JP6208686B2 - Vehicle air conditioner door holding structure and vehicle air conditioner equipped with the same - Google Patents

Description

  The present invention relates to a door holding structure for a vehicle air conditioner that is employed to support two doors on the same axis, and a vehicle air conditioner equipped with the door holding structure.

  In a vehicle air conditioner, a door support structure as shown in Patent Document 1 described below is known as a structure that rotatably supports two doors on the same axis.

  This comprises two doors, a first door and a second door, which are composed of a door plate portion and a pair of rotating shaft portions projecting at both ends of the door plate portion, and slits in the rotating shaft portion of the first door. And providing a reduced width portion with a partially shortened radial width on the rotary shaft portion of the second door, and inserting the reduced width portion into the slit portion from the outside in the radial direction of the rotary shaft portion of the first door. Thus, the two doors are temporarily assembled and inserted into the bearing portion of the air conditioning case so as to be supported by the vehicle air conditioner.

JP 2011-207307 A

  The door used in the vehicle air conditioner is a resin door to reduce the weight, but in the door structure described above, the shaft of one door is inserted from the outside in the radial direction of the shaft of the other door. Therefore, when temporarily assembled, depending on how the radial force is applied, the supported portion (rotating shaft) itself is bent in the radial direction, and smooth rotation of the door is obstructed. There was a fear.

  The present invention has been made in view of such circumstances, a door holding structure capable of preventing the supported portion of the door from being bent in the radial direction during temporary assembly, and ensuring smooth rotation of the door; It is the main subject to provide a vehicle air conditioner provided with this.

In order to achieve the above object, the door holding structure for a vehicle air conditioner according to the present invention proposes a configuration in which two doors are temporarily assembled so as not to apply a force in the radial direction of the rotation axis. A first door having a first supported portion formed and a second door having a second supported portion forming a pair, and the first door is disposed between the first wall and the second wall facing each other. A door holding structure in which one door and the second door are arranged, wherein one of the first supported portions is rotatably supported by a first bearing hole formed in the first wall. In the door holding structure in which the other of the second supported parts is rotatably supported by a second bearing hole formed in the second wall, one of the second supported parts is One of the first supported parts is supported along a perpendicular from the first bearing hole, and rotates about the axis of the first bearing hole The first supported portion can be inserted into one of the first supported portions or packaged between the pair of first supported portions, and the other of the first supported portions can be inserted into the second supported portion. Of the second supported portion that is supported along the perpendicular line from the second bearing hole , is rotatable about the axis of the second bearing hole, and is a pair of the second supported portions that form the pair. It is characterized in that it can be inserted into the other of the second supported parts or can be packaged .

Thus, when temporarily assembling the first door and the second door, one of the second supported parts is connected to one of the first supported parts from between the pair of first supported parts. Or is rotatably supported along the vertical line from the first bearing hole (along the axial direction of the first bearing hole), and the other of the first supported parts is paired Inserted or sheathed between the second supported parts formed and placed on the other of the second supported parts, and can be rotated along the perpendicular from the second bearing hole (along the axial direction of the second bearing hole). since the supported, it is not necessary to insert the other of the supported portion from the outer side in the radial direction of the supported portion, is prevented from the supported portion of the door deflects.

One of the second supported parts is supported by one of the first supported parts along the perpendicular from the first bearing hole, and the other of the first supported parts is supported by the second supported part. As a configuration to support along the perpendicular from the second bearing hole to the other support portion,
(1) One of the second supported parts is supported along the axial direction by being inserted into one inner diameter side of the first supported part, and the other of the first supported parts is supported as the second supported part. Even if it is supported along the axial direction by inserting the other inner diameter side of the part,
(2) One of the second supported parts is supported along the axial direction by covering one outer diameter side of the first supported part, and the other of the first supported parts is supported by the second supported part. Even if it is supported along the axial direction by covering the other outer diameter side of the support part,
(3) One of the second supported parts is supported along the axial direction by being inserted into one inner diameter side of the first supported part, and the other of the first supported parts is supported as the second supported part. Even if it is supported along the axial direction by covering the other outer diameter side of the part,
(4) One of the second supported parts is supported along the axial direction by covering one outer diameter side of the first supported part, and the other of the first supported parts is supported by the second supported part. You may make it support along an axial direction by inserting in the other internal diameter side of a support part.

  In the above configuration, the first door and the second door have a pair of side wall portions that extend substantially perpendicular to the respective supported portions, and a blocking portion that connects between the pair of side wall portions. Even a rotary door configured as described above can be similarly adopted even if it is a plate door provided with a plate-like portion extending substantially parallel to the axis of each supported portion.

