JP6816742B2 - Vehicle air conditioner - Google Patents

Description

The present invention relates to a vehicle air conditioner.

As an air conditioning unit for a vehicle of this type, there is one described in Patent Document 1. This vehicle air conditioning unit includes a blower fan that sucks and blows air from a plurality of air passages in the casing, and a suction side partition member arranged on the suction side of the blower fan in the casing. Further, the vehicle air-conditioning unit of Patent Document 1 includes a blow-out side partition member arranged on the blow-out side of the blower fan in the casing. The suction-side partition member and the blow-out side partition member each partition the air flow from the plurality of air passages, and by partitioning the air flow from each other in this way, mixing of the plurality of air flows is suppressed. In this vehicle air conditioning unit, each air flow flowing out from the plurality of suction side air passages is rotated by a predetermined angle in the direction around the rotation axis of the blower fan, and then flows into the plurality of outlet side air passages.

Japanese Unexamined Patent Publication No. 1016-1101

By the way, this type of air conditioning unit includes a vehicle air conditioning unit in which the inside / outside air two-layer mode can be selected. In such a vehicle air-conditioning unit, when the inside / outside air two-layer mode is selected, in order to achieve both reduction of ventilation loss and prevention of window fogging, the window of the windshield arranged on the upper side of the vehicle is used to clear the windows. And heat the occupant's feet with shyness.

This vehicle air-conditioning unit sucks outside air from a suction port arranged on the passenger seat side of the suction-side partition member of the vehicle air-conditioning unit, and is arranged on the driver's seat side of the suction-side partition member of the vehicle air-conditioning unit. It is arranged so that the inside air is sucked in from the suction port. The outside air sucked from the suction port located on the passenger seat side is rotated around the fan axis by the rotation of the blower fan, blown out from above the air conditioning unit, and operated from the suction side partition member of the vehicle air conditioning unit. The inside air sucked in from the suction port arranged on the seat side is rotated around the fan axis by the rotation of the blower fan, and is blown out from below the air conditioning unit.

However, in such a configuration in which the inside air and the outside air are separately sucked from the suction ports arranged on the left and right sides of the suction side partition member of the air conditioning unit, when the inside air mode or the outside air mode is selected, the air in the air conditioning unit The flow rate distribution deteriorates.

That is, when the outside air mode is selected, the outside air is sucked only from the suction port arranged on the passenger seat side from the suction side partition member of the vehicle air conditioning unit, and when the inside air mode is selected, the vehicle air conditioning is performed. Since the inside air is sucked only from the suction port arranged on the driver's seat side from the suction side partition member of the unit, there is a problem that the flow distribution of the sucked air deteriorates and the pressure loss of the ventilation passage becomes large.

The present invention has been made in view of the above problems, and an object of the present invention is to reduce the pressure loss of air flowing through the air conditioning unit.

In order to achieve the above object, the invention according to claim 1 is a vehicle air conditioner mounted on a vehicle, in which air flows through a suction side air passage (121, 122) and a blow side air passage (123, 124). ), And a blower fan (201) arranged in the case member, and a suction side air passage is first sucked into the suction side of the blower fan in the case member. A suction side partition member (125) that partitions the side air passage (121) and the second suction side air passage (122) is arranged, and the blow side air passage is provided on the first blow side on the blow side of the blower fan in the case member. An outlet side partition member (126) that partitions the air passage (123) and the second outlet side air passage (124) is arranged, and the relative position of the outlet side partition member with respect to the suction side partition member is displaced in the direction around the rotation axis of the blower fan. The suction side partition member and the blow side partition member are arranged so that the blower fan blows the air sucked from the first suction side air passage to the first blow side air passage and the second suction side air passage. The air sucked from the air is blown out to the second air passage, and the case member has a first opening (131) for introducing the outside air outside the vehicle interior into the first air passage, and the inside air inside the vehicle. A second opening (132) for introducing the inside air into the suction side air passage, a third opening (133) for introducing the outside air outside the passenger compartment into the second suction side air passage, and a second suction side air passage for the inside air inside the passenger compartment. A fourth opening (134) to be introduced into the air is formed.

According to such a configuration, the outside air outside the vehicle interior can be introduced from the first opening into the first suction side air passage, and the inside air inside the vehicle interior can be introduced from the second opening into the first suction side air passage. Further, since the outside air outside the vehicle interior can be introduced from the third opening into the second suction side air passage and the inside air inside the vehicle interior can be introduced from the fourth opening into the second suction side air passage, the sucked air can be introduced. The flow rate distribution can be improved and the pressure loss of the air flowing through the air conditioning unit can be reduced.

