JP2012240481A - Air conditioning device for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioning device for an automobile, capable of preventing temperature rise of cold air and miniaturizing an air conditioning case.SOLUTION: The air conditioning device 1 for an automobile includes: the air conditioning case 10 where blowoff ports 20 (a defroster blowoff port DEF, a vent blowoff port VENT, and a foot blowoff port FOOT) are formed; an evaporator 60, disposed inside the air conditioning case 10, for generating cold air by cooling air; and a heater core 70, disposed downstream of the evaporator 60 in an air flowing direction, for generating hot air by heating the air that has passed through the evaporator 60. The air conditioning device 1 for an automobile further includes: a first mix door 100 for distributing the cold air that has passed through the evaporator 60 to the side of the blowoff ports 20 and the side of the heater core; and a second mix door 200, linked with the first mix door 100, for guiding the cold air that has passed through the evaporator 60 to the side of the blowoff ports 20 without making the cold air pass through the heater core 70.

Description

  The present invention relates to an automotive air conditioner in which an evaporator and a heater core are provided in an air conditioning case.

  Conventionally, an evaporator for generating cold air and hot air are provided in an air-conditioning case in which an air outlet (a def outlet, a vent outlet, and a foot outlet) for blowing air introduced into the vehicle interior is formed. Various proposals have been made for an air conditioner for an automobile in which a heater core to be generated is disposed.

  For example, an automotive air conditioner in which an air mix door that distributes cold air and hot air and a rotary rotary door provided in a confluence region of cold air and hot air are overlapped (for example, Patent Document 1). According to this automobile air conditioner, it is possible to improve the air mixing performance of cold air and hot air.

Japanese Unexamined Patent Publication No. 2009-6857 (pages 2 to 4 and FIGS. 1 to 6)

  However, in the conventional automotive air conditioner described above, it is necessary to dispose the cold air passage through which the cold air passes and the heater core as far as possible in order to prevent the temperature of the cold air from rising. For this reason, there is still room for improvement in the downsizing of the air conditioning case.

  Therefore, an object of the present invention is to provide an automotive air conditioner that can prevent the temperature of cold air from rising and can reduce the size of an air conditioning case.

  In order to solve the above-described problems, the present invention has the following features. First, the first feature of the present invention is that an air conditioning case (air conditioning case 10) in which an air outlet (air outlet 20) for blowing air introduced into the vehicle interior is formed, and the air conditioning case is disposed in the air conditioning case. An evaporator (evaporator 60) that generates cold air by cooling the air, and is disposed downstream of the evaporator in the air flow direction and heats the air that has passed through the evaporator An automotive air conditioner (automobile air conditioner 1) including a heater core (heater core 70) that generates hot air, and distributes the cold air that has passed through the evaporator to the air outlet side and the heater core side. The mixed air (first mixed door 100) and the cold air that has passed through the evaporator in conjunction with the first mixed door Without passing the A further summarized in that and a second mix door leading to the outlet side (second mixing door 200).

  According to this feature, the second mix door is linked to the first mix door and guides the cool air that has passed through the evaporator to the outlet side without passing through the heater core. As a result, it is possible to suppress a heat pickup phenomenon in which the cool air that has passed through the evaporator draws warm air (warm air) retained around the heater core, and the temperature of the cool air can be prevented from rising.

  In addition, since the temperature rise of the cold air can be prevented, the cold air passage through which the cold air passes and the hot air passage through which the hot air passes (that is, the evaporator and the heater core) can be disposed as close as possible. Accordingly, it is possible to reduce the size of the air conditioning case.

  By the way, in the case of a vertical automobile air conditioner, depending on the shape of the automobile air conditioner, it is difficult to share the automobile air conditioner for the right handle and the left handle in order to ensure sufficient space for the passengers. That is, the automobile air conditioner has to be offset in either the right handle or the left handle and mounted in the vehicle interior (inner panel).