  In particular, when a rotary door is employed, it is preferable in terms of strength that a rib is installed between the pair of side wall portions in the vicinity of the supported portion.

  In order to adopt such a configuration for a vehicle air conditioner, the first wall and the second wall are formed of an air conditioning case in which an air flow path is formed, and the first door and The second door may be disposed in the air flow path.

As described above, according to the present invention, the first door having the first supported portion that makes a pair and the second door having the second supported portion that makes the pair are coaxially supported. In doing so, one of the second supported parts is inserted or packaged between one pair of the first supported parts to one of the first supported parts, and along the perpendicular from the first bearing hole. The other of the first supported parts is rotatably supported, and the other side of the second supported part is inserted or packaged between the pair of second supported parts and perpendicular to the second bearing hole. Therefore, when the first door and the second door are temporarily assembled, there is no need to insert another supported portion from the outside in the radial direction of the supported portion, and each supported No force is applied to the support portion from the radial direction. For this reason, it is possible to prevent the supported portion from being bent in the radial direction, and the smooth rotation of the door is not hindered.

  In the case where the first door and the second door are composed of rotary doors, a force is applied in the axial direction to the side wall portion by installing a rib between the pair of side wall portions in the vicinity of the supported portion. Even in this case, it is possible to eliminate the bending of the door and prevent the supported portion from falling off the supporting portion.

FIG. 1 is a diagram showing an example of the overall configuration of a vehicle air conditioner according to the present invention. FIG. 2 is a view showing the first embodiment, and FIG. 2 (a) is a perspective view showing a state before the mix door and the mode door used in the vehicle air conditioner according to the present invention are assembled. FIG. 2B is a cross-sectional view showing the assembly structure in the vicinity of the supported portion in a state where these doors are assembled and mounted on the case. FIG. 3 is an explanatory view showing an assembling procedure when the mix door and the mode door of FIG. 2 are used. FIG. 4 is a view showing a second embodiment, and FIG. 4 (a) is a perspective view showing a state before the mix door and the mode door used in the vehicle air conditioner according to the present invention are assembled. FIG. 4B is a cross-sectional view showing an assembly structure in the vicinity of the supported portion in a state where these doors are assembled and mounted on the case. FIG. 5 is an explanatory diagram showing an assembling procedure when the mix door and the mode door of FIG. 4 are used. FIG. 6 is a view showing a third embodiment, and FIG. 6 (a) is a perspective view showing a state before the mix door and the mode door used in the vehicle air conditioner according to the present invention are assembled. FIG. 6B is a cross-sectional view showing the assembly structure in the vicinity of the supported portion in a state where these doors are assembled and mounted on the case. FIG. 7 is an explanatory diagram showing an assembling procedure when the mix door and the mode door of FIG. 6 are used. FIG. 8 is a view showing a fourth embodiment, and FIG. 8 (a) is a perspective view showing a state before the mix door and the mode door used in the vehicle air conditioner according to the present invention are assembled, FIG. 8B is a cross-sectional view showing an assembly structure in the vicinity of the supported portion in a state where these doors are assembled and mounted on the case. FIG. 9 is an explanatory diagram showing an assembling procedure when the mix door and the mode door of FIG. 8 are used.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows an air conditioning unit 1 of a center-place type vehicle air conditioner mounted on a center console portion of a vehicle. The air-conditioning unit 1 is arranged closer to the vehicle compartment side than the partition plate that partitions the engine room and the vehicle compartment, and the outside air (vehicle compartment outside air) and / or the inside air (vehicle compartment air) are blown to It is introduced into the air introduction space 3 of the air conditioning case 2 via a not-shown).

  The air-conditioning case 2 forms a passage for air flowing toward the passenger compartment, and is molded by a synthetic resin material. For reasons of assembling the air-conditioning equipment in the case, and for convenience of die cutting on molding, It comprises a plurality of case members. In this example, the case members are divided in the vehicle left-right direction.

  The air conditioning case 2 includes an introduction port 4 for introducing air into the air introduction space 3, a first blowing passage 5 that guides air upward of the case 2, and a second blowing passage 6 that guides air downward of the case 2. It has.

  In the air conditioning case 2, an evaporator 7 that forms a heat exchanger for cooling is disposed downstream of the air introduction space 3, and a heater core 8 that forms a heat exchanger for heating is disposed downstream of the evaporator 7. .

  The evaporator 7 constitutes a part of the refrigeration cycle, and is arranged in the air passage so that all the air introduced from the inlet 4 passes, and cools the passing air as necessary. Can do.

