KR101422610B1 - Flow Control Valve And Air conditioner for an Automobile equipped with same - Google Patents

Abstract

The present invention relates to a flow rate control valve and an air conditioner for a vehicle using the same. More particularly, the present invention relates to a flow rate control valve for controlling a flow amount of a heat exchange medium flowing into a required portion of a heat exchange medium, A flow rate control valve capable of increasing the cooling / heating efficiency by using the flow rate control valve, and a vehicle air conditioner using the same.

The flow control valve 300 of the present invention includes a first port 321 connected to the first inlet pipe 211 of the heat exchange medium supply unit to allow the heat exchange medium to flow from the heat exchange medium supply unit, A second port 322 connected to the second inlet pipe 212 of the heat exchange medium requiring unit 200 so as to move the medium, a second port 322 connected to the second inlet pipe 212 of the heat exchange medium requiring unit 200, A third port 323 connected to the first outlet pipe 213 of the unit 200 and a fourth port 324 connected to the second outlet pipe 214 to discharge the heat exchange medium, The first fluid unit 311, the second fluid unit 312, the third fluid unit 313, and the fourth fluid unit 313, which are connected to the first port 321 to the fourth port 324 and through which the heat exchange medium flows, A valve seat portion 327 is formed on the lower surface of one of the first and second fluid portions 311 and 313 Body 310; And the third fluid unit 313 is rotated with respect to the center of the main body 310 so that the fluid flows into the main body 310 through the first inlet pipe 211 The amount of the heat exchange medium flowing into the heat exchange medium requiring part 200 through the second inlet pipe 212 and the amount of bypassed through the second outlet pipe 214, A valve plate 330 on which a corresponding portion 332 corresponding to the valve seat portion 327 of the valve seat 330 is formed; And is formed to include a plurality of protrusions.

Heater core, port, mold, core

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flow control valve and an air conditioner for a vehicle,

The present invention relates to a flow rate control valve and an air conditioner for a vehicle using the same. More particularly, the present invention relates to a flow rate control valve for controlling a flow amount of a heat exchange medium flowing into a required portion of a heat exchange medium, A flow rate control valve capable of increasing the cooling / heating efficiency by using the flow rate control valve, and a vehicle air conditioner using the same.

In recent years, interest in the environment and energy has been increasing worldwide in the automobile industry, and studies for improving fuel efficiency have been made. Research and development for lightening, miniaturization and high performance are continuously carried out in order to satisfy the needs of various consumers. In particular, in a vehicle air conditioning system, it is difficult to secure a sufficient space in the engine room. Therefore, the automotive air conditioner is required to be compact and capable of effectively controlling the temperature and the airflow.

Generally, a vehicle air conditioner is a device that can maintain the front and rear visibility of the driver by keeping the interior of the vehicle at a proper temperature in the summer or winter season, or by removing the property of being caught in the window of a car during rainy or winter season, The air flowing outside the vehicle is passed through the evaporator or the heater core through which cooling water flows and is distributed in various directions in the vehicle interior through a vent communicated with each part of the vehicle interior in a cool or warm state .

FIG. 1 is a cross-sectional view illustrating an example of a conventional air conditioner for a vehicle. Referring to FIG. 1, a conventional air conditioner includes a vent 11a, 12d, and 13d, , 12, 13) are installed; A blowing unit 14 connected to an air inlet of the air conditioning case 10 to blow outside air; An evaporator (E) and a heater core (H) provided in the air conditioning case (10); And a tempo door 15 for controlling the opening degree of the cool air passage P1 and the warm air passage P2 of the air conditioning case 10. [

In the conventional vehicle air conditioner configured as described above, when the cooling cycle is activated, the tempo door 15 opens the cold air passage P1 and closes the warm air passage P2. Therefore, the air blown by the blowing fan 14 passes through the evaporator E and is exchanged with the cooling water flowing in the evaporator E to be changed into a cool air. Then, the air flows toward the cool air passage P1, Air is discharged through the vents 11, 12, and 13 to the interior of the vehicle, thereby cooling the interior of the vehicle.

When the heating cycle is activated, the temp door 15 closes the cold air passage P1 and simultaneously opens the warm air passage P2. Then, the air blown through the warm air passage P2 flows through the warm air passage P2, Exchanges heat with the cooling water flowing in the heater core H while passing through the heater core H and is discharged to the interior of the vehicle through open vents 11, 12 and 13, do.

FIG. 2 is a perspective view showing a conventional heater core H, and shows two representative forms of a conventional heater core H. FIG. 2 (a) shows a U-turn type heater core, 2 (b) shows a heater core of one-way type. 2, the conventional heater core H includes a first header tank 21 and a second header tank 22 which are spaced apart from each other by a predetermined distance, An inlet pipe 25 connected to the first header tank 21 or the second header tank 22 and through which the heat exchange medium flows and an outlet pipe 26 through which the heat exchange medium is discharged, A plurality of tubes 23 having both ends fixed to the first header tank 22 and the second header tank 22 to form a heat exchange medium flow path, and a pin 24 interposed between the tubes 23; .

