WO2016166957A1 - 車両用空調ユニット - Google Patents
車両用空調ユニット Download PDFInfo
- Publication number
- WO2016166957A1 WO2016166957A1 PCT/JP2016/001957 JP2016001957W WO2016166957A1 WO 2016166957 A1 WO2016166957 A1 WO 2016166957A1 JP 2016001957 W JP2016001957 W JP 2016001957W WO 2016166957 A1 WO2016166957 A1 WO 2016166957A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- passage
- case
- air conditioning
- recess
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H1/00514—Details of air conditioning housings
- B60H1/00521—Mounting or fastening of components in housings, e.g. heat exchangers, fans, electronic regulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00664—Construction or arrangement of damper doors
- B60H1/00671—Damper doors moved by rotation; Grilles
- B60H1/00678—Damper doors moved by rotation; Grilles the axis of rotation being in the door plane, e.g. butterfly doors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H1/00064—Air flow details of HVAC devices for sending air streams of different temperatures into the passenger compartment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
- B60H1/00021—Air flow details of HVAC devices
- B60H2001/00078—Assembling, manufacturing or layout details
- B60H2001/00092—Assembling, manufacturing or layout details of air deflecting or air directing means inside the device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
- B60H2001/006—Noise reduction
Definitions
- This disclosure relates to a vehicle air-conditioning unit that blows air-conditioned air into a passenger compartment.
- an air-conditioning unit included in a vehicle air-conditioning device described in Patent Document 1 is known.
- the air conditioning unit described in Patent Document 1 includes two openings and a pivoting door that opens and closes one of the two openings.
- the other opening of the two openings is a normally open opening that is not opened or closed by the door.
- the rotating shaft of the door is disposed between the two openings.
- a notch corresponding to the other opening is provided in the vicinity of the rotation shaft of the door so that the other opening is not blocked wherever the door is located.
- the wind direction plate corresponding to the notch protrudes from the air conditioning case so that the conditioned air does not enter the recess caused by the notch, and the recess is covered with a lid. is doing.
- This wind direction plate is provided integrally with the air conditioning case.
- Patent Document 1 since the wind smoothly flows into the other opening, there is no turbulence in the wind flow, and generation of low-frequency booming noise (noise) can be suppressed.
- the wind direction plate is integrally formed with the air conditioning case. That is, the depression that disturbs the air flow is covered by a part of the air conditioning case, thereby reducing the air flow turbulence.
- a recess that disturbs the air flow may be formed by a part of the air conditioning case.
- the noise countermeasure described in Patent Document 1 in which a recess is covered with a part of the air conditioning case may not be performed.
- the present disclosure uses a member that guides air flowing in an air conditioning case, and can reduce noise caused by air flow turbulence caused by a depression formed in the air conditioning case.
- the purpose is to provide units.
- the vehicle air conditioning unit of the present disclosure includes an air conditioning case and a case internal member.
- the air conditioning case forms a case passage that allows air to flow into the vehicle interior, and has a hollow portion that is provided in the middle of the case passage and has a hollow.
- the case inner member has a guide portion that guides air flowing through the case passage, and a lid portion that is disposed in the recess, and is disposed in the case passage. The lid portion suppresses inflow of air flowing through the case passage into the hollow.
- the case inner member arranged in the case passage has the guide portion for guiding the air flowing through the case passage and the lid portion arranged in the depression. Since the lid portion suppresses the inflow of air flowing through the case passage into the depression, the air flow in the case passage can be prevented from being disturbed by the depression. Therefore, the noise resulting from the turbulence of the air flow due to the depression can be reduced by using the case inner member.
- FIG. 1 is a cross-sectional view showing a schematic configuration of a vehicle air conditioning unit 10 in the present embodiment.
- FIG. 1 is a cross-sectional view of the vehicle air conditioning unit 10 in a cross section orthogonal to the vehicle width direction DR3 (see FIG. 3).
- up and down front and rear arrows DR1 and DR2 indicate directions of a vehicle on which the vehicle air conditioning unit 10 is mounted. That is, assuming that the traveling direction of the vehicle is forward, the arrow DR1 in FIG. 1 indicates the vertical direction DR1 of the vehicle, the arrow DR2 indicates the longitudinal direction DR2 of the vehicle, and the arrow DR3 in FIG. Direction).
- the up-down direction DR1, the front-rear direction DR2, and the width direction DR3 are orthogonal to each other.
- the vehicle air conditioning unit 10 shown in FIG. 1 constitutes a part of a vehicle air conditioner including a compressor, a condenser, and the like disposed outside the passenger compartment of the vehicle.
- the vehicle air conditioning unit 10 is disposed inside the interior panel in the vehicle interior.
- the vehicle air-conditioning unit 10 is a rear-seat air-conditioning unit that performs air-conditioning on a rear-seat occupant seated in a rear seat disposed behind the front seat including the driver seat and the passenger seat.
- the vehicle air conditioning unit 10 includes an air conditioning case 12, an evaporator 16, a heater core 18, an air mix door 20, an outlet door 22, a grid member 24, and a blower unit 26.
- the blower unit 26 is a centrifugal blower that is connected to the upstream side in the air flow direction of the air conditioning case 12 and blows air into the air conditioning case 12.
- the blower unit 26 includes a blower case 261, a centrifugal fan 262, and a fan motor 263.
- the blower case 261 is connected to the air conditioning case 12.
- the centrifugal fan 262 is accommodated in the blower case 261, and sucks and blows out air by rotating.
