JP2016007873A - Air conditioner for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner for a vehicle, which can improve layout performance while being prevented from increasing in weight and in size.SOLUTION: In an air conditioner 10 for a vehicle, a bracket 18 is provided on an outer wall surface 12a of an air conditioning case 12, and in a space 46 between the bracket 18 and the outer wall surface 12a is provided a driving mechanism 16. A driving gear 32 of the driving mechanism 16 is provided rotatably on a first attachment portion 36 of the bracket 18, and a pin 56 provided in an arm portion 54 of the gear is protruded toward a surface 18a through a penetration hole 40 of the bracket 18. With the pin 56 of the driving gear 32 is engaged a circular portion 64 of an operation table 58 for switching modes for blowing air into a vehicle interior, and the driving gear 32 is turned by advancement and retraction of the operation table 58 along a shaft direction so as turn a damper 14.

Description

  The present invention relates to a vehicle air conditioner that is mounted on a vehicle and that adjusts the temperature of the vehicle interior by blowing air that has been temperature-adjusted by a heat exchanger into the vehicle interior.

  2. Description of the Related Art Conventionally, a vehicle air conditioner mounted on a vehicle, for example, takes air inside and outside by an air blower into an air conditioning case that forms an air passage, and is cooled by an evaporator that is a cooling means and a heater core that is a heating means. After the heated air is mixed at a desired mixing ratio in the air conditioning case by driving the air mix door, for example, air is blown from the plurality of openings provided in the air conditioning case into the vehicle interior through the air duct. By doing so, the temperature is adjusted.

  In the vehicle air conditioner as described above, for example, as disclosed in Patent Document 1, a mode damper for switching the air blowing mode to the vehicle interior is provided inside the air conditioning case, and the operation lever in the vehicle interior is operated by an occupant. Is operated to move the operation cable forward and backward along the longitudinal direction, and by rotating the link plate connected to the mode damper, the mode damper is rotated and the communication state of the air passage is switched.

JP 2002-46454 A

  The operation cable and the link plate as described above are generally provided on the outer wall surface of the air conditioning case. However, the operation cable is moved along the longitudinal direction according to the operation of the occupant. Another part cannot be placed. For this reason, the layout of other members provided around the operation cable is restricted, and the other member may be increased in size or weight in order to avoid the route of the operation cable.

  The present invention has been made in view of the above problems, and an object thereof is to provide a vehicle air conditioner capable of improving layout performance while preventing an increase in weight and an increase in size.

In order to achieve the above object, the present invention provides an air conditioner for a vehicle having an air conditioning case and a link structure for driving a damper in the air conditioning case by an operation cable.
The link structure includes a link member that drives the damper,
A holding member fixed to the side surface of the air conditioning case and holding the link member;
Have
The link member is disposed between the holding member and the air conditioning case, the link member has a locking portion for locking the operation cable, and the operation cable is locked on the side opposite to the link member with the holding member interposed therebetween. It is characterized by being locked to the part.

  According to the present invention, the link member of the link structure is held by the holding member fixed to the side surface of the air conditioning case, and is held between the holding member and the side surface of the air conditioning case. The operation cable is locked at a position opposite to the link member across the holding member.

  Therefore, there is no need to route the operation cable between the holding member where the link member is arranged and the side surface of the air conditioning case, and the operation cable can be passed outside the holding member with relatively few layout restrictions. As a result, in the vehicle air conditioner, it is avoided that the layout of the peripheral members is restricted in order to avoid the route of the operation cable, so that the layout can be improved and the other peripheral members are not affected. It is possible to prevent an increase in weight and an increase in size without forcing a necessary shape change.

Further, the present invention is an air conditioner for a vehicle having an air conditioning case and a link structure for driving a damper in the air conditioning case by an operation cable.
The link structure includes a plurality of link members that drive the damper,
A holding member that is fixed to the side surface of the air conditioning case and holds the first link member among the plurality of link members;
Have
Of the plurality of link members, the second link member is disposed between the holding member and the air conditioning case,
The second link member has a locking portion for locking the operation cable, and the operation cable is locked on the side opposite to the second link member with the holding member interposed therebetween.

