Reservoir for a brake system

Abstract

According to an aspect of the present application, there can be provided a reservoir for a brake system, the reservoir for a brake system including: an upper body provided with an oil injection portion for injecting oil; a lower body provided with a port portion for supplying oil to a master cylinder, and coupled to the upper body to form an oil space; and a partition plate provided in the oil space to prevent a tilting phenomenon of the oil, the partition plate including: a plurality of first partition plates formed in an up-down direction; and a second partition plate provided between the plurality of first partition plates and internally formed with a communication space that communicates with the port portion.

Description

Technical Field

[0001] The present invention relates to a reservoir for a braking system, and more specifically, to a reservoir for a braking system capable of storing brake fluid supplied to the master cylinder. Background Technology

[0002] Generally, the reservoir used in a braking system has an internal space for storing brake fluid. Additionally, the reservoir can be connected to the master cylinder, which generates brake fluid pressure based on the force applied to the brake pedal, and the fluid stored in the reservoir can be supplied to the master cylinder.

[0003] Typically, a reservoir may include an oil injection section for injecting oil and a port section for discharging oil from inside the reservoir to the main cylinder. Additionally, multiple baffles may be formed inside the reservoir along the vertical direction.

[0004] The reservoir may include a float that floats inside the reservoir and senses the amount of residual oil, and the float may be guided to move up and down by a float guide inside the reservoir.

[0005] Existing technical documents

[0006] Patent documents

[0007] Korean Patent Registration Publication No. 10-0731689 (Published on May 15, 2005) Summary of the Invention

[0008] (a) Technical problems to be solved

[0009] One embodiment of the present invention aims to provide a reservoir for a braking system, wherein a second baffle is provided to prevent air from entering the reservoir through the port.

[0010] One embodiment of the present invention aims to provide a reservoir for a braking system that can reduce noise generation by preventing air from entering the oil space through the port.

[0011] One embodiment of the present invention aims to provide a reservoir for a braking system that can prevent a decrease in pedal feel and braking performance by preventing air from entering the oil space through the port.

[0012] One embodiment of the present invention aims to provide a reservoir for a braking system, wherein fluid in the oil space can flow smoothly through a second baffle having an opening.

[0013] (II) Technical Solution

[0014] According to one aspect of the present invention, a reservoir for a braking system can be provided, the reservoir comprising: an upper body having an oil injection section for injecting oil; a lower body having a port for supplying oil to a master cylinder and being connected to the upper body to form an oil space; and a partition disposed in the oil space to prevent the oil from tilting, the partition comprising: a plurality of first partitions formed in a vertical direction; and a second partition disposed between the plurality of first partitions and having a communicating space therein communicating with the port.

[0015] A reservoir for a braking system may be provided, wherein an opening is formed in the wall of the second partition.

[0016] A reservoir for a braking system can be provided, wherein the opening is formed in the wall surface on the opposite side of the side facing the second partition and the oil injection section.

[0017] A reservoir for a braking system may be provided, wherein the opening extends vertically.

[0018] A reservoir for a braking system can be provided, wherein the second baffle is formed on the lower body at a predetermined angle relative to the port portion.

[0019] A reservoir for a braking system can be provided, wherein the partition is integrally formed with at least one of the upper body and the lower body.

[0020] A reservoir for a braking system may be provided, further comprising: a float that moves up and down with an oil surface within the oil space to measure the amount of residual oil within the oil space; and a float guide that guides the up-and-down movement of the float.

[0021] The reservoir for the braking system may further include an oil sensing unit disposed at the lower part of the float.

[0022] A reservoir for a braking system can be provided, wherein the second partition is configured as a hollow cylindrical shape.

[0023] A reservoir for a braking system may be provided, wherein a plurality of said port portions and a plurality of the second baffles are provided.

[0024] (III) Beneficial Effects

[0025] According to an embodiment of the present invention, the reservoir for a braking system can be provided with a second baffle to prevent air from entering the reservoir through the port.

[0026] According to an embodiment of the present invention, a reservoir for a braking system can reduce noise generation by preventing air from entering the oil space through the port.

[0027] According to an embodiment of the present invention, a reservoir for a braking system can prevent a decrease in pedal feel and braking performance by preventing air from entering the oil space through the port.

[0028] According to an embodiment of the present invention, in a fluid reservoir for a braking system, fluid in the oil space can flow smoothly through a second baffle with an opening.

[0029] According to one embodiment of the present invention, the braking device can maintain a uniform operating stroke of the piston by means of a stop and a locking member that is locked and supported by the stop. Attached Figure Description

[0030] Figure 1 This is a front view of a reservoir for a braking system according to an embodiment of the present invention.