  However, according to the first feature of the present invention, the cold air passage through which the cold air passes and the hot air passage through which the hot air passes (that is, the evaporator and the heater core) are arranged as close as possible (for example, the heater core is made higher). It is possible to secure sufficient foot space for the occupant. For this reason, it is not necessary to offset the air conditioner for automobiles to be arranged in either the right handle or the left handle and mount it in the vehicle interior, and it can be shared for both the right handle and the left handle.

  A second feature of the present invention is related to the first feature of the present invention, wherein the first mix door closes the cold air passage (cold air passage 32) through which the cold air passes and all the cold air is on the heater core side. A cold air-side mix door (cold air-side mix door 110) that rotates between a fully-closed position to be introduced into the door and a fully-open position in which the cold air passage is opened and all the cold air is guided to the air outlet side, and the cold air side When the mix door is in the fully closed position, the hot air passage (the hot air passage 33) through which the hot air passes is opened to fully open the cold air to the heater core side, and the cold air side mix door includes the When in the fully open position, the warm air passage is closed and the warm air side mix door (the warm air side mix door 120) that rotates between the fully closed position that guides all the cool air to the outlet side is configured. The The second mix door closes the hot air passage when the cold air side mix door is in the fully open position, and opens the hot air passage when the cold air side mix door is in the fully closed position. The gist is to do.

  According to this feature, the second mix door closes the hot air passage when the cold air side mix door is in the fully open position, and opens the hot air passage when the cold air side mix door is in the fully closed position. As a result, in the air mixing region where the cold air passing through the cold air passage and the hot air passing through the hot air passage are mixed, the cold air and the hot air can be reliably mixed (mixed air can be generated). Can be improved.

  A third feature of the present invention relates to the second feature of the present invention, wherein the cold air side mixed door includes a first door body (first door body 111) capable of opening and closing a cold air passage through which the cold air passes, The second support door is arranged at a position parallel to the first door body via a predetermined gap. The rotation support shaft (turning support shaft 112) rotates the first door body. The gist is that the second door main body (second door main body 210) is configured.

  According to such a feature, the second mix door is constituted by the second door body disposed in a parallel position with the first door body through a predetermined gap. As a result, the second door main body rotates in conjunction with the rotation of the first door main body, and the cold air and the hot air are easily mixed in the air mixing region.

  A fourth feature of the present invention is according to the third feature of the present invention, wherein the second door body has a plurality of passage ducts (passage ducts 211) through which the warm air that has passed through the heater core passes. The gist is to mix the cold air passing between the first door main body and the second door main body and the hot air passing through the passage duct.

  According to this feature, the second door body has a plurality of passage ducts through which the warm air that has passed through the heater core passes. This further facilitates mixing of the cool air and the warm air in the air mixing region.

  A fifth feature of the present invention relates to the second to fourth features of the present invention, wherein the second mix door is formed integrally with the cold air side mix door, and the cold air side mix door is rotated. The gist is to rotate in conjunction.

  According to this feature, the second mix door is formed integrally with the cold air side mix door. Accordingly, the second mix door is easily rotated in conjunction with the rotation of the cold air side mix door, and the cold air and the hot air are further easily mixed in the air mixing region.

  According to the features of the present invention, it is possible to provide an automotive air conditioner that can prevent the temperature of cold air from rising and can reduce the size of the air conditioning case.

FIG. 1 is a longitudinal side view showing a cold air mode of an automotive air conditioner 1 according to the first embodiment. FIG. 2 is a longitudinal side view showing a warm air mode of the automotive air conditioner 1 according to the first embodiment. FIG. 3 is a longitudinal side view showing the mixed air mode of the automotive air conditioner 1 according to the first embodiment. FIG. 4 is a perspective view showing a part of the first mix door 100 and the second mix door 200 according to the first embodiment. FIG. 5 is a perspective view showing a part of the first mix door 100 and the second mix door 200 according to a modified example of the first embodiment. FIG. 6 is a longitudinal side view showing a cold air mode of the automotive air conditioner 2 according to the second embodiment. FIG. 7 is a longitudinal side view showing a warm air mode of the automotive air conditioner 2 according to the second embodiment. FIG. 8 is a longitudinal side view showing the mixed air mode of the automotive air conditioner 2 according to the second embodiment. FIG. 9 is a perspective view showing a part of the first mix door 100 and the second mix door 200 according to the second embodiment.