In addition, the reference numerals in parentheses of each means described in this column and the scope of claims indicate the correspondence with the specific means described in the embodiment described later.

It is a schematic sectional view of the air-conditioning unit for a vehicle which concerns on 1st Embodiment. FIG. 2 is a sectional view taken along line II-II in FIG. It is an external view of the inside and outside air case of the vehicle air-conditioning unit which concerns on 1st Embodiment. FIG. 6 is a sectional view taken along line IV-IV in FIG. FIG. 2 is a sectional view taken along line II-II corresponding to the vehicle air-conditioning unit according to the second embodiment. FIG. 2 is a sectional view taken along line II-II corresponding to the vehicle air-conditioning unit according to the third embodiment. FIG. 2 is a sectional view taken along line II-II corresponding to the vehicle air-conditioning unit according to the fourth embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each of the following embodiments, the same or equal parts are designated by the same reference numerals in the drawings.

(First Embodiment)
The vehicle air-conditioning unit 10 according to the first embodiment will be described with reference to FIGS. 1 to 4. As shown in FIG. 1, the vehicle air-conditioning unit 10 of the present embodiment includes an air-conditioning case 12, an inside / outside air case 13, an evaporator 16, a heater core 18, a blower 20, and a plurality of doors 21, 22, 23, 24a, 24b. It has 25. The air conditioning case 12 and the inside / outside air case 13 correspond to case members.

The vehicle air-conditioning unit 10 is arranged inside, for example, an instrument panel provided at the frontmost portion of the vehicle interior. The arrows DR1, DR2, and DR3 in each figure indicate the orientation of the vehicle on which the vehicle air conditioning unit 10 is mounted. That is, the arrow DR1 in FIG. 1 indicates the vertical direction of the vehicle, the arrow DR2 in FIGS. 1 and 2 indicates the front-rear direction of the vehicle, and the arrow DR3 in FIG. 2 indicates the horizontal direction of the vehicle.

The air conditioning case 12 is a resin member forming the outer shell of the vehicle air conditioning unit 10. The inside / outside air case 13 is a resin member that takes in at least one of the inside air inside the vehicle interior and the outside air outside the vehicle interior into the air conditioning case 12. The inside / outside air case 13 and the air conditioning case 12 are integrated. The inside / outside air case 13 and the air conditioning case 12 have a tubular shape extending in the vehicle front-rear direction DR1 as a whole. As shown in FIG. 2, the inside / outside air case 13 has a cylindrical shape with a rectangular cross section.

As shown in FIG. 1, inside the case member formed by the air conditioning case 12 and the inside / outside air case 13, a first suction side air passage 121 through which air flows, a second suction side air passage 122, and a first outlet A side air passage 123 and a second outlet side air passage 124 are formed. Further, inside the case member, a blower 20 is arranged to blow out the air sucked from the first and second suction side air passages 121 and 122 to the first and second blow side air passages 123 and 124. All of these air passages 121, 122, 123, and 124 are formed so as to extend in the vehicle front-rear direction DR1.

Inside the case member formed by the air conditioning case 12 and the inside / outside air case 13, a suction side partition member 125 for partitioning the first suction side air passage 121 and the second suction side air passage 122, and a first outlet side air passage An outlet side partition member 126 that partitions 123 and the second outlet side air passage 124 is arranged.

The suction side partition member 125 is arranged so as to partition the air passage on the suction side of the blower 20 to the left and right inside the case member formed by the air conditioning case 12 and the inside / outside air case 13.

Further, the blow-out side partition member 126 is arranged so as to vertically partition the air passage on the blow-out side of the blower 20 inside the case member formed by the air conditioning case 12 and the inside / outside air case 13.

The suction side air passage 121 is arranged on the left side of the suction side partition member 125, and the suction side air passage 122 is arranged on the right side of the suction side partition member 125. Further, the blow-out side air passage 123 is arranged above the blow-out side partition member 126, and the blow-out side air passage 124 is arranged below the blow-out side partition member 126.

As shown in FIGS. 2 and 3, the inside / outside air case 13 has a first opening 131 for introducing the outside air outside the vehicle interior into the first suction side air passage 121 and an inside air inside the vehicle interior for the first suction side air passage. A second opening 132 to be introduced into 121 is formed. Further, the inside / outside air case 13 has a third opening 133 for introducing the outside air outside the vehicle interior into the second suction side air passage 122 and a fourth opening for introducing the inside air inside the vehicle interior into the second suction side air passage 122. 134 and are formed.

An outside air introduction duct (not shown) for introducing outside air outside the vehicle interior is connected to the first opening 131 and the third opening 133, respectively. Outside air is introduced from the outside air introduction duct connected to the first opening 131 into the first suction side air passage 121 via the first opening 131, and the third from the outside air introduction duct connected to the third opening 133. Outside air is introduced into the second suction side air passage 122 through the opening 133.

