JP2020175781A - Vehicular air conditioner - Google Patents

Abstract

To provide a vehicular air conditioner which can provide such an improved assembly property as to smoothly assemble a case to a blower guide.SOLUTION: A blower guide 22 is provided on an inner part of an air conditioner case 14 composed of first and second division cases 24, 26 and an intermediate case 28 which can be divided in a width direction, and a part as the width direction outer side thereof is housed so as to be protruded from first and second division parts 42 of the intermediate case 28 to the first and second division cases 24, 26 sides. Further, on the blower guide 22, first to third connection pieces 98, 100, 102 for connecting a pair of partition walls 96a, 96b are formed along a width direction, is formed so as to be brought into contact with first and second wall parts 36, 40 of the first and second division cases 24, 26, and intermediate wall part 32 of the intermediate case 28 and, at the same time, is provided with first to third guide parts 104, 106, 108 inclined to an end part as the first and second division cases 24, 26 side. Interference with the blowing guide 22 of the first and second wall parts 36a, 40a of the first and second division cases 24, 26 is avoided by the first to third guide parts 104, 106, 108.SELECTED DRAWING: Figure 2

Description

The present invention relates to a vehicle air conditioner that is mounted on a vehicle and whose temperature has been adjusted by a heat exchanger to be blown into a vehicle interior to adjust the temperature inside the vehicle interior.

Conventionally, a vehicle air conditioner mounted on a vehicle for adjusting the temperature inside the vehicle interior has been known. For example, in the vehicle air conditioner disclosed in Patent Document 1, air flows inside the air conditioner case. A grid member is provided in the flow path to control the air flow in order to suppress the temperature difference between the air blowing temperature blown from the defroster outlet and the air blowing temperature blown from the face outlet.

International Publication No. 2016/185779

The grid members of the vehicle air conditioner as described above are often arranged as blower guides in the air conditioner case over a width direction substantially orthogonal to the extending direction of the flow path. Therefore, for example, when the air conditioning case has a configuration that can be divided in the width direction, it is arranged so as to straddle the dividing surface between one case and the other case.

Therefore, the grid member attached to one case protrudes in the width direction toward the other case side with respect to the divided surface, and interferes with the grid member when assembling the other case to improve the assembling property. There is a problem that it decreases.

The present invention has been made in consideration of the above problems, and an object of the present invention is to provide an air conditioner for a vehicle capable of improving the assembling property by smoothly assembling the case to the blower guide. And.

In order to achieve the above object, the aspect of the present invention is a case having a wall portion inside which is divisible in the width direction and constitutes an air passage, and an arrangement so as to face the wall portion in the passage. In a vehicle air conditioner equipped with a blower guide
The case has a divided surface in which one divided case and the other case are connected and divided in the middle in the width direction of the passage.
The blower guide was fixed to one case and protruded from the dividing surface toward the other case side, and the end portion on the other case side was inclined toward the other case side toward the wall portion. It has a guide section.

According to the present invention, the case constituting the vehicle air conditioner is provided so as to be freely split in the width direction, and has a split surface in which one case and the other case are split. A blower guide is provided inside the aisle so as to face the wall portion constituting the passage, and the blower guide is fixed to one case and protrudes from the dividing surface to the other case side, and the end which becomes the other case side. The portion is provided with a guide portion that is inclined toward the other case side in a direction away from the wall portion.

Therefore, when assembling the other case along the width direction to one case to which the blower guide is attached, the inclined guide portion appropriately suppresses the interference with the blower guide and guides the other case to a predetermined position. Can be assembled smoothly.

As a result, compared to the grid member of the conventional vehicle air conditioner in which the assembling property when assembling the air conditioner case that can be divided in the width direction is not considered at all, the other case is compared with the one case in which the blower guide is fixed. Since the case can be smoothly assembled in the width direction, the assembling property can be improved.

According to the present invention, the following effects can be obtained.

That is, a blower guide is provided inside a case that is freely split in the width direction, and the blower guide is fixed to one case and protrudes from the split surface of the case toward the other case, and the other case. The side end is provided with a guide portion that is inclined away from the wall toward the other case side. Therefore, when assembling the other case to one case in the width direction, the case can be smoothly assembled by guiding the other case to a predetermined position while appropriately suppressing interference with the blower guide by the inclined guide portion. ..

