JP2016011083A - Door, and air conditioner using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve sealability of a blowout opening of a case 21.SOLUTION: A mode door 25 includes door bases 251, 252, door openings 253, 256, films 254, 255. The mode door 25 includes projection parts 30a, 30b which are formed so as to project in an outer circumferential direction from end parts Z1, Z2 of the door bases 251, 252 in a plate surface direction. The films 254, 255 fit to an outer circumference side of the door bases 251, 252, are wound around the projection parts 30a, 30b by elastic deformation, and are folded to an inner circumference side of the door bases 251, 252.

Description

  The present invention relates to a door and an air conditioner using the door.

  2. Description of the Related Art Conventionally, in a vehicle air conditioner, a first door base that extends in a circumferential direction around a rotation axis and a circumferential direction that is provided in a circumferential direction with respect to the first door base and that extends around a rotation axis Some include a rotary door having a second door base and a door opening provided between the first and second door bases (see, for example, Patent Document 1).

  The case is provided with a face blowing opening, a defroster blowing opening, and a foot blowing opening. The face blowout opening, the defroster blowout opening, and the foot blowout opening are disposed radially outside the rotary door with respect to the rotation axis. First and second films are disposed on the radially outer side with respect to the first and second door bases.

  With the door opening communicating with any one of the face blowing opening, the defroster blowing opening, and the foot blowing opening, the vehicle interior passes through the door opening and the one blowing opening from within the case. Blow out the air. When one of the first and second door bases closes any one of the face outlet opening, the defroster outlet opening, and the foot outlet opening, the one door The film disposed on the base will seal any one of the outlet openings.

JP 2009-214869 A

  In the above vehicle air conditioner, when the end of one side in the circumferential direction of the film hits the inner wall of the case as the rotary door rotates, the force applied from the film to the case varies. For this reason, sliding noise may be generated by sliding between the end portion on one side in the circumferential direction of the film and the inner wall of the case, or the sliding noise may vary.

  Therefore, the present inventor winds the film 1 around the circumferential end of the door base 2 from the outer side in the radial direction of the door base 2 as shown in FIG. It was considered that the end portion 1c on one side in the circumferential direction of the film 1 was arranged on the radially inner side of the door substrate 2 by bending the substrate 2 in the radial direction.

  Here, in the radially outer side 1a of the film 1 (see FIG. 15), the position at which the folding starts from the radially outer side of the door base 2 to the radially inner side is defined as a bending start point Y, and an arbitrary reference of the door base 2 Let the point be the reference point K. The length measured between the reference point K and the bending start point Y along the radially outer side (that is, the blowout opening side) 1a of the film 1 is La, and the reference point A and the door base 2 circle The length measured between the ends Z in the circumferential direction along the radial inner side (that is, the door base 2 side) 1b of the film 1 is Lb.

  Since the door base 2 is formed in an arc shape as described above, the length La is longer than the length Lb. For this reason, the elastic force which makes the difference of length La and Lb small arises in the film 1. FIG. Thereby, with the passage of time, the film 1 is deformed so that the bending start point Y is displaced radially inward by the elastic force of the film 1. For this reason, the displacement of the bending start point Y is not uniquely determined. Therefore, a gap may be generated between the film 1 and the inner wall of the case. Thereby, in the state which closed the opening opening part of any one among a face blowing opening part, a defroster blowing opening part, and a foot blowing opening part with the door base | substrate 2, the said clearance gap originated, and the film 1 is either said There is a possibility that a sealing failure may occur in which one blowout opening cannot be sealed. That is, there is a possibility that sealing of the blowout opening (opening) is impaired due to the displacement of the bending start point in the film 1.

  In view of the above points, the present invention provides a door that prevents the opening from being damaged due to the displacement of the bending start point of the film, and an air conditioner using the door. With the goal.

In order to achieve the above object, according to the first aspect of the present invention, it is arranged in the case (21) having the openings (21b, 21c, 21d), is formed in a plate shape, and opens and closes the openings by displacement. Door base (251, 252),
A film (254, 255) that is arranged in the case, arranged along the opening side of the door base, and seals the opening in a state where the door base closes the opening;
Protruding portions (30a to 30d) formed so as to protrude from the end portions (Z1, Z2) in the plate surface direction of the door base to the opening side,
The film is characterized in that the film is wound around the protrusion from the opening side of the door base and is bent to the opposite side of the opening of the door base.

  Here, the plate surface direction of the door base is a surface direction in which the door base expands. The position where the folding starts from the opening side of the door base to the opposite side of the opening on the opening side of the film is defined as a bending start point. Furthermore, the length measured along the film blowing opening side between the arbitrary reference position (K) and the bending start point (Y1, Y2) of the door base is defined as the outer path length. The distance from any reference position (K) of the door base to the tip side (Z3, Z4) of the projection through the edge (Z1, Z2) in the plate surface direction of the door base to the door base side of the film. The length measured along the line is the inner path length.