  Next, an embodiment of an automotive air conditioner according to the present invention will be described with reference to the drawings. Specifically, (1) the first embodiment, (2) the second embodiment, and (3) other embodiments will be described.

  In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions and the like are different from actual ones.

  Accordingly, specific dimensions and the like should be determined in consideration of the following description. Moreover, the part from which the relationship and ratio of a mutual dimension differ also in between drawings may be contained.

(1) 1st Embodiment (1.1) Structure of automotive air conditioner 1 First, the structure of the automotive air conditioner 1 which concerns on this embodiment is demonstrated, referring drawings. FIG. 1 is a longitudinal side view showing a cold air mode of an automotive air conditioner 1 according to the first embodiment. FIG. 2 is a longitudinal side view showing a warm air mode of the automotive air conditioner 1 according to the first embodiment. FIG. 3 is a longitudinal side view showing the mixed air mode of the automotive air conditioner 1 according to the first embodiment.

  As shown in FIGS. 1 to 3, the automotive air conditioner 1 includes an air conditioning case 10 made of synthetic resin or the like. In the air conditioning case 10, an air passage 30 (an introduction passage 31, a cold air passage 32, a warm air passage, etc.) is appropriately divided by an outlet 20 that blows out air introduced into the vehicle interior and an image wall 11 or the like. Air passage 33 and the like) are formed.

  The air outlet 20 includes a differential air outlet DEF, a vent air outlet VENT, and a foot air outlet FOOT. On the other hand, an air blowing component (blower 40, introduction passage 31) is provided at an upstream position of the air passage 30. In addition, functional parts (filter 50, evaporator 60, heater core 70, etc.) are provided in the middle of the air passage 30.

  The blower 40 introduces air into the air conditioning case 10. The air discharged from the blower 40 is purified by passing through a filter 50 provided in the introduction passage 31. An evaporator 60 constituting a part of the refrigeration cycle is provided at the subsequent stage (downstream side) of the filter 50.

  The evaporator 60 generates cool air by exchanging heat between the air and the refrigerant to cool the air. The evaporator 60 and the above-described filter 50 are juxtaposed in the vertical direction at the lower position of the blower 40, and the inclined vertical direction in which the upper side is slightly shifted from the vertical position to the downstream side and the lower side is slightly shifted to the upstream side. Is set to By setting the inclination in the vertical direction, air passing through the introduction passage 31 can be easily taken in, and a marginal space can be formed in the lower portion of the evaporator 60.

  A cool air passage 32 through which the cool air generated by passing through the evaporator 60 passes is provided on the upper side of the drawing wall 11 in the downstream side of the evaporator 60. In the cold air passage 32, a first mix door 100 (cold air side mix door 110) and a second mix door 200 are disposed.

  On the other hand, a warm air passage 33 through which the warm air generated by passing through the heater core 70 passes is provided below the painting wall 11 on the downstream side of the evaporator 60. In the warm air passage 33, the first mix door 100 (the warm air side mix door 120) and the heater core 70 are arranged in this order. The details of the first mix door 100 and the second mix door 200 will be described later.

  The heater core 70 is disposed downstream of the evaporator 60 in the air flow direction, and generates warm air by heating the air (cold air) that has passed through the evaporator 60. The heater core 70 is provided with a pipe 72 connected to an engine, a radiator, or the like. In addition, the heater core 70 is supported at one end by the wall 11 and is set in the inclined vertical direction in the same manner as the filter 50 and the evaporator 60. By setting the inclination in the vertical direction, air passing through the hot air passage 33 can be easily taken in, and a marginal space can be formed in the lower portion of the heater core 70. Further, the heater core 70 is disposed so as to take in air that has entered the bottom inner surface of the air conditioning case 10 from below. Thereby, the warm air passage 33 also becomes a passage through which the warm air flows from the bottom to the top.

