Brake oil reservoir

Abstract

The application relates to a brake oil pot, which comprises a brake pot body, a storage cavity for storing brake oil is formed in the brake pot body, a flow guide cavity is arranged on the upper side of the storage cavity, the brake pot body is provided with a flow guide plate for separating the storage cavity and the flow guide cavity, a liquid return port and a liquid injection port are arranged on the top of the brake pot body, a liquid outlet is arranged on the bottom of the brake pot body, a liquid outlet pipe is arranged at the outer end of the liquid outlet, the flow guide plate is provided with a flow guide port penetrating through the inner and outer surfaces and used for connecting the storage cavity and the flow guide cavity, the brake pot body is provided with a filter mechanism for covering the flow guide port, the filter mechanism comprises a screen plate assembly vertically slidingly arranged on the flow guide port and a driving assembly for sliding the screen plate assembly. The application has the effect of improving the problem that the brake oil pot cannot timely output brake oil due to too little oil.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile brake system components, in particular to a brake oil pot. BACKGROUND

[0002] In the field of automobile manufacturing, the brake system is a key part to ensure driving safety, and the brake oil pot, as an important component of the brake system, directly affects the reliability and stability of the brake system.

[0003] In the related art, the brake oil pot generally includes a liquid storage chamber for storing brake oil, and a pipeline connecting the liquid storage chamber with the brake master cylinder to realize the delivery of brake oil. The inside of the liquid storage chamber is provided with a flow channel having a labyrinth structure by a partition plate, so that the brake oil slowly flows along the flow channel to the output end after entering the liquid storage chamber, thereby forming a large circulation in the liquid storage chamber.

[0004] For the related art in the above, the inventors believe that when the brake oil in the brake system is insufficient, due to the relatively complex structure of the flow channel, it takes a long time for the brake oil to flow to the output end, thus there is a risk of affecting the normal operation of the brake system due to the inability to output brake oil in time. SUMMARY

[0005] In order to improve the problem that the brake oil pot cannot output brake oil in time due to insufficient oil, the present application provides a brake oil pot.

[0006] The brake oil pot provided by the present application adopts the following technical scheme:

[0007] A brake oil pot, comprising a brake pot body, wherein the inside of the brake pot body is formed with a liquid storage chamber for storing brake oil and a flow guide chamber arranged on the upper side of the liquid storage chamber, and the brake pot body is provided with a flow guide plate for separating the liquid storage chamber and the flow guide chamber; the top of the brake pot body is provided with a liquid return port in communication with the flow guide chamber and used for arranging an automobile brake pipeline, and a liquid injection port used for adding liquid to the liquid storage chamber; the bottom of the brake pot body is provided with a liquid outlet port, and an outlet pipe connected with an automobile brake master cylinder is arranged at the outer end of the liquid outlet port; the flow guide plate has a flow guide port penetrating the inner and outer surfaces and used for communicating the liquid storage chamber and the flow guide chamber, and the brake pot body is provided with a filter mechanism in the flow guide chamber for covering the flow guide port; the filter mechanism comprises a mesh plate assembly vertically slidingly arranged in the flow guide port and a driving assembly driving the mesh plate assembly to move.

[0008] By adopting the above technical scheme, during the operation of the automobile brake system, the pressure applied by the brake master cylinder causes the brake oil to be compressed and flow demand to be generated, the brake oil in the liquid storage chamber flows out through the liquid outlet at the bottom of the brake pot under the action of the pressure difference, enters the liquid outlet pipe and is transported to the brake master cylinder to perform the brake function; when the brake action is released or the pressure of the master cylinder is reduced, the volume of the brake oil is restored or the system needs to be returned, the returned brake oil flows into the flow guide chamber along the brake pipeline connected to the liquid return port, and under the guidance of the flow guide plate, flows to the flow guide port, at this time, the mesh plate assembly at the flow guide port filters the brake oil, intercepts solid impurities and separates the trapped bubbles, and the filtered and purified brake oil reenters the liquid storage chamber through the flow guide port, completing the brake oil circulation loop; when the liquid level of the brake oil in the liquid storage chamber is insufficient, in order to ensure the brake response speed, the drive assembly drives the mesh plate assembly to vertically lift, a bypass channel is formed at the flow guide port after the mesh plate is lifted, so that the returned brake oil can be directly and quickly injected into the liquid storage chamber without filtering through the mesh plate assembly, realizing emergency supplement of the liquid storage chamber oil amount; if the total brake oil amount is insufficient due to leakage or consumption of the entire brake system, the operator can add brake oil to the brake pot through the liquid injection port above the brake pot to maintain the normal working liquid level of the system.

