Liquid storage oil can for brake system, brake system and vehicle

Abstract

The utility model discloses a liquid storage oil can for a braking system, the braking system and a vehicle. The liquid storage oil can comprises a shell, a plurality of first cavities are formed in the shell, a plurality of oil outlets communicated with the first cavities are formed in the bottom of the shell, a second cavity is formed in the shell, and the second cavity is suitable for communicating the first cavities; the oil inlet nozzle is arranged at the top of the shell, an oil inlet channel communicated with the second cavity is formed in the oil inlet nozzle, and the oil inlet channel is obliquely arranged in the height direction. According to the liquid storage oil can, the multiple first cavities and the second cavity communicating the multiple first cavities are formed in the shell, the first cavities are suitable for being communicated with the oil outlet, and the second cavity is suitable for being communicated with the oil inlet channel; air in the liquid storage oil pot can be discharged out of the liquid storage oil pot through the second cavity and the oil inlet channel, and the phenomenon of suffocation in the liquid storage oil pot is avoided.

Description

Technical Field

[0001] The utility model relates to the field of brake systems, in particular to a liquid storage oil pot used in brake systems, a brake system and a vehicle. Background Art

[0002] In the related technology, the integrated brake control modules currently installed in automobiles are equipped with a split brake fluid reservoir. Compared with traditional vacuum boosters, the integrated brake control modules have higher requirements on the air permeability of the brake fluid reservoir. The presence of air in the reservoir can easily lead to serious consequences such as softening of the brakes, long pedal travel, insufficient brake pressure, false alarms, and brake failure. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose a liquid reservoir for a brake system. According to the liquid reservoir designed by the utility model, a plurality of first cavities and a second cavity connecting the plurality of first cavities are formed in its shell, the first cavity is suitable for communicating with the oil outlet and the second cavity is suitable for communicating with the oil inlet channel. During the process of filling the brake fluid, the air in the liquid reservoir can be discharged to the outside of the liquid reservoir through the second cavity and the oil inlet channel, so as to avoid the phenomenon of holding air in the liquid reservoir.

[0004] The utility model also provides a brake system with the above-mentioned liquid storage oil pot.

[0005] The utility model also provides a vehicle with the braking system.

[0006] According to the utility model, the liquid storage oil pot includes: a shell body, a plurality of first cavities are formed in the shell body, a plurality of oil outlets respectively connected with the first cavities are formed at the bottom of the shell body, a second cavity is formed in the shell body, and the second cavity is suitable for connecting the plurality of first cavities; an oil inlet nozzle, the oil inlet nozzle is arranged at the top of the shell body, an oil inlet channel connected with the second cavity is formed in the oil inlet nozzle, and the oil inlet channel is inclined in the height direction.

[0007] According to the utility model, a liquid storage oil pot has a plurality of first cavities and a second cavity connecting the plurality of first cavities formed in its shell, the first cavity is suitable for being connected with the oil outlet and the second cavity is suitable for being connected with the oil inlet channel, and during the process of filling brake fluid, the air in the liquid storage oil pot can be discharged to the outside of the shell through the second cavity and the oil inlet channel, avoiding the air holding phenomenon in the shell, improving the braking reliability of the braking system, and avoiding the phenomena of softening brakes, long pedal stroke, insufficient brake pressure, false alarms, brake failure, etc.

[0008] According to some embodiments of the utility model, the shell includes: a first shell, in which a plurality of the first cavities are formed, the tops of the plurality of the first cavities are open, and a first connecting portion is provided at the top of the first shell; a second shell, in which the second cavity is formed, the bottom of the second cavity is open, and a second connecting portion suitable for connecting to the first connecting portion is provided at the bottom of the second shell.

[0009] According to some embodiments of the present invention, the first connection portion is disposed around the open opening of the first shell and protrudes radially from the first shell, and the second connection portion is disposed around the open opening of the second shell and protrudes radially from the second shell.

[0010] According to some embodiments of the utility model, an oil inlet is formed on the top of the second shell, and the oil inlet is suitable for connecting the second cavity with the oil inlet channel, and the top of the second shell gradually decreases in height in a direction away from the oil inlet.