[0031] Figure 2 This is a cross-sectional view of a reservoir for a braking system according to an embodiment of the present invention.

[0032] Figure 3 This is a cross-sectional perspective view of a reservoir for a braking system according to an embodiment of the present invention.

[0033] Figure 4 This is a cross-sectional view showing the state in which oil is contained in the oil space of a reservoir for a braking system according to an embodiment of the present invention.

[0034] Explanation of reference numerals in the attached figures

[0035] 100: Liquid storage tank; 110: Upper main body

[0036] 120: Lower main body 130: Port section

[0037] 140: First partition; 150: Second partition

[0038] 160: Float section 170: Oil sensing section Detailed Implementation

[0039] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. These embodiments are provided to fully convey the spirit of the invention to those skilled in the art. The present invention is not limited to the embodiments given herein, and may be embodied in other forms. To clarify the invention, parts unrelated to the description may be omitted from the drawings, and the dimensions of components may be shown enlarged for ease of understanding.

[0040] Figure 1 This is a front view of a reservoir for a braking system according to an embodiment of the present invention. Figure 2 This is a cross-sectional view of a reservoir for a braking system according to an embodiment of the present invention. Figure 3 This is a cross-sectional perspective view of a reservoir for a braking system according to an embodiment of the present invention. Figure 4 This is a cross-sectional view showing the state in which oil is contained in the oil space of a reservoir for a braking system according to an embodiment of the present invention.

[0041] Reference Figures 1 to 4 The reservoir 100 of the present invention can be integrated with a master cylinder that generates braking hydraulic pressure. The master cylinder can be configured such that a piston disposed inside advances according to the pedal force of the brake pedal and generates hydraulic pressure, and the generated hydraulic pressure can be supplied to the wheel cylinders for braking.

[0042] The reservoir 100 of the present invention may have an oil space S for storing oil supplied to the main cylinder. The oil space S is the space formed inside the reservoir 100 when the upper body 110 and the lower body 120 are thermally welded together. The oil supplied to the main cylinder may be stored in the oil space S.

[0043] An oil injection section 111 for injecting oil can be formed on one side of the upper body 110. The oil injection section 111 can be configured as a cylinder as shown in the figure, but is not limited thereto. The interior of the oil injection section 111 can be open to form a channel 111a for supplying oil.

[0044] On the other hand, although not shown, a removable reservoir cap can be installed on the upper part of the oil injection section 111. When the reservoir cap is installed on the upper part of the oil injection section 111, the oil injection section 111 can be closed to prevent air, foreign objects, etc. from entering the reservoir 100. Furthermore, when the reservoir cap is separated from the oil injection section 111, oil can be supplied to the reservoir 100.

[0045] Furthermore, an upper filter can be provided at the lower part of the oil injection section 111. The upper filter can be connected to the lower part of the oil injection section 111 to filter the oil injected through the oil injection section 111. In other words, the upper filter can remove foreign matter from the oil introduced into the storage tank 100. The upper filter can be integrally formed with the upper body 110. In this way, by integrally forming the upper filter provided on the upper body 110 during the forming of the upper body 110, the work efficiency of manufacturing the upper body 110 can be improved, and the time and cost incurred when assembling after separately manufacturing the filter can be reduced.

[0046] The lower body 120 may have at least one port portion 130. The port portion 130 formed in the lower part of the reservoir 100 may be fitted or inserted into the main cylinder to be connected to the main cylinder. On the other hand, a flow channel 131 connecting the oil space S of the reservoir 100 and the main cylinder may be formed between the inner wall surfaces 132 of the port portion 130.

[0047] The lower body 120 may have a float section 160 internally disposed therein. The float section 160 may include: a float 161 that moves up and down with the oil surface in the oil space S to measure the residual oil level in the oil space S, and a float guide 162 that guides the up and down movement of the float 161. In addition, the lower body 120 may include an oil sensing section 170 disposed below the float 161.

[0048] A float guide 162 can be provided inside the reservoir 100 along the vertical direction. The float 161 can be disposed inside the float guide 162 and move vertically according to the oil volume. The oil sensing unit 170 can be housed in the receiving portion 121 formed in the lower body 120. The oil sensor inside the oil sensing unit 170 can be housed in the receiving portion 121 to sense whether the oil level between the float 161 and the oil sensing unit 170 has fallen below a predetermined level.