1 and 2, components such as the heater core of the present invention and the vehicle air conditioner equipped with the heater core are denoted by the same reference numerals.

However, in the conventional vehicle air conditioner configured as described above, since the evaporator and the heater core are fixed at specific positions and a tempo door for adjusting the opening degree of the cold air passage and the warm air passage is provided at the time of cooling and heating, It is difficult to expect a proper amount of air because the space inside the engine room is required and the air flow is obstructed due to the complicated structure.

Further, since the conventional heater core can not control the amount of cooling water flowing into the heater core, even when the cooling cycle is operated, the hot water continues to flow into the heater core, so that the temperature door closes the warming passage Even if air can not be introduced into the warm passageway, the temperature of the air is increased by the high-temperature cooling water, which makes it difficult to achieve effective cooling.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide an apparatus and a method for accurately adjusting the amount of heat exchange medium flowing into a heat exchange medium- And a flow control valve capable of preventing the plate type valve from being mounted in the opposite direction.

It is an object of the present invention to provide a flow control valve and an auxiliary door that can be used more efficiently because the temperature of the automobile room can be easily controlled by using the flow rate control valve and there is no need to provide a tempdoor. The present invention provides a flow control valve capable of increasing the efficiency of cooling and heating of an air conditioner, and a vehicle air conditioner using the same.

The flow control valve 300 of the present invention includes a first port 321 connected to the first inlet pipe 211 of the heat exchange medium supply unit to allow the heat exchange medium to flow from the heat exchange medium supply unit, A second port 322 connected to the second inlet pipe 212 of the heat exchange medium requiring unit 200 so as to move the medium, a second port 322 connected to the second inlet pipe 212 of the heat exchange medium requiring unit 200, A third port 323 connected to the first outlet pipe 213 of the unit 200 and a fourth port 324 connected to the second outlet pipe 214 to discharge the heat exchange medium, A first fluid unit 311, a second fluid unit 312, a third fluid unit 313, and a third fluid unit 313, which are connected to the first port 321 to the fourth port 324 and through which the heat exchange medium flows, And a valve seat portion 327 is formed on the lower surface of one of the first and second fluid portions 311 and 313 Body 310; And the third fluid unit 313 is rotated with respect to the center of the main body 310 so that the fluid flows into the main body 310 through the first inlet pipe 211 The amount of the heat exchange medium flowing into the heat exchange medium requiring part 200 through the second inlet pipe 212 and the amount of bypassed through the second outlet pipe 214, A valve plate 330 on which a corresponding portion 332 corresponding to the valve seat portion 327 of the valve seat 330 is formed; And is formed to include a plurality of protrusions.

The valve 300 is formed so that the valve seat 327 protrudes along the outer circumference of the lower surface of the first fluid 311 or the third fluid 313, And the corresponding portion 332 of the valve seat 327 is tapered to correspond to the valve seat portion 327.

The upper surface of the main body 310 is opened to allow the plate valve 330 to be inserted into the spaces of the first and third fluid flow portions 311 and 313 from the upper side, And the upper surface of the second fluid unit 312 and the fourth fluid unit 314 which are not rotated are closed. The flow control valve 300 seals the open area of the upper surface of the main body 310, And a cover 340 for fixing the plate-shaped valve 330 is provided.

When the plate valve 330 is mounted in the opposite direction, a portion of the plate valve 330 is protruded upward from the main body 310, (340) is not assembled.

The main body 310 is divided into the first port 321 and the second port 322 and the first port 321 and the second port 322 are communicated with each other, The second port 322 and the third port 323 are separated from each other and the second port 322 and the third port 323 are separated from each other, And a second communicating portion 323 for communicating the third port 323 and the fourth port 324 with each other, a second wall 302 formed so as to divide the third port 323 and the fourth port 324, A third wall 303 in which the fourth port 324 and the first port 321 are separated from each other and the fourth port 324 and the first port 321, A fourth wall 304 formed with a communication part 318 is formed and the second fluid part 312, the second wall 302 and the second fluid part 302 are formed by the first wall 301 and the second wall 302, The third fluid chamber 313 by the third wall 303 and the fourth fluid chamber 314 and the fourth wall 304 by the third wall 303 and the fourth wall 304,And the first flow portion 311 is formed by the first wall 301.

The main body 310 supports the rotation shaft of the plate-type valve 330 and prevents the heat exchange medium from flowing between the flow portions 311, 312, 313, and 314, And the first wall 301 to the fourth wall 304 are formed in a radial direction from the central axial support portion 326. The first to fourth wall portions 304 to 304 are formed in a radial direction.