As a result, as compared with the conventional air conditioner for vehicles provided with a grid member, the other case can be smoothly assembled to one case in the width direction, and the assembling property can be improved.

FIG. 1A is an overall cross-sectional view of the vehicle air conditioner according to the embodiment of the present invention, and FIG. 1B is an enlarged cross-sectional view of the vicinity of the blower guide in the vehicle air conditioner of FIG. 1A. FIG. 2A is a perspective view of the vicinity of the blower guide showing a state in which the first division case is removed in the vehicle air conditioner shown in FIG. 1A, and FIG. 2B is a cross-sectional view taken along the line IIB-IIB of FIG. 1B. ..

A preferred embodiment of the vehicle air conditioner according to the present invention will be described in detail below with reference to the accompanying drawings. In FIG. 1A, reference numeral 10 indicates a vehicle air conditioner according to an embodiment of the present invention.

As shown in FIGS. 1A and 1B, the vehicle air conditioner 10 includes an air conditioner case (case) 14 constituting each air passage 12 and an evaporator disposed inside the air conditioner case 14 to cool air. 16, a heating unit 18 provided on the downstream side of the evaporator 16 to heat air, a door mechanism 20 for switching the flow of air flowing through each passage 12, and a door mechanism 20 arranged in the passage 12 to guide the flow of air. Includes a blower guide 22 and

The air-conditioning case 14 can be divided into width directions (arrows C1 and C2 in FIGS. 2A and 2B) orthogonal to the front-rear direction (arrows A and B) of the vehicle, and the first and second division cases 24 and 26. And an intermediate case 28 sandwiched between the first divided case 24 and the second divided case 26. Then, the inside of the air conditioning case 14 is divided into two in the width direction by the partition wall 30 formed at the center in the width direction of the intermediate case 28, and the outside in the width direction (first and second division cases) with respect to the partition wall 30. It has a plurality of intermediate wall portions 32 erected on the 24th and 26th sides, respectively.

As shown in FIGS. 2A and 2B, the fitting in the width direction of the intermediate wall portion 32 on one side in the width direction (arrow C1 direction) is projected toward the first division case 24 side (arrow C1 direction). The first wall portion 36 having the joint portion 34a and extending from the outer wall in the width direction of the first divided case 24 toward the intermediate case 28 side is fitted and connected. The connection portion between the widthwise tip of the intermediate wall portion 32 and the first wall portion 36 is the first divided portion (divided surface) 38 that is divided into the first divided case 24 and the intermediate case 28.

Further, the tip of the intermediate wall portion 32 on the other side in the width direction (direction of arrow C2) has a fitting portion 34b protruding toward the side of the second split case 26 (direction of arrow C2). The second wall portion 40 extending from the outer wall in the width direction of the two-divided case 26 toward the intermediate case 28 side is fitted and connected. The connection portion between the widthwise tip of the intermediate wall portion 32 and the second wall portion 40 is the second divided portion (divided surface) 42 that is divided into the second divided case 26 and the intermediate case 28.

Further, as shown in FIG. 1A, above the air conditioning case 14 (in the direction of arrow D1), a vent blower port 44 that blows air near the face of the occupant in the vehicle interior and a vehicle adjacent to the vent blower port 44. A defroster blower port 46 that blows air is opened in the vicinity of the front window of the above, and the vent blower port 44 and the defroster blower port 46 are formed so as to straddle the first and second divided cases 24 and 26 and the intermediate case 28, respectively. Will be done.

Further, on the outer wall in the width direction on the rear side (direction of arrow B) of the first and second divided cases 24 and 26, heat blower ports 48 for blowing air near the feet of the occupants in the vehicle interior are formed, respectively.

On the other hand, inside the air conditioning case 14, an evaporator 16 is provided at a position on the upstream side (arrow A direction) in the air flow direction, and is heated to a position on the downstream side (arrow B direction) with respect to the evaporator 16. A unit 18 is provided, and the heating unit 18 is provided, for example, on a heater core 50 that heats air by circulating hot water inside, and on the downstream side (direction of arrow B) of the heater core 50, and generates heat under an energizing action. It is composed of an electric heater 52.

