JP2015101175A - Damper for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make air flow easy by making a frame body of a damper difficult to hinder an airflow within an air passage.SOLUTION: A strip-shaped plate material 31, which comprises a closing plate part 42, is configured to be brought into a closed state by having the closing plate part 42 turned until crossing an airflow, while being brought into an opened state by having the closing plate part 42 turned to be directed in an airflow direction. A frame body 32 for rotatably supporting the strip-shaped plate material 31 is provided. The frame body 32 is bent toward one side in the airflow direction.

Description

  The present invention relates to an air conditioner damper mounted on, for example, an automobile.

  Conventionally, a vehicle air conditioner includes a casing that houses a cooling heat exchanger and a heating heat exchanger, and in this casing, a cold air passage through which air that has passed through the cooling heat exchanger flows, A hot air passage through which air that has passed through the heat exchanger for heating flows is formed. Further, a damper for opening and closing the cold air passage and the hot air passage is disposed in the casing, and the temperature of the conditioned air is changed by the operation of this damper.

  The damper of Patent Document 1 is configured to connect a frame body disposed in a passage, a plurality of strip plate members disposed inside the frame body and rotatably supported by the frame body, and the strip plate members. And a connecting member. When the strip plate is rotated so as to be along the air flow direction, the damper is opened. On the other hand, when the strip plate is rotated so as to be substantially orthogonal to the air flow, the damper is closed.

JP 2005-319914 A

  By the way, in the air conditioner of patent document 1, since the cold air path and the warm air path are lined up and down, two dampers are also lined up and down so as to correspond to this. The frame of each damper has a shape that extends straight up and down.

  However, in Patent Document 1, the frame of the damper extends straight up and down and is arranged so as to be orthogonal to the air flow in the passage, so that the frame faces the air flow. . For this reason, when a damper is a closed state, there exists a problem that an air flow collides with a damper from the front, and a frame tends to obstruct air flow.

  The present invention has been made in view of such a point, and an object of the present invention is to make it easier for the damper to prevent air flow in the air passage and to make air flow easier.

  In order to achieve the above object, in the present invention, the frame is bent so that the frame does not face the air flow.

The first invention is
A plurality of strip-shaped plate members extending in a direction intersecting with the air flow direction of the air passage of the air conditioner are provided in parallel,
The strip-shaped plate member includes a rotating shaft and a closing plate portion that extends in a radial direction of the rotating shaft and closes the air passage, and the closing plate portion faces the air flow direction. In the damper for an air conditioner configured to be in the closed state by rotating until the closed plate portion intersects the air flow, while being in the open state by rotating,
A frame that is disposed in the air passage and is rotatably supported by the belt-like plate member;
The frame body is bent toward one side in the air flow direction.

  According to this configuration, since the frame body does not directly face the air flow in the air passage, air can easily flow downstream along the frame body as compared with the case where the frame body is facing the air, and a smooth flow is formed. The

According to a second invention, in the first invention,
The frame is disposed from the first air passage to the second air passage of the air conditioner, and is formed to be curved with a predetermined curvature in the air flow direction.
The frame body supports a first closing plate portion for closing the first air passage and a second closing plate portion for closing the second air passage.

  According to this configuration, the first air passage and the second air passage of the air conditioner can be opened and closed by the single air conditioner damper. At this time, since the frame is curved, air flows smoothly along the curved shape of the frame.

According to a third invention, in the first invention,
The said frame is bent and formed so that it may protrude toward an air flow direction, It is characterized by the above-mentioned.

  According to this configuration, air flows smoothly along the shape of the frame.

According to a fourth invention, in the third invention,
The frame is arranged from the first air passage to the second air passage of the air conditioner,
The frame body supports a first closing plate portion for closing the first air passage and a second closing plate portion for closing the second air passage,
The bent part of the frame is located in the vicinity of the boundary between the first air passage and the second air passage.

  According to this configuration, since the bent portion of the frame body is located in the vicinity of the boundary between the first air passage and the second air passage, air flows smoothly in both the first air passage and the second air passage. It becomes like this.

According to a fifth invention, in the first invention,
The frame body is formed to be bent so as to protrude toward the upstream side in the air flow direction.

  According to this configuration, it is possible to smoothly flow air from the upstream side toward the downstream side.

