KR20200144600A - Flow control valve - Google Patents

Abstract

According to the present invention, disclosed is a flow control valve, wherein a sealing unit for sealing a valve body comes in close contact with the valve body by the elastic force of an elastic unit. Moreover, a lip receives pressure generated by the flow of fluid so that the lip is deformed by the pressure and comes in close contact with a partition wall. Therefore, sealing performance between the sealing unit and the valve body can be improved.

Description

Flow control valve {FLOW CONTROL VALVE}

The present invention relates to a flow control valve having a sealing structure for the valve body.

Vehicles are equipped with various electric components, and in recent years, various drive systems using electric energy are increasing.

A drive system using such electric energy may be equipped with an inverter, an LDC for converting DC power into AC power, and a charger, and a cooling system capable of maintaining an appropriate temperature due to the heating characteristics of the electronic components including them is required. do.

To this end, the cooling system is equipped with a water pump for circulation of the cooling medium, and the cooling medium discharged from the water pump is circulated through a heat source after passing through various electrical components, thereby protecting various electrical components with heat generation characteristics from overheating. .

Accordingly, in recent years, a valve structure for controlling the flow of the cooling medium has been developed. In the case of the valve structure, a sealing structure is essentially applied for smooth flow of the cooling medium inside and stable driving of the valve body. However, in the case of the conventional sealing structure, the sealing body has a form in which the sealing body is in contact with the valve body, but there is a problem that the hermetic performance of the sealing body is deteriorated as the flow of the cooling medium is not considered. In addition, loss due to fluid flow is minimized only when the airtight performance of the sealing structure is secured, and there is a problem that the airtight performance decreases with use.

The matters described as the background art are only for enhancing an understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the prior art already known to those of ordinary skill in the art.

KR 10-1558394 B1 (2015.10.01)

The present invention has been proposed in order to solve this problem, and an object of the present invention is to provide a flow control valve in which the hermetic performance of the sealing body is improved by being affected by the flow of the cooling medium.

The flow control valve according to the present invention for achieving the above object has a larger diameter than the distribution channel on the inner surface facing the valve body and has a receiving groove in a shape surrounding the distribution channel, and between the receiving groove and the distribution channel A port portion of the valve body having a partition wall; An elastic portion inserted into the receiving groove; And one end is inserted into the receiving groove and supported by the elastic part, the other end is in contact with the valve body, and a lip protruding toward the partition is formed at one end, and the lip is deformed by the internal pressure of the receiving groove and is in close contact with the partition wall. Includes wealth.

The port portion is characterized in that the outlet side through which the fluid is discharged.

The other end of the sealing part is characterized in that it has a curved shape along the shape of the outer circumferential surface of the valve body, but is formed to have a contact point on the opposite side of the distribution pipe at the curved part.

The other end of the sealing part and the outer circumferential surface of the valve body are curved with the same curvature, but the center point of the curvature of the curved part of the other end and the center point of the curvature of the outer circumferential surface of the valve body are arranged to be spaced apart from the curved part of the other end It is characterized in that it is formed to be inclined with respect to the outer peripheral surface of the valve body.

The other end of the sealing portion is characterized in that it is formed to have a more concave curvature than the outer peripheral surface of the valve body.

As the sealing portion is formed to have a diameter smaller than that of the receiving groove, it is characterized in that it is spaced apart from the receiving groove to form a gap on the receiving groove side.

The other end of the sealing unit is characterized in that a protruding end protruding toward the distribution duct and corresponding to the extension line of the partition is formed, and a cross section of the distribution duct side and the protruding end of the partition forms a straight line.

The protruding end and the partition wall formed on the other end of the sealing part are spaced apart from each other to form a gap on the side of the distribution pipe.

The lip is characterized in that it extends with an inclination toward the partition wall in a direction inserted into the receiving groove at one end.

An exterior retainer interposed between the elastic portion and one end portion of the sealing portion and made of a rigid material; characterized in that it further comprises.

The exterior retainer comprises a support portion disposed between the elastic portion and one end portion of the sealing portion, and an extension portion extending from the support portion to surround one end portion of the sealing portion, and the extension portion is coupled to the other end of the sealing portion.

