CN114802164A - Lightweight brake fluid storage tank and vehicle - Google Patents
Lightweight brake fluid storage tank and vehicle Download PDFInfo
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- CN114802164A CN114802164A CN202210481348.1A CN202210481348A CN114802164A CN 114802164 A CN114802164 A CN 114802164A CN 202210481348 A CN202210481348 A CN 202210481348A CN 114802164 A CN114802164 A CN 114802164A
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- 238000003860 storage Methods 0.000 title claims abstract description 49
- 239000012530 fluid Substances 0.000 title claims abstract description 43
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/06—Applications or arrangements of reservoirs
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The invention provides a light brake fluid storage tank and a vehicle, which comprise a storage tank body, wherein oil outlets of a first sub-chamber and a second sub-chamber are communicated with a master cylinder, an MAX line and an MIN line mark are arranged on the outer side surface of the storage tank body, and the position of the MAX line is determined according to the following formula: v MAX ＝(t 1 ×π×d 1 2 /4+t 2 ×π×d 2 2 /4) x 4/1000; volume V of the first partial chamber d ＝π×d 3 2 ×S 1 /(4 × 1000) × 3; volume V of the second partial chamber e ＝π×d 3 2 ×S 2 /(4 × 1000) × 3; the volume of air between the working liquid level and the MAX line is V MAX‑ON ＝((t 1 ‑1)×π×d 1 2 /4+(t 2 ‑1)×π×d 2 2 /4). times.4X 0.7/1000; the brake booster device avoids brake without assistance caused by insufficient brake fluid, and also avoids layout difficulty and increase of the cost and weight of the whole vehicle caused by design redundancy.
Description
Technical Field
The invention belongs to the technical field of automobile parts, particularly relates to a brake liquid storage tank, and more particularly relates to a lightweight brake liquid storage tank.
Background
With the sharp increase of automobile output, energy and environmental problems come along while the automobile industry is developed, great challenges are brought to the automobile industry in China, and the light weight of automobiles is a technology which can ensure the performance of automobiles and save energy, and is an important subject of the automobile industry in China.
A liquid storage tank of automobile brake is one of important elements of a vacuum boosting braking system of an automobile, mechanical energy is converted into hydraulic energy by a pedal lower brake pedal through a push rod and a master cylinder piston, so that the hydraulic energy is supplied to a brake wheel cylinder through a pipeline, brake fluid of the master cylinder flows into the wheel cylinder under certain pressure, the brake shoe rotates around a bearing pin by pushing of a piston of a two-wheel cylinder, and the upper end of the brake shoe is separated towards two sides and is pressed on the inner circular surface of the brake drum through a friction plate of the brake shoe. The non-rotating brake shoes generate friction torque to the rotating brake drum, thereby generating braking force.
The automobile brake mainly comes from the hydraulic thrust of brake fluid of a brake master cylinder, a liquid storage tank is used for storing a container of the brake fluid, and if the brake fluid of the liquid storage tank leaks, the automobile vacuum power-assisted brake system has no medium for converting mechanical energy into hydraulic energy. The absence of brake thrust can cause brake failure of the vehicle.
The brake fluid storage tank is generally arranged above the brake master cylinder and is communicated with the working cavity of the brake master cylinder, the whole system is filled with brake fluid before braking, when the brake fluid is insufficient, the brake fluid can be supplemented through the brake tank, the Maximum (MAX) and Minimum (MIN) marks are arranged on the brake fluid storage tank, and the liquid level of the brake fluid is required to meet the regulations so as to meet the working requirements of the brake system and ensure the driving safety of a vehicle.
The brake fluid required by braking is accurately mastered, the redundant design of the liquid storage tank is reduced on the basis of ensuring the necessary brake fluid required by braking, the arrangement space is favorably reduced, the cost and the weight of the whole vehicle are reduced, and the brake fluid storage tank is a technical problem to be solved urgently at present. Moreover, the volume of the brake liquid storage tank is of great importance to the safety and reliability of the liquid storage tank, and the reasonable volume design can improve the safety and reliability of the liquid storage tank.
Disclosure of Invention
The invention aims to provide a lightweight brake fluid storage tank which is reasonable in internal space design, avoids brake no-assistance force caused by insufficient brake fluid, and also avoids layout difficulty and vehicle cost and weight increase caused by design redundancy.