A sixth invention is the invention according to any one of the first to fifth aspects,
The plurality of strip-shaped plate members are made of the same member.

  According to this configuration, it is possible to reduce the types of parts constituting the damper for the air conditioner.

  According to the first invention, since the frame body supporting the belt-like plate material is bent toward one side in the air flow direction, the belt-like plate material attached to the frame body so as to be able to rotate obstructs the air flow. It is difficult to make air flow easily.

  According to the second aspect of the invention, the frame disposed from the first air passage to the second air passage is formed so as to bend with a predetermined curvature in the air flow direction. Thus, the air can smoothly flow along the curved shape, and air can be easily flowed.

  According to the third invention, since the frame is bent so as to protrude in the air flow direction, the air flows smoothly along the shape of the frame, thereby facilitating the flow of air. it can.

  According to the fourth invention, since the bent portion of the frame is located in the vicinity of the boundary between the first air passage and the second air passage, the air is smooth in both the first air passage and the second air passage. It becomes easy to flow through the air.

  According to the fifth aspect, air flows smoothly from the upstream side toward the downstream side.

  According to the sixth invention, since the plurality of strip-shaped plate members are the same member, the types of parts can be reduced and the cost can be reduced.

It is a longitudinal cross-sectional view of the air conditioning unit of the vehicle air conditioner which concerns on embodiment of this invention. (A) is a conceptual diagram in case a warm air path is in a fully-closed state, (b) is a conceptual diagram in case a warm air path is in a fully-open state. It is a longitudinal cross-sectional view of a ventilation unit. (A) is a conceptual diagram when the outside air introduction port is in a fully open state, and (b) is a conceptual diagram when the inside air introduction port is in a fully open state. It is a top view of a strip | belt-shaped board | plate material. It is a front view of a strip-shaped board | plate material. It is a bottom view of a strip-shaped board | plate material. It is a right view of a strip-shaped board | plate material. It is a conceptual diagram of the air mix damper which concerns on a modification. It is a schematic block diagram which concerns on another form. It is a schematic block diagram which concerns on another form.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.

  FIG. 1 shows a vehicle air conditioner 1 according to an embodiment of the present invention. The vehicle air conditioner 1 is disposed inside an instrument panel (not shown) provided at the front in a vehicle room such as an automobile. The vehicle air conditioner 1 has a blower unit 70 (shown in FIG. 3) to be described later. The blower unit 70 can select one of the air inside the passenger compartment and the air outside the passenger compartment to blow air as air for air conditioning.

  In the description of this embodiment, the front side of the vehicle is simply referred to as “front”, the rear side of the vehicle is simply referred to as “rear”, the left side of the vehicle is simply referred to as “left”, and the right side of the vehicle is simply referred to as “right”. To do.

  The vehicle air conditioner 1 includes a cooling heat exchanger 10 for cooling air conditioning air, a heating heat exchanger 11 for heating air conditioning air, a differential / vent damper 60, a heat damper 14, an air mix damper (air conditioner). (Equipment damper) 20 and an air conditioning casing 15 for housing them.

  The air conditioning casing 15 is formed with an air inlet 15a for introducing air blown from the blower unit 70, a defroster outlet 15b, a vent outlet 15c, and a heat outlet 15d. The air inlet 15a is opened in the front part of the side wall of the air-conditioning casing 15, and has a shape that is long in the vertical direction in this embodiment.

  The defroster outlet 15 b opens near the center in the front-rear direction in the upper wall portion of the air conditioning casing 15, and extends near the left and right ends of the air conditioning casing 15. The defroster outlet 15b is connected to a defroster nozzle (not shown) formed in the instrument panel via a defroster duct (not shown), and mainly supplies conditioned air to the inner surface of the windshield. Is.

  Further, the vent outlet 15c is opened above the rear wall of the air conditioning casing 15. The vent outlet 15c is connected to a side formed on the instrument panel and a center vent nozzle (not shown) via a vent duct (not shown), and mainly supplies conditioned air to the upper body of the front seat occupant. It is for supply.

  Further, the heat outlet 15d is opened to the lower side of the rear wall portion of the air conditioning casing 15, and is mainly for supplying conditioned air near the feet of the front seat occupant. A duct (not shown) for supplying conditioned air to the vicinity of the feet of the rear seat occupant can also be connected to the heat outlet 15d.