The support portion is formed to be spaced apart from the partition wall while seated at one end of the sealing portion, and the extension portion extends in a straight line and is spaced apart from the receiving groove to form a gap on the receiving groove side.

It characterized in that it further comprises a; built in one end of the sealing portion, the first internal retainer made of a rigid material.

The first internal retainer is characterized by comprising a vertical portion extending vertically along one end portion of the sealing portion and a horizontal portion spaced apart from the lip and extending in a horizontal direction from the vertical portion.

It is characterized in that a sleeve part extending so as to surround the other end is formed at one end of the sealing part.

It is characterized in that it further comprises a; a second internal retainer built in one end of the sealing portion and disposed to be spaced apart from the lip, formed to extend along the sleeve at one end of the sealing portion, and made of a rigid material.

In the flow control valve having the structure as described above, the sealing part that seals the valve body is in close contact with the valve body by the elastic force of the elastic part, and the lip is deformed by the pressure as the pressure generated by the flow of fluid is transmitted to the partition wall. By being in close contact with, the airtight performance between the sealing portion and the valve body is improved.

1 to 2 are views showing a flow control valve according to a first embodiment of the present invention.
3 to 4 are views for explaining a contact structure between a sealing part and a valve body.
5 to 6 are views showing a flow control valve according to a second embodiment of the present invention.
7 is a view showing a flow control valve according to a third embodiment of the present invention.

Hereinafter, a flow control valve according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

1 to 2 are views showing a flow control valve according to a first embodiment of the present invention, FIGS. 3 to 4 are views for explaining a contact structure between a sealing part and a valve body, and FIGS. 5 to 6 are A view showing a flow control valve according to a second embodiment, and FIG. 7 is a view showing a flow control valve according to a third embodiment of the present invention.

1 to 2, the flow control valve according to the present invention has a larger diameter than the distribution channel 11 on the inner surface facing the valve body V and has a shape that surrounds the distribution channel 11 (12) is formed, the port portion 10 of the valve body 100, the partition wall 13 is formed between the receiving groove 12 and the distribution pipe 11; An elastic portion 20 inserted into the receiving groove 12; And one end 31 is inserted into the receiving groove 12 and supported by the elastic part 20, and the other end 35 is in contact with the valve body V, and at one end 31, toward the partition wall 13 The protruding lip 32 is formed, and the lip 32 is deformed by the internal pressure of the receiving groove 12 and a sealing part 30 that is in close contact with the partition wall 13; includes. Here, the port portion 10 may be an outlet side through which the fluid is discharged, and the sealing portion 30 secures airtight performance by using a pressure generated when the fluid is distributed.

For this, the flow control valve of the present invention includes an elastic part 20 and a sealing part 30 in the port part 10 of the valve body 100, and the sealing part 30 is provided inside the valve body 100. It comes into contact with the valve body V.

Here, a port portion 10 through which fluid flows is formed in the valve body 100, and the port portion 10 is divided into a receiving groove 12 and a distribution pipe 11 by a partition wall 13. That is, the port portion 10 is formed with a receiving groove 12 having a larger diameter than the flow channel 11 through which the fluid flows, and the partition wall 13 between the receiving groove 12 and the distribution channel 11 is a valve By extending in a straight line toward the sieve V, the receiving groove 12 and the distribution channel 11 are partitioned.

The fluid is circulated in the distribution channel 11 of the port portion 10, and an elastic portion 20 and a sealing portion 30 are provided in the receiving groove 12. In the case of the elastic part 20, it is composed of a spring to provide elastic force to the sealing part 30, and in the case of the sealing part 30, one end 31 is inserted into the receiving groove 12 and supported by the elastic part 20. And the other end 35 is in contact with the valve body V. In particular, as the lip 32 protrudes from one end 31 of the sealing part 30 and the lip 32 contacts the partition wall 13 to close the distribution channel 11, the receiving groove 12 and the distribution pipe The furnace 11 is airtight. The lip 32 of the sealing part 30 is made to be deformed by the internal pressure applied to the receiving groove 12, so that the lip 32 is in close contact with the partition wall 13 by the internal pressure of the receiving groove 12. The sealing function is improved.

When described in detail with respect to the present invention described above, as shown in FIG. 2, the sealing portion 30 is formed so that one end 31 has a smaller diameter than the receiving groove 12, so that the receiving groove 12 It may be spaced apart from and to form a gap A1 on the receiving groove side.