The purpose of the invention is realized by the following technical scheme:
a lightweight brake fluid reservoir comprises a reservoir body, wherein the reservoir body is provided with a filling port and an oil outlet; a tank cover is arranged on the filling port; the liquid storage tank body is internally provided with a separated cavity which is a first cavity and a second cavity; the oil outlets of the first sub-cavity and the second sub-cavity are communicated with a master cylinder, the surface of the outer side of the liquid storage tank body is provided with an MAX line and an MIN line mark, the brake liquid level in the liquid storage tank is not lower than the MIN line, and a liquid level alarm is arranged at the position of the MIN line on the inner side of the liquid storage tank body;
the MAX line position is determined according to the following formula:
V MAX ＝(t 1 ×π×d 1 2 /4+t 2 ×π×d 2 2 /4)×4/1000；
the volume V of the first sub-cavity d Determined according to the following formula:
V d ＝π×d 3 2 ×S 1 /(4×1000)×3；
the volume V of the second sub-cavity e Determined according to the following formula:
V e ＝π×d 3 2 ×S 2 /(4×1000)×3；
the MIN line position is 1.5-4.5 mm below the working liquid level, and the working liquid level volume V corresponding to the working liquid level ON Maximum volume V of liquid level corresponding to MAX line MAX The following formula is satisfied:
V ON /V MAX ＝(V MAX -V MAX-ON )/V MAX ≥0.25；
MIN line position and divide volume V between chamber MIN-subchamber Determined according to the following formula:
V MIN-subchamber ＝V d +V e ；
The air volume between the working liquid level and the MAX line is V MAX-ON Determined according to the following formula:
V MAX-ON ＝((t 1 -1)×π×d 1 2 /4+(t 2 -1)×π×d 2 2 /4)×4×0.7/1000；
in the formula:
t 1 the thickness of a single front friction plate;
d 1 the diameter of the front caliper cylinder;
t 2 the thickness of a single rear friction plate;
d 2 the diameter of the rear caliper cylinder;
d 3 is the cylinder diameter of a brake master cylinder;
S 1 the stroke of a first cavity of the brake master cylinder is controlled;
S 2 the stroke of the second cavity of the brake master cylinder.
As a better technical scheme of the invention, the liquid storage tank body also comprises a clutch sub-cavity, and an oil outlet of the clutch sub-cavity is communicated with the clutch; the MAX line position of a reservoir containing a clutch subchamber is determined according to the following formula:
V MAX ＝(t 1 ×π×d 1 2 /4+t 2 ×π×d 2 2 /4)×4/1000+V f in the formula, the volume of the sub-cavity of the clutch is V f Equal to 10 ml.
As a more excellent technical scheme of the invention: the brake fluid storage tank body is connected with the master cylinder through the two oil outlets through an oil delivery hose.
As a more excellent technical scheme of the invention: and a sealing ring is arranged at the joint of the oil outlet and the main cylinder.
As a more excellent technical scheme of the invention: the sealing ring is made of EPDM materials.
As a more excellent technical scheme of the invention: the brake fluid storage tank body and the tank cover are made of polypropylene materials.
The invention also provides a vehicle, and the brake fluid storage tank is mounted on the vehicle.
Has the advantages that:
according to the invention, the volume and the strength of the brake fluid storage tank are checked, and unnecessary volume is removed by adjusting the structure of the liquid storage tank, so that the quality of brake fluid in the liquid storage tank is reduced, and the safety and the reliability of the liquid storage tank are improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic view of a brake fluid reservoir of the brake of the present invention;
FIG. 2 is a schematic view showing the distribution of the volume of the inner space of the brake fluid reservoir of the present invention, wherein V MAX ＝a+b+c+d+e；V MAX-ON ＝a；V MIN-subchamber ＝c；V d ＝d；V e ＝e；V f ＝f。
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
As shown in fig. 1 to 2, the invention provides a lightweight brake fluid reservoir, which comprises a reservoir body, wherein the reservoir body is provided with a filling port and an oil outlet; a tank cover is arranged on the filling port; the separated sub-cavities arranged in the liquid storage tank body are a first sub-cavity, a second sub-cavity and a clutch sub-cavity; the oil outlets of the first sub-cavity and the second sub-cavity are communicated with a master cylinder, the oil outlet of the clutch sub-cavity is communicated with a clutch, the surface of the outer side of the liquid storage tank body is marked by an MAX line and a MIN line, the brake liquid level in the liquid storage tank is not lower than the MIN line, and a liquid level alarm is arranged at the MIN line on the inner side of the liquid storage tank body;
the MAX line position is determined according to the following formula:
V MAX ＝(t 1 ×π×d 1 2 /4+t 2 ×π×d 2 2 /4)×4/1000+V f in the formula, the clutch sub-cavity V f 10 ml;