  A partition wall 9 disposed substantially at the center of the air passage is formed integrally with the air conditioning case 2 on the downstream side of the evaporator 7. The partition wall 9 is provided so as to face the upper portion from the substantially center of the ventilation portion of the evaporator 7, and extends substantially parallel to the ventilation end surface of the evaporator 7.

  The heater core 8 heats air using engine coolant as a heat source, and is disposed below the partition wall 9. In this example, the heater core 8 is installed substantially horizontally from the lower end of the partition wall 9 to the guide wall 16 provided on the passenger compartment side of the air conditioning case 2.

  Therefore, between the evaporator 7 and the partition wall 9 on the downstream side of the evaporator 7, the air that has passed through only the evaporator 7 (cold air that has bypassed without passing through the heater core 8) is directed obliquely upward toward the passenger compartment. A bypass passage 10 (in this example, a cold air passage) is formed, and air that has passed through the evaporator 7 and the heater core 8 (the heater core 8 is interposed between the partition wall 9 and the guide wall 16 on the downstream side of the evaporator 7). A warm air passage 11 is formed to guide the warm air (passed warm air) upward toward the passenger compartment.

  Above the partition wall 9, a mixed space 12 for mixing the cold air supplied from the bypass passage 10 and the hot air supplied from the hot air passage 11 is formed. In the mix space 12, the first blowing passage 5 and the first air passage Two blowout passages 6 are connected.

  The first blowing passage 5 guides the air introduced by the blower unit to the upper side of the case 2, the mix space 12, the defrost blowing opening 13 that blows the introduced air toward the glass inner surface in front of the vehicle, The introduced air communicates with a vent outlet opening 14 that blows out the air toward the upper body of the occupant.

  The second blowing passage 6 guides the air introduced by the blower unit to the lower side of the case 2, and communicates with the mix space 12 and the foot blowing opening 15 for blowing the introduced air toward the feet of the occupant. ing.

  In this embodiment, the bypass passage 10, the hot air passage 11, the first blowout passage 5, and the second blowout passage 6 are centered on the mix space 12 and around the bypass passage 10, the first blowout passage 5, and the second blowout passage. The passage 6 and the warm air passage 11 are arranged in this order, and are connected to the mix space 12. A portion where the bypass passage 10 and the first outlet passage 5 are connected to the mix space 12 is separated by a circumferential wall 17 that forms a part of the case 2 in a circular shape, and the first outlet passage 5 and the second outlet passage 5. 6 is connected to the mix space 12 by a circumferential wall 18 that forms a part of the case 2 in a circumferential shape, and the portion where the second blowing passage 6 and the hot air passage 11 are connected to the mix space 12 is A part of the case 2 is separated by a circumferential wall 19 formed in a circumferential shape, and a portion where the warm air passage 11 and the bypass passage 10 are connected to the mix space 12 is the partition wall 9 formed integrally with the case 2. Separated by.

  In the mix space 12, a rotary-type mix door 20 that adjusts the introduction ratio of the cold air supplied from the bypass passage 10 and the hot air supplied from the hot air passage 11, and the mix space 12 heads to the first outlet passage 5. A rotary mode door 30 is provided that adjusts the air distribution ratio of the air and the air toward the second blowing passage 6.

  The mix door 20 is made of a synthetic resin material, and as shown in FIG. 2, the pair of first supported portions 21a and 21b provided on the rotation axis, and the first supported portions 21a and 21a, A pair of substantially fan-shaped side wall portions 22a and 22b extending in a radial direction from 21b, and a closing portion 23 formed so as to connect the outer peripheral edges of the pair of side wall portions 22a and 22b; And a rib 24 provided between the side wall portions 22a and 22b in the vicinity of the first supported portions 21a and 21b. The first supported portions 21a and 21b are rotatably arranged in the approximate center of the mix space 12 (only the first supported portion 21a on one side is shown in FIG. 1), and the blocking portion 23 is the first one. The opening ratio of the bypass passage 10 and the hot air passage 11 to the mix space 12 can be adjusted by being positioned upstream of the one supported portion 21a, 21b.

  Further, the mode door 30 is also made of a synthetic resin material, and is provided with a pair of second supported portions 31a and 31b provided on the rotation axis, and a radial direction from the pair of second supported portions 31a and 31b. A pair of substantially fan-shaped side wall portions 32a and 32b extending in parallel to each other, a blocking portion 33 formed so as to connect the outer peripheral edges of the pair of side wall portions 32a and 32b, and a second And ribs 34 provided between the side wall portions 32a and 32b in the vicinity of the supported portions 31a and 31b. And the 2nd supported parts 31a and 31b are arrange | positioned so that rotation on the same rotating axis as the supported parts 21a and 21b of the mix door 20 is possible, and the obstruction | occlusion part 33 is more than 2nd supported parts 31a and 31b. Positioned on the downstream side, the opening ratio of the first blowing passage 5 and the second blowing passage 6 to the mix space 12 can be adjusted.