- the fan motor 263 rotates the centrifugal fan 262.
- the blower unit 26 blows air toward the evaporator 16 accommodated in the air conditioning case 12 as indicated by an arrow FLin by the rotation of the centrifugal fan 262.
- the air conditioning case 12 is a resin member and constitutes the outer shell of the vehicle air conditioning unit 10 together with the blower case 261.
- the air conditioning case 12 forms a case passage 121 as an air passage through which air flows into the passenger compartment inside the air conditioning case 12. Further, the case passage 121 is subdivided by a structure provided in the air conditioning case 12. That is, the case passage 121 has an upstream air passage 122, a hot air passage 123 as a first air passage, a cold air passage 124 as a second air passage, and an air mix space 125.
- the upstream air passage 122 is connected to the blower outlet of the blower unit 26 on the upstream side in the air flow direction of the upstream air passage 122, and the hot air passage 123 and the cold air on the downstream side in the air flow direction of the upstream air passage 122. It is connected to the passage 124. That is, the hot air passage 123 and the cold air passage 124 are connected in parallel to each other on the downstream side of the upstream air passage 122 in the air flow direction. Therefore, the cold air passage 124 is a bypass air passage through which the air from the upstream air passage 122 flows through the hot air passage 123. In the present embodiment, the cold air passage 124 is disposed above the hot air passage 123.
- the air mix space 125 is a space connected to the downstream side of the hot air passage 123 in the air flow direction and the downstream side of the cold air passage 124 in the air flow direction. Therefore, the air passing through the hot air passage 123 and the air passing through the cold air passage 124 are mixed with each other in the air mix space 125.
- the evaporator 16 constitutes a well-known refrigeration cycle apparatus that circulates refrigerant together with a compressor, a condenser, and an expansion valve (not shown).
- the evaporator 16 cools the air passing through the evaporator 16 by evaporation of the refrigerant.
- the evaporator 16 is disposed in the upstream air passage 122. That is, the evaporator 16 is a cooling heat exchanger that cools the air flowing through the upstream air passage 122, in other words, a cooler. Therefore, the evaporator 16 cools the air flowing from the blower unit 26 into the upstream air passage 122 as indicated by the arrow FLin, and flows the cooled air to one or both of the hot air passage 123 and the cold air passage 124.
- the evaporator 16 is disposed in the upstream air passage 122 so that all of the air flowing through the upstream air passage 122 passes through the evaporator 16.
- the structure of the evaporator 16 is a well-known evaporator generally used in a vehicle air conditioner. Specifically, the evaporator 16 has a core part 161 and a first header tank part 162 and a second header tank part 163 connected to both ends of the core part 161, respectively.
- the evaporator 16 is provided in the upstream air passage 122 so that the first header tank portion 162 is positioned above the second header tank portion 163. That is, the first header tank portion 162 is the upper end portion of the evaporator 16, and the second header tank portion 163 is the lower end portion of the evaporator 16.
- the core portion 161 of the evaporator 16 has a plurality of refrigerant tubes and a plurality of corrugated fins.
- the plurality of refrigerant tubes communicate with the header tank portions 162 and 163, respectively, and have a flat cross-sectional shape.
- the plurality of corrugated fins are provided between the plurality of refrigerant tubes and have a wave shape.
- the core portion 161 has a structure in which refrigerant tubes and corrugated fins are alternately stacked in the width direction DR3 (see FIG. 3).
- the refrigerant tube of the evaporator 16 is disposed to be inclined with respect to the vertical direction DR1.
- the heater core 18 is disposed in the hot air passage 123. That is, the heater core 18 is a heating heat exchanger that heats the air that flows out of the evaporator 16 and flows through the hot air passage 123 with engine cooling water that is hot water, in other words, a heater.
- the heater core 18 is disposed in the hot air passage 123 so that all of the air flowing through the hot air passage 123 passes through the heater core 18.
- the structure of the heater core 18 is a well-known heat exchanger for heating generally used in a vehicle air conditioner.
- the heater core 18 has a core portion 181 and a first header tank portion 182 and a second header tank portion 183 connected to both ends of the core portion 181.
- the heater core 18 is provided in the hot air passage 123 so that the first header tank portion 182 is located above the second header tank portion 183. That is, the first header tank portion 182 is the upper end portion of the heater core 18, and the second header tank portion 183 is the lower end portion of the heater core 18.
- the core portion 181 of the heater core 18 has a plurality of hot water tubes and a plurality of corrugated fins.
- the plurality of hot water tubes communicate with the header tank portions 182 and 183, respectively, and have a flat cross-sectional shape.
- the plurality of corrugated fins are provided between the hot water tubes and have a wave shape.
- the core portion 181 has a structure in which hot water tubes and corrugated fins are alternately stacked in the width direction DR3 (see FIG. 3). With such a structure, the air flowing into the core portion 181 passes through the core portion 181 while being heated.
- the hot water tube of the heater core 18 is disposed to be inclined with respect to the vertical direction DR1.
- the air conditioning case 12 has a tank support wall 126 for supporting the first header tank portion 182 of the heater core 18 in the air conditioning case 12.
- the tank support wall 126 is disposed around the first header tank portion 182 so as to surround the first header tank portion 182.
- the tank support wall 126 has a U-shape that opens toward the hot air passage 123 in a cross section orthogonal to the width direction DR3. That is, the tank support wall 126 forms a concave space 126 a that opens toward the hot air passage 123.