  According to the first aspect of the present invention, the protrusion is formed so as to protrude from the end (Z1, Z2) in the plate surface direction of the door base toward the opening. And the film is wound around the protrusion from the opening side of the door base and is bent to the opposite side of the opening of the door base. For this reason, the said outer side path length and the said inner side path length can be closely approached. Therefore, it is possible to suppress the bending start point from being displaced by the elastic force of the film. For this reason, it can suppress that a clearance gap arises between a case and a film. Thereby, it can suppress beforehand that the displacement of a bending start point arises among films, and impairing the sealing performance of an opening part.

Specifically, in the invention according to claim 4, the first protrusion as a protrusion formed so as to protrude from the end (Z1) on one side in the circumferential direction of the door base toward the opening. Part (30a, 30c),
The film is wound around the first protrusion and bent to the opposite side of the opening of the door base,
In the film, the position at which the door base starts to bend from the opening side to the opposite side of the opening is defined as a first bending start point (Y1).
The length measured along the opening side of the film between the arbitrary reference position (K) and the first bending start point of the door base is the first length (L1),
The length measured along the opening side of the door base between the reference position of the door base and the end (Z1) on one side in the circumferential direction of the door base is defined as the second length (LA). Measured along the side surface (50a) on the other circumferential side of the first protrusion between the end (Z1) on one side in the circumferential direction of the base and the tip side (Z3) of the first protrusion. The length to be taken is the third length (J1a),
The first protrusion is formed so that the length (LA + J1a) obtained by adding the second length (LA) and the third length (J1a) is the same as the first length (L1). Features.

  Thus, the first protrusion is formed so that the length (LA + J1a) obtained by adding the second length (LA) and the third length (J1a) is the same as the first length (L1). Yes. For this reason, “the distance from the arbitrary reference position (K) of the door base to the tip side (Z3) of the first protrusion via the one end (Z1) in the plate surface direction of the door base Among them, the “seventh length measured along the door base side” can be made to coincide with the first length. Therefore, it is possible to prevent the first bending start point from being displaced by the elastic force of the film. For this reason, the same effect as that of the invention described in claim 1 can be obtained.

  The first length is the outer path length, and the seventh length is the inner path length.

In the invention according to claim 7, the second protrusion (30b, 30d) as a protrusion formed so as to protrude from the end (Z2) on the other circumferential side of the door base toward the opening. )
The film is wound around the second protrusion and bent to the opposite side of the opening of the door base,
In the film, the position at which the door base starts to bend from the opening side to the opposite side of the opening is defined as a second bending start point (Y2).
The length measured along the opening side of the film between the arbitrary reference position (K) and the second bending start point of the door base is the fourth length (L3),
The length measured along the opening side of the door base between the reference position of the door base and the other end (Z2) in the circumferential direction of the door base is the fifth length (LB),
Between the end (Z2) on the other circumferential side of the door base and the tip side (Z4) of the second projection, along the side surface (50b) on the one circumferential side of the second projection. The measured length is the sixth length (J1b),
The second protrusion is formed so that the length (LB + J1b) obtained by adding the fifth length (LB) and the sixth length (J1b) is the same as the fourth length (L3). Features.

  Thus, the second protrusion is formed so that the length (LB + J1b) obtained by adding the fifth length (LB) and the sixth length (J1b) is the same as the fourth length (L3). Yes. For this reason, “the distance from the arbitrary reference position (K) of the door base to the front end side (Z4) of the second protrusion via the other end (Z2) in the plate surface direction of the door base Among them, the “eighth length measured along the door base side” and the fourth length can be matched. Therefore, it is possible to prevent the second bending start point from being displaced by the elastic force of the film. For this reason, the same effect as that of the invention described in claim 1 can be obtained.

  The fourth length is the outer path length, and the eighth length is the inner path length.

  According to an eleventh aspect of the present invention, in the air conditioner, the door (25) according to any one of the first to tenth aspects is provided, and the opening of the case has a blow-off opening (21b, 21c, 21d), wherein the room is air-conditioned by the air blown into the room from the blowout opening with the door base opening the blowout opening.

  According to this, it can suppress beforehand impairing the sealing property of the blowing opening part which comprises an air conditioner.

  In addition, the code | symbol in the bracket | parenthesis of each means described in this column and the claim shows the correspondence with the specific means as described in embodiment mentioned later.

It is a figure which shows schematic structure of the vehicle air conditioner in one Embodiment of this invention. It is a perspective view which shows the mode door in FIG. It is sectional drawing which shows the mode door in FIG. It is sectional drawing which shows the projection part of the mode door in FIG. It is the elements on larger scale in FIG. It is a schematic diagram which shows the dimensional relationship of the mode door in FIG. It is a schematic diagram which shows the dimensional relationship of the mode door in FIG. It is sectional drawing which shows the operating state of the mode door in FIG. It is sectional drawing which shows the operating state of the mode door in FIG. It is sectional drawing which shows the operating state of the mode door in FIG. It is sectional drawing which shows the operating state of the mode door in FIG. It is sectional drawing which shows the operating state of the mode door in FIG. It is sectional drawing which shows the protrusion part of the door base | substrate of the mode door in other embodiment of this invention. It is sectional drawing which shows the projection part of the door base | substrate of the mode door in a comparative example. It is sectional drawing which shows the film single-piece | unit in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of a vehicle air conditioner according to the present invention. FIG. 1 is a diagram showing a schematic configuration of a vehicle air conditioner. In FIG. 1, the up, down, left, and right arrows indicate the directions when the vehicle air conditioner is mounted on the vehicle.

