature change and continuously feeds updated data back to temperature controller 12. Once the brake fluid temperature drops back to the normal range, temperature controller 12 immediately stops the operation of electric cooling pipe 11, thereby effectively maintaining the brake fluid within an ideal operating temperature range.

[0026] Please see Figure 5A water pump 13 is installed on the upper front side of the storage tank 3 to extract brake fluid from or pump brake fluid into the storage tank 3. The water pump 13 is covered with a protective shell 18 to effectively prevent external dust, moisture and other contaminants from entering the water pump 13 and avoid mechanical failure or electrical short circuit. One end of the water pump 13 is connected to a first hose 14, which extends downward into the storage tank 3. The other end of the water pump 13 is connected to a second hose 15. An arc-shaped rack 16 is provided on the upper front side of the storage tank 3 for hanging the second hose 15, which facilitates the storage of the second hose 15 and keeps the device neat and orderly. The inner surface of the arc-shaped rack 16 is provided with a rubber pad 17 to increase friction and prevent the second hose 15 from sliding or accidentally falling off during use.

[0027] When brake fluid needs to be replaced, the old brake fluid in the storage tank 3 can be extracted by operating the water pump 13. At this time, the first hose 14 serves as the extraction pipe, extending to the bottom of the storage tank 3 to ensure that all liquid can be completely extracted. The second hose 15 is used to drain the old brake fluid to an external container. After the old brake fluid is extracted, the new brake fluid is pumped into the storage tank 3 by the water pump 13 through the first hose 14 and the second hose 15, so as to realize the rapid replacement and replenishment of brake fluid, making replacement and maintenance simpler and faster.

[0028] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A brake fluid device with an alarm function, comprising a fixed base (1), a brake cylinder (2) mounted on the fixed base (1), a storage tank (3) disposed on the top of the fixed base (1), an outlet at the bottom of the storage tank (3) communicating with the brake cylinder (2), an inlet at the top of the storage tank (3), a cover plate (4) disposed at the inlet, and a sealing ring (5) disposed inside the inlet, characterized in that: The storage tank (3) is equipped with a float switch type liquid level sensor (6) inside, and a controller (7) is fixedly installed outside the storage tank (3). The controller (7) is electrically connected to the float switch type liquid level sensor (6), and an alarm (8) is installed on the controller (7).

2. The brake fluid device with alarm function according to claim 1, characterized in that: A fixing plate (9) is provided on the lower front side of the storage box (3). A temperature detector (10) is installed on the fixing plate (9). The probe of the temperature detector (10) passes through the fixing plate (9) and extends into the storage box (3). An electric cooling pipe (11) is provided inside the storage box (3). A temperature controller (12) is installed on the outside of the storage box (3). The temperature controller (12) is electrically connected to the electric cooling pipe (11) and the temperature detector (10).

3. A brake fluid device with alarm function according to claim 2, characterized in that: A water pump (13) is installed on the upper front side of the storage box (3). One port of the water pump (13) is connected to a first hose (14), which extends downward into the storage box (3). The other port of the water pump (13) is connected to a second hose (15). An arc-shaped placement rack (16) is provided on the upper front side of the storage box (3).

4. A brake fluid device with alarm function according to claim 3, characterized in that: A rubber pad (17) is provided on the inner surface of the arc-shaped placement rack (16).

5. A brake fluid device with alarm function according to claim 4, characterized in that: The water pump (13) is covered with a protective shell (18).

6. A brake fluid device with alarm function according to claim 5, characterized in that: One end of an anti-loss rope (19) is connected to the top of the cover plate (4), and the other end of the anti-loss rope (19) is fixed to the storage box (3).