Meanwhile, the automotive air conditioner 1000 according to the present invention includes an air conditioning case 100 having a vent to be opened by each door; An evaporator (E) mounted inside the air conditioning case (100); A heater core (H) mounted inside the air conditioning case (100) and having a flow control valve (300) according to any one of claims 1 to 9; And an auxiliary door (150) for regulating the amount of air bypassing the heater core (H) by adjusting the opening degree according to the cooling / heating setting. And the driving means (not shown) of the flow control valve 300 is connected to the auxiliary door 150 to interlock the auxiliary door 150.

The flow control valve of the present invention as described above and the air conditioner for a vehicle using the same can reduce the risk of deformation due to a high-temperature heat exchange medium by using a plate valve, thereby improving durability, There is an advantage that assembly can not be performed when the plate-shaped valve is mounted in the opposite direction, thereby preventing misassembly.

In addition, the vehicle air conditioner using the flow rate control valve of the present invention can control the temperature of the automobile room effectively by easily adjusting the amount of the heat exchange medium to be supplied, and it is unnecessary to provide a separate tempdoor, And it is advantageous that the interior of the automobile can be maintained comfortably by improving the cooling / heating efficiency.

Hereinafter, a flow control valve 200 of the present invention having the above-described characteristics and a vehicle air conditioning system 1000 using the same will be described in detail with reference to the accompanying drawings.

FIG. 3 is a perspective view showing a flow control valve 300 according to the present invention mounted on a heat exchange medium requiring part 200, FIG. 4A is a perspective view showing a flow control valve 300 according to the present invention, 4A is an exploded perspective view of the flow control valve 300 shown in FIG. 4A, FIG. 5B is a cross-sectional AA 'view of the flow control valve 300 shown in FIG. 4A, 6 is a top plan view of the main body 310 of the flow control valve 300 according to the present invention and FIG. 7 is a top plan view of the main body 310 of the flow control valve 300 And FIG. 8 is a schematic view of a manufacturing process of the main body 310. FIG.

The flow control valve 300 of the present invention plays a role of controlling the amount of the heat exchange medium supplied to the heat exchange medium requiring unit 200 by receiving the heat exchange medium from the heat exchange medium supply unit (not shown) The heat exchanging medium needing part 200 may be a radiator or the like inside the air conditioner for effectively controlling and supplying the high temperature heat exchanging medium, The flow control valve 300 of the present invention may be mounted in various configurations in which the supply amount of a specific medium is to be adjusted.

The main body 310 constituting the basic body of the flow control valve 300 of the present invention will be described first.

A pipe for transferring the heat exchange medium from the heat exchange medium supply unit to the flow control valve 300 is connected to the first inlet pipe 211 and the heat transfer medium is transferred from the flow control valve 300 to the heat exchange medium requiring unit 200 A pipe for transferring the heat exchange medium discharged from the heat exchange medium requiring unit 200 to the flow control valve 300 is referred to as a first outlet pipe 213, The pipe through which the heat exchange medium is discharged from the valve 300 is defined as a second outlet pipe 214.

The main body 220 includes a first port 321 connected to the first inlet pipe 211 of the heat exchange medium supply unit to allow the heat exchange medium to flow from the heat exchange medium supply unit, A second port 322 connected to the second inlet pipe 212 of the heat exchange medium requiring unit 200 and a second port 322 connected to the heat exchange medium requiring unit 200 to receive the heat exchange medium discharged from the heat exchange medium requiring unit 200, A third port 323 connected to the first outlet pipe 213 of the heat exchange medium and a fourth port 324 connected to the second outlet pipe 214 to discharge the heat exchange medium.

That is, the first to fourth ports 321 to 324 are connected to the first inlet pipe 211, the second outlet pipe 214, and the second outlet pipe 214 of the heat exchange medium supply unit 200, An inlet pipe 212, and a first outlet pipe 213, respectively.

The main body 220 includes a first fluid unit 311, a second fluid unit 312, a third fluid unit 313, and a fourth fluid unit 313 connected to the respective ports 321 to 324, And a moving portion 314 is formed.

The main body 220 is divided into the first port 321 and the second port 322 and the first port 321 and the second port 322 are communicated with each other, The second port 322 and the third port 323 are separated from each other and the second port 322 and the third port 323 are separated from each other, And a second communicating portion 323 for communicating the third port 323 and the fourth port 324 with each other, a second wall 302 formed so as to divide the third port 323 and the fourth port 324, A third wall 303 in which the fourth port 324 and the first port 321 are separated from each other and the fourth port 324 and the first port 321, A fourth wall 304 formed with a communication part 318 is formed and the second fluid part 312, the second wall 302 and the second fluid part 302 are formed by the first wall 301 and the second wall 302, The third fluid chamber 313 by the third wall 303 and the fourth fluid chamber 314 and the fourth wall 304 by the third wall 303 and the fourth wall 304,The first flow portion 311 is formed by the first wall 301.

