Brake oil tank and control method

Abstract

The present application relates to the technical field of brake accessories, and provides a brake oil pot and a control method, wherein the brake oil pot comprises an upper cover, a shell, a guide tube, a liquid level sensor and a first pressure switch; the upper cover is provided with a liquid inlet for brake fluid to enter, the guide tube is installed on the upper cover and communicated with the liquid inlet; the shell provides brake fluid storage, the upper cover is connected to the top of the shell, and a partition is provided inside the shell; the partition divides the internal space of the shell into a liquid storage chamber and a liquid replenishing chamber, an infusion piece is provided between the liquid storage chamber and the liquid replenishing chamber, and the liquid replenishing chamber is communicated with the liquid storage chamber through the infusion piece, and a plurality of liquid outlets connected to an external liquid outlet pipe are provided at the bottom of the liquid storage chamber. The present application has the effect of automatically cleaning impurities.

Description

Technical Field

[0001] The present application relates to the technical field of brake accessories, and in particular to a brake oil tank and a control method thereof. Background Art

[0002] The brake oil pot is used to hold brake fluid and is used in the vehicle's braking system. It is usually installed on the rear side of the engine compartment. The brake oil pot includes a pot body consisting of a shell and a cover. A liquid inlet is provided at the upper end of the pot body, and a liquid outlet is provided at the lower end of the pot body. A liquid level sensor is inserted into the pot body to sense the amount of brake fluid in the pot.

[0003] When the brake fluid in a general brake oil tank is used for a long time at high temperature, floating impurities will be produced. The impurities will gradually reduce the performance of the vehicle's braking system. The brake oil tank needs to be cleaned regularly to remove internal impurities. However, frequent cleaning or cleaning of the brake oil tank requires disassembly and cleaning of the oil tank, which is troublesome to handle and affects the user experience. Summary of the invention

[0004] In order to improve the above-mentioned problems, the present application provides a brake oil tank and a control method.

[0005] The present application provides a brake oil tank and a control method using the following technical solutions:

[0006] A brake oil pot, comprising an upper cover, a shell, a guide tube, a liquid level sensor and a first pressure switch; the upper cover is provided with a liquid inlet for brake fluid to enter, the guide tube is installed on the upper cover and communicated with the liquid inlet; the shell provides brake fluid storage, the upper cover is connected to the top of the shell, a partition is provided inside the shell; the partition divides the internal space of the shell into a liquid storage chamber and a liquid replenishing chamber, an infusion piece is provided between the liquid storage chamber and the liquid replenishing chamber, the liquid replenishing chamber is communicated with the liquid storage chamber through the infusion piece, and a liquid outlet is provided at the bottom of the liquid storage chamber; the top of the shell is also provided with a An impurity discharge channel, a discharge pipe is provided at the end of the impurity discharge channel; the guide tube extends into the fluid storage chamber, the liquid level sensor is sleeved on the guide tube and slides along the guide tube; the first pressure switch is embedded in the bottom of the shell and is electrically connected to the infusion piece; after the use of the brake fluid in the fluid storage chamber is reduced, the liquid level sensor contacts the first pressure switch as the liquid level decreases, the first pressure switch opens the infusion piece, the brake fluid in the fluid replenishment chamber enters the fluid storage chamber, and the liquid level sensor floats, and the impurities rise with the brake fluid level, flow to the impurity discharge channel, and are discharged from the discharge pipe.

[0007] By adopting the above technical scheme, the shell is divided into a storage chamber and a replenishing chamber by using a spacer, so that after the brake fluid is reduced with use, the infusion piece is opened according to the contact between the liquid level sensor and the first pressure switch, so that the brake fluid in the replenishing chamber flows to the storage chamber, and the impurities in the storage chamber due to long-term use under high temperature conditions float to the impurity discharge channel along with the replenishment of the brake fluid, and are discharged by the discharge pipe. By regularly replenishing the brake fluid to the storage chamber through the replenishing chamber and the infusion piece, the impurities can be discharged regularly, without the need to frequently clean the brake oil pot, thereby improving the comfort experience of use.

[0008] Optionally, the single liquid inlet, the guide tube and the liquid level sensor form a detection group, and at least one detection group is provided.

[0009] By adopting the above technical solution, at least one detection group can detect the liquid level data. When more than one detection group is set, multiple groups of liquid level data can be obtained. By comparing and integrating the multiple groups of liquid level data, the liquid level data is made more accurate, thereby improving the precision of the automobile braking system.

[0010] Optionally, a plurality of drainage ports are provided at the bottom of the guide tube.

[0011] By adopting the above technical solution, a plurality of drain ports are provided, and the brake fluid flows out from the drain ports to fill the liquid storage chamber and the liquid replenishing chamber in the shell, so that the delivery of the brake fluid is more stable.

[0012] Optionally, a second pressure switch is provided at the bottom of the upper cover body.