the volume V of the first sub-cavity d Determined according to the following formula:
V d ＝π×d 3 2 ×S 1 /(4×1000)×3；
the volume V of the second sub-cavity e Determined according to the following formula:
V e ＝π×d 3 2 ×S 2 /(4×1000)×3；
the MIN line position is 1.5-4.5 mm below the working liquid level, and the working liquid level volume V corresponding to the working liquid level ON Maximum volume V of liquid level corresponding to MAX line MAX The following formula is satisfied:
V ON /V MAX ＝(V MAX -V MAX-ON )/V MAX ≥0.25；
MIN line position and divide volume V between chamber MIN-subchamber Determined according to the following formula:
V MIN-subchamber ＝V d +V e ；
The air volume between the working liquid level and the MAX line is V MAX-ON Determined according to the following formula:
V MAX-ON ＝((t 1 -1)×π×d 1 2 /4+(t 2 -1)×π×d 2 2 /4)×4×0.7/1000；
in the formula:
t 1 is the thickness (mm) of a single front friction plate;
d 1 the diameter of the front caliper cylinder (mm);
t 2 is the thickness (mm) of a single rear friction plate;
d 2 the diameter of the rear caliper cylinder (mm);
d 3 the diameter (mm) of a brake master cylinder;
S 1 the stroke of a first cavity of the brake master cylinder is controlled; the stroke of the first cavity of the brake master cylinder refers to the stroke range of a piston in the brake master cylinder.
S 2 The stroke of a second cavity of the brake master cylinder; the stroke of the second cavity of the brake master cylinder refers to the stroke range of a piston in the brake master cylinder.
Obtaining the thickness (mm) of a single front friction plate, the cylinder diameter (mm) of a front caliper, the thickness (mm) of a single rear friction plate and d of a certain vehicle type 2 The diameter of the rear caliper cylinder (mm); cylinder diameter (mm) of brake master cylinder and S 1 The positions of the MIN line and the MAX line of the brake fluid storage tank of the vehicle type and the size of the sub-cavity volume can be calculated for the stroke of the first cavity of the brake master cylinder and the stroke of the second cavity of the brake master cylinder.
In some embodiments, the brake fluid reservoir body is connected to the master cylinder through two of the oil outlets by an oil hose.
In some embodiments, a sealing ring is arranged at the connection position of the oil outlet and the main cylinder.
In some embodiments, the method comprises: the sealing ring is made of EPDM materials.
In some embodiments, the brake fluid reservoir body and the reservoir cover are made of polypropylene.
The invention also provides a vehicle, and the brake fluid storage tank is mounted on the vehicle.
In conclusion, the brake fluid storage tank meets the volume requirement of the storage tanks of different vehicle types. The production cost of the brake fluid storage tank is reduced, and the production cost of the whole vehicle is further reduced.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (7)
1. A lightweight brake fluid reservoir characterized by: the liquid storage tank comprises a liquid storage tank body, wherein a filling port and an oil outlet are formed in the liquid storage tank body; a tank cover is arranged on the filling port; the liquid storage tank body is internally provided with a separated cavity which is a first cavity and a second cavity; the oil outlets of the first sub-cavity and the second sub-cavity are communicated with a master cylinder, the surface of the outer side of the liquid storage tank body is provided with an MAX line and an MIN line mark, the brake liquid level in the liquid storage tank is not lower than the MIN line, and a liquid level alarm is arranged at the position of the MIN line on the inner side of the liquid storage tank body;
the MAX line position is determined according to the following formula:
V MAX ＝(t 1 ×π×d 1 2 /4+t 2 ×π×d 2 2 /4)×4/1000；
the volume V of the first sub-cavity d Determined according to the following formula:
V d ＝π×d 3 2 ×S 1 /(4×1000)×3；
the volume V of the second sub-cavity e Determined according to the following formula:
V e ＝π×d 3 2 ×S 2 /(4×1000)×3；
the MIN line position is 1.5-4.5 mm below the working liquid level, and the working liquid level volume V corresponding to the working liquid level ON Maximum volume V of liquid level corresponding to MAX line MAX The following formula is satisfied:
V ON /V MAX ＝(V MAX -V MAX-ON )/V MAX ≥0.25；
MIN line position and divide volume V between chamber MIN-subchamber Determined according to the following formula:
V MIN-subchamber ＝V d +V e ；
The air volume between the working liquid level and the MAX line is V MAX-ON Determined according to the following formula:
V MAX-ON ＝((t 1 -1)×π×d 1 2 /4+(t 2 -1)×π×d 2 2 /4)×4×0.7/1000；
in the formula:
t 1 the thickness of a single front friction plate;
d 1 is the diameter of a front caliper cylinder;
t 2 the thickness of a single rear friction plate;
d 2 the diameter of the rear caliper cylinder;
d 3 is the cylinder diameter of a brake master cylinder;
S 1 the stroke of a first cavity of the brake master cylinder is controlled;
S 2 the stroke of the second cavity of the brake master cylinder.
