WO2023171324A1 - Rotary door and air conditioning device - Google Patents

Abstract

This rotary door comprises a door substrate (31), a top plate (33), a seal member (34), and a plate member (32). The door substrate (31) is provided so as to be able to rotate around a prescribed axial center (Ax, CL) in a ventilation path (21, 61) within a case (20, 60). The top plate (33) is attached to the door substrate (31) from the radial-direction outer side of a virtual circle that centers around the axial center (Ax, CL) and is perpendicular to the axial center (Ax, CL) of the rotation of the door substrate (31). The seal member (34) covers the surface on the radial-direction outer side of the top plate (33) and is affixed to the top plate (33) in a state in which the ends of the seal member (34) in the circumferential direction of the virtual circle are folded back toward the radial-direction inner side of the top plate (33) at the circumferential-direction ends of the top plate (33). The plate member (32) is configured so as to be fixed to the door substrate (31) and to sandwich, between the plate member (32) and the top plate (33), all or part of portions (341) of the seal member (34) that are folded back toward the radial-direction inner side of the top plate (33).

Description

Rotary door and air conditioner Cross-reference to related applications

This application is based on Japanese Patent Application No. 2022-36298 filed on March 9, 2022, the contents of which are hereby incorporated by reference.

The present disclosure relates to a rotary door and an air conditioner equipped with the same.

Conventionally, a rotary door is known that is rotatably provided inside a case of an air conditioner around a predetermined axis and switches the flow of air by opening and closing an opening provided in the case.
The rotary door described in Patent Document 1 includes a first door substrate in the shape of a disk provided on one side in the direction of the axis of rotation, a second door substrate in the shape of a disk provided on the other side in the direction of the axis of rotation, and the first door. A top plate is provided that is attached to the outer periphery of the substrate and the outer periphery of the second door substrate. The top plate is formed into a plate shape that extends in the circumferential direction around the axis. A sheet-shaped sealing member is attached to the top plate from the outside in the radial direction. The seal member covers the radially outer surface of the top plate, and is folded back toward the radially inner side of the top plate at the end in the rotation direction of the top plate.

Note that in Patent Document 1, the "door substrate" is referred to as a "door side wall," the "top plate" is referred to as a "door base," and the "sealing member" is referred to as a "film." Furthermore, the term "axial direction" refers to the direction in which the axis of rotation extends.

Patent No. 6256226

However, the rotary door described in Patent Document 1 is affected by frictional force due to sliding between the inner wall surface of the case and the sealing member during rotation, or by the friction force caused by the folded part of the sealing member trying to return to its pre-folding shape. There is a risk that the sealing member may peel off from the top plate due to elastic force or the like. Therefore, this rotary door has low versatility.

An object of the present disclosure is to provide a rotary door that can prevent peeling of a seal member and improve versatility, and an air conditioner equipped with the rotary door.

According to one aspect of the present disclosure, a rotary door opens and closes an opening provided in a case that forms a ventilation path through which air flows, and includes a door substrate, a top plate, a seal member, and a plate member. The door substrate is rotatably provided around a predetermined axis in the ventilation passage within the case. The top plate is attached to the door substrate from the outside in the radial direction in a virtual circle that is perpendicular to the axis of rotation of the door substrate and centered on the axis. The seal member covers a radially outer surface of the top plate, and a circumferential end of the seal member in the virtual circle is folded back to the radially inner side of the top plate at the circumferential end of the top plate. It can be attached to the top plate in a flat state. The plate member is fixed to the door base plate, and is configured to sandwich all or part of the portion of the seal member that is folded back inward in the radial direction of the top plate between the plate member and the top plate.

According to this, the plate member presses the part of the seal member that is folded back inward in the radial direction of the top plate (hereinafter referred to as "folded part of the seal member") from the side opposite to the top plate. Therefore, the seal member is protected from the top plate by the frictional force caused by sliding between the inner wall surface of the case and the seal member when the rotary door rotates, or by the elastic force that causes the folded portion of the seal member to return to its pre-folded shape. It is possible to prevent it from peeling off. Therefore, in this rotary door, the sealing member does not peel off from the top plate, and the versatility can be improved.