[0009] Optionally, the flow guide port is square in cross section perpendicular to the sliding direction of the mesh plate assembly; the flow guide plate is arranged downwardly inclined in the direction close to the flow guide port, and the flow guide plate is provided with a limiting plate extending towards the liquid storage chamber and used for limiting the mesh plate assembly in the circumferential direction outside the flow guide port.

[0010] By adopting the above technical scheme, when the brake oil enters the flow guide chamber through the liquid return port, it quickly flows to the flow guide port along the flow guide plate, and the inclined arrangement of the flow guide plate helps to improve the flow rate of the brake oil; the square cross section of the flow guide port helps to improve the adaptability to the mesh plate assembly and helps to install and move the mesh plate assembly; the limiting plate can limit the mesh plate assembly in the circumferential direction, which helps to reduce the risk of deviation of the mesh plate assembly during vertical lifting under the drive of the drive assembly, thereby helping to improve the operation stability of the filtering mechanism.

[0011] Optionally, the mesh plate assembly comprises a mounting bracket, a filter screen arranged on the top of the mounting bracket, a sealing ring arranged on the outer edge of the filter screen, and a flow guide baffle mounted on both sides of the mounting bracket and extending away from the flow guide chamber; the mounting bracket has a mounting seat in the middle, and the filter screen has a mounting groove in the middle matched with the mounting seat.

[0012] By adopting the technical scheme, the specific structure of the screen plate assembly is disclosed, the combination of the mounting bracket, the filter screen, the sealing ring and the flow guide baffle is used to make the screen plate assembly more stable, the filter screen and the mounting seat are installed through the installation groove, the filter screen is convenient to install and disassemble, which is helpful to clean and replace the filter screen in subsequent use and improve the durability of the screen plate assembly; the sealing ring helps to improve the installation firmness between the filter screen and the mounting seat and reduce the risk of brake oil leakage; the flow guide baffle can cooperate with the limiting plate to guide the brake oil to flow to the liquid storage chamber.

[0013] Optionally, the driving assembly comprises a driving lead screw vertically arranged and connected to one end of the mounting bracket, a lead screw nut mounted on the mounting bracket and matched with the driving lead screw, and a driving motor driving the driving lead screw to rotate; the mounting seat is provided with a mounting hole penetrating the inner and outer surfaces and used for arranging the lead screw nut in the middle part.

[0014] By adopting the technical scheme, the specific structure of the driving assembly is disclosed, the driving motor drives the driving lead screw to rotate, the lead screw nut is matched with the driving lead screw to drive the mounting bracket to move, so that the screen plate assembly can vertically slide in the flow guide chamber, the screen plate assembly can cover and open the flow guide opening, and the brake oil can be filtered and controlled to flow.

[0015] Optionally, the liquid outlet pipe is arranged downwardly inclined away from the liquid outlet, and an included angle between an axis of the liquid outlet pipe and a brake oil liquid surface is 5-15°.

[0016] By adopting the technical scheme, the liquid outlet pipe is arranged downwardly inclined and has an included angle of 5-15° with the brake oil liquid surface, so that the brake oil can flow from the brake oil pot into the brake master cylinder more smoothly by gravity, the adhesion and residue of the brake oil in the liquid outlet pipe are reduced, and the output efficiency of the brake oil is improved.

[0017] Optionally, the brake pot body is provided with a flow guide groove at the front end of the liquid outlet, and the flow guide opening is arranged opposite to the flow guide groove.

[0018] By adopting the technical scheme, the flow guide groove can guide the brake oil to flow to the liquid outlet, so that the brake oil can flow out more smoothly, and the flow guide opening and the flow guide groove are arranged opposite to each other to ensure that the brake oil flowing from the flow guide chamber accurately enters the flow guide groove, and the conveying efficiency of the brake oil is improved.

