KR20110124649A - Air conditioner for vehicle - Google Patents

Abstract

PURPOSE: An air conditioning device of a vehicle is intended to ensure light weight by changing the structures of an actuator and a door driving cam. CONSTITUTION: An air conditioning device of a vehicle comprises an air conditioning case(10) and a mode door. The air conditioning case comprises a defrost vent(12a), a face vent(12b), and a floor vent(12d). The mode door comprises a defrost door realizing a plurality of air conditioning modes, a face door, and a floor door. The air conditioning mode comprises a vent mode, a bi-level mode, and a plurality of temporary defrost modes. The vent mode discharges air only to the face vent. The bi-level mode discharges some air to the face vent and discharges remaining air to the floor vent.

Description

Air conditioner for vehicle

The present invention relates to an air conditioner of an automobile, and more particularly, to a bi-level mode in a vent mode in an air conditioner capable of implementing an air conditioning mode consisting of a vent mode, a bilevel mode, a floor mode, a mixing mode, and a defrost mode. In the process of changing the air conditioning mode to the furnace, it is possible to implement a plurality of temporary deep modes in which the opening area of the defrost vent is controlled in multiple stages without changing the structure of a single actuator and the mode door driving cam without using a separate deep mode implementation dedicated actuator. In addition, the present invention relates to a vehicle air conditioner capable of reducing manufacturing cost for implementing an air conditioner and reducing the weight of the air conditioner.

In general, a car air conditioner is a vehicle installed for the purpose of securing the driver's front and rear view by removing the frost from the windows in the summer or winter, or during rainy or winter seasons. As a built-in product, such an air conditioner is usually equipped with a heating device and a cooling device at the same time to selectively introduce outside air or bet, and then heat or cool the air to blow it into the vehicle interior to cool, heat or ventilate the interior of the car. do.

The air conditioner includes a three piece type in which the three units are independently provided according to independent structures of a blower unit, an evaporator unit, and a heater core unit, and an evaporator unit and a heater core unit in an air conditioning case. The semi-center type, which is built in and the blower unit is provided as a separate unit, and the center mounting type, in which all three units are built in the air conditioning case, can be roughly classified.

1 shows the semi-center type air conditioner, wherein the air conditioner 1 has an inlet / outer air inlet 11 formed at an inlet side and a mode door 16, 17, 18 at the outlet side, respectively. An air conditioning case (10) having a defrost vent (12a), a face vent (12b), and floor vents (12c, 12d) having an adjustable opening degree; A blower (not shown) connected to the air inlet 11 of the air conditioning case 10 to blow inside or outside air introduced by an intake door (not shown) for selectively opening and closing the inside / outdoor air inlet 11 to switch the inside and outside air. O); 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.

Here, the mode door corresponding to the member number 16 among the mode doors 16, 17, and 18 is a defrost door for adjusting the opening degree of the defrost vent 12a, and the mode door corresponding to the member number 17 is a face vent ( 12b) is a face door for adjusting the opening degree, and the mode door corresponding to the member number 18 is a floor door for adjusting the opening degree of the floor vents 12c and 12d.

Further, the floor vents 12c and 12d are separated into a front seat vent 12c and a rear seat vent 12d.

The temperature control door 15 and the mode doors (16, 17, 18) are connected to an actuator (not shown) installed on the outer surface of the air conditioning case 10 and rotated to operate the cold, hot air flow path (P1) ( The opening degree of P2) is adjusted or the opening degree of the flow path toward each of the vents 12a to 12d is adjusted.

According to the air conditioner 1 of the vehicle configured as described above, when the maximum cooling mode is operated, the temperature control door 15 opens the cold air flow passage P1 and opens the hot air flow passage P2. Will be closed. Accordingly, the air blown by the blower not shown is exchanged with the refrigerant flowing through the evaporator 2 while passing through the evaporator 2 to be changed to cold, and then the mixing chamber (Mixing) through the cold air flow path (P1). The chamber is flowed toward the chamber (MC), and then discharged to the vehicle interior through the vent (12a ~ 12d) is opened in accordance with the predetermined air conditioning mode, thereby cooling the vehicle interior.