  Inside the air conditioning casing 15, an air passage R through which air introduced from the air inlet 15a flows is formed. The air passage R includes a cold air passage (first air passage) R1, a hot air passage (second air passage) R2, an air mix space R3, a defroster passage R4, a vent passage R5, and a heat passage R6. doing. The upstream end of the cold air passage R1 communicates with the air introduction port 15a. The cold air passage R1 extends in the air conditioning casing 15 toward the rear side to the vicinity of the center in the front-rear direction. A cooling heat exchanger 10 is disposed in the cold air passage R1. The entire amount of air in the cold air passage R1 passes through the cooling heat exchanger 10. Then, the air for air conditioning in the cool air passage R1 is cooled by the cooling heat exchanger 10. That is, the cold air passage R1 is a passage that generates cold air. The downstream end of the cold air passage R1 is branched into two vertically.

  The upstream end of the hot air passage R2 communicates with the lower portion of the downstream end of the cold air passage R1. A heat exchanger 11 for heating is disposed on the upstream side of the warm air passage R2. The entire amount of air in the hot air passage R2 passes through the heating heat exchanger 11. The air for air conditioning in the hot air passage R2 is heated by the heat exchanger 11 for heating. That is, the warm air passage R2 is a passage that generates warm air. The downstream side of the warm air passage R2 is curved upward.

  The air mix space R3 is formed above the warm air passage R2. The upper portion of the downstream end of the cold air passage R1 and the downstream end of the hot air passage R2 communicate with the air mix space R3. The air mix space R3 is a space for mixing the cold air flowing in from the cold air passage R1 and the hot air flowing in from the hot air passage R2 to generate conditioned air having a desired temperature.

  The upstream end of the defroster passage R4 communicates with the air mix space R3. The downstream end of the defroster passage R4 communicates with the defroster outlet 15b. The upstream end of the vent passage R5 communicates with the air mix space R3. The downstream end of the vent passage R5 communicates with the vent outlet 15c. The upstream end of the heat passage R6 communicates with the air mix space R3. The downstream end of the heat passage R6 communicates with the heat outlet 15d.

  A rear-seat vent passage R7 is also formed on the rear side of the air conditioning casing 15. The heat passage R6 is for supplying conditioned air to the feet of the front seat occupant and the rear seat vent passage R7 is for supplying conditioned air to the upper body of the rear seat occupant.

  Although the heat exchanger 10 for cooling is comprised with the refrigerant evaporator of the heat pump apparatus, not only this but various heat exchangers can be used if it can cool the air for an air conditioning. The heat exchanger 10 for cooling is arrange | positioned with the attitude | position which the air passage surface 10a extends to an up-down direction. Upper and lower header tanks 10b and 10c are provided at the upper and lower portions of the cooling heat exchanger 10, respectively. Between these upper and lower header tanks 10b and 10c, a plurality of heat transfer tubes through which refrigerant flows and fins (both not shown) are arranged. Since the air for air conditioning passes through the portion where the fins are disposed, the air passage surface 10a of the cooling heat exchanger 10 is a portion between the upper header tank 10b and the lower header tank 10c.

  Although the heat exchanger 11 for heating is comprised by the heater core through which the cooling water of an engine circulates, if it can heat air for air conditioning, such as not only this but a refrigerant condenser of a heat pump apparatus, for example Good. The heat exchanger 11 for heating is arrange | positioned with the attitude | position which the air passage surface 11a extends to an up-down direction. Upper and lower header tanks 11b and 11c are provided at the upper and lower portions of the heating heat exchanger 11, respectively. Between these upper and lower header tanks 11b and 11c, a plurality of heat transfer tubes through which engine coolant flows and fins (both not shown) are arranged. Since the air for air conditioning passes through the portion where the fins are disposed, the air passage surface 11a of the heat exchanger 11 for heating is a portion between the upper header tank 11b and the lower header tank 11c.