[0049] When the reservoir 100 contains a large amount of oil, the float 161 floats on the upper surface of the oil and moves upward, away from the oil sensing unit 170, because the density of the float 161 is less than that of the oil. As the oil level decreases and the surface level drops, the float 161 moves downward along with it, moving closer to the oil sensing unit 170. At this time, if the oil level in the reservoir 10 drops, the amount of oil between the float 161 and the oil sensing unit 170 decreases, causing the distance between the float 161 and the oil sensing unit 170 to fall below a predetermined level. The sensing sensor can detect this and warn the driver by illuminating a warning light on the vehicle's internal display unit. As an example, when the reservoir 100 malfunctions, causing oil to seep into or out of the vehicle's braking system, the oil level in the reservoir 100 drops, reducing the amount of oil between the float 161 and the oil sensing unit 170. This results in the distance between the float 161 and the oil sensing unit 170 falling below a predetermined level. The sensing sensor can detect this and warn the driver by illuminating a warning light on the display unit. This allows for additional functions such as an alarm to replace the reservoir 100 while preventing accidents.

[0050] The upper body 110 and the lower body 120 each have heat-fusion surfaces 112 and 122. When the upper body 110 and the lower body 120 are joined, the heat-fusion surfaces 112 and 122 are heat-fused together. The heat-fusion surfaces 112 and 122 of the upper body 110 and the lower body 120 can join together after melting. When the heat-fusion surfaces 112 and 122 are solidified, the upper body 110 and the lower body 120 can be joined together.

[0051] A baffle to prevent oil tilting may be provided in the oil space S. The baffle may be integrally formed with at least one of the upper body 110 and the lower body 120. The baffle may include a plurality of first baffles 140 and second baffles 150. The baffle can prevent the oil volume between the float 161 and the oil sensing unit 170 from decreasing due to oil tilting in the oil space S, even if the oil level in the reservoir 100 does not drop, thus preventing the distance between the float 161 and the oil sensing unit 170 from falling below a predetermined level.

[0052] Specifically, during acceleration, deceleration, or rolling, oil may tilt to a specific portion of the reservoir 10 due to inertia. Even if the oil level in the reservoir 100 does not drop, the amount of oil between the float 161 and the oil sensing unit 170 decreases, causing the distance between them to fall below a predetermined level. This may lead to an increase in unnecessary signals being sent by the sensing sensors to the control system, and unnecessary warning lights illuminating on the display unit. The phenomenon of excessive tilting of oil to a specific portion due to inertia can be prevented by forming a baffle in the oil space S, thereby preventing the distance between the float 161 and the oil sensing unit 170 from falling below a predetermined level even if the oil level does not drop. This reduces unnecessary signals sent by the sensing sensors to the control system and prevents unnecessary warning lights from illuminating on the display unit. In this case, the warning light is not limited to the display unit and can be located in a position visible to the driver, either inside or outside the vehicle.

[0053] The first partition 140 can be formed in the vertical direction. Multiple protrusions and recesses can be formed at the ends of the first partition 140. Multiple protrusions and recesses can be formed at the ends of the first partition 140 to allow oil to flow smoothly in the oil space S, or to control the flow of oil so that the oil is contained in the flow channel 131 of the port portion 130, thereby preventing air from entering the oil space S.

[0054] The first partition 140 may include a first upper partition 141 formed on the upper body 110 and a first lower partition 142 formed on the lower body 120. The first upper partition 141 may be integrally formed with the upper body 110, and the first lower partition 142 may be integrally formed with the lower body 120.

[0055] The second partition 150 can be disposed among a plurality of first partitions 140. The second partition 150 can be formed in a vertical direction, and a communicating space 151 communicating with the port portion 130 can be formed inside the second partition 150. The communicating space 151 can communicate with the flow channel 131 of the port portion 130 to allow oil to flow into and out of the storage tank 100. As shown, the second partition 150 can be configured as a hollow cylinder. However, it is not limited to this, and the second partition 150 can be configured as a hollow polygonal cylinder of various shapes.

[0056] An opening 152 can be formed in the wall surface 153 of the second partition 150. The opening 152 can be formed in the wall surface 153 of the second partition 150 to facilitate smooth flow of oil in the connecting space 151 and the oil space S, which communicate with the flow channel 131. The opening 152 can extend vertically to further facilitate smoother flow of oil in the connecting space 151 and the oil space S.

[0057] An opening 152 can be formed in the wall surface 153 on the opposite side of the second partition 150 and the oil injection section 111. By forming the opening 152 in the wall surface 153 on the opposite side of the second partition 150 and the oil injection section 111, the liquid reservoir 100 can be positioned forward (towards...) Figure 4 (based on the left side) and backward (with) Figure 4 When tilted to the right (based on the reference), the flow of oil in the communicating space 151 contained inside the second partition 150 is unobstructed and can always pass through the opening 152 of the second partition 150, thereby making the flow of oil in the communicating space 151 and the oil space S smoother.

