KR20030089610A - Air conditioner for vehicle - Google Patents

Abstract

PURPOSE: An air conditioner for an automobile is provided to allow two-layer flow and to minimize the air conditioner by installing a temp door between the evaporator and the heater core, and installing a first partitioning door and a second partitioning doors to an inlet and an outlet of a second branched channel placed in a case so as to have the heater core to be placed between the first partitioning door and the second partitioning door, and selectively partition the second branched channel depending on flowing direction. CONSTITUTION: An air conditioner includes a case(11) having an inside air introducing port(12a) and an outside air introducing port(12b) formed on one side thereof, and a main channel(18) connected with the inside air introducing port and the outside air introducing port, and a first branched channel(19) and a second branched channel(20) extended from the main channel; an evaporator(1) installed on the main channel; a heater core(2) installed on the second branched channel; a temperature door(23) installed between the evaporator and the heater core in such a manner that the temperature door slides between the evaporator and the heater core, and selectively opening and closing the first branched channel and the second branched channel; and a first partitioning door(24) and a second partitioning door(25) installed on an inlet and an outlet of the second branched channel, respectively to have the heater core placed between the first partitioning door and the second partitioning door, and selectively partitioning the second branched channel depending on flowing direction.

Description

Air conditioner for vehicle

The present invention relates to a vehicle air conditioner, and more particularly, to a vehicle air conditioner having an improved structure to enable two-layer flow implementation and miniaturization.

In general, an automobile is provided with an air conditioning apparatus for heating or cooling the inside and outside air to enter or circulate the inside of the vehicle, thereby maintaining a proper indoor temperature and giving a passenger a comfortable ride. The air conditioner is provided with a case having a plurality of air passages inside, a blower installed at one side of the case to blow air into and out of the case, an evaporator for cooling the introduced air, and heating the air. It is basically provided with a heater core (heat core).

There are several types of air conditioners, among which are horizontal type air conditioners in which the evaporator and the heater core are arranged almost horizontally, respectively. In such an air conditioning apparatus, the air can smoothly pass through the evaporator and the heater core, thereby reducing the flow resistance of the air and reducing the noise. Recently, various air conditioners have been developed to meet the needs of consumers. As an example, hot bets that have been warmed through floor outlets in winter are recycled and supplied to the interior of the vehicle, and defrost outlets are provided. There is a two-layer flow type air conditioner so that low humidity outside air is supplied into the vehicle cabin, thereby improving heating capacity and preventing frost from occurring on the window glass.

By the way, in the conventional horizontal type air conditioner, this is a temp door provided between an evaporator and a heater core, and this flip is a flip door which requires a large working space by hinge-rotating one end to the inner wall of a case. A large space is required for the door to be mounted in the vehicle. In recent years, in order to efficiently use the space of the vehicle, the air conditioning apparatus mounted in the vehicle has been miniaturized, and for this purpose, the air conditioning apparatus needs to be miniaturized. In addition, a large driving force is required to drive the flip door.

The present invention is to solve the above problems, the sliding door is installed between the evaporator and the heater core slidably, and the first and second partition wall combined doors are installed at the inlet and the outlet of the second branch passage provided in the case, respectively. Accordingly, the second branch passage is selectively divided along the flow direction with the heater core interposed therebetween, so that an object of the present invention is to provide a vehicle air conditioner capable of realizing and miniaturizing two-layer flow.

1 is a cross-sectional view showing a vehicle air conditioner according to an embodiment of the present invention.

FIG. 2 is a partial perspective view showing a state in which a temporal door is installed in a case in FIG. 1; FIG.

3 to 5 are configuration diagrams showing a state in which the operation while changing the mode, the temperature, respectively.

<Brief description of the major symbols in the drawings>

Evaporator 2. Heater core

11..case 12a.