[0013] By adopting the above technical solution, the brake fluid enters the fluid storage chamber, causing the liquid level to gradually rise. The buoyancy will cause the liquid level sensor to apply pressure to the second pressure switch. The second pressure switch sends an electrical signal to the infusion piece to close the infusion piece. The second pressure switch is used to close the infusion piece, which is more accurate and can accurately determine the amount of brake fluid to be replenished and the liquid level height.

[0014] Optionally, an infusion tube is provided on the liquid inlet, and the infusion tube passes through the liquid inlet and extends into the guide tube.

[0015] By adopting the above technical solution, the infusion tube can prevent the brake fluid from dripping onto the outer upper cover body when the brake fluid is replenished and transported, thereby avoiding the loss of brake fluid. At the same time, the infusion tube is extended into the guide tube, which can avoid the position of the infusion tube from being offset, so that the position of the infusion tube is fixed and the stability of the brake fluid delivery is ensured.

[0016] Optionally, the upper cover body is provided with a limit buckle, and the limit buckle is clamped with the infusion tube.

[0017] By adopting the above technical solution, the limiting buckle can fix the infusion tube as a whole on the upper cover body, stabilize the infusion tube, and avoid bumps or vibrations during the movement of the car, which may cause the position of the infusion tube to shift.

[0018] Optionally, a pressure contact portion is provided in the infusion tube, and the pressure contact portion slides along the infusion tube.

[0019] By adopting the above technical solution, the brake fluid applies pressure to the pressure contact part, so that the pressure contact part applies pressure to the first pressure switch. When replenishing the brake fluid, it is convenient to open the infusion part to connect the fluid replenishing chamber with the fluid storage chamber. There is no need to remotely control the infusion part, thereby improving the convenience of brake fluid replenishment.

[0020] Optionally, a limiting groove is provided in the infusion tube, and the pressure contact portion is slidably connected to the limiting groove.

[0021] By adopting the above technical solution, the pressure contact part moves along the limiting groove and cannot rotate or separate from the inside of the infusion tube, thereby ensuring that the pressure contact part will not separate from the infusion tube when pressure is applied to the first pressure switch.

[0022] Optionally, the impurity discharge channel has an inclination.

[0023] By adopting the above technical solution, the inclination of the impurity discharge channel can make the impurities discharge more fully and completely, and can stably reduce the impurities mixed in the brake fluid.

[0024] A control method, applied to a brake oil tank, includes a controller and an extraction pump in a vehicle braking system, and includes the following steps:

[0025] Setting the opening and closing flow of the infusion component, the delayed closing time of the first pressure switch and the unit time for replenishing the brake fluid;

[0026] Transporting brake fluid, transporting the brake fluid to the fluid storage chamber through the fluid inlet and the guide tube;

[0027] When the brake fluid is gradually reduced with use, the liquid level sensor contacts the first pressure switch, and the first pressure switch sends an opening signal to the controller or directly to the infusion component, and the infusion component opens, so that the fluid replenishment chamber is connected with the fluid storage chamber, and the brake fluid in the fluid replenishment chamber flows into the fluid storage chamber, so that the liquid level in the fluid storage chamber rises, and simultaneously the impurities on the surface of the brake fluid float to the impurity discharge channel;

[0028] According to the delayed closing time set by the first pressure switch, when the time is reached, the first pressure switch sends a closing signal to the controller or directly to the infusion component, and the infusion component is closed, so that the infusion chamber and the storage chamber are disconnected;

[0029] When the infusion part is closed, a closing signal is sent to the controller, and the controller sends an extraction instruction to the extraction pump in the automobile brake system, so that the extraction pump discharges part of the brake fluid and impurities in the impurity discharge channel through the discharge pipe, and at the same time gradually reduces the liquid level, so that the liquid level sensor is separated from the second pressure switch, and the second pressure switch sends a separation signal to the controller, and the controller sends a stop instruction to the extraction pump, and the extraction pump responds to the instruction and stops extracting impurities;

[0030] When the brake fluid is used up, the liquid level sensor contacts the first pressure switch and opens the infusion piece. No brake fluid flows out of the fluid replenishing chamber within a unit time. The liquid level sensor still presses the first pressure switch, and the first pressure switch sends a replenishment signal to the controller, which prompts the user to replenish the brake fluid.

