Brake fluid reservoir and vehicle
By designing a coaxial cylinder and curved flow channel structure in the brake fluid reservoir, the problem of insufficient brake fluid backflow was solved, and the reservoir was rationally arranged and effectively stored in the vehicle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-13
- Publication Date
- 2026-03-17
AI Technical Summary
Existing brake fluid filling equipment has a large difference in backflow height after filling, resulting in insufficient fluid volume in the reservoir, and the space for the reservoir is limited.
Design a brake fluid reservoir, including a reservoir body, a filling tube, and a coaxially arranged cylinder. The cylinder has a filling groove on its side, and a baffle is provided inside the reservoir to form a curved flow channel. The filter element filters the brake fluid and discharges it through the outlet tube, reducing the length of the filling tube and preventing backflow.
It effectively reduces the length of the filler hose, ensures the amount of brake fluid drawn back into the reservoir, meets the reservoir height requirements, and facilitates space arrangement in the vehicle.
Smart Images

Figure CN116373829B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vehicle component technology, and in particular to a brake fluid reservoir and a vehicle. Background Technology
[0002] Currently, due to the characteristics of brake fluid vacuum filling equipment, after automatic filling, backflow occurs as soon as the filling gun is removed from the filling tube. The backflow height varies depending on the filling equipment. Consequently, the reservoir opening is typically quite long. Given the significant backflow height from the filling gun and limited space in the reservoir, the fluid volume after backflow is often insufficient to meet requirements. Summary of the Invention
[0003] In view of the above problems, the present invention is proposed to provide a brake fluid reservoir and vehicle that overcomes or at least partially solves the above problems.
[0004] According to a first aspect of the present invention, the present invention provides a brake fluid reservoir, the reservoir comprising:
[0005] The kettle body has an inner cavity;
[0006] A filling tube is located at the top of the pot body and communicates with the inner cavity;
[0007] A cylinder, located within the inner cavity and coaxially arranged with the filling tube, is provided to introduce brake fluid injected from the filling tube into the cylinder cavity; wherein,
[0008] At least one filling groove is provided on the side of the cylinder near the filling pipe to introduce brake fluid located in the cylinder cavity into the inner cavity.
[0009] Optionally, when the number of filling slots is greater than two, at least two of the filling slots are arranged on a common circle.
[0010] Optionally, the kettle body further includes a first side portion and a second side portion, wherein the first side portion and the second side portion are opposite to each other;
[0011] A first baffle and a second baffle are provided on the first side, and the first and second baffles are respectively fixed to the top and bottom of the kettle body. A third baffle and a fourth baffle are provided on the second side, and the third and fourth baffles are respectively fixed to the top and bottom of the kettle body.
[0012] The first baffle, second baffle, third baffle, and fourth baffle are staggered along the length of the first side portion, forming a curved flow channel for brake fluid flow; wherein,
[0013] The cylinder is disposed between the first baffle and the third baffle, and the liquid storage vessel also includes a liquid outlet pipe, which communicates with the inner cavity located between the fourth baffle and the vessel body.
[0014] Optionally, the distance between the end of the fourth baffle near the first side and the first side forming a channel is less than or equal to the baffle length of the first baffle.
[0015] Optionally, the distance between the end of the second baffle near the second side and the channel formed between the second baffle and the second side is less than or equal to the baffle length of the third baffle.
[0016] Optionally, the liquid storage tank also includes a filter element, which is embedded in both the filling tube and the cylinder, and is coaxially arranged with the cylinder;
[0017] The interior of the filter element is connected to the filling port of the filling tube to filter the brake fluid injected from the filling port of the filling tube and introduce the filtered brake fluid into the cylinder cavity.
[0018] Optionally, a positioning groove is further provided at the center of the bottom wall of the cylindrical cavity, and the bottom of the filter element is embedded in the positioning groove so that the positioning groove limits the position of the filter element.
[0019] Optionally, the reservoir also includes a lid, which is fixed to the filling tube.
[0020] Optionally, a sealing ring is also embedded in the lid to seal the filling port of the filling tube.
[0021] According to a second aspect of the invention, the invention provides a vehicle that includes a brake fluid reservoir as described in any of the preceding claims.
[0022] Compared with existing technologies, this invention includes a reservoir body, a filling tube, and a cylinder. The reservoir body has an inner cavity, the filling tube is located at the top of the reservoir body and communicates with the inner cavity, and the cylinder is located in the inner cavity and coaxially arranged with the filling tube to introduce brake fluid injected from the filling tube into the cylinder cavity. Furthermore, at least one filling groove is provided on the side of the cylinder near the filling tube to introduce brake fluid located in the cylinder cavity into the inner cavity of the reservoir body. Therefore, after filling with the filling gun, the amount of brake fluid drawn back into the reservoir is all the amount of brake fluid located in the cylinder cavity, thus avoiding the problem of brake fluid drawn back from outside the cylinder cavity. While meeting the required reservoir height, this invention also effectively reduces the length of the filling tube, facilitating the space arrangement of the reservoir in the vehicle.