Further, inside the air conditioning case 14, a split rib 54 is provided at a position between the evaporator 16 and the heater core 50, for example, between the pair of air mix doors 84a and 84b in the door mechanism 20 described later, which will be described later. The warm air passage 78 is partitioned in the vertical direction (arrows D1 and D2).

Further, a first holder wall (wall portion) 56, which is one of the intermediate wall portions 32, is formed on the upper portion of the evaporator 16, and the upper end portion of the evaporator 16 is surrounded and held by the first holder wall 56. The first holder wall 56 is inclined downward toward the rear side of the vehicle (direction of arrow B), then bent at a substantially right angle and extends diagonally upward to face the blower guide 22 described later. Arranged like this.

As shown in FIGS. 1B and 2A, the first holder wall 56 includes a first intermediate holder wall 58 (see FIG. 2A) formed in the intermediate case 28 and extending outward in the width direction from the partition wall 30. The first wall portion 36a extending from the widthwise outer wall of the first divided case 24 toward the intermediate case 28 side, and the second wall extending from the widthwise outer wall of the second divided case 26 toward the intermediate case 28 side. The first and second wall portions 36a and 40a and the first intermediate holder wall 58 are formed of the same cross-sectional shape along the width direction and are connected to each other in the width direction.

Furthermore, a second holder wall (wall portion) 60, which is one of the intermediate wall portions 32, is formed on the upper portion of the heater core 50, and the upper end portion of the heater core 50 is surrounded and held by the second holder wall 60. The second holder wall 60 has an inclined surface 62 (see FIG. 1B) that faces the rear side of the vehicle and is inclined downward toward the downstream side (direction of arrow B), and the inclined surface 62 is a blower guide described later. It is formed so as to face 22.

As shown in FIGS. 1B to 2B, the second holder wall 60 is formed in the intermediate case 28 and extends outward in the width direction (in the directions of arrows C1 and C2 in FIG. 2B) from the partition wall 30. The intermediate holder wall 64, the first divided holder wall 66 which is one of the first wall portions 36 extending from the outer wall in the width direction of the first divided case 24 toward the intermediate case 28 side (arrow C2 direction), and the first It is composed of a second split holder wall 68 which is one of the second wall portions 40 extending from the outer wall in the width direction of the two split case 26 toward the intermediate case 28 side (arrow C1 direction). The first and second divided holder walls 66 and 68 and the second intermediate holder wall 64 are formed in the same cross-sectional shape along the width direction (arrows C1 and C2 directions) and are connected to each other in the width direction.

Furthermore, as shown in FIGS. 1A and 1B, the guide wall (wall portion) 70, which is one of the intermediate wall portions 32, is located on the downstream side of the second holder wall 60 and above the electric heater 52. Is formed, and the guide wall 70 is provided to guide the air that has passed through the heating unit 18 to the downstream side, extends in the front-rear direction (arrows A and B directions), and then the downstream end thereof is downward. It is formed so as to be inclined toward (arrow D2 direction).

As shown in FIGS. 1B and 2A, the guide wall 70 includes an intermediate guide wall 72 formed in the intermediate case 28 and extending outward in the width direction from the partition wall 30, and an outer wall in the width direction of the first divided case 24. It is composed of a first wall portion 36b extending from the middle case 28 side toward the intermediate case 28 side and a second wall portion 40b extending from the widthwise outer wall of the second divided case 26 toward the intermediate case 28 side. The second wall portions 36b and 40b and the intermediate guide wall 72 have the same cross-sectional shape and are formed along the width direction (arrows C1 and C2 directions) and are connected to each other in the width direction.

Further, inside the air conditioning case 14, as shown in FIG. 1A, a cold air passage 76 in which the evaporator 16 is arranged and a hot air passage 78 formed on the downstream side of the cold air passage 76 and in which the heating unit 18 is arranged are arranged. A bypass passage 80 bypassing the heating unit 18 on the downstream side of the cold air passage 76, cold air provided behind the heating unit 18 and flowing through the bypass passage 80, and hot air flowing through the hot air passage 78 By merging, a merging portion 82 that is temperature-controlled and becomes a temperature-controlled air is formed.