[0011] According to some embodiments of the utility model, a plurality of oil outlet nozzles are provided at the bottom of the shell, and oil outlet channels are respectively formed in the plurality of oil outlet nozzles, and the plurality of oil outlet channels respectively correspond to and are connected with the plurality of oil outlets.

[0012] According to some embodiments of the present invention, a connecting ear is provided at the bottom of the housing, and the connecting ear is suitable for connecting to a brake master cylinder.

[0013] According to some embodiments of the present utility model, the top of the shell has a symmetrical center line located in the width direction of the shell, and the oil inlet nozzle is arranged on the symmetrical center line.

[0014] According to some embodiments of the present utility model, a sensor connector is disposed on the top of the housing, and the sensor connector is suitable for installing a liquid level sensor.

[0015] The following briefly describes a braking system according to another embodiment of the present invention.

[0016] The braking system according to the utility model includes the liquid storage oil pot described in any one of the above embodiments. Since the braking system according to the utility model is provided with the liquid storage oil pot of the above embodiments, the braking reliability of the braking system is higher.

[0017] A vehicle according to another embodiment of the present invention will be briefly described below.

[0018] The vehicle according to the utility model includes the braking system described in any one of the above embodiments. Since the vehicle according to the utility model is provided with the braking system of the above embodiments, the braking reliability of the vehicle is higher.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 It is a front view of a liquid storage oil pot according to an embodiment of the utility model;

[0022] Figure 2 It is a top view of a liquid storage oil pot according to an embodiment of the utility model;

[0023] Figure 3 It is a cross-sectional view of the cooperation between the fluid storage oil pot and the brake master cylinder according to an embodiment of the utility model.

[0024] Reference numerals: 1, oil reservoir; 2, brake master cylinder;

[0025] 11. first shell; 111. first cavity; 112. first connection portion; 12. second shell; 121. second cavity; 122. second connection portion;

[0026] 20. Oil inlet nozzle; 21. Oil inlet channel;

[0027] 30. Oil outlet nozzle; 31. Oil outlet channel;

[0028] 40. Connecting ear; 50. Sensor connector; 60. Pedal simulator connecting part; 70. Support leg. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not 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 one or more of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In the related technology, the integrated brake control modules currently installed in automobiles are equipped with a split brake fluid reservoir. Compared with traditional vacuum boosters, the integrated brake control modules have higher requirements on the air permeability of the brake fluid reservoir. The presence of air in the reservoir can easily lead to serious consequences such as softening of the brakes, long pedal travel, insufficient brake pressure, false alarms, and brake failure.

[0035] Reference below Figure 1-Figure 3 A fluid reservoir 1 for a brake system according to an embodiment of the utility model is described.

[0036] like Figure 1-Figure 3 As shown, the liquid storage oil pot 1 according to the utility model includes: a shell and an oil inlet nozzle 20, a plurality of first cavities 111 are formed in the shell, a plurality of oil outlets respectively connected with the first cavities 111 are formed at the bottom of the shell, a second cavity 121 is formed in the shell, the second cavity 121 is suitable for connecting the plurality of first cavities 111, the oil inlet nozzle 20 is arranged at the top of the shell, an oil inlet channel 21 connected with the second cavity 121 is formed in the oil inlet nozzle 20, and the oil inlet channel 21 is inclined in the height direction.

[0037] In some embodiments, a plurality of first cavities 111 and a second cavity 121 suitable for connecting the plurality of first cavities 111 are formed in the shell, the second cavity 121 is located above the plurality of first cavities 111, an oil inlet is formed at the top of the shell, the oil inlet is suitable for connecting with the second cavity 121, a plurality of oil outlets are formed at the bottom of the shell, the plurality of oil outlets correspond one-to-one to and are connected with the plurality of first cavities 111, an oil inlet nozzle 20 is provided at the top of the shell, and an oil inlet channel 21 in the oil inlet nozzle 20 is suitable for connecting with the second cavity 121 through the oil inlet.