  The air passage surface 11 a of the heating heat exchanger 11 is formed smaller than the air passage surface 10 a of the cooling heat exchanger 10. Specifically, the vertical dimension of the air passage surface 11 a of the heating heat exchanger 11 is shorter than the vertical dimension of the air passage surface 10 a of the cooling heat exchanger 10. The heating heat exchanger 11 is disposed such that the air passage surface 11a faces the lower portion of the air passage surface 10a of the cooling heat exchanger 10. In this embodiment, the air passage surface 10a of the cooling heat exchanger 10 and the air passage surface 11a of the heating heat exchanger 11 are substantially parallel.

  The differential / vent damper 60 is for opening and closing the defroster passage R4 and the vent passage R5. The heat damper 14 is for opening and closing the heat passage R6.

  The differential / vent damper 60 and the heat damper 14 are driven by a blowing direction switching actuator (not shown). Depending on the open / closed state of the differential / vent damper 60 and the heat damper 14, the defroster mode in which the conditioned air blows out from the defroster nozzle, the vent mode blown out from the vent nozzle, the heat mode blown out from the heat outlet 15d, and the bypass blown out from both the vent nozzle and the heat outlet 15d. It is switched to a plurality of blowing modes including a level mode, a differential / heat mode that blows out from both the defroster nozzle and the heat outlet 15d.

  The air mix damper 20 changes the amount of cold air flowing into the air mix space R3 from the cold air passage R1 and the amount of hot air flowing into the air mix space R3 from the hot air passage R2 to generate conditioned air generated in the air mix space R3. It is a damper for adjusting the temperature of the.

  The air mix damper 20 includes a plurality of cold-air side strips 31, a plurality of warm-air-side strips 51, and a frame 32 that rotatably supports the cold-air-side strips 31 and the hot-air-side strips 51. ing. The cold air side belt-shaped plate material 31, the hot air side belt-shaped plate material 51, and the frame 32 are made of resin.

  As shown in FIG.1 and FIG.2, the cold wind side strip | belt-shaped board | plate material 31 is extended in the left-right direction so that it may cross | intersect with the air flow direction of the cold wind path | route R1, and is arranged in parallel by the up-down direction. All the cold wind side belt-like plate materials 31 are made of the same member.

  As shown in FIGS. 5-8, the cold wind side strip | belt-shaped board | plate material 31 is the obstruction board part (1st obstruction | occlusion) extended in the radial direction with the left side rotation axis 40 and the right side rotation axis | shaft 41 provided in the both right and left sides, respectively. Plate portion) 42, and the closing plate portion 42 is also rotated by rotating around the left rotation shaft 40 and the right rotation shaft 41, thereby changing the opening degree of the cool air passage R1. It is configured. 1 and FIG. 2A show a state in which the cold air side strip 31 has the cold air passage R1 fully opened, and FIG. 2B shows a state in which the cold air side strip 31 has the cold air passage R1 fully closed. Show.

  As shown in FIG. 5, the left rotation shaft 40 is formed in a substantially cylindrical shape that protrudes to the left side of the strip-shaped plate material 31. A pair of protrusions 40 a, 40 a are provided on the outer peripheral surface of the left rotation shaft 40 at a predetermined interval in the axial direction of the left rotation shaft 40.

  The left rotation shaft 40 is provided with a connecting portion 40b to which driving means for applying rotational force to the strip-shaped plate material 31 (shown by phantom lines only in FIG. 5) is connected. As the driving means 100, for example, an electric actuator or the like is used, but an operation wire or the like for transmitting an occupant's operating force can also be used.

  The connection part 40b protrudes from the front end part of the left rotation shaft 40 to the left side. The connecting portion 40b is formed by a protrusion having a substantially semicircular cross section obtained by cutting a cylinder extending to the left side of the left rotation shaft 40 along the axial direction thereof. The rotation center of the connecting portion 40b is located concentrically with the rotation center of the left rotation shaft 40.

  The right rotation shaft 41 is formed in a substantially cylindrical shape that protrudes to the right side of the belt-like plate material 31. The outer diameter of the right rotation shaft 41 is set smaller than the outer diameter of the left rotation shaft 40.

  The blocking plate portion 42 has a substantially rectangular shape in plan view. A left rotation shaft 40 and a right rotation shaft 41 are integrally formed on the left edge portion and the right edge portion of the closing plate portion 42, respectively. Of the edge portions 42a and 42b extending in the longitudinal direction of the closing plate portion 42, one edge portion 42a is collinear with the center line X (shown in FIG. 5) of the left rotation shaft 40 and the right rotation shaft 41. Is located.