  The vehicle air conditioner includes an air conditioning unit 20. The air conditioning unit 20 includes a case 21, a cooling heat exchanger 22, a heating heat exchanger 23, an air mix door 24, and a mode door 25. An air inlet 21a is provided on the front side of the case 21 in the vehicle traveling direction. Air blown from the blower is introduced into the air inlet 21a. The blower is disposed in the vehicle left-right direction (vehicle width direction) with respect to the air conditioning unit 20.

  The cooling heat exchanger 22 is disposed on the rear side in the vehicle traveling direction of the air inlet 21 a in the case 21. The cooling heat exchanger 22 constitutes a well-known refrigeration cycle apparatus that circulates refrigerant together with a compressor, a condenser, and an expansion valve, and cools air introduced into the air inlet 21a by evaporating the refrigerant. .

  The heating heat exchanger 23 is disposed on the rear side in the vehicle traveling direction with respect to the cooling heat exchanger 22 in the case 21, and cool air blown from the cooling heat exchanger 22 is cooled by engine cooling water (hot water). Heat. A hot air passage 26 a that guides the hot air blown from the heating heat exchanger 23 to the air mixing chamber 27 is formed in the case 21 on the rear side in the vehicle traveling direction with respect to the heating heat exchanger 23.

  In the case 21, a bypass passage 26 is provided on the improvement side of the heaven region with respect to the heating heat exchanger 23. The bypass passage 26 is a passage through which the cold air from the cooling heat exchanger 22 flows to the air mixing chamber 27 by bypassing the heating heat exchanger 23.

  The air mix door 24 is disposed above the heating heat exchanger 23. The air mix door 24 is formed so that the cross section thereof has a substantially arc shape. The air mix door 24 is supported by the case 21 so as to be rotatable.

  The air mix door 24 changes the ratio of the opening area of the bypass passage 26 and the opening area of the hot air passage 26a depending on its position. Thus, the air mix door 24 can adjust the temperature of the air blown into the vehicle interior by adjusting the ratio of the amount of air flowing through the bypass passage 26 and the amount of air flowing through the hot air passage 26a. FIG. 1 shows a max cool state in which the air mix door 24 fully closes the hot air passage 26 a and fully opens the bypass passage 26.

  The air mixing chamber 27 is disposed above the bypass passage 26 in the case 21 and above the heating heat exchanger 23, and cool air that has passed through the bypass passage 26 (see arrow E), and a heating heat exchanger. 23 is mixed with hot air (see arrow D) that has passed through the hot air passage 26a.

  The mode door 25 is disposed above the air mixing chamber 27 in the case 21. The mode door 25 is rotatably supported with respect to the case 21 by a rotating shaft 25a (see FIG. 2). The mode door 25 is driven by, for example, an electric motor (not shown).

  A case peripheral wall portion 210 is provided on the outer side of the case 21 in the radial direction with respect to the mode door 25. The case peripheral wall portion 210 is formed in a circular arc shape with the rotation shaft 25a as the center.

  The case peripheral wall 210 is provided with a defroster outlet 21b, a face outlet 21c, and a foot outlet 21d. Hereinafter, the defroster blowing opening 21b, the face blowing opening 21c, and the foot blowing opening 21d are collectively referred to as blowing openings 21b, 21c, and 21d. The blowout openings 21b, 21c, and 21d are arranged in the circumferential direction around the rotation shafts 25a and 25b. Hereinafter, the circumferential direction around the rotation shafts 25a and 25b is simply referred to as the circumferential direction.

  In the present embodiment, the face blowing opening 21c is arranged on one side in the circumferential direction with respect to the defroster blowing opening 21b. The foot blowing opening 21d is arranged on one side in the circumferential direction with respect to the face blowing opening 21c.

  The face blowout opening 21c is a blowout opening that blows conditioned air toward the upper half of the occupant in the vehicle interior, and the foot blowout opening 21d is a blowout opening that blows conditioned air toward the lower half of the occupant, The defroster blowing opening 21b is a blowing opening that blows conditioned air toward the inner surface of the window glass in the vehicle interior.

  The mode door 25 causes the mixed air from the air mixing chamber 27 to flow to any one of the outlet openings 21b, 21c, and 21d as it rotates. The mode door 25 of the present embodiment constitutes a rotary door formed in a substantially cylindrical shape.

  Next, a specific structure of the mode door 25 of the present embodiment will be described with reference to FIGS. 1, 2, and 3. FIG. 2 is a perspective view of the mode door 25. 1 and 3 are sectional views of the mode door 25 as viewed from one side in the axial direction.

  As shown in FIGS. 1 and 2, the mode door 25 includes door side walls 250 a and 250 b (only 250 a shown in FIG. 2), door bases 251 and 252, door openings 253 and 256, and films 254 and 255. Yes.

  The door side walls 250a and 250b are each formed in a disk shape, and are arranged with an interval in the vehicle width direction (in the direction perpendicular to the paper surface in FIG. 1). A rotary shaft 25a is disposed on each of the door side walls 250a and 250b. The rotary shaft 25a is formed so as to protrude outward (that is, in the vehicle width direction) from the door side walls 250a and 250b.

  As shown in FIGS. 2 and 3, the door bases 251 and 252 are each formed in a plate shape extending in the circumferential direction around the rotation shaft 25 a. That is, the door bases 251 and 252 are formed in a circular arc shape with the rotation shaft 25a as the center. The circumferential direction indicates the plate surface direction of the door bases 251 and 252. The plate surface direction is a surface direction in which the door bases 251 and 252 expand.

  The door bases 251 and 252 are arranged at intervals in the circumferential direction around the rotation shaft 25a. The door base 251 is disposed on one side in the circumferential direction with respect to the door base 252. The door openings 253 and 256 are formed between the door base 251 and the door base 252, respectively. The door opening 253 is formed on one side in the circumferential direction with respect to the door base 252. The door opening 256 is formed on one side in the circumferential direction with respect to the door base 251.

  The film 254 is formed so as to cover the door base 251 from the outside in the radial direction around the rotation shaft 25a. The film 254 is attached to the door base 251. The film 255 is formed so as to cover the door base 252 from the outside in the radial direction around the rotation shaft 25a. The film 255 is attached to the door base 252. The films 254 and 255 of the present embodiment are resin films having elasticity such as urethane.

  Hereinafter, the details of the structure of the mode door 25 will be described with reference to FIGS.

  As shown in FIG. 3, the mode door 25 includes protrusions 30a, 30b, 30c, and 30d. The protrusion 30a is formed so as to protrude from the end Z1 on one side in the circumferential direction of the outer periphery of the door base 251 to the outer periphery (that is, on the outlet openings 21b, 21c, 21d side) in the axial direction. ing. The axial direction is the axial direction of the rotating shaft 25a.

  The protrusion 30b is formed so as to protrude from the outer peripheral side of the door base 251 to the outer peripheral side from the other end Z2 in the circumferential direction in the axial direction. Here, the outer peripheral side is the outer side in the radial direction centering on the rotary shafts 25a and 25b. The inner peripheral side is a radially inner side centering on the rotary shafts 25a and 25b.

FIG. 4A shows a partially enlarged view of the protrusion 30a. The other circumferential side 31a of the protrusion 30a is formed in a circular arc shape that is convex toward one circumferential side. The other circumferential side 31a of the protrusion 30a means a portion between the end Z1 on one side in the circumferential direction on the outer peripheral side of the door base 251 and the tip side Z3 of the protrusion 30a.
One side 31b in the circumferential direction of the protrusion 30a is formed in a circular arc shape that protrudes toward one side in the circumferential direction.

  FIG. 4B shows a partially enlarged view of the protrusion 30b. One side 31c in the circumferential direction of the protrusion 30b is formed in a circular arc shape that is convex toward the other side in the circumferential direction. The circumferential direction one side 31c of the protruding portion 30b means a portion between the outer circumferential side of the door base 251 and the end Z2 on the other circumferential side and the distal end side Z4 of the protruding portion 30b. The other circumferential side 31d of the protrusion 30b is formed in a circular arc shape that is convex toward the other circumferential side.

  FIG. 5 shows the door base 251 and the film 254. FIG. 6 shows the dimensional relationship on one side in the circumferential direction of the door base 251 and the film 254. In FIG. 6, hatching is omitted to clarify the illustration of the reference numerals and the like.

  As shown in FIG. 5, the circumferential intermediate portion of the film 254 is disposed along the outer peripheral side with respect to the door base 251. One side in the circumferential direction of the film 254 is wound around the protrusion 30 a by elastic deformation and is bent from the outer peripheral side of the door base 251 to the inner peripheral side of the door base 251. That is, the end of one side in the circumferential direction of the film 254 is disposed on the inner peripheral side of the door base 251.

  The other circumferential side of the film 254 is wound around the protrusion 30b by elastic deformation and is bent from the outer peripheral side of the door base 251 to the inner peripheral side of the door base 251. That is, the end on the other circumferential side of the film 254 is disposed on the inner peripheral side of the door base 251.

  Here, on one side in the circumferential direction on the outer peripheral side of the film 254, the position where the folding starts from the outer peripheral side of the door base 251 to the inner peripheral side of the door base 251 is referred to as a bending start point Y1 (see FIG. 5). To do.

  In the present embodiment, on the outer peripheral side of the door base 251, an intermediate position between the one end Z1 in the circumferential direction and the other end Z2 in the circumferential direction is defined as an arbitrary reference position K of the door base 251 (see FIG. 5). And

  A length measured along the outer peripheral side of the door base 251 between an arbitrary reference position K of the door base 251 and an end Z1 on one side in the circumferential direction of the door base 251 is a length LA (second length: (See FIG. 6).

  A length measured along the outer peripheral side of the film 254 between the reference position K of the door base 251 and the position X1 on the outer peripheral side of the film 254 is a length L2 (see FIG. 6), and the length L2 is a length LA. Position X1 is set to be the same. And let the length measured along the outer peripheral side of the film 254 between the position X1 and the bending start point Y1 be length J2a.

  The length measured along the side surface 50a on the other circumferential side of the protrusion 30a between the end Z1 on one side in the circumferential direction of the door base 251 and the tip side Z3 of the protrusion 30a is a length J1a ( 3rd length). And the protrusion part 30a is formed so that length J1a and length J2a may become the same.

  That is, when the length measured along the outer peripheral side of the film 254 between the arbitrary reference position K and the bending start point Y1 in the door base 251 is the length L1 (outer path length: first length). The protrusion 30a is formed such that the length (LA + J1a) obtained by adding the length LA and the length J1a is the same as the length L1.

  As described above, the length measured from the arbitrary reference position K of the film 254 to the tip end side Z3 of the protrusion 30a through the one side end Z1 along the inner peripheral surface side of the film 254 is increased. If the length is LX (inner path length), the length LX and the length L1 can be matched.

  In the present embodiment, if one end in the circumferential direction on the inner peripheral side of the film 254 is an end W1, the length between the bending start point Y1 and the end W1 of the film 254 in the film 254 is set as the length. The shape is shortened and the length J1a is increased.

  Next, the other circumferential side of the film 254 will be described with reference to FIG. FIG. 7 shows a dimensional relationship between the door base 251 and the film 254 on the other side in the circumferential direction. In FIG. 7, hatching is omitted for clarity of illustration of symbols and the like.

  On the other circumferential side on the outer peripheral side of the film 254, the position where the folding starts from the outer peripheral side of the door base 251 to the inner peripheral side of the door base 251 is the bending start point Y2 (see FIGS. 5 and 7). To do.

  A length measured along the outer peripheral side of the door base 251 between an arbitrary reference position K of the door base 251 and the other end Z2 in the circumferential direction of the door base 251 is a length LB (fifth length). To do.

  The length measured along the outer peripheral side of the film 254 between the reference position K of the door base 251 and the position X2 on the outer peripheral side of the film 254 is a length L4, and the length L4 is the same as the length LB. A position X2 is set. And let the length measured along the outer peripheral side of the film 254 between the position X2 and the bending start point Y2 be length J2b.

  The length measured along the side surface 50b on one circumferential side of the protrusion 30b between the end Z2 on the other circumferential side of the door base 251 and the tip side Z4 of the protrusion 30b is a length J1b ( 6th length). And the protrusion part 30b is formed so that length J1b and length J2b may become the same.

  That is, when the length measured along the outer peripheral side of the film 254 between the arbitrary reference position K and the bending start point Y2 in the door base 251 is the length L3 (outer path length, fourth length). The protrusion 30b is formed such that the length (LB + J1b) obtained by adding the length LB and the length J1b is the same as the length L3.

  As described above, the length measured from the arbitrary reference position K of the film 254 through the other side end Z2 to the tip side Z4 of the protrusion 30b along the inner peripheral surface side of the film 254 is increased. If the length is LY (inner path length), the length LY and the length L3 can be matched.

  Thus, the shape and dimension of the protrusions 30a and 30b are determined by the dimension of the door base 252 and the dimension of the film 255.

  The protrusion part 30c of this embodiment is formed so that it may protrude from the circumferential direction one side to the outer peripheral side (namely, the blowing opening part 21b, 21c, 21d side) among the door bases 252. The protrusion 30d is formed so as to protrude from the other circumferential side of the door base 252 to the outer peripheral side (that is, the outlet openings 21b, 21c, and 21d).

  Here, the shapes and dimensions of the protrusions 30 c and 30 d are determined by the dimensions of the door base 251 and the dimensions of the film 254, similarly to the protrusions 30 a and 30 b. For this reason, as for the shape and dimension of the protrusions 30c and 30d, description of the dimension of the door base 251 and the dimension of the film 254 is omitted.

  Note that the protrusion 30 c corresponds to the protrusion 30 a, the protrusion 30 d corresponds to the protrusion 30 b, the door base 252 corresponds to the door base 251, and the film 255 corresponds to the film 254.

  In the present embodiment pair, the case 21 and the mode door 25 are made of a resin material having elasticity to some extent and excellent in strength.

Next, a specific operation of the mode door 25 of the present embodiment will be described. 8 to 12 show the operating state of the mode door 25, respectively. 8 to 12,
The illustration of the heat exchanger 22 for cooling, the heat exchanger 23 for heating, and the air mix door 24 is omitted.

  First, in the face mode shown in FIG. 8, the door base 252 closes the defroster outlet opening 21b and the door base 251 closes the foot outlet opening 21d.

  Thereby, the film 255 closely adheres between the periphery of the defroster blowout opening 21b and the door base 251 in the case peripheral wall 210. For this reason, the defroster blowing opening 21b is in a sealed state. The film 254 closely contacts the periphery of the foot outlet opening portion 21 d of the case peripheral wall portion 210 and the door base 251. For this reason, the foot outlet opening 21d is in a sealed state.

  At this time, the door opening 253 communicates with the face outlet 21c. For this reason, the face blowing opening part 21c opens. At this time, the cold air introduced from the bypass passage 26 through the door opening 256 and the hot air introduced from the hot air passage 26 a through the door opening 256 are mixed in the air mixing chamber 27. Then, the mixed air flows through the door opening 253 to the face blowing opening 21c.

  As described above, in the face mode, the defroster blowing opening 21b is sealed and the foot blowing opening 21d is sealed.

  Next, when the mode door 25 rotates (ie, displaces) clockwise, the bi-level mode shown in FIG. 9 is entered. In this bi-level mode, the door base 252 closes the defroster outlet opening 21b, and the door opening 253 communicates with the face outlet opening 21c and the foot outlet opening 21d.

  At this time, the face blowing opening 21c and the foot blowing opening 21d are opened. For this reason, the air blown from the air mixing chamber 27 with the film 255 sealing the defroster blowout opening 21b in the same manner as the face mode described above, the face blowout opening 21c and the foot blowout opening 21d from the door opening 253. And flow.

  Next, when the mode door 25 rotates clockwise, the foot mode shown in FIG. 10 is set. In this foot mode, the door base 252 closes the defroster blowing opening 21b and the face blowing opening 21c, and the door opening 253 communicates with the foot blowing opening 21d.

  In this case, the foot blowing opening 21d is opened, and the air blown from the air mixing chamber 27 flows from the door opening 253 to the foot blowing opening 21d.

  Further, the film 255 closely adheres between the periphery of the face outlet opening 21 c in the case peripheral wall portion 210 and the door base 252, and between the periphery of the defroster outlet opening 21 b in the case peripheral wall portion 210 and the door base 251. Adhere. For this reason, the defroster blowing opening 21b and the face blowing opening 21c are in a sealed state.

  Next, when the mode door 25 rotates clockwise, the foot-diff mode is set as shown in FIG. In the foot-def mode, air blown from the air mixing chamber 27 flows from the door opening 253 to the foot blowing opening 21d in a state where the film 255 seals the face blowing opening 21c. Furthermore, the air blown out from the air mixing chamber 27 flows from the door opening 256 to the defroster blowing opening 21b.

  Next, when the mode door 25 rotates clockwise, the defroster mode is set as shown in FIG. In this defroster mode, the door base 252 closes the face outlet opening 21c and the foot outlet opening 21d. Further, the door opening 256 communicates with the defroster outlet opening 21b.

  At this time, the defroster outlet opening 21b is opened, the film 255 closely contacts the periphery of the face outlet opening 21c in the case peripheral wall 210 and the door base 252, and the foot outlet opening in the case peripheral wall 210. The periphery of the portion 21d and the door base 252 are in close contact with each other. Thereby, the face blowing opening 21c and the foot blowing opening 21d are in a sealed state. In this case, the air blown out from the air mixing chamber 27 flows from the door opening 256 to the defroster blowing opening 21b.

  According to the present embodiment described above, the mode door 25 has the protrusions 30a and 30b (the protrusions 30a and 30b) formed so as to protrude in the outer peripheral direction from the end portions Z1 and Z2 in the plate surface direction of the door base 251 (252). 30c, 30d). The film 254 (255) extends along the outer peripheral side of the door bases 251 and 252 and is wound around the protrusions 30a and 30b (30c and 30d) by elastic deformation and bent to the inner peripheral side of the door base 251 (252). It is characterized by being.

  Here, when the length measured along the outer peripheral side of the film 254 (255) between the arbitrary reference position K and the bending start point Y1 in the door base 251 (252) is defined as the length L1, the length The protrusion 30a (30c) is formed so that the length (LA + J1a) obtained by adding LA and the length J1a is the same as the length L1. Therefore, a portion between the arbitrary reference position K of the film 254 (255) and the tip side Z3 of the protrusion 30a (30c) via the one side end Z1 is along the inner peripheral surface side of the film 254 (255). Thus, the measured length LX (inner path length) and the length L1 (outer path length) can be matched.

  Further, when the length measured along the outer peripheral side of the film 254 (255) between the arbitrary reference position K and the bending start point Y2 in the door base 251 (252) is defined as a length LB. The protrusion 30b (30d) is formed such that a length (LB + J1b) obtained by adding the length J1b is equal to the length L3. Therefore, the portion between the arbitrary reference position K of the film 254 (255) and the tip side Z4 of the protrusion 30b (30d) via the other end Z2 is along the inner peripheral surface of the film 254 (255). Thus, the measured length LY (inner path length) and the length L3 (outer path length) can be matched.

  As described above, it is possible to suppress the bending start points Y1 and Y2 from being displaced by the elastic force of the film 254 (255). For this reason, it can suppress that a clearance gap produces between case surrounding wall part 210 and film 254 (255). Thereby, it is possible to suppress the occurrence of a sealing failure that impairs the sealing performance of the blowing openings 21b, 21c, and 21d due to the displacement of the bending start points Y1 and Y2 in the film 254 (255).

  In the present embodiment, as described above, the bending start points Y1 and Y2 of the film 254 (255) can be suppressed from being displaced. Therefore, the bending start points Y1 and Y2 can be set at arbitrary positions depending on the shape of the protrusions 30a to 30d and the angle of the protrusions 30a to 30d. The angle of the protrusions 30a to 30d is an angle formed by the direction in which the protrusions 30a to 30d protrude with respect to the plate surface direction of the door base 251 (252).

(Other embodiments)
In the above embodiment, an example in which the air conditioner of the present invention is applied to a vehicle air conditioner has been described. Instead, the air conditioner of the present invention is replaced with an air conditioner other than a vehicle air conditioner (a residential air conditioner, a building). The present invention may be applied to an air conditioner for ships, an air conditioner for ships, an air conditioner for airplanes).

  In the above embodiment, an example in which the door of the present invention is applied to a vehicle air conditioner has been described. However, instead of this, the door of the present invention may be applied to devices other than the vehicle air conditioner.

  In the above embodiment, an example in which the door of the present invention is a rotary door has been described. However, instead of this, the door of the present invention may be a plate door other than the rotary door. Alternatively, the door of the present invention may be a sliding door that is slidably supported.

  In the above embodiment, an example in which the door base of the present invention is formed in an arc shape has been described, but a door base having a shape other than the arc shape may be used instead.

  Although the said embodiment demonstrated the example which made the intermediate position between the circumferential direction one side edge part Z1 and the circumferential direction other side edge part Z2 the reference position K of the door foundation 251 in the outer peripheral side of the door base | substrate 251. Instead of this, a position other than the intermediate position on the outer peripheral side of the door base 251 may be set as the reference position K.

  For example, when the shape of the protrusion 30a is set, the end Z2 on the other circumferential side on the outer peripheral side of the door base 251 may be set as the reference position K. And when setting the shape of the projection part 30b, it is good also considering the edge part Z1 of the circumferential direction one side in the outer peripheral side of the door base | substrate 251 as the reference | standard position K. FIG.

  In the above embodiment, the door of the present invention has been described as an example of a mode door that opens and closes the outlet openings 21b, 21c, and 21d, but instead of this, a door other than the mode door (for example, an air mix door, an inside / outside door) The air switching door) may be the door of the present invention.

  In the above embodiment, the example in which the protrusion 30a is formed so that the length (LA + J1a) obtained by adding the length LA and the length J1a is the same as the length L1 has been described. If it is set so that (LA + J1a) and the length L1 are close to each other, the protrusion 30a may be formed so that the length (LA + J1a) and the length L1 do not match.

  Similarly, if the length (LB + J1b) and the length L3 are set close to each other, the length (LB + J1b) obtained by adding the length LB and the length J1b and the length L3 are not matched. The part 30b may be formed.

  When carrying out the present invention, the shapes of the protrusions 30a to 30d may be as shown in the following (a), (b), and (c).

(A) As shown to Fig.13 (a), the protrusion part 30a is the circumference of the door base | substrate 251 in a radial direction outer side (namely, blowing outlet part side) and the orthogonal direction with respect to the circumferential direction of the door base | substrate 251. It is formed so as to protrude from the end Z1 on one side in the direction. The protrusions 30b, 30c, and 30d are the same as the protrusion 30a.
(B) As shown in FIG.13 (b), the protrusion part 30a is formed in the cross-section circular arc shape from which the cross section of the other side 32a of the circumferential direction becomes convex on the other side of the circumferential direction. The circumferential direction is the plate surface direction of the door base 251. The protrusion 30c is the same as the protrusion 30a.
(C) As shown in FIG.13 (c), the protrusion part 30b is formed in the cross-section circular arc shape from which the cross section of the one side 32b of the circumferential direction becomes convex in the circumferential direction one side. The protrusion 30d is the same as the protrusion 30b.

  In the above embodiment, an example in which the mode door 25 according to the present invention is driven by the electric motor has been described, but instead, the mode door 25 according to the present invention is rotationally driven by the operation force of the user operating the operation switch. You may make it do.

  In addition, this invention is not limited to above-described embodiment, In the range described in the claim, it can change suitably.

21 Case 21b Defroster blowing opening (blowing opening, blowing opening)
21c Face blowing opening (blowing opening, blowing opening)
21d Foot outlet opening (outlet opening, outlet opening)
25 Mode door (rotary door)
26 Bypass passage (air flow path)
26a Hot air passage (air passage)
251, 252 Door base 254, 255 Film 30a, 30b, 30c, 30d Projection

Claims (11)

Door bases (251, 252) disposed in a case (21) having openings (21b, 21c, 21d), formed in a plate shape, and opening and closing the openings by displacement;
A film (254, 255) disposed in the case, disposed along the opening side of the door base, and sealing the opening in a state where the door base closes the opening; ,
Protruding portions (30a-30d) formed so as to protrude from the end portions (Z1, Z2) in the plate surface direction of the door base to the opening side,
The door is characterized in that the film is wound around the protrusion from the opening side of the door base and is bent to the opposite side of the opening of the door base. A rotating shaft (25a) that is rotatably supported;
First and second door bases (251, 252) having a circumferential direction around the rotation axis as the plate surface direction;
First and second films (254, 255) as the films disposed on each of the first and second door bases,
One of the first and second door bases is disposed in the circumferential direction with respect to the other door base,
A door opening (253, 256) formed between the first and second door bases;
The first and second door bases, the first and second films, and the door opening rotate with the rotation of the rotation shaft,
When one of the first and second door bases closes the opening, the film disposed on the one of the first and second films is the opening. It is designed to seal the part,
The door according to claim 1, wherein the opening is opened in a state where the door opening communicates with the opening. The case is provided with a plurality of the opening portions (21b, 21c, 21d) disposed radially outside the rotating shaft with respect to the first and second door bases,
One of the first and second door bases is closed with one of the plurality of openings, and the one of the first and second films is the one door. The door according to claim 2, wherein a film disposed on a base seals any one of the openings. A first protrusion (30a, 30c) as the protrusion formed so as to protrude from the end (Z1) on one side in the circumferential direction of the door base toward the opening,
The film is wound around the first protrusion and bent to the opposite side of the opening of the door base,
In the film, the first bending start point (Y1) is a position at which the door base starts to bend from the opening side to the opposite side of the opening,
The length measured along the opening side of the film between the arbitrary reference position (K) and the first bending start point of the door base is the first length (L1),
A length measured along the opening side of the door base between the reference position of the door base and an end (Z1) on one side in the circumferential direction of the door base is a second length. (LA)
Between the end portion (Z1) on the one circumferential side of the door base and the distal end side (Z3) of the first projection portion, the side surface (50a) on the other circumferential side of the first projection portion. ) Is the third length (J1a) measured along
The first protrusion is formed such that a length (LA + J1a) obtained by adding the second length (LA) and the third length (J1a) is the same as the first length (L1). The door according to claim 2, wherein the door is provided.   Of the first protrusions (30a, 30c), the other circumferential side (31a) is formed in a circular arc shape whose cross section is convex toward the one circumferential side. The door according to claim 4.   Of the first protrusions (30a, 30c), the other circumferential side (32a) is formed in a circular arc shape whose cross section is convex to the other side in the circumferential direction. The door according to claim 4 or 5. A second protrusion (30b, 30d) as the protrusion formed to protrude from the end (Z2) on the other circumferential side of the door base toward the opening,
The film is wound around the second protrusion and bent to the opposite side of the opening of the door base,
In the film, a position at which the door base starts to bend from the opening side to the opposite side of the opening is a second bending start point (Y2),
The length measured along the opening side of the film between the arbitrary reference position (K) and the second bending start point of the door base is the fourth length (L3),
A length measured along the opening side of the door base between the reference position of the door base and an end (Z2) on the other circumferential side of the door base is a fifth length. (LB)
A side surface (50b) on one side in the circumferential direction of the second protrusion between the end (Z2) on the other circumferential side of the door base and the tip side (Z4) of the second protrusion. ) As the sixth length (J1b)
The second protrusion is formed such that a length (LB + J1b) obtained by adding the fifth length (LB) and the sixth length (J1b) is the same as the fourth length (L3). The door according to any one of claims 2 to 6, wherein the door is provided.   Of the second protrusions (30b, 30d), one end side (31c) in the circumferential direction of the door base is formed in a cross-sectional arc shape in which the cross section is convex to the other side in the circumferential direction. 8. A door according to claim 7, characterized in that   Of the second protrusions (30b, 30d), one side (32b) in the circumferential direction of the door base is formed in a circular arc shape whose cross section is convex to one side in the circumferential direction. The door according to claim 7 or 8.   The protrusion is formed so as to protrude from the end (Z1, Z2) of the door base in the plate surface direction on the opening side and in a direction orthogonal to the plate surface direction of the door base. 10. A door according to any one of claims 1 to 9. A door (25) according to any one of claims 1 to 10,
The opening of the case is a blowout opening (21b, 21c, 21d) for blowing air into the room,
An air conditioner that air-conditions the room with air blown into the room from the blow-off opening in a state where the door base opens the blow-off opening.

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