- the first header tank portion 182 is supported by the tank support wall 126 by being fitted into the concave space 126 a and is positioned with respect to the air conditioning case 12.
- the second header tank portion 183 of the heater core 18 is also positioned with respect to the air conditioning case 12 in the same manner as the first header tank portion 182 described above.
- the heater core 18 is fixed to the air conditioning case 12 by positioning the first header tank portion 182 and the second header tank portion 183 with respect to the air conditioning case 12.
- the air mix door 20 is a rotary door disposed in the air conditioning case 12. Specifically, the air mix door 20 is a passage door that opens and closes the hot air passage 123 and the cold air passage 124, and is rotated by an electric actuator (not shown).
- the air mix door 20 includes a rotation shaft 201 having the width direction DR3 as an axial direction, and a flat plate-like door portion 202 connected to the rotation shaft 201.
- the air mix door 20 rotates about the rotation shaft 201 as indicated by an arrow AR1, so that the hot air passage 123 and the cold air passage 124 are made upstream of each air flow direction by the plate-like door portion 202. Open and close at.
- the air conditioning case 12 has a rotation shaft surrounding wall 127 (a wall around the rotation shaft) in the air conditioning case 12 that forms a concave space 127 a that receives the rotation shaft 201 of the air mix door 20.
- the rotation shaft surrounding wall 127 is a wall extending from the tank support wall 126. That is, the tank support wall 126 and the rotation shaft surrounding wall 127 are integrally formed.
- the wall constituted by the tank support wall 126 and the rotating shaft surrounding wall 127 also serves as a partition wall that separates the hot air passage 123 and the cool air passage 124.
- the rotation shaft surrounding wall 127 has an arc shape surrounding the rotation shaft 201 in a cross section orthogonal to the rotation shaft 201 of the air mix door 20.
- One end 127b in the circumferential direction of the rotation shaft 201 of the rotation shaft surrounding wall 127 abuts on the air mix door 20 when the air mix door 20 is in a maximum heating position described later, thereby the rotation shaft surrounding wall 127 and One sealing surface that seals between the air mix door 20 is formed.
- the other end 127c in the circumferential direction of the rotation shaft 201 of the rotation shaft surrounding wall 127 abuts on the air mix door 20 when the air mix door 20 is in a maximum cooling position described later, and thereby the rotation shaft surrounding wall.
- the other sealing surface which seals between 127 and the air mix door 20 is formed.
- the air mix door 20 that rotates as indicated by the arrow AR1 adjusts the air volume ratio between the air flowing through the hot air passage 123 and the air flowing through the cool air passage 124 according to the rotation position. Specifically, the air mix door 20 opens the hot air passage 123 from the maximum cooling position where the hot air passage 123 is fully closed and the cold air passage 124 is fully opened, and is the maximum that fully closes the cold air passage 124. It is continuously rotated up to the heating position. In FIG. 2, the air mix door 20 in the maximum cooling position is displayed.
- the maximum cooling position of the air mix door 20 is also called the max cool position.
- the air mix door 20 When the air mix door 20 is located at the maximum cooling position, the entire amount of air that has passed through the evaporator 16 flows to the cool air passage 124. In other words, the air mix door 20 is positioned at the maximum cooling position during maximum cooling when the vehicle air conditioning unit 10 is most powerfully cooled.
- the maximum heating position of the air mix door 20 is also called the max hot position.
- the air mix door 20 is positioned at the maximum heating position, the entire amount of air that has passed through the evaporator 16 flows to the hot air passage 123.
- the air mix door 20 is positioned at the maximum heating position during the maximum heating when the vehicle air conditioning unit 10 is heated most strongly.
- the air that has passed through the evaporator 16 is heated with the air volume ratio according to the rotation position of the air mix door 20. It flows to the passage 123 and the cold air passage 124, respectively. Then, the hot air heated by the heater core 18 through the hot air passage 123 and the cold air passing through the cold air passage 124 are formed in the air conditioning case 12 so that the hot air passage 123 and the cold air passage 124 merge. They are mixed at 125 and blown out into the passenger compartment. Therefore, the temperature of the air flowing into the air conditioning case 12 as indicated by the arrow FLin (see FIG. 1) is adjusted according to the rotational position of the air mix door 20 and blown out into the vehicle interior.
- the air conditioning case 12 has a hollow portion 128 provided in the middle of the case passage 121 and formed with a hollow 128a.
- the recess 128 a is defined by the tank support wall 126 and the rotation shaft surrounding wall 127. Therefore, the recess 128 overlaps a part of the tank support wall 126 and a part of the rotation shaft surrounding wall 127. In other words, the recess 128 is formed integrally with the tank support wall 126 and the rotation shaft surrounding wall 127.
- the recess 128a is open to the cold air passage 124 in the case passage 121, and extends in a groove shape in a direction intersecting with the air flow direction in the cold air passage 124 indicated by an arrow FC1 (the longitudinal direction of the recess). ing.
- the longitudinal direction of the recess is oriented along the axial direction of the rotation shaft 201 of the air mix door 20.
- the shape of the recess 128a is V-shaped open to the cold air passage 124 in a cross section orthogonal to the longitudinal direction of the recess.
- the recess 128 a is formed on the opposite side of the tank support wall 126 from the first header tank portion 182 side by the tank support wall 126 and the rotation shaft surrounding wall 127. More specifically, in the cross section orthogonal to the axial direction of the rotation shaft 201 of the air mix door 20, that is, the cross section shown in FIG. 2, the recess 128a is the first header tank portion 182 side across the tank support wall 126. It is formed on the opposite side and on the opposite side to the rotation shaft 201 side with the rotation shaft surrounding wall 127 interposed therebetween.
