JP2015067044A - Vehicular air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular air conditioner in which the number of components of the air conditioner to be changed for destination one by one is made small and integration is achieved even in a case that an air blowout structure is changed to correspond to difference in destination.SOLUTION: An HVAC unit 3 comprises blowout passages 13, 14 at the most downstream side of an air passage 6, the blowout passages 13 is opened and closed by a blowout mode door 20, and the blowout passages 14 is opened and closed by a blowout mode door 21. The blowout passages 13 and the blowout passages 14 are arranged as adjacent to each other in the axial direction of the rotation axis 20a of the blowout mode door 20, and the rotation axis 20a of the blowout mode door 20 and the rotation axis 21a of the blowout mode door 21 are arranged on axial lines which are in parallel with each other and different from each other. At the blowout mode door 20 and the blowout mode door 21, relay member pins move in the groove 40 and the groove 41 or 42 of a main link member 26, respectively. As the blowout mode door 21 operates differently with the main link members 26 and 27, the specification of the blowout mode of the vehicular air conditioner can be changed only by exchanging the main link members 26 and 27.

Description

  The present invention relates to a vehicle air conditioner that performs opening / closing operations of various blowout mode doors by a link mechanism attached to an air conditioning case.

  Patent Document 1 discloses a vehicle air conditioner having a sub vent blowing function. In the unit case 5 of the vehicle air-conditioning unit 1 disclosed in Patent Document 1, a bypass duct 31 for sending air to the sub vent is arranged in addition to the vent duct connection port 11, the differential duct connection port 12, the foot duct connection port 13. ing. A vent door 16, a differential foot door 17, and a sub vent door 19 for adjusting the opening degree of the connection port are disposed at each connection port. Since the bypass path 31 for sending air to the sub vent is located away from the vent, differential, and foot connection port, each door cannot be driven by a single link mechanism, and corresponds to each connection port. It is necessary to provide a separate link mechanism. From these things, unit case 5 shown in patent documents 1 is set up for exclusive use for vehicles air-conditioner which has a sub vent blowing function.

  Patent Document 2 discloses a vehicle air conditioner having a rear vent blowing function. In the air conditioning unit 2 disclosed in Patent Document 2, a front vent opening 11, a foot opening 12, a differential opening 10, and a rear vent opening 13 are arranged. A vent door 15, a foot door 16, a differential door 14, and a rear vent door 17 for adjusting the opening degree of the opening are arranged in each opening. Since the rear vent opening 13 is located away from the vent, differential, and foot openings, each door cannot be driven by a single link mechanism, and is linked individually corresponding to each opening. It is necessary to provide a mechanism. From these things, the case of the air-conditioning unit 2 shown by patent document 2 is set exclusively for the vehicle air conditioner which has a rear vent blowing function.

JP 2005-254995 A JP 2006-335288 A

  As described above, in the prior art described above, a dedicated vehicle air conditioner has been prepared when a specification having a sub vent blowing function is set. Therefore, the case cannot be shared with a vehicle air conditioner with a specification that does not have a sub vent blowing function, and for each vehicle air conditioner with a specification that has a sub vent blowing function and a specification that does not have a sub vent blowing function. It was necessary to set the mold for the case.

  Similarly, when a specification having a rear vent blowing function is set, a dedicated vehicle air conditioner has been prepared. Therefore, the case cannot be shared with a vehicle air conditioner with a specification that does not have a rear vent blowing function, and for each vehicle air conditioner with a specification that has a rear vent blowing function and a specification that does not have a rear vent blowing function. It was necessary to set the mold for the case.

  However, due to recent trends in the vehicle market, such as a reduction in manufacturing costs for air conditioners for vehicles, there is a demand for sharing the components of vehicle air conditioners even if there are differences in the climate, environment, and conditions of the destination of the vehicle. It is becoming.

  For this reason, conventionally, a mold for the case is required for each specification, etc., and in order to reduce the cost of the vehicle air conditioner, parts that can be shared when changing from one specification to the other specification are It is required to share and reduce the number of components to be changed.

  Therefore, the present invention reduces the number of components to be changed for each destination even when the air blowing structure of the air conditioner must be changed to cope with the difference in climate, environment, and conditions of the destination of the vehicle. An object of the present invention is to provide a vehicle air conditioner that is integrated.

  The vehicle air conditioner according to the present invention is a vehicle air conditioner including an HVAC unit in which an air flow path is formed inside a case, and an air conditioner is disposed on the air flow path. The HVAC unit includes the case A first blow passage and a second blow passage on the most downstream side of the air flow path, and the first blow passage includes a door body that is rotatable about a first rotation axis. The second blowout passage is opened and closed by a blowout mode door, and the second blowout passage is opened and closed by a second blowout mode door provided with a door body rotatable around a second rotation shaft. It is connected to a main link member rotatably attached to the case of the HVAC unit via a transmission member, and the engaging portion of the first transmission member moves in a first groove formed in the main link member. The second blow-out mode door is connected to the main link member via a second transmission member, and a second groove portion in which an engagement portion of the second transmission member is formed in the main link member The first blowout passage and the second blowout passage are arranged adjacent to each other in the axial direction of the rotation shaft of the first blowout mode door, and the second blowout passage is arranged so as to rotate. The rotation axis is arranged on an axis parallel to and different from the first rotation axis (claim 1).

  As a result, when the blower mode function of the vehicle air conditioner has two specifications such as a cold region specification and a warm region specification, a developed country specification and a developing country specification, the blow mode door and air flow path Even if the opening portion that opens to the most downstream side is not configured for each specification, it is possible to meet both specifications only by replacing the main link member. Thereby, since components such as the case of the HVAC unit and the blowing mode door can be made common, the manufacturing cost of the HVAC unit can be reduced even when different specifications are set.