[0023] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description
[0024] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings.
[0025] In the attached diagram:
[0026] Figure 1 This is a schematic diagram of the structure of a brake fluid reservoir provided in an embodiment of the present invention;
[0027] Figure 2 This is a partial three-dimensional structural diagram of a brake fluid reservoir provided in an embodiment of the present invention;
[0028] Figure 3 This is provided by the embodiments of the present invention. Figure 2 A bottom-view diagram of the corresponding three-dimensional structure;
[0029] Figure 4 This is a partial three-dimensional structural diagram of a kettle body provided in an embodiment of the present invention;
[0030] Figure 5 This is provided by the embodiments of the present invention. Figure 4 Top view of the structure corresponding to the middle body of the pot;
[0031] Reference numerals: 1. Pot body; 101. Inner cavity; 102. First side; 103. Second side; 2. Filling pipe; 3. Cylinder; 301. Cylinder cavity; 302. Filling groove; 303. Positioning groove; 4. First baffle; 5. Second baffle; 6. Third baffle; 7. Fourth baffle; 8. Discharge pipe; 9. Filter element; 10. Pot lid; 11. Sealing ring; 12. Mounting lug. Detailed Implementation
[0032] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
[0033] Reference Figure 1-5This invention provides a brake fluid reservoir, which includes a reservoir body 1 and a cylinder 3. The reservoir body 1 has a filling tube 2. The filling tube 2 allows a heating nozzle of a brake fluid filling device to enter the inner cavity 101 of the reservoir body 1, thereby filling the reservoir body 1 with brake fluid. The cylinder 3 is located in the inner cavity 101 of the reservoir body 1 and is coaxially arranged with the filling tube 2. Coaxial arrangement means that their central axes coincide. This coaxial arrangement allows the brake fluid injected from the filling tube 2 to be introduced into the cylindrical cavity 301 of the cylinder 3. Furthermore, at least one filling groove 302 is provided on the side of the cylinder 3 near the filling tube 2. That is, the filling groove 302 is located on the upper side of the cylinder 3. When the brake fluid in the cylindrical cavity 301 reaches the same height as the filling groove 302, the brake fluid in the cylindrical cavity 301 can be introduced into the inner cavity 101 of the reservoir body 1 through the filling groove 302. Therefore, after the filler gun is used to fill the reservoir, the amount of brake fluid drawn back into the reservoir is the amount of brake fluid in the cylinder 301. This avoids the problem of brake fluid drawn back into the cylinder 301. While meeting the reservoir height requirements, it can also effectively reduce the length of the filler tube 2, making it easier to arrange the reservoir in the vehicle.
[0034] In one example, the cylinder 3 extends from the top of the reservoir body 1 into the inner cavity 101 (or can be understood as extending downwards from the filling tube 2). Its combined length with the filling tube 2 can be determined based on the length of the brake fluid filling gun and the backflow height. This ensures that the backflow amount after brake fluid filling is equal to the combined brake fluid height of the cylinder 3 and the filling tube 2. Furthermore, it effectively reduces the upward extension length of the filling tube 2, allowing the embodiment of the invention to be installed in vehicles with limited space, thus expanding the applicability of the reservoir.
[0035] In an optional embodiment of the invention, when the number of filling slots 302 is greater than two, at least two of the filling slots 302 are arranged in a cocircular pattern. This cocircular arrangement can be understood as at least two filling slots 302 being at the same height on the side of the cylinder 3, and at least two filling slots 302 being on the edge of a circle. Those skilled in the art can select the shape of the filling slots 302 according to actual application requirements, and no further limitations are made here. The filling slots 302 are used to connect the cylinder cavity 301 and the inner cavity 101. At least a plurality of filling slots 302 can be distributed at equal angles around the center of the cylinder 3. Furthermore, the filling slots 302 can be flush with the maximum liquid storage height corresponding to the liquid storage vessel.