[0019] Optionally, the brake pot body is provided with a liquid level detection mechanism for detecting the liquid level of the liquid storage chamber; the liquid level detection mechanism comprises a liquid level sensor mounted on the outer end of the brake pot body and a liquid level float floatingly arranged in the liquid storage chamber and cooperating with the liquid level sensor; the liquid level float is provided with a sensing groove at one end close to the liquid level sensor and a trigger arranged in the sensing groove for triggering the liquid level sensor; the brake pot body is provided with a guide plate in the liquid storage chamber for vertical lifting of the liquid level float with the liquid level; the brake pot body is provided with a mounting groove on the outer end side for arranging the liquid level sensor.

[0020] By adopting the above technical scheme, the brake oil pot is provided with a liquid level detection mechanism to detect the liquid level of the liquid storage chamber; the liquid level sensor is mounted on the outer end of the brake pot body, and the liquid level float is floatingly arranged in the liquid storage chamber and cooperates with the liquid level sensor, and the sensing groove of the liquid level float is provided with a trigger; when the liquid level drops to the lowest liquid level line, the trigger can accurately trigger the liquid level sensor to detect the liquid level, thereby helping to ensure that the brake oil in the liquid storage chamber remains within a normal range and helping to realize normal operation of the automobile brake system; the guide plate is provided to ensure that the liquid level float is vertically lifted when the liquid level is lifted, thereby helping to improve the accuracy of liquid level detection.

[0021] Optionally, the guide plate is provided with a first abutting column at the bottom for abutting the upper end surface of the liquid level float; the brake pot body is provided with a second abutting column at the bottom of the liquid storage chamber and arranged opposite to the first abutting column and used for abutting the lower end surface of the liquid level float.

[0022] By adopting the above technical scheme, the first abutting column and the second abutting column can limit the movement range of the liquid level float in the vertical direction, so that the liquid level float is stably lifted with the liquid level; when the brake oil in the liquid storage chamber is at or above the highest liquid level line, the upper end surface of the liquid level float abuts against the lower end surface of the first abutting column; when the brake oil in the liquid storage chamber is at or below the lowest liquid level line, the lower end surface of the liquid level float abuts against the lower end surface of the second abutting column, and at this time, the trigger is arranged opposite to the liquid level sensor, the liquid level sensor is triggered and prompts the operator to supplement the brake oil.

[0023] Optionally, the guide plate is arranged along the outer edge of the liquid level float in the circumferential direction, an inner side wall of the guide plate forms a liquid level chamber, and the guide plate is provided with a liquid inlet on the side wall for communicating the liquid storage chamber and the liquid level chamber.

[0024] By adopting the technical scheme, the guide plate is arranged along the outer periphery of the liquid level float in a circumferential direction, which can guide and limit the movement of the liquid level float, thereby reducing the risk that the liquid level float shakes during the operation of the automobile and affects the accuracy of the liquid level detection; the inner side wall of the guide plate forms a liquid level chamber, and an inlet is formed on the side close to the guide groove, so that the brake oil can smoothly enter the liquid level chamber from the liquid storage chamber, thereby ensuring that the liquid levels of the liquid storage chamber and the liquid level chamber are consistent while reducing the impact of the liquid entering on the liquid level float, which helps to further improve the accuracy of the liquid level detection.

[0025] Optionally, the brake pot body is provided with an annular baffle outside the guide plate in a circumferential direction, a first channel is formed between the annular baffle and the guide plate, and the annular baffle has a first through groove that communicates the first channel and the liquid storage chamber.