As such, one end 31 of the sealing part 30 is formed to have a diameter smaller than that of the receiving groove 12, so that when the one end 31 is inserted into the receiving groove 12, one end of the sealing part 30 A receiving groove-side gap A1 is formed between the part 31 and the outer wall of the valve body 100. When the fluid flows into the receiving groove 12 through the gap A1 on the receiving groove side, pressure is generated in the receiving groove 12. In this way, the receiving groove-side gap A1 is formed between the valve body 100 and the one end 31 of the sealing part 30, so that internal pressure may be generated in the receiving groove 12.

Preferably, the facing portion 31 of the sealing portion 30 and the valve body 100 are formed to extend in a straight line so that the fluid flowing into the receiving groove 12 can be smoothly moved, and the valve By forming the chamfer 101 in the body 100, it is possible to move the fluid more smoothly.

On the other hand, the other end 35 of the sealing portion 30 protrudes toward the distribution channel 11 and a protruding end 36 corresponding to the extension line of the barrier rib 13 is formed, and the distribution channel 11 of the barrier rib 13 ) Side cross-section and the cross-section of the protruding end 36 may be formed to form a straight line.

As can be seen in FIG. 2, the protruding end 36 protrudes from the other end 35 of the sealing part 30, thereby increasing the contact area between the other end 35 of the sealing part 30 and the valve body V The airtight performance is secured. In addition, the protruding end 36 is formed to form a straight line with the cross section of the partition wall 13 on the side of the distribution channel 11, thereby reducing interference with the flow of the fluid flowing through the distribution channel 11 so that the fluid can flow smoothly. have.

Here, the protruding end 36 and the partition wall 13 formed on the other end 35 of the sealing part 30 may be spaced apart from each other to form a gap A2 on the side of the distribution channel. To this end, the extension length of the partition wall 13 or the thickness of the protruding end 36 can be adjusted, and a distribution channel side gap A2 is formed between the protruding end 36 and the partition wall 13, thereby, the distribution pipe 11 ), the lip 32 of the sealing part 30 may be brought into tighter contact with the partition wall 13 by the fluid flowing in). In other words, as the fluid flows through the distribution channel 11, the pressure on the side of the distribution channel is low and the pressure inside the receiving groove 12 increases, and the fluid flows from a high pressure place to a low place. ) Is to be pressed toward the partition wall (13). For this reason, the lip 32 of the sealing part 30 is strongly in close contact with the partition wall 13, and airtightness performance is increased.

Here, the lip 32 may extend with an inclination toward the partition wall 13 in a direction inserted into the receiving groove 12 from the one end 31. In this way, the lip 32 protrudes toward the partition wall 13 and protrudes with an inclination in the direction into which the receiving groove 12 is inserted, so that the lip 32 faces the partition wall 13 when the internal pressure acts on the receiving groove 12. It may be deformed so as to be pressed to be in close contact with the partition wall 13. That is, the lip 32 is in close contact with the partition wall 13 as the lip 32 is deformed to open at the one end 31 by the internal pressure of the receiving groove 12.

As a result, fluid is introduced through the gap A1 on the receiving groove side between the valve body 100 and the sealing part 30 to generate internal pressure inside the receiving groove 12, and the internal pressure inside the receiving groove 12 circulates. By acting toward the pipe-side gap A2, the lip 32 of the sealing portion 30 is pressed in a direction in close contact with the partition wall 13, so that the airtight performance between the lip 32 and the partition wall 13 is improved.

On the other hand, the other end 35 of the sealing part 30 has a curved shape along the outer circumferential shape of the valve body V, but has a contact point T on the opposite side of the distribution pipe 11 at the curved part. Can be formed.

That is, the other end 35 of the sealing part 30 is formed to be bent along the shape of the outer circumferential surface of the valve body V, so that a contact area between the sealing part 30 and the valve body V can be secured. In addition, the other end portion 35 of the sealing portion 30 is formed to have a contact point T on the opposite side of the distribution pipe 11 at a bent portion when contacting the valve body V, so that the valve body V In a state in which) is positioned to close the distribution channel 11, the fluid may pass through the sealing unit 30 and prevent it from moving toward the distribution channel 11. Here, the contact T may be a position having the greatest adhesion among the contact portions between the other end 35 of the sealing unit 30 and the valve body V, which is the other end 35 of the sealing unit 30 The adhesion can be different by adjusting the thickness of the.