  In the vehicle air conditioner according to the present invention, the groove portion of the main link member is formed so as to open the second blowing passage in the blowing mode in which the first blowing passage is opened. 2).

  Further, in the vehicle air conditioner according to the present invention, the groove portion of the main link member is formed so as to close the second blowing passage in the blowing mode in which the first blowing passage is opened (claim). 3).

  As described above, according to the present invention, when the blow-out mode function of the vehicle air conditioner is set to two specifications such as a cold region specification and a warm region specification, a developed country specification and a developing country specification. The HVAC unit can be adapted to both specifications by simply replacing the main link member without having to configure the blow mode door or the opening on the most downstream side of the air flow path for each specification. Since the components such as the case and the blowout mode door can be made common, the manufacturing cost of the HVAC unit can be reduced even when different specifications are set.

FIG. 1 shows an example of a vehicle air-conditioning apparatus according to the present invention having a subvent function in the first embodiment, and FIG. 1 (a) is an explanatory diagram showing a schematic configuration of the vehicle air-conditioning apparatus. FIG. 1B is an explanatory view showing a differential door of a blowing mode door of the vehicle air conditioner, and FIG. 1C is an explanatory view showing a sub vent door of the blowing mode door of the vehicle air conditioner. . FIG. 2 shows a mechanism of a blowout mode door of the HVAC unit corresponding to an example with the sub vent function of the first embodiment. FIG. 2A shows an internal configuration of each blowout mode door of the HVAC unit. FIG. 2B is an external view showing a link mechanism for moving the blowing mode door. FIG. 3 is an enlarged view of the link mechanism of the blowing mode door shown in FIG. FIG. 4 is a characteristic diagram showing the operation according to each mode of the sub vent door, the main vent door, the foot door, and the differential door in the example with the sub vent function of the first embodiment. FIG. 5 shows an example of the first embodiment of the vehicle air conditioner according to the present invention without the subvent function, and FIG. 5 (a) is an explanatory diagram showing a schematic configuration of the vehicle air conditioner. FIG. 5B is an explanatory view showing a main differential door of the blowout mode door of the vehicle air conditioner, and FIG. 5C is an explanatory view showing a sub differential door of the blowout mode door of the vehicle air conditioner. It is. FIG. 6 shows a mechanism of the blow mode door of the HVAC unit corresponding to an example of the first embodiment without the sub vent function, and FIG. 6A shows the internal configuration of each blow mode door of the HVAC unit. FIG. 6B is an external view showing a link mechanism for moving the blowing mode door. FIG. 7 is an enlarged view of the link mechanism of the blowing mode door shown in FIG. FIG. 8 is a characteristic diagram showing operations according to each mode of the sub differential door, the vent door, the foot door, and the main differential door in the example of the first embodiment without the sub vent function. FIG. 9 is an explanatory diagram showing a schematic configuration of the vehicle air conditioner in order to show one example of the rear vent function provided in the second embodiment of the vehicle air conditioner according to the present invention. FIG. 10 shows an HVAC unit corresponding to an example having a rear vent function in the second embodiment of the vehicle air conditioner according to the present invention. FIG. 10 (a) shows each outlet mode door of the HVAC unit. FIG. 10B is an external view showing a link mechanism for moving the blowing mode door. FIG. 11 is an enlarged view of the link mechanism of the blowing mode door shown in FIG. FIG. 12 is a characteristic diagram showing the operation according to each mode of the front vent door, the rear vent door, the foot door, and the differential door in the example with the rear vent function of the second embodiment. FIG. 13 is an explanatory diagram showing a schematic configuration of the vehicle air conditioner in order to show an example of the vehicle air conditioner according to the present invention having no rear vent function in the second embodiment. FIG. 14 shows an HVAC unit corresponding to an example of the second embodiment of the vehicle air conditioner according to the present invention that does not have a rear vent function, and FIG. 14 (a) shows each outlet mode door of the HVAC unit. FIG. 14B is an external view showing a link mechanism for moving the blowing mode door. FIG. 15 is an enlarged view of the link mechanism of the blowing mode door shown in FIG. FIG. 16 is a characteristic diagram showing an operation according to each mode of the main front foot door, the sub front foot door, the vent door, and the differential door in the example of the second embodiment without the rear vent function.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 to 8, a vehicle air conditioner 1 that is compatible between a specification having a sub vent blowing function and a specification not having a sub vent blowing function is shown as a first embodiment of the present invention.

  In the first embodiment, as shown in FIGS. 1 and 5, the vehicle air conditioner 1 has an inside air introduction port and an outside air introduction port opened, and is introduced from the inside air and the outside air introduction port introduced from the inside air introduction port. A blower unit 2 composed of an outside air switching box 2a in which an inside / outside air switching door is switched and a blower unit 2b in which a fan of a blower is housed, and an HVAC unit 3 in which an evaporator 7 and the like to be described later are housed Is a semi-center type connected by a duct 4.

  The HVAC unit 3 is connected to the blowout ducts 100, 101, and 102 shown in FIG. 1 in the specification having the sub vent blowing function, and the blow duct 103 shown in FIG. 5 in the specification having no sub vent blowing function. Although connected, the basic configuration is common as shown in FIGS. 2 (a) and 6 (a).

  That is, the HVAC unit 3 is arranged in an air flow path 6 provided inside the case 5, an evaporator 7 that cools the air flowing through the air flow path 6, and a downstream side of the air flow path 6 from the evaporator 7. The heater core 8 that heats the air flowing through the air flow path 6 and the air mix door that adjusts the ratio of the amount of air that passes through the heater core 8 and the amount of air that bypasses the heater core 8 between the evaporator 7 and the heater core 8. 9 are arranged. An air mix chamber 10 is formed in the air flow path 6 in which air heated by passing through the heater core 8 and air that has been cooled by the evaporator 7 bypassing the heater core 8 are mixed. A hot air passage 11 through which air heated by the heater core 8 flows is provided between the air mix chamber 10 and the downstream side surface of the heater core 8. Note that, on the upstream side of the evaporator 7 of the air flow path 6 of the HVAC unit 3, the air blowing unit side connected to the duct 4 and air introduced from the inside air introduction port or the outside air introduction port is sent to the air flow channel 6. The opening 12 is open.