The inside air in the vehicle interior is introduced into the first suction side air passage 121 through the second opening 132, and is also introduced into the second suction side air passage 122 through the fourth opening 134.

The first opening 131 and the third opening 133 are respectively arranged on the upper surface in the vertical direction of the inside / outside air case 13. The second opening 132 for introducing the inside air is arranged on the left side surface of the vehicle in the inside / outside air case 13 in the left-right direction, and the fourth opening 134 for introducing the inside air is located on the right side side of the vehicle in the inside / outside air case 13. It is placed on the surface of.

As described above, the first opening 131 for sucking the outside air and the second opening 132 for sucking the inside air are arranged on the planes orthogonal to each other in the inside / outside air case 13. Further, the third opening 133 for sucking the outside air and the fourth opening 134 for sucking the inside air are arranged on planes orthogonal to each other in the inside / outside air case 13.

A first door 141 for opening and closing the first opening 131 is arranged in the first opening 131, and a second door 142 for opening and closing the second opening 132 is arranged in the second opening 132. There is. Further, a third door 143 that opens and closes the third opening 133 is arranged in the third opening 133, and a fourth door 144 that opens and closes the fourth opening 134 is arranged in the fourth opening 134. Has been done. The first to fourth doors 141 to 144 are controlled by a control unit (not shown). The first to fourth doors 141 to 144 in FIG. 2 are shown without hatching showing a cross section.

The evaporator 16 is a cooling heat exchanger that cools the air passing through the evaporator 16. The evaporator 16 is housed in the air conditioning case 12, and is provided so as to straddle the outlet side partition member 126 and extend to both the outlet side air passage 123 and the outlet side partition member 126. Then, the evaporator 16 cools the air flowing through the blow-out side air passage 123 and cools the air flowing through the blow-out side air passage 124.

For example, the evaporator 16 constitutes a well-known refrigeration cycle device that circulates a refrigerant together with a compressor, a condenser, and an expansion valve (not shown). Then, the evaporator 16 exchanges heat between the air passing through the evaporator 16 and the refrigerant, and the refrigerant is evaporated and the air is cooled by the heat exchange.

The blower 20 has a blower fan 201 provided in the air conditioning case 12 and rotating around the fan axis CL1 and a fan motor 202 for rotating and driving the blower fan 201. The blower fan 201 is a centrifugal fan in this embodiment.

The blower 20 sucks air from one side of the axial DRa of the fan axis CL1 by the rotation of the blower fan 201, and blows the sucked air outward in the radial direction of the blower fan 201.

The blower fan 201 is arranged between the first and second suction side air passages 121 and 122 and the first and second outlet side air passages 123 and 124 in the axial direction DRa of the fan axis CL1.

As shown in FIG. 4, in the vehicle air-conditioning unit 10 of the present embodiment, the relative position of the blow-out side partition member 126 with respect to the suction-side partition member 125 is displaced by about 90 ° in the direction around the rotation axis of the blower fan 201. , The suction side partition member 125 and the blowout side partition member 126 are arranged.

The blower fan 201 blows out the air sucked from the first and second suction side air passages 121 and 122 by rotating it at a predetermined angle in the direction around the rotation axis of the blower fan. More specifically, as shown in FIG. 4, the blower fan 201 rotates the air sucked from the first suction side air passage 121 by about 90 ° around the fan axis CL1 to rotate the first blow side air passage 123. The air sucked from the second suction side air passage 122 is rotated about 90 ° around the fan axis CL1 and blown out to the second suction side air passage 124.

Further, the air conditioning case 12 has a fan case wall 127 arranged on one side of the fan axial direction DRa with respect to the blower fan 201. The fan case wall 127 partitions the inside of the air conditioning case 12 into one side and the other side in the fan axial direction DRa. A fan suction hole 127a penetrating the fan axial direction DRa is formed in the central portion of the fan case wall 127. Therefore, the air sucked into the blower fan 201 by the rotation of the blower fan 201 is sucked into the blower fan 201 from one side of the fan axial direction DRa through the fan suction hole 127a. The other side of the fan axial direction DRa is the opposite side of one side of the fan axial direction DRa.

The heater core 18 is a heater that heats the air passing through the heater core 18. The heater core 18 is housed in the air conditioning case 12 and is provided so as to straddle the outlet side partition member 126 and extend to both the first outlet side air passage 123 and the second outlet side air passage 124.