  According to the present invention, among the plurality of link members constituting the link structure, the first link member is held by the holding member fixed to the side surface of the air conditioning case, and the second link member is the holding member, the air conditioning case, The operation cable is locked to the locking portion of the second link member at a position opposite to the second link member across the holding member.

  Therefore, there is no need to route an operation cable between the holding member on which the second link member is arranged and the side surface of the air conditioning case, and the operation cable can be passed outside the holding member with relatively few layout restrictions. It becomes. As a result, in the vehicle air conditioner, it is avoided that the layout of the peripheral members is restricted in order to avoid the route of the operation cable, so that the layout can be improved and the other peripheral members are not affected. It is possible to prevent an increase in weight and an increase in size without forcing a necessary shape change.

  Further, the holding member has a hole portion through which the locking portion passes through the holding member, so that the holding member is linked in the width direction of the vehicle air conditioner as compared with the case where the locking portion is provided outside the holding member. The size of the member and the holding member can be reduced.

  Furthermore, the second link member may be held in the air conditioning case.

  Furthermore, since the holding member is held in a state having a space between the air conditioning case and the link member is arranged in the space, the link member can be arranged using the space, so that the space is efficiently used. Therefore, it is possible to suppress the increase in size of the vehicle air conditioner.

  In addition, since the holding member has a fixing portion that fixes the operation cable so as to be movable back and forth along the axial direction, the operation cable can be held at substantially the same height as the locking portion of the link member. The operability when the cable moves forward and backward can be improved.

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

  That is, the link member of the link structure is fixed to the holding member and is held between the holding member and the side surface of the air conditioning case, and the engaging portion of the link member is opposite to the link member with the holding member interposed therebetween. The operation cable is locked at the position. Therefore, it is not necessary to route an operation cable between the holding member on which the link member is disposed and the side surface of the air conditioning case, and the operation cable can be passed outside the holding member with relatively few layout restrictions. As a result, in the vehicle air conditioner, it is avoided that the layout of the peripheral members is restricted in order to avoid the route of the operation cable, so that the layout can be improved and the other peripheral members are not affected. It is possible to prevent an increase in weight and an increase in size without forcing a necessary shape change.

1 is an overall side view of a vehicle air conditioner according to an embodiment of the present invention. FIG. 2 is an enlarged side view of the vicinity of a drive mechanism provided in the air conditioning case of FIG. 1. FIG. 3 is a bottom view of the drive mechanism of FIG. 2 as viewed from below. 4A is a side view showing a drive mechanism according to a modification, and FIG. 4B is a bottom view of the drive mechanism of FIG. 4A as viewed from below.

  DESCRIPTION OF EMBODIMENTS Preferred embodiments of a vehicle air conditioner according to the present invention will be described in detail below with reference to the accompanying drawings. In FIG. 1, reference numeral 10 indicates a vehicle air conditioner according to an embodiment of the present invention. In the following description, the right side (arrow A direction) of the vehicle air conditioner 10 shown in FIG. 1 will be described as the rear side of the vehicle, and the left side (arrow B direction) will be described as the front side of the vehicle.

  As shown in FIG. 1, the vehicle air conditioner 10 includes a plurality of air conditioning cases 12 that form air passages, and a plurality of air flows that are provided inside the air conditioning case 12 and circulate through the passages. And a drive mechanism (link structure) 16 for rotating the damper 14.

  In the air conditioning case 12, an evaporator and a heater core (not shown) are provided inside the air conditioning case 12 so as to be spaced apart from each other by a predetermined distance, and the air flowing through the passage is cooled by the evaporator, while the air flowing through the passage is heated by the heater core. . Then, the cooled cold air and the heated warm air are mixed at a predetermined ratio under the rotating action of the damper, and supplied to the vehicle interior through a blower opening (not shown).