  The first blowing passage 5 is provided with a cantilevered differential vent door 40 that adjusts the air distribution ratio of the air from the mix space 12 toward the defrost blowing opening 13 and the air toward the vent blowing opening 14. By positioning the differential vent door 40 in cooperation with the mode door 30, the air introduced into the case 2 through the blower unit is distributed to the defrost outlet opening 13, the vent outlet opening 14, and the foot outlet opening 15 at an appropriate ratio. can do.

  In the above vehicle air conditioner, various structures are conceivable as the structure for holding the first supported portions 21a and 21b of the mix door 20 and the second supported portions 31a and 31b of the mode door 30 on the same axis. However, in the present invention, the following four forms are adopted. Hereinafter, each form is explained in full detail.

  FIG. 2 shows a first embodiment of the door holding structure. In this example, one side 21a of the first supported portion of the mix door 20 is formed in a cylindrical shape from the side wall portion 22a toward the outside of the air conditioning case 2 on the rotation axis, and the case member 2b (second And a first bearing hole 50a formed in the case member 2a (first wall) facing the wall. Further, the other 21b of the first supported portion is formed in a columnar shape from the side wall portion 22b toward the outside of the air conditioning case 2 on the rotation axis.

  One of the second supported parts 31 a of the mode door 30 is formed in a columnar shape from the side wall part 32 a toward the outside of the air conditioning case 2 on the rotation axis. Further, the other 31b of the second supported portion is formed in a cylindrical shape from the side wall portion 32b toward the outside of the air conditioning case 2 on the rotation axis, and faces the case member 2a (first wall). The second bearing hole 50b formed in the (second wall) is rotatably supported.

  The outer diameter of one of the second supported parts 31a is slightly smaller than the inner diameter of the cylindrical hole 25a formed in one of the first supported parts 21a. One of the parts 31a is rotatably inserted into the cylindrical hole 25a of the one 21a of the first supported part. In addition, the outer diameter of the other 21b of the first supported portion is formed slightly smaller than the inner diameter of the cylindrical hole 35b formed in the other 31b of the second supported portion. The other 21b of the supported part is rotatably inserted into the cylindrical hole 35b of the other 31b of the second supported part.

  The length in the axial direction of one side 21a of the first supported part is formed longer than the length in the axial direction of one side 31a of the second supported part, and one side 31a of the second supported part is inserted. The range of the cylindrical hole 25a is at least circular in cross section. In addition, the length in the axial direction of the other supported portion 31b of the second supported portion is longer than the length in the axial direction of the other supported portion 21b of the first supported portion, and the other 21b of the first supported portion is inserted. The range of the cylinder hole 35b to be formed is at least circular in cross section

  In addition, 51a is a lever member which is attached to one side 21a of the first supported portion from the outside of the air conditioning case 2 and applies rotational power to the mix door 20, and 51b is a second member from the outside of the air conditioning case 2. It is a lever member that is attached to the other supported portion 31 b and applies rotational power to the mode door 30.

  In the above configuration, to assemble the mix door 20 (first door) and the mode door 30 (second door), as shown in FIG. 3A, the mix door 20 and the mode door 30 are connected to each other. The supported parts (the first supported parts 21a, 21b and the second supported parts 31a, 31b) are opposed to each other, and from this state, the supported parts (21a, 21b) of the mix door 20 and the mode door The doors are shifted in the axial direction so that the 30 supported portions (31a, 31b) are aligned with each other in the axial direction (FIG. 3B), and then one of the doors (mode door 30). Is moved so as to overlap the other door (mixed door 20) in the axial direction, and one of the second supported parts 31a is brought close to one of the first supported parts 21a along the axial direction, and The other 31 of the second supported parts The along the axial direction to a first other 21b of the supported portion to close in the same direction.

  Then, the one 31a of the second supported part is inserted into the cylindrical hole 25a of the one 21a of the first supported part (the one 21a of the first supported part is attached to the one 31a of the second supported part). In addition, the other 31b of the second supported portion is attached to the other 21b of the first supported portion, and the exterior (the other 21b of the first supported portion is connected to the cylindrical hole 35b of the other 31b of the second supported portion). 3), the mix door 20 and the mode door 30 are temporarily assembled so as to be rotatable with respect to each other on the coaxial line (FIG. 3C).

  Thereafter, the case members 2a and 2b divided into the left and right parts are brought close to each other from the outside in the rotation axis direction, and one of the first supported parts 21a is inserted into the first bearing hole 50a of the case member 2a. The other supported portion 31b of 2 is inserted into the second bearing hole 50b of the case member 2b (FIG. 3D).