However, the heater core 18 is arranged on the downstream side of the air flow with respect to the evaporator 16. An upper bypass passage 123a for flowing air in parallel with the heater core 18 is formed on the upper side of the first outlet side air passage 123 with respect to the heater core 18. Further, a lower bypass passage 124a for flowing air in parallel with the heater core 18 is formed on the lower side of the second outlet side air passage 124 with respect to the heater core 18. That is, the bypass passages 123a and 124a are bypass passages through which the air from the evaporator 16 flows by bypassing the heater core 18, respectively.

A first air mix door 24a is provided on the upstream side of the air flow with respect to the heater core 18 and on the downstream side of the air flow with respect to the evaporator 16 in the first outlet side air passage 123. The first air mix door 24a is a sliding door mechanism, and is slid by an electric actuator (not shown). The first air mix door 24a opens and closes the air inflow side of the heater core 18 and opens and closes the upper bypass passage 123a in the first outlet side air passage 123.

The first air mix door 24a adjusts the air volume ratio between the air volume passing through the heater core 18 and the air volume passing through the upper bypass passage 123a according to the sliding position.

A second air mix door 24b is provided on the upstream side of the air flow with respect to the heater core 18 and on the downstream side of the air flow with respect to the evaporator 16 in the second outlet side air passage 124. The second air mix door 24b is a sliding door mechanism, and is slid by an electric actuator (not shown). The second air mix door 24b opens and closes the air inflow side of the heater core 18 and opens and closes the lower bypass passage 124a in the second outlet side air passage 124.

The second air mix door 24b adjusts the air volume ratio between the air volume passing through the heater core 18 and the air volume passing through the lower bypass passage 124a according to the slide position.

The air conditioning case 12 is formed with a face outlet 12a, a defroster outlet 12b, and a foot outlet 12c that blow air out of the air conditioning case 12. The face outlet 12a and the defroster outlet 12b are connected to the first outlet side air passage 123 on the downstream side of the air flow with respect to the heater core 18 and the upper bypass passage 123a, respectively. Further, the foot outlet 12c is connected to the second outlet side air passage 124 on the downstream side of the air flow with respect to the heater core 18 and the lower bypass passage 124a.

The air flowing out from the face outlet 12a is guided through a duct (not shown) and blown out toward the face or chest of the occupant seated in the front seat in the passenger compartment. The air flowing out from the defroster outlet 12b is guided through a duct (not shown) and blown out toward the window glass on the front surface of the vehicle in the vehicle interior. The air flowing out from the foot outlet 12c is guided through a duct (not shown) and blown out toward the feet of the occupant seated in the front seat in the passenger compartment.

Further, the face outlet 12a is provided with a face door 21, and the face door 21 opens and closes the face outlet 12a. A defroster door 22 is provided at the defroster outlet 12b, and the defroster door 22 opens and closes the defroster outlet 12b. A foot door 23 is provided at the foot outlet 12c, and the foot door 23 opens and closes the foot outlet 12c.

Further, on the downstream side of the air flow of the heater core 18 in the first outlet side air passage 123, warm air passing through the heater core 18 and cold air passing through the upper bypass passage 123a are mixed. Then, the mixed air is mainly blown out into the vehicle interior from the open outlet of the face outlet 12a and the defroster outlet 12b.

Further, on the downstream side of the air flow of the heater core 18 in the lower bypass passage 124a, warm air passing through the heater core 18 and cold air passing through the lower bypass passage 124a are mixed. Then, when the foot outlet 12c is open, the mixed air is mainly blown out from the foot outlet 12c into the vehicle interior.

Further, a ventilation passage communication door 25 is provided on the downstream side of the air flow of the heater core 18 among the air passages 123 and 124 on the outlet side. The ventilation passage communication door 25 connects and connects the two outlet side air passages 123 and 124 on the downstream side of the air flow of the heater core 18.

For example, if the ventilation passage communication door 25 is opened, the two outlet side air passages 123 and 124 communicate with each other. In this case, the air that has passed through one or both of the heater core 18 and the upper bypass passage 123a in the first outlet side air passage 123 can be circulated not only to the face outlet 12a and the defroster outlet 12b but also to the foot outlet 12c. Become. Then, the air that has passed through one or both of the heater core 18 and the lower bypass passage 124a in the second outlet side air passage 124 can be circulated not only to the foot outlet 12c but also to the face outlet 12a and the defroster outlet 12b. Become.

Further, when the ventilation passage communication door 25 is closed, the mutual communication between the two outlet side air passages 123 and 124 is cut off. In this case, the air that has passed through one or both of the heater core 18 and the upper bypass passage 123a in the first outlet side air passage 123 cannot flow to the foot outlet 12c. Then, the air that has passed through one or both of the heater core 18 and the lower bypass passage 124a in the second outlet side air passage 124 cannot flow to the face outlet 12a and the defroster outlet 12b.