[0031] By adopting the above technical solution and the control method, the brake fluid in the fluid replenishing chamber and the fluid storage chamber can be effectively connected and replenished, and at the same time, impurities retained after long-term use can be conveniently removed. When there is no brake fluid in both the fluid replenishing chamber and the fluid storage chamber, it is convenient to remind the user to replenish.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. The housing is divided into a liquid storage chamber and a liquid replenishing chamber by using a partition, so that when the brake fluid is reduced with use, the infusion component is opened according to the contact between the liquid level sensor and the first pressure switch, so that the brake fluid in the liquid replenishing chamber flows to the liquid storage chamber, and the impurities in the liquid storage chamber generated by long-term use under high temperature conditions float to the impurity discharge channel along with the replenishment of the brake fluid, and are discharged by the discharge pipe. By regularly replenishing the brake fluid to the liquid storage chamber through the liquid replenishing chamber and the infusion component, the impurities can be discharged regularly, without the need to frequently clean the brake oil pot, thereby improving the comfort experience of use;

[0034] 2. At least one detection group can detect the liquid level data. When more than one detection group is set, multiple sets of liquid level data can be obtained. By comparing and integrating multiple sets of liquid level data, the liquid level data is more accurate, thereby improving the precision of the automobile braking system.

[0035] 3. Several drain ports are provided, and the brake fluid flows out from the drain ports to fill the liquid storage chamber and the liquid replenishing chamber in the housing, so that the delivery of the brake fluid is more stable;

[0036] 4. The brake fluid enters the fluid storage chamber, causing the fluid level to gradually rise. The buoyancy causes the fluid level sensor to apply pressure to the second pressure switch. The second pressure switch sends an electrical signal to the infusion component to close the infusion component. The second pressure switch is used to close the infusion component, which is more accurate and can accurately determine the amount of brake fluid to be replenished and the fluid level height. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1This is a schematic diagram of a first explosion structure of a brake oil pot in one embodiment of the present application;

[0038] Figure 2 is a schematic diagram of a top view of a housing in some embodiments of the present application;

[0039] Figure 3 is a second structural schematic diagram of a brake oil tank in some embodiments of the present application;

[0040] Figure 4 is a schematic diagram of the three-dimensional structure of a brake oil tank in some embodiments of the present application;

[0041] Figure 5 is a schematic diagram of the three-dimensional structure of the infusion tube in some embodiments of the present application;

[0042] Figure 6 is a schematic diagram of a partial cross-sectional structure of an infusion tube in some embodiments of the present application;

[0043] The marks in the accompanying drawings are: 1. upper cover body, 11. liquid inlet, 12. second pressure switch, 13. infusion tube, 131. limit groove, 14. limit buckle, 15. pressure contact part, 2. shell, 21. spacer, 22. liquid storage chamber, 23. liquid replenishing chamber, 24. impurity discharge channel, 25. discharge pipe, 26. liquid outlet, 3. guide tube, 31. discharge port, 4. liquid level sensor, 5. first pressure switch, 6. infusion part. DETAILED DESCRIPTION

[0044] The following is an explanation of the implementation of the present application by specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the information disclosed in the present application. The present application can also be implemented or applied through other different specific implementations, and the details in the present application can also be modified or changed in various ways according to different viewpoints and application systems without departing from the spirit of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0045] The following is a detailed description of the embodiments of the present application with reference to the accompanying drawings so that those skilled in the art can easily implement the present application. The present application can be embodied in a variety of different forms and is not limited to the embodiments described herein.

[0046] In the representations of the present application, the representations with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the represented specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples represented in the present application and the features of the different embodiments or examples, unless they contradict each other.

[0047] In addition, the terms "first" and "second" are only used to indicate the target, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the representation of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] Throughout the specification, when a device is said to be "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" by placing other elements therebetween. In addition, when a device is said to "include" a certain component, unless otherwise stated, it does not exclude other components, but means that other components may be included.

[0049] The following is combined with Figure 1 -Attached Figure 6 , further details of this application are given.

[0050] The embodiments of the present application disclose a brake oil tank and a control method.

[0051] A brake oil tank is used in the braking system of an automobile. Its main function is to store brake fluid to ensure that the braking system has sufficient brake fluid supply when needed.

[0052] refer to Figure 1 and Figure 2 As shown, the brake oil pot includes an upper cover body 1, a shell body 2, a guide tube 3, a liquid level sensor 4 and a first pressure switch 5; the upper cover body 1 is provided with a liquid inlet 11 for the brake fluid to enter, the guide tube 3 is installed at the bottom of the upper cover body 1 and is connected with the liquid inlet 11, the brake fluid can enter the guide tube 3 from the liquid inlet 11, and the brake fluid is transported through the guide tube 3.

[0053] The shell 2 provides brake fluid storage, and the upper cover body 1 is connected to the top of the shell 2. After the upper cover body 1 and the shell 2 are installed, a closed storage space is formed inside. After the brake fluid enters from the fluid inlet 11, it is transported to the shell 2 through the guide tube 3, so that the shell 2 can temporarily store the brake fluid. A partition part 21 is provided in the shell 2 to separate the storage space in the shell 2. The partition part 21 can adopt a plurality of partition plates or partition frames.