(1.2) Configurations of First Mix Door 100 and Second Mix Door 200 Next, the configurations of the first mix door 100 and the second mix door 200 described above will be described with reference to FIGS. While explaining. FIG. 4 is a perspective view showing a part of the first mix door 100 and the second mix door 200 according to the first embodiment.

  The first mix door 100 and the second mix door 200 adjust properties (cold air and hot air distribution ratio) such as air temperature. The adjusted air is supplied to the air outlets 20 (the differential air outlet DEF, the vent air outlet VENT, and the foot air outlet FOOT) depending on the opening / closing positions of the differential door 21, the vent door 22, and the foot door 23. It blows out from the outlet 20.

(1.2.1) First mix door 100
As shown in FIGS. 1-4, the 1st mix door 100 distributes the cold wind produced | generated through the evaporator 60 to the blower outlet 20 side and the heater core 70 side. The first mix door 100 includes a cold air side mix door 110 and a hot air side mix door 120.

  The cold air side mix door 110 is disposed in the cold air passage 32. The cold air side mix door 110 is in a fully closed position (see FIG. 2) where the cold air passage 32 is closed and all the cold air is introduced to the heater core 70 side, and is fully closed where the cold air passage 32 is opened and all the cold air is guided to the outlet. It rotates between positions (see FIG. 1). Specifically, as shown in FIG. 4, the cold air side mixed door 110 includes a plate-like first door main body 111 that can open and close the cold air passage 32, and a rotation support shaft 112 that rotates the first door main body 111. It is comprised by. The first door body 111 is formed integrally with the second mix door 200 via the rotation support shaft 112.

  On the other hand, the hot air side mix door 120 is disposed in the hot air passage 33. When the cold air side mix door 110 is in the fully closed position, the hot air side mix door 120 has a fully open position (see FIG. 2) that opens the hot air passage 33 and guides all the cold air to the heater core 70 side. When the door 110 is in the fully open position, the hot air passage 33 is closed, and the door 110 is rotated between the fully closed position (see FIG. 1) that guides all the cool air toward the outlet.

  The first mix door 100 (the cold air side mix door 110 and the hot air side mix door 120) is interlocked with the second mix door 200.

(1.2.2) Configuration of Second Mix Door 200 As shown in FIGS. 1 to 4, the second mix door 200 is coupled with the first mix door 100, and cool air that has passed through the evaporator 60 is generated. Without passing through the heater core 70, the air is guided to the outlet 20 (the differential outlet DEF, the vent outlet VENT, and the foot outlet FOOT).

  When the cold air side mix door 110 is in the fully open position (see FIG. 1), the second mix door 200 closes the hot air passage 33 and the cold air side mix door 110 is in the fully closed position (see FIG. 2). When the hot air passage 33 is opened. In other words, the second mix door 200 covers the surface 71 on the outlet 20 side of the heater core 70 when the cold air side mix door 110 is in the fully open position, and when the cold air side mix door 110 is in the fully closed position, The surface 71 on the air outlet 20 side of the heater core 70 is opened.

  The second mix door 200 is formed integrally with the cold air side mix door 110 and rotates in conjunction with the rotation of the cold air side mix door 110 via the rotation support shaft 112. The second mix door 200 includes a plate-like second door main body 210 disposed in a parallel position with the first door main body 111 through a predetermined gap, a second door main body 210, and a rotation support shaft 112. And a connecting portion 220 for connecting the two.

(1.3) Movement of the first mix door 100 and the second mix door 200 In the cold air mode (full cool mode), as shown in FIG. 1, the cold air side mix door 110 is in the fully open position and the hot air side mix door is opened. When 120 is in the fully closed position, air does not flow into the hot air passage 33 but flows only through the cold air passage 32. At this time, the second mix door 200 (second door main body 210) closes the hot air passage 33.