  On the other hand, as shown in FIGS. 1 to 3, a part of the driving mechanism 16 is fixed to the outer wall surface (side surface) 12 a of the air conditioning case 12 via a bracket (holding member) 18. The bracket 18 includes, for example, a main body portion 20 formed in a substantially flat plate shape, and a plurality of leg portions 22 protruding toward the air conditioning case 12 with respect to the main body portion 20. Is fixed by a screw 24 in a state of being in contact with the outer wall surface 12a of the air-conditioning case 12, so that the main body portion 20 is provided substantially parallel to the outer wall surface 12a of the air-conditioning case 12 at a predetermined interval (see FIG. 3).

  For example, the main body 20 is formed in a long shape along the front-rear direction (arrow A, B direction) of the vehicle, and holds an operation cable 58, which will be described later, near one end on the vehicle rear side (arrow A direction). A possible cable fixing part (fixing part) 26 is formed.

  The cable fixing portion 26 is provided on a surface 18a (see FIG. 3) that is opposite to the air conditioning case 12 side in the main body portion 20, and is formed in a wall shape standing on the surface 18a. The cable fixing portion 26 includes a holding portion 28 that extends along the front-rear direction of the vehicle (the directions of arrows A and B), and is formed in the middle along the axial direction of the holding portion 28 and is wider than the holding portion 28. The both end portions along the axial direction of the holding portion 28 are respectively opened. The widened portion 30 is provided in the vicinity of the other end portion along the axial direction of the holding portion 28.

  In addition, first and second mounting portions 36 and 38 that rotatably support the drive gear (link member) 32 and the rotary plate 34 of the drive mechanism 16 are formed in a substantially central portion along the longitudinal direction of the main body portion 20. In addition, a through hole (hole) 40 that is opened in a substantially arc shape is formed at a position below the first mounting portion 36. The first and second attachment portions 36 and 38 are each formed in a substantially circular shape. The first attachment portion 36 is on one end side of the main body portion 20, and the second attachment portion 38 is on the other end portion of the main body portion 20. And spaced apart from each other by a predetermined distance.

  The through hole 40 is formed with a predetermined radius with respect to the center of the first mounting portion 36, and is formed in a circular arc shape having a predetermined width in the radial direction and the circumferential direction. And the pin (locking part) 56 of the drive gear 32 mentioned later is penetrated by the through-hole 40. As shown in FIG. Further, one end portion of the through hole 40 is arranged at a position that is substantially straight so as to face the other end portion of the cable fixing portion 26.

  Further, a third attachment portion 44 that rotatably supports the link arm 42 of the drive mechanism 16 is formed in the vicinity of the other end portion of the bracket 18, and the third attachment portion 44 is predetermined with respect to the second attachment portion 38. They are spaced apart.

  The drive mechanism 16 is provided in a space 46 (see FIG. 3) between the outer wall surface 12 a of the air conditioning case 12 and the bracket 18, for example, a drive gear 32 that is rotatably mounted at a substantially central portion of the bracket 18. , A rotation plate 34 adjacent to the drive gear 32, and a link arm 42 that engages with a link groove 48 of the rotation plate 34 and rotates the damper 14.

  The drive gear 32 includes, for example, a first shaft portion 50 that is mounted on the first mounting portion 36 of the bracket 18, and an arc-shaped first gear portion 52 that expands radially outward with respect to the first shaft portion 50. And an arm portion 54 formed on the opposite side of the first gear portion 52 with the first shaft portion 50 as a center. The drive gear 32 is rotatably supported by the first attachment portion 36 at the end of the first shaft portion 50 provided at the center thereof.

  The first gear portion 52 is provided with a plurality of gears along the outer peripheral surface thereof, and meshes with a second gear portion 70 described later of the rotating plate 34.

  The arm portion 54 protrudes in a straight line in a radially outward direction with respect to the outer peripheral surface of the first shaft portion 50, and at the tip of the arm portion 54, the axial direction of the first shaft portion 50 (arrow C1 in FIG. 3). , C2 direction). The pin 56 is formed, for example, substantially parallel to the first shaft portion 50 and protrudes by a predetermined length through the through hole 40 of the bracket 18 toward the surface 18a of the bracket 18 (in the direction of arrow C1). The end of the operation cable 58 connected to an operation lever (not shown) that can be operated by the passenger is hooked on the pin 56 from the surface 18a side.