  Further, the edges of the closing plate portions 42 and 42 adjacent in the vertical direction in the fully closed state are arranged so as to overlap in the thickness direction. That is, in the fully closed state, each strip-shaped plate member 31 is oriented so as to extend vertically, so that one edge portion 42a of the blocking plate portion 42 of each strip-shaped plate member 31 is the other edge portion of the other adjacent blocking plate portion 42. It will be located below 42b.

  Of the closing plate portions 42, 42 adjacent in the vertical direction, the lower closing plate portion 42 of the upper closing plate portion 42 overlaps, that is, the other edge portion 42 b has the lower closing plate portion 42. A step 42c into which one edge 42a is fitted is formed. The depth of the step 42 c is set to be approximately equal to the thickness of one edge 42 a of the closing plate portion 42. Thereby, when fully closed, the surface on the downstream side in the air flow direction of the upper closing plate portion 42 and the surface on the downstream side in the air flow direction of the lower closing plate portion 42 are positioned on substantially the same plane. .

  The portion of the blocking plate portion 42 where the step 42c is formed is thinner than the other portions. As a result, the portion where the step 42c is formed becomes more flexible than the other portions, so that in the fully closed state, the portion 42c is deformed so as to follow the one end portion 42a of the closing plate portion 42 adjacent to the lower side. To do. Thereby, the sealing performance between the strip | belt-shaped board | plate materials 31 and 31 at the time of full closure increases.

  As shown in FIG. 6, a side plate portion 42 e that protrudes in a direction opposite to the protrusion 42 d is provided on the left edge portion of the closing plate portion 42. The side plate portion 42e protrudes substantially perpendicular to the closing plate portion 42, and extends from one edge portion 42a of the closing plate portion 42 to the vicinity of the central portion in the short direction of the closing plate portion 42 as shown in FIG. Is formed. The protruding height of the side plate portion 42e from the closing body portion 42 is set so as to increase toward the central portion in the short direction of the closing plate portion 42.

  The side plate portion 42e is formed with a protruding portion 42f that protrudes in the rotation axis direction. The projecting portion 42f has a cylindrical shape projecting leftward from the left surface of the side plate portion 42e. The center line of the protruding portion 42f is deviated in the radial direction from the rotation center of the left rotation shaft 40.

  The frame body 32 has a substantially rectangular shape disposed from the upper part of the downstream end of the cold air passage R1 to the upstream end of the hot air passage R2, and is held on the inner surface of the air conditioning casing 15. The frame body 32 is formed by integrally forming an upper portion 32a and a lower portion 32b, and a left side portion 32c and a right side portion (not shown). The upper part 32a extends in the left-right direction along the upper surface of the cold air passage R1. The lower portion 32b extends in the left-right direction along the lower surface of the warm air passage R2. The left side portion 32c extends in the vertical direction along the left side surface of the cold air passage R1 and the hot air passage R2, the upper end portion is continuous with the left end portion of the upper portion 32a, and the lower end portion is continuous with the left end portion of the lower portion 32b. Yes. The right side portion extends in the vertical direction along the right side surfaces of the cold air passage R1 and the hot air passage R2, the upper end portion is continuous with the right end portion of the upper portion 32a, and the lower end portion is continuous with the right end portion of the lower portion 32b. .

  A plurality of bearing holes (not shown) into which the right rotation shaft 41 of the cold air side belt-shaped plate 31 is inserted are formed in the right side portion of the frame 32 so as to penetrate in the left-right direction. The bearing holes are arranged at intervals in the vertical direction so as to correspond to the arrangement positions of the cold air side belt-like plate members 31.

  On the left side 32c of the frame 32, a plurality of notches (not shown) are formed in which the left rotation shaft 40 of the strip-shaped plate 31 is inserted in the radial direction. The notches are arranged at intervals similar to the bearing holes. In a state where the left rotation shaft 40 is inserted into the cutout portion of the frame body 32, the edge portion of the cutout portion is fitted between the pair of protrusions 40 a and 40 a of the left rotation shaft 40. In this state, the left rotation shaft 40 is stopped by a stopper member (not shown) so as not to come out of the cutout portion of the frame body 32.