  On the contrary, in the warm air mode (full hot mode), as shown in FIG. 2, when the cool air side mix door 110 is in the fully closed position and the warm air side mix door 120 is in the fully open position, the air enters the cool air passage 32. It flows only through the warm air passage 33 without flowing. At this time, the second mix door 200 (second door main body 210) opens the hot air passage 33.

  In the mixed air mode (intermediate mode between full cool and full hot), as shown in FIG. 3, the second mix door 200 (second door main body 210) when the cold air side mix door 110 is in the midway position. Is also halfway. Thereby, the cold air that has passed through the cold air passage 32 and the hot air that has passed through the hot air passage 33 are mixed between the first door main body 111 and the second door main body 210 (mixed air is generated), and the air A mixing area AM is formed.

  Thereafter, the temperature-adjusted air is blown out from the respective outlets (the vent door 22, the vent outlet VENT and the foot outlet FOOT). The selection of the outlet 20 is controlled by opening / closing the differential door 21, the vent door 22, and the foot door 23. In addition, about the selection control (= mode selection control) of this blower outlet 20, it is well-known (for example, Unexamined-Japanese-Patent No. 2009-6857).

(1.4) Actions / Effects In the first embodiment described above, the second mix door 200 is interlocked with the first mix door 100 without passing the cool air that has passed through the evaporator 60 to the heater core 70. It leads to the outlet 20 (vent door 22, vent outlet VENT and foot outlet FOOT) side. As a result, it is possible to suppress the heat pickup phenomenon in which the cold air that has passed through the evaporator 60 draws in warm air (in the line A in FIG. 1) that is stopped around the heater core 70, and the temperature of the cold air can be prevented from rising.

  In addition, since the temperature rise of the cold air can be prevented, the cold air passage 32 and the hot air passage 33 (that is, the evaporator 60 and the heater core 70) can be disposed as close as possible. Therefore, the air conditioning case 10 can be downsized.

  By the way, in the case of a vertical automobile air conditioner, depending on the shape of the automobile air conditioner, it is difficult to share the automobile air conditioner for the right handle and the left handle in order to ensure sufficient space for the passengers. That is, the automobile air conditioner has to be offset in either the right handle or the left handle and mounted in the vehicle interior (inner panel).

  However, according to the first embodiment, the cold air passage 32 and the hot air passage 33 (that is, the evaporator 60 and the heater core 70) can be disposed as close as possible (for example, the heater core 70 can be disposed high). As a result, a sufficient space for passengers can be secured. For this reason, it is not necessary to offset the vehicle air conditioner 1 to be disposed in either the right handle or the left handle and install it in the vehicle interior, and it can be shared for both the right handle and the left handle.

  In the first embodiment, the second mix door 200 closes the hot air passage 33 when the cold air side mix door 110 is in the fully open position, and hot air passage when the cold air side mix door 110 is in the fully closed position. 33 is released. Thereby, in the air mixing area AM where the cold air passing through the cold air passage 32 and the hot air passing through the hot air passage 33 are mixed, the cold air and the hot air can be reliably mixed (mixed air can be generated). Mixing property can be improved.

  In the first embodiment, the second mix door 200 is constituted by a first door body 111 and a second door body 210 disposed at a parallel position with a predetermined gap. As a result, the second door main body 210 rotates in conjunction with the rotation of the first door main body 111, and the cold air and the hot air are easily mixed in the air mixing area AM.

  In the first embodiment, the second mix door 200 is formed integrally with the cold air side mix door 110. Accordingly, the second mix door 200 is easily rotated in conjunction with the rotation of the cold air side mix door 110, and the cold air and the hot air are further easily mixed in the air mixing area AM.

(1.5) Modified Example Next, a modified example of the automotive air conditioner 1 according to the first embodiment described above will be described with reference to the drawings. FIG. 5 is a perspective view showing a part of the first mix door 100 and the second mix door 200 according to a modified example of the first embodiment. In addition, the same code | symbol is attached | subjected to the same part as the automotive air conditioner 1 which concerns on 1st Embodiment mentioned above, and a different part is mainly demonstrated.