2. The lightweight brake fluid reservoir of claim 1, wherein: the liquid storage tank body also comprises a clutch sub-cavity, and an oil outlet of the clutch sub-cavity is communicated with the clutch; the MAX line position of a reservoir containing a clutch subchamber is determined according to the following formula:
V MAX ＝(t 1 ×π×d 1 2 /4+t 2 ×π×d 2 2 /4)×4/1000+V f in the formula, the volume of the sub-cavity of the clutch is V f Equal to 10 ml.
3. The lightweight brake fluid reservoir of claim 1, wherein: the brake fluid storage tank body is connected with the master cylinder through the two oil outlets through an oil delivery hose.
4. The lightweight brake fluid reservoir of claim 1, wherein: and a sealing ring is arranged at the joint of the oil outlet and the main cylinder.
5. The lightweight brake fluid reservoir of claim 1, wherein: the sealing ring is made of EPDM materials.
6. The lightweight brake fluid reservoir of claim 1, wherein: the brake fluid storage tank body and the tank cover are made of polypropylene materials.
7. A vehicle, characterized in that: comprising the brake fluid reservoir according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210481348.1A CN114802164A (en) | 2022-05-05 | 2022-05-05 | Lightweight brake fluid storage tank and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210481348.1A CN114802164A (en) | 2022-05-05 | 2022-05-05 | Lightweight brake fluid storage tank and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN114802164A true CN114802164A (en) | 2022-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210481348.1A Pending CN114802164A (en) | 2022-05-05 | 2022-05-05 | Lightweight brake fluid storage tank and vehicle |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204055765U (en) * | 2014-09-01 | 2014-12-31 | 北京汽车股份有限公司 | A kind of liquid storing tank braking |
| CN105015536A (en) * | 2015-08-10 | 2015-11-04 | 安徽江淮汽车股份有限公司 | Method for designing volume of brake fluid container |
| CN204895458U (en) * | 2015-07-28 | 2015-12-23 | 简式国际汽车设计（北京）有限公司 | Brake fluid liquid storage pot |
| CN209634467U (en) * | 2019-02-26 | 2019-11-15 | 宁波吉利汽车研究开发有限公司 | The device for storing liquid of motor vehicle brake fluid |
| CN111137255A (en) * | 2020-02-25 | 2020-05-12 | 莱芜职业技术学院 | Vehicle brake fluid replacement machine and replacement method |
| CN212172192U (en) * | 2020-04-14 | 2020-12-18 | 鲍长国 | Light automobile hydraulic master cylinder with safe braking |
-
2022
- 2022-05-05 CN CN202210481348.1A patent/CN114802164A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204055765U (en) * | 2014-09-01 | 2014-12-31 | 北京汽车股份有限公司 | A kind of liquid storing tank braking |
| CN204895458U (en) * | 2015-07-28 | 2015-12-23 | 简式国际汽车设计（北京）有限公司 | Brake fluid liquid storage pot |
| CN105015536A (en) * | 2015-08-10 | 2015-11-04 | 安徽江淮汽车股份有限公司 | Method for designing volume of brake fluid container |
| CN209634467U (en) * | 2019-02-26 | 2019-11-15 | 宁波吉利汽车研究开发有限公司 | The device for storing liquid of motor vehicle brake fluid |
| CN111137255A (en) * | 2020-02-25 | 2020-05-12 | 莱芜职业技术学院 | Vehicle brake fluid replacement machine and replacement method |
| CN212172192U (en) * | 2020-04-14 | 2020-12-18 | 鲍长国 | Light automobile hydraulic master cylinder with safe braking |
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Application publication date: 20220729 |
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