[0026] By adopting the technical scheme, the annular baffle and the guide plate form a first channel, and the first through groove communicates the liquid storage chamber, so that the brake oil flows more smoothly between the liquid storage chamber and the first channel, reducing the retention of brake oil in a local area, which helps to improve the flowability and uniformity of the distribution of the brake oil in the brake pot body.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] A brake oil pot includes a brake pot body; during the operation of the automobile braking system, the brake master cylinder applies pressure to cause the brake oil to be compressed and generate a flow demand, the brake oil in the liquid storage chamber flows out through the liquid outlet at the bottom of the brake pot body under the action of the pressure difference, enters the liquid outlet pipe and is transported to the brake master cylinder to perform the braking function; when the brake action is released or the master cylinder pressure is reduced, the brake oil volume recovers or the system needs to return, the return brake oil flows into the guide chamber along the brake pipeline connected to the liquid return port, and flows to the guide port under the guidance of the guide plate; at this time, the mesh plate assembly at the guide port filters the brake oil, intercepts solid impurities and separates the trapped bubbles, the filtered and purified brake oil reenters the liquid storage chamber through the guide port, and the brake oil circulation loop is completed; when the brake oil level in the liquid storage chamber is insufficient, in order to ensure the brake response speed, the drive assembly drives the mesh plate assembly to vertically lift, and a bypass channel is formed at the guide port after the mesh plate is lifted, so that the return brake oil can be directly and quickly injected into the liquid storage chamber without filtering through the mesh plate assembly, thereby realizing emergency supplement of the liquid storage chamber oil amount.

[0029] By using the combination of the mounting bracket, the filter screen, the sealing ring and the guide baffle, the mesh plate assembly structure is more stable, the filter screen is installed in the mounting groove of the mounting seat, and the filter screen is convenient to install and disassemble, which is helpful to clean and replace the filter screen in subsequent use, and helps to improve the durability of the mesh plate assembly.

[0030] By setting the liquid level detection mechanism, the liquid level of the liquid storage chamber can be detected; the liquid level sensor is installed at the outer end of the brake pot body, the liquid level float is arranged in the liquid storage chamber and cooperates with the liquid level sensor, and a trigger is arranged in the sensing groove of the liquid level float; when the liquid level drops to the lowest liquid level line, the trigger can accurately trigger the liquid level sensor to detect the liquid level, thereby helping to ensure that the brake oil in the liquid storage chamber remains within the normal range, and helping to realize the normal work of the automobile brake system; the setting of the guide plate can ensure that the liquid level float rises vertically when the liquid level rises, thereby helping to improve the accuracy of the liquid level detection. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a structural schematic diagram of the brake oil pot in the embodiment of the present application.

[0032] Figure 2 is a sectional view of the brake pot body along the direction parallel to the liquid outlet direction in the embodiment of the present application.

[0033] Figure 3 is a sectional view of the filtering mechanism in the embodiment of the present application.

[0034] Figure 4 is a sectional view of the mesh plate assembly in the embodiment of the present application.

[0035] Figure 5 is a structural schematic diagram of the mounting bracket in the embodiment of the present application.

[0036] Figure 6 is Figure 3 is a cooperation schematic diagram of the platform and the end cover arranged at A.

[0037] Figure 7 is a cooperation schematic diagram of the liquid level sensor and the liquid level float in the embodiment of the present application.

[0038] Figure 8 is a structural schematic diagram of the lower shell in the embodiment of the present application.

[0039] Explanation of reference numerals in the attached drawings: 1. Brake reservoir body; 11. Upper housing; 111. Mounting panel; 112. Flow guide plate; 1121. Flow guide port; 1122. Limiting plate; 1123. First abutment post; 113. Return port; 114. Injection port; 115. Arrangement platform; 1151. Locking linkage; 1152. Locking hook; 116. Arrangement end cap; 1161. Locking slot; 12. Lower housing; 121. Outlet; 122. Outlet pipe; 123. Flow guide groove; 124. Second abutment post; 125. Elastic locking element; 1251. Linkage rod; 1252. Hook head; 126. Arrangement groove; 13. Flow guide chamber; 14. Storage chamber; 15. Guide plate; 151. Limiting protrusion. 152. Liquid inlet; 16. Liquid level chamber; 17. Annular baffle; 171. First through groove; 172. Second through groove; 18. First channel; 2. Filtering mechanism; 21. Mesh assembly; 211. Mounting bracket; 2111. Outer frame; 2112. Mounting base; 21121. Mounting hole; 2113. Connecting rod; 212. Filter screen; 2121. Mounting groove; 213. Sealing ring; 214. Flow guide baffle; 22. Drive assembly; 221. Drive screw; 222. Screw nut; 223. Drive motor; 224. Gear; 3. Liquid level detection mechanism; 31. Liquid level sensor; 311. Locking groove; 32. Liquid level float; 321. Sensing groove; 322. Trigger. Detailed Implementation