  In the first embodiment described above, the second door main body 210 is formed integrally with the first door main body 111 (the rotation support shaft 112) via the connecting portion 220. On the other hand, in the modified example, the second door main body 210 is formed separately from the first door main body 111.

  Specifically, as shown in FIG. 5, the second mix door 200 includes a second door main body 210 disposed in parallel with the first door main body 111 through a predetermined gap, and a second door main body. It is comprised by the rotation support shaft 230 which rotates 210. FIG. Even in this case, the second mix door 200 (second door main body 210) rotates in conjunction with the rotation of the first mix door 100 (first door main body 111).

  According to such a modified example, even if the second door main body 210 is formed separately from the first door main body 111, it is possible to prevent an increase in the temperature of the cold air, similarly to the operation and effect of the first embodiment. In addition, the air conditioning case 10 can be downsized.

(2) Second Embodiment Hereinafter, an automotive air conditioner 2 according to a second embodiment will be described with reference to the drawings. FIG. 6 is a longitudinal side view showing a cold air mode of the automotive air conditioner 2 according to the second embodiment. FIG. 7 is a longitudinal side view showing a warm air mode of the automotive air conditioner 2 according to the second embodiment. FIG. 8 is a longitudinal side view showing the mixed air mode of the automotive air conditioner 2 according to the second embodiment. FIG. 9 is a perspective view showing a part of the first mix door 100 and the second mix door 200 according to the second embodiment. In addition, the same code | symbol is attached | subjected to the same part as the automotive air conditioner 1 which concerns on 1st Embodiment mentioned above, and a different part is mainly demonstrated.

  In the first embodiment described above, the second door body 210 is formed in a plate shape. On the other hand, in 2nd Embodiment, the 2nd door main body 210 becomes the following structures.

(2.1) Configuration of Second Door Main Body 210 As shown in FIGS. 6 to 9, the second door main body 210 passes through the bottom inner surface of the air conditioning case 10 and passes a plurality of hot air passing through the heater core 70 ( Three passage ducts 211 are shown in the drawing. The passage duct 211 has a shape protruding toward the first door body 111 side. The passage duct 211 is formed so that the spatial volume gradually increases toward the downstream side in the air flow direction.

  Further, the second door main body 210 mixes the cold air passing between the first door main body 111 and the second door main body 210 and the hot air passing through the passage duct 211. That is, the cold air that has passed through the cold air passage 32 and the hot air that has passed through the hot air passage 33 are mixed between the first door main body 111 and the second door main body 210 to form the air mixing region AM.

(2.2) Movement of first mix door 100 and second mix door 200 In the cold air mode, as shown in FIG. 6, the cold air side mix door 110 is in the fully open position and the hot air side mix door 120 is in the fully closed position. The air does not flow through the hot air passage 33 but only through the cold air passage 32. At this time, the second mix door 200 (second door main body 210) substantially closes the hot air passage 33.

  Conversely, in the warm air mode, as shown in FIG. 7, when the cool air side mix door 110 is in the fully closed position and the warm air side mix door 120 is in the fully open position, air does not flow into the cool air passage 32, It flows only through the passage 33. At this time, the second mix door 200 (second door main body 210) opens the hot air passage 33.

  In the mixed air mode, as shown in FIG. 8, when the cold air side mix door 110 is in the midway position, the second mix door 200 (second door body 210) is also in the midway position. Thereby, the cool air passing between the first door main body 111 and the second door main body 210 and the hot air passing through the passage duct 211 are mixed between the first door main body 111 and the second door main body 210. The above-described air mixing area AM is formed.

(2.3) Action / Effect In the second embodiment described above, even if the second door main body 210 has the passage duct 211, the temperature of the cold air is increased as in the action / effect of the first embodiment. While being able to prevent, size reduction of the air-conditioning case 10 is realizable.

  Specifically, in the second embodiment, the second door main body 210 has a plurality of passage ducts 211 through which the warm air that has passed through the heater core 70 passes. Thereby, it becomes easy to mix cold air and warm air in the air mixing area AM.