Moreover, it is possible to suppress the rattling of the top plate in the circumferential direction with respect to the substrate due to the frictional force between the sealing member and the plate member and the frictional force between the inner wall surface of the case and the sealing member. This improves the positional accuracy of the rotary door when opening and closing the opening of the case, and prevents air leakage from the opening of the case.

According to another aspect, an air conditioner includes the rotary door described in the first aspect, a case that forms a ventilation passage through which air flows and rotatably houses the rotary door, and a case that rotatably accommodates the rotary door, and a case that rotatably accommodates the rotary door. and a temperature adjustment section that adjusts the temperature.

According to this, by including the rotary door described in the first aspect above, the air conditioner can prevent the rotary door from becoming difficult to rotate within the case and improve the positional accuracy of the rotary door. . As a result, the air conditioner can prevent poor temperature adjustment and worsening of the feeling of the air outlet temperature due to locking of the rotary door, and can also prevent abnormal noise from being generated from the rotary door.

Note that the reference numerals in parentheses attached to each component etc. indicate an example of the correspondence between that component etc. and specific components etc. described in the embodiments described later.

FIG. 1 is a sectional view of an air conditioner including a rotary door according to a first embodiment. FIG. 2 is an exploded perspective view of the rotary door according to the first embodiment. FIG. 2 is a cross-sectional view perpendicular to the axial center of the rotary door according to the first embodiment at the center in the axial direction. 4 is an enlarged view of part IV in FIG. 3. FIG. It is an explanatory view for explaining operation of a rotary door concerning a 1st embodiment. It is an explanatory view for explaining operation of a rotary door concerning a 1st embodiment. It is an explanatory view for explaining operation of a rotary door concerning a 1st embodiment. FIG. 3 is a perspective view of a rotary door according to a second embodiment. It is a perspective view of the rotary door concerning a 3rd embodiment. It is a perspective view of the rotary door concerning a 4th embodiment. FIG. 7 is a sectional view perpendicular to the axial center of the rotary door according to the fourth embodiment at the center in the axial direction. It is a perspective view of the rotary door concerning a 5th embodiment. It is a perspective view of the rotary door concerning a 6th embodiment. It is a perspective view of the rotary door concerning a 7th embodiment.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that in each of the following embodiments, parts that are the same or equivalent to each other will be denoted by the same reference numerals, and the description thereof will be omitted.

(First embodiment)
A first embodiment will be described with reference to the drawings. FIG. 1 shows an air conditioning unit 10 of a vehicle air conditioner to which the rotary door of the present disclosure is applied. Note that the rotary door of the present disclosure is applied to a rear seat air mix door 30 disposed within the rear module case 20 of the air conditioning unit 10. Note that the rotary door of the present disclosure is not limited thereto, and may be applied to the front seat air mix door 40, the front seat mode switching door 50, and the like. Note that in FIG. 1, arrows indicating top, bottom, front, and rear indicate the vehicle vertical direction and vehicle longitudinal direction when the vehicle air conditioner is mounted on the vehicle.

The air conditioning unit 10 included in the vehicle air conditioner is arranged, for example, inside an instrument panel in the vehicle interior. The air conditioning unit 10 includes an air conditioning case 60, a cooling heat exchanger 70, a heating heat exchanger 80, a front seat air mix door 40, a front seat mode switching door 50, a rear module case 20, and a rear seat air mix door. It is equipped with 30 etc.

The air conditioning case 60 constitutes the outer shell of the air conditioning unit 10, and forms inside thereof a ventilation passage 61 for blowing air into the vehicle interior. The air conditioning case 60 accommodates a cooling heat exchanger 70, a heating heat exchanger 80, a front seat air mix door 40, a front seat mode switching door 50, etc. in the middle of the ventilation path 61. The air conditioning case 60 is molded from a resin (for example, polypropylene) that has a certain degree of elasticity and excellent strength.

An air inlet 62 is provided in the front region of the ventilation path 61 inside the air conditioning case 60. A blower unit (not shown) is disposed on one side of the air inlet 62 in the vehicle width direction, and air sent from the blower unit is introduced into the air inlet 62.