The door mechanism 20 is provided between the evaporator 16 and the heating unit 18, and is provided with a pair of air mix doors 84a and 84b for adjusting the mixing ratio of cold air and hot air, and a state of blowing air from the vent air outlet 44 into the vehicle interior. It includes a vent switching door 86 for adjusting, a defroster switching door 88 for switching the air blowing state from the defroster air outlet 46 to the front window, and a heat switching door 90 for opening and closing the heat air vent 48. Then, the heat switching door 90 switches the blowing state of the temperature-controlled air to the heat blowing port 48 under the rotating action.

The air mix doors 84a and 84b are meshed with each other via gears of a pair of shafts 92 rotatably supported by the air conditioning case 14, and the shafts 92 are rotated by a driving force from a driving means (not shown). , The air mix doors 84a and 84b are slidably displaced in the vertical direction (arrows D1 and D2 directions). Seal members 94 are provided at the upper ends and lower ends of the air mix doors 84a and 84b, respectively.

Then, one air mix door 84a is provided so as to be above the split rib 54 (direction of arrow D1), and the other air mix door 84b is provided so as to be below the split rib 54 (direction of arrow D2). The distribution ratio of the cold air flowing through the cold air passage 76 to the hot air passage 78 side is adjusted.

The blower guide 22 is formed by molding from, for example, a resin material, is provided between the first and second divided cases 24 and 26 and the intermediate case 28, respectively, and one end thereof faces the defroster blower port 46 and The other end is inclined and diagonally arranged so as to face the heat switching door 90.

Further, the blower guides 22 are arranged so as to be paired on the first and second divided cases 24 and 26 sides of the partition wall 30 of the intermediate case 28 (see FIG. 2B), and one end in the width direction thereof is the intermediate case. It is provided so as to face the partition wall 30 in 28, and the other end side in the width direction (in the directions of arrows C1 and C2 in FIG. 2B) is the first and second divisions with respect to the first and second divisions 38 and 42, respectively. They are arranged so as to project toward the cases 24 and 26, respectively.

That is, one blower guide 22 is arranged along the width direction (arrows C1 and C2 directions) so as to straddle the intermediate case 28 and the first split case 24, and the other blower guide 22 is arranged with the intermediate case 28. It is arranged along the width direction (arrows C1 and C2 directions) so as to straddle the second divided case 26.

As shown in FIGS. 1A to 2B, the ventilation guide 22 has, for example, a set of partition walls 96a and 96b that partition the air flow in the passage 12 in the width direction in the air conditioning case 14, and one of them. The first to third connection pieces 98, 100, and 102 are provided so as to connect the partition wall 96a and the other partition wall 96b in a width direction (arrows C1 and C2 directions) at predetermined intervals and in a substantially parallel state.

The first to third connection pieces 98, 100, and 102 are made of plate pieces having a constant width and extending along the width direction of the blower guide 22 (in the directions of arrows C1 and C2 in FIGS. 2A and 2B), and are heated. The lower ends of the partition walls 96a and 96b on the unit 18 side are connected to each other.

The first connection piece 98 is connected to the lower end of one end of the blower guide 22 facing the defroster blower port 46, and is substantially orthogonal to the downstream end of the first holder wall 56 on the rear side of the vehicle (in the direction of arrow B). Arranged and in contact.

The second connection piece 100 is connected to the lower part of the substantially central portion between one end and the other end of the blower guide 22, and overlaps the inclined surface 62 of the second holder wall 60 on the vehicle rear side (direction of arrow B). They are arranged and in contact with each other.

The third connection piece 102 is connected to the lower end of the other end of the blower guide 22 facing the heat switching door 90 and the merging portion 82, and overlaps the vehicle rear side (arrow B direction) with respect to the downstream end of the guide wall 70. It is placed in contact with the door.

Further, the first to third connection pieces 98, 100, 102 are outside in the width direction (on the side of the first and second divided cases 24, 26) and are housed in the first and second divided cases 24, 26. The first holder wall 56, the second holder wall 60, and the first to third guide portions 104, 106, and 108 that are inclined by a predetermined angle in a direction away from the guide wall 70 are provided at the ends thereof. It is connected to the lower end of the partition wall 96a provided on the outer side in the width direction via the first to third guide portions 104, 106, 108. The first to third guide portions 104, 106, and 108 are formed so as to have substantially the same angle with respect to the first to third connection pieces 98, 100, and 102.