  Here, in the second embodiment, the second door main body 210 is formed integrally with the first door main body 111 via the rotation support shaft 112. However, the present invention is not limited to this. Of course, the first door body 111 and the first door body 111 may be formed separately from each other as described in the modification of the form.

(3) Other Embodiments As described above, the contents of the present invention have been disclosed through the embodiments of the present invention. However, it is understood that the description and drawings constituting a part of this disclosure limit the present invention. Should not. From this disclosure, various alternative embodiments, examples, and operational techniques will be apparent to those skilled in the art.

  For example, the embodiment of the present invention can be modified as follows. Specifically, the second mixed door has been described as being provided in a parallel position with the first door main body 111 via a predetermined gap, but the present invention is not limited to this, and the first door main body 111 includes It may be provided at a slightly inclined position. That is, the first door main body 111 only needs to block the cold air passage and the second door main body 210 closes the hot air passage, and can be appropriately set according to the shape of the air conditioning case 10 (air passage).

  As described above, the present invention naturally includes various embodiments that are not described herein. Therefore, the technical scope of the present invention is determined only by the invention specifying matters according to the scope of claims reasonable from the above description.

DESCRIPTION OF SYMBOLS 1, 2 ... Automotive air conditioner 10 ... Air conditioning case 11 ... Painting wall 20 ... Outlet DEF ... Differential outlet FOOT ... Foot outlet VENT ... Vent outlet 21 ... Differential door 22 ... Vent door 23 ... Foot door 30 ... Air passage 31 ... Introduction passage 32 ... Cool air passage 33 ... Hot air passage 40 ... Blower 50 ... Filter 60 ... Evaporator 70 ... Heater core 100 ... First mix door 110 ... Cool air side mix door 111 ... First door body 112 ... Rotating support shaft 120 ... Hot air side mixed door 200 ... second mixed door 210 ... second door main body 211 ... passing duct 220 ... connecting portion 230 ... rotating spindle

Claims (5)

An air conditioning case in which an air outlet is formed to blow out the air introduced into the vehicle interior;
An evaporator disposed in the air conditioning case and generating cold air by cooling the air;
An automotive air conditioner comprising: a heater core that is disposed downstream of the evaporator in the air flow direction and generates hot air by heating the air that has passed through the evaporator;
A first mix door that distributes the cold air that has passed through the evaporator to the outlet side and the heater core side;
An automotive air conditioner further comprising a second mix door that is linked to the first mix door and guides the cold air that has passed through the evaporator to the outlet without passing through the heater core. . The automotive air conditioner according to claim 1,
The first mix door is
Rotating between a fully closed position where all the cold air is introduced to the heater core side with the cold air passage through which the cold air passes closed, and a fully open position where all the cold air is directed to the outlet side with the cold air passage opened. A moving cold air side mix door,
When the cold air side mix door is in the fully closed position, the hot air passage through which the hot air passes is opened and the cold air side mix door is in the fully open position. When the warm air passage is closed, the warm air side mixed door that rotates between the fully closed position that guides all the cold air to the outlet side with the hot air passage closed,
The second mix door closes the hot air passage when the cold air side mix door is in the fully open position, and opens the hot air passage when the cold air side mix door is in the fully closed position. An automotive air conditioner. The automotive air conditioner according to claim 2,
The cold air side mix door is
A first door body capable of opening and closing a cold air passage through which the cold air passes;
A rotation support shaft for rotating the first door body,
The air conditioner for automobiles, wherein the second mix door is constituted by a second door body arranged in a parallel position with the first door body through a predetermined gap. An automotive air conditioner according to claim 3,
The second door body has a plurality of passage ducts through which the hot air that has passed through the heater core passes, and passes through the cold air and the passage duct that pass between the first door body and the second door body. An automotive air conditioner that mixes the warm air. An automotive air conditioner according to any one of claims 2 to 4,
The automotive air conditioner, wherein the second mix door is formed integrally with the cold air side mix door and rotates in conjunction with the rotation of the cold air side mix door.

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