The first fluid unit 311, the second fluid unit 312, the third fluid unit 313, and the fourth fluid unit 314, which are capable of flowing in the heat exchange medium with reference to the center of the body 220, The first wall 301 to the fourth wall 304 are partitioned by the first wall 301 to the fourth wall 304 and the second fluid flow portion 312 and the third fluid flow portion 313 Except for the second wall 302 partitioning between the first wall 302 and the second wall 302.

The hollow portion of the first wall 301 is communicated with the first communicating portion 316 and the third communicating portion 313 so that the first and second fluid passages 311 and 312 communicate with each other. The portion where the third wall 303 is hollow is referred to as a second communicating portion 317 so that the fourth fluid portion 314 is communicated with the first fluid portion 311, The portion in which the four walls 304 are hollowed is defined as a third communicating portion 318.

The first wall 301, the third wall 303 and the fourth wall 304 may be configured such that the communication portions 316, 317 and 318 formed in each of them are in contact with the plate valve 330 to be closed Lt; / RTI >

A center shaft portion 326 (not shown) is provided at the center of the main body 310 to support the rotation shaft of the plate valve 330 and prevent the heat exchange medium from flowing between the moving portions 311, 312, 313, ) Is preferably formed.

The main body 310 includes walls 301, 312, 313, 314 partitioning the ports 321, 322, 323, 324 connected to the respective pipes 211, 212, 213, 214, 318, and 319 formed on the walls 301, 312, 303, and 304 are referred to as a lower mold 371, an upper mold 372, The main body 310 may be integrally formed by using the first and second molds 373, 374, 375, and 376. The main body 310 may include a lower mold 371, a first fluid section 311, and a third fluid section 313 The upper mold 372 and the first port 321 are formed so as to be in contact with one side of the upper mold 372 forming the first fluid section 311 and the first port 321 and the first fluid section A second core 374 that forms the second port 322 and the second fluid portion 312 and a second core 374 that forms the third port 323 And is in contact with one side of the upper mold 372 forming the third fluid portion 313, so that the third port 323 and the third fluid A third core 375 that allows the eccentric portion 313 to form a continuous flow path and a fourth core 376 that forms the fourth port 324 and the fourth flow portion 314 have.

The first core 373 forming the first port 321 and the third core 373 forming the third port 323 are respectively connected to the first fluid 321 and the second fluid 372 of the upper mold 372, When the main body 310 is viewed from above, the extension line L (L) of the inner surface of the first port 321 adjacent to the central axis support portion 326 is in contact with the portion forming the second fluid portion 322, ₁ ) is formed inside the outer periphery of the first fluid portion 311, and a portion of the first core portion 373 that is inserted into the first fluid portion 311 and communicates with the first port 321 is formed inside the outer periphery of the first fluid portion 311, The third core 375 is formed so that the third fluid portion 313 and the third port 323 are communicated with each other through an extension line L ₂ on the inner surface of the third port 323 adjacent to the central axis support portion 326, (See FIG. 7) of the third fluid section 312. [0053]

The present invention can be applied to the external configuration of the main body 310 and the port 321 through which the heat exchange medium flows, using only the upper mold 372, the lower mold 371 and the cores 373, 374, 375, 322, 323, and 324 and the connecting portions 311, 312, 313, and 314 and the connecting portions of the ports 321, 322, 323, and 324 and the moving portions 311, So that it is easy to manufacture and productivity can be improved.

More specifically, the portion of the upper mold 372 forming the first fluid portion 311 is formed to abut the first core 373, the second core 374, and the fourth core 376 A portion of the upper mold 372 forming the third fluid portion 313 is formed to abut the third core 375 and the fourth core 376 so that the heat exchange medium is supplied to the ports 321, 323 and 324 and the moving parts 311 and 312 and 313 and 314 and the second core 374 moves the second port 322, the second moving part 312, And the fourth core 376 forms a portion of the first port 311 which communicates with the first fluid 311 and the second fluid 312 of the first wall 301, (The portion communicating the third fluid portion 313 and the fourth fluid portion 314 of the third wall 303), the second fluid portion 324, the fourth fluid portion 314, the second fluid portion 317 The third communication portion 318 (the portion of the fourth wall 304 that communicates the fourth fluid portion 314 and the first fluid portion 311) is formed, Such that.

A portion of the upper mold 372 forming the third fluid portion 313 is formed not to be in contact with the second core 374 to form the second wall 302 so that the second fluid portion 312 And the third fluid portion 313 are formed so as not to communicate with each other.

The third fluid unit 313 is a space serving as a space to be transferred to and discharged from the fourth fluid unit 314 after the heat exchange medium flowing in the heat exchange medium requiring unit 200 flows into the third fluid unit 313, The heat exchange medium that has flowed inside the heat exchange medium requiring part 200 flows back into the second fluid flow part 312 and the heat exchange medium required part 200 when the third fluid flow part 312 and the third fluid flow part 313 communicate with each other, The flow control valve 300 of the present invention is advantageous in that the possibility of backflow of the heat exchange medium discharged by blocking the second flow portion 312 and the third flow portion 313 can be completely blocked.