In the present invention, the port portion 10 may be an outlet side through which fluid is discharged. Here, when the valve body (V) is positioned to close the distribution channel 11, the fluid inside the valve body 100 should not flow through the distribution channel 11, the other end 35 of the sealing portion 30 The contact (T) of the valve body (V) and the valve body (V) is formed on the opposite side of the distribution pipe (11), so that fluid does not flow between the other end (35) of the sealing part (30) and the valve body (V). . If the contact (T) of the other end (35) of the sealing part (30) and the valve body (V) are formed at different positions, the fluid between the other end part (35) of the sealing part (30) and the valve body (V) A gap through which is introduced is formed, and accordingly, the other end 35 of the sealing part 30 is deformed to open with respect to the valve body V, so that the sealing function may be deteriorated.

For this, as an embodiment, as shown in FIG. 3, the other end 35 of the sealing part 30 and the outer circumferential surface of the valve body V have a curved shape with the same curvature, but the other end 35 The center point of the curvature of the curved portion of the valve body and the center point of the curvature of the outer peripheral surface of the valve body are arranged to be spaced apart, so that the curved portion of the other end portion 35 may be formed to be inclined with respect to the outer peripheral surface of the valve body (V).

For this reason, when the sealing part 30 is pressed by the elastic part 20 to contact the valve body V, the other end 35 of the sealing part 30 is at the opposite side of the distribution channel 11 first. According to the contact, the valve body V may be contacted with a stronger adhesion than other parts. In addition, the other end 35 of the sealing part 30 and the outer circumferential surface of the valve body V are formed to be bent at the same curvature, so that the contact area between the other end 35 of the sealing part 30 and the valve body V Is secured.

Meanwhile, as another embodiment, as shown in FIG. 4, the other end portion 35 of the sealing portion 30 may be formed to have a more concave curvature than the outer peripheral surface of the valve body V.

For this reason, the other end 35 of the sealing part 30 can form two contact points T with respect to the contact part of the valve body V. In addition, the other end 35 of the sealing part 30 is formed to have a more concave curvature than the outer circumferential surface of the valve body V, so that the sealing part 30 is pressed by the elastic part 20 when the other end 35 ) Is more smoothly deformed to secure the adhesion to the valve body (V).

Meanwhile, according to the present invention, a retainer for protecting the sealing part 30 is provided, and the retainer may be applied in various embodiments.

As a first embodiment, as shown in FIG. 2, an exterior retainer 40 interposed between the elastic part 20 and the one end 31 of the sealing part 30 and made of a rigid material; may be further included. have. In this way, the outer retainer 40 is provided between the elastic part 20 and the one end 31 of the sealing part 30, so that the sealing part 30 is in direct contact with the elastic part 20. ) Is prevented, the shape of the sealing part 30 is preserved, and a force can be transmitted in the direction in which the sealing part 30 presses the valve body V by the elastic force of the elastic part 20.

Such an exterior retainer 40 includes a support part 41 disposed between the elastic part 20 and one end part 31 of the sealing part 30 and the one end part 31 of the sealing part 30 in the support part 41. It is made of an extended portion 42 extending so as to be wrapped, and the extended portion 42 may be coupled to the other end portion 35 of the sealing portion 30.

That is, the exterior retainer 40 may be formed in the form of a'┏'-shaped cap as it is formed of the support part 41 and the extension part 42. In this way, the exterior retainer 40 is formed in a shape surrounding the one end 31 of the sealing part 30, so that even if the elastic force of the elastic part 20 is applied to the one end 31 of the sealing part 30, one end (31) excessive shape change is prevented. In addition, as the extension part 42 is coupled to the other end 35 of the sealing part 30, the outer retainer 40 has a lip 32 formed at one end 31 due to the internal pressure of the receiving groove 12. It can be deformed, and the sealing part 30 is moved toward the valve body V by the elastic force of the elastic part 20 so as to be in close contact with the valve body V.