  The hot air side belt-like plate material 51 is configured in the same manner as the cold air side belt-like plate material 31 and has a closing plate portion (second closing plate portion) 52 as shown in FIGS. Moreover, the warm air side strip | belt-shaped board | plate material 51 is similarly supported by the frame 32. FIG. The cold air side belt-like plate material 31 and the hot air side belt-like plate material 51 are interlocked. That is, the connecting portion 40b of the cold air side belt-like plate material 31 and the hot air side beltlike plate material 51 are connected by a link or the like. When the cold air side belt-like plate material 31 is driven by the driving means 100 shown only in FIG.

  The frame body 32 has a shape bent toward the downstream side in the air flow direction. That is, the left side portion 32c and the right side portion (not shown) of the frame body 32 are curved with a predetermined curvature as a whole so that the central portion in the vertical direction is located most downstream in the air flow direction.

  Further, a partition 32m is provided at the center of the frame 32 in the vertical direction so as to correspond to the boundary between the upper end portion of the downstream end of the cool air passage R1 and the upstream end of the hot air passage R2. The partition 32m extends in the left-right direction so as to divide the inside of the frame 32 into two vertically and is integrally formed with the left side 32c and the right side. The cold air side band-shaped plate material 31 is disposed above the partition portion 32m, and the hot air side band-shaped plate material 51 is disposed below.

  The differential / vent switching damper 60 includes a defroster side strip 61 for opening and closing the defroster outlet 15b, a vent side strip 62 for opening and closing the vent outlet 15c, the defroster side strip 61 and the vent side. And a frame 63 that rotatably supports the belt-like plate member 62. The frame body 63 is configured in the same manner as the frame body 32 of the air mix damper 20, and is arranged to extend in the front-rear direction. The frame 63 is curved with a predetermined curvature as a whole so that the central portion in the front-rear direction of the frame body 63 is positioned most upstream (upward) in the air flow direction. Further, the differential / vent switching damper 60 operates in the same manner as the air mix damper 20, and as shown in FIG. 1, the defroster outlet 15b is fully opened and the vent outlet 15c is fully closed. The air outlet 15b is fully closed and the vent air outlet 15c is fully opened.

  In addition, like the modification shown in FIG. 9, the frame body 32 may be bent so as to protrude in the air flow direction. That is, the left side portion 32c and the right side portion (not shown) of the frame body 32 are bent so that the center portion in the vertical direction is located most downstream in the air flow direction, and the bent portion of the frame body 32 is a cold air passage. It is located in the vicinity of the boundary between the upper portion of the downstream end of R1 and the warm air passage R2.

  In addition, as shown in FIG. 3, the blower unit 70 includes a blower fan 71 and a blower casing 72 that houses the blower fan 71. The blower fan 71 is a centrifugal fan and is accommodated in the lower side of the blower casing 72. An air outlet 72 a connected to the air inlet 15 of the air conditioning casing 15 is formed in the lower side wall portion of the blower casing 72.

  The front wall portion of the upper wall portion of the blower casing 72 is inclined downward toward the front and the rear portion is inclined downward toward the rear so that the center portion in the front-rear direction is located at the top. An air introduction hole 72b serving as an air passage for introducing air outside the vehicle compartment is formed on the front side of the upper wall portion of the blower casing 72, and air for introducing air inside the vehicle compartment is formed on the rear side of the upper wall portion. An inside air introduction hole 72c serving as a passage is formed.

  An air passage S through which air introduced from at least one of the outside air introduction hole 72b and the inside air introduction hole 72c flows is formed inside the blower casing 72. The upper end portion, which is the upstream end of the air passage S, is branched into two in the front-rear direction and connected to the outside air introduction hole 72b and the inside air introduction hole 72c. The air passage S extends downward, then extends so as to surround the outer periphery of the blower fan 71, and has a downstream end connected to the air outlet 72a.

  A motor 73 for driving the blower fan 71 is disposed on the bottom wall portion of the blower casing 72. Further, an air filter 74 is disposed above the blower fan 71 inside the blower casing 72.