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 cooling water 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 into the vehicle interior through the vents 12a to 12d opened according to a predetermined air conditioning mode, thereby heating the vehicle interior.

냉방모드가 가동될 경우에는, 상기 온도조절도어(15)는 중립위치로 회전하여, 상기 믹싱챔버(MC)에 대하여 상기 냉풍유로(P1) 및 온풍유로(P2)를 모두 개방시킨다. 따라서, 증발기(2)를 거친 냉기와 히터코어(3)를 거친 온기가 믹싱챔버(MC) 쪽으로 유동하여 혼합된 후, 소정의 공조모드에 따라 개방되는 벤트(12a~12d)를 통해 차량 실내로 토출된다.And, not the maximum cooling mode cooling mode, that is,

When the cooling mode is activated, the temperature control door 15 rotates to a neutral position to open both the cold air passage P1 and the hot air passage P2 with respect to the mixing chamber MC. Therefore, after the cool air passed through the evaporator 2 and the warm air passed through the heater core 3 are mixed by flowing toward the mixing chamber MC, the vents 12a to 12d are opened to the vehicle interior through the air conditioning mode. Discharged.

Here, the temperature control door 15 and the mode doors (16, 17, 18), the rotary shaft 15a (16a, 17a, 18a) rotatably installed on both side walls of the air conditioning case 10, and the rotary shaft ( 15a) (16b, 17b, 18b) formed on one side of (16a, 17a, 18a), wherein the rotating shaft (16a, 17a, 18a) of the mode door (16, 17, 18a) Pivot doors with plates 16b, 17b, and 18b formed on both sides of may also be used.

On the other hand, the air conditioner of the vehicle described above can implement a separate air conditioning mode by the operating angle of the mode door (16, 17, 18), this air conditioning mode is a face vent of the mixing air mixed with cold air / warm air or hot air Vent mode for discharging only to (12b), and bi-level (B) for discharging some of the mixing air in which cold / hot or cold / hot air is mixed to the face vent 12b, and discharging the remaining air to the floor vents 12c and 12d. / L) mode, the floor mode for discharging the mixing air mixed with cold / hot or cold air only to the floor vents 12c and 12d, and the part of the mixing air mixed with cold / hot or cold air is the defrost vent 12a. ) And the remaining mode is the mixing mode for discharging the floor vents 12c and 12d, and the dipping mode for discharging the mixing air mixed with cold / hot / cold / hot air only to the defrost vent 12a.

Such mode doors 16, 17, and 18 are operated in conjunction with the operation switch as the driver or the passenger operates the air conditioner control operation switch (not shown) of the instrument panel, thereby operating any one of the above-described air conditioning modes. Will be implemented.

On the other hand, a vehicle equipped with the air conditioner as described above, due to the temperature difference between the outdoor and the indoor, when the humidity is high, water vapor condenses on the window of the vehicle (fogging) occurs to block the view.

Therefore, most vehicles are equipped with a defogging system that selects a defrost mode or a mixing mode so that air is discharged through the defrost vent 12a of the air conditioner when fog is generated.

This defogging system detects fog in the window early and suppresses the generation of fog, and removes it early when fog occurs, thereby enhancing the driver's safety and ensuring comfort by ensuring a smooth watch. .

In order to defogging, the driver or passenger occupying the passenger seat is manually operated to operate an air conditioner or a heater, and the defogging method by manual operation is cumbersome in operation and has a problem in safe driving. Detect whether fog has occurred in the window of the car to automatically trigger the defogging system when the fog is expected or when the fog occurs, to suppress the occurrence of fog and to remove the already generated fog As one technique is being developed, Korean Patent Application Publication No. 10-2007-0062728 (hereinafter, referred to as "prior art") is an example.

In the above-described prior art, the defrost door 16 (refer to FIG. 1) is independently controlled by a controller, and a separate driving motor is independent of the operation of the face door and the floor door among the plurality of mode doors shown in FIG. 1. It is driven by the actuator of.