  Therefore, according to the configuration described above, when the mix door 20 and the mode door 30 are temporarily assembled, the first bearing hole 31a is connected to the first supported portion one side 21a. The second bearing is supported along the perpendicular from 50a (along the axial direction of the first bearing hole 50a), and the other 21b of the first supported part is supported on the other 31b of the second supported part. Since it is supported along the vertical line from the hole 50b (along the axial direction of the second bearing hole 50b), it is necessary to insert the second supported part from the outside in the radial direction with respect to the first supported part. In addition, it is not necessary to insert the first supported portion from the outside in the radial direction with respect to the second supported portion, and a force is applied to each supported portion 21a, 21b, 31a, 31b from the radial direction. Disappear. For this reason, each supported part 21a, 21b. 31a and 31b are prevented from bending in the radial direction, and smooth rotation of the door is not hindered after assembly.

  Moreover, since the ribs 24 and 34 are constructed between the pair of side wall portions in the vicinity of the supported portions 21a, 21b, 31a and 31b in the mix door 20 and the mode door 30, Even when a force is applied in the axial direction, it is possible to prevent the door from being bent and prevent the supported portion from falling off the support portion.

  FIG. 4 shows a second embodiment of the door holding structure. In this example, one side 21a of the first supported portion of the mix door 20 is formed in a columnar shape from the side wall portion 22a on the rotation axis toward the outside and the inside of the air conditioning case 2, and toward the outside. The formed portion is rotatably supported by a first bearing hole 50a formed in the case member 2a (first wall) facing the case member 2b (second wall). Further, the other 21b of the first supported portion does not extend from the side wall portion 22b onto the rotation axis, or is slightly raised outward to form a boss portion, and a through hole 25b is formed there. It is constituted by.

  One of the second supported parts 31a of the mode door 30 is not extended on the rotation axis from the side wall part 32a, or is slightly raised outward to form a boss part, through which a through hole 35a is formed. It is configured by forming. Further, the other 31b of the second supported portion is formed in a columnar shape on the rotation axis from the side wall portion 32b toward the outside and inside of the air conditioning case 2, and faces the case member 2a (first wall). The second bearing hole 50b formed in the member 2b (second wall) is rotatably supported.

  The outer diameter of the portion formed inward from the side wall portion 22a of the first supported portion 21a is slightly smaller than the inner diameter of the through hole 35a formed in the first supported portion 31a. Therefore, one of the second supported portions 31a is rotatably mounted on one of the first supported portions 21a. In addition, the outer diameter of the portion formed inward from the side wall portion 32b of the other 31b of the second supported portion is larger than the inner diameter of the through hole 25b formed in the other 21b of the first supported portion. Therefore, the other 21b of the first supported portion is rotatably mounted on the other 31b of the second supported portion.

  In addition, 51a is a lever member which is attached to one side 21a of the first supported portion from the outside of the air conditioning case 2 and applies rotational power to the mix door 20, and 51b is a second member from the outside of the air conditioning case 2. It is a lever member that is attached to the other supported portion 31 b and applies rotational power to the mode door 30.

  In the above configuration, in order to assemble the mix door 20 and the mode door 30, as shown in FIG. 5A, the mix door 20 and the mode door 30 are connected to each other supported portion (first supported portion). 21a, 21b and the second supported portions 31a, 31b) are made to face each other, and from this state, the supported portions (21a, 21b) of the mix door 20 and the supported portions (31a, 31b) of the mode door 30 The doors are shifted in the axial direction so that they are aligned in the axial direction (FIG. 5B), and then one door (mode door 30) is replaced with the other door (mixed door 20). The second supported part 31a is moved close to the first supported part 21a in the axial direction by being moved so as to overlap in the axial direction, and the second supported part 31b The other of the first supported parts Along the axial direction to approach the same direction 1b.

  Then, one of the second supported parts 31a is sheathed on one of the first supported parts 21a (the one 21a of the first supported part is inserted into the through hole 35a of the one 31a of the second supported part. In addition, the other 31b of the second supported portion is inserted into the through hole 25b of the other 21b of the first supported portion (the other 21b of the first supported portion is inserted into the other 31b of the second supported portion). The mix door 20 and the mode door 30 are temporarily assembled so as to be rotatable with respect to each other on the coaxial line (FIG. 5C).

  After that, the case members 2a and 2b divided into left and right are brought close to each other from the outside in the rotation axis direction, and one of the first supported portions 21a is inserted into the first bearing hole 50a of the case member 2a, and the second The other supported portion 31b is inserted into the second bearing hole 50b of the case member 2b (FIG. 5D).