  The blower unit 70 includes an inside / outside air switching damper 75. The inside / outside air switching damper 75 is for opening and closing the outside air introduction hole 72b and the inside air introduction hole 72c. That is, the inside / outside air switching damper 75 can rotate the outside air side belt member 76 and the inside air side belt member 77 configured in the same manner as the cold air side belt member 31, and the outside air side belt member 76 and the inside air side belt member 77. And one frame 78 to be supported.

  The outside air side strip member 76 is for opening and closing the outside air introduction hole 72b, and the inside air side strip member 77 is for opening and closing the inside air introduction hole 72c. The frame body 78 is formed by integrally forming a front portion 78a and a rear portion 78b, and a left side portion 78c and a right side portion (not shown). The front portion 78a is a portion extending in the left-right direction along the front edge of the outside air introduction hole 72b. The rear portion 78b is a portion extending in the left-right direction along the rear edge of the inside air introduction hole 72c. The left side portion 78c is a portion extending along the left side edge portion of the outside air introduction hole 72b and the inside air introduction hole 72c. The right side is a portion extending along the right edge of the outside air introduction hole 72b and the inside air introduction hole 72c.

  The left side portion 78c and the right side portion of the frame body 78 are bent so that the center portion in the front-rear direction is located most upstream in the air flow direction.

  A partition 78m is provided at the center of the frame 78 in the front-rear direction so as to correspond to the boundary between the outside air introduction port 72b and the inside air introduction port 72c. The partition part 78m extends in the left-right direction so as to divide the inside of the frame body 78 into two parts in the front-rear direction, and is integrally formed with the left side part 78c and the right side part. An outside air side strip member 76 is disposed in front of the partition portion 78m, and an inside air side strip member 77 is disposed on the rear side.

  The outside air side strip member 76 and the inside air side strip member 77 are connected by a connecting member such as the air mix damper 20. Further, similarly to the air mix damper 20, the outside air side strip member 76 and the inside air side strip member 77 are prevented from falling off the frame body 78.

  The bent portion of the frame body 78 is located in the vicinity of the boundary between the cold outside air introduction port 72b and the inside air introduction port 72c.

  As shown in FIGS. 3 and 4 (a), when the outside air side belt-like plate member 76 of the inside / outside air switching damper 75 is rotated so as to face the outside air introduction direction, the inside air side beltlike plate material 77 is interlocked with the inside air introduction port 72c. Rotate until fully closed. Thereby, only the outside air is introduced into the blower casing 72.

  Further, as shown in FIG. 4B, when the inside air side belt-like plate member 77 of the inside / outside air switching damper 75 rotates so as to face the introduction direction of the inside air, the outside air side beltlike plate material 77 interlocks with the outside air introduction port 72b. Rotate until fully closed. Thereby, only the inside air is introduced into the blower casing 72.

  Note that both the outside air and the inside air can be introduced into the blower casing 72 by rotating the outside air side belt member 76 and the inside air side belt member 77 until they are in a half-open state.

  As described above, according to this embodiment, since the frame body 32 of the air mix damper 20 is curved, it does not face the air flow in the air passage R. Thereby, compared with the case where it has faced, air becomes easy to flow to the downstream side along the frame 32, and a smooth flow is formed. Similarly, since the frame 63 of the differential / vent switching door 60 is also curved, a smooth flow is formed. Further, since the frame body 78 of the inside / outside air switching damper 75 of the blower unit 70 is similarly curved, a smooth flow is formed.

  Further, as shown in FIGS. 10 and 11, the first air passage T <b> 1 and the second air passage T <b> 2 and the downstream ends of the first air passage T <b> 1 and the second air passage T <b> 2 communicate with each other in the air conditioning casing 15. When the air passage T3 is formed, the air conditioner damper 80 according to the present invention may be disposed between the first air passage T1, the second air passage T2, and the third air passage T3. . In the air conditioning casing 15, air flows from the left to the right in FIGS.

  The air conditioner damper 80 includes a first passage-side belt member 81 and a second passage-side belt member 82 that are configured in the same manner as the cold air-side belt member 31, and the first passage-side belt member 81 and the second passage-side belt member. And a single frame 83 that rotatably supports the frame 82.