However, according to the related art, in addition to the actuator for driving the face door and the floor door, the defogging control can be automatically implemented only when a separate actuator for driving the defrost door 16 is additionally installed. As a result, the cost increase and the weight increase for implementing the air conditioner have also been caused.

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems as described above, and the air conditioner which can implement an air conditioning mode consisting of a vent mode, a bi-level mode, a floor mode, a mixing mode, and a defrost mode is used in a vent mode. In the process of changing the air conditioning mode to the level mode, it is possible to implement a plurality of temporary deep modes in which the opening area of the defrost vent is multi-stage controlled by changing the structure of a single actuator and the mode door driving cam without using a separate deep mode implementation dedicated actuator. It can be expected to reduce the manufacturing cost for implementing the air conditioner, as well as to provide a vehicle air conditioner to reduce the weight of the air conditioner.

Another object of the present invention is to provide an air conditioner of an automobile in which the defrost vent is opened in the floor mode so that air can be discharged through the defrost vent.

The present invention for achieving the above object, the air conditioning case formed with a defrost vent and a face vent and a floor vent; The defrost door and the face door and the floor door are rotatably installed inside the air conditioning case and individually control the opening degree of the defrost vent, the face vent, and the floor vent to realize a plurality of air conditioning modes. An air conditioner for a vehicle including a mode door, the air conditioning mode comprising: a vent mode for discharging air only through a face vent; A bilevel mode for discharging a portion of the air to the face vent and discharging the rest to the floor vent; And a plurality of temporary deep modes in which the opening area of the defrost vent is multi-stage controlled when the mode is changed in the interval between the vent mode and the bi-level mode, wherein the vent mode, the plurality of temporary deep modes, and the bilevel It characterized in that it comprises a mode door driving means for controlling the mode to be changed sequentially.

According to the air conditioner of a vehicle according to the present invention can be expected the following effects.

First, an actuator dedicated to implementing a separate deep mode in the process of changing the air mode from the vent mode to the bi-level mode in an air conditioner capable of implementing an air conditioning mode consisting of a vent mode, a bilevel mode, a floor mode, a mixing mode, and a defrost mode. It is possible to realize a plurality of temporary dip modes in which the opening area of the defrost vent is controlled in multiple stages by only changing the structure of a single actuator and a mode door driving cam without using a circuit, thereby reducing the manufacturing cost for implementing the air conditioner. In addition to reducing the weight of the air conditioner,

Second, in the floor mode, the defrost vent may be opened to allow air to be discharged through the defrost vent.

1 is a cross-sectional view showing the internal configuration of a vehicle air conditioner according to the prior art.
Figure 2 is an external perspective view of a vehicle air conditioner equipped with a single actuator and a mode door drive cam according to the present invention.
Figure 3 is a front view of the mode door drive cam arm is installed in the mode door drive cam according to the present invention shown in FIG.
Figure 4 is a front view of the mode door drive cam showing the position of the air conditioning mode section in the guide slot for the defrost door, the guide for the face door, the guide slot for the floor door of the mode door drive cam according to the present invention.
5 (a) to (g) are shown in order the air conditioning mode implemented in the present invention, a state in which the defrost door, the face door and the floor door according to this air conditioning mode is driven rotationally.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the air conditioner of the vehicle according to the present invention will be described in detail. Here, it is noted in advance that among the constituent members of the present invention, constituent members overlapping with the prior art have been given the same member numbers as in the prior art.

The present invention provides an air conditioning case 10 including a defrost vent 12a, a face vent 12b, and floor vents 12c and 12d; The air conditioning case 10 is installed to be rotatable through a rotating shaft, and the respective openings of the defrost vent 12a, the face vent 12b, and the floor vents 12c and 12d are individually adjusted. The present invention relates to a vehicle air conditioner including a defrost door 16, a face door 17, and a floor door 18 that implement an air conditioning mode, and the air conditioning mode is changed from a vent mode to a bi-level mode. When the defrost vent 12a is opened, and conversely, the defrost vent 12a is opened when the air conditioning mode is changed from the bilevel mode to the vent mode, so that the mixing air in which cold / hot or cold / hot air is mixed is defrosted. Defogging control was made possible by discharging to the vehicle interior through the vent 12a.