The main body 310 of the flow control valve 300 of the present invention includes a first port 321 and a fourth port 324 for fixing the first inlet pipe 211 and the second outlet pipe 214 of the heat exchange medium supply unit, And the second port 323 and the third port 323 for fixing the second inlet pipe 212 and the first outlet pipe 213 of the heat exchange medium requiring part 200 are parallel to each other So as to facilitate the mounting.

The fourth core 376 is moved from the first fluid portion 311 or the third fluid portion 313 to the fourth fluid portion 314 of the main body 310 to be connected to the second outlet pipe 214 The protrusion 315 is formed inside the main body 310 such that the protrusion 315 protrudes from the central shaft support portion 326 toward the fourth fluid portion 314 in order to prevent the discharged heat exchange medium from flowing back to the neighboring fluid flow portions 311 and 313 And is formed to have a concave shape corresponding to the protrusion 315 at the end to be inserted.

As shown in FIG. 7, the protruding portion 315 is provided to smoothly flow the heat exchange medium from the first fluid portion 311 or the third fluid portion 313 to the first fluid portion 314 And may be formed to have a predetermined angle on both sides.

The first inlet pipe 211, the second inlet pipe 212, the first inlet pipe 211, the second inlet pipe 212, and the second inlet pipe 213 are connected to the ports 321, 322, 323, 322, 323, and 324, respectively, are formed on the outer surface of the outlet pipe 213 and the second outlet pipe 214, respectively, to fix the bead 215 protruding outward. The fixing portion 325 may be integrally formed with the main body 310 or may be formed as a separate member.

The plate valve 330 rotates the space between the first fluid 311 and the third fluid 313 with respect to the center shaft support 326 of the main body 310 so that the first inlet pipe 211, And the heat exchange medium flowing into the first flow portion 311 through the first port 321 passes through the second flow portion 312 and flows into the second port 322 and the second inlet pipe 212 The amount of the refrigerant flowing into the heat exchange medium requiring portion 200 through the fourth flow portion 314 and the amount of bypassed through the fourth port 324 and the second outlet pipe 214 are adjusted.

(The flow of the heat exchange medium according to the position of the plate valve 330 will be described again with reference to FIGS. 11A, 12A and 13A)

The plate type valve 330 is connected to a driving means (not shown), and the amount of the heat exchange medium flowing into the heat exchange medium requiring unit 200 according to the temperature setting of the user and the amount of heat exchange medium flowing into the heat exchange medium requiring unit 200 It is possible to accurately control the amount of the heat exchange medium.

The plate type valve 330 is disposed in the space of the first fluid unit 311, the second fluid unit 312, the third fluid unit 313, or the fourth fluid unit 314 at the time of maximum heating or maximum cooling The first communication portion 316, the second communication portion 317, or the third communication portion 318 is contacted with the portions of the first wall 301 to the fourth wall 304 that partition the heat exchange medium The first wall 301 to the fourth wall 304 can be moved in the direction of the axis of the central shaft support portion 330 so that the plate valve 330 abuts against the first wall 301 to the fourth wall 304. [ And the plate valve 330 is further compressed in a region where the plate valve 330 is in contact with the first wall 301 to the fourth wall 304 to secure the airtightness of the heat exchange medium The second sealing member 331 may be further formed on the upper portion of the plate-shaped valve 330 so that the plate-shaped valve 330 can be rotated more easily. .

The ring-like member 360 may be made of a material such as Teflon. If the ring-shaped member 360 is provided on the plate-shaped valve 330 and facilitates the rotation of the plate-shaped valve 330, .

The flow control valve 300 of the present invention has a problem in that the valve is difficult to operate when the valve is deformed by heat exchange medium having a large volume and a high temperature, The heat exchange medium can flow more smoothly by forming a space in which the heat exchange medium can flow more smoothly so that the possibility of deformation by a high temperature heat exchange medium can be lowered and even if deformation occurs, The supply amount of the heat exchange medium can be easily controlled by solving the problem that the driving force for driving the heat exchanger 330 is rapidly increased.

The flow control valve 300 according to the present invention is configured such that the upper surface of the main body 310 is positioned such that the plate valve 330 is inserted into the spaces of the first and third fluid portions 311 and 313 from above, And the upper surfaces of the second fluid portion 312 and the fourth fluid portion 314, which are portions where the plate valve 330 does not rotate, are closed so that the assembling property of the plate valve 330 can be increased, Thereby minimizing the possibility of leakage of the heat exchange medium.

At this time, the shape of the upper surface of the main body 310 can be adjusted to open or close by adjusting the shape of the upper mold 372.

The cover 340 is configured to close an open area of the upper surface of the main body 310 and to fix the plate valve 330. The figure shown in FIG 4B is a top view of the main body 310, (340) is connected by a separate fastening member.