  In this embodiment, the air flow path 6 is arranged above the case 5 as shown in FIGS. 1 and 2 (a) and FIGS. 5 and 6 (a). A blowout passage 13 connected to the duct 103, a blowout passage 14 connected to the blowout duct 102 or the blowout duct 103, and a blowout passage 15 located behind the blowout passages 13 and 14 in the vehicle traveling direction are formed. Yes. The most downstream sides of these outlet passages 13, 14, 15 open to the case 5.

  In this embodiment, the number of openings of the outlet passage 13 and the outlet passage 14, and the arrangement of the openings of the outlet passages 13 and 14, the outlet passage 13 has two openings 13a and 13b, and the opening 13a. It is shown that the opening part 14a of the blowing passage 14 is located between the opening part 13b and the opening part 13b. However, the present invention is not necessarily limited thereto, and the openings 13a, 13b, and 14 are arranged, and although the opening of the blowout passage 13 is not shown in the figure, the number of the openings is one. The openings 14 may be arranged side by side. The blowing passages 13 and 14 and the blowing passage 15 are partitioned by a partitioning portion 16 as shown in FIGS. 2 (a) and 6 (a).

  Further, as shown in FIGS. 2 (a) and 6 (a), an opening 17a is opened at the rear side of the case 5 in the vehicle traveling direction and below the vehicle vertical direction, and the air mix chamber 10 side is opened. A blowout passage 17 is provided for sending air to the opening 17a from the air outlet 17a, and the blowout passage 17 and the hot air passage 11 are partitioned by a partitioning portion 18.

  In the present invention, the HVAC unit 3 has openings 13a, 13b, 14a, 15a, 17a of the outlet passages 13, 14, 15, 17 as shown in FIGS. In order to open and close, four blowing mode doors 20, 21, 22, and 23 are provided. The arrangement and configuration of these blowing mode doors 20, 21, 22, and 23 are also common to the specifications having the sub vent blowing function and the specifications not having the sub vent blowing function.

  Among these, the blowing mode door 22 is a butterfly type door disposed in the vicinity of the opening 15a of the blowing passage 15 as shown in FIGS. 2 (a) and 6 (a), and has a cylindrical rod shape. The rotary shaft 22a is rotatably attached to the case 5 and two door main bodies 22b and 22c extending from the rotary shaft 22a along the radial direction of the rotary shaft 22a and in a substantially symmetrical direction. . The door main bodies 22b and 22c extend substantially along the front-rear direction of the vehicle as shown by the one-dot chain line in FIG. 2A and FIG. It can be rotated in a range from a position where the opening 15a is fully closed to a position where the opening 15a of the outlet passage 15 is fully opened, extending substantially along the vertical direction of the vehicle. The blowout mode door 22 is not limited to a butterfly type door as long as the opening 15a of the blowout passage 15 can be appropriately opened and closed. For example, the blowout mode door 22 is provided only on one side in the axial direction of the rotary shaft 22a and the rotary shaft 22a. It may be a cantilever door composed of an extended door body 22b.

  As shown in FIGS. 2A and 6A, the blowing mode door 23 is disposed closer to the air mix chamber 10 than the upstream end opposite to the opening 17a of the blowing passage 17. A rotary shaft 23a, which is a butterfly-shaped door and has a cylindrical rod shape and is rotatably attached to the case 5, and 2 extending from the rotary shaft 23a along the radial direction of the rotary shaft 23a in a substantially symmetrical direction. It is comprised by the two door main bodies 23b and 23c. The door main bodies 23b, 23c extend substantially along the vertical direction of the vehicle as shown by the one-dot chain line in FIGS. 2 (a) and 6 (a) with the rotation shaft 23a as the center of rotation. It can be rotated in a range from a position where the upstream end opening and thus the opening 17a is fully closed to a position extending substantially along the vehicle front-rear direction and a position where the upstream end opening of the blowing passage 17 and thus the opening 17a is fully opened. It is possible. The blowout mode door 23 is not limited to a butterfly type door as long as the opening 17a of the blowout passage 17 can be appropriately opened and closed. For example, the blowout mode door 23 is provided only on one side in the axial direction of the rotary shaft 23a and the rotary shaft 23a. It may be a cantilevered door composed of an extending door body 23b.

  As shown in FIGS. 2A and 6A, the blowout mode door 20 is a butterfly-type door disposed in the vicinity of the openings 13a and 13b of the blowout passage 13, as shown in FIG. As shown, the rotary shaft 20a is formed in a cylindrical rod shape and is rotatably attached to the case 5, and two door bodies extending from the rotary shaft 20a in the same direction along the radial direction of the rotary shaft 20a. 20b, 20b and two door main bodies 20c, 20c extending from the rotary shaft 20a along the radial direction of the rotary shaft 20a and extending in a substantially symmetrical direction. The door main bodies 20b and 20c extend substantially along the front-rear direction of the vehicle as shown by the one-dot chain line in FIG. 2A and FIG. It can be rotated in a range from a position where the openings 13a, 13b are fully closed to a position where the openings 13a, 13b of the outlet passage 13 are fully opened, extending substantially along the vertical direction of the vehicle. .