Here, the support part 41 is formed to be spaced apart from the partition wall 13 in a state seated on the one end 31 of the sealing part 30, and the extension part 42 extends in a straight line and the receiving groove 12 and It may be spaced apart to form a gap A1 on the receiving groove side.

Accordingly, in a state where the one end 31 of the sealing part 30 is wrapped in the exterior retainer 40, the internal pressure of the receiving groove 12 acts as a spaced apart space between the support part 41 and the partition wall 13 Thus, the lip 32 formed on the sealing part 30 can be smoothly deformed. In addition, a gap A1 on the receiving groove side is formed between the valve body 100 and the extension part 42, so that internal pressure may be generated by the fluid flowing into the receiving groove 12, and the extension part 42 and the valve body Since the 100 is formed to extend in a straight line, the fluid flowing into the receiving groove 12 can be smoothly moved.

Meanwhile, as a second embodiment, as shown in FIGS. 5 to 6, a first internal retainer 50 built in one end 31 of the sealing part 30 and made of a rigid material; may be further included. have.

The first internal retainer 50 may be made of a metal material that is a rigid material, and is embedded in one end 31 of the sealing part 30 to prevent deformation of the sealing part 30. Accordingly, the sealing part 30 is preserved in shape, and the force can be transmitted in the direction of pressing the valve body V by the elastic force of the elastic part 20. In addition, as the first internal retainer 50 is embedded in the one end 31 of the sealing part 30, the size of the sealing part 30 is reduced.

This first built-in retainer 50 is spaced apart from the vertical portion 51 and the lip 32 vertically extending along the one end 31 of the sealing portion 30 and extending in the horizontal direction from the vertical portion 51. It may be made of a horizontal portion 52.

That is, the first internal retainer 50 may be formed in a'┗' shape as it is composed of a vertical portion 51 and a horizontal portion 52, and the vertical portion 51 and the horizontal portion 52 are lip 32 ), so that the lip 32 is smoothly deformed without interfering with the deformation of the lip 32 and is in close contact with the partition wall 13. Accordingly, the first internal retainer 50 maintains its shape so that the deformation of the one end 31 forming the sealing part 30 is minimized, but does not interfere with the lip 32 so that the lip 32 is the receiving groove 12 It can be smoothly deformed by the internal pressure to maintain airtight performance.

Meanwhile, as a third embodiment, as shown in FIG. 7, a sleeve portion 33 extending so as to surround the other end 35 may be formed at one end 31 of the sealing portion 30. In this way, as the sealing part 30 extends so that the sleeve part 33 surrounds the other end 35 from the one end 31, the rigidity of the one end 31 of the sealing part 30 may be secured. In addition, the sleeve portion 33 extends with respect to the receiving groove 12 and serves as a guide so that the fluid inside the valve body 100 moves toward the receiving groove 12.

In particular, as the sleeve portion 33 extends to surround the other end portion 35 in the sealing portion 30, the sleeve portion 33 is located on the opposite side of the distribution channel 11. Accordingly, when the sealing part 30 is pressed by the elastic part 20, the pressing force of the elastic part 20 is induced toward the contact T side of the other end 35, and the valve body V ), the airtight performance is increased in the closed position.

A second internal retainer 60 made of a rigid material may be embedded in one end 31 of the sealing part 30. In the case of the second internal retainer 60, it is embedded in the one end 31 of the sealing part 30 and is disposed to be spaced apart from the lip 32, and the sleeve part 33 at the one end 31 of the sealing part 30 By being formed to extend along the line, one end 31 of the sealing part 30 can maintain its shape. Due to this, the second internal retainer 60 maintains its shape so that the deformation of the sealing part 30 is minimized, but does not interfere with the lip 32 so that the lip 32 is smoothly deformed by the internal pressure of the receiving groove 12 So that the airtight performance is maintained.

The external retainer 40, the first internal retainer 50, and the second internal retainer 60 described above can be selectively applied according to the design of the sealing part 30, and can be configured in various forms by combining a plurality of retainers. I can.