[0038] In the prior art, in order to ensure that the braking system has brake fluid under various working conditions, a plurality of oil chambers isolated from each other are arranged in the fluid reservoir. However, during the process of filling the brake fluid, as the brake fluid level in each oil chamber rises, the air in each oil chamber cannot be discharged, resulting in air holding in the oil chamber, which leads to softening of the brakes, long pedal stroke, insufficient brake pressure, false alarms, brake failure and the like.

[0039] It can be understood that the brake fluid can enter the second cavity 121 and the multiple first cavities 111 through the oil inlet channel 21 and the oil inlet port in sequence. When the brake fluid enters the multiple first cavities 111, the brake fluid squeezes the air in the multiple first cavities 111 and allows the air in the first cavity 111 to enter the second cavity 221. The air entering the second cavity 221 can be discharged through the oil inlet port and the oil inlet channel 21. When the multiple first cavities 111 are filled with brake fluid, the brake fluid continues to be filled and is suitable for filling the second cavity 121. As the brake fluid level in the second cavity 121 gradually rises, the air in the second cavity 121 can be discharged through the oil inlet port and the oil inlet channel 21. As a result, the air in the multiple first cavities 111 and the second cavity 121 can be discharged from the shell to avoid the air holding phenomenon in the shell.

[0040] At the same time, since the oil inlet channel 21 of the present application is inclined in the height direction, during the process of filling the brake fluid, the brake fluid will flow along the lower inner wall of the oil inlet channel 21, and a gap can be formed between the upper inner wall of the oil inlet channel 21 and the brake fluid, and the air in the liquid reservoir 1 can be discharged through the gap.

[0041] It is worth noting that the multiple first cavities 111 are connected to the multiple brake cavities of the brake master cylinder 2 through multiple oil outlets, so that the brake system has brake fluid under various working conditions to meet the braking requirements.

[0042] According to the liquid reservoir pot 1 involved in the utility model, a plurality of first cavities 111 and a second cavity 121 connecting the plurality of first cavities 111 are formed in its shell, the first cavity 111 is suitable for being connected with the oil outlet and the second cavity 121 is suitable for being connected with the oil inlet channel 21, and during the process of filling the brake fluid, the air in the liquid reservoir pot 1 can be discharged to the outside of the shell through the second cavity 121 and the oil inlet channel 21, so as to avoid the air holding phenomenon in the shell, thereby improving the braking reliability of the braking system and avoiding the phenomena of softening brakes, long pedal stroke, insufficient brake pressure, false alarms, brake failure and the like.

[0043] According to some embodiments of the present invention, Figure 1-Figure 3 As shown, the shell includes: a first shell 11 and a second shell 12, a plurality of first cavities 111 are formed in the first shell 11, the tops of the plurality of first cavities 111 are open, a first connecting portion 112 is arranged at the top of the first shell 11, a second cavity 121 is formed in the second shell 12, the bottom of the second cavity 121 is open, and a second connecting portion 122 suitable for connecting with the first connecting portion 112 is arranged at the bottom of the second shell 12.

[0044] The shell of the present application includes a first shell 11 and a second shell 12. A plurality of first cavities 111 are formed in the first shell 11, and a second cavity 121 is formed in the second shell 12. Compared with the entire shell, the structures of the first shell 11 and the second shell 12 are simpler, that is, the production of the first shell 11 and the second shell 12 is easier, that is, the above-mentioned arrangement can improve the production efficiency of the shell.

[0045] In some embodiments, the first shell 11 and the second shell 12 are both made of PP plastic and are made using an injection molding process. After the first shell 11 and the second shell 12 are respectively manufactured, the first connecting part 112 and the second connecting part 122 are welded using a hot plate welding process to connect the first shell 11 and the second shell 12.

[0046] According to some embodiments of the present invention, Figure 1-Figure 3As shown, the first connection part 112 is arranged around the open mouth of the first housing 11 and protrudes from the first housing 11 in the radial direction, thereby, the surface area of ​​the first connection part 112 facing the second connection part 122 can be larger, and the first connection part 112 can be prevented from occupying the internal space of the housing, so that the reservoir 1 can store more brake fluid; the second connection part 122 is arranged around the open mouth of the second housing 12 and protrudes from the second housing 12 in the radial direction, so that the surface area of ​​the second connection part 122 facing the first connection part 112 can be larger. Since the first connection part 112 and the second connection part 122 are connected by a hot plate welding process, the above arrangement can make the welding area of ​​the first connection part 112 and the second connection part 122 larger, thereby improving the sealing ability of the housing.