- the air conditioning case 12 is formed with a plurality of air outlets 131 and 132 for blowing out temperature-controlled conditioned air.
- the plurality of air outlets 131 and 132 are all connected to the air mix space 125, and the conditioned air passing through the air mix space 125 passes through one or both of the plurality of air outlets 131 and 132. Blown out.
- the plurality of air outlets 131 and 132 are a face outlet 131 that blows air-conditioned air toward the upper body of the rear seat occupant in the vehicle interior, and a foot that blows air-conditioned air toward the feet of the rear seat occupant. This is the air outlet 132.
- the air outlet door 22 is a rotary door similar to the air mix door 20 described above, and is rotated by an electric actuator (not shown).
- the air outlet door 22 is disposed upstream of the face air outlet 131 and the foot air outlet 132 in the air flow direction.
- the air outlet door 22 is arranged to rotate in the air mix space 125.
- the blowout door 22 has a rotation shaft 221 with the width direction DR3 as an axial direction, and a flat plate-like door portion 222 connected to the rotation shaft 221. And the blower outlet door 22 opens and closes the face blower outlet 131 and the foot blower outlet 132 by the plate-shaped door part 222 by rotating centering around the rotating shaft 221 like arrow AR2.
- the rotational position of the blowout door 22 is determined for each of a plurality of blowout modes that are alternatively realized in the vehicle air conditioning unit 10. For example, when the blowing mode of the vehicle air conditioning unit 10 is a face mode in which the conditioned air is blown exclusively from the face outlet 131, the outlet door 22 opens the face outlet 131 to the maximum and the foot outlet 132. The face mode position is closed. In FIG. 1, the outlet door 22 in the face mode position is displayed.
- the blowout mode of the vehicle air conditioning unit 10 is a foot mode in which the conditioned air is blown exclusively from the foot blower outlet 132
- the blower outlet door 22 closes the face blower outlet 131 and the foot blower outlet 132. It is positioned in the foot mode position that opens to the maximum.
- the blowout mode of the vehicle air-conditioning unit 10 is a bi-level mode in which conditioned air is blown from both the face blowout port 131 and the foot blowout port 132
- the blowout door 22 has the face mode position and the foot. It is positioned at a bi-level mode position that is an intermediate position between the mode position.
- the hot air from the hot air passage 123 and the cold air from the cold air passage 124 are mixed with each other in the air mix space 125.
- the hot air and the cold air are not mixed uniformly, and temperature unevenness occurs in the air mix space 125.
- the cold air passage 124 is arranged on the upper side with respect to the hot air passage 123, the temperature distribution of the air in the air mix space 125 becomes lower as it goes upward.
- the face blower outlet 131 is arrange
- the temperature becomes low, and a temperature difference is generated between both blown airs. For example, if the temperature difference of the blown air becomes too large, the comfort of the rear seat occupant may be impaired. Further, it is preferable to reduce the temperature unevenness of the blown air in the face mode and the foot mode.
- the grid member 24 increases the mixing of the hot air from the hot air passage 123 and the cold air from the cold air passage 124. It is provided to ensure temperature control performance for the blown air.
- the grid member 24 is disposed across the cold air passage 124 and the air mix space 125 in the case passage 121.
- the grid member 24 is an in-case member (in-case arrangement member) arranged in the air conditioning case 12.
- FIG. 3 is a perspective view showing the grid member 24 as a single unit.
- the grid member 24 has a guide portion 241 for guiding the air flowing through the case passage 121, and a lid portion 242 disposed in the recess 128a.
- the lid portion 242 is formed integrally with the guide portion 241.
- the grid member 24 is made of resin, and the guide portion 241 and the lid portion 242 are integrally formed.
- the guide portion 241 of the grid member 24 includes a tunnel forming portion 243 that forms a hot air tunnel passage 243a in order to guide the hot air from the hot air passage 123.
- the tunnel forming portion 243 has a flat cross-sectional shape along the air flow direction in the cold air passage 124 indicated by the arrow FC1, and is disposed at an intermediate position in the width direction DR3 in the cold air passage 124 and the air mix space 125. Yes.
- the upstream end of the hot air tunnel passage 243a in the air flow direction opens toward the downstream end of the hot air passage 123 in the air flow direction.
- the downstream end of the hot air tunnel passage 243a in the air flow direction opens at a position closer to the upper side of the air mix space 125.
- FIG. 2 the shape of the grid member 24 in a cross section passing through the hot air tunnel passage 243a is illustrated.
- the tunnel forming portion 243 Due to the arrangement of the tunnel forming portion 243, a part of the hot air from the hot air passage 123 passes through the hot air tunnel passage 243a as indicated by an arrow FH1, and is guided to the upper side in the air mix space 125. It is burned. Then, the cold air from the cold air passage 124 passes through both sides of the tunnel forming portion 243 in the width direction DR3 as indicated by arrows FC1 and FC2. At the same time, of the warm air from the warm air passage 123, the warm air deviated from the warm air tunnel passage 243a flows on both sides of the tunnel forming portion 243 in the width direction DR3 as indicated by the arrow FH2.
- the lid portion 242 of the grid member 24 is disposed so as to close the depression 128a from the cold air passage 124 side with respect to the depression 128a.
- the depression 128a may not be closed so as to be sealed, and a gap may be provided between the depression 128a and the lid 242.