  That is, when the drive gear 32 rotates around the first shaft portion 50, as shown in FIG. 2, since the through hole 40 is opened in a shape corresponding to the movement locus of the pin 56, the pin 56 is It moves along the through hole 40 and does not come into contact with the bracket 18. In other words, most of the drive gear 32 is provided in the space 46 on the back surface 18b side (arrow C2 direction) of the bracket 18, and only the pin 56 is on the surface 18a side (arrow C1 direction) of the bracket 18. It is provided to become.

  The operation cable 58 includes, for example, a cable portion 60 made of a wire having a predetermined length, and a holder 62 provided in the vicinity of one end of the cable portion 60. An annular portion 64 is formed and hooked by inserting the pin 56 of the drive gear 32 into the inside. On the other hand, the other end of the cable part 60 is connected to an operation lever (not shown) in the vehicle compartment.

  The holder 62 is formed of, for example, a cylindrical body into which the cable portion 60 is inserted, and has a rib 66 protruding from the outer peripheral surface to the outer peripheral side. Then, in a state where one end of the cable portion 60 is inserted into the pin 56, the holder 62 is inserted into the cable fixing portion 26 of the bracket 18 and the rib 66 is inserted into the widened portion 30. As a result, the holder 62 is fixed to the cable fixing portion 26 and is held without being relatively displaced with respect to the bracket 18 even when the cable portion 60 moves along the axial direction.

  The operation cable 58 is pulled or pushed out along the longitudinal direction by operating an operation lever by an unillustrated occupant, and accordingly, the arm of the drive gear 32 is driven by the driving force applied to the pin 56 from the operation cable 58. The portion 54 rotates about the first shaft portion 50 by a predetermined angle. The operation cable 58 is held substantially parallel to the surface 18a of the bracket 18 at a predetermined interval, and is held so as to have substantially the same height as the pin 56.

  The rotating plate 34 is formed in a disc shape, and is formed so as to face the back surface 18b of the bracket 18 in the vicinity of the second shaft portion 68 attached to the second mounting portion 38 of the bracket 18 formed in the center and in the vicinity of the outer edge portion. A second gear portion 70 having a plurality of gears is provided on the outer peripheral surface of the second shaft portion 68 and meshes with the first gear portion 52 of the drive gear 32. An engagement pin 72 (to be described later) of the link arm 42 is inserted into the link groove 48.

  Then, the drive gear 32 is rotated by the operation of the operation cable 58, and the rotating plate 34 is engaged with the first gear portion 52 and the second gear portion 70 in a predetermined direction with the second shaft portion 68 as a center at a predetermined angle. Rotate only.

  As shown in FIG. 2, the link arm 42 has a third shaft portion 74 that is rotatably supported with respect to the third mounting portion 44 of the bracket 18, and a radius with respect to the outer peripheral surface of the third shaft portion 74. The first arm portion 76 projects outwardly in a straight line, and the second arm portion 78 extends in the direction opposite to the first arm portion 76 around the third shaft portion 74. An engaging pin 72 substantially parallel to the third shaft portion 74 is provided at the tip of the first arm portion 76 and is inserted into the link groove 48 of the rotating plate 34. A link pin 80 is formed at the tip of the second arm portion 78, and is connected to the support shaft 84 of the damper 14 via the link member 82.

  Then, the drive gear 32 is rotated by the operation of the operation cable 58, and the rotation plate 34 is rotated by a predetermined angle in a predetermined direction, thereby the link arm having the engagement pin 72 inserted in the link groove 48. 42 rotates around the third shaft portion 74, and accordingly, the support shaft 84 of the damper 14 is rotated via the link member 82. Thereby, switching of the ventilation mode by the damper 14 is performed. In this case, the damper 14 is a mode switching damper capable of switching the air blowing mode.

  The vehicle air conditioner 10 according to the embodiment of the present invention is basically configured as described above. Next, a case where the operation cable 58 is assembled to the bracket 18 and the drive gear 32 will be described. .