  The first passage side belt-like plate member 81 is for opening and closing the first air passage T1, and the second passage side belt-like plate member 82 is for opening and closing the second air passage T2. The frame 83 is formed by integrally molding an upper part 83a and a lower part 83b, a left side part 83c and a right side part (not shown). The upper part 83a is a part extending in the width direction of the first air passage T1 along the upper surface of the first air passage T1. The lower portion 83b is a portion extending in the width direction of the second air passage T2 along the lower surface of the second air passage T2. The left side portion 83c is a portion extending along the left side edge of the first air passage T1 and the second air passage T2. The right side is a portion extending along the right edge of the first air passage T1 and the second air passage T2.

  In the form shown in FIG. 10, the left side portion 83c and the right side portion of the frame 83 are curved so that the central portion in the vertical direction is located most upstream in the air flow direction. In the form shown in FIG. 11, the left side portion 83 c and the right side portion of the frame 83 are bent so that the central portion in the vertical direction is located most upstream in the air flow direction.

  A partition portion 83m is provided at the center of the frame 83 in the vertical direction so as to correspond to a boundary portion between the first air passage T1 and the second air passage T2. The partition portion 83m extends in the left-right direction so as to partition the inside of the frame 83 into two in the front-rear direction, and is integrally formed with the left-side portion 83c and the right-side portion. A first passage-side belt member 81 is disposed above the partition 83m, while a second passage-side belt member 82 is disposed below.

  The first passage-side belt member 81 and the second passage-side belt member 82 are connected in the same manner as in the case of the air mix damper 20. Further, similarly to the air mix damper 20, the first passage side belt-like plate member 81 and the second passage side belt-like plate member 82 are prevented from dropping from the frame 83.

  In the form shown in FIG. 10, the left side portion 83c and the right side portion of the frame 83 are curved so that the central portion in the vertical direction is located on the most upstream side in the air flow direction. You may curve so that it may be located in the direction downstream. Similarly, in the form shown in FIG. 11, the left side portion 83c and the right side portion of the frame 83 may be bent so that the center portion in the vertical direction is located most downstream in the air flow direction.

  The above-described embodiment is merely an example in all respects and should not be interpreted in a limited manner. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

  As described above, the present invention can be applied to a vehicle air conditioner mounted on, for example, an automobile.

1 Vehicle air conditioner 20 Air mix damper (air conditioner damper)
31 Cold air side belt-like plate material 32 Frame body 37 Support part 40 Left rotation shaft 41 Right rotation shaft 42 Closure plate portion (first closure plate portion)
51 Warm air side belt-like plate material 52 Blocking plate part (second blocking plate part)
60 differential / vent damper (air conditioner damper)
75 Inside / outside air switching damper (air conditioner damper)
R1 Cold air passage (first air passage)
R2 Hot air passage (second air passage)

Claims (6)

A plurality of strip-shaped plate members extending in a direction intersecting with the air flow direction of the air passage of the air conditioner are provided in parallel,
The strip-shaped plate member includes a rotating shaft and a closing plate portion that extends in a radial direction of the rotating shaft and closes the air passage, and the closing plate portion faces the air flow direction. In the damper for an air conditioner configured to be in the closed state by rotating until the closed plate portion intersects the air flow, while being in the open state by rotating,
A frame that is disposed in the air passage and is rotatably supported by the belt-like plate member;
The damper for an air conditioner, wherein the frame is bent toward one side in the air flow direction. The damper for an air conditioner according to claim 1,
The frame is disposed from the first air passage to the second air passage of the air conditioner, and is formed to be curved with a predetermined curvature in the air flow direction.
The frame body supports a first closing plate portion for closing the first air passage and a second closing plate portion for closing the second air passage. Device damper. The damper for an air conditioner according to claim 1,
The said frame is bent and formed so that it may protrude toward an air flow direction, The damper for air conditioners characterized by the above-mentioned. The damper for an air conditioner according to claim 3,
The frame is arranged from the first air passage to the second air passage of the air conditioner,
The frame body supports a first closing plate portion for closing the first air passage and a second closing plate portion for closing the second air passage,
The bent part of the frame is located near a boundary between the first air passage and the second air passage. The damper for an air conditioner according to claim 1,
The said frame is bent and formed so that it may protrude toward the air flow direction upstream, The damper for air conditioners characterized by the above-mentioned. In the damper for air-conditioning equipment according to any one of claims 1 to 5,
The damper for an air conditioner, wherein the plurality of strip-shaped plate members are made of the same member.

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