- the lid portion 242 is arranged so as to close the depression 128a in this way, thereby suppressing the inflow of the air flowing through the cold air passage 124 into the depression 128a.
- the lid portion 242 is also formed so as to extend in the longitudinal direction of the recess.
- the cover part 242 has the boss
- Two bosses 244 of the lid portion 242 are provided and form a pair facing each other.
- the guide portion 241 of the grid member 24 also has a boss 245 similar to the boss 244 of the lid portion 242. Two bosses 245 of the guide portion 241 are also provided, and face each other to form a pair.
- the pair of bosses 244 of the lid portion 242 are disposed at positions close to the upstream side in the air flow direction in the case passage 121 in the entire grid member 24.
- the pair of bosses 245 of the guide portion 241 are arranged at positions close to the downstream side in the air flow direction in the case passage 121 in the entire grid member 24.
- each of the bosses 244 and 245 of the grid member 24 is a fitting portion that is fitted to the air conditioning case 12, and specifically, is fitted into a fitting hole of the air conditioning case 12. Thereby, the grid member 24 is fixed in the air conditioning case 12. That is, the two pairs of bosses 244 and 245 of the grid member 24 function as positioning portions that restrain the position of the grid member 24 with respect to the air conditioning case 12.
- the grid member 24 disposed in the air conditioning case 12 includes the guide portion 241 that guides the air flowing through the case passage 121, and the air conditioning case 12. And a lid 242 disposed in the recess 128a.
- the lid portion 242 of the grid member 24 is disposed so as to close the recess 128a, thereby suppressing the inflow of the air flowing through the cold air passage 124 into the recess 128a.
- the cold air passage 124 flows as shown in FIG.
- the air flow is separated from the rotating shaft surrounding wall 127.
- FCsw in the recess 128a.
- FIG. 4 is an enlarged view of the IV portion of FIG. 2, and is a view showing an air flow around the depression 128 a when it is assumed that there is no lid portion 242 of the grid member 24.
- the cold air passage 124 provided with the recess 128a is compared with, for example, the hot air passage 123
- the cold air passage 124 is not provided with an element corresponding to the heater core 18 that provides air flow resistance. Therefore, air easily passes through the cool air passage 124, and the cool air passage 124 tends to generate blowing noise as compared with the hot air passage 123.
- the lid portion 242 of the grid member 24 closes the recess 128a that is likely to cause air blowing noise by being open with respect to the cold air passage 124, so that the lid portion 242 effectively blows air. Noise can be reduced.
- FIG. 5 and 7 are diagrams showing simulation results in the first comparative example in which the grid member 24 does not have the lid portion 242 and the recess 128a remains open toward the cold air passage 124.
- FIG. 5 shows the direction of the air flow (wind direction) around the depression 128a in the cold air passage 124 by arrows.
- FIG. 7 is a distribution diagram showing the sound source intensity of the blowing noise around the recess 128a in the cold air passage 124. As shown in FIG.
- FIGS. 6 and 8 are diagrams showing simulation results in this embodiment.
- FIG. 6 shows the direction (wind direction) of the air flow around the depression 128a in the cold air passage 124 by arrows.
- FIG. 8 is a distribution diagram showing the sound source intensity of the blowing noise around the recess 128a in the cold air passage 124. As shown in FIG.
- FIGS. 5 to 8 is an enlarged view in which the IV portion of FIG. 2 is enlarged.
- the air flow around the recess 128a in the first comparative example, as shown in FIG. 5, the air flow is separated from the rotating shaft surrounding wall 127 due to the presence of the recess 128a. As a result, the air flow in the cool air passage 124 is disturbed around the recess 128a and the recess 128a.
- the lid portion 242 of the grid member 24 blocks the recess 128 a, thereby eliminating the air flow separation shown in FIG. 5.
- the sound source intensity increases around the depression 128a and the depression 128a.
- the maximum is 48 dB.
- the sound source intensity is reduced in comparison with the first comparative example (comparison with FIG. 7) around the recess 128 a and the recess 128 a.
- the maximum is 16 dB in the A1 range, and the sound source intensity is significantly smaller than that of the first comparative example.
- the air flow turbulence is suppressed and the blowing noise is reduced around the recess 128a in the air conditioning case 12 and the recess 128a. Yes.
- FIG. 9 is a view showing a second comparative example for explaining the effect of the present embodiment, and corresponds to an enlarged view in which an IV portion of FIG. 2 is enlarged.
- a closing wall 134 is integrally connected to the tank support wall 126 and the rotating shaft surrounding wall 127 so as to close the recess 128 a in the air conditioning case 12. Yes.
- the mold in order to mold the recess 128a surrounded by the tank support wall 126, the rotation shaft surrounding wall 127, and the closing wall 134 with a mold, the mold is arranged in the longitudinal direction of the recess. It becomes an elongated shape. As a result, the mold corresponding to the recess 128a is long and easy to break, and the durability of the mold may be reduced.
- FIG. 10 is a view showing a third comparative example for explaining the effect of the present embodiment, and corresponds to an enlarged view in which an IV portion in FIG. 2 is enlarged.
- the positions of the heater core 18 and the tank support wall 126 are not changed as compared with the present embodiment, but the position of the air mix door 20 is shifted downward, The position of the rotation shaft surrounding wall 127 is also shifted downward in accordance with the air mix door 20. Therefore, the recess 128a as in the present embodiment is not formed, and unevenness is eliminated on the surface of the tank support wall 126 and the rotation shaft surrounding wall 127 on the cold air passage 124 side.
