KR20100091660A - Air conditioner for vehicles - Google Patents

Abstract

PURPOSE: An air conditioning device for a vehicle is provided to ease the flow of entire air flowing into a console vent through a branch guide by forming a baffle in the branch guide. CONSTITUTION: An air conditioning device for a vehicle comprises an air conditioning case(110), a plurality of mode doors(117,118), a branch guide(120), and an auxiliary guide unit(125). The air conditioning case comprises an air intake(111), a defrosting vent(112), a face vent(113), floor vents(114,115) and a console vent(116). The mode doors respectively control the opening levels of the defrosting vent, the face vent and the floor vent. The branch guide is formed on the entrance side of the console vent and guides a part of the air passing through one or more of the vents to the console vent. The auxiliary guide unit is formed in the branch guide and guides the flow of the air flowing into the console vent through the branch guide.

Description

Automotive air conditioning unit {AIR CONDITIONER FOR VEHICLES}

The present invention relates to a vehicle air conditioner, and more particularly, by forming an auxiliary guide means inside the branch guide formed to guide some of the air passing through the face vent to the console vent, through the branch guide to the console vent It is possible to improve the distribution of the center vent air volume of the face vent as well as increase the overall air volume of the air conditioner because the flow of the flowing air is reduced to reduce the resistance and noise, thereby reducing the size of the branch guide. It relates to an air conditioner.

In general, the vehicle air conditioner is a vehicle interior that is installed for the purpose of securing the driver's front and rear view by removing the frost that is caught in the windshield during the rainy season or the winter, or by cooling or heating the interior of the car during the summer or winter season. In addition, such an air conditioner is generally equipped with a heating device and a cooling device at the same time to selectively introduce the outside air or bet, the air is heated or cooled and blown into the vehicle interior to cool, heat or ventilate the interior of the vehicle.

According to the independent structure of the blower unit, the evaporator unit, and the heater core unit, the air conditioner includes a three piece type in which the three units are independently provided, and an evaporator unit and the heater core unit in the air conditioning case. It can be divided into semi-center type (Central Center type) that is built in the air blower unit is provided as a separate unit, and the center mounting type (Center Mounting Type) that all three units are built in the air conditioning case.

FIG. 1 shows the semi-center type vehicle air conditioner. The air conditioner 1 has an air inlet 11 formed at an inlet side and an opening degree by mode doors 16a, 16b, 16c at the outlet side, respectively. An air conditioning case 10 in which the defrost vent 12a, the face vent 12b, and the floor vents 12c and 12d are adjusted; A blower (not shown) connected to the air inlet 11 of the air conditioning case 10 to blow the inside or outside air; An evaporator (2) and a heater core (3) embedded in the air conditioning case (10); The opening degree of the cold air flow path P1 which is installed between the evaporator 2 and the heater core 3 and bypasses the heater core 3 and the hot air flow path P2 passing through the heater core 3 is shown. It comprises a temperature control door 15 to adjust.

In addition, a guide wall 17 is formed between the rear side hot air flow passage P2 of the heater core 3 and the floor vents 12c and 12d to partition each other. The floor vents 12c and 12d are branched into a front seat vent 12c and a rear seat vent 12d.

In addition, the face vent 12b is divided into a center vent 12f and a side vent 12g so as to divide and discharge air into the center side and both sides of the vehicle interior, respectively.

And, in order to solve the temperature difference between the front seat and the back seat is severe, the rear side of the floor vent (12c, 12d) induces the air discharge to the console box (not shown), which is the center of the vehicle interior air conditioning air into the rear seat space The supplying console vent 12e is installed.

The console vent 12e is branched from the face vent 12b and guides some of the air passing through the face vent 12b toward the console box to cool and heat the rear seat space.

At this time, the branch guide 20 protrudes from the inlet side of the console vent 12b to smoothly guide some of the air passing through the face vent 12b to the console vent 12b. The guide 20 is formed in the center vent 12f of the face vent 12b to guide some of the air passing through the center vent 12f toward the console vent 12e.