  The width along the axial direction of the rotary shaft 20a of each door body 20b, 20c is approximately one third of the axial dimension of the rotary shaft 20a. And as shown in FIG.1 (b), the predetermined space | interval is opened between one door main body 20b, 20c and the other door main body 20b, 20c, The dimension of this space | interval is the following, for example The width of the blowout mode door 21 is the same as or slightly larger than the width along the axial direction of the rotation shaft 21a of the door body 21b.

  The blowout mode door 20 is not limited to a butterfly type door as long as the openings 13a and 13b of the blowout passage 13 can be appropriately opened and closed. For example, one side in the axial direction of the rotary shaft 20a and the rotary shaft 20a The door body 20b may be a cantilever door that includes only the door main body 20b.

  As shown in FIGS. 2A and 6A, the blowout mode door 21 is a butterfly-type door disposed at a location farther from the blowout mode door 20 with respect to the opening 14 a of the blowout passage 14. As shown in FIG. 1 (c), a rotating shaft 21a that is formed in a cylindrical rod shape and is rotatably attached to the case 5, and a radial direction of the rotating shaft 21a from the rotating shaft 21a. And two door bodies 21b and 21c extending in a substantially symmetrical direction. The width of the door main bodies 21b and 21c along the axial direction of the rotating shaft 21a is about one third of the axial dimension of the rotating shaft 21a. However, the blowing mode door 21 is not located on the axis of the rotating shaft 20a of the blowing mode door 20 with respect to the rotating shaft 21a, and is located below the blowing mode door 20 in this embodiment.

  The blow-out mode door 21 extends with the rotating shaft 21a as the center of rotation and tilted toward the rear side of the vehicle, as shown by the one-dot chain line in FIGS. 2 (a) and 6 (a). Rotate in a range from a position where the middle portion of the blowout passage 14 and thus the opening 14a is fully closed to a position extending substantially along the vertical direction of the vehicle and a position where the middle portion of the blowout passage 14 and thus the opening 14a is fully opened. Is possible.

  The HVAC unit 3 includes a link mechanism 25 for operating the blowing mode doors 20, 21, 22, and 23 as shown in FIG. 2 (b), FIG. 3, FIG. 6 (b), and FIG. ing.

  The link mechanism 25 has a specification having a sub vent blowing function and a specification not having a sub vent blowing function, and is common except for the main link members 26 and 27. The structure of the main link members 26 and 27 is also the groove 41, Since the shape of 42 is the same except for the difference, the common points as the link mechanism 25 will be described first.

  The main link members 26 and 27 are substantially elliptical discs, and both are rotatably connected to the outer surface of the case 5 via a rotary shaft 28 and input signals from a control unit (not shown). In response, the actuator 29 is connected via a rod-shaped power transmission member 30 and a rotation relay member 31, and the rotation relay member 31 is rotatably attached to the actuator 29. As a result, the main link members 26 and 27 are supplied with power from the actuator 29 and can rotate about the rotation shaft 28.

  The rotary shaft 20a of the blow-out mode door 20 is connected to the main link member 26 via an oblong plate-shaped relay member 32 fixed to an end of the rotary shaft 20a protruding from the outer surface of the case 5 and a link lever 33. , 27. The rotary shaft 21a of the blow-out mode door 21 is connected to the main link via an oblong plate-shaped relay member 34 fixed to the end of the rotary shaft 21a protruding from the outer surface of the case 5 and a link lever 35. It is connected to the members 26 and 27. Further, the rotation shaft 22 a of the blow-out mode door 22 is connected to the main link via an oblong plate-shaped relay member 36 fixed to the end of the rotation shaft 22 a that protrudes from the outer surface of the case 5 and a link lever 37. It is connected to the members 26 and 27. Furthermore, the rotary shaft 23 a of the blow-out mode door 23 is connected to the main shaft via a link lever 39 and an oblong plate-shaped relay member 38 fixed to the end of the rotary shaft 23 a that protrudes from the outer surface of the case 5. The link members 26 and 27 are connected.

  In particular, as shown in FIGS. 3 and 7, the relay member 32 and the link lever 33 are connected to a long hole (a straight long hole in this embodiment) 33 a formed in the link lever 33 from the relay member 32. The protruding pins 32a are connected by being slidably inserted into the long holes 33a. Further, the relay member 34 and the link lever 35 are configured such that a pin 34a protruding from the relay member 34 slides in the long hole 35a in a long hole (a straight long hole in this embodiment) 35a formed in the link lever 35. It is connected by being inserted movably. Further, the relay member 36 and the link lever 37 are configured such that a pin 36a protruding from the relay member 36 slides in the long hole 37a in a long hole (a linear long hole in this embodiment) 37a formed in the link lever 37. It is connected by being inserted movably. Furthermore, the relay member 38 and the link lever 39 have a long hole (a straight long hole in this embodiment) 39a formed in the link lever 39 and a pin 38a protruding from the relay member 38 in the long hole 39a. It is connected by being slidably inserted. In this embodiment, the link levers 33, 35, 37, 39 are arranged at positions farther from the outer surface of the case 5 than the relay members 32, 34, 36, 38.

  In particular, as shown in FIGS. 3 and 7, the main link member 26 and the main link member 27 have groove portions 40, 42, and 43 having the same shape. Accordingly, the link lever 33 is rotatably connected to the outer surface of the case 5 via the rotation shaft 33b, and the pin 33c protruding from the link lever 33 is inserted into the groove portion 40 of the main link member 26 or 27. The main link members 26 and 27 are connected by being slidably inserted in the groove 40. The link lever 37 is rotatably connected to the outer surface of the case 5 via a rotary shaft 37b, and a pin 37c protruding from the link lever 37 is inserted into the groove 43 of the main link member 26 or 27. The main link members 26 and 27 are connected to each other by being slidably inserted in the inside 43. Further, the link lever 39 is rotatably connected to the outer surface of the case 5 via a rotation shaft 39b, and a pin 37c protruding from the link lever 39 is provided in the groove 44 of the main link member 26 or 27. The main link members 26 and 27 are connected to each other by being slidably inserted in the interior 44.