The flow control valve 300 according to the present invention is further provided with a first sealing member 350 between the main body 310 and the lid 340 so that the heat exchange medium flowing inside the main body 310 flows out .

The flow rate control valve 300 of the present invention is a valve type valve that selectively opens or closes each of the communication portions 316 to 318 by rotation to regulate the amount of the supplied or supplied amount to the heat exchange medium requiring portion 200, (311) or a third fluid section (313), which is a region where the plate valve (330) of the main body (310) is provided, in order to prevent the valve body A corresponding portion 332 having a shape corresponding to the valve seat portion 327 of the main body 310 is formed at one side of the plate valve 330. [

The valve seat portion 327 should be formed so as not to interfere with the movement of the plate valve 330 so as not to interfere with the original function of the plate valve 330 for controlling the movement of the heat exchange medium. The corresponding portion 332 of the plate valve 330 protrudes along the outer circumference of the lower surface of the first fluid portion 331 or the third fluid portion 313 as shown in FIG 5, And is formed to be tapered so as to correspond to the valve seat portion 327.

In the drawing, the valve seat portion 327 is formed in the third fluid portion 313.

That is, the flow control valve 300 of the present invention is configured such that the valve seat portion 327 is formed only on one side of the region (the first fluid portion 311 or the third fluid portion 313) where the plate valve 330 is provided And a corresponding portion 332 corresponding to the valve seat portion 327 is formed only on one side of the plate valve 330 so that the corresponding portion 332 of the plate valve 330 and the valve seat portion 327 correspond to each other When the plate valve 330 is reversely mounted, the plate valve 330 can be assembled by the protrusion of the valve seat 327 only when the valve body 330 is mounted so as to be assembled with the main body 310 and the lid 340, So that the assembly can not be assembled.

When the valve seat portion 327 is formed in the main body 310 and the corresponding portion 332 is not formed in the plate valve 330, even if the plate valve 330 is mounted in the opposite direction, It is difficult to recognize that the plate type valve 330 is erroneously mounted until the operation of the valve 300 and it is troublesome to assemble the plate type valve 330 again. However, in the flow rate control valve 300 of the present invention, It is possible to prevent the assembly of the flow control valve 300 before the flow control valve 300 is mounted.

FIG. 9 is a perspective view showing another embodiment in which the flow control valve 300 according to the present invention is mounted on the heat exchange medium requiring part 200. FIG. 10a is a perspective view of the case 380 of the flow control valve 300, FIG. 10B is an exploded perspective view of the case 380 of the flow control valve 300 shown in FIG. 10A. FIG.

9 to 10B, the flow control valve 300 of the present invention includes the first inlet pipe 211, the second inlet pipe 212, the first outlet pipe 213, A case 300 may be further provided to prevent the pipes 211, 212, 213 and 214 from separating from each other when the outlet pipe 214 is fastened.

The case 300 includes a flat portion 381 which is in close contact with a lower surface of the main body 310 of the flow control valve 300 and a flat portion 381 which is formed to protrude perpendicularly to the flat portion 381 to fix the bead 215 322, 323, and 324 formed at the ends of the respective ports 321, 322, 323, and 324 as the case 300 is provided, and the flow control valve 300 of the present invention includes the support portion 382, 212, 213, and 214 are fixed to the pipes 211, 212, 213, and 214 by the support portions 382 of the case 300, There is an advantage in that it is possible to prevent it from being released in advance.

The case 380 is connected to the outer surface of the first inlet pipe 211, the second inlet pipe 212, the first outlet pipe 213, or the second outlet pipe 214, A U-shaped seating portion 383 is formed at the portion to be contacted (a portion contacting the surface perpendicular to the longitudinal direction of the pipes 211, 212, 213 and 214) 214 can be more stably fixed.

In order to prevent the case 380 from being separated from the case 380, the supporting portion 382 may be formed with a fastening hole 384 to be fastened to the driving means (not shown) by a separate fixing means 385 have.

Although driving means is not shown in the drawing, driving means is provided between the supporting portion 382 and the fixing means 385 so that the case 380 and the fixing means 385 are fixed by the fastening hole 384 and the fastening means 385, The means 385 can be fixed.

The flow control valve 300 according to the present invention may further include a separate lid covering the case 380 when the driving means is spaced apart from the upper surface of the flow control valve 300 by a predetermined distance, 380 may be fixed or various other means may be applied to fix the case 380 in close contact with the flow control valve 300.

11A and 11B are views showing the flow control valve 300 and the air conditioner 1000 at the time of maximum cooling and FIGS. 12A and 12B respectively show the flow control valve 300 and the air conditioner 1000 FIG. 13 is a view showing an embodiment of the flow control valve 300 according to the present invention.