12b.Outdoor air inlet 13.Separation wall

18. Main passage 19. First quarter passage

20. 2nd branch passage 23. Temporary door

24 .. 1st partition wall door 25. 2nd partition wall door

27 .. Sub door 30. Driving means

Automotive air conditioning apparatus according to the present invention for achieving the above object,

A case in which internal and external air inlets are formed at one side, and main passages communicating with the internal and external air inlets, and first and second branch passages extending from the main passages;

An evaporator installed on the main passage;

A heater core installed on the second branch passage;

A temporal door slidably installed between the evaporator and the heater core to selectively open and close the first and second branch passages; And

It is provided at the inlet and the outlet of the second branch passage, respectively, the first and second partition wall combined door for selectively dividing the second branch passage in the flow direction with the heater core therebetween; do.

In addition, the first branch passage side outlet formed in the rear of the heater core is characterized in that the sub-door further opening and closing it.

In addition, the temporal door is hingedly coupled to one end of the rotating member provided on the drive shaft rotatably installed on the inner wall of the case.

In addition, the first and second partition wall door is characterized in that the rotation around the axis of the center of the door.

Further, the first partition wall is combined with the temporal door by an interlocking means to prevent interference when driving.

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

1 is a cross-sectional view of a vehicle air conditioner according to an embodiment of the present invention. Referring to the drawings, a vehicle air conditioner basically includes a case 11, an evaporator 1, and a heater core 2.

The lower side surface of the case 11 is provided with an internal air inlet 12a and an external air inlet 12b. The internal air inlet 12a and the external air inlet 12b are bounded by the separating wall 13 so that internal and external air can be separated and introduced into the case 11. After the internal and external air introduced from the side through the internal air inlet 12a and the external air inlet 12b are separated and introduced, the direction is changed to flow upward.

A vent outlet 14 is provided on the upper left side of the case 11 to supply the inside or outside air to the vehicle interior. The upper right side of the case 11 has a vent for removing the frost by supplying the inside or outside air in the direction of the glass window. A frost outlet 15 is formed. On the right side of the dip toast outlet 15, a floor outlet 16 for supplying internal or external air to the lower side of the vehicle compartment is formed. The floor outlet 16 is formed on the side of the case 11, thereby discharging the inside or outside air to the side. In addition, a discharge port 17 for discharging the condensed water generated by the evaporator 1 to be described later is formed at the lower right side of the case 11. That is, the condensed water generated by the evaporator 1 is collected on the inner lower surface of the case 11 and can be smoothly discharged through the outlet 17.

Meanwhile, a plurality of passages are provided in the case 11. That is, the main passage 18 communicating with the inside air inlet 12a and the outside air inlet 12b, and the first branch passage 19 and the second branch passage 20 extending from the main passage 18. Is formed, a defrost passage is formed in front of the defrost outlet 15, and a floor passage is formed in front of the floor outlet 16, respectively.

In addition, three outlets are provided at the rear of the heater core 2, and the three outlets communicate with the first branch passage-side outlet 27 communicating with the first branch passage 19 and the defrost passage. And a defrost passage side outlet 28, and a floor passage side outlet 29 in communication with the floor passage.

A blower (not shown) for forcibly supplying internal and external air is installed at the inside and outside air inlets 12a and 12b and flows in from the inside and outside air inlets 12a or 12b. The evaporator 1 and the heater core 2 are provided in order with respect to the flow direction of the air which was made up.

The evaporator 1 is used to heat exchange the air at a low temperature, and is provided over the main passage 18 in the case 11 so as to be inclined at a predetermined angle with respect to the flow direction of the air. More specifically, the left side of the evaporator 1 is provided so as to be lower than the right side. When the evaporator 1 is inclined at a predetermined angle as described above, the condensed water attached to the evaporator 1 can easily flow down, and the condensed water can be prevented from splashing. In addition, since the space between the evaporator 1 and the first branch passage 19 can be secured a lot, the air can be smoothly flown.