  However, regardless of whether the main link member 26 is used or the main link member 27 is used, the blowout mode door 20 is a differential door according to the shape of the groove portions 40, 43, 44 of the main link members 26, 27. It functions as a (main differential door), the blowing mode door 22 functions as a vent door (main vent door), and the blowing mode door 23 functions as a foot door. Accordingly, the blowing passage 13 functions as a differential blowing passage, the openings 13a and 13b function as a differential blowing opening, the blowing passage 15 functions as a vent blowing passage, and the opening 15a functions as a vent blowing opening. The blowout passage 17 functions as a foot blowout passage, and the opening 17a functions as a foot blowout opening.

  That is, in the blowout mode door 20, the pin 33c of the link lever 33 appropriately slides in the groove portion 40 as the main link members 26 and 27 rotate, and accordingly, the link lever 33 has the rotation shaft 33b as the rotation center. By rotating and rotating the relay member 32 and then the rotating shaft 20a as appropriate, from the vent mode shown in the characteristic diagram of FIG. 4 and FIG. 8 through the B / L mode, the foot mode, and the differential foot mode. In the mode of transition from the blowing mode to the differential mode, the vent mode and the B / L mode are in the fully closed state, but gradually start to open from the foot mode, and in the differential foot mode, for example, the half open state, and in the differential mode, the fully open state.

  Further, in the blowout mode door 22, the pin 37c of the link lever 37 appropriately slides in the groove 43 as the main link members 26 and 27 rotate, and accordingly, the link lever 37 has the rotation shaft 37b as the center of rotation. By rotating and rotating the relay member 36 and the rotating shaft 22a as appropriate, the vent mode is changed to the differential mode through the B / L mode, the foot mode, and the differential foot mode, which are shown as broken lines in the characteristic diagrams of FIGS. In the mode of transition to the blowing mode, the vent mode is fully open, but gradually begins to close as the B / L mode is shifted, and the foot mode is fully closed, and this fully closed state is also maintained in the differential foot mode and the differential mode. Maintained.

  In the blowout mode door 23, the pin 39c of the link lever 39 appropriately slides in the groove 44 with the rotation of the main link members 26 and 27, and the link lever 39 has the rotation shaft 39b as the center of rotation. By rotating and rotating the relay member 38 and then the rotating shaft 23a as appropriate, from the vent mode shown in the characteristic diagram of FIGS. 4 and 8 to the B / L mode, the foot mode, and the differential foot mode. In the mode of the transition to the def mode, the vent mode starts to open gradually as it shifts to the foot mode via the B / L mode in the fully closed state, and becomes the fully open state in the foot mode. As it shifts to, it gradually begins to close, and in the differential mode, it is fully closed.

  On the other hand, the main link member 26 and the main link member 27 are different from each other in that the groove portions 41 and the groove portions 42 have different shapes as described above. Accordingly, the link lever 35 connected to the blow-out mode door 21 via the relay member 34 is rotatably connected to the outer surface of the case 5 via the rotation shaft 35b, and in the main link member 26, the groove 41 is provided. Further, the pin 35c protruding from the link lever 35 is slidably inserted into the groove portion 41 so as to be connected to the main link member 26, and the main link member 27 protrudes from the link lever 35 to the groove portion 42. The pin 35c is slidably inserted into the groove portion 42 and thus connected to the main link member 27.

  However, when the main link member 26 is used, the blowing mode door 21 functions as a sub vent door in accordance with the shape of the groove 41 of the main link member 26, and accordingly, the blowing passage 14 is a sub vent blowing passage and an opening 14a. Functions as an opening for sub vent blowing. When the main link member 27 is used, the blow-out mode door 21 functions as a sub-diff door that moves in synchronization with the main differential door in accordance with the shape of the groove portion 42 of the main link member 27. Denotes a sub-difference blowing passage, and the opening 14a functions as an opening for sub-deflection blowing.

  That is, when the main link member 26 is used in the blowout mode door 21, the pin 35c of the link lever 35 appropriately slides in the groove portion 41 with the rotation of the main link member 26, and accordingly, the link lever By rotating the rotating member 35 and the rotating shaft 22a as necessary by rotating the rotating shaft 35b about the rotating shaft 35b, the bent mode, the B / L mode, the foot mode, and the differential mode are shown as solid lines in the characteristic diagram of FIG. In the transition mode of the blowout mode from the foot mode to the differential mode, the vent mode is in the fully open state in the first stage of the vent mode, but gradually begins to close as the transition to the second stage of the vent mode is in the latter stage of the vent mode. However, even if it changes to B / L mode, foot mode, differential foot mode, and differential mode, the fully closed state is maintained.

  Further, when the main link member 27 is used in the blowout mode door 21, the pin 35 c of the link lever 35 appropriately slides in the groove portion 42 with the rotation of the main link member 27, and accordingly, the link lever By rotating the relay member 34 and thus the rotating shaft 21a as necessary by rotating the rotating shaft 35b about the rotating shaft 35b, from the vent mode shown in the characteristic diagram of FIG. 8 to the B / L mode, the foot mode, and the differential mode. In the mode of transition from the foot mode to the differential mode, the vent mode, the B / L mode, the foot mode, and the differential foot mode are fully closed, but gradually open as the mode shifts to the differential mode via the differential foot mode. In the beginning, the differential mode is fully open.

