KR-102963388-B1 - Device for dispensing fluid

KR102963388B1KR 102963388 B1KR102963388 B1KR 102963388B1KR-102963388-B1

Abstract

The present invention introduces a fluid injection mechanism comprising: a housing having an inlet and an outlet formed therein for fluid to flow in and out; a passage member formed in a shape that blocks the space between the inlet and the outlet inside the housing, and has an opening formed in a shape where the part facing the inlet is partially open; a rotator provided inside the housing that moves between the passage member and the inlet, and has a fluid passage formed in the longitudinal direction of movement; and a rotation guide structure that guides the rotator to rotate by a certain rotational displacement during the movement of the rotator, thereby aligning the fluid passage with the opening at a certain period when fluid flows into the inlet.

Inventors

김정빈
홍승표

Assignees

현대자동차주식회사
기아 주식회사

Dates

Publication Date: 20260508
Application Date: 20211111

Claims (12)

A housing having an inlet and an outlet formed therein for fluid to flow in and out; A passage member formed in a shape that blocks the space between the inlet and outlet inside the housing, and has an opening formed in a shape where the part facing the inlet is partially open; A rotator provided inside the above housing, which moves between a passage member and an inlet part, and has a fluid passage formed in the longitudinal direction of movement; and A fluid injection mechanism comprising: a rotation guide structure that guides the rotator to rotate by a certain rotational displacement during the movement of the rotator, thereby aligning the fluid passage with the opening at a certain period when the fluid flows into the inlet section.
In claim 1, The above rotary guide structure is, Rotation guide projection formed on the outer surface of the rotator; A fluid injection mechanism characterized by including a rotation guide groove formed in a zigzag shape along the circumferential direction of the inner surface of the housing, into which a guide projection is inserted so that a rotator moves and rotates along the zigzag shape.
In claim 2, The above-mentioned rotation guide groove is, A fluid injection mechanism characterized by having a forward guide section in which the rotator moves forward and rotates toward the discharge section, and a backward guide section in which the rotator moves backward and rotates toward the inlet section, which are repeatedly connected.
In claim 3, The above forward guide section is, A first forward section formed inclined toward the discharge section at the connection point on the inlet side where the front section of the reverse guide section and the front section of the forward guide section are connected; A fluid injection mechanism characterized by including: a second forward section formed at the end of the first forward section, inclined toward the discharge section with a steeper slope than the first forward section, and connected to a discharge-side connection point where the rear end of the reverse guide section and the rear end of the forward guide section are connected.
In claim 3, The above-mentioned rotation guide groove is, A fluid injection mechanism characterized by being formed in accordance with a cycle intended to align the fluid passage with the opening by the fluid flowing into the inlet.
In claim 3, A fluid injection mechanism characterized by the rotator coming close to a passage member when the rotator moves to the maximum extent toward the discharge part.
In claim 1, A movement guide bar is formed on the passage member toward the rotator; A fluid injection mechanism characterized by a movement guide hole formed along the axis center of the rotator, wherein the movement of the rotator is guided while a movement guide bar is inserted into the movement guide hole.
In claim 7, A fluid injection mechanism further comprising: an elastic member that provides an elastic restoring force in the direction in which the rotator moves backward relative to the direction in which it moves forward toward the discharge part.
In claim 8, With the elastic member inserted into the moving guide bar, one end of the elastic member is supported by the passage member; A fluid injection mechanism characterized in that the other end of the above-mentioned elastic part is supported by a rotator.
In claim 1, When a fluid exceeding a certain pressure flows into the housing through the inlet, the rotator moves while rotating along the rotary guide structure toward the outlet due to the pressure of the fluid; A fluid injection mechanism characterized by the fact that when the rotator is moved to its maximum position toward the discharge port and fluid exceeding a certain pressure is not introduced into the housing through the inlet port, the rotator moves while rotating along the rotation guide structure toward the inlet port by the elastic restoring force of the elastic part.
In claim 1, When the fluid passage coincides with the opening of the passage member while the rotator is moved toward the discharge section, fluid flowing into the fluid passage through the inlet section passes through the opening and is discharged to the discharge section; A fluid injection mechanism characterized by the fact that when the fluid passage coincides with the blocking portion of the passage member while the rotator is moved toward the discharge portion, the fluid flowing into the fluid passage through the inlet portion is blocked by the blocking portion.
In claim 1, A fluid injection mechanism characterized by being formed with a cross-sectional shape in which the cross-sectional area of the fluid passage and the cross-sectional area of the opening correspond to each other.

Description

Fluid dispensing device The present invention relates to a fluid injection mechanism that mechanically and simply controls the number of fluid injections in a path other than the main path without a significant increase in cost by discharging and injecting a fluid introduced into the interior according to a predetermined cycle. The washer fluid motor used to spray the car's washer fluid can only distribute the fluid in two directions from the washer fluid reservoir. Accordingly, if you intend to spray washer fluid through additional routes, such as the headlamp washer, you must install an additional motor. In particular, in cases where simultaneous operation with the windshield washer is not required, such as with the headlamp washer (e.g., the headlamp washer operates once when the windshield washer operates three times), the injection cycle of the headlamp washer must be controlled electronically. However, this has the problem that the washer fluid injection system becomes more complex, as well as the cost and weight increase, because an electronic control unit for controlling the injection cycle must be added. The matters described above as background technology are intended only to enhance understanding of the background of the present invention and should not be construed as an acknowledgment that they constitute prior art already known to those skilled in the art. FIG. 1 is a drawing illustrating a washer fluid injection device to which a fluid injection mechanism according to the present invention is applied. FIG. 2 is a drawing illustrating the external shape of a fluid injection mechanism according to the present invention. FIG. 3 is a diagram showing the fluid injection mechanism according to the present invention in disassembled form. FIG. 4 is a drawing showing the internal structure of a fluid injection mechanism according to the present invention projected. FIG. 5 is a cross-sectional view of a fluid injection mechanism according to the present invention. FIG. 6 is a diagram illustrating the operation in which a fluid passage aligns with an opening and fluid is discharged according to the operation of the rotator of the present invention. FIG. 7 is a diagram illustrating the operation in which the fluid passage coincides with the blocking part and the fluid is blocked according to the operation of the rotator of the present invention. Specific structural or functional descriptions of the embodiments of the present invention disclosed in this specification or application are merely illustrative for the purpose of explaining embodiments according to the present invention, and embodiments according to the present invention may be implemented in various forms and should not be interpreted as being limited to the embodiments described in this specification or application. Since embodiments according to the present invention may be subject to various modifications and may take various forms, specific embodiments are illustrated in the drawings and described in detail in this specification or application. However, this is not intended to limit embodiments according to the concept of the present invention to specific disclosed forms, and it should be understood that they include all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention. Terms such as "first," "second," etc., may be used to describe various components, but said components shall not be limited by said terms. For the sole purpose of distinguishing one component from another, for example, without departing from the scope of rights according to the concept of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. Conversely, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between. Other expressions describing the relationship between components, such as "between" and "exactly between," or "adjacent to" and "directly adjacent to," should be interpreted in the same way. The terms used herein are merely for describing specific embodiments and are not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as “comprising” or “having” are intended to specify the existence of the described features, numbers, steps, actions, components, parts, or combinations thereof, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Unless oth