[0047] According to some embodiments of the present invention, Figure 1-Figure 3 As shown, an oil inlet is formed at the top of the second housing 12, and the oil inlet is suitable for connecting the second cavity 121 with the oil inlet channel 21, and the height of the top of the second housing 12 gradually decreases in the direction away from the oil inlet. It can be understood that the distance between the top of the second housing 12 and the bottom of the first housing 11 is L, and L gradually decreases in the direction away from the oil inlet, that is, in the horizontal direction and in the direction away from the oil inlet, the top of the second housing 12 gradually tilts toward the bottom of the first housing 11. Therefore, in the process of the brake fluid level in the second cavity 121 gradually rising, when the brake fluid level rises to the lowest point of the second cavity 12 in the height direction, the brake fluid can continue to be filled, and in the process of continuing to fill the brake fluid, the air at the top of the second cavity 121 can be discharged along the top wall of the second cavity 121, avoiding the air holding phenomenon at the top of the second cavity 121, and further improving the braking reliability of the braking system.

[0048] According to some embodiments of the present invention, Figure 1-Figure 3 As shown, a plurality of oil outlet nozzles 30 are provided at the bottom of the housing, and oil outlet channels 31 are formed in the plurality of oil outlet nozzles 30, respectively, and the plurality of oil outlet channels 31 correspond to and communicate with the plurality of oil outlets. In some embodiments, at least a portion of the plurality of oil outlet nozzles 30 extends into the plurality of brake cavities of the brake master cylinder 2, and the oil outlet channels 31 are suitable for connecting the oil outlets with the brake cavities. In the process of the brake fluid entering the brake cavity from the first cavity 111, the oil outlet channels 31 are suitable for guiding the brake fluid so that the brake fluid can accurately enter the brake cavity.

[0049] According to some embodiments of the present invention, Figure 1-Figure 3As shown, the bottom of the housing is provided with a connecting ear 40, which is suitable for connecting with the brake master cylinder 2. It can be understood that the liquid reservoir 1 is arranged on the top of the brake master cylinder 2, and the top of the brake master cylinder 2 is provided with a fixing portion, which is suitable for cooperating with the connecting ear 40 at the bottom of the housing to connect the liquid reservoir 1 with the brake master cylinder 2, thereby improving the connection stability between the liquid reservoir 1 and the brake master cylinder 2. Preferably, the bottom of the housing is also provided with a supporting leg 70, which is suitable for abutting against the top of the brake master cylinder 2, so that the liquid reservoir 1 can be stably supported on the brake master cylinder 2, thereby improving the installation stability of the liquid reservoir 1.

[0050] According to some embodiments of the present invention, Figure 1-Figure 3 As shown, the top of the housing has a symmetrical center line in its width direction, and the oil inlet nozzle 20 is arranged on the symmetrical center line.

[0051] It can be understood that the braking system includes a liquid storage oil pot 1 and a remote oil pot, and the liquid storage oil pot 1 and the remote oil pot are connected by an oil pipe. Compared with the braking system provided with an integral oil pot, the braking system of the present application includes a liquid storage oil pot 1 and a remote oil pot, that is, the braking system of the present application is provided with a split oil pot, which is smaller in size and more flexible in layout.

[0052] It is worth mentioning that the oil inlet nozzle 20 of the present application is arranged on the symmetrical center line to improve the layout flexibility of the remote oil pot, that is, the oil pipe can extend from both sides of the liquid storage oil pot 1 in the width direction to the oil inlet nozzle 20 and connect with the oil inlet channel 21. The oil pipe is more convenient to set, which improves the assembly efficiency of the braking system.

