KR-102962267-B1 - RESERVOIR TANK FOR VEHICLE

KR102962267B1KR 102962267 B1KR102962267 B1KR 102962267B1KR-102962267-B1

Abstract

A vehicle reservoir tank is disclosed. A vehicle reservoir tank according to an embodiment of the present invention comprises: a main body in which coolant flowing into the interior is stored; at least one inlet formed in the main body to introduce coolant into the main body; at least one outlet formed in the main body to selectively discharge coolant stored in the main body; a bubble separator provided inside the main body to separate bubbles contained in the coolant flowing into the main body through the inlet; and a reservoir cap mounted on the upper part of the main body.

Inventors

김연호

Assignees

현대자동차 주식회사
기아 주식회사

Dates

Publication Date: 20260507
Application Date: 20210610

Claims (20)

Main body where the coolant flowing into the interior is stored; At least one inlet formed in the main body to allow cooling water to flow into the main body; At least one outlet formed in the main body to selectively discharge the coolant stored in the main body; A bubble separation unit provided inside the main body to separate bubbles contained in the cooling water flowing into the main body through the inlet; and A reservoir cap mounted on the upper part of the main body; comprising, The above main body is A vehicle reservoir tank characterized by a first body and a second body, each having an interior partitioned to allow coolant to flow in, being integrally combined.
In paragraph 1, The above bubble separation part A guide that is positioned within the main body at a location corresponding to the inlet and guides the cooling water introduced through the at least one inlet; and A cyclone section that extends integrally from the above guide and separates bubbles contained in the cooling water using a cyclone principle that utilizes centrifugal force generated as the cooling water introduced into the interior rotates and flows in one direction from top to bottom along the inner surface of the main body; A vehicle reservoir tank characterized by including
In paragraph 2, The above cyclone part A vehicle reservoir tank characterized by being formed in a conical coil shape with a diameter that gradually decreases from the top to the bottom.
In paragraph 2, The above main body is A vehicle reservoir tank characterized by being formed in a conical shape in which the upper diameter is larger than the lower diameter, corresponding to the shape of the cyclone section.
In paragraph 1, On the upper part of the main body above A vehicle reservoir tank characterized by having a bubble collecting part formed to collect bubbles separated from the coolant by the bubble separating part through a through hole communicating with the interior.
In paragraph 5, The above bubble collection unit A vehicle reservoir tank characterized by including a collection plate that protrudes from the upper surface of the main body and forms a collection space inside to collect bubbles discharged from the through hole.
In paragraph 6, The above-mentioned collection plate is A vehicle reservoir tank characterized by being formed integrally with the main body and having the reservoir cap mounted on the upper part.
In paragraph 1, The above at least one inlet is A vehicle reservoir tank characterized by being formed perpendicular to the height direction of the main body on the outer upper side of the main body.
In paragraph 1, The above at least one discharge port is A vehicle reservoir tank characterized by being formed perpendicular to the height direction of the main body at the outer lower portion of the main body and protruding parallel to the at least one inlet from the main body in the same direction.
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In paragraph 1, Inside the first body and the second body A vehicle reservoir tank characterized by each having the above-mentioned bubble separation unit.
In paragraph 1, On the upper part of the first body and the second body A vehicle reservoir tank characterized by having a bubble collecting section formed to collect bubbles separated from the coolant by each of the bubble separating sections through first and second through holes communicating with the interiors of the first body and the second body.
In Paragraph 12, The above bubble collection unit A vehicle reservoir tank characterized by including a collecting plate that protrudes from the upper surface of the first body and the second body and forms a collecting space inside to collect bubbles discharged from the first and second through holes.
In Paragraph 13, The above-mentioned collection plate is A vehicle reservoir tank formed integrally with the first and second bodies, characterized by having the reservoir cap mounted on the upper part.
In paragraph 1, The above at least one inlet is A first inlet formed perpendicular to the height direction of the first body on the outer upper side of the first body; and A second inlet formed perpendicular to the height direction of the second body on the outer upper side of the second body; A vehicle reservoir tank characterized by including
In paragraph 15, The above first inlet and the above second inlet are A vehicle reservoir tank characterized by being arranged in a straight line in a direction perpendicular to the height direction of the main body and protruding from the first body and the second body, respectively, toward opposite directions.
In paragraph 15, The above at least one discharge port is A first outlet formed perpendicular to the height direction of the first body at the outer lower portion of the first body; and A second outlet formed perpendicular to the height direction of the second body at the outer lower part of the second body; A vehicle reservoir tank characterized by including
In Paragraph 17, The above first discharge port and the above second discharge port are A vehicle reservoir tank characterized by being arranged in a straight line in a direction perpendicular to the height direction of the main body and protruding from the first body and the second body, respectively, toward opposite directions.
In Paragraph 17, The above-mentioned first discharge port is A vehicle reservoir tank characterized by being arranged parallel to the first inlet in the same direction from the first body in correspondence with the first inlet.
In Paragraph 17, The above second outlet is A vehicle reservoir tank characterized by being arranged parallel to the second inlet in the same direction from the second body in correspondence with the second inlet.