According to the vehicle air conditioner 1 configured as described above, when the maximum cooling mode is operated, the temperature control door 15 opens the cold air flow passage P1 and closes the hot air flow passage P2. do. Accordingly, the air blown by the blower not shown is heat-exchanged with the refrigerant flowing through the evaporator 2 while passing through the evaporator 2 to be changed into cold, and then the mixing chamber (Mixing) through the cold air flow path (P1) Chamber, MC) and then through the vent opened by the mode door (16a, 16b, 16c) according to a predetermined air conditioning mode (vent mode, bi-level mode, floor mode, mix mode, defrost mode) By being discharged to the vehicle interior, cooling of the vehicle interior is performed.

In addition, when the maximum heating mode is activated, the temperature control door 15 closes the cold air passage P1 and opens the hot air passage P2. Accordingly, the air blown by the blower not shown is heat-exchanged with the coolant flowing through the inside of the heater core 3 while passing through the heater core 3 through the hot air flow passage P2 after passing through the evaporator 2. After changing to warmth, the liquid flows toward the mixing chamber MC, and is then discharged to the interior of the vehicle through a vent opened by the mode doors 16a, 16b, and 16c according to a predetermined air conditioning mode, thereby heating the interior of the vehicle. .

In addition, when the cooling mode other than the maximum cooling mode, that is, 1/2 cooling mode is operated, the temperature control door 15 is rotated to the neutral position, the cooling air flow path (P1) with respect to the mixing chamber (MC) And open all the hot air flow path (P2). Therefore, after the cool air passing through the evaporator 2 and the warm air passing through the heater core 3 are mixed by flowing toward the mixing chamber MC, they are opened by the mode doors 16a, 16b, and 16c according to a predetermined air conditioning mode. The vent is discharged into the vehicle interior.

On the other hand, in the maximum cooling mode, the maximum heating mode, 1/2 cooling mode, some of the air supplied to the face vent (12b) is discharged into the vehicle interior through the face vent (12b) to cool and heat the front seat space The part is supplied to the console vent 12e through the branch guide 20 and then discharged to the rear side of the console box inside the vehicle to cool and heat the rear seat space.

However, the above-described conventional air conditioner 1 has a center vent of the face vent 12b in such a manner that the branch guide 20 resists the flow air while blocking the predetermined area of the center vent 12f. A part of the air passing through 12f) is guided to the console vent 12e. At this time, when the air hits the branch guide 20, the flow resistance increases, and the pressure inside the air conditioning case 10 increases. Not only the total amount of air is lowered, but also the air hits the branch guide 20, there is a problem that the noise occurs.

In addition, since the branch guide 20 must prevent a predetermined area or more of the center vent 12f in order to guide air to the console vent 12e, the center vent 12f and the side vent of the face vent 12b ( The air volume distribution of 12 g) was uneven, and in particular, there were many difficulties in the air volume distribution of the center vent 12f.

An object of the present invention for solving the above-described problems is to form an auxiliary guide means on the inside of the branch guide formed to guide some of the air passing through the face vent to the console vent, flow through the branch guide to the console vent It is possible to reduce the resistance and noise by smoothly flowing the air, thereby reducing the size of the branch guide, thereby improving the center vent air volume distribution of the face vent and increasing the overall air volume of the air conditioning case. To provide a device.

The present invention for achieving the above object, the air inlet is formed on the inlet side, the outlet side air-conditioning case formed with a defrost vent, a face vent, a floor vent and a branched console vent from at least one of the vents; In the vehicle air conditioner comprising a plurality of mode doors installed to adjust the opening degree of the defrost vent, the face vent and the floor vent, respectively, the inlet side of the console vent is passed through at least one of the vents A branch guide is formed to guide some of the air to the console vent, and an auxiliary guide means is provided inside the branch guide to further guide the flow of air flowing to the console vent through the branch guide.

According to the present invention, by forming a baffle as an auxiliary guide means inside a branch guide formed to guide a part of the air passing through the face vent to the console vent, the entire air flow flowing through the branch guide to the console vent is increased. The smoothness reduces flow resistance and reduces noise.

In addition, since the flow of air flowing to the console vent side is smoothly reduced by the baffle, the flow resistance is reduced, and thus the total air volume is increased while also reducing the pressure inside the air conditioning case.