As shown in FIGS. 11B and 12B, the automotive air conditioner 1000 of the present invention includes an air conditioning case 100 having a vent which is opened by each door; An evaporator (E) mounted inside the air conditioning case (100); A heater core H mounted inside the air conditioning case 100 and equipped with a flow control valve 300 having the above-described characteristics; And an auxiliary door (150) for regulating the amount of air bypassing the heater core (H) by adjusting the opening degree according to the cooling / heating setting. And the driving means (not shown) of the flow control valve 300 is connected to the auxiliary door 150 to interlock the auxiliary door 150.

The vehicle air conditioner 1000 includes a blowing unit 140 connected to an air inlet of the air conditioning case 100 to blow outside air and is blown through the blowing unit 140 and passed through an evaporator E The air can be partially adjusted by the auxiliary door 150 to pass through the heater core H.

11A, the flow control valve 300 controls the flow of the high-temperature heat exchange medium to the heater core H so that the high-temperature heat exchange medium does not flow into the heater core H, Closes the first communicating portion 316 of the first wall 301 and the second communicating portion 317 of the third wall 303 to communicate with the first communicating portion 316 through the first port 321, The heat exchange medium flowing into the first outlet pipe 311 passes through the third communicating part 318, the fourth fluid part 314 and the fourth port 324 of the fourth wall 403, .

11B, the auxiliary door 150 interlocked with the driving means (not shown) is opened to allow a part of the air passing through the evaporator E to pass through the heater core H Without passing through.

As shown in FIG. 12A, the flow control valve 300 controls the flow of the high-temperature heat exchange medium to the inside of the heater core H, The first communicating part 330 is positioned to seal the third communicating part 318 of the fourth wall 304 and flows into the first communicating part 311 through the first inlet pipe 211 and the first port 321, The heat exchange medium is moved into the heater core H via the second inlet pipe 212 through the first communication part 316, the second fluid part 312 and the second port 322 .

A second wall 302 separating the second port 322 from the third port 323 is cut off so that a heat exchange medium to be introduced into the heater core H The heat exchanging medium that has been moved to the third fluid portion 313 or flows through the heater core H again flows backward to the second fluid portion 312, the heater core H, or the first fluid portion 311, And the flow of the heat exchange medium can be easily controlled by using the plate-type valve 330.

The heat exchange medium flowing inside the heater core H passes through the third port 323, the third flow portion 313 and the second communication portion 317 through the first outlet pipe 213, Is moved to the fourth fluid portion 314, and again through the fourth port 324 and through the second outlet pipe 214.

Further, as shown in FIG. 12B, the auxiliary door 150 is closed so that the air passing through the evaporator (E) passes through the heater core (H).

That is, the vehicular air conditioning system 1000 according to the present invention includes a heater core H with a flow control valve 300 to control the amount of heat exchange medium flowing into the heater core H, (Not shown) of the flow control valve 300 so that the temperature can be changed more constantly when the temperature of the user is set. Thus, the temperature can be easily controlled and the cooling / heating efficiency can be further increased .

13 shows a state in which the plate valve 330 is located at a midpoint between the first and third fluid flow units 311 and 313 in the intermediate temperature setting state (intermediate state between maximum heating and maximum cooling) A part of the heat exchange medium flowing into the first flow portion 311 through the first inlet pipe 211 flows through the first communication portion 316, the second flow portion 312 and the second port 322 The second fluid is moved into the heater core H through the second inlet pipe 212 and a part of the fluid passes through the third communication part 318, the fourth fluid part 314, and the fourth port 324, 2 < / RTI >

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1 is a sectional view showing a conventional automotive air conditioner.

2 is a perspective view showing a general heater core.

3 is a perspective view showing a state in which a flow control valve according to the present invention is installed in a heat exchange medium requiring portion;

4A is a perspective view illustrating a flow control valve according to the present invention.

FIG. 4B is an exploded perspective view of the flow control valve shown in FIG. 4A. FIG.

5 is a cross-sectional AA 'sectional view shown in FIG. 4A.

6A is a partially cutaway perspective view showing a flow control valve body according to the present invention.

6B is a top plan view of the flow control valve body according to the present invention.

7 is a sectional view of a flow control valve body according to the present invention.

8 is a schematic view showing a manufacturing process of the main body.

FIG. 9 is another perspective view showing another aspect in which the flow control valve according to the present invention is mounted on the heat exchange medium requiring portion. FIG.

10A is a perspective view showing an embodiment of a case of a flow control valve according to the present invention.

FIG. 10B is an exploded perspective view of the case of the flow control valve shown in FIG. 10A. FIG.

11A and 11B are views showing a flow rate control valve and an air conditioner at the time of maximum cooling;

12A and 12B are views showing a flow rate control valve and an air conditioner at the time of maximum heating;

13 is a view showing an embodiment of a flow control valve according to the present invention.