[0036] In one optional embodiment of the invention, reference is made to... Figure 2As shown, the kettle body 1 may further include a first side portion 102 and a second side portion 103, which are opposite to each other. A first baffle 4 and a second baffle 5 are provided on the first side portion 102, and a third baffle 6 and a fourth baffle 7 are provided on the second side portion 103. The first baffle 4 and the second baffle 5 are spaced apart on the first side portion 102, and the third baffle 6 and the fourth baffle 7 are spaced apart on the second side portion 103. The first baffle 4 and the second baffle 5 are fixed to the top and bottom of the kettle body 1, respectively, and the third baffle 6 and the fourth baffle 7 are fixed to the top and bottom of the kettle body 1, respectively. That is, the first baffle 4 is fixed to the first side 102, top and bottom of the pot body 1; the second baffle 5 is fixed to the first side 102, top and bottom of the pot body 1; the third baffle 6 is fixed to the second side 103, top and bottom of the pot body 1; and the fourth baffle 7 is fixed to the second side 103, top and bottom of the pot body 1.
[0037] Furthermore, referring to Figure 2 As shown, the first baffle 4, the second baffle 5, the third baffle 6, and the fourth baffle 7 are staggered along the length of the first side portion 102, forming a curved flow channel for brake fluid flow. The staggered arrangement can be as follows: the first baffle 4 is located between the third baffle 6 and the fourth baffle 7, and the fourth baffle 7 is located between the first baffle 4 and the second baffle 5. The cylinder 3 is disposed between the first baffle 4 and the third baffle 6. The reservoir may also include an outlet pipe 8, which communicates with the inner cavity 101 located between the fourth baffle 7 and the reservoir body 1. Brake fluid flowing from the cylinder 3 into the inner cavity 101 flows out through the curved flow channel and exits from the outlet pipe 8. The first baffle 4, the second baffle 5, the third baffle 6, and the fourth baffle 7 can serve as reinforcing ribs, improving the structural strength of the reservoir. Furthermore, the curved flow channel formed by the multiple baffles can also shield and buffer the brake fluid in the inner cavity 101, thereby preventing violent sloshing of the brake fluid during vehicle operation.
[0038] In one optional embodiment of the invention, the distance between the end of the fourth baffle 7 near the first side 102 and the channel formed between the fourth baffle 7 and the first side 102 is less than or equal to the baffle length of the first baffle 4. This effectively extends the length of the curved flow channel, thereby further improving the shielding and buffering force when the brake fluid sloshes, and further optimizing the product performance of the brake fluid reservoir.
[0039] Similarly, in another example, the distance between the end of the second baffle 5 near the second side 103 and the channel formed between the second baffle 5 and the second side 103 is less than or equal to the baffle length of the third baffle 6. This allows the extension length of the second baffle 5 and the fourth baffle 7 to be increased as much as possible while ensuring smooth brake fluid flow. This further reduces the sloshing amplitude of the brake fluid in the reservoir during vehicle operation by extending the length of the curved flow channel.
[0040] In one optional embodiment of the invention, reference is made to... Figure 1 As shown, the reservoir may further include a filter element 9, which is embedded within both the filling tube 2 and the cylinder 3, and is coaxially arranged with the cylinder 3. The interior of the filter element 9 is connected to the filling tube 2. Brake fluid entering through the filling tube 2 is pre-filtered into the filter element 9, thereby filtering the brake fluid injected through the filling tube 2. Under the pressure of the filling gun, the filtered brake fluid is introduced into the cavity 301 of the cylinder 3.
[0041] In one optional embodiment of the invention, reference is made to... Figure 1 As shown, a positioning groove 303 is also formed at the center of the bottom wall of the cylindrical cavity 301. The bottom of the filter element 9 is embedded in the positioning groove 303 so that the positioning groove 303 limits the position of the filter element 9. The positioning groove 303 facilitates the rapid assembly of the filter element 9 and improves the structural stability of the filter element 9.
[0042] In one optional embodiment of the invention, the reservoir may further include a lid 10, which is fixed to the filling tube 2. For example, the lid 10 and the reservoir body 1 are threaded together. In another embodiment, a sealing ring 11 is also embedded in the lid 10 to further improve the sealing performance of the filling tube 2.
[0043] In one optional embodiment of the invention, reference is made to... Figure 2 As shown, the vessel body 1 can also be a separate upper and lower body. For example, the vessel body 1 may include an upper body and a lower body, which can be fixed by welding, facilitating the processing of the liquid storage vessel. The three-dimensional structure of the upper body can be referred to... Figure 2 As shown, the three-dimensional structure of the lower body can be referred to Figure 4 and Figure 5 As shown. In another example, refer to Figure 2 As shown, at least two mounting ears 12 extend outward in a horizontal direction from the top of the reservoir body 1. The at least two mounting ears 12 are symmetrically arranged about the reservoir body 1 for mounting the reservoir in a vehicle.
[0044] This invention also provides a vehicle that includes a brake fluid reservoir as described in any of the above embodiments.