[0053] According to some embodiments of the present invention, Figure 1-Figure 3 As shown, a sensor connector 50 is provided on the top of the shell, and the sensor connector 50 is suitable for installing a liquid level sensor. It can be understood that the liquid level sensor can detect the liquid level of the brake fluid in the liquid reservoir 1, so as to give an alarm in time when the brake fluid is insufficient, thereby improving the braking safety factor of the braking system.

[0054] In some embodiments, the first housing 11 is further provided with a pedal simulator connection portion 60, which is suitable for connecting to a pedal simulator. The pedal simulator works to control the change of brake fluid in the fluid reservoir 1 so as to make the brake system work.

[0055] Preferably, the pedal simulator connecting part 60 is integrally injection molded with the first shell 11, the sensor connector 50 is integrally injection molded with the second shell 12, the oil inlet nozzle 20 is integrally injection molded with the second shell 12, and the oil outlet nozzle 30 is integrally injection molded with the first shell 11. Therefore, the above-mentioned arrangement can simplify the assembly process of the braking system and improve the assembly efficiency of the braking system.

[0056] The braking system according to the present utility model is briefly described below.

[0057] The brake system according to the utility model is provided with the liquid reservoir 1 of the above embodiment. Since the brake system according to the utility model is provided with the liquid reservoir 1 described in any one of the above embodiments, the brake reliability of the brake system is higher.

[0058] The vehicle according to the present utility model is briefly described below.

[0059] The vehicle according to the utility model is provided with the braking system of the above-mentioned embodiment. Since the vehicle according to the utility model is provided with the braking system described in any one of the above-mentioned embodiments, the braking reliability of the vehicle is higher.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described 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 different embodiments or examples described in this specification.

[0061] Although embodiments of the present invention have been shown and described above, changes, modifications, substitutions and variations may be made to the embodiments described above.

Claims

1. A fluid reservoir for a brake system, characterized in that: include: A housing, wherein a plurality of first cavities are formed in the housing, a plurality of oil outlets respectively connected to the first cavities are formed at the bottom of the housing, a second cavity is formed in the housing, and the second cavity is suitable for connecting the plurality of first cavities; An oil inlet nozzle is arranged at the top of the shell, an oil inlet channel connected to the second cavity is formed in the oil inlet nozzle, and the oil inlet channel is inclined in the height direction.

2. The liquid reservoir for a brake system according to claim 1, characterized in that: The housing comprises: A first shell, wherein a plurality of first cavities are formed in the first shell, the tops of the plurality of first cavities are open, and a first connecting portion is provided on the top of the first shell; The second shell has the second cavity formed therein, the bottom of the second cavity is open, and the bottom of the second shell has a second connecting portion suitable for connecting with the first connecting portion.

3. The fluid reservoir for a brake system according to claim 2, characterized in that: The first connection portion is disposed around the open opening of the first shell and protrudes from the first shell in the radial direction, and the second connection portion is disposed around the open opening of the second shell and protrudes from the second shell in the radial direction.

4. The liquid reservoir for a brake system according to claim 2, characterized in that: An oil inlet is formed on the top of the second shell, and the oil inlet is suitable for connecting the second cavity with the oil inlet channel. The top of the second shell gradually decreases in height in a direction away from the oil inlet.

5. The fluid reservoir for a brake system according to claim 1, characterized in that: A plurality of oil outlet nozzles are arranged at the bottom of the shell, and oil outlet channels are respectively formed in the plurality of oil outlet nozzles. The plurality of oil outlet channels correspond to and are connected with the plurality of oil outlets one by one.

6. The fluid reservoir for a brake system according to claim 1, characterized in that: The bottom of the housing is provided with a connecting ear, and the connecting ear is suitable for connecting with a brake master cylinder.

7. The fluid reservoir for a brake system according to claim 1, characterized in that: The top of the housing has a symmetrical center line in the width direction of the housing, and the oil inlet nozzle is arranged on the symmetrical center line.

8. The fluid reservoir for a brake system according to claim 1, characterized in that: A sensor connector is disposed on the top of the housing and is suitable for installing a liquid level sensor.

9. A braking system, characterized in that: The invention comprises a liquid storage oil pot as described in any one of claims 1 to 8.

10. A vehicle, characterized in that: Includes the braking system as claimed in claim 9.

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