  Therefore, in the vehicle air conditioner 1, when the main link member 26 is used, the blowout passage 15 functions as a main vent blowout passage, the blowout passage 14 functions as a sub vent blowout passage, and the blowout duct 14 passes through the opening 14a from the blowout passage 14. For example, the most downstream side of the blowout duct 102 becomes the upper vent blowout opening 102a, and the conditioned air can be blown out on the face or the head of the front seat occupant, which has a sub vent function. Note that the blowout passage 13 always functions as a differential blowout passage, and is connected to the blowout ducts 100 and 101 in the same manner as in the conventional example, so that the blowout duct 100 or the blowout duct 100 through the openings 13a and 13b is connected. It flows to 101 and blows off from the differential outlet 100a, 101a, and performs fogging prevention of a window glass.

  When the vehicle air conditioner 1 uses the main link member 27, the blowout passage 13 functions as a main differential blowout passage, the blowout passage 14 functions as a sub differential blowout passage, and the openings 13a, 13b, All flow through the blowout duct 103 through 14a and blown out from the differential blower outlet 103a to prevent the window glass from being fogged, and the specification does not have a sub vent function.

  As described above, the vehicle air conditioner 1 only replaces the main link member 26 and the main link member 27, and the specifications without the sub vent function from the specification with the sub vent function even if each of the subsequent configurations is common. Or, on the contrary, it is possible to change from a specification having no sub vent function to a specification having a sub vent function. Accordingly, the case 5 can be shared by the specification having the sub vent function and the specification not having the sub vent function.

  9 to 16, a vehicle air conditioner 1 that can be used interchangeably between a specification having a rear vent blowing function and a specification having no rear vent blowing function is shown as a second embodiment of the present invention. Hereinafter, the vehicle air conditioner 1 will be described. However, the same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIGS. 9, 10, 13, and 14, the vehicle air conditioner 1 has no blowout passage 14, only the blowout passage 13, and an opening that opens to the most downstream side of the blowout passage 13. There is only one opening 13c having the same width as the opening 15a of the outlet passage 15. Accordingly, there is no blowout mode door 21, and the blowout mode door 20 'has only one door body 20b, 20c, unlike the blowout mode door 20 of the first embodiment.

  The vehicle air conditioner 1 is accommodated in the air flow path 6, the part of the air flow path 6 up to the air mix chamber 10 side in the specification having the rear vent blowing function and the specification not having the rear vent blowing function. The evaporator 7, the heater core 8, the air mix door 9, the blower unit side opening 12, the outlet passage 13 and its opening 13 c, the outlet passage 15 and its opening 15 a are common, and the outlet mode door 20 ′. , 22 are also common.

  On the other hand, the vehicle air conditioner 1 has a rear vent blowing function on the downstream side of the air mix chamber 10 of the air flow path 6, on the rear side of the case 5 in the vehicle traveling direction and below the vehicle vertical direction. 9 and 10, the openings 17b, 17c, 17d are opened, and there are blowout passages 171, 172, 173 for sending air from the air mix chamber 10 side to the openings 17b, 17c, 17d. Is provided. These blowing passages 171, 172, and 173 are partitioned from the warm air passage 11 by a partition portion 18 and are arranged in parallel along the width direction of the vehicle.

  On the other hand, the vehicle air conditioner 1 has a rear vent blowing function on the downstream side of the air mix chamber 10 of the air flow path 6 and the rear side of the vehicle traveling direction of the case 5 and the vehicle vertical direction. 13 and FIG. 14, openings 17 b and 17 c are opened, and an outlet passage 174 for sending air from the air mix chamber 10 side to the openings 17 b and 17 c is provided. The blowing passage 174 is partitioned from the warm air passage 11 by a partition portion 18.

  As shown in FIGS. 10 (a) and 14 (a), the vehicle air conditioner 1 is provided with the outlet passages 171 and 172 in both the specifications having the rear vent blowing function and the specifications not having the rear vent blowing function. , 173 and 174 are common in that they have blowout mode doors 23 'and 24.

  The blowout mode door 23 ′ is a butterfly type door disposed above the upstream end of the blowout passages 171 and 172 or above the upstream end of the blowout passage 174. FIG. 1 (b) and FIG. Similarly to the blow-out mode door 20 of the first embodiment shown in b), a rotating shaft 23a that is formed in a cylindrical rod shape and is rotatably attached to the case 5, and a radial direction of the rotating shaft 23a from the rotating shaft 23a. Two door main bodies 23b, 23b extending in the same direction along the same, and two door main bodies 23c extending from the rotary shaft 23a along the radial direction of the rotary shaft 23a and in a substantially symmetrical direction with the door main bodies 23b, 23b, 23c. The door main bodies 23b and 23c extend substantially along the vertical direction of the vehicle as shown by the one-dot chain line in FIG. 10A and FIG. , 172 or 174, extending from the position where the upstream ends 17b and 17c are fully closed, extending substantially along the longitudinal direction of the vehicle, and the upstream ends of the outlet passages 171, 172 or 174 and thus the openings 17b and 17c. It can be rotated in the range up to the fully opened position.

  The width along the axial direction of the rotary shaft 23a of each door body 23b, 23c is approximately one third of the axial dimension of the rotary shaft 23a. A predetermined interval is opened between one door main body 23b, 23c and the other door main body 23b, 23c, as in the case of the first embodiment. The width of the mode door 24 is the same as or slightly larger than the width of the door body 24b of the door body 24b along the axial direction.

  The blowing mode door 24 is a butterfly door that is disposed near the upstream end of the blowing passage 173 or near the upstream end of the blowing passage 174. That is, this blowing mode door 24 has a cylindrical rod shape and is rotatably attached to the case 5 like the blowing mode door 21 of the first embodiment shown in FIGS. 1 (c) and 5 (c). And a pair of door bodies 24b and 24c extending from the rotary shaft 24a along the radial direction of the rotary shaft 24a and in a substantially symmetrical direction. The width of the door main bodies 24b and 24c along the axial direction of the rotary shaft 24a is about one third of the axial dimension of the rotary shaft 24a. However, the blowout mode door 24 is not located on the axis of the rotary shaft 23a of the blowout mode door 23 'with respect to the rotary shaft 24a, and is positioned below the blowout mode door 23' in this embodiment.