Preferably, the air conditioning mode according to the present invention includes a vent mode for discharging air only to the face vent 12b; A bilevel mode for discharging part of the air to the face vents 12b and discharging the remaining air to the floor vents 12c and 12d; And a plurality of temporary deep mode in which the opening area of the defrost vent 12a is multi-stage controlled when the mode is changed in the interval between the vent mode and the bi-level mode, wherein the vent mode, the plurality of temporary deep mode, It comprises a mode door driving means for controlling the bi-level mode to be changed sequentially.

Mode door driving means according to the present invention, by rotating the mode door (16, 17, 18) or the non-rotating guide slot 31 for the defrost door 31, the face door to form a pattern to implement the air conditioning mode Guide slot 32 for the floor, guide slot 33 for the floor is formed and consists of a mode door drive cam 30 is rotated about the rotation center point (0) on the outer surface of the air conditioning case 10, defrost door The guide slot 31 for the face, the guide slot 32 for the face door, and the guide slot 33 for the floor door are the vent mode, the plurality of temporary dip modes, and the bilevel mode when the mode door driving cam 30 is rotated. Are formed in a pattern that is sequentially implemented.

Accordingly, the present invention includes a vent mode and a bilevel mode of the air conditioning mode, and when the air conditioning mode is changed from the vent mode (see FIG. 5 (a)) to the bilevel mode (see FIG. 5 (d)) or the bilevel mode. When changing the air conditioning mode from (see FIG. 5 (d)) to the vent mode (see FIG. 5 (a)), an imdy that opens the defrost vent 12a so that a part of the air is discharged through the defrost vent 12a. By improving the structure of the mode door driving cam 30 so as to implement the deep mode (see FIG. 5 (b) (c)), manufacturing cost can be reduced.

Here, the mode door driving cam 30 is formed in a plate-like shape which is installed on the outer surface of the air conditioning case 10 with respect to the rotation center point O as a reference.

In addition, the driving shaft 51 of the single actuator 50 is coupled to the rotation center point O of the mode door driving cam 30, and more specifically, to the rotation center point O of the mode door driving cam 30. The coupling shaft to which the drive shaft 51 is coupled is formed.

Then, the single actuator 50 is fixed to the outer surface of the air conditioning case 10 via the bracket 52.

Therefore, since the single actuator 50 is fixedly installed in the air conditioning case 10 by the bracket 52, the mode door drive cam 30 is attached to the drive shaft 51 of the actuator 50, and the air conditioning case 10 was carried out. It can be installed to be rotatable about the outer surface. That is, as the drive shaft 51 is rotated, the mode door drive cam 30 is rotated in the right direction or the left direction.

Therefore, the present invention, unlike the prior art, a single actuator 50 and the mode door drive cam 30 without using a separate deep mode implementation dedicated in the air conditioning mode change process from the vent mode to the bi-level mode By changing the structure of the plurality of temporary deep mode can be implemented, as well as to reduce the manufacturing cost for implementing the air conditioner can reduce the weight of the air conditioner.

The guide slot 31 for the defrost door, the guide slot 32 for the face door, and the guide slot 33 for the floor door according to the present invention are used after the air conditioning mode is changed to the bi-level mode. A floor mode (see Fig. 5 (e)) for discharging air to the floor vents 12c and 12d by rotating or non-rotating 17 and 18; A mixing mode (see Fig. 5 (f)) for discharging a part of the air to the defrost vents 12c and 12d and discharging the rest to the floor vents 12c and 12d; A further pattern in which a deep mode (see FIG. 5 (g)) for discharging air only to the defrost vent 12a is further formed, and the bi-level mode, floor mode, mixing mode, and deep mode are controlled by the mode door driving means. It can be configured to be controlled to change sequentially.