The cooling heat exchanger 70 is arranged within the air conditioning case 60 on the vehicle rear side of the air inlet 62. The cooling heat exchanger 70 is an evaporator that constitutes a well-known refrigeration cycle device together with a compressor, a condenser, an expansion valve, etc. (not shown), and by evaporating the refrigerant circulating in the refrigeration cycle, the cooling heat exchanger 70 The air passing through 70 is cooled.

The heating heat exchanger 80 is a heater core placed on the vehicle rear side of the cooling heat exchanger 70 in the air conditioning case 60, and heats the air passing through the heating heat exchanger 80 by exchanging heat with engine cooling water. Heat. Note that, as the heating heat exchanger 80, a PCT heater, a condenser, or the like may be used in place of or together with the heater core. Note that the cooling heat exchanger 70 and the heating heat exchanger 80 of this embodiment correspond to an example of a "temperature adjustment section" that adjusts the temperature of the air flowing through the ventilation path 61 in the air conditioning case 60.

A cold air passage 63 is formed in the ventilation passage 61 between the cooling heat exchanger 70 and the heating heat exchanger 80 in the air conditioning case 60, through which the cold air that has passed through the cooling heat exchanger 70 flows. Further, in the air conditioning case 60, a warm air passage 64 through which warm air that has passed through the heating heat exchanger 80 flows is formed in the ventilation passage 61 on the vehicle rear side of the heating heat exchanger 80.

Inside the air conditioning case 60, above the cold air passage 63 and the warm air passage 64, a front seat air mix door 40 and a front seat mode switching door 50 are provided. Both the front seat air mix door 40 and the front seat mode switching door 50 are rotary doors, and each is provided so as to be individually rotatable about a predetermined axis Ax. The front seat air mix door 40 and the front seat mode switching door 50 are formed into plate shapes that extend in the circumferential direction around the axis Ax. Note that the front seat air mix door 40 is provided with concave and convex shapes extending in the direction of the axis Ax and arranged in the circumferential direction. A cylindrical door inner space 65 is formed inside the front seat air mix door 40 and the front seat mode switching door 50.

The front seat air mix door 40 rotates within a predetermined angle range around the axis Ax, thereby increasing the opening area between the cold air passage 63 and the door inner space 65 and the opening area between the warm air passage 64 and the door inner space 65. It is possible to change the ratio to the opening area. Thereby, it is possible to adjust the temperature of the air blown out from the air conditioning unit 10 to the front seat space in the vehicle interior. Note that FIG. 1 shows a maximum cooling state in which the front seat air mix door 40 fully opens the cold air passage 63 and fully closes the warm air passage 64. Although not shown, by rotating the front seat air mix door 40 by a predetermined angle, a max hot state in which the warm air passage 64 is fully opened and a cold air passage 63 is fully closed, and a state between max cool and max hot can be achieved. States can also be implemented.

In the air conditioning case 60, a defroster outlet 66, a face outlet 67, and a foot outlet 68 are arranged in a radially outer portion of the front seat mode switching door 50, and the shaft center Ax is disposed in this order from the front side of the vehicle. It is provided in the circumferential direction around the center. The defroster blow-off opening 66 is a blow-off opening that communicates with a blow-off port that blows out conditioned air toward the inner surface of a window glass inside the vehicle interior. The face air outlet 67 is an air outlet that communicates with an air outlet that blows out conditioned air toward the upper body of an occupant seated in the front seat. The foot outlet opening 68 is an outlet that blows out conditioned air toward the lower body of the occupant seated in the front seat.

The front seat mode switching door 50 includes a first mode switching door 51 and a second mode switching door 52. By rotating the front seat mode switching door 50 within a predetermined angle range about the axis Ax, the first mode switching door 51 and the second mode switching door 52 open the defroster air outlet 66, the face air outlet 67, The opening areas of the foot outlet openings 68 can be changed.