In addition, the baffle reduces the flow resistance in the air conditioning case and increases the total air volume, thereby reducing the size (area) of the branch guide in the center vent compared to the conventional branch guide, thereby increasing the center vent side air volume. While the air volume distribution of the center vent can be improved, the air volume distribution of the center vent and the side vent of the face vent is also uniformly improved.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a cross-sectional view showing a vehicle air conditioner according to the present invention, Figure 4 is an enlarged cross-sectional view of the branch guide and the baffle portion in Figure 3, Figure 5 is a plan view showing a vehicle air conditioner according to the present invention, Figure 6 In the vehicle air conditioner according to the present invention is a perspective view showing a branch guide and a baffle, Figure 7 is a view of the present invention with the baffle and the air flow flow in the conventional air conditioning case without the baffle.

As shown, the vehicle air conditioner 100 according to the present invention, the air inlet 111 is formed on the inlet side and a plurality of air outlets are formed on the outlet side and the cold air flow path (P1) and the warm air on the inside air passage An air conditioner case 110 having a flow path P2, an evaporator 101 and a heater core 102 installed on an air flow path inside the air conditioner case 110, the evaporator 101 and a heater core 102. In addition to the installed between the cold air flow passage (P1) bypassing the heater core 102 and the temperature control door 130 for adjusting the opening degree of the hot air flow passage (P2) passing through the heater core 102, It is composed.

In addition, an air inlet 111 of the air conditioning case 110 is provided with a blower (not shown) for blowing inside or outside air.

The plurality of air discharge ports formed at the outlet side of the air conditioning case 110 may include a defrost vent 112 for discharging air toward the windshield of the vehicle and a face vent for discharging air toward the face of the front occupant. 113 and floor vents 114 and 115 for discharging air toward the foot of the occupant are formed.

Here, the face vent 113 is divided into a center vent 113a and a side vent 113b so as to divide and discharge air into the center side and both sides of the vehicle interior, respectively.

The center vent 113a and the side vent 113b are divided by a partition wall 113c formed inside the face vent 113, wherein the center vent 113a is the center side of the face vent 113. The side vent 113b is positioned at both sides of the center vent 113a.

Further, the floor vents 114 and 115 branch into a front seat vent 114 for discharging air toward the front occupant's foot and a rear seat vent 115 for discharging air toward the rear occupant's foot. It is.

In addition, the defrost vent 112, the face vent 113, and the floor vents 114 and 115 are opened and closed by the mode doors 117, 118, and 119, respectively, and the opening degree thereof is adjusted.

Here, the temperature control door 130 and the mode door 117, 118, 119 is composed of a rotating shaft rotatably coupled to the inner wall surface of the air conditioning case 110, and a plate formed on the side of the rotating shaft. .

In addition, a guide wall 110a is formed between the rear side hot air flow passage P2 of the heater core 102 and the floor vents 114 and 115 to be partitioned from each other.

Meanwhile, the temperature control door 130 and the mode doors 117, 118, and 119 are cams (not shown) or levers (not shown) driven by an actuator (not shown) installed on the outer surface of the air conditioning case 110. When connected to the rotation and the like to adjust the opening degree of the cold, hot air flow path (P1) (P2) and each of the vent (112 ~ 115).

In addition, a console vent 116 branched from at least one of the vents 112, 113, 114, and 115 is formed in the air conditioning case 110.

Here, the console vent 116 is branched from the face vent 113, as shown in the figure is preferably formed in the rear vent 114, 115 of the air conditioning case 110, as well as the face vent 113 Alternatively, it may be formed by branching from the defrost vent 112 or the floor vents 114 and 115.

The console vent 116 supplies air conditioning air to a specific area of the vehicle interior (rear console (rear seat) or B-pillar, etc.). For example, some of the air passing through the face vent 113 is consoled. After leading to the box side, the rear seat space is cooled and heated.

In this case, the inlet of the console vent 116 is formed in communication with the face vent 113. Accordingly, the air volume of the face vent 113 and the console vent 116 are controlled by one mode door 118 that controls the opening degree of the face vent 113.

In addition, a branch guide 120 protrudes from the inlet side of the console vent 116 so as to guide some of the air passing through the face vent 113 to the console vent 116.