Next, the operation of the vehicle air conditioning unit 10 will be described. The vehicle air conditioning unit 10 is operated by being switched to any one of the operation modes such as the inside / outside air two-layer mode, the outside air mode, and the inside air mode. The inside / outside air two-layer mode is, for example, when the outside air is blown toward the windshield to prevent window fogging and the inside air is circulated in the vehicle interior to quickly heat the feet of the occupants when the vehicle is warmed up. Is selected.

First, a case where the inside / outside air two-layer mode in which the inside air which is the air inside the vehicle and the outside air which is the air outside the vehicle interior are separately flowed will be described.

In the inside / outside air two-layer mode, as shown in FIG. 1, the ventilation passage communication door 25 is closed. Further, the first door 141 is controlled to open the first opening 131, the second door 142 is controlled to close the second opening 132, and the third door 143 is controlled to close the third opening 133. The fourth door 144 is controlled to open the fourth opening 134.

Then, when the blower 20 operates, the outside air is introduced from the first opening 131 to the first suction side air passage 121 as shown by the arrow FA1, and the inside air is introduced from the fourth door 144 to the second suction side as shown by the arrow FA2. It is introduced into the air passage 122.

The outside air introduced into the first suction-side air passage 121 is sucked into the blower fan 201, and the outside air sucked into the blower fan 201 is blown out from the blower fan 201 and flows into the first blow-out side air passage 123.

Further, the inside air introduced into the second suction side air passage 122 is sucked into the blower fan 201, and the inside air sucked into the blower fan 201 is blown out from the blower fan 201, and the second blow side air passage is shown by the arrow FB2. It flows into 124.

At this time, the outside air flowing from the first suction side air passage 121 to the first outlet side air passage 123 and the inside air flowing from the second suction side air passage 122 to the second outlet side air passage 124 hardly mix with each other. , Each distributed.

The outside air flowing through the first outlet side air passage 123 passes through the evaporator 16 and then passes through each or one of the heater core 18 and the upper bypass passage 123a. Then, the passing air is blown out to a predetermined position in the vehicle interior from the open outlet of the face outlet 12a and the defroster outlet 12b as shown by arrows FA3 and FA4.

Further, the inside air flowing through the second outlet side air passage 124 passes through the evaporator 16 and then passes through each or one of the heater core 18 and the lower bypass passage 124a. Then, the passing air is blown out from the foot outlet 12c to a predetermined location in the vehicle interior as shown by the arrow FB3.

Next, a case where the outside air mode in which the outside air, which is the air outside the vehicle interior, flows into the vehicle interior is selected will be described.

In the outside air mode, the ventilation passage communication door 25 is opened. Further, the first door 141 is controlled to open the first opening 131, the second door 142 is controlled to close the second opening 132, and the third door 143 is controlled to open the third opening 133. The fourth door 144 is controlled to close the fourth opening 134.

Then, when the blower 20 is operated, the outside air is introduced from the first opening 131 into the first suction side air passage 121 and from the third opening 133 into the second suction side air passage 122.

The outside air introduced into the first suction-side air passage 121 is sucked into the blower fan 201, and the outside air sucked into the blower fan 201 is blown out from the blower fan 201 and flows into the first blow-out side air passage 123.

Further, the outside air introduced into the second suction side air passage 122 is sucked into the blower fan 201, and the outside air sucked into the blower fan 201 is blown out from the blower fan 201 and flows into the second blowout side air passage 124.

The outside air flowing through the first outlet side air passage 123 passes through the evaporator 16 and then passes through each or one of the heater core 18 and the upper bypass passage 123a. Then, the passing air is blown out to a predetermined position in the vehicle interior from the open outlet of the face outlet 12a and the defroster outlet 12b as shown by arrows FA3 and FA4.

Further, the outside air flowing through the second outlet side air passage 124 passes through the evaporator 16 and then passes through each or one of the heater core 18 and the lower bypass passage 124a. Then, the passing air is blown out from the foot outlet 12c to a predetermined location in the vehicle interior as shown by the arrow FB3.

Next, a case where the inside air mode for circulating the inside air, which is the air inside the vehicle interior, is selected will be described.

In the inside air mode, the ventilation passage communication door 25 is opened. Further, the first door 141 is controlled to close the first opening 131, the second door 142 is controlled to open the second opening 132, and the third door 143 is controlled to close the third opening 133. The fourth door 144 is controlled to open the fourth opening 134.

Then, when the blower 20 is activated, the inside air is introduced from the second opening 132 into the first suction side air passage 121 and from the fourth opening 134 into the second suction side air passage 122.