  Therefore, also in the above-described configuration, when the mix door 20 and the mode door 30 are temporarily assembled, the first bearing hole 50a is formed such that the one 31a of the second supported portion is connected to the one 21a of the first supported portion. Is supported along the vertical line (along the axial direction of the first bearing hole 50a), and the other 21b of the first supported part is supported on the other 31b of the second supported part by the second bearing hole. Since it is supported along the vertical line from 50b (along the axial direction of the second bearing hole 50b), it is necessary to insert the second supported portion from the outside in the radial direction with respect to the first supported portion. It is not necessary to insert the first supported portion from the outside in the radial direction with respect to the second supported portion, and no force is applied to each supported portion 21a, 21b, 31a, 31b from the radial direction. . For this reason, each supported part 21a, 21b, 31a, 31b is prevented from bending in the radial direction, and the smooth rotation of the door is not hindered after assembly.

  Moreover, since the ribs 24 and 34 are constructed between the pair of side wall portions in the vicinity of the supported portions 21a, 21b, 31a and 31b in the mix door 20 and the mode door 30, Even when a force is applied in the axial direction, it is possible to prevent the door from being bent and prevent the supported portion from falling off the support portion.

  FIG. 6 shows a third embodiment of the door holding structure. In this example, one of the first supported parts 21a of the mix door 20 is formed in a cylindrical shape from the side wall part 22a toward the outside of the air conditioning case 2 on the rotation axis, and the case member 2b (second And a first bearing hole 50a formed in the case member 2a (first wall) facing the wall. Also, the other 21b of the first supported portion is not extended from the side wall portion 22b on the rotation axis, or is slightly raised outward to form a boss portion, and a through hole 25b is formed there. Is made up of.

  One of the second supported parts 31 a of the mode door 30 is formed in a columnar shape from the side wall part 32 a toward the outside of the air conditioning case 2 on the rotation axis. Further, the other 31b of the second supported portion is formed in a columnar shape on the rotation axis from the side wall portion 32b toward the outside and inside of the air conditioning case 2, and faces the case member 2a (first wall). The second bearing hole 50b formed in the member 2b (second wall) is rotatably supported.

  The outer diameter of one of the second supported parts 31a is slightly smaller than the inner diameter of the cylindrical hole 25a formed in one of the first supported parts 21a. One of the parts 31a is rotatably inserted into the cylindrical hole 25a of the one 21a of the first supported part. Here, the axial length of the first supported portion 21a is longer than the axial length of the second supported portion 31a, and the second supported portion 31a The range of the cylindrical hole 25a to be inserted is at least circular in cross section.

  In addition, the outer diameter of the portion formed inward from the side wall portion 32b of the other 31b of the second supported portion is larger than the inner diameter of the through hole 25b formed in the other 21b of the first supported portion. Therefore, the other 21b of the first supported portion is rotatably mounted on the other 31b of the second supported portion.

  In addition, 51a is a lever member which is attached to one side 21a of the first supported portion from the outside of the air conditioning case 2 and applies rotational power to the mix door 20, and 51b is a second member from the outside of the air conditioning case 2. It is a lever member that is attached to the other supported portion 31 b and applies rotational power to the mode door 30.

  In the above configuration, in order to assemble the mix door 20 and the mode door 30, as shown in FIG. 7A, the mix door 20 and the mode door 30 are connected to each other supported portion (first supported portion). 21a, 21b and the second supported portions 31a, 31b) are made to face each other, and from this state, the supported portions (21a, 21b) of the mix door 20 and the supported portions (31a, 31b) of the mode door 30 The doors are shifted in the axial direction so that they are aligned in the axial direction (FIG. 7B), and then one door (mode door 30) is replaced with the other door (mixed door 20). The second supported part 31a is moved close to the first supported part 21a in the axial direction by being moved so as to overlap in the axial direction, and the second supported part 31b The other of the first supported parts Along the axial direction to approach the same direction 1b.

  Then, the one 31a of the second supported part is inserted into the cylindrical hole 25a of the one 21a of the first supported part (the one 21a of the first supported part is attached to the one 31a of the second supported part). In addition, the other 31b of the second supported portion is inserted into the through hole 25b of the other 21b of the first supported portion (the other 21b of the first supported portion is inserted into the other 31b of the second supported portion). , The mix door 20 and the mode door 30 are temporarily assembled so as to be rotatable with respect to each other on the coaxial line (FIG. 7C).

  After that, the case members 2a and 2b divided into left and right are brought close to each other from the outside in the rotation axis direction, and one of the first supported portions 21a is inserted into the first bearing hole 50a of the case member 2a, and the second The other supported portion 31b is inserted into the second bearing hole 50b of the case member 2b (FIG. 7D).