A part of the blower guide 22 outside in the width direction is housed in the first and second divided cases 24 and 26, and a part of the first connection piece 98 including the first guide portion 104 is the first and second. A part of the second connection piece 100 that faces the second wall portions 36a and 40a and includes the second guide portion 106 faces the first and second divided holder walls 66 and 68 and includes the third guide portion 108. A part of the three connection pieces 102 is arranged so as to face the first and second wall portions 36b and 40b.

The vehicle air conditioner 10 according to the embodiment of the present invention is basically configured as described above, and then the first and second divided cases 24 and 26 are provided with respect to the intermediate case 28. The case of assembling will be described.

First, the first and third connection pieces 98, 100, 102 abut against the first and second intermediate holder walls 58, 64 and the intermediate guide wall 72, and one end side in the width direction faces the partition wall 30. The blower guide 22 is assembled to the intermediate case 28. At this time, a part of the blower guide 22 that is outside in the width direction protrudes outward in the width direction (arrows C1 and C2 directions) by a predetermined length with respect to the first and second divided portions 38 and 42, respectively. It becomes a state (see FIG. 2B).

Next, the first divided case 24 is brought closer to the intermediate case 28 from one side in the width direction, and the plurality of first wall portions 36 are fitted to the intermediate wall portion 32 of the intermediate case 28, and the first When the wall portion 36a is connected to the first intermediate holder wall 58, the first connection piece 98 of the blower guide 22 facing the end of the first wall portion 36a has the first guide portion 104. The interference with the first connection piece 98 is avoided, and by contacting the first guide portion 104, the first intermediate holder wall 58 is suitably guided and fitted.

At the same time, when the second wall portion 40a is connected to the second intermediate holder wall 64, the second wall portion 40a is secondly connected by the second guide portion 106 provided on the second connection piece 100 of the blower guide 22. Interference with the piece 100 is avoided, and by contacting the second guide portion 106, the second intermediate holder wall 64 is suitably guided and fitted to the end portion.

Further, when the first wall portion 36b is connected to the intermediate guide wall 72, the third guide portion 108 provided on the third connection piece 102 of the blower guide 22 is attached to the third connection piece 102 of the first wall portion 36b. Interference is avoided, and by contacting the third guide portion 108, the intermediate guide wall 72 is suitably guided and fitted to the end portion.

Similarly, the second divided case 26 is brought closer to the intermediate case 28 from the other side in the width direction, and the plurality of second wall portions 40 are fitted to the intermediate wall portion 32 of the intermediate case 28, and the second divided case 26 is fitted to the intermediate wall portion 32. When the wall portion 40a is connected to the first intermediate holder wall 58, the first guide portion 104 of the first connection piece 98 avoids interference with the blower guide 22, and the first guide portion 104 prevents the first intermediate holder. It is guided to the end of the wall 58 and fitted.

At the same time, when the second split holder wall 68 is connected to the second intermediate holder wall 64, the second guide portion 106 avoids interference of the second split holder wall 68 with the blower guide 22, and the second guide portion 106. It is guided to and fitted to the end of the second intermediate holder wall 64 by the guide portion 106.

Further, when the second wall portion 40b is connected to the intermediate guide wall 72, the third guide portion 108 avoids the interference of the second wall portion 40b with the third connection piece 102, and the third guide portion 108. By contacting with, it is guided to the end of the intermediate guide wall 72 and fitted.

As a result, the first and second divided cases 24 and 26 are smoothly assembled to the intermediate case 28 to which the blower guide 22 is mounted.

Next, the operation of the vehicle air conditioner 10 in which the first and second divided cases 24 and 26 are assembled with respect to the intermediate case 28 as described above will be described with reference to FIGS. 1A and 1B.

First, based on a control signal from a controller (not shown), air is introduced into the air conditioning case 14 by driving a blower (not shown), and this air flows along the cold air passage 76 and is cooled by passing through the evaporator 16. To.

Then, when the pair of air mix doors 84a and 84b move toward the split rib 54 side so as to approach each other and block the upstream side of the heating unit 18, cold air flows from the cold air passage 76 along the bypass passage 80. After bypassing the heating unit 18 and flowing to the air blower guide 22 side, air is blown from the vent air outlet 44 opened by the vent switching door 86 above the air conditioning case 14 to the vicinity of the occupant's face for cooling. Driving is done.