[0054] The spacer 21 divides the internal space of the shell 2 into a liquid storage chamber 22 and a liquid replenishing chamber 23. The liquid replenishing chamber 23 wraps the liquid storage chamber 22. The liquid storage chamber 22 is located in the middle of the shell 2. An infusion component 6 is provided between the liquid storage chamber 22 and the liquid replenishing chamber 23. The infusion component 6 can adopt an infusion pump or an infusion valve. The liquid replenishing chamber 23 is connected to the liquid storage chamber 22 through the infusion component 6, that is, the infusion pump or the infusion valve is opened so that the liquid storage chamber 22 and the liquid replenishing chamber 23 are connected to each other. The brake fluid in the liquid replenishing chamber 23 can flow into the liquid storage chamber 22 to replenish the brake fluid. A plurality of liquid outlets 26 connected to an external liquid outlet pipe are provided at the bottom of the liquid storage chamber 22. The automobile brake system is connected through the liquid outlet pipe. When the brake fluid is needed, the liquid outlet pipe is opened by the automobile brake system to transport the brake fluid out of the brake oil pot.

[0055] The brake fluid in the liquid storage chamber 22 will produce impurities when used under high temperature for a long time, and an impurity discharge channel 24 is provided on the top of the shell 2 for discharging impurities. A discharge pipe 25 is provided at the end of the impurity discharge channel 24. The impurities can be discharged through the discharge pipe 25 using the impurity discharge channel 24. The discharge pipe 25 can be connected to a discharge pump in the automobile braking system, and the discharge pump can provide negative pressure to draw impurities out of the brake oil tank.

[0056] The guide tube 3 extends into the liquid storage chamber 22, the liquid level sensor 4 is sleeved on the guide tube 3 and slides along the guide tube 3. The liquid level sensor 4 can adopt a float type or a float ball type. The liquid level sensor 4 can float along the surface of the brake fluid according to the amount of brake fluid. The liquid level sensor 4 is sleeved on the guide tube 3, so the position of the liquid level sensor 4 is fixed and can only slide up and down along the guide tube 3, so as to prevent the liquid level sensor 4 from floating and deflecting randomly due to bumps and vibrations during driving of the car, thereby affecting the accuracy of the data of the liquid level detection.

[0057] The first pressure switch 5 is embedded in the bottom of the shell 2 and is electrically connected to the infusion piece 6. When the brake fluid in the liquid storage chamber 22 is gradually reduced with use, the liquid level sensor 4 is synchronously lowered with the liquid level until it contacts the first pressure switch 5. After the first pressure switch 5 senses the pressure of the hydraulic sensor, it sends an opening electrical signal to the infusion piece 6, thereby opening the infusion piece 6. It can also send an opening electrical signal to the controller in the automobile braking system, and the controller sends a fluid replenishment instruction to the infusion piece 6, and the infusion piece 6 can be opened.

[0058] Among them, the first pressure switch 5 can be a delay switch, and the delayed closing time, such as 10s, 15s, etc., can be set by the controller in the automobile braking system, so that when the infusion component 6 is opened for a specified time, the first pressure switch 5 is automatically closed, and can also be closed by sending a closing command by the controller.

[0059] After the infusion piece 6 is opened, the brake fluid in the replenishing chamber 23 enters the reservoir chamber 22 for replenishment. As the brake fluid is replenished, the liquid level sensor 4 floats along the guide tube 3. The impurities generated by the brake fluid used for a long time at high temperature rise synchronously with the liquid level of the brake fluid, flow to the impurity discharge channel 24, and are discharged from the discharge pipe 25. The discharge pipe 25 can be externally connected to a recovery box to recycle the impurities. When the discharge pipe 25 is connected to the automobile braking system, it can be drawn by an external discharge pump, thereby achieving the effect of replenishing the brake fluid and discharging the floating impurities.

[0060] Furthermore, a single liquid inlet 11, a guide tube 3 and a liquid level sensor 4 form a detection group, and at least one detection group is set. The detection group can detect the liquid level data. At least one detection group can detect the liquid level data. When more than one detection group is set, multiple groups of liquid level data can be obtained. Based on the comparison and integration of the multiple groups of liquid level data, the liquid level data is more accurate, thereby improving the precision of the automobile braking system. This embodiment takes two groups as an example.

[0061] Among them, a detection group can be set in the fluid replenishing chamber 23, so that when there is no brake fluid in both the fluid replenishing chamber 23 and the fluid storage chamber 22, the automobile braking system alarms to remind the user to replenish the brake fluid.

[0062] If no detection group is set in the fluid replenishing chamber 23, the infusion part 6 is opened, and the liquid level sensor 4 is still in contact with the first pressure switch 5 within a unit time. The liquid level sensor 4 or the first pressure switch 5 sends a signal to replenish brake fluid to the automobile brake system to alarm, reminding the user to replenish brake fluid.