The inside air introduced into the first suction-side air passage 121 is sucked into the blower fan 201, and the inside air sucked into the blower fan 201 is blown out from the blower fan 201 and flows into the first blow-out side air passage 123.

Further, the inside air introduced into the second suction side air passage 122 is sucked into the blower fan 201, and the inside air sucked into the blower fan 201 is blown out from the blower fan 201 and flows into the second blowout side air passage 124.

The inside air flowing through the first outlet side air passage 123 passes through the evaporator 16 and then passes through each or one of the heater core 18 and the upper bypass passage 123a. Then, the passing air is blown out to a predetermined position in the vehicle interior from the open outlet of the face outlet 12a and the defroster outlet 12b as shown by arrows FA3 and FA4.

Further, the inside air flowing through the second outlet side air passage 124 passes through the evaporator 16 and then passes through each or one of the heater core 18 and the lower bypass passage 124a. Then, the passing air is blown out from the foot outlet 12c to a predetermined location in the vehicle interior as shown by the arrow FB3.

As described above, the vehicle air-conditioning unit 10 of the present embodiment has the case members 12 and 13 forming the suction side air passages 121 and 122 and the outlet side air passages 123 and 124 through which air flows, and the inside of the case member. It is provided with an arranged blower fan 201.

Further, on the suction side of the blower fan in the case member, a suction side partition member 125 for partitioning the suction side air passage into the first suction side air passage 121 and the second suction side air passage 122 is arranged.

Further, in the case member, on the blowing side of the blower fan, a blowing side partition member 126 for partitioning the blowing side air passage into the first blowing side air passage 123 and the second blowing side air passage 124 is arranged.

Further, the suction side partition member 125 and the blow side partition member 126 are arranged so that the relative position of the blow side partition member 126 with respect to the suction side partition member 125 is displaced in the direction around the rotation axis of the blower fan 201.

Further, the blower fan 201 blows the air sucked from the first suction side air passage 121 to the first blow side air passage 123 and the air sucked from the second suction side air passage 122 to the second blow side air passage 124. And blow out.

The case member includes a first opening 131 that introduces the outside air outside the vehicle interior into the first suction side air passage 121, and a second opening 132 that introduces the inside air inside the vehicle interior into the first suction side air passage 121. A third opening 133 that introduces the outside air outside the vehicle interior into the second suction side air passage 122 and a fourth opening 134 that introduces the inside air inside the vehicle interior into the second suction side air passage 122 are formed. ..

According to such a configuration, the outside air outside the vehicle interior is introduced from the first opening 131 into the first suction side air passage 121, and the inside air inside the vehicle interior is introduced from the second opening 132 into the first suction side air passage 121. Further, the outside air outside the vehicle interior is introduced from the third opening 133 into the second suction side air passage 122, and the inside air inside the vehicle interior is introduced from the fourth opening 134 into the second suction side air passage 122. Therefore, the flow rate distribution of the sucked air can be improved, and the pressure loss of the air flowing through the air conditioning unit can be reduced.

By the way, the outside air introduction duct connected to the first opening 131 and the third opening 133 is arranged on the upper side of the air conditioning case 12.

Here, in the vehicle air-conditioning unit 10 of the present embodiment, the first opening 131 and the third opening 133 for introducing the outside air outside the vehicle interior are arranged on the upper surface in the vertical direction of the inside / outside air case 13. Therefore, the placement space of the outside air introduction duct can be reduced. Further, since the length of the outside air introduction duct can be shortened, the pressure loss of the outside air introduced into the air conditioning unit can be reduced.

Further, the vehicle air-conditioning unit 10 of the present embodiment has a first door 141 that opens and closes the first opening 131, a second door 142 that opens and closes the second opening 132, and a third door that opens and closes the third opening 133. It includes a 3-door 143 and a fourth door 144 that opens and closes the fourth opening 134.

Therefore, by controlling the opening and closing of the first to fourth doors 141 to 144 according to the specifications of the vehicle, for example, even if the driver's seat is arranged on the right side of the vehicle, the driver's seat is arranged on the left side of the vehicle. The desired outside air and inside air can be introduced into the first suction side air passage 121 and the second suction side air passage 122 even in the vehicle.

(Second Embodiment)
The vehicle air-conditioning unit 10 according to the second embodiment will be described with reference to FIG. The vehicle air-conditioning unit 10 of the first embodiment is configured such that outside air is introduced into the first opening 131 and the third opening 133, and inside air is introduced into the second opening 132 and the fourth opening 134. ing. On the other hand, in the vehicle air-conditioning unit 10 of the present embodiment, the inside air is introduced into the first opening 131 and the third opening 133, and the outside air is introduced into the second opening 132 and the fourth opening 134. It is configured.