  Therefore, also in the above-described configuration, when the mix door 20 and the mode door 30 are temporarily assembled, the first bearing hole 50a is formed such that the one 31a of the second supported portion is connected to the one 21a of the first supported portion. Is supported along the vertical line (along the axial direction of the first bearing hole 50a), and the other 21b of the first supported part is supported on the other 31b of the second supported part by the second bearing hole. Since it is supported along the vertical line from 50b (along the axial direction of the second bearing hole 50b), it is necessary to insert the second supported portion from the outside in the radial direction with respect to the first supported portion. It is not necessary to insert the first supported portion from the outside in the radial direction with respect to the second supported portion, and no force is applied to each supported portion 21a, 21b, 31a, 31b from the radial direction. . For this reason, each supported part 21a, 21b, 31a, 31b is prevented from bending in the radial direction, and the smooth rotation of the door is not hindered after assembly.

  Moreover, since the ribs 24 and 34 are constructed between the pair of side wall portions in the vicinity of the supported portions 21a, 21b, 31a and 31b in the mix door 20 and the mode door 30, Even when a force is applied in the axial direction, it is possible to prevent the door from being bent and prevent the supported portion from falling off the support portion.

  FIG. 8 shows a fourth embodiment of the door holding structure. In this example, one side 21a of the first supported portion of the mix door 20 is formed in a columnar shape from the side wall portion 22a on the rotation axis toward the outside and the inside of the air conditioning case 2, and toward the outside. The formed portion is rotatably supported by a first bearing hole 50a formed in the case member 2a (first wall) facing the case member 2b (second wall). Further, the other 21b of the first supported portion is formed in a columnar shape from the side wall portion 22b toward the outside of the air conditioning case 2 on the rotation axis.

  One of the second supported parts 31a of the mode door 30 is not extended on the rotation axis from the side wall part 32a, or is slightly raised outward to form a boss part, through which a through hole 35a is formed. It is configured by forming. Further, the other 31b of the second supported portion is formed in a cylindrical shape from the side wall portion 32b toward the outside of the air conditioning case 2 on the rotation axis, and faces the case member 2a (first wall). The second bearing hole 50b formed in the member 2b (second wall) is rotatably supported.

  The outer diameter of the portion formed inward from the side wall portion 22a of the first supported portion 21a is slightly smaller than the inner diameter of the through hole 35a formed in the first supported portion 31a. Therefore, one of the second supported portions 31a is rotatably mounted on one of the first supported portions 21a. In addition, the outer diameter of the other 21b of the first supported portion is formed slightly smaller than the inner diameter of the cylindrical hole 35b formed in the other 31b of the second supported portion. The other 21b of the supported part is rotatably inserted into the cylindrical hole 35b of the other 31b of the second supported part. Here, the axial length of the other 31b of the second supported portion is formed longer than the axial length of the other 21b of the first supported portion, and the other 21b of the first supported portion is The range of the cylindrical hole 35b to be inserted is at least circular in cross section.

  In addition, 51a is a lever member which is attached to one side 21a of the first supported portion from the outside of the air conditioning case 2 and applies rotational power to the mix door 20, and 51b is a second member from the outside of the air conditioning case 2. It is a lever member that is attached to the other supported portion 31 b and applies rotational power to the mode door 30.

  In the above configuration, in order to assemble the mix door 20 and the mode door 30, as shown in FIG. 9A, the mix door 20 and the mode door 30 are connected to each other supported portion (first supported portion). 21a, 21b and the second supported portions 31a, 31b) are made to face each other, and from this state, the supported portions (21a, 21b) of the mix door 20 and the supported portions (31a, 31b) of the mode door 30 The doors are shifted in the axial direction so that they are aligned in the axial direction (FIG. 9B), and then one door (mode door 30) is replaced with the other door (mixed door 20). The second supported part 31a is moved close to the first supported part 21a in the axial direction by being moved so as to overlap in the axial direction, and the second supported part 31b The other of the first supported parts Along the axial direction to approach the same direction 1b.

  Then, one side 31a of the second supported part is externally mounted on one side 21a of the first supported part (one side 21a of the first supported part is inserted into the through hole 35a of one side 31a of the second supported part. In addition, the other 31b of the second supported portion is placed on the other 21b of the first supported portion and the exterior (the other 21b of the first supported portion is replaced with the cylindrical hole 35b of the other 31b of the second supported portion). 9), the mix door 20 and the mode door 30 are temporarily assembled so as to be rotatable with respect to each other on a coaxial line (FIG. 9C).