A heater core 2 is positioned above the evaporator 1, and the heater core 2 is used to heat-exchange the air at a high temperature, and crosses the second branch passage 20 in the case 11. It is installed over. When the heater core 2 is horizontally installed as described above, the air flowing into the heater core 2 can pass smoothly, and there is an advantage that space in the up and down direction can be saved. The first branch passage 19 located on the left side of the second branch passage 20 in which the heater core 2 is installed serves to allow air to be bypassed without passing through the heater core 2.

A temp door 23 is provided between the evaporator 1 and the heater core 2. The temporal door 23 is installed at the inlet side of the first and second branch passages 19 and 20 and slides on the first and second branch passages 19 and 20. Therefore, each inlet can be selectively opened or closed to control the flow direction of air.

The temporal door 23 is formed of a plate member, and as shown in FIG. 2, the temporal door 23 is coupled to and driven by the driving means 30.

Protruding portions 23a are formed on both side surfaces of the temporal door 23, and guides are formed on both inner surfaces of the case 11 to correspond to movement trajectories of the protruding portions 23a according to the rotation of the driving means 30. The groove 33 is formed. That is, the protrusion 23a of the temporal door 23 may be inserted and guided into the guide groove 33 formed as described above.

The drive means 30 has a drive shaft 31 and a rotating member 32 integrally formed from the side surface of the drive shaft 31. The rotating member 32 is bent at a predetermined angle, the free end is preferably hinged to the coupling portion 23b formed on the upper side of the temp door 23. An arm 34 is coupled to one end of the drive shaft 31, and the other end is inserted into an inner wall of the case 11. The arm 34 is located outside the case 11, and a cable, not shown, is connected to an end thereof to rotate the drive shaft 31 by the cable. It is not limited to this, It can also rotate a drive shaft by an electric actuator. As described above, the temporal door 23 may be coupled to the driving means 30, so that the temporal door 23 may be slidably transversely on the first and second branch passages 19 and 20.

Under the said temporal door 23, the 1st partition wall combined door 24 is provided. The said 1st partition wall combined door 24 is a plate-shaped member, The rotation shaft is formed in the center of both sides, respectively. In addition, the first partition wall combined door 24 is preferably interlocked with the temporal door 23 by the interlocking means.

The interlocking means is coupled to the pivot shaft of the first partitioning wall combined door 24 and is a member such as an arm 34 of the driving means 30, and an arm 34 of the member and the driving means 30. By including a link member for interconnecting between, the temporal door 23 and the first partition wall combined door 24 can be operated in conjunction. The interlocking means is not limited thereto, i.e., the actuator is installed in each of the temporal door 23 and the first partition wall combined door 24, and the actuators are interlocked, or the temporal door and the first partition wall using a cam member. Combined doors can be linked. By interlocking the temporal door 23 and the first partition wall combined door 24 by the interlocking means, it is advantageous to prevent the mutual interference from occurring.

That is, when the temporal door 23 completely blocks the second branch passage 20, the first partition wall combined door 24 is positioned side by side, and the temporal door 23 is the first branch. As it slides to block the passage 19, the first partition wall combined door 24 is rotated so that the temporal door toward the first branch passage 19 where one end of the first partition wall combined door 24 is open. It can be pulled in without interfering with (23).

When the first separating wall combined door 24 rotates in a horizontal state and is finally rotated, one end thereof extends from the separating wall 13 between the inside air inlet 12a and the outside air inlet 12b. The other end is positioned to correspond approximately to the center of the heater core 2. Therefore, the internal air introduced from the internal air inlet 12a and the external air introduced from the external air inlet 12b are heated through the heater core 2 in a separated state, respectively. In addition, the heated internal and external air may be introduced into the defrost passage side outlet 28 and the floor passage side outlet 29, respectively, in a state separated by the second dividing wall combined door 25 to be described later. Low humidity outdoor air may be supplied through the outlet 15, and high temperature internal air may be supplied through the floor outlet 16.