[0040] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0041] This application discloses a brake fluid reservoir. (Refer to...) Figure 1 and Figure 2 The brake fluid reservoir includes a reservoir body 1. The reservoir body 1 includes an upper housing 11 and a lower housing 12. An inclined mounting panel 111 is provided on the top of the upper housing 11. A guide plate 112 is provided on the upper housing 11, and a guide chamber 13 is provided on the side of the guide plate 112 facing the mounting panel 111. A reservoir chamber 14 for storing brake fluid is formed between the upper housing 11 and the lower housing 12 on the side of the upper housing 11 away from the mounting panel 111. The mounting panel 111 has two return ports 113 that communicate with the guide chamber 13 and are used for the arrangement of vehicle brake lines. The return ports 113 are located on the side of the mounting panel 111 with a lower relative height. The mounting panel 111 also has an injection port 114 for adding fluid to the reservoir chamber 14. In this embodiment, the axes of the return ports 113 and the injection ports 114 are arranged perpendicular to the length direction of the mounting panel 111.

[0042] Reference Figure 1 and Figure 2The bottom of the lower shell 12 is provided with a liquid outlet 121, and an outlet pipe 122 connected with the automobile brake master cylinder is arranged at the outer end of the liquid outlet 121. The outlet pipe 122 is arranged obliquely downward along the direction away from the liquid outlet 121. In the embodiment, the angle between the axis of the outlet pipe 122 and the brake oil surface is 10°, so that the brake oil can flow more smoothly from the brake oil canister into the brake master cylinder under the action of gravity, and the adhesion and residue of the brake oil in the outlet pipe 122 are reduced, which helps to improve the output efficiency of the brake oil. The lower shell 12 is provided with a flow guide groove 123 at the front end of the liquid outlet 121, and the bottom surface of the flow guide groove 123 is arranged obliquely downward along the direction close to the liquid outlet 121.

[0043] Referring to Figure 2 The flow guide plate 112 has a flow guide opening 1121 penetrating the inner and outer surfaces and used for connecting the liquid storage chamber 14 and the flow guide chamber 13. The flow guide opening 1121 is arranged opposite to the flow guide groove 123. The flow guide opening 1121 is square in the cross section perpendicular to the sliding direction of the screen plate assembly 21. The flow guide plate 112 is arranged obliquely downward along the direction close to the flow guide opening 1121, which improves the flow rate of the brake oil, so that the brake oil entering the flow guide chamber 13 through the liquid return port 113 can quickly flow to the flow guide opening 1121 along the flow guide plate 112. The flow guide plate 112 is provided with a limiting plate 1122 extending toward the liquid storage chamber 14 and used for limiting the circumferential position of the screen plate assembly 21 at the outer circumferential side of the flow guide opening 1121.

[0044] Referring to Figure 3 and Figure 4 The upper shell 11 is provided with a filtering mechanism 2 matched with the flow guide opening 1121. The filtering mechanism 2 includes a screen plate assembly 21 arranged vertically and slidably in the flow guide opening 1121, and a driving assembly 22 driving the screen plate assembly 21 to slide. The screen plate assembly 21 includes a mounting bracket 211, a filter screen 212 arranged at the top of the mounting bracket 211, a sealing ring 213 arranged at the outer circumferential side of the filter screen 212, and a flow guide baffle 214 mounted on both sides of the mounting bracket 211 and extending away from the flow guide chamber 13. In the embodiment, the filter screen 212 adopts a metal screen plate with a hole diameter of 1 mm, which helps to filter the solid particles and large bubbles in the brake oil. The sealing ring 213 is made of rubber material, which helps to improve the mounting firmness between the filter screen 212 and the mounting seat 2112, and reduces the risk of brake oil leakage. The flow guide baffle 214 can cooperate with the limiting plate 1122 at the lower end of the flow guide opening 1121 to guide the brake oil to flow into the liquid storage chamber 14.