[0063] Further, refer to Figure 1 As shown, a plurality of drain ports 31 are provided at the bottom of the guide tube 3. If there are too many impurities, the brake fluid entering through the guide tube 3 is easily blocked and it is difficult to fully fill the housing 2. Therefore, a plurality of drain ports 31 are provided, and the brake fluid flows out from the drain ports 31 to fill the storage chamber 22 and the replenishing chamber 23 in the housing 2, so that the delivery of the brake fluid is more stable.

[0064] In some embodiments, reference Figure 3As shown, a second pressure switch 12 is provided at the bottom of the upper cover body 1. The second pressure switch 12 is the same type of switch as the first pressure switch 5. The first pressure switch 5 is used to open the infusion piece 6, and the second pressure switch 12 acts to close the infusion piece 6. When the infusion piece 6 is opened, the brake fluid enters the liquid storage chamber 22, so that the liquid level gradually rises and drives the liquid level sensor 4 to rise. When the liquid level sensor 4 rises to the second pressure switch 12 of the upper cover body 1, the buoyancy will cause the liquid level sensor 4 to apply pressure to the second pressure switch 12. The second pressure switch 12 sends an electrical signal to the infusion piece 6 to close the infusion piece 6, or sends an electrical signal to the controller in the automobile braking system, so that the controller sends a closing command to the infusion piece 6, so that the brake fluid in the replenishing chamber 23 no longer flows into the storage chamber.

[0065] Compared with the delayed closing first pressure switch 5 , this method has higher accuracy and can accurately determine the replenishment amount and liquid level of the brake fluid.

[0066] On the other hand, the first pressure switch 5 and the second pressure switch 12 can also be replaced by a liquid level switch. The liquid level switch is a controller that opens the infusion component 6 for discharging or inletting liquid according to the signal output of the liquid level sensor 4 to keep the liquid level constant. If it is a liquid level switch, it is necessary to set the highest liquid level line and the lowest liquid level line that the liquid level sensor 4 needs to reach in advance, and output a switching signal according to the liquid level line to open or close the infusion component 6 through the signal output. Compared with the first pressure switch 5 and the second pressure switch 12, the liquid level switch is more convenient to control the infusion component 6. However, since the car may encounter bumps or ups and downs during driving, causing the brake fluid level line to change, the first pressure switch 5 and the second pressure switch 12 are more accurate.

[0067] In some embodiments, reference Figure 3 and Figure 4 As shown, a liquid infusion tube 13 is provided on the liquid inlet 11, and the liquid infusion tube 13 passes through the liquid inlet 11 and extends into the guide tube 3. The liquid infusion tube 13 extends into the guide tube 3 from the liquid inlet 11. The liquid infusion tube 13 can prevent the brake fluid from dripping onto the outer upper cover 1 when the brake fluid is replenished and transported, thereby avoiding the loss of the brake fluid. At the same time, the liquid infusion tube 13 extends into the guide tube 3, which can avoid the position of the liquid infusion tube 13 from being offset, so that the position of the liquid infusion tube 13 is fixed, thereby ensuring the stability of the brake fluid transportation.

[0068] On the other hand, the number of infusion tubes 13 increases with the number of liquid inlets 11 and guide tubes 3, so the number of infusion tubes 13 can be the same as the number of detection groups. For example, when there are two detection groups, the number of infusion tubes 13 is two groups, which are respectively connected to the two detection groups. When two detection groups and infusion tubes 13 are provided, the function of the infusion tubes 13 may change.

[0069] One of the two groups of infusion tubes 13 can be set to supplement the brake fluid, and the other group can be directly connected to the extraction pump of the automobile braking system to extract the brake fluid from bottom to top to the automobile braking system for application, without the need to transport it through the liquid outlet 26 at the bottom of the shell 2. This method can make the pipeline connection of the brake oil tank more reasonable and more adaptable, and can adapt to the installation space of the engine or brake equipment of different vehicles.

[0070] For further reference, Figure 1 and Figure 4 As shown, the upper cover body 1 is provided with a limiting buckle 14, which is engaged with the infusion tube 13. The infusion tube 13 includes a vertical tube and a horizontal tube, which are fixedly connected to each other and form a vertical angle therebetween. A limiting protrusion extends from the horizontal tube, and the limiting buckle 14 can use the limiting protrusion to clamp the horizontal tube, thereby fixing the infusion tube 13 as a whole on the upper cover body 1, stabilizing the infusion tube 13, and avoiding bumps or vibrations during the movement of the car, which may cause the position of the infusion tube 13 to shift.

[0071] Further, refer to Figure 5 and Figure 6 As shown, a pressure contact portion 15 is provided in the infusion tube 13, and the pressure contact portion 15 slides along the infusion tube 13. When the infusion tube 13 transports the brake fluid, the controller in the automobile brake system can be used to open the infusion component 6, so that the brake fluid can be transported to the fluid replenishing chamber 23 during the transportation process, but the infusion component 6 needs to be manually opened, so the pressure contact portion 15 is provided in the infusion tube 13.