[0058] The second partition 150 can be formed on the lower body 120 at a predetermined angle relative to the port portion 130. (See reference...) Figure 4 The second partition 150 can be formed on the lower body 120 at a predetermined angle relative to the port portion 130, even if the liquid storage tank 100 is tilted forward (to... Figure 4 (Referring to the left side), the oil is also contained in the communication space 151 inside the second partition 150 and the flow channel 131 inside the port portion 130, thereby preventing air from entering the oil space S through the port portion 130. However, it is not limited to this; the oil can be contained in the communication space 151 and the flow channel 131 by adjusting the tilt angle and direction between the second partition 150 and the port portion 130, thereby preventing air from entering the oil space S through the port portion 130.

[0059] As described above, the reservoir 100 for a braking system according to an embodiment of the present invention is provided with a second partition 150, and oil can be contained in the communicating space 151 inside the second partition 150 and the flow channel 131 in the port portion 130, thereby preventing air from entering the reservoir 100. Noise generation can be reduced and pedal feel and braking performance can be prevented from deteriorating by preventing air from entering the oil space S inside the reservoir 100. Furthermore, it can prevent the oil quantity between the float 161 and the oil sensing unit 170 from decreasing during acceleration, deceleration, or lateral tilting, even if the oil level in the reservoir 100 does not drop, thus preventing the distance between the float 161 and the oil sensing unit 170 from falling below a predetermined level.

[0060] Furthermore, an opening 152 can be provided in the wall 153 of the second partition 150 to allow the oil to flow smoothly. The opening 152 can be formed in the wall 153 on the opposite side of the side facing the oil injection section 111 of the second partition 150. When the reservoir 100 is tilted forward and backward, the flow of oil contained in the communicating space 151 inside the second partition 150 is unobstructed and can always pass through the opening 152 of the second partition 150.

[0061] Furthermore, the second partition 150 can be formed on the lower body 120 at a predetermined angle relative to the port portion 130. Even if the liquid storage tank 100 is tilted forward, the oil is contained in the communicating space 151 and the flow channel 131, thereby preventing air from entering the oil space S through the port portion 130.

[0062] The above description illustrates specific embodiments. However, the present invention is not limited to the above embodiments, and those skilled in the art to which this invention pertains can make various modifications without departing from the spirit of the technical concept of the invention as set forth in the appended claims.

Claims

1. A reservoir for a braking system, comprising: The upper main body is equipped with an oil injection section for injecting oil; The lower body has a port for supplying oil to the master cylinder and is connected to the upper body to form an oil space; as well as A baffle is provided in the oil space to prevent the oil from tilting. The partition includes: a plurality of first partitions formed along the vertical direction; And a second partition, disposed in the space formed between the facing surfaces of at least two of the plurality of first partitions, and having a communicating space therein that communicates with the port portion. The second partition includes a hollow sidewall that surrounds the port portion and protrudes from the interior bottom surface of the lower body. The upper end of the hollow sidewall is separated from the inner upper surface of the upper main body, and the outer side of the hollow sidewall is separated from the inner side of the lower main body.

2. The reservoir for a braking system according to claim 1, wherein, An opening is formed in the wall of the second partition.

3. The reservoir for a braking system according to claim 2, wherein, The opening is formed in the wall surface on the opposite side of the side facing the second partition and the oil injection section.

4. The reservoir for a braking system according to claim 3, wherein, The opening extends vertically.

5. The reservoir for a braking system according to claim 1, wherein, The second partition is formed on the lower body at a predetermined angle relative to the port portion.

6. The reservoir for a braking system according to claim 1, wherein, The partition is integrally formed with at least one of the upper body and the lower body.

7. The reservoir for a braking system according to claim 1, further comprising: A float moves up and down with the oil surface in the oil space to measure the amount of residual oil in the oil space; as well as A float guide guides the up-and-down movement of the float.

8. The reservoir for a braking system according to claim 7, further comprising: An oil sensing unit is disposed at the lower part of the float.

9. The reservoir for a braking system according to claim 1, wherein, The second partition is configured as a hollow cylinder.

10. The reservoir for a braking system according to claim 1, wherein, Multiple port sections and multiple second partitions are provided.

11. The reservoir for a braking system according to claim 1, wherein, The upper body further includes a liquid storage tank cover, which is detachably disposed on the upper part of the oil injection section.

12. The reservoir for a braking system according to claim 1, wherein, The upper body further includes an upper filter connected to the lower part of the oil injection section to filter the oil injected into the storage tank.

13. The reservoir for a braking system according to claim 12, wherein, The filter is integrally formed with the oil injection section.

14. The reservoir for a braking system according to claim 8, comprising: The sensing sensor detects whether the distance between the float and the oil sensing unit has fallen below a predetermined level. as well as The warning light receives a signal from the sensing sensor to illuminate.

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