[0045] Referring to Figure 4 and Figure 5The mounting bracket 211 comprises an outer frame 2111, a mounting seat 2112, and a connecting rod 2113 for connecting the outer frame 2111 and the mounting seat 2112. The filter screen 212 is provided with a mounting groove 2121 for arranging the mounting seat 2112. The filter screen 212 is mounted with the mounting seat 2112 through the mounting groove 2121, facilitating the mounting and dismounting of the filter screen 212, helping to clean and replace the filter screen 212 in subsequent use, and helping to improve the durability of the screen assembly 21. The outer frame 2111 is a square frame with an outer edge arranged in abutment with the limiting plate 1122, the mounting seat 2112 is circular in the cross section perpendicular to the moving direction, and the geometric center of the outer frame 2111 is arranged in coincidence with the axis of the mounting seat 2112.

[0046] With reference to Figure 3 and Figure 4 The drive assembly 22 comprises a drive lead screw 221 vertically arranged and connected to one end of the mounting bracket 211, a lead screw nut 222 mounted on the mounting bracket 211 and adapted to the drive lead screw 221, and a drive motor 223 for driving the drive lead screw 221 to rotate. The drive lead screw 221 and the drive motor 223 are drivingly connected through a gear 224. The mounting seat 2112 is provided with a mounting hole 21121 penetrating the inner and outer surfaces and arranged for the lead screw nut 222. The drive lead screw 221 is driven to rotate by the drive motor 223, and the mounting bracket 211 is moved by the lead screw nut 222 adapted to the drive lead screw 221, so that the screen assembly 21 can vertically slide in the flow guide chamber 13, realizing the closing and opening of the screen assembly 21 to the flow guide port 1121, and helping to filter and control the flow of the brake oil.

[0047] With reference to Figure 3 and Figure 6 The upper shell 11 is provided with an arrangement platform 115 for arranging the drive motor 223, and is provided with an arrangement end cover 116 for closing the drive motor 223 at the arrangement platform 115. The arrangement platform 115 and the arrangement end cover 116 are locked by clamping. The top surface of the arrangement platform 115 is provided with a locking link 1151 extending vertically upward and having elasticity at both ends of the drive motor 223, and the upper end of the locking link 1151 is provided with a locking clamping hook 1152. The arrangement end cover 116 is provided with a locking clamping groove 1161 for locking the locking clamping hook 1152 at the side wall.

[0048] With reference to Figure 7, the brake pot 1 is provided with a liquid level detection mechanism 3 for detecting the liquid level of the liquid storage chamber 14. The liquid level detection mechanism 3 comprises a liquid level sensor 31 mounted on the outer end of the lower shell 12 and a liquid level float 32 floatingly arranged in the liquid storage chamber 14 and cooperating with the liquid level sensor 31. The liquid level float 32 is provided with a sensing groove 321 at one end close to the liquid level sensor 31 and is provided with a triggering piece 322 in the sensing groove 321 for triggering the liquid level sensor 31. The lower shell 12 is provided with a mounting groove 126 on the outer end side for arranging the liquid level sensor 31. In this embodiment, the liquid level sensor 31 comprises a mounting shell and a Hall element arranged in the mounting shell, and the triggering piece 322 is a magnetic sensing piece matched with the Hall element.

[0049] With reference to Figure 8 , the brake pot 1 is provided with a guide plate 15 in the liquid storage chamber 14 for vertically lifting the liquid level float 32 along the liquid level, the guide plate 15 is arranged along the outer edge of the liquid level float 32 and is formed with a liquid level chamber 16 on the inner side wall of the guide plate 15. The inner side wall of the guide plate 15 is provided with a limiting protrusion 151 arranged vertically and used for limiting the liquid level float 32. The guide plate 15 is provided with a liquid inlet 152 on one side close to the flow guide groove 123 for communicating the liquid storage chamber 14 and the liquid level chamber 16. The brake pot 1 is provided with an annular baffle 17 arranged circumferentially on the outer side of the guide plate 15, and a first channel 18 is formed between the annular baffle 17 and the flow guide plate 112. The annular baffle 17 has a first through groove 171 communicating the first channel 18 and the liquid storage chamber 14. The first through groove 171 is arranged on the same side of the liquid inlet 152. The annular baffle 17 is provided with a second through groove 172 on the side away from the first through groove 171 for communicating the first channel 18 and the liquid storage chamber 14.