In the flow control valve having the structure as described above, the sealing portion 30 for sealing the valve body V is deformed by receiving pressure generated by the fluid to increase the sealing performance. In addition, the port portion 10 of the valve body 100 is divided into a receiving groove 12 and a distribution channel 11 by a partition wall 13, and a sealing supported by the elastic portion 20 in the receiving groove 12 As the portion 30 is provided, the size of the sealing portion 30 is reduced, and durability of the sealing portion 30 is improved by various types of retainers.

Although the present invention has been illustrated and described in connection with specific embodiments, it is in the art that the present invention can be variously improved and changed within the scope of the technical spirit of the present invention provided by the following claims. It will be obvious to a person of ordinary knowledge.

100: valve body 10: port part
11: Distribution route 12: Reception home
13: bulkhead 20: elastic part
30: sealing part 31: one end part
32: lip 33: sleeve
35: other end 36: protruding end
40: exterior retainer 41: support
42: extension part 50: first internal retainer
51: vertical portion 52: horizontal portion
60: the second internal retainer

Claims (16)

A port portion of the valve body having a larger diameter than the distribution pipe and having a receiving groove formed on the inner surface facing the valve body and surrounding the distribution pipe, and having a partition wall formed between the receiving groove and the distribution pipe;
An elastic portion inserted into the receiving groove; And
One end is inserted into the receiving groove and supported by the elastic part, the other end is in contact with the valve body, and a lip protruding toward the partition wall is formed at one end, and the lip is deformed by the internal pressure of the receiving groove and is in close contact with the partition wall. Flow control valve containing; The method according to claim 1,
Flow control valve, characterized in that the port portion is an outlet side through which the fluid is discharged. The method according to claim 1,
A flow control valve, characterized in that the other end of the sealing part has a curved shape along the outer circumferential shape of the valve body, but formed to have a contact point on the opposite side of the distribution pipe at the curved part. The method of claim 3,
The other end of the sealing part and the outer circumferential surface of the valve body have a curved shape with the same curvature, but the center point of the curvature of the curved part of the other end and the center point of the curvature of the outer circumferential surface of the valve body are arranged to be spaced apart from the curved part of the other end. Flow control valve, characterized in that formed inclined with respect to the outer peripheral surface of the valve body. The method of claim 3,
Flow control valve, characterized in that the other end of the sealing portion is formed to have a more concave curvature than the outer peripheral surface of the valve body. The method according to claim 1,
A flow control valve, characterized in that the sealing portion is formed so as to have a diameter smaller than that of the receiving groove, thereby forming a gap on the receiving groove side by being spaced apart from the receiving groove. The method according to claim 1,
A flow control valve, characterized in that at the other end of the sealing portion, a protruding end protruding toward the distribution pipe and corresponding to the extension line of the partition wall is formed, and a cross section of the distribution pipe side and the protruding end of the partition forms a straight line. The method of claim 7,
A flow control valve, characterized in that the protruding end and the partition wall formed on the other end of the sealing part are spaced apart from each other to form a gap on the side of the distribution pipe. The method according to claim 1,
A flow control valve, characterized in that the lip extends with an inclination toward the partition wall in a direction inserted into the receiving groove at one end. The method according to claim 1,
An outer retainer interposed between the elastic portion and one end portion of the sealing portion and made of a rigid material; a flow control valve further comprising. The method of claim 10,
The external retainer comprises a support portion disposed between the elastic portion and one end portion of the sealing portion, and an extension portion extending from the support portion to surround one end portion of the sealing portion, and the extension portion is coupled to the other end of the sealing portion. The method of claim 11,
The support part is formed to be spaced apart from the partition wall while seated at one end of the sealing part,
The flow control valve, characterized in that the extension part extends in a straight line and is spaced apart from the receiving groove to form a gap on the receiving groove side. The method according to claim 1,
The flow control valve further comprising a; a first internal retainer built in one end of the sealing portion and made of a rigid material. The method of claim 13,
The first internal retainer comprises a vertical portion extending vertically along one end of the sealing portion and a horizontal portion spaced apart from the lip and extending in a horizontal direction from the vertical portion. The method according to claim 1,
Flow control valve, characterized in that the sleeve portion extending so as to surround the other end is formed at one end of the sealing portion. The method of claim 15,
A flow control valve comprising: a second internal retainer built in one end of the sealing unit and disposed to be spaced apart from the lip, formed to extend along the sleeve at one end of the sealing unit, and made of a rigid material.

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