Meanwhile, among the air conditioning modes according to the present invention, the plurality of temporary deep modes shown in FIGS. 5 (b) and (c) are changed from the vent mode (see FIG. 5 (a)) to the bilevel mode (see FIG. 5 (b)). When the mode is changed, the opening area of the defrost vent 12a is made to increase stepwise.

That is, as shown in FIG. 5 (b), a temporary deep mode that opens about 40% of the total opening area of the defrost vent 12a is implemented, and as shown in FIG. 5 (c), the defrost vent ( A temporary deep mode is implemented in which about 70% of the total open area of 12a) is opened.

In other words, the guide slot 31 for the defrost door has an opening area (40%) of the defrost vent 12a in the section between the vent mode position and the bilevel mode position when the mode is changed from the vent mode to the bilevel mode. -> 70%) in a stepwise increasing pattern.

On the other hand, the guide slot 31 for the defrost door of the present invention further includes being formed in a pattern for rotating the defrost door 16 to open the defrost vent 12a in the floor mode. e) reference)

The basic configuration and operation of the present invention have been described so far, and the configuration of the present invention will be described in detail below.

3 and 4, the face door furthest from the one side 31a of the guide slot 31 for the defrost door and the one side 31a of the guide slot 31 for the defrost door. One side 32a of the guide slot 32 for use and one side 33a of the floor door guide slot 33 furthest from the one side 32a of the face door guide slot 32 are in a vent mode (V) section. ego; The other side 31b of the guide slot 31 for a defrost door, the other side 32b of the guide slot 32 for a face door, and the other side 33b of the guide slot 33 for a floor door form a deep mode ( D) section; Between one side 31a, 32a, 33a and the other side 31b, 32b, 33b of the guide slot 31 for a defrost door, the guide slot 32 for a face door, and the guide slot 33 for a floor door, respectively, is orderly A plurality of temporary deep mode (D1, D2) sections; Bi-level mode (Bi) section; Floor mode (F) section; It is a mixing mode (M) section.

Here, each of the patterns of the defrost door guide slot 31, the face door guide slot 32, and the floor door guide slot 33 may be a vent mode (V) section and a plurality of temporary dip modes. (D1, D2) section, bi-level (Bi) mode section, floor mode (F) section, mixing mode (M) section, deep mode (D) section is the rotation center point (O) of the mode door drive cam 30 It is formed to have a different radius (R1, R2, R3, R4, R6, R7) around.

3, the defrost door 16, the face door 17 and the floor door 18 are rotated or non-rotated according to the rotation of the mode door driving cam 30. Further provided with a transmission means, in one embodiment, one side is each of the guide slot for the defrost door 31, the guide slot 32 for the face door, the guide slot 33 for the floor door of the mode door drive cam 30 The pin 41 is provided to be slidably inserted into the other side, the other side is coupled to the rotation shaft (16a) (17a) (18a) of each of the defrost door 16, the face door (17) and the floor door (18) The arm 40 further includes an arm 40 which transmits the defrost door 16, the face door 17, and the floor door 18 to be rotated or non-rotated according to the rotation of the mode door driving cam 30.

Hereinafter, the operation of the present invention configured as described above will be described as a whole air conditioning mode is implemented.

First, the state of FIG. 4 and FIG. 5A is a state in which the air conditioning mode is a vent mode, that is, a state in which air is discharged only to the face vent 12b. In this state, the defrost vent 12a and the floor vents 12c and 12d are closed by the defrost door 16 and the floor door 18, and only the face vent 12b is closed by the face door 17. It is open.

Next, in the state shown in FIG. 5A as described above, a predetermined voltage is applied to drive the single actuator 50. In this case, when the mode door driving cam 30 is rotated by a driving force of the actuator 50 by a predetermined angle θ1 to the direction of the arrow A, that is, to the right, as shown in FIG. 4, the mode door driving cam ( When 30 is rotated by a predetermined angle θ1, the defrost door 16 is in a state of being rotated by a predetermined angle because the pattern of the guide slot 31 for the defrost door is rotated by the defrost door 16. This is because it is bent in a pattern that can be. Therefore, the temporary frost mode D1 is implemented in which the defrost vent 12a opens only about 40% of the total open area of the defrost vent 12a. At this time, the face vent 12b is rotated by the pattern shape of the guide slot 32 for the face door so that the face door 17 is rotated to a predetermined value rather than the maximum open state, and the floor vents 12c and 12d are the floor doors. The floor doors 12c and 12d are not rotated by the pattern shape of the guide slot 33 for dragon, and are in a closed state.