[0072] The pressure touch portion 15 may include a pressure touch ring and a pressure touch plate, which are connected to each other via a connecting frame so that there is a spacing space between the pressure touch ring and the pressure touch plate for the brake fluid to flow out, and the outer diameters of the pressure touch plate and the pressure touch ring match the inner diameter of the infusion tube 13, that is, the outer diameters of the pressure touch plate and the pressure touch ring are less than or equal to the inner diameter of the infusion tube 13, so that the pressure touch ring and the pressure touch plate can both extend into the infusion tube 13 and slide along the inner wall of the infusion tube 13.

[0073] When the infusion tube 13 is transporting brake fluid, the brake fluid flows out directly from the infusion tube 13, and the water pressure dispersion cannot affect the first pressure switch 5, so that the infusion component 6 needs an electrical signal to be remotely opened. After the pressure contact part 15 is set, the water pressure will directly apply pressure to the pressure contact part 15, so that the pressure contact part 15 presses down the first pressure switch 5. The first pressure switch 5 is affected by the pressure contact part 15 to open the infusion component 6, so that the fluid replenishment chamber 23 and the fluid storage chamber 22 are in a connected state. After the fluid replenishment chamber 23 and the fluid storage chamber 22 are filled, the liquid level rises, the liquid level sensor 4 contacts the second pressure switch 12, the infusion component 6 is closed, and the delivery of the brake fluid is stopped at the same time. The pressure contact part 15 loses the influence of the water pressure and releases the contact with the first pressure switch 5.

[0074] The pressure contact portion 15 can be used to conveniently open the infusion component 6 when replenishing the brake fluid, so that the fluid replenishment chamber 23 is connected to the fluid storage chamber 22, without the need to remotely control the infusion component 6, thereby improving the convenience of brake fluid replenishment.

[0075] Further, refer to Figure 6 As shown, a limiting groove 131 is provided in the infusion tube 13, and the pressure contact part 15 is slidably connected to the limiting groove 131. The limiting groove 131 and the mouth of the infusion tube 13 are not in a connected state. A limiting protrusion is provided on the pressure contact ring of the pressure contact part 15. The pressure contact ring and the pressure contact plate both move along the limiting groove 131 through the limiting protrusion and cannot rotate or detach from the inside of the infusion tube 13, thereby ensuring that the pressure contact part 15 will not detach from the infusion tube 13 when pressure is applied to the first pressure switch 5.

[0076] Among them, when several infusion tubes 13 are used to extract brake fluid, the length of the limiting groove 131 is smaller than the length of the connecting frame between the pressure contact ring and the pressure contact plate in the pressure contact part 15, so that when the pressure contact part 15 is affected by the negative pressure of extraction, the pressure contact ring presses against the end of the limiting groove 131 away from the tube mouth, and there is a gap between the pressure contact plate and the tube mouth, and the tube mouth of the infusion tube 13 cannot be completely closed, so that the brake fluid can enter the infusion tube 13 from the gap without affecting the transportation of the brake fluid.

[0077] In some embodiments, reference Figure 1 As shown, the impurity discharge channel 24 has an inclination, and the height of the channel opening can be lower than the height of the discharge pipe 25. After the impurity discharge channel 24 is inclined, the height of the channel opening is lower than the pipe of the discharge pipe 25, so that when the liquid level continues to rise to the discharge pipe 25, the extraction pump external to the discharge pipe 25 extracts impurities on the surface of the brake fluid, and the impurities are affected by the negative pressure of the discharge pipe 25 and move toward the impurity discharge channel 24. The negative pressure causes the impurities to flow along the impurity discharge channel 24. When the liquid level is lower than the impurity discharge channel 24, the remaining impurities adhere to the impurity discharge channel 24, waiting for the next time the liquid level rises for convenient discharge.

[0078] This tilting method can make the impurities discharge more fully and completely, and can stably reduce the impurities mixed in the brake fluid when the automobile brake system needs to use the brake fluid.

[0079] On the other hand, the impurity discharge channel 24 has an inclination, and the height of the channel mouth can be higher than the height of the discharge pipe 25. The inclination is not shown in the figure. When the height of the channel mouth is higher than the height of the discharge pipe 25, the impurities floating on the surface of the brake fluid can flow into the impurity discharge channel 24 according to the rising liquid level after the liquid level flows to the channel mouth, and then flow into the discharge pipe 25. The extraction pump of the automobile brake system does not need to be used. The natural flow can be achieved according to the influence of gravity, and the effect of convenient recovery of brake fluid impurities can also be achieved.