The defrost passage side outlet 28 and the floor passage side outlet 29 are provided with a second dividing wall combined door 25. Similar to the first partition wall combined door 24, the second partition wall combined door 25 has a rotation shaft formed at the center of both sides to selectively select the defrost passage side outlet 28 and the floor passage side outlet 29. It is preferable to open and close the

The second dividing wall combined door 25 separates internal and external air only when operating in a two-layer flow only, and is closed during other operations so that air passing through the heater core 2 exits the first branch passage side. To be discharged to (27).

On the other hand, a sub door 26 is provided at the first branch passage side outlet 27. The sub door 26 may be interlocked with the temp door 23 in the same manner as the interlocking means described above. When the temporal door 23 is in a position to completely block the second branch passage 20, the sub door 26 is placed in a position to completely block the first branch passage side outlet 27, and the temp When the door 23 is in a position to fully open the second branch passage 30, the door 23 is in a position to fully open the first branch passage side outlet 27.

The vent door 21 is provided on the vent outlet 14 side, and the defrost door 22 is provided on the defrost outlet 15 side. The vent door 21 opens or closes the vent outlet 14, or supplies or blocks air introduced into the defrost outlet 15 and the floor outlet 16. In addition, the defrost door 22 opens or closes the defrost outlet 15, or supplies or blocks air introduced into the floor outlet 16.

Referring to Figures 3 to 5 the operation of the automotive air conditioner according to an embodiment of the present invention having the configuration as described above are as follows.

In the present air conditioner, there are several modes of operation, only representative ones will be described. In addition, the arrow shows the flow direction of air in a figure.

3 is a heating, floor mode, in which adjustment of the actuation switches on the control panel of the vehicle, the temporal door 23 is positioned to completely block the first branch passage 19 bypassing the heater core 2. And at the same time positioned to fully open the second branch passage 20. One end of the first separating wall combined door 24 is located at a point extending from the separating wall 13 which divides the inside air inlet 12a and the outside air inlet 12b, and the other end is approximately the heater core 2. Is located in the center of the. The second dividing wall combined door 25 is placed at a position to open the defrost passage side outlet 28 and the floor passage side outlet 29, and one end thereof is the other of the first dividing wall combined door 24. By being located to correspond to the point extending from the end, the internal and external air can continue to flow in a separate state. The sub door 26 is placed at a position to completely open the first branch passage side outlet 27. In addition, the defrost door 22 is placed at a position that opens the defrost outlet 15 and at the same time completely blocks the floor outlet 16.

In the adjusted state, the second branch passages opened in the state in which the inside air and the outside air introduced into the inside air inlet 12a and the outside air inlet 12b are separated by the first partition wall combined door 24, respectively. Inflow to the heater core 2 through the (20). The outside air introduced into the heater core 2 is heated by the heater core 2 to be in a low humidity state, and is distributed to the first branch passage side outlet 27 and the defrost passage side outlet 28, respectively, Discharged through the frost outlet 28. On the other hand, the bet introduced into the heater core 2 is heated by the heater core 2 to become a high temperature state, and is guided by the second partition wall combined door 25 to pass through the floor passage side outlet 29 and then the floor. Discharged through the outlet 16. Therefore, by supplying low-humidity outside air through the defrost outlet 15, it is possible to prevent defrost from occurring on the window glass, and by supplying high-temperature bet through the floor outlet 16, two-layer flow air conditioning is realized.

4 is a cooling and venting mode, in which the operation switches on the operation panel of the vehicle are adjusted for this purpose. It is positioned to completely open the first branch passage 19 bypassing the second branch passage 20 at the same time. The first partition wall combined door 24 is positioned in parallel with the temporal door 23. The second dividing wall combined door 25 is placed at a position that completely blocks the defrost passage side outlet 28 and the floor passage side outlet 29. The sub door 26 is placed at a position that completely blocks the first branch passage side outlet 27. The vent door 21 is positioned to fully open the vent outlet 14 and is positioned at a position that completely blocks the passage that flows into the defrost outlet 15 and the floor outlet 16. Then, the evaporator 1 is operated for indoor cooling.