  First, after attaching the second shaft portion 68 of the rotating plate 34 to the second mounting portion 38 from the back surface 18b side of the bracket 18 (arrow C2 direction), the third shaft portion 74 of the link arm 42 is changed to the third mounting portion 44. At the same time, the first shaft portion 50 of the drive gear 32 is attached to the first attachment portion 36, and the pin 56 is inserted into the through hole 40. As a result, the tip end side of the pin 56 protrudes toward the surface 18 a side of the bracket 18.

  And after fixing the bracket 18 with which the drive mechanism 16 was assembled | attached to the outer wall surface 12a of the air-conditioning case 12, the holder 62 of the operation cable 58 is fixed to the cable fixing | fixed part 26, and FIG.2 and FIG.3 shows. Then, the annular portion 64 of the cable portion 60 is hooked through the through hole 40 onto the pin 56 protruding to the surface 18a side (arrow C1 direction) of the bracket 18.

  Thereby, the assembly of the operation cable 58 to the bracket 18 and the drive gear 32 is completed.

  Thus, the drive mechanism 16 is provided via the bracket 18 on the outer wall surface 12a of the air conditioning case 12 constituting the vehicle air conditioner 10, and the drive mechanism 16 is provided between the bracket 18 and the outer wall surface 12a. The pin 56 of the drive gear 32 is protruded to the surface 18a side (arrow C1 direction) of the bracket 18 through the through hole 40 of the bracket 18 while being arranged in the space 46, and the annular portion 64 of the operation cable 58 is Engaged.

  Therefore, it is not necessary to wire the operation cable 58 on the back surface 18b side (arrow C2 direction) of the bracket 18 on which the drive gear 32 is disposed, and the surface 18a side (arrow C1 direction) of the bracket 18 with relatively few layout restrictions. It is possible to pass the operation cable 58 therethrough. As a result, it is avoided that the layout of the peripheral members is restricted in order to avoid the route of the operation cable 58, the layout can be improved, and unnecessary shape changes are made to other peripheral members. Therefore, it is possible to prevent an increase in weight and an increase in size.

  Further, by allowing the pin 56 of the drive gear 32 to be inserted into the through hole 40 of the bracket 18, the vehicle air conditioner 10 can be compared with the case where the pin is provided on the surface 18 a side (arrow C <b> 1 direction) of the bracket 18. The drive mechanism 16 and the bracket 18 can be downsized in the width direction.

  Furthermore, since the drive mechanism 16 is disposed using the space 46 between the outer wall surface 12a of the air conditioning case 12 and the bracket 18, the space in the width direction of the vehicle air conditioner 10 can be used efficiently. And the enlargement of the vehicle air conditioner 10 can be suppressed.

  Furthermore, the cable fixing portion 26 that can hold the holder 62 of the operation cable 58 is provided at one end portion of the bracket 18, so that the cable portion 60 of the operation cable 58 is substantially at the same height as the pin 56 of the drive gear 32. Since it can hold | maintain, it becomes possible to improve the operativity at the time of this operation cable 58 carrying out forward / backward movement.

  Next, the operation of the vehicle air conditioner 10 in which the operation cable 58 is assembled to the bracket 18 and the drive gear 32 as described above will be described.

  First, when an occupant operates an operation lever (not shown) disposed in the vehicle interior, the cable portion 60 of the operation cable 58 connected to the operation lever moves in the axial direction, and the pin 56 of the drive gear 32 is moved. Extrude or pull. As a result, the drive gear 32 rotates about the first shaft portion 50 by a predetermined angle, and accordingly, the rotating plate 34 in which the first gear portion 52 is engaged with the second gear portion 70 is rotated in the predetermined direction by a predetermined angle. Just tilt.

  As a result, the link arm 42 engaged with the link groove 48 of the rotating plate 34 rotates about the third shaft portion 74, and the damper 14 is interposed via the link member 82 supported by the end portion of the link arm 42. Is rotated by a predetermined angle in the air conditioning case 12. As a result, the air circulation state in the passage of the air conditioning case 12 is switched by the rotated damper 14, and the air blowing mode into the vehicle interior is switched.