  The blow-out mode door 24 extends substantially along the front-rear direction of the vehicle, as shown by the one-dot chain line in FIGS. 10 (a) and 14 (a), with the rotation shaft 24a as the center of rotation, It is possible to rotate in a range from a position where the upstream end of 173 and thus the opening 17d are fully closed to a position extending substantially along the vertical direction of the vehicle to a position where the upstream end of the blowing passage 173 and thus the opening 17d is fully opened. It is possible.

  The HVAC unit 3 has a link mechanism 25 for operating the blowout mode doors 20 ′, 22, 23 ′, 24 as shown in FIGS. 10 (b), 11, 14 (b), and 15. In preparation.

  The link mechanism 25 has a specification having a rear vent blowing function and a specification not having a rear vent blowing function, except for main link members 26 ′ and 27 ′ having a substantially elliptical disk shape. Since the configurations of the members 26 ′ and 27 ′ are the same except that the shapes of the groove portions 46 and 47 are different, the common points as the link mechanism 25 will be described first. However, the same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  Any of the link mechanisms 25 does not have the blow mode door 21 in the second embodiment, and therefore does not have the relay member 34 and the link lever 35 shown in the first embodiment, but appropriately uses the blow mode door 24. In order to rotate, it has an oval plate-like relay member 48, a link lever 49, a link lever 50, and a connecting member 51 fixed to the end of the rotating shaft 24a protruding from the outer surface of the case 5.

  In particular, as shown in FIGS. 11 and 15, the relay member 48 and the link lever 49 are connected to a long hole (a linear long hole in this embodiment) 49 a formed in the link lever 49 from the relay member 48. The protruding pins 48a are connected by being slidably inserted into the long holes 49a. The link lever 49 is rotatably connected to the outer surface of the case 5 via a rotary shaft 49b, and is connected to the link lever 50 via a connecting member 51 of a rod-shaped body, and the rotation of the link lever 50 is linked to the link lever. 49 is transmitted. The link lever 50 is rotatably connected to the outer surface of the case 5 via a rotation shaft 50a, and a pin 50b protruding from the link lever 50 is provided in the groove 46 in the main link member 26 '. By being slidably inserted, the main link member 26 ′ is connected to the main link member 26 ′. In the main link member 27 ′, the pin 50 b protruding from the link lever 50 is slidably inserted into the groove 47. Thus, the main link member 27 'is connected.

  Even in the second embodiment, the shape of the groove portions 40, 43, 44 of the main link members 26 ', 27' is the same regardless of whether the main link member 26 'is used or the main link member 27'. Accordingly, the blowing mode door 20 ′ functions as a differential door, the blowing mode door 22 functions as a vent door (front vent door), and the blowing mode door 23 ′ functions as a foot door (main foot door). Accordingly, the blowout passage 13 functions as a differential blowout passage, the opening 13c functions as a differential blowout opening, the blowout passage 15 functions as a vent blowout passage, and the opening 15a functions as a vent blowout opening. Reference numerals 171 and 172 denote foot blowing passages, and the openings 17b and 17c function as foot blowing openings.

  That is, in the blowout mode door 20 ′, the pin 33c of the link lever 33 appropriately slides in the groove portion 40 as the main link members 26 ′ and 27 ′ rotate, and the link lever 33 moves the rotation shaft 33b accordingly. By rotating as the center of rotation and appropriately rotating the relay member 32 and thus the rotating shaft 20a, the bent mode, B / L mode, foot mode, differential foot shown in the characteristic diagram of FIGS. 12 and 16 are shown. In the transition mode of the blowout mode from the mode to the differential mode, the vent mode and the B / L mode are in the fully closed state, but gradually start to open from the foot mode, and in the differential foot mode, for example, the half open state, in the differential mode the fully open state It becomes.

  In the blowout mode door 22, the pin 37c of the link lever 37 appropriately slides in the groove 43 as the main link members 26 'and 27' rotate, and the link lever 37 rotates the rotation shaft 37b accordingly. By rotating the relay member 36 and then the rotating shaft 22a as appropriate by rotating the center, the bent mode, the B / L mode, and the foot mode are shown as a solid line in the characteristic diagram of FIG. 12 and a broken line in the characteristic diagram of FIG. In the mode of transition from the differential foot mode to the differential mode, the vent mode is in the fully open state in the vent mode, but gradually begins to close as the transition to the B / L mode, and in the foot mode, the fully closed state is entered. This fully closed state is maintained even in the differential mode.

  In the blowout mode door 23 ′, the pin 39c of the link lever 39 slides appropriately in the groove 44 as the main link members 26 ′ and 27 ′ rotate, and the link lever 39 rotates the rotation shaft 39b. By rotating as the center of rotation and appropriately rotating the relay member 38 and thus the rotating shaft 23a, the bent mode, the B / L mode, the foot shown by the broken line in the characteristic diagram of FIG. 12 and the solid line in the characteristic diagram of FIG. In the transition mode of the blowout mode that reaches the differential mode through the mode and the differential foot mode, the vent mode starts to open gradually as it shifts to the foot mode through the B / L mode in the fully closed state, and becomes the fully open state in the foot mode. Then, as it shifts to the differential mode through the differential foot mode, it gradually starts to close, and in the differential mode, it is in a fully closed state.