In this adjusted state, the inside and outside air introduced into the inside air inlet 12a and the outside air inlet 12b are cooled through the evaporator 1, and the first branch passage opened by the temporal door 23. By passing through (19), and is supplied to the room through the vent outlet 14, which is mixed and opened while continuing to flow, interior cooling can be achieved.

FIG. 5 is a heating, bi-level mode, in which adjustment of the actuation switches on the control panel of the vehicle allows the temporal door 23 to partially open across the first and second branch passages 19 and 20. Is located. Accordingly, one end of the first separating wall combined door 24 is positioned to allow the internal and external air introduced from the internal air inlet 12a and the external air inlet 12b to flow into the second branch passage 20. The two dividing wall combined door 25 is placed at a position for opening the outlet passage side outlet 28 and the floor passage side outlet 29 so that the internal and external air can flow together. The sub door 26 is placed at a position to partially open the first branch passage side outlet 27. In addition, the vent outlet 14 is placed in an open neutral position, that is, a position that opens the vent outlet 14 and simultaneously opens a passage which flows into the defrost outlet 15 and the floor outlet 16 side. The defrost door 22 is positioned to block the defrost outlet 15 while allowing air to enter the floor outlet 16.

In this adjusted state, the internal and external air introduced into the internal air inlet 12a and the external air inlet 12b are distributed and introduced into the open first and second branch passages 19 and 20, respectively. The internal and external air passing through the opened first branch passage 19 is distributed by the vent door 21, part of which is discharged through the vent outlet 14, and the rest flows to the floor outlet 16. Meanwhile, the internal and external air introduced into the heater core 2 through the open second branch passage 20 are heated by the heater core 2 to become a high temperature state, and the first branch passage side outlet 27 opened. The floor outlet 16 is passed through the defrost passage side outlet 28 and the floor passage side outlet 29, respectively, and flows to the floor outlet 16 through the first branch passage 19. Discharged through. Accordingly, the temperature of the air supplied through the vent outlet 14 and the floor outlet 16 is different, so that hot air is supplied downward of the occupant and lower air is supplied upward of the occupant. Can be.

As described above, the automotive air conditioner according to the present invention can be miniaturized by having a slidable temporal door installed between the evaporator and the heater core, thereby easily mounting the miniaturized air conditioner to the vehicle. It can work.

In addition, the first and second partition wall combined doors are provided at the inlet and the outlet of the second branch passage provided in the case so that the second branch passage can be selectively divided along the flow direction with the heater core interposed therebetween. Implementation of flow conditioning may be possible.

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Could be. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (6)

A case in which internal and external air inlets are formed at one side, and main passages communicating with the internal and external air inlets, and first and second branch passages extending from the main passages; An evaporator installed on the main passage; A heater core installed on the second branch passage; A temporal door slidably installed between the evaporator and the heater core to selectively open and close the first and second branch passages; And It is provided at the inlet and the outlet of the second branch passage, respectively, the first and second partition wall combined door for selectively dividing the second branch passage in the flow direction with the heater core therebetween; Automotive air conditioning system. The method of claim 1, The first branch passage side outlet formed in the rear of the heater core, the air conditioner for the vehicle, characterized in that further installed to open and close it. The method of claim 1, And the temporal door is hingedly coupled to one end of a rotation member provided on a drive shaft rotatably installed on an inner wall of the case. The method of claim 1, The first and second partition wall combined door is a vehicle air conditioner, characterized in that rotated about the axis of the center of the door. The method of claim 1, And the first partition wall combined door is interlocked with the temporal door by an interlocking means to prevent interference during driving. The method of claim 1, And the evaporator and the heater core are installed substantially horizontally in the case.