[0080] The present application also provides a control method, which is applied to the brake oil pot in the above embodiment, including a controller in a vehicle braking system, and includes the following steps:

[0081] S100, setting the opening and closing flow rate of the infusion member 6, the delayed closing time of the first pressure switch 5 and the unit time for replenishing the brake fluid;

[0082] S200, delivering brake fluid, delivering the brake fluid to the liquid storage chamber 22 through the liquid inlet 11 and the guide tube 3;

[0083] S210, the controller sends an opening instruction to the infusion member 6, and the infusion member 6 opens in response to the instruction, so that the liquid replenishing chamber 23 is connected with the liquid storage chamber 22 to fill the brake fluid;

[0084] S220, when the infusion tube 13 and the pressure contact part 15 are provided, there is no need to send an opening instruction through the controller, and the brake fluid is directly replenished through the infusion tube 13, and the brake fluid provides pressure to the pressure contact part 15, so that the pressure contact part 15 contacts the first pressure switch 5, and the first pressure switch 5 sends an opening signal to the controller or directly to the infusion part 6, and the infusion part 6 is opened, so that the liquid replenishing chamber 23 is connected with the liquid storage chamber 22 to fill the brake fluid;

[0085] S230, when the second pressure switch 12 is provided, as the liquid level in the housing 2 rises, the liquid level sensor 4 contacts the second pressure switch 12 as the liquid level rises, and the second pressure switch 12 sends a closing signal to the controller or directly to the infusion component 6, and the infusion component 6 is closed, so that the liquid replenishing chamber 23 is disconnected from the liquid storage chamber 22, and at the same time, a liquid full signal is sent to the controller to remind the controller to stop replenishing the brake fluid;

[0086] S300, when the brake fluid is gradually reduced with use, the liquid level sensor 4 contacts the first pressure switch 5, and the first pressure switch 5 sends an opening signal to the controller or directly to the infusion member 6, and the infusion member 6 opens, so that the liquid replenishing chamber 23 is connected with the liquid storage chamber 22, and the brake fluid in the liquid replenishing chamber 23 flows into the liquid storage chamber 22, so that the liquid level in the liquid storage chamber 22 rises, and the impurities on the surface of the brake fluid float to the impurity discharge channel 24 at the same time;

[0087] S310, when the second pressure switch 12 is not provided, according to the delayed closing time set by the first pressure switch 5, when the time is reached, the first pressure switch 5 sends a closing signal to the controller or directly to the infusion component 6, and the infusion component 6 is closed, so that the infusion chamber 23 is disconnected from the liquid storage chamber 22;

[0088] S320, when a second pressure switch 12 is provided, as the liquid level in the shell 2 rises, the liquid level sensor 4 contacts the second pressure switch 12 as the liquid level rises, and the second pressure switch 12 sends a closing signal to the controller or directly to the infusion component 6, and the infusion component 6 is closed.

[0089] S400, when the infusion part 6 is closed, a closing signal is sent to the controller, and the controller sends an extraction instruction to the extraction pump in the automobile braking system, so that the extraction pump uses the discharge pipe 25 to discharge part of the brake fluid and impurities in the impurity discharge channel 24, and at the same time gradually lowers the liquid level, so that the liquid level sensor 4 is separated from the second pressure switch 12, and the second pressure switch 12 sends a separation signal to the controller, and the controller sends a stop instruction to the extraction pump, and the extraction pump responds to the instruction and stops extracting impurities.

[0090] S500. When the brake fluid is used up, the liquid level sensor 4 contacts the first pressure switch 5 and opens the infusion component 6. No brake fluid flows out of the fluid replenishing chamber 23 within a unit time. The liquid level sensor 4 still presses the first pressure switch 5 without the buoyancy of the brake fluid. The first pressure switch 5 sends a replenishment signal to the controller, and the controller prompts the user to replenish the brake fluid.

[0091] Among them, the unit time is the preset time of the first pressure switch 5 preset by the controller. Usually, the unit time is greater than the delayed closing time. For example, if the delayed closing time is 10s and the unit time is 20s, after the unit time, the liquid level sensor 4 still presses the first pressure switch 5, and the first pressure switch 5 sends an electrical signal to the controller.

[0092] S510, if a detection group is provided in the fluid replenishing chamber 23, when the brake fluid in the detection group is used up, the liquid level sensor 4 in the fluid replenishing chamber 23 detects it and directly sends an electrical signal to the controller for fluid replenishment without passing through the first pressure switch 5.