Next, in the state shown in FIG. 5B as described above, a predetermined voltage is further applied to drive the single actuator 50. In this case, if the mode door driving cam 30 is rotated by a driving force of the actuator 50 in the direction of the arrow A, that is, to the right by a predetermined angle θ2, as shown in FIG. 4, the mode door driving cam ( When 30 is rotated by a predetermined angle θ2, the defrost door 16 is rotated further by a predetermined angle, because the pattern of the guide slot 31 for the defrost door is that the defrost door 16 This is because they are bent in a pattern that can be rotated. Therefore, the temporary frost mode D2 is implemented in which the defrost vent 12a opens only about 70% of the total open area of the defrost vent 12a. At this time, the face vents 12b are maintained in the open state as shown in FIG. 5 (b), and the floor vents 12c and 12d have the floor doors 12c and 12d formed by the pattern of the guide slots 33 for the floor doors. It is not rotated and is in a closed state.

Next, in the state shown in FIG. 5 (c) as described above, a predetermined voltage is further applied to drive the single actuator 50. In this case, when the mode door driving cam 30 is rotated by a driving force of the actuator 50 by a predetermined angle θ3 to the direction of the arrow A, that is, to the right, as shown in FIG. 4, the mode door driving cam ( When 30 is rotated by the predetermined angle θ3, the defrost door 16 is rotated further by a predetermined angle, because the pattern of the guide slot 31 for the defrost door is the defrost door 16 This is because they are bent in a pattern that can be rotated. Thus, the defrost vent 12a is completely closed as shown in Fig. 5 (d). At this time, the face vent 12b is rotated by the pattern shape of the face slot guide slot 32 so that the face door 17 is turned to the maximum open state, and the floor vents 12c and 12d are the guide slot 33 for the floor door. The floor doors 12c and 12d are rotated by the pattern shape of the crankshaft to maintain the maximum open state.

Next, in the state shown in FIG. 5 (d) as described above, a predetermined voltage is further applied to drive the single actuator 50. In this case, if the mode door driving cam 30 is rotated by a driving force of the actuator 50 by a predetermined angle θ4 to the direction of the arrow A, that is, to the right, as shown in FIG. 4, the mode door driving cam ( When 30 is rotated by the predetermined angle θ4, the defrost door 16 is rotated further by a predetermined angle, because the pattern of the guide slot 31 for the defrost door is determined by the defrost door 16. This is because they are bent in a pattern that can be rotated. Thus, as shown in Fig. 5E, the defrost vent 12a opens only about 50% of the total open area of the defrost vent 12a. In this case, the face vent 12b is rotated by the pattern shape of the face slot guide slot 32 to be completely closed, and the floor vents 12c and 12d are guide slots 33 for the floor door. The floor doors 12c and 12d are not rotated by the pattern shape of Fig. 3), and the maximum open state is maintained as shown in FIG. 5 (d).

Next, in the state shown in FIG. 5 (d) as described above, a predetermined voltage is further applied to drive the single actuator 50. In this case, when the mode door driving cam 30 is rotated by a predetermined force θ5 in the direction of an arrow A, that is, to the right by the driving force of the actuator 50, as shown in FIG. 4, the mode door driving cam ( When 30 is rotated by a predetermined angle [theta] 5, as shown in Fig. 5 (f), the defrost door 16 is formed in Fig. 5 (e) by the pattern of the guide slot 31 for the defrost door. It remains open as shown. At this time, the face vent 12b is not rotated by the pattern shape of the guide slot 32 for the face door, so that the face door 17 is not completely rotated as in the vent mode as shown in FIG. do. In addition, the floor vents 12c and 12d may maintain the maximum open state as shown in FIG. 5E without the floor doors 12c and 12d being rotated by the pattern shape of the floor door guide slot 33.