  After that, the case members 2a and 2b divided into left and right are brought close to each other from the outside in the rotation axis direction, and one of the first supported portions 21a is inserted into the first bearing hole 50a of the case member 2a, and the second The other supported portion 31b is inserted into the second bearing hole 50b of the case member 2b (FIG. 9D).

  Therefore, also in the above-described configuration, when the mix door 20 and the mode door 30 are temporarily assembled, the first bearing hole 50a is formed such that the one 31a of the second supported portion is connected to the one 21a of the first supported portion. Is supported along the vertical line (along the axial direction of the first bearing hole 50a), and the other 21b of the first supported part is supported on the other 31b of the second supported part by the second bearing hole. Since it is supported along the vertical line from 50b (along the axial direction of the second bearing hole 50b), it is necessary to insert the second supported portion from the outside in the radial direction with respect to the first supported portion. It is not necessary to insert the first supported portion from the outside in the radial direction with respect to the second supported portion, and no force is applied to each supported portion 21a, 21b, 31a, 31b from the radial direction. . For this reason, each supported part 21a, 21b. 31a and 31b are prevented from bending in the radial direction, and smooth rotation of the door is not hindered after assembly.

Further, the mixed door 20 and the mode door 30 have respective supported portions 21a, 21b,
Since the ribs 24 and 34 are provided between the pair of side wall portions in the vicinity of 31a and 31b, even when force is applied to the side wall portion in the axial direction, the door is not bent, and the supported portion is the supporting portion It is possible to prevent falling off.

Other examples

  Up to this point, an example has been described in which rotary doors are used as the mix door 20 (first door) and the mode door 30 (second door). However, the mix door and the mode door are connected to the axis of each supported part. Alternatively, it may be configured by a plate door including a plate-like portion extending substantially in parallel, and the above-described configuration of the supported portion may be similarly adopted.

  Moreover, although the door holding structure has been described as an example used in an air conditioning unit including two heat exchangers, a cooling heat exchanger (evaporator 7) and a heating heat exchanger (heater core 8), It may be used in an air conditioning unit that is provided with only a heat exchange for heating without a heat exchanger for heating, and that adjusts the temperature with the introduced air that bypasses the heating heat exchanger and the air that has passed through the heating heat exchanger.

  Furthermore, in the above description, an example in which a hot water heater using engine cooling water is used as the heater core 8 has been described. However, the heater core 8 may be replaced with a PTC heater or a heat radiator using a known heat pump, or may be used in combination.

DESCRIPTION OF SYMBOLS 1 Air conditioning unit 2 Air conditioning case 2a, 2b Case member 20 Mix door 21a 1st supported part (one of the 1st supported parts)
21b First supported portion (the other of the first supported portions)
22a, 22b Side wall part 23 Closure part 30 Mode door 31a Second supported part (one of the second supported parts)
31b Second supported portion (the other of the second supported portions)
32a, 32b Side wall portion 33 Closure portion 24, 34 Rib 50a First bearing hole 50b Second bearing hole

Claims (5)

A first door having a first supported portion forming a pair and a second door having a second supported portion forming a pair, between the first wall and the second wall facing each other; A door holding structure in which the first door and the second door are arranged,
One of the first supported parts is rotatably supported by a first bearing hole formed in the first wall,
In the door holding structure in which the other of the second supported parts is rotatably supported by a second bearing hole formed in the second wall,
The one is the second supported portion, wherein the first supported along the perpendicular line from the first bearing hole in one of the supported portion, rotatable about an axis of the first bearing hole And can be inserted or packaged on one of the first supported parts from between the pair of first supported parts ,
The other of the first supported portion, the second is supported along a vertical line from said second bearing hole in the other of the supported portion, rotatable about an axis of the second bearing hole And can be inserted or packaged between the pair of second supported parts to the other of the second supported parts .
A door holding structure for a vehicle air conditioner.
The first door and the second door include a pair of side wall portions that extend substantially perpendicular to each supported portion, and a closing portion that connects between the pair of side wall portions. The door holding structure for a vehicle air conditioner according to claim 1, wherein the door holding structure is a rotary door.   The door holding structure for a vehicle air conditioner according to claim 2, wherein a rib is provided between the pair of side wall portions in the vicinity of the supported portion.   2. The vehicle according to claim 1, wherein the first door and the second door are plate doors each having a plate-like portion extending substantially parallel to an axis of each supported portion. Air conditioner door holding structure. The first wall and the second wall are air conditioning cases in which an air flow path is formed,
The vehicle air conditioner provided with the door holding structure according to any one of claims 1 to 4, wherein the first door and the second door are arranged in the air flow path.

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