Of course, when the console vent 116 diverges from the defrost vent 112 or the floor vents 114 and 115 rather than the face vent 113, the branch guide 120 may be the defrost vent 112 or the floor vent ( Some of the air passing through the 114, 115 is guided to the console vent (116). Hereinafter, only the case where the console vent 116 is branched from the face vent 113 will be described.

The branch guide 120 is formed to be positioned inside the center vent 113a of the face vent 113 and is installed to block a predetermined region of the center vent 113a.

The branch guide 120 has an upper surface portion 121 protruding to a predetermined length and an area above the inlet of the console vent 116, and side portions extending downward in both directions of the upper surface portion 121 ( 122).

At this time, the side portion 122 is formed so that its height decreases toward the end of the upper surface portion 121.

In addition, an auxiliary guide means 125 is provided inside the branch guide 120 to further guide the flow of air flowing into the console vent 116 through the branch guide 120.

That is, the auxiliary guide means 125 improves the air volume distribution of the face vent 113 by smoothly flowing the air flowing to the console vent 116 through the branch guide 120, the whole air conditioning case 110 The air volume increases.

The auxiliary guide means 125 is composed of a baffle 126 integrally formed across the inner side surfaces of both side portions 122 of the branch guide 120.

At this time, the baffle 126 is installed to be spaced apart from the lower surface of the upper surface portion 121 by a predetermined cross-sectional shape is formed to be curved in a streamline to smoothly guide the flow of air.

That is, by further forming the baffle 126 inside the branch guide 120, some of the air discharged toward the center vent 113a is guided to the console vent 116 through the branch guide 120, and a part of the air is discharged. Guided to the console vent 116 side along the curved surface of the baffle 126 is a smoother flow of the entire air flowing to the console vent 116 side is reduced resistance and noise is also reduced.

As such, since the flow of air flowing toward the console vent 116 is smoothly reduced by the baffle 126, the flow resistance decreases, and thus the total air volume increases while reducing the pressure inside the air conditioning case 110.

In addition, since the flow resistance in the air conditioning case 110 is reduced by the baffle 126 and the total air volume is increased, the size (area) of the branch guide 120 occupied in the center vent 113a as shown in FIG. 6. It can be reduced compared to the conventional branch guide, thereby improving the air volume distribution of the center vent (113a) as the air volume of the center vent (113a) increases, as well as the center vent (113a) and side vents of the face vent 113 The air volume distribution of 113b can also be improved uniformly.

In addition, even when the size of the branch guide 120 is reduced, the total air volume is increased due to a decrease in the flow resistance in the air conditioning case 110, so that the air volume of the console vent 116 can be maintained as it is.

As a result of analyzing the present invention in which the baffle 126 is installed and the airflow flow in the conventional air conditioner case in which the baffle 126 is not provided, as shown in FIG. As air hits the branch guide, the flow resistance increases, so airflow is not smooth. Dead zone (red circle in the figure) and the total air volume decrease.

On the other hand, in the present invention in which the baffle 126 is installed, the flow resistance is reduced by the baffle 126 installed inside the branch guide 120 while the air flow flows smoothly. Also increased, the air volume distribution of the center vent 113a of the face vent 113 was improved.

Therefore, the baffle 126, which is the auxiliary guide means 125, is disposed at a position corresponding to the dead zone region where the air flow resistance of the branch guide 120 is relatively large, thereby allowing air to flow to the dead zone. It is desirable to guide the console vent 116 smoothly.

Hereinafter, the operation of the vehicle air conditioner according to the present invention will be described.

Only the vent mode in which the face vent 113 is opened by the mode door 118 in the air conditioning mode will be described with reference to FIG. 3.

Figure 3 shows the maximum cooling time in the vent (VENT) mode, the temperature control door 130 opens the cold air flow passage (P1), the hot air flow passage (P2) is closed, the mode doors (117) (118) ) 119 only open the face vent 113 and the defrost vent 112 and the floor vent 114, 115 are closed.

Therefore, the air blown by the blower not shown is changed to cold while passing through the evaporator 101, and then supplied to the face vent 113, wherein some of the air supplied to the face vent 113 is centered. The vent 113a is discharged to the center side of the vehicle interior and a part is discharged to both sides of the vehicle interior through the side vent 113b to cool the front seat space.

In this process, some of the air passing through the center vent 113a is smoothly guided by the branch guide 120 and the baffle 126, is supplied to the console vent 116, and then discharged to the rear side of the vehicle console box. The rear seat space is cooled, and a portion of the rear seat space is cooled through the space between the center vent 113a and the branch guide 120 to be discharged toward the center of the vehicle compartment to cool the front seat space.

At this time, the baffle 126 facilitates the flow of air flowing to the console vent 116, thereby reducing the flow resistance in the air conditioning case 110, thereby increasing the total amount of air, and also the branch guide 120. As the size of the air vent is reduced, the air volume of the center vent 113a is increased, and the air volume distribution of the face vent 113 is also improved.

Meanwhile, in addition to the vent mode described above, more various air conditioning modes (by-level mode, floor mode, mix mode, and defrost mode) may be performed.

As described above, in the present invention, only the case where the configuration in which the baffle 126 is additionally formed inside the branch guide 120 is applied to the semi-center type air conditioner has been described, but is not limited thereto. The same method can be applied to all air conditioners such as air conditioners, three-piece type air conditioners, independent left and right controlled air conditioners, and the same effect can be obtained.

1 is a cross-sectional view showing a conventional vehicle air conditioner,

2 is a perspective view showing a conventional vehicle air conditioner,

3 is a cross-sectional view showing a vehicle air conditioner according to the present invention;

4 is an enlarged cross-sectional view of a branch guide and a baffle in FIG. 3;

5 is a plan view showing a vehicle air conditioner according to the present invention,

6 is a perspective view showing a branch guide and a baffle in the vehicle air conditioner according to the present invention;

Figure 7 is a view of analyzing the air flow in the present invention having a baffle and the conventional air conditioning case without a baffle.

<Explanation of symbols for the main parts of the drawings>

100: air conditioner 101: evaporator

102: heater core 110: air conditioning case

111: air inlet 112: defrost vent

113: face vent 113a: center vent

113b: side vent 114,115: floor vent

116: console vent 117,118,119: moddoor

120: branch guide 121: upper surface

122: side portion 125: auxiliary guide means

126: baffle 130: temperature control door

Claims (5)

An air inlet 111 is formed at the inlet side, and at the outlet side from at least one of the defrost vent 112, the face vent 113, the floor vent 114, 115, and the vent 112, 113, 114, 115. An air conditioning case 110 having a branched console vent 116, In the vehicle air conditioner comprising a plurality of mode doors 117, 118, 119 are installed to adjust the opening degree of the defrost vent 112, the face vent 113 and the floor vent 114, 115, respectively, Branch guide 120 is formed at the inlet side of the console vent 116 to guide some of the air passing through the vent of at least one of the vents 112, 113, 114, 115 to the console vent 116. Become, The inside of the branch guide 120, the vehicle air conditioner, characterized in that the auxiliary guide means 125 is provided to further guide the flow of air flowing to the console vent 116 through the branch guide (120). The method of claim 1, The branch guide 120 includes an upper surface portion 121 protruding a predetermined length from the upper side of the inlet of the console vent 116, and a side portion 122 extending downward in both sides of the upper surface portion 121. under, The auxiliary guide means (125) is a vehicle air conditioner, characterized in that the baffle (126) formed across the inner side of both side portions (122) of the branch guide (120). The method of claim 2, The baffle 126 is a vehicle air conditioning apparatus, characterized in that the cross-sectional shape is formed to be curved. The method of claim 1, The auxiliary guide means 125 is disposed at a position corresponding to a dead zone region where the air flow resistance is relatively large in the inside of the branch guide 120, so that the air flowing to the dead zone console vent 116 Vehicle air conditioning apparatus characterized in that guided to). The method of claim 1, The console vent 116 is formed branched from the face vent 113, The face vent 113 is divided into a center vent 113a and a side vent 113b so as to divide and discharge air into the center side and both sides of the vehicle interior, respectively. The branch guide 120 is a vehicle air conditioning apparatus, characterized in that formed to be located inside the center vent (113a).

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