Finally, in the state shown in FIG. 5 (f) as described above, a predetermined voltage is further applied to drive the single actuator 50. In this case, if the mode door driving cam 30 is rotated by a driving force of the actuator 50 by a predetermined angle θ6 to the direction of the arrow A, that is, to the right, as shown in FIG. 4, the mode door driving cam ( When the 30 is rotated by the predetermined angle θ6, the defrost door 16 is rotated further by a predetermined angle, because the pattern of the guide slot 31 for the defrost door is defined by the defrost door 16. This is because they are bent in a pattern that can be rotated. Thus, as shown in Fig. 5 (g), the defrost vent 12a is fully open. At this time, the face vent 12b is not rotated by the pattern shape of the guide slot 32 for the face door, so that the face door 17 is maintained in a fully closed state as in the vent mode as shown in FIG. do. In addition, the floor vents 12c and 12d rotate the floor doors 12c and 12d by the pattern shape of the guide slot 33 for the floor door to maintain a completely closed state.

The operation description so far is to rotate the mode door drive cam 30 in the direction of the arrow A, so that the air conditioning mode is the vent mode (V), the plurality of temporary deep mode (D1, D2), the bi-level mode (Bi), the floor The process of changing the mode (F), the mixing mode (M), and the deep mode (D) has been described, but the reverse order is the deep mode (D), the mixing mode (M), the floor mode (F), and the bilevel mode. (Bi), changing the plurality of temporary deep mode (D1, D2), vent mode (V) in order is implemented by rotating the mode door drive cam 30 in the opposite direction of the arrow (A), detailed description thereof will be omitted. do.

In addition, the voltage applied to the actuator 50 to implement the air conditioning mode of the present invention is as follows.

0.3V is applied when the vent mode (V) is implemented, 0.6V is applied when the temporary deep mode (D1) is implemented, 1.0V is applied when the temporary deep mode (D2) is implemented, and the bilevel mode (Bi) is applied. 1.4V is applied in the implementation, 2.5V is applied in the floor mode (F) implementation, 3.6V is applied in the implementation of the mixing mode (M), and 4.7V is applied in the implementation of the deep mode (D). .

In addition, the present invention is divided into two temporary dip modes (D1, D2) according to the amount of fogging detected by the fog sensor (not shown) for detecting the fog detection amount of the window (not shown) in two steps Can be controlled. Therefore, when fogging occurs in the window while driving in the normal vent mode (V), the power consumption can be reduced by applying a small voltage of 0.6 V or 1.0 V to the actuator 50, and the vent mode (V). You can respond as soon as possible to fogging immediately.

In the present invention, the defrost vent 12a can be opened even when the floor mode F is implemented, so that the defrost vent 12a is opened in all modes except the vent mode and the bilevel mode. If this occurs, it is possible to quickly eliminate the fogging phenomenon.

Therefore, the present invention improves the pattern of the defrost door guide slot 31, the face door guide slot 32, and the floor door guide slot 33 formed on the mode door drive cam 30. It is possible to implement a plurality of temporary deep mode (D1, D2) in the interval between the vent mode (V) and the bi-level mode (Bi) by applying the two actuators (50), additionally, when the floor mode (F) By implementing the frost vent 12a partially open, unlike the prior art, a single actuator 50 and a mode are not used in the process of changing the air conditioning mode from the vent mode to the bi-level mode without using a separate diff mode implementation-specific actuator. By changing the structure of the door driving cam 30 can implement a plurality of temporary deep mode, not only can be expected to reduce the manufacturing cost for implementing the air conditioner can reduce the weight of the air conditioner The.