  Further, the pin 56 of the drive gear 32 is not limited to the case where the pin 56 protrudes to the surface 18a side (arrow C1 direction) through the through hole 40 of the bracket 18 as described above. For example, as shown in FIGS. 4A and 4B. Like the drive mechanism 100, the drive gear 102 is formed so as to straddle the surface 18a side (arrow C1 direction) and the back surface 18b side (arrow C2 direction) of the bracket 18, and the pin 56 is directly connected to the surface 18a of the bracket 18. You may make it arrange | position to the side (arrow C1 direction).

  The drive gear 102 is mounted from the first divided body 106 on which the first shaft portion 104 is mounted on the first mounting portion 36 from the surface 18a side (arrow C1 direction) and from the back surface 18b side (arrow C2 direction). The second divided body 108 has a divided structure, and the first divided body 106 and the second divided body 108 are mounted so as to sandwich the first attachment portion 36 in the axial direction. Thereby, in the 1st attachment part 36 of the bracket 18, the 1st division body 106 and the 2nd division body 108 rotate as the 1st axial part 104 integrally.

  The first divided body 106 constituting the first shaft portion 104 is formed with an arm portion 54 extending outward in the radial direction, and a pin 56 is provided at the end thereof. On the other hand, the second divided body 108 is formed with an arc-shaped first gear portion 52 whose diameter is increased radially outward with respect to the first shaft portion 104.

  With this configuration, the pin 56 of the drive gear 102 can be disposed on the surface 18a side (in the direction of the arrow C1) of the bracket 18, and therefore the operation cable 58 that is engaged with the pin 56 is wired. In this case, there are relatively few restrictions on the layout, and it is possible to improve the layout by avoiding the occurrence of restrictions on the layout of other peripheral members.

  In addition, the vehicle air conditioner according to the present invention is not limited to the above-described embodiment, and it is needless to say that various configurations can be adopted without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10 ... Vehicle air conditioner 12 ... Air conditioning case 14 ... Damper 16, 100 ... Drive mechanism 18 ... Bracket 18a ... Surface 18b ... Back surface 20 ... Main-body part 26 ... Cable fixing | fixed part 32, 102 ... Drive gear 34 ... Rotating plate 40 ... Through Hole 42 ... Link arm 46 ... Space 54 ... Arm portion 56 ... Pin 58 ... Operation cable 60 ... Cable portion 62 ... Holder 64 ... Ring portion 106 ... First divided body 108 ... Second divided body

Claims (6)

In a vehicle air conditioner having an air conditioning case and a link structure for driving a damper in the air conditioning case by an operation cable,
The link structure includes a link member that drives the damper;
A holding member that is fixed to a side surface of the air conditioning case and holds the link member;
The link member is disposed between the holding member and the air conditioning case, the link member has a locking portion for locking the operation cable, and the operation cable sandwiches the holding member. The vehicle air conditioner is locked to the locking portion on the side opposite to the link member. In a vehicle air conditioner having an air conditioning case and a link structure for driving a damper in the air conditioning case by an operation cable,
The link structure includes a plurality of link members that drive the damper,
A holding member that is fixed to a side surface of the air conditioning case and holds the first link member among the plurality of link members;
Have
Of the plurality of link members, the second link member is disposed between the holding member and the air conditioning case,
The second link member has a locking portion for locking the operation cable, and the operation cable is locked on the opposite side of the second link member with the holding member interposed therebetween. Air conditioner for vehicles. The vehicle air conditioner according to claim 1,
The vehicle air conditioner, wherein the holding member has a hole portion through which the locking portion passes through the holding member. The vehicle air conditioner according to claim 2,
The vehicle air conditioner, wherein the second link member is held by the air conditioning case. In the vehicle air conditioner according to any one of claims 1 to 4,
The vehicle holding air conditioner, wherein the holding member is held with a space between the holding member and the air conditioning case, and the link member is disposed in the space. In the vehicle air conditioner according to any one of claims 1 to 5,
The vehicle air conditioner according to claim 1, wherein the holding member includes a fixing portion that fixes the operation cable so as to freely advance and retract along the axial direction.

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