[0050] With reference to Figure 7 and Figure 8 , the flow guide plate 112 is provided with a first abutting column 1123 on the bottom for abutting the upper end surface of the liquid level float 32. The lower shell 12 is provided with a second abutting column 124 on the bottom of the liquid level chamber 16 opposite to the first abutting column 1123 and used for abutting the lower end surface of the liquid level float 32. In this embodiment, the first abutting column 1123 and the second abutting column 124 are both cross-shaped along the cross section perpendicular to the length direction. When the liquid level of the liquid storage chamber 14 is at or above the highest liquid level line, the upper end surface of the liquid level float 32 abuts the lower end surface of the first abutting column 1123; when the liquid level of the liquid storage chamber 14 is at or below the lowest liquid level line, the lower end surface of the liquid level float 32 abuts the upper end surface of the second abutting column 124, at this time the triggering piece 322 of the liquid level float 32 is opposite to the liquid level sensor 31, and the liquid level sensor 31 is triggered.

[0051] With reference to Figure 1 and Figure 8The lower shell 12 is provided with elastic locking members 125 for clamping arrangement of the liquid level sensor 31 at the lower end of the slot of the induction groove 321. The elastic locking members 125 include a connecting rod 1251 connected to the lower shell 12 and having elasticity, and a clamping hook 1252 arranged at the movable end of the connecting rod 1251. The number of the elastic locking members 125 is two and symmetrically arranged along the length direction of the connecting rod 1251, and the liquid level sensor 31 has locking grooves 311 for arrangement of the two connecting rods 1251.

[0052] The implementation principle of the brake oil pot is as follows: during the operation of the automobile brake system, the pressure applied by the brake master cylinder causes the brake oil to be compressed and flow demand to be generated, the brake oil in the liquid storage chamber 14 flows out through the liquid outlet 121 at the bottom of the brake pot body 1 under the action of the pressure difference, enters the liquid outlet pipe 122 and is transported to the brake master cylinder to perform the brake function; when the brake action is released or the master cylinder pressure is reduced, the brake oil volume recovers or the system needs to return flow, the return flow of the brake oil flows into the flow guide chamber 13 along the brake pipeline connected to the liquid return port 113, and under the guidance of the flow guide plate 112, flows to the flow guide port 1121, at this time, the mesh plate assembly 21 located at the flow guide port 1121 filters the brake oil, intercepts solid impurities and separates the trapped bubbles, and the filtered and purified brake oil is recombined into the liquid storage chamber 14 through the flow guide port 1121, completing the brake oil circulation loop; when the liquid level of the brake oil in the liquid storage chamber 14 is insufficient, in order to ensure the brake response speed, the driving assembly 22 drives the mesh plate assembly 21 to vertically lift up, the lower end of the flow guide baffle 214 is aligned with the upper edge of the flow guide port 1121 after the mesh plate is lifted up, and a bypass channel is formed at the flow guide port 1121, so that the return flow of the brake oil can be directly and quickly injected into the liquid storage chamber 14 without filtering through the mesh plate assembly 21, realizing emergency supplement of the oil amount of the liquid storage chamber 14.