In this way, the inside air may be introduced into the first opening 131 and the third opening 133, and the outside air may be introduced into the second opening 132 and the fourth opening 134.

In the present embodiment, the same effect obtained from the same configuration as that of the first embodiment can be obtained in the same manner as that of the first embodiment.

(Third Embodiment)
The vehicle air-conditioning unit 10 according to the third embodiment will be described with reference to FIG. The vehicle air-conditioning unit 10 of the present embodiment is configured such that inside air is introduced into the first opening 131 and the fourth opening 134, and outside air is introduced into the second opening 132 and the third opening 133. ..

In this way, the inside air may be introduced into the first opening 131 and the fourth opening 134, and the outside air may be introduced into the second opening 132 and the third opening 133.

In the present embodiment, the same effect obtained from the same configuration as that of the first embodiment can be obtained in the same manner as that of the first embodiment.

(Fourth Embodiment)
The vehicle air-conditioning unit 10 according to the fourth embodiment will be described with reference to FIG. 7. The vehicle air-conditioning unit 10 of the present embodiment is configured such that outside air is introduced into the first opening 131 and the fourth opening 134, and inside air is introduced into the second opening 132 and the third opening 133. ..

In this way, it is also possible to introduce outside air into the first opening 131 and the fourth opening 134 and introduce inside air into the second opening 132 and the third opening 133.

In the present embodiment, the same effect obtained from the same configuration as that of the first embodiment can be obtained in the same manner as that of the first embodiment.

(Other embodiments)
(1) In each of the above embodiments, the suction side partition member and the blow side partition member are arranged so that the relative position of the blow side partition member with respect to the suction side partition member is displaced by 90 ° in the direction around the rotation axis of the blower fan 201. Then, in the blower fan 201, the blower blows the air sucked from the first suction side air passage to the first blow side air passage and the air sucked from the second suction side air passage to the second blow side air. Blow out into the aisle.

However, the angle at which the relative position of the blow-out side partition member with respect to the suction-side partition member is displaced in the direction around the rotation axis of the blower fan is not limited to 90 °.

(2) In each of the above embodiments, when the outside air mode and the inside air mode are selected, the ventilation passage communication door 25 is opened, that is, the first outlet side air passage 123 and the second outlet side air passage 124 are opened. The ventilation passage communication door 25 is controlled so as to be in a communication state. On the other hand, when the outside air mode and the inside air mode are selected, the ventilation passage communication door 25 is closed, that is, the first outlet side air passage 123 and the second outlet side air passage 124 are not communicated with each other. It is also possible to control the air passage communication door 25.

(3) In each of the above embodiments, the first door 141 that opens and closes the first opening 131, the second door 142 that opens and closes the second opening 132, and the third door 143 that opens and closes the third opening 133. , A fourth door 144 that opens and closes the fourth opening 134, and the like.

On the other hand, the fifth door that closes the second opening 132 when the first opening 131 is opened and opens the second opening 132 when the first opening 131 is closed, and the third opening 133. A sixth door may be provided that closes the fourth opening 134 when opened and opens the fourth opening 134 when the third opening 133 is closed.

The present invention is not limited to the above-described embodiment, and can be appropriately modified within the scope of the claims. Further, in each of the above embodiments, it goes without saying that the elements constituting the embodiment are not necessarily essential except when it is clearly stated that they are essential and when they are clearly considered to be essential in principle. No. Further, in each of the above embodiments, when numerical values such as the number, numerical values, amounts, and ranges of the constituent elements of the embodiment are mentioned, when it is clearly stated that they are particularly essential, and in principle, the number is clearly limited to a specific number. It is not limited to the specific number except when it is done. In addition, in each of the above embodiments, when referring to the material, shape, positional relationship, etc. of the components, etc., except when specifically specified or when the material, shape, positional relationship, etc. are limited in principle. , The material, shape, positional relationship, etc. are not limited.

(Summary)
According to the first aspect shown in a part or all of the above-described embodiments, the air conditioner for a vehicle mounted on a vehicle forms a suction side air passage and an outlet side air passage through which air flows. It is equipped with members. Further, it is provided with a blower fan arranged in the case member. Further, in the case member, on the suction side of the blower fan, a suction side partition member for partitioning the suction side air passage into the first suction side air passage and the second suction side air passage is arranged. Further, in the case member, on the blowing side of the blower fan, a blowing side partition member for partitioning the blowing side air passage into the first blowing side air passage and the second blowing side air passage is arranged. Further, the suction side partition member and the blowout side partition member are arranged so that the relative position of the blowout side partition member with respect to the suction side partition member is displaced in the direction around the rotation axis of the blower fan. Further, the blower fan blows the air sucked from the first suction side air passage to the first blow side air passage and blows the air sucked from the second suction side air passage to the second blow side air passage. The case members include a first opening for introducing outside air outside the vehicle interior into the first suction side air passage, a second opening for introducing inside air inside the vehicle interior into the first suction side air passage, and outside the vehicle interior. A third opening for introducing the outside air into the second suction side air passage and a fourth opening for introducing the inside air in the vehicle interior into the second suction side air passage are formed.