[0045] In summary, this invention discloses a brake fluid reservoir and a vehicle. The reservoir may include a reservoir body 1, a filling pipe 2, and a cylinder 3. The reservoir body 1 has an inner cavity 101. The filling pipe 2 is located at the top of the reservoir body 1 and communicates with the inner cavity 101. The cylinder 3 is located in the inner cavity 101 and is coaxially arranged with the filling pipe 2 to introduce brake fluid injected from the filling pipe 2 into the cylindrical cavity 301 of the cylinder 3. Furthermore, at least one filling groove 302 is provided on the side of the cylinder 3 near the filling pipe 2 to introduce brake fluid located in the cylindrical cavity 301 into the inner cavity 101 of the reservoir body 1. Thus, after filling with the filling gun, the amount of brake fluid drawn back into the reservoir is all the amount of brake fluid located in the cylindrical cavity 301, thereby avoiding the problem of brake fluid drawn back from outside the cylindrical cavity 301. While meeting the required reservoir height, it can also effectively reduce the length of the filling pipe 2, facilitating the spatial arrangement of the reservoir in the vehicle.
[0046] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0047] It will be readily apparent to those skilled in the art that any combination of the above embodiments is feasible, and therefore any combination of the above embodiments is an implementation scheme of the present invention. However, due to space limitations, this specification will not describe them in detail here.
[0048] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.
[0049] Similarly, it should be understood that, in order to simplify the invention and aid in understanding one or more of the various aspects of the invention, in the description of exemplary embodiments of the invention above, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof.
[0050] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of the invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.
Claims
1. A brake fluid reservoir characterized by, The liquid storage pot comprises: a pot body (1) having an inner cavity (101); a filling pipe (2) located at the top of the pot body (1) and communicating with the inner cavity (101); a cylinder (3) located in the inner cavity (101) and coaxially arranged with the filling pipe (2) to introduce the brake fluid injected from the filling pipe (2) into a cylinder cavity (301) of the cylinder (3); wherein the bottom of the cylinder (3) is a closed structure, and at least one filling groove (302) is further formed on the side of the cylinder (3) close to the filling pipe (2) to introduce the brake fluid located in the cylinder cavity (301) into the inner cavity (101).
2. The brake fluid reservoir of claim 1, wherein, When the number of the filling grooves (302) is greater than two, at least two of the filling grooves (302) are arranged in a circle.
3. The brake fluid reservoir of claim 1, wherein, The pot body (1) further comprises a first side (102) and a second side (103), and the first side (102) and the second side (103) are opposite to each other; the first side (102) is provided with a first baffle (4) and a second baffle (5), and the first baffle (4) and the second baffle (5) are fixed with the top and the bottom of the pot body (1), respectively; the second side (103) is provided with a third baffle (6) and a fourth baffle (7), and the third baffle (6) and the fourth baffle (7) are fixed with the top and the bottom of the pot body (1), respectively; and the first baffle (4), the second baffle (5), the third baffle (6) and the fourth baffle (7) are staggered along the length direction of the first side (102) to form a curved flow channel for the brake fluid to flow; wherein the cylinder (3) is arranged between the first baffle (4) and the third baffle (6), and the liquid outlet pipe (8) communicates with the inner cavity (101) between the fourth baffle (7) and the pot body (1).
4. The brake fluid reservoir of claim 3, wherein, The distance between the end of the fourth baffle (7) close to the first side (102) and the first side (102) is less than or equal to the baffle length of the first baffle (4).
5. The brake fluid reservoir of claim 4, wherein, The distance between the end of the second baffle (5) close to the second side (103) and the second side (103) is less than or equal to the baffle length of the third baffle (6).
6. The brake fluid reservoir of claim 1, wherein, The liquid storage pot further comprises a filter core (9) which is simultaneously embedded in the filling pipe (2) and the cylinder (3) and coaxially arranged with the cylinder (3); the inside of the filter core (9) communicates with the filling port of the filling pipe (2) to filter the brake fluid injected from the filling port of the filling pipe (2) and introduce the filtered brake fluid into the cylinder cavity (301).
7. The brake fluid reservoir of claim 6, wherein, The bottom wall center of the cylinder cavity (301) is further provided with a positioning groove (303), and the bottom of the filter core (9) is embedded in the positioning groove (303) to limit the filter core (9) by the positioning groove (303).
8. The brake fluid reservoir of claim 1, wherein, The liquid storage pot further comprises a pot cover (10) fixed on the filling pipe (2).
9. The brake fluid reservoir of claim 8, wherein, A sealing ring (11) is further embedded in the pot cover (10) to seal the filling opening of the filling pipe (2).
10. A vehicle characterized by comprising: The vehicle comprises the brake fluid liquid storage pot according to any one of claims 1-9.
Citation Information
Patent Citations
Brake fluid oil storage pot
CN219382464U