10: air conditioning case 12a: defrost vent
12b: face vent 12c, 12d: floor vent
16: defrost door 17: face door
18: floor door 30: mode door drive cam
31: guide slot for defrost door 32: guide slot for face door
33: guide slot for floor door 40: arm
41: pin 50: actuator

Claims (8)

An air conditioning case 10 in which a defrost vent 12a, a face vent 12b, and floor vents 12c and 12d are formed; The air conditioning case 10 is installed to be rotatable through a rotating shaft, and the respective openings of the defrost vent 12a, the face vent 12b, and the floor vents 12c and 12d are individually adjusted. In the vehicle air conditioner comprising a mode door consisting of a defrost door 16, a face door 17 and a floor door 18 to implement the air conditioning mode,
The air conditioning mode includes a vent mode for discharging air only to the face vent 12b; A bilevel mode for discharging part of the air to the face vents 12b and discharging the remaining air to the floor vents 12c and 12d; When the mode is changed in the interval between the vent mode and the bi-level mode, the opening area of the defrost vent (12a) comprises a plurality of temporary deep mode that is controlled in multiple stages,
And a mode door driving means for controlling the vent mode, the plurality of temporary deep mode, and the bilevel mode to be sequentially changed. The method of claim 1,
The mode door driving means,
The guide door 31 for the defrost door, the guide slot 32 for the face door, and the guide slot 33 for the floor door are formed at the edges so that the pattern door is formed by rotating or not rotating the mode door. Is formed and made of a mode door drive cam 30 is rotated around the center of rotation on the outer surface of the air conditioning case 10,
The guide slot 31 for the defrost door, the guide slot 32 for the face door, and the guide slot 33 for the floor door are the vent mode and the plurality of temporary deep mode when the mode door driving cam 30 is rotated. And the bilevel mode is sequentially formed in a pattern formed in the air conditioner of an automobile. The method of claim 2,
The defrost door guide slot 31, the face door guide slot 32, the floor door guide slot 33,
A floor mode for discharging air to the floor vents 12c and 12d by rotating or non-rotating the mode door after the air conditioning mode is changed to the bi-level mode; A mixing mode in which a part of the air is discharged to the defrost vents 12c and 12d and the other is discharged to the floor vents 12c and 12d; A pattern is further formed in which a deep mode for discharging air only to the defrost vent 12a is implemented.
And the bilevel mode, the floor mode, the mixing mode, and the deep mode are controlled to be sequentially changed by the mode door driving means. The method according to any one of claims 1 to 3,
The plurality of temporary deep mode, the air conditioning apparatus of the vehicle, characterized in that the opening area of the defrost vent (12a) is increased stepwise when the mode change from the vent mode to the bi-level mode. The method according to claim 2 or 3,
The defrost door guide slot 31,
When the mode is changed from the vent mode to the bi-level mode, the section between the vent mode position and the bi-level mode position is formed in a pattern in which the opening area of the defrost vent 12a increases stepwise. Conditioner. The method of claim 3, wherein
The defrost door guide slot 31,
And a pattern for rotating the defrost door (16) to open the defrost vent (12a) in the floor mode. The method of claim 3, wherein
One side 31a of the defrost door guide slot 31, one side 32a of the face door guide slot 32 furthest from the one side 31a of the defrost door guide slot 31, One side 33a of the floor door guide slot 33 furthest from the one side 32a of the face door guide slot 32a is a vent mode section;
The other side 31b of the defrost door guide slot 31, the other side 32b of the face door guide slot 32, and the other side 33b of the floor door guide slot 33 are in a deep mode. Interval;
Between one side 31a, 32a, 33a and the other side 31b, 32b, 33b of each of the defrost door guide slot 31, the face door guide slot 32, and the floor door guide slot 33, A plurality of temporary deep mode sections as books; Bi-level mode interval; Floor mode section; Air conditioning apparatus for a vehicle, characterized in that the mixing mode section. The method according to claim 2 or 3,
One side of the mode door driving cam 30, the pin portion 41 which is slidably inserted into each of the guide slot for the defrost door 31, the guide slot for the face door 32, the guide slot 33 for the floor door. The other side is coupled to the rotation shafts 16a, 17a, 18a of each of the defrost door 16, the face door 17 and the floor door 18, the rotation of the mode door drive cam 30 And an arm (40) for transmitting the defrost door (16), the face door (17), and the floor door (18) to be rotated or non-rotated according to the present invention.

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