- the blowing noise can be reduced only when the position of the rotation shaft 201 of the air mix door 20 can be shifted downward.
- the size of the plate-like door portion 202 of the air mix door 20 is increased by the amount of shifting the position of the rotating shaft 201. It is assumed that a sufficient margin for expanding the outer shape of the air conditioning case 12 to the lower side is sufficiently ensured even under the restrictions when the vehicle is mounted.
- the heating capacity and the amount of air passing through the hot air passage 123 are sufficient. It is assumed that there is a margin that can be secured.
- the lid portion 242 of the grid member 24 is formed integrally with the guide portion 241.
- the lid 242 can be attached at the same time by performing the operation of attaching the grid member 24 to the air conditioning case 12, and the number of work steps can be prevented from increasing.
- the lid portion 242 of the grid member 24 has the boss 244 that restrains the position of the grid member 24 with respect to the air conditioning case 12 at the tip 242 a of the lid portion 242. Therefore, the lid 242 can have both the function of positioning the grid member 24 and the function of reducing blowing noise. As a result, for example, the grid member 24 can be made more compact than the case where the positioning function is provided separately from the lid 242.
- the guide portion 241 and the lid portion 242 of the grid member 24 are integrally formed, it is not necessary to prepare parts separately from the grid member 24 in order to reduce blowing noise. As a result, an increase in the number of parts constituting the vehicle air conditioning unit 10 can be suppressed.
- the lid portion 242 of the grid member 24 is disposed so as to close the recess 128a, and in FIG. 2, the entire recess 128a is closed so as to be substantially filled.
- the lid 242 may be closed only to the extent that the depth of the recess 128a is reduced.
- the lid portion 242 of the grid member 24 protrudes from the tunnel forming portion 243 to both sides in the width direction DR3.
- the triangular reinforcing ribs 247 indicated by the two-dot chain line in FIG. 3 have the lid portion 242 and the tunnel forming portion on both sides in the width direction DR 3 across the tunnel forming portion 243. It may be provided at a joint portion with H.243.
- the vehicle air-conditioning unit 10 shown in FIG. 1 is specifically a rear-seat air-conditioning unit, but is not limited to the rear-seat air-conditioning unit. It may be arranged.
- the vehicle air-conditioning unit 10 may be an air-conditioning unit that is disposed in front of the vehicle interior and blows out conditioned air from an instrument panel.
- the recess 128 a in the air conditioning case 12 is provided in the cold air passage 124.
- the recess 128a may be provided at any location in the case passage 121.
- the vehicle air conditioning unit 10 includes the evaporator 16. However, if the vehicle air conditioning unit 10 is used in an environment where it is not necessary to cool the air introduced into the air conditioning case 12, for example, the evaporator 16 may be omitted.
- the material when referring to the material, shape, positional relationship, etc. of the component, the material, unless otherwise specified and in principle limited to a specific material, shape, positional relationship, etc. However, it is not limited to the shape, positional relationship, and the like.
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
図1は、本実施形態において、車両用空調ユニット10の概略構成を示す断面図である。この図1は、車両用空調ユニット10を車両の幅方向DR3(図3参照)に直交する断面における断面図である。図1において上下前後の各矢印DR1、DR2は、車両用空調ユニット10が搭載される車両の向きを示す。すなわち、車両の進行方向を前方として、図1の矢印DR1は車両の上下方向DR1を示し、矢印DR2は車両の前後方向DR2を示し、後述する図3の矢印DR3は幅方向DR3(車両の左右方向)を示している。上下方向DR1、前後方向DR2、および、幅方向DR3は互いに直交する。
(1)上述の実施形態において、グリッド部材24の蓋部242は窪み128aを塞ぐように配置されており、図2では窪み128a全体が略埋まるように塞がれている。しかしながら、その蓋部242は、窪み128aの窪み深さを浅くする程度に塞ぐだけでも構わない。