  On the other hand, when the main link member 26 ′ is used, the blowout mode door 24 functions as a rear vent door that moves in synchronization with the front vent door in accordance with the shape of the groove 46 of the main link member 26 ′. The blowing passage 173 functions as a rear vent blowing passage, and the opening 17d functions as a rear vent blowing opening. When the main link member 27 ′ is used, the blowout mode door 24 functions as a sub-foot door that moves in synchronization with the main foot door in accordance with the shape of the groove 47 of the main link member 27 ′. The blowing passage 174 functions as a subfoot blowing passage, and the opening 17d functions as a subfoot blowing opening.

  That is, when the main link member 26 ′ is used, the blowout mode door 24 appropriately slides in the groove 46 as the pin 50 b of the link lever 50 rotates along with the rotation of the main link member 26 ′. Since the link lever 50 rotates about the rotation shaft 50a and the rotation of the link lever 50 is transmitted to the link lever 49 via the connecting member 51, the relay member 48 and thus the rotation shaft 24a is appropriately rotated. In the aspect of transition from the vent mode to the differential mode through the B / L mode, the foot mode, and the differential foot mode, which is shown as a solid line in the characteristic diagram of FIG. 12, the vent mode is in a fully open state, / L mode begins to close gradually as it shifts to the L mode. The foot mode is fully closed, and the differential foot mode and differential mode are fully closed. State is maintained.

  Further, when the main link member 27 ′ is used, the blowout mode door 24 appropriately slides in the groove 47 as the pin 50b of the link lever 50 rotates as the main link member 27 ′ rotates. Since the link lever 50 rotates about the rotation shaft 50a and the rotation of the link lever 50 is transmitted to the link lever 49 via the connecting member 51, the relay member 48 and thus the rotation shaft 24a is appropriately rotated. In the aspect of transition from the vent mode to the differential mode through the B / L mode, the foot mode, and the differential foot mode, shown as a solid line in the characteristic diagram of FIG. 16, in the vent mode, the B / L is in the fully closed state. It gradually begins to open as it moves to the foot mode through the mode, and the foot mode is fully opened, but the differential mode through the differential foot mode Gradually begins to close in accordance with the transition, the fully closed state in the defrost mode.

  Therefore, when the vehicle air conditioner 1 uses the main link member 26 'and the outlet passages 171, 172, 173, the outlet passage 15 functions as a front vent outlet passage, and the outlet passage 173 functions as a rear vent outlet passage. It is possible to allow the occupant to blow out conditioned air from the rear-side air outlet at 173 on the most downstream side, and the specification has a rear vent function. Note that the blowout passages 171 and 172 always function as foot blowout passages, and are blown out from the foot blowout port to the feet of the front seat passenger, as in the conventional example.

  When the vehicle air conditioner 1 uses the main link member 27 ′ and the outlet passage 174, the outlet passage 174 functions as a foot outlet passage, and the outlet mode door 23 ′ functions as a main front foot door. As the blowing mode door 24 that functions as a front foot door rotates as a unit, the conditioned air that reaches the downstream side of the opening 15a of the blowing passage 15 passes through the front foot outlet from the blowing passage 174 to the front seat passenger. It will be blown out underneath, and will have no rear vent function.

  As described above, the vehicle air conditioner 1 only replaces the main link member 26 ′ and the main link member 27 ′, and the rear components can be rear vented even if the components other than the passages 171, 172, 173, and 174 are common. It is possible to change from a specification having a function to a specification having no rear vent function, or on the contrary, from a specification having no rear vent function to a specification having a rear vent function. Accordingly, the case 5 can be shared by the specification having the rear vent function and the specification not having the rear vent function.

DESCRIPTION OF SYMBOLS 1 Vehicle air conditioner 3 HVAC unit 5 Case 6 Air flow path 13 Outlet passage 13a Opening part 13b Opening part 13c Opening part 14 Outlet passage 14a Opening part 15 Outlet passage 15a Opening part 17a Outlet part 17 Outlet passage 20 Outlet mode door 20 'blowing mode door 20a rotating shaft 20b door body 20c door body 21 blowing mode door 21a rotating shaft 21b door body 21c door body 22 blowing mode door 22a rotating shaft 22b door body 22c door body 23 blowing mode door 23' blowing mode door 23a Rotating shaft 23b Door body 23c Door body 24 Blow mode door 24a Rotating shaft 24b Door body 24c Door body 25 Link mechanism 26 Main link member 26 'Main link member 27 Main link member 27' Main link member 40 Groove 4 1 Groove 42 Groove 43 Groove 44 Groove 46 Groove 47 Groove

Claims (3)

In a vehicle air conditioner including an HVAC unit in which an air flow path is formed inside a case and an air conditioner is disposed on the air flow path,
The HVAC unit includes a first outlet passage and a second outlet passage on the most downstream side of the air flow path of the case,
The first outlet passage is opened and closed by a first outlet mode door provided with a door body rotatable around a first rotation axis.
The second outlet passage is opened and closed by a second outlet mode door provided with a door body rotatable around a second rotation axis.
The first blow-out mode door is connected to a main link member rotatably attached to the case of the HVAC unit via a first transmission member, and an engaging portion of the first transmission member is formed in the main link member. Rotating by moving in the first groove portion,
The second blow-out mode door is connected to the main link member via a second transmission member, and the engaging portion of the second transmission member moves in a second groove formed in the main link member. It is designed to rotate
The first blowing passage and the second blowing passage are arranged adjacent to each other in the axial direction of the rotation shaft of the first blowing mode door, and the second rotation shaft is parallel to the first rotation shaft. In addition, the vehicle air conditioner is arranged on different axes. 2. The vehicle air conditioner according to claim 1, wherein the groove portion of the main link member is formed to open the second blowing passage in a blowing mode in which the first blowing passage is opened. 2. The vehicle air conditioner according to claim 1, wherein the groove portion of the main link member is formed to close the second blowing passage in a blowing mode in which the first blowing passage is opened.

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