Further, according to the second viewpoint, the second opening and the fourth opening are respectively arranged on the left and right surfaces of the case member in the vehicle. Further, the first opening and the third opening are arranged on the upper surface of the vehicle than the second opening and the fourth opening arranged on the case member, respectively.

Therefore, the arrangement space of the outside air introduction duct connected to the first opening 131 and the third opening 133 can be reduced. Further, since the length of the outside air introduction duct can be shortened, the pressure loss of the outside air introduced into the air conditioning unit can be reduced.

Further, according to the third viewpoint, the first opening and the third opening are respectively arranged on the left-right surface of the case member in the vehicle. Further, the second opening and the fourth opening are arranged on the upper surface of the vehicle than the second opening and the fourth opening arranged on the case member, respectively.

In this way, the first opening and the third opening are arranged on the left-right surface of the vehicle of the case member, respectively, and the second opening and the fourth opening are arranged on the case member, respectively. It can also be placed on the upper surface of the vehicle than the portion and the fourth opening.

Further, according to the fourth viewpoint, the first door that opens and closes the first opening, the second door that opens and closes the second opening, the third door that opens and closes the third opening, and the fourth opening. It is equipped with a fourth door that opens and closes.

Therefore, by controlling the opening and closing of the first to fourth doors according to the specifications of the vehicle, for example, even if the driver's seat is arranged on the right side of the vehicle, the driver's seat is arranged on the left side of the vehicle. Even so, the desired outside air and inside air can be introduced into the first suction side air passage and the second suction side air passage.

10 Vehicle air conditioning unit 12 Air conditioning case 13 Inside / outside air case 16 Evaporator 18 Heater core 20 Blower 121 1st suction side air passage 122 2nd suction side air passage 123 1st blow side air passage 124 2nd blow side air passage 125 Suction side Partition member 126 Blow-out side partition member 131 1st opening 132 2nd opening 133 3rd opening 134 4th opening 141 1st door 142 2nd door 143 3rd door 144 4th door

Claims (4)

It is a vehicle air conditioner installed in a vehicle.
Case members (12, 13) forming the suction side air passages (121, 122) and the outlet side air passages (123, 124) through which air flows, and
A blower fan (201) arranged in the case member is provided.
On the suction side of the blower fan in the case member, a suction side partition member (125) that partitions the suction side air passage into a first suction side air passage (121) and a second suction side air passage (122) is arranged. Being done
In the case member, on the blowing side of the blower fan, a blowing side partition member (126) that partitions the blowing side air passage into a first blowing side air passage (123) and a second blowing side air passage (124) is arranged. Being done
The suction side partition member and the blowout side partition member are arranged so that the relative position of the blow side partition member with respect to the suction side partition member is displaced in the direction around the rotation axis of the blower fan.
The blower fan blows the air sucked from the first suction side air passage to the first blow side air passage and blows the air sucked from the second suction side air passage to the second blow side air passage. ,
The case member has a first opening (131) for introducing the outside air outside the vehicle interior into the first suction side air passage, and a second opening (131) for introducing the inside air inside the vehicle interior into the first suction side air passage. 132), a third opening (133) for introducing the outside air outside the vehicle interior into the second suction side air passage, and a fourth opening (133) for introducing the inside air inside the vehicle interior into the second suction side air passage. 134) and the vehicle air conditioner in which. The second opening and the fourth opening are respectively arranged on the left-right surface of the case member of the vehicle.
The first aspect of claim 1, wherein the first opening and the third opening are arranged on the upper surface of the vehicle than the second opening and the fourth opening arranged in the case member, respectively. The vehicle air conditioner described. The first opening and the third opening are respectively arranged on the left-right surface of the case member of the vehicle.
According to claim 1, the second opening and the fourth opening are arranged on the upper surface of the vehicle than the second opening and the fourth opening arranged on the case member, respectively. The vehicle air conditioner described. A first door (141) that opens and closes the first opening, a second door (142) that opens and closes the second opening, a third door (143) that opens and closes the third opening, and the first door. 4. The vehicle air conditioner according to any one of claims 1 to 3, further comprising a fourth door (144) that opens and closes an opening.

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