[0053] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A brake reservoir characterized by, The brake pot (1) is internally formed with a liquid storage chamber (14) for storing brake oil and a flow guide chamber (13) arranged on the upper side of the liquid storage chamber (14), and is provided with a flow guide plate (112) for separating the liquid storage chamber (14) and the flow guide chamber (13); the top of the brake pot (1) is provided with a liquid return port (113) in communication with the flow guide chamber (13) and used for arranging the automobile brake pipeline, and a liquid injection port (114) used for adding liquid to the liquid storage chamber (14); the bottom of the brake pot (1) is provided with a liquid outlet (121) and an outlet pipe (122) connected with the automobile brake master cylinder at the outer end of the liquid outlet (121); the flow guide plate (112) has a flow guide port (1121) penetrating the inner and outer surfaces and used for communicating the liquid storage chamber (14) and the flow guide chamber (13), and the brake pot (1) is provided with a filter mechanism (2) in the flow guide chamber (13) for covering the flow guide port (1121); the filter mechanism (2) comprises a screen plate assembly (21) vertically slidingly arranged in the flow guide port (1121) and a drive assembly (22) driving the screen plate assembly (21) to move; The flow guide port (1121) is square in cross section perpendicular to the sliding direction of the screen plate assembly (21); the flow guide plate (112) is arranged downwardly inclined in the direction close to the flow guide port (1121), and the flow guide plate (112) is provided with a limiting plate (1122) extending toward the liquid storage chamber (14) and used for limiting the screen plate assembly (21) in the circumferential direction at the outer side of the flow guide port (1121); The screen plate assembly (21) comprises a mounting bracket (211), a filter screen (212) arranged on the top of the mounting bracket (211), a sealing ring (213) arranged on the outer side of the filter screen (212), and flow guide baffles (214) mounted on both sides of the mounting bracket (211) and extending away from the flow guide chamber (13); the mounting bracket (211) has a mounting seat (2112) in the middle, and the filter screen (212) has a mounting groove (2121) in the middle matched with the mounting seat (2112); The drive assembly (22) comprises a drive lead screw (221) vertically arranged and connected at one end to the mounting bracket (211), a lead screw nut (222) mounted on the mounting bracket (211) and matched with the drive lead screw (221), and a drive motor (223) driving the drive lead screw (221) to rotate; the mounting seat (2112) is provided with a mounting hole (21121) penetrating the inner and outer surfaces and used for arranging the lead screw nut (222) in the middle.

2. A brake reservoir as defined in claim 1, wherein The outlet pipe (122) is arranged downwardly inclined in the direction away from the liquid outlet (121), and the angle between the axis of the outlet pipe (122) and the brake oil liquid level is 5-15°.

3. The brake reservoir of claim 1 wherein, The brake pot body (1) is provided with a flow guide groove (123) at the front end of the liquid outlet (121), and the flow guide opening (1121) is arranged opposite to the flow guide groove (123).

4. The brake reservoir of claim 1 wherein, The brake pot body (1) is provided with a liquid level detection mechanism (3) for detecting the liquid level of the liquid storage chamber (14); the liquid level detection mechanism (3) comprises a liquid level sensor (31) mounted on the outer end of the brake pot body (1) and a liquid level float (32) floatingly arranged in the liquid storage chamber (14) and cooperating with the liquid level sensor (31); the liquid level float (32) is provided with a sensing groove (321) at one end close to the liquid level sensor (31) and is provided with a trigger piece (322) in the sensing groove (321) for triggering the liquid level sensor (31); the brake pot body (1) is provided with a guide plate (15) in the liquid storage chamber (14) for vertical lifting of the liquid level float (32) with the liquid level; the brake pot body (1) is provided with a arrangement groove (126) on the outer end side for arranging the liquid level sensor (31).

5. A brake reservoir as defined in claim 4, wherein The bottom of the flow guide plate (112) is provided with a first abutting column (1123) for abutting the upper end surface of the liquid level float (32); the brake pot body (1) is provided with a second abutting column (124) arranged opposite to the first abutting column (1123) and used for abutting the lower end surface of the liquid level float (32) at the bottom of the liquid storage chamber (14).

6. A brake reservoir as defined in claim 5, wherein The flow guide plate (112) is arranged along the outer edge of the liquid level float (32) in a circumferential direction, an inner side wall of the guide plate (15) is formed with a liquid level chamber (16), and the guide plate (15) is provided with a liquid inlet (152) on the side wall for communicating the liquid storage chamber (14) and the liquid level chamber (16).

7. A brake reservoir as defined in claim 6, wherein The brake pot body (1) is provided with an annular baffle (17) circumferentially arranged outside the guide plate (15), a first channel (18) is formed between the annular baffle (17) and the flow guide plate (112), and the annular baffle (17) has a first through groove (171) communicating the first channel (18) and the liquid storage chamber (14).

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