DESCRIPTION OF REFERENCE NUMERALS

1000: Car air conditioner

100: air conditioning case

110, 120, 130: vent 110d, 120d, 130d: vent door

140: Tongue 150: Secondary door

E: Evaporator

H: heater core

200: Heat exchange medium required part

210: first header tank 220: second header tank

211: first inlet pipe 212: second inlet pipe

213: first outlet pipe 214: second outlet pipe

215: bead

230: tube 240: pin

300: Flow control valve

301: first wall 302: second wall

303: third wall 304: fourth wall

310:

311: first flow section 312: second flow section

313: third flow section 314: fourth flow section

315: projection part 316: first communicating part

317: second communicating part 318: third communicating part

321: first port 322: second port

323: third port 324: fourth port

325: fixing portion 326: central shaft portion

327: Valve seat part

330: plate valve 331: second sealing member

332:

340: cover

350: first sealing member

360: ring member

371: lower mold 372: upper mold

373: first core 374: second core

375: third core 376: fourth core

380: Case

381: plane portion 382:

383: seat part 384: fastening hole

385: Fixing means

Claims (9)

A first port 321 connected to the first inlet pipe 211 of the heat exchange medium supply unit so as to allow the heat exchange medium to flow from the heat exchange medium supply unit, A second port 322 connected to the second inlet pipe 212 of the heat exchange medium requiring part 200 so that the heat exchange medium discharged from the heat exchange medium requiring part 200 flows, And a fourth port 324 connected to the second outlet pipe 214 for discharging the heat exchange medium are formed in the first port 321 to the fourth port 321. The third port 323 is connected to the first port 321, A second fluid unit 312, a third fluid unit 313, and a fourth fluid unit 314, which are connected to the first fluid unit 324 and the heat exchange medium, respectively, A main body 310 having a valve seat portion 327 protruded on the lower surface of one of the first and third fluid portions 311 and 313; And The first fluid pipe 311 and the third fluid pipe 313 are rotated with respect to the center of the main body 310 so that the heat exchanged into the main body 310 through the first inlet pipe 211 The amount of the medium to be introduced into the heat exchange medium requiring part 200 through the second inlet pipe 212 and the amount of bypassed through the second outlet pipe 214, A plate-shaped valve 330 in which a corresponding portion 332 corresponding to the valve seating portion 327 is formed; Wherein the flow control valve is formed to include a valve body. The method according to claim 1, The flow control valve 300 is formed such that the valve seat portion 327 protrudes along the outer circumference of the lower surface of the first fluid portion 311 or the third fluid portion 313, (332) is tapered to correspond to the valve seat (327). The method according to claim 1, The upper surface of the main body 310 is opened to allow the plate valve 330 to be inserted into the spaces of the first and third fluid flow units 311 and 313 from above and the plate valve 330 is rotated The upper surface of the second fluid portion (312) and the upper surface of the fourth fluid portion (314) are closed. The method of claim 3, Wherein the flow control valve (300) is provided with a lid (340) for sealing the open area of the upper surface of the main body (310) and fixing the plate type valve (330). 5. The method of claim 4, When the plate valve 330 is mounted in the opposite direction, a part of the plate valve 330 is protruded upward from the main body 310, Is not assembled. The method according to claim 1, The main body 310 is divided into the first port 321 and the second port 322 and the first port 321 and the second port 322 are communicated with each other. The second port 322 and the third port 323 are separated from each other so that the second port 322 and the third port 323 are not communicated with each other. A second communicating portion 317 for communicating the third port 323 with the fourth port 324 and a second wall 302 for separating the third port 323 from the fourth port 324, A third communication port 323 for communicating the fourth port 324 with the first port 321 and a second port 322 for communicating the fourth port 324 with the first port 321, The second wall 302 and the third wall 302 are formed by the first wall 301 and the second wall 302 by forming a fourth wall 304 on which the first wall 318 is formed. The third fluid section 313 by the wall 303 and the fourth fluid section 314 and the fourth wall 304 by the third wall 303 and the fourth wall 304, 1 a wall flow control valve characterized in that the first flow portion 311 by the 301 form. The method according to claim 6, A center shaft portion 326 (not shown) is provided at the center of the main body 310 to support the rotation shaft of the plate valve 330 and prevent the heat exchange medium from flowing between the moving portions 311, 312, 313, ) Is formed on the outer circumferential surface of the flow control valve. 8. The method of claim 7, Wherein the first wall (301) to the fourth wall (304) are formed radially from the central axially supported portion (326). An air conditioning case 100 formed with a vent whose opening is controlled by each door; An evaporator (E) mounted inside the air conditioning case (100); A heater core (H) mounted inside the air conditioning case (100) and having a flow control valve (300) according to any one of claims 1 to 8; And an auxiliary door (150) for regulating the amount of air bypassing the heater core (H) by adjusting the opening degree according to the cooling / heating setting. Respectively, Wherein the driving means (not shown) of the flow control valve 300 is connected to the auxiliary door 150 to interlock the auxiliary door 150.

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