Claims (9)
- 車室内に向けて空気を流すケース通路(121)を形成し、該ケース通路の途中に設けられると共に窪み(128a)が形成された窪み部(128)を有する空調ケース(12)と、
前記ケース通路を流れる空気を案内する案内部(241)、および前記窪みに配置される蓋部(242)を有し、前記ケース通路に配置されたケース内部材(24)と、を備え、
前記蓋部は、前記ケース通路を流れる空気の前記窪みへの流入を抑える車両用空調ユニット。 - 前記蓋部は、前記案内部と一体に形成されている請求項1に記載の車両用空調ユニット。
- 前記蓋部は、前記窪みを塞ぐように配置されて、前記ケース通路を流れる空気の前記窪みへの流入を抑える請求項1または2に記載の車両用空調ユニット。
- 空気を加熱する加熱用熱交換器(18)を備え、
前記ケース通路は、
前記加熱用熱交換器が配置された温風通路(123)と、
該温風通路を迂回させて空気を流す迂回空気通路(124)と、を有し、
前記窪みは前記迂回空気通路に対して開いており、
前記蓋部は、前記窪みを塞ぐように配置されて、前記迂回空気通路を流れる空気の前記窪みへの流入を抑える請求項1または2に記載の車両用空調ユニット。 - 前記加熱用熱交換器は、
前記温風通路を流れる空気が内部を通過し、当該空気を加熱するコア部(181)と、
該コア部に接続されたタンク部(182)と、を有し、
前記空調ケースはその内部に、前記タンク部まわりに配置され該タンク部を支持するタンク支持壁(126)を有し、
前記窪み部は前記タンク支持壁と重複する位置に形成されており、
前記窪みは、前記タンク支持壁の前記タンク部側とは反対側に形成されている請求項4に記載の車両用空調ユニット。 - 回動軸(201)を有し、該回動軸を中心に回動することで前記温風通路を開閉する通路ドア(20)を備え、
前記加熱用熱交換器は、
前記温風通路を流れる空気が内部を通過し、当該空気を加熱するコア部(181)と、
該コア部に接続されたタンク部(182)と、を有し、
前記空調ケースはその内部に、
前記タンク部まわりに配置され該タンク部を支持するタンク支持壁(126)と、
前記タンク支持壁から延設されて、前記回動軸を収容する凹空間(127a)を形成する回動軸囲壁(127)と、を有し、
前記窪み部は前記タンク支持壁および前記回動軸囲壁と重複する位置に形成されており、
前記窪みは、前記タンク支持壁および前記回動軸囲壁によって、前記タンク支持壁の前記タンク部側とは反対側に形成されている請求項4に記載の車両用空調ユニット。 - 前記窪みは、前記迂回空気通路内の空気流れ方向に交差する窪み長手方向へ溝状に延びており、
前記蓋部は前記窪み長手方向へ延びると共に、前記空調ケースに対して前記ケース内部材の位置を拘束する位置決め部(244)を有する前記窪み長手方向における先端(242a)を含んでいる請求項4ないし6のいずれか1つに記載の車両用空調ユニット。 - 前記蓋部は、前記空調ケースに対して前記ケース内部材の位置を拘束する位置決め部(244)を有している請求項1ないし6のいずれか1つに記載の車両用空調ユニット。
- 前記案内部および前記蓋部は一体成形されている請求項1ないし8のいずれか1つに記載の車両用空調ユニット。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201680010568.9A CN107249911B (zh) | 2015-04-15 | 2016-04-08 | 车辆用空调单元 |
AU2016248421A AU2016248421C1 (en) | 2015-04-15 | 2016-04-08 | Vehicle air-conditioning unit |
DE112016001733.2T DE112016001733T5 (de) | 2015-04-15 | 2016-04-08 | Fahrzeug-Klimatisierungseinheit |
US15/554,162 US10543732B2 (en) | 2015-04-15 | 2016-04-08 | Vehicle air-conditioning unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015-083575 | 2015-04-15 | ||
JP2015083575A JP6269561B2 (ja) | 2015-04-15 | 2015-04-15 | 車両用空調ユニット |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016166957A1 true WO2016166957A1 (ja) | 2016-10-20 |
Family
ID=57125890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/001957 WO2016166957A1 (ja) | 2015-04-15 | 2016-04-08 | 車両用空調ユニット |
Country Status (6)
Country | Link |
---|---|
US (1) | US10543732B2 (ja) |
JP (1) | JP6269561B2 (ja) |
CN (1) | CN107249911B (ja) |
AU (1) | AU2016248421C1 (ja) |
DE (1) | DE112016001733T5 (ja) |
WO (1) | WO2016166957A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019105930A1 (de) * | 2017-11-28 | 2019-06-06 | Valeo Klimasysteme Gmbh | Heizungs-, lueftungs- und/oder klimatisierungsvorrichtung |
US10899193B2 (en) | 2016-02-22 | 2021-01-26 | Denso Corporation | Air conditioning unit for vehicle |
US11027588B2 (en) | 2016-02-22 | 2021-06-08 | Denso Corporation | Air conditioning unit for vehicle |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109642778B (zh) * | 2016-08-01 | 2020-04-21 | 株式会社电装 | 空调单元 |
JP6934274B2 (ja) * | 2017-06-28 | 2021-09-15 | ダイハツ工業株式会社 | 車両用空調装置 |
US11007845B2 (en) | 2018-02-08 | 2021-05-18 | Denso International America, Inc. | Door fixation boss |
DE102021209198A1 (de) | 2021-08-20 | 2023-02-23 | Mahle International Gmbh | Schallemissionsarmer Strömungsdiffusor sowie Klimaanlage mit demselben |
JP2023130860A (ja) * | 2022-03-08 | 2023-09-21 | 株式会社日本クライメイトシステムズ | 車両用空調装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0549417U (ja) * | 1991-12-11 | 1993-06-29 | 株式会社ゼクセル | 車両用空調装置のヒータユニット |
JPH11180136A (ja) * | 1997-12-24 | 1999-07-06 | Suzuki Motor Corp | 車両用空調装置 |
JP2006069388A (ja) * | 2004-09-02 | 2006-03-16 | Sanden Corp | 空調装置 |
JP2007326456A (ja) * | 2006-06-07 | 2007-12-20 | Toyota Auto Body Co Ltd | 空調ダクト |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3678211B2 (ja) * | 2002-05-14 | 2005-08-03 | 株式会社デンソー | 車両用空調装置 |
KR100651685B1 (ko) * | 2003-01-22 | 2006-11-30 | 한라공조주식회사 | 차량용 공기조화장치 |