Description

Vehicle Reservoir Tank The present invention relates to a vehicle reservoir tank, and more specifically, to a vehicle reservoir tank capable of efficiently separating and discharging air bubbles contained in coolant. Generally, hybrid or electric vehicles are equipped with separate cooling systems for cooling the engine, motor, or electrical components, and each cooling system is equipped with a separate reservoir tank. Such a reservoir tank can perform two main functions. First, the first function is to store coolant cooled by the radiator to preserve a surplus, thereby maintaining a constant flow rate of the coolant circulating through the cooling system. The second function is to separate air bubbles contained in the cooling water circulating through the cooling system and discharge them to the outside. If air bubbles are dissolved in the coolant, the coolant flows while containing bubbles with a low heat transfer coefficient. As the bubbles occupy a certain volume in the coolant circulation path, the total flow rate of the flowing coolant decreases, and at the same time, the heat exchange performance is lowered, which reduces the cooling efficiency of the radiator and, consequently, may lead to a decrease in the cooling performance of the engine or electrical components. In other words, when air bubbles are dissolved in the coolant discharged after cooling the engine or electrical components, the coolant flows with the air bubbles containing a low heat transfer coefficient, and as a result, the flow rate of the coolant in the coolant circulation path decreases and the heat exchange performance decreases, which has the disadvantage of reducing the overall cooling efficiency of the radiator and generating noise from the flow of the coolant. In addition, if the cooling efficiency of the radiator decreases, the coolant is supplied to the engine, electrical components, or motor without being cooled to the required temperature, resulting in inadequate cooling and a disadvantage of reduced overall vehicle cooling performance. To prevent these problems, conventional methods have been applied to minimize the flow of cooling water by installing baffles inside the reservoir tank to separate air bubbles contained in the cooling water, or by designing the cooling water inlet and outlet and installing separate structures inside. However, these methods cause problems such as increased manufacturing labor and costs for the reservoir tank, so there is a need for technological development to more efficiently separate and discharge air bubbles contained in the cooling water from the reservoir tank. The matters described in this background technology section are written to enhance understanding of the background of the invention and may include matters that are not prior art already known to those skilled in the art to which this technology belongs. FIG. 1 is a perspective view of a vehicle reservoir tank according to an embodiment of the present invention. FIG. 2 is a projected perspective view of a vehicle reservoir tank according to an embodiment of the present invention. Figure 3 is a cross-sectional view along line AA of Figure 2. FIG. 4 is a perspective view of a cyclone section applied to a vehicle reservoir tank according to an embodiment of the present invention. FIG. 5 is an operating state diagram of a vehicle reservoir tank according to an embodiment of the present invention. FIG. 6 is a perspective view of a vehicle reservoir tank according to another embodiment of the present invention. FIG. 7 is a projected perspective view of a vehicle reservoir tank according to another embodiment of the present invention. Figure 8 is a cross-sectional view along the BB line of Figure 7. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Prior to this, it should be understood that the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention, and that various equivalents and modifications that can replace them may exist at the time of filing this application. To clearly explain the present invention, parts unrelated to the explanation have been omitted, and the same reference numerals are used for identical or similar components throughout the specification. The size and thickness of each component shown in the drawings are depicted arbitrarily for the convenience of explanation, and thus the present invention is not necessarily limited to what is shown in the drawings; furthermore, the thickness has been enlarged to clearly represent various parts and regions. And throughout the specification, when a part is described as “comprising” a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional