KR20180001627A - Blower unit of two layer type air conditioner for vehicle - Google Patents

Abstract

Disclosed is a blower unit of an air conditioner for a two-layered vehicle capable of implementing three modes including an indoor mode, an outdoor mode, and an indoor and outdoor mixed mode through one door, and downsizing the entire package by reducing the vertical height required to drive the door. The blower unit of an air conditioner for a two-layered vehicle, which comprises a case having an indoor air inlet through which indoor air is introduced and an outdoor air inlet through which outdoor air is introduced, and a blower wheel and a blower motor blowing the air introduced through the indoor and outdoor air inlets into the vehicle, and has an air flow path in the case partitioned into two parts, comprises: a first door part selectively opening and closing the indoor air inlet and the outdoor air inlet; and a second door part selectively partitioning an indoor air flow path and an outdoor air flow path, wherein the first door part and the second door part are interlocked with each other.

Description

TECHNICAL FIELD [0001] The present invention relates to a blowing unit of a vehicle air conditioner,

The present invention relates to an air blowing unit of an air conditioner for a two-tiered vehicle, and more particularly, to a two-tiered air conditioner capable of maintaining a high heating performance while maintaining defoaming performance in heating, To an air blowing unit of an air conditioner for a two-tiered vehicle.

2. Description of the Related Art Generally, a vehicle air conditioner is an apparatus for heating or cooling indoor air by introducing outside air into the room or circulating air in the room to cool or cool the room. The inside of the air conditioner case includes an evaporator for cooling action, A heater core, and the like. The air cooled or heated by the evaporator or the heater core is selectively blown to each part of the vehicle interior.

In particular, a two-layer air conditioning system has been developed to maintain high heating performance while ensuring defogging performance during heating. In the case of winter heating, cold and humid air is effective to remove the frost on the window, but the result is that the room temperature is lowered.

The two-tiered air-conditioning system provides two-layer air flow inside and outside, which supplies the outside air to the upper part of the vehicle and the air to the lower part for de-gaming in heating, thereby effectively eliminating the casting by using fresh and low- At the same time, fresh air is provided to passengers, and warm air is supplied to the lower part to maintain high heating performance.

Japanese Unexamined Patent Publication No. 3900965 (Dec. 12, 2007) proposes a blowing unit of an air conditioner for a two-layered automotive vehicle. 1 is a cross-sectional view showing an air blowing unit of a conventional two-tiered vehicle air conditioning system.

1, the air blowing unit of the air-conditioning apparatus for a two-layered automotive vehicle includes a case 1, an air inflow inlet 11 for inflowing the inflow air into the case 1, and an outside air inflow port 12 for inflowing the outside air . The case 1 is provided with an inside door 43 for adjusting the opening of the inside air inlet 11 and an outside door 44 for adjusting the opening of the outside air inlet 12. Air filters 5 are provided on the downstream side of the inside and outside air doors 43 and 44 in the air flow direction.

A dual fan (2, 3) rotating by a motor is provided on the downstream side of the air filter (5). A partition wall (14) of the case (1) 15 and a second blowing passage 16 are defined. The inner door 43 and the outer door 44 are rotated about the rotary shaft 41, and the partition plate 42 is integrally formed.

The partition plate 42 is composed of a first plate portion 42a extending from the rotary shaft 41 to the arc face side of the case 1 and a second plate portion 42b extending from the rotary shaft 41 to the air filter 5 side . In the two-laminar flow mode, since the tip of the first plate portion 42a is positioned between the inner and outer air inlet openings 11 and 12, the flow path connecting the first air outlet passage 15 and the outside air inlet 12) to the second blowing passage (16).

The conventional air blowing unit of the two-tiered type air conditioner has a problem in that the height of the case is increased because the inner and outer doors are rotated around the rotating shaft to require a predetermined turning radius.

In addition, when the inner and outer doors are constituted by two inner door and outer door rotating on different axes, the number of parts increases and the cam mechanism for driving the two doors becomes complicated and the cost increases.

Japanese Patent Registration No. 3900965 (Jan. 12, 2007)

In order to solve such a conventional problem, in the present invention, it is possible to implement three modes as an air condition mode, an outside mode and an inside / outside mixed mode through a single door and reduce the height required for driving the door, The present invention provides an air blowing unit of an air conditioner for a two-tiered vehicle.

The air blowing unit of the air-conditioning apparatus for a two-layered automobile according to the present invention includes a casing having a room air inflow port for inflowing indoor air and an outdoor air inflow port for inflowing outdoor air, a blower wheel for blowing air, The air blowing unit of a two-ply air conditioning apparatus for a two-layered vehicle, comprising: a motor; a first door unit for selectively opening and closing the indoor air inlet and the outdoor air inlet; And a second door portion for selectively dividing the air flow passage and the outside air flow passage, wherein the first door portion and the second door portion are provided so as to be interlocked with each other.

In the above, when the first door portion is in the position of the indoor / outdoor mixed mode in which both the indoor air and the outdoor air are sucked, the second door portion is moved to the position for partitioning the indoor air passage and the outdoor air passage.

The first door part is slidable along the case arc surface formed with the inflow inlet and the outside air inlet. The first door part is rotatably connected to the case through the rotary shaft and the other side is rotatable And includes a foldable link configured to be foldable.

In this case, the second door part is formed in a plate shape, one side is fixed to the first door part, and is configured to be foldable around the joint axis according to the sliding of the first door part.

In this case, a slot is formed in the case, and a guide pin guided along the slot is provided in the second door portion.

The rotary shaft is positioned eccentrically to one side with respect to the center line between the air inlet and the outdoor air inlet, and the rotary shaft is formed at a higher position than the center point of the circular arc surface formed by the first door.

In the above, the joint axis is located closer to the second door portion than the guide pin in the longitudinal direction of the second door portion.

The slot has a first slot portion extending to one side with respect to a center line between the air inlet and the outside air inlet, a second slot portion extending to the other side, and a second slot portion formed between the first slot portion and the second slot portion A third slot portion; When the guide pin is positioned in the third slot portion, the second door portion is straightly expanded to divide the air passage and the air passage.

In the above, the second door portion is folded toward the first door portion when the first door portion is at the position of the inside mode in which the inside air is sucked or in the outside air mode in which the outside air is sucked.

In the above, when the second door portion is folded toward the first door portion, it is inclined to guide the air introduced through the inflow inlet or the outside air inlet to the lower side.

In the above, when the guide pin is located in the first slot portion or the second slot portion, the second door portion is folded about the joint axis.

In the above, the first slot part and the second slot part are extended in a convex wired form.

The air blowing unit of the air-conditioning apparatus for a two-layered automotive vehicle according to the present invention can realize three modes as one door mechanism, reduce the case height of the intake unit, and minimize the number of components, thereby reducing the cost.

1 is a sectional view showing an air blowing unit of a conventional two-tiered vehicle air conditioning system,
2 is a cross-sectional view illustrating an air blowing unit of a two-tiered vehicle air conditioning system according to an embodiment of the present invention,
FIGS. 3 to 5 illustrate operation of the first door and the second door according to an embodiment of the present invention,
6 is a diagram illustrating an air-condi- tion mode of an air blowing unit of a two-tiered vehicle air-conditioning apparatus according to an embodiment of the present invention,
7 is a view showing an indoor / outdoor air mixing mode of an air blowing unit of a two-tiered vehicle air conditioning system according to an embodiment of the present invention,
8 is a view showing an outdoor mode of an air blowing unit of a two-tiered vehicle air conditioning system according to an embodiment of the present invention.

Hereinafter, the technical structure of the air blowing unit of the air conditioner for a two-tiered vehicle will be described in detail with reference to the accompanying drawings.

FIG. 2 is a cross-sectional view illustrating an air blowing unit of an air conditioner for a two-tiered vehicle according to an embodiment of the present invention, and FIGS. 3 to 5 illustrate operation of the first door unit and the second door unit according to an embodiment of the present invention. FIG.

2 to 5, the air blowing unit 100 of the air conditioner for a two-tiered vehicle according to an embodiment of the present invention includes a case 110, a blower wheel 120 and a blower motor 130, And an air filter (150). The air blowing unit 100 largely comprises an intake unit for sucking in air and a blower unit for blowing air to the cabin side.

The case 110 is formed with an inflow inlet 111 for inflowing indoor air and an outdoor air inlet 112 for inflowing outdoor air. The air inlet opening 111 and the outdoor air inlet opening 112 are formed along an arc surface formed on the upper side of the case 110. [ The case 110 has a scroll case 118 for installing the blower wheel 120 and the blower motor 130 and an inlet ring 117 for introducing air into the upper portion of the scroll case 118 .

The blower wheel 120 and the blower motor 130 blow air introduced through the inside and outside air inflow ports 111 and 112 into the passenger compartment. The air filter 150 is provided in the air flow direction, on the downstream side of the outside air inlet ports 111 and 112, and on the upstream side of the blower wheel 120. The blower wheel 120 has a dual fan structure and is connected to the rotating shaft 131 of the blower motor 130 and rotated.

The inner air flow path of the case 110 is divided into two parts. The air flow path in the case 110 is divided into the first air flow path 115 and the second air flow path 116 by the partition plate 113 formed on the downstream side of the air filter 150. [ On the upstream side of the air filter 150, an internal air flow path and an external air flow path are selectively partitioned by the second door portion 300 to be described later.

The outdoor air flow path is a passage through which the outdoor air flowing through the outdoor air inlet opening 112 flows. In this case, the indoor air and the outdoor air can be divided by the second door portion 300 to be divided into the first air passage 115 and the second air passage 116, respectively, The air can be dividedly flow toward the air passage 115 and the second air passage 116 side. This will be described in more detail below with reference to the drawings.

The air blowing unit 100 includes a first door portion 200, a second door portion 300, and a hinge link 250. The first door portion 200 selectively opens and closes the indoor air inlet 111 and the outdoor air inlet 112. The second door portion 300 selectively divides the air flow path and the outside air flow path. Particularly, the first door part 200 and the second door part 300 are interlocked with each other.

The first door portion 200 is slidably mounted along the arc surface of the case 110 in which the air inlet 111 and the outside air inlet 112 are formed. The first door portion 200 is formed in an annular shape corresponding to the arc surface of the case 110 so that the first door portion 200 can move along the upper arc surface of the case 110.

The one side of the hinge link 250 is rotatably connected to the case 110 through a rotary shaft 220 and the other side of the hinge link 250 is rotatably connected to the first door 200 and is configured to be foldable. The sniffer link 250 is formed of a bar or a rod having a predetermined length and includes a first link 251 and a second link 252.

The first link 251 and the second link 252 are configured to be folded or unfolded through the joint 212. In this case, the first link 251 is rotatably connected to the rotary shaft 220, and the second link 252 is rotatably connected to the first door 200 through the hinge 211. The driving shaft of the actuator, which is a power source for driving the door, is connected to the rotary shaft 220.

When the rotation shaft 220 is rotated, the first door portion 200 is slid along the arc surface of the case 110 having the air inlet opening 111 and the outside air inlet opening 112 as the hinge link 250 is folded or unfolded .

The rotation shaft 220 is positioned eccentrically to one side with respect to a center line between the air inflow inlet 111 and the outside air inlet 112. The center line between the inflow inlet 111 and the inflow inlet 112 coincides with a straight line extending upward from the rotary shaft 131 of the blower motor 130 in FIG. The rotary shaft 220 is located on the left side relative to the center line between the air inflow inlet 111 and the outside air inlet 112, that is, near the outside air inlet 112. In this embodiment,

Further, the rotary shaft 220 is formed above the center point of the arc surface formed by the first door portion 200. In this case, the center point of the circular arc surface formed by the first door portion 200 is a center point of the circle formed by the radius of curvature of the first door portion 200. If the first door portion is formed of a conventional dome door structure without using a hinge link, the dome door is rotated with the center point of the arc surface as the rotation axis. In this case, the rotation axis must be spaced by the radius of the arc formed by the dome door Should be secured.

The air blowing unit 100 according to an embodiment of the present invention is configured such that the rotary shaft 220 is moved upward by a predetermined length without being positioned below the radius of curvature of the first door part 200, The first door unit 200 can be driven. As a result, the total height of the intake can be reduced by reducing the radius in comparison with the dome door. As a result, the height h between the air filter 150 and the inlet ring 117 of the scroll case 118 can be sufficiently secured So that the air passing through the air filter 150 can smoothly flow to the lower end of the blower.

The second door portion 300 is in the form of a plate having a flat plate shape. One side of the second door portion 300 is fixed to the first door portion 200. The second door portion 300 is configured to be foldable around the joint axis 320 in accordance with the sliding of the first door portion 200. That is, the second door part 300 is unfolded or folded according to the sliding position of the first door part 200.

More specifically, the second door portion 300 includes a first plate portion 310 and a second plate portion 330. One side of the first plate portion 310 is fixed to the first door portion 200 and the other side of the first plate portion 310 is rotatably connected to the second plate portion 330 by the joint shaft 320. The second plate portion 330 is rotatable with respect to the first plate portion 310 about the joint axis 320.

A slot 119 is formed in the case 110. In addition, the second door portion 300 is provided with a guide pin 340 guided along the slot 119. The guide pin 340 is provided on the second plate portion 330 of the second door portion 300. The slot 119 is composed of a first slot portion 1192, a second slot portion 1193, and a third slot portion 1191.

The first slot portion 1192 extends toward one side, that is, toward the outside air inlet 112, with reference to a center line between the inflow inlet 111 and the outside air inlet 112. The second slot portion 1193 extends to the other side, that is, the inflow inlet 111 side, with reference to the center line between the inflow inlet 111 and the outside air inlet 112. The first slot portion 1192 and the second slot portion 1193 are both formed in a streamlined shape and are formed to be convex upward.

The third slot portion 1191 is formed between the first slot portion 1192 and the second slot portion 1193. The third slot 1191 is formed in parallel with the center line between the inflow inlet 111 and the inflow inlet 112, that is, the straight line extending upward from the rotary shaft 131 of the blower motor 130.

The joint shaft 320 is located closer to the second door part 300 than the guide pin 340 in the longitudinal direction of the second door part 300. [ 3 or 5, when the guide pin 340 of the second door part 300 moves along the slot 119, the second door part 300 moves about the joint axis 320 And can be folded toward the first door part 200 side.

The second door portion 300 is folded toward the first door portion 200 when the first door portion 200 is in the inside mode in which the inside air is sucked or in the outside air mode in which the outside air is sucked. In this case, when the second door portion 300 is folded toward the first door portion 200, it is inclined so as to guide the air introduced through the inside air inlet 111 or the outside air inlet 112 downward.

More specifically, when the guide pin 340 is positioned in the first slot portion 1192 or the second slot portion 1193, the second door portion 300 is folded about the joint axis 320.

Referring to FIG. 3, when the guide pin 340 is positioned in the first slot 1192, the second door part 300 is moved to the joint axis 320 toward the inflow inlet 111. 5, when the guide pin 340 is positioned in the second slot portion 1193, the second door portion 300 is in contact with the joints 300, And is folded toward the outside air inlet 112 around the shaft 320. [

When the first door portion 200 is in the internal / external mixing mode where both the indoor air and the outdoor air are sucked, the second door portion 300 is moved to a position where the indoor air passage and the outdoor air passage are divided and partitioned.

More specifically, when the guide pin 340 is positioned in the third slot portion 1191, the second door portion 300 is straightly expanded to divide the air flow passage and the air flow passage. Referring to FIG. 4, when the guide pin 340 is positioned in the third slot 1191, the second door portion 300 is in a straight line So as to function as a partition for partitioning the air flow path and the outside air flow path.

6 is a diagram illustrating an air mode of the air blowing unit of the air conditioner for a two-tiered vehicle according to an embodiment of the present invention.

Referring to FIG. 6, in the stow mode, the first door portion 200 closes the outside air inlet 112, and the second door portion 300 is folded. Therefore, a part of the inside air flowing through the inside air inflow port 111 flows toward the first air flow path 115, and the other part flows toward the second air flow path 116 side.

FIG. 7 illustrates an indoor / outdoor mixed mode of an air blowing unit of a two-tiered vehicle air conditioning system according to an embodiment of the present invention.

6, the first door portion 200 moves in the clockwise direction at the inner mode position of FIG. 6 to move the outer air inlet 112 and the inner air inlet 111 to a substantially middle position . The first door portion 200 partially opens the outside air inlet 112 and the inside air inlet 111, respectively. When the first door part 200 moves in the clockwise direction, the second door part 300 is linearly expanded to form a partition wall separating the air flow path and the outside air flow path. Therefore, the inside air flowing through the air inflow port 111 flows to the first air flow path 115 side, and the outside air flowing through the outside air inflow port 112 flows to the second air flow path 116 side.

8 is a view showing an outdoor mode of an air blowing unit of a two-tiered vehicle air conditioning system according to an embodiment of the present invention.

Referring to FIG. 8, in the open air mode, the first door portion 200 moves a little further clockwise at the internal / external mixing mode position of FIG. The first door portion 200 closes the air inlet opening 111, and the second door portion 300 is folded. Therefore, a part of the outside air flowing through the outside air inlet 112 flows toward the first air flow path 115, and the other part flows toward the second air flow path 116 side.

The air blowing unit 100 of the air conditioner for a two-tiered vehicle according to an embodiment of the present invention can realize three modes as one door mechanism, can reduce the case height of the intake unit, Can be saved.

Up to now, the air blowing unit of the air conditioner for a two-layered automotive vehicle according to the present invention has been described with reference to the embodiment shown in the drawings, but it is merely an example, and various modifications and equivalent embodiments can be made by those skilled in the art . Accordingly, the scope of the true technical protection should be determined by the technical idea of the appended claims.

100: blowing unit
110: Case 111: Inflow inlet
112: outside air inlet 113: partition plate
115: first air passage 116: second air passage
117: inlet ring 118: scroll case
120: Blower wheel 130: Blower motor
150: air filter 200: first door part
220: rotating shaft 250:
300: second door part 320: joint shaft
340: guide pin 119: slot

Claims (12)

A blower wheel 120 for blowing the air introduced through the inside and outside air inflow ports 111 and 112 into the passenger compartment, a case 110 having an air inflow port 111 for inflowing air and an outside air inflow port 112 for inflowing outside air, And a blower motor 130,
A first door part 200 for selectively opening and closing the indoor air inlet port 111 and the outdoor air inlet port 112; And
And a second door part (300) for selectively dividing the air flow path and the outside air flow path,
Wherein the first door part (200) and the second door part (300) are interlocked with each other. The method according to claim 1,
The second door portion 300 is moved to a position where the inside air flow path and the outside air flow path are divided and partitioned when the first door portion 200 is in the position of the inside / outside air mixing mode in which both the inside air and the outside air are sucked And the air blowing unit of the vehicle air conditioner. The method according to claim 1,
The first door part 200 is slidable along the arc surface of the case 110 formed with the inflow inlet 111 and the outside air inlet 112,
(250) rotatably connected to the case (110) through the rotary shaft (220) and the other end rotatably connected to the first door part (200) and configured to be foldable And the air blowing unit of the air conditioner for a vehicle. The method according to claim 1,
The second door part 300 has a plate shape and is fixed to the first door part 200 at one side and is folded about the joint axis 320 according to sliding of the first door part 200. [ The air blowing unit of the vehicle air conditioner. 5. The method of claim 4,
A slot 119 is formed in the case 110,
Wherein the second door part (300) is provided with a guide pin (340) guided along the slot (119). The method of claim 3,
The rotation shaft 220 is positioned eccentrically to one side with respect to a center line between the inflow inlet 111 and the outside air inlet 112,
Wherein a rotational axis (220) is formed at a higher position than a center point of an arc surface formed by the first door portion (200). 6. The method of claim 5,
Wherein the joint shaft (320) is located closer to the second door part (300) than the guide pin (340) in the longitudinal direction of the second door part (300). 6. The method of claim 5,
The slot 119 includes a first slot portion 1192 extending to one side with respect to a center line between the air inlet 111 and the outside air inlet 112, a second slot portion 1193 extending to the other side, And a third slot portion 1191 formed between the first slot portion 1192 and the second slot portion 1193;
Wherein when the guide pin (340) is positioned in the third slot (1191), the second door portion (300) is straightened to divide the air flow passage and the outdoor air flow passage. The method according to claim 1,
The second door portion 300 is folded toward the first door portion 200 when the first door portion 200 is in the inside mode for sucking indoor air or in the outdoor mode for sucking outside air. The air blowing unit of the vehicle air conditioner. 10. The method of claim 9,
Is configured to be inclined so as to guide the air introduced through the inside air inlet (111) or the outside air inlet (112) downward when the second door part (300) is folded toward the first door part (200) Air blowing unit of air conditioner. 9. The method of claim 8,
Wherein the second door part (300) is folded about the joint axis (320) when the guide pin (340) is located in the first slot part (1192) or the second slot part (1193) Air blowing unit of air conditioner. 9. The method of claim 8,
Wherein the first slot part (1192) and the second slot part (1193) are extended in a convex wired shape upward.

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