[0093] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A brake oil tank, characterized in that: The invention comprises an upper cover (1), a shell (2), a guide tube (3), a liquid level sensor (4) and a first pressure switch (5); the upper cover (1) is provided with a liquid inlet (11) for the entry of brake fluid, the guide tube (3) is mounted on the upper cover (1) and is in communication with the liquid inlet (11); the shell (2) provides brake fluid storage, the upper cover (1) is connected to the top of the shell (2), and a partition (21) is provided inside the shell (2); the partition (21) divides the internal space of the shell (2) into a liquid storage chamber (22) and a liquid replenishing chamber (23), An infusion piece (6) is provided between the liquid storage chamber (22) and the liquid replenishment chamber (23), and the liquid replenishment chamber (23) is communicated with the liquid storage chamber (22) through the infusion piece (6). A plurality of liquid outlets (26) are provided at the bottom of the liquid storage chamber (22); an impurity discharge channel (24) for discharging impurities is also provided at the top of the shell (2), and a discharge pipe (25) is provided at the end of the impurity discharge channel (24); the guide tube (3) extends into the liquid storage chamber (22), and the liquid level sensor (4) is sleeved on the guide tube (3) and slides along the guide tube (3); The first pressure switch (5) is embedded in the bottom of the housing (2) and is electrically connected to the infusion component (6); after the use of the brake fluid in the storage chamber (22) is reduced, the liquid level sensor (4) contacts the first pressure switch (5) as the liquid level decreases, the first pressure switch (5) opens the infusion component (6), the brake fluid in the replenishing chamber (23) enters the storage chamber (22), and the liquid level sensor (4) floats, and impurities rise with the liquid level of the brake fluid, flow to the impurity discharge channel (24), and are discharged from the discharge pipe (25); the liquid inlet (11) A fluid infusion tube (13) is provided on the guide tube (3), the fluid infusion tube (13) passes through the fluid inlet (11) and extends into the guide tube (3); a pressure contact portion (15) is provided in the fluid infusion tube (13), the pressure contact portion (15) slides along the fluid infusion tube (13); when the fluid infusion tube (13) replenishes brake fluid, the water pressure of the brake fluid applies pressure to the pressure contact portion (15), so that the pressure contact portion (15) applies pressure to the first pressure switch (5) and opens the fluid infusion component (6), and the brake fluid is replenished from the fluid storage chamber (22) to the fluid replenishment chamber (23) through the fluid infusion component (6).

2. A brake oil tank according to claim 1, characterized in that: The single liquid inlet (11), the guide tube (3) and the liquid level sensor (4) form a detection group, and at least one detection group is provided.

3. A brake oil tank according to claim 1, characterized in that: The bottom of the guide tube (3) is provided with a plurality of liquid discharge ports (31).

4. A brake oil tank according to claim 1, characterized in that: A second pressure switch (12) is provided at the bottom of the upper cover body (1).

5. A brake oil tank according to claim 1, characterized in that: The upper cover body (1) is provided with a limit buckle (14), and the limit buckle (14) is clamped with the infusion tube (13).

6. A brake oil tank according to claim 1, characterized in that: A limiting groove (131) is provided in the infusion tube (13), and the pressing portion (15) is slidably connected to the limiting groove (131).

7. A brake oil tank according to claim 1, characterized in that: The impurity discharge passage (24) has an inclination.

8. A control method, characterized in that: The brake oil pot as claimed in any one of claims 1 to 7, further comprising a controller and an extraction pump in a vehicle brake system, comprises the following steps: setting the opening and closing flow of the infusion member (6), the delayed closing time of the first pressure switch (5) and the unit time for replenishing the brake fluid; Transporting brake fluid, transporting the brake fluid to the liquid storage chamber (22) through the liquid inlet (11) and the guide tube (3); When the brake fluid gradually decreases with use, the liquid level sensor (4) contacts the first pressure switch (5), and the first pressure switch (5) sends an opening signal to the controller or directly sends it to the infusion component (6), and the infusion component (6) opens, so that the liquid replenishing chamber (23) is connected with the liquid storage chamber (22), and the brake fluid in the liquid replenishing chamber (23) flows into the liquid storage chamber (22), so that the liquid level in the liquid storage chamber (22) rises, and simultaneously makes the impurities on the surface of the brake fluid float to the impurity discharge channel (24); According to the delayed closing time set by the first pressure switch (5), when the time is reached, the first pressure switch (5) sends a closing signal to the controller or directly to the infusion component (6), and the infusion component (6) is closed, so that the infusion chamber (23) and the liquid storage chamber (22) are disconnected from each other; When the infusion component (6) is closed, a closing signal is sent to the controller, and the controller sends an extraction instruction to the extraction pump in the automobile brake system, so that the extraction pump uses the discharge pipe (25) to discharge part of the brake fluid and impurities in the impurity discharge channel (24), and at the same time gradually reduces the liquid level, so that the liquid level sensor (4) is separated from the second pressure switch (12), and the second pressure switch (12) sends a separation signal to the controller, and the controller sends a stop instruction to the extraction pump, and the extraction pump responds to the instruction and stops extracting impurities; When the brake fluid is used up, the liquid level sensor (4) contacts the first pressure switch (5) and opens the infusion component (6). No brake fluid flows out of the liquid replenishing chamber (23) within a unit time. The liquid level sensor (4) still presses the first pressure switch (5), and the first pressure switch (5) sends a replenishment signal to the controller, which prompts the user to replenish the brake fluid.

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