JP3931818B2 (ja) * | 2003-02-13 | 2007-06-20 | 株式会社デンソー | 車両用空調装置 |
KR101094845B1 (ko) * | 2004-06-18 | 2011-12-15 | 한라공조주식회사 | 차량용 공기 조화 장치 |
JP2006111154A (ja) | 2004-10-15 | 2006-04-27 | Valeo Thermal Systems Japan Corp | 自動車用空調装置 |
JP2006248441A (ja) * | 2005-03-11 | 2006-09-21 | Denso Corp | 車両用空調装置 |
KR101152018B1 (ko) * | 2005-05-20 | 2012-06-08 | 한라공조주식회사 | 센터 마운팅 타입 차량 공조장치 |
JP2008155735A (ja) | 2006-12-22 | 2008-07-10 | Sanden Corp | 車両用空調装置 |
US20110005730A1 (en) * | 2009-07-10 | 2011-01-13 | Keihin Corporation | Vehicular air conditioning apparatus |
KR20150025965A (ko) * | 2013-08-30 | 2015-03-11 | 한라비스테온공조 주식회사 | 차량용 공조장치 |
JP6094453B2 (ja) * | 2013-10-24 | 2017-03-15 | 株式会社デンソー | 空調装置 |
CN104501314B (zh) * | 2014-12-26 | 2017-02-22 | 海信(山东)空调有限公司 | 一种车载空调 |
JP2017094753A (ja) * | 2015-11-18 | 2017-06-01 | 株式会社ヴァレオジャパン | 車両用空調ユニット |
-
2015
- 2015-04-15 JP JP2015083575A patent/JP6269561B2/ja active Active
-
2016
- 2016-04-08 DE DE112016001733.2T patent/DE112016001733T5/de not_active Withdrawn
- 2016-04-08 AU AU2016248421A patent/AU2016248421C1/en not_active Ceased
- 2016-04-08 WO PCT/JP2016/001957 patent/WO2016166957A1/ja active Application Filing
- 2016-04-08 US US15/554,162 patent/US10543732B2/en not_active Expired - Fee Related
- 2016-04-08 CN CN201680010568.9A patent/CN107249911B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0549417U (ja) * | 1991-12-11 | 1993-06-29 | 株式会社ゼクセル | 車両用空調装置のヒータユニット |
JPH11180136A (ja) * | 1997-12-24 | 1999-07-06 | Suzuki Motor Corp | 車両用空調装置 |
JP2006069388A (ja) * | 2004-09-02 | 2006-03-16 | Sanden Corp | 空調装置 |
JP2007326456A (ja) * | 2006-06-07 | 2007-12-20 | Toyota Auto Body Co Ltd | 空調ダクト |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10899193B2 (en) | 2016-02-22 | 2021-01-26 | Denso Corporation | Air conditioning unit for vehicle |
US11027588B2 (en) | 2016-02-22 | 2021-06-08 | Denso Corporation | Air conditioning unit for vehicle |
WO2019105930A1 (de) * | 2017-11-28 | 2019-06-06 | Valeo Klimasysteme Gmbh | Heizungs-, lueftungs- und/oder klimatisierungsvorrichtung |
US20200353788A1 (en) * | 2017-11-28 | 2020-11-12 | Valeo Klimasysteme Gmbh | Heating, ventilation and/or air-conditioning device |
US11787259B2 (en) | 2017-11-28 | 2023-10-17 | Valeo Klimasysteme Gmbh | Heating, ventilation and/or air-conditioning device |
Also Published As
Publication number | Publication date |
---|---|
JP2016203667A (ja) | 2016-12-08 |
US20180029441A1 (en) | 2018-02-01 |
US10543732B2 (en) | 2020-01-28 |
CN107249911B (zh) | 2020-01-21 |
AU2016248421C1 (en) | 2019-01-17 |
AU2016248421A1 (en) | 2017-08-10 |
DE112016001733T5 (de) | 2018-01-04 |
AU2016248421B2 (en) | 2018-03-08 |
JP6269561B2 (ja) | 2018-01-31 |
CN107249911A (zh) | 2017-10-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2016166957A1 (ja) | 車両用空調ユニット | |
JP5712002B2 (ja) | 車両用空調装置 | |
WO2015040787A1 (ja) | 空調ユニット | |
JP6101065B2 (ja) | 車両用空調装置 | |
JP2014046805A (ja) | 車両用空調装置 | |
JP6508410B2 (ja) | 車両用空調ユニット | |
JP6729606B2 (ja) | 車両用空調装置 | |
JP5127204B2 (ja) | 車両用空調装置 | |
JP4985604B2 (ja) | 車両用空調装置 | |
JP5106326B2 (ja) | 車両用空調装置 | |
JP4466532B2 (ja) | 空調装置 | |
JP4812474B2 (ja) | 車両用空気調和装置 | |
JP6472661B2 (ja) | 車両用空調装置 | |
JP4624773B2 (ja) | 車両用空調装置 | |
WO2023171503A1 (ja) | 車両用空調装置 | |
JP6783082B2 (ja) | 空気調和ユニット及び車両用空気調和装置 | |
JP4812473B2 (ja) | 車両用空気調和装置 | |
JP2008062659A (ja) | 車両用空調装置 | |
JP2007261406A (ja) | 車両用空調装置の空気取入構造 | |
JP6472662B2 (ja) | 車両用空調装置 | |
JP6499448B2 (ja) | 車両用空調装置 | |
JP3468760B2 (ja) | 車両用空調装置 | |
WO2018151149A1 (ja) | 車両用空調装置 | |
JP2017159831A (ja) | 車両用空調装置 | |
JP2005047357A (ja) | 車両用空調装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16779754 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2016248421 Country of ref document: AU Date of ref document: 20160408 Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 112016001733 Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 16779754 Country of ref document: EP Kind code of ref document: A1 |