Further, in the heating mode in which the air is blown to the vicinity of the feet of the occupants in the passenger compartment, the air mix doors 84a and 84b are moved up and down by a predetermined distance so as to be separated from each other, and flow from the cold air passage 76 to the bypass passage 80. The cold air and the hot air that flows through the hot air passage 78 and is heated by the heating unit 18 flow toward the air blower guide 22 side arranged at the confluence 82 and are mixed, and after the temperature is adjusted, the heat switching door The heat is blown into the vehicle interior from the heat air outlet 48 opened by 90.

As described above, in the present embodiment, the blower guide 22 provided inside the air conditioning case 14 is provided, and the blower guide 22 is provided on the outer side in the width direction while being mounted on the intermediate case 28 in the center in the width direction. It is arranged so as to straddle the first and second divided portions 38 and 42, which are the divided portions with the first and second divided cases 24 and 26, so as to straddle the outside in the width direction, and a pair of blower guides 22. The first to third connection pieces 98, 100, 102 connecting the partition walls 96a and 96b and extending in the width direction (arrows C1 and C2 directions) are the first and second holder walls 56, 60 of the air conditioning case 14. It is provided so as to face and abut the guide wall 70.

Then, at the ends of the first to third connection pieces 98, 100, 102 which are outside in the width direction of the blower guide 22, from the first and second holder walls 56, 60 and the guide wall 70 toward the outside in the width direction. It includes first to third guide portions 104, 106, and 108 that are inclined in the direction of separation.

Therefore, when assembling the first and second divided cases 24 and 26 from the outside in the width direction to the intermediate case 28 to which the blower guide 22 is mounted, the first and second divided cases are more than the first and second divided portions 42. The first and second split cases with respect to the blower guide 22 by the first to third guide portions 104, 106, 108 provided on the first to third connection pieces 98, 100, 102 protruding toward the cases 24 and 26. Interference between 24 and 26 is suitably suppressed, and the vehicle can be smoothly assembled by being guided to a predetermined position.

As a result, as compared with the conventional vehicle air conditioner in which the assembling property when assembling the air conditioner case that can be divided in the width direction is not considered at all, the first and second divided cases 24 and 26 are compared with the intermediate case 28. Can be smoothly assembled in the width direction, so that the assembling property can be improved.

Further, since the first to third guide portions 104, 106, and 108 provided on the blower guide 22 can be formed at the same time when the blower guide 22 is molded, the manufacturing process and the manufacturing cost are not increased. It can be easily formed.

Further, the guide portion is not limited to the case where the guide portion is provided on the three first to third connection pieces 98, 100, 102 of the blower guide 22, and the intermediate wall portion 32, the first wall portion 32, the first, which the blower guide 22 abuts with. And the connection pieces corresponding to the quantity of the second wall portions 36 and 40 may be formed and provided at the end portions thereof, respectively.

It should be noted that the vehicle air conditioner according to the present invention is not limited to the above-described embodiment, and of course, various configurations can be adopted without departing from the gist of the present invention.

10 ... Vehicle air conditioner 14 ... Air conditioning case 22 ... Blower guide 24 ... First division case 26 ... Second division case 28 ... Intermediate case 32 ... Intermediate wall parts 36, 36a, 36b ... First wall part 38 ... First division Parts 40, 40a, 40b ... Second wall part 42 ... Second division part 56 ... First holder wall 60 ... Second holder wall 70 ... Guide wall 96a, 96b ... Partition wall 98 ... First connection piece 100 ... Second connection One piece 102 ... Third connection piece 104 ... First guide part 106 ... Second guide part 108 ... Third guide part

Claims (1)

In a vehicle air conditioner provided with a case having a wall portion inside which is divisible in the width direction and constitutes a passage through which air flows, and a blower guide arranged so as to face the wall portion in the passage. ,
The case has a divided surface in which one divided case and the other case are connected and divided in the middle in the width direction of the passage.
The air-conditioning guide is fixed to the one case and protrudes from the divided surface toward the other case side, and at the end portion on the other case side, from the wall portion toward the other case side. A vehicle air conditioner equipped with a guide section that is inclined in the direction of separation.

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