In FIG. 1, the first mode switching door 51 fully closes the defroster air outlet 66, the second mode switching door 52 fully closes the foot air outlet 68, and the face mode in which the face air outlet 67 is fully opened is shown. It shows. Although not shown in the drawings, defroster mode, bi-level mode, foot mode, etc. can also be implemented by rotating the front seat mode switching door 50 by a predetermined angle. The defroster mode is a mode in which the defroster outlet 66 is fully opened and the face outlet 67 and foot outlet 68 are fully closed. The bi-level mode is a mode in which the defroster air outlet 66 is fully closed and the face air outlet 67 and foot air outlet 68 are opened. The foot mode is a mode in which the defroster air outlet 66 and the face air outlet 67 are fully closed, and the foot air outlet 68 is fully opened.

The rear module case 20 and the rear seat air mix door 30 constitute a rear module for adjusting the temperature of the air blown out from the air conditioning unit 10 to the rear seat space of the vehicle. The rear module case 20 constitutes the outer shell of the rear module, and has a ventilation passage 21 for blowing air from inside the air conditioning case 60 to the rear seat space of the vehicle on the inside thereof. It houses an air mix door 30. Note that the rear module case 20 and the air conditioning case 60 of this embodiment rotate rotary doors (specifically, the rear seat air mix door 30, the front seat mode switching door 50, and the front seat air mix door 40). This corresponds to an example of a "case" that can be accommodated.

A portion 22 of the rear module case 20 that accommodates the rear seat air mix door 30 (hereinafter referred to as "door accommodating portion 22 of the rear module case 20") is formed into a substantially cylindrical shape. The door accommodating portion 22 of the rear module case 20 is provided with a warm air opening 23, a cold air opening 24, and a rear seat blowing opening 25 in the circumferential direction of its cylindrical shape. The warm air opening 23 communicates with a warm air passage 64 in the air conditioning case 60 via a rear warm air bypass passage 26 . The cold air opening 24 communicates with a cold air passage 63 in the air conditioning case 60 via a rear cold air bypass passage 27. The rear seat air outlet 25 communicates with an air outlet that blows out conditioned air into the rear seat space via a rear seat duct 28.

The rear seat air mix door 30 is a rotary door, and is provided rotatably about a predetermined axis CL inside the door accommodating portion 22 of the rear module case 20. As shown in FIG. 2, the rear seat air mix door 30 includes a door substrate 31, a plate member 32, a top plate 33, a seal member 34, and the like. In the following explanation, the radial direction in a virtual circle perpendicular to the axis CL of rotation of the rear seat air mix door 30 and centered on the axis CL is simply referred to as the "radial direction", and the circumferential direction in the virtual circle is referred to as the "radial direction". is sometimes simply referred to as the "circumferential direction."

In the first embodiment, the door substrate 31 has a first door substrate 311 provided on one side in the axis CL direction and a second door substrate 312 provided on the other side in the axis CL direction. A rotating shaft 313 that protrudes from the door substrate 31 in the direction of the axis CL is provided at a portion of the door substrate 31 that includes the axis CL. Torque is applied to this rotating shaft 313 from an electric motor (not shown), so that the door substrate 31 rotates about the axis CL. Note that the first door substrate 311 and the second door substrate 312 are connected by a shaft member 314. Note that this shaft member 314 can also be discarded.

The plate member 32 is formed into a plate shape extending in the circumferential direction around the axis CL, and one or more plate members are provided on the circumference. In this embodiment, two plate members 32 are provided. One portion of the plate member 32 in the axis CL direction is connected to the first door substrate 311 , and the other portion of the plate member 32 in the axis CL direction is connected to the second door substrate 312 . Specifically, the door substrate 31, the plate member 32, and the shaft member 314 are integrally formed by resin injection molding, and constitute the rotary door main body portion 300. By integrally forming the door substrate 31, the plate member 32, and the shaft member 314, the rigidity of the rotary door main body portion 300 can be increased, and furthermore, an increase in assembly man-hours and the number of parts can be prevented.

The top plate 33 is formed into a plate shape that extends in the circumferential direction around the axis CL, and is attached to the door base plate 31 from the outside in the radial direction at a position corresponding to the plate member 32. In this embodiment, two top plates 33 are attached to the door substrate 31 in correspondence with the two plate members 32. Three claw portions 331 extending inward in the radial direction are provided at one end and the other end of the top plate 33 in the axis CL direction, respectively. On the other hand, three locking grooves 315 are provided in the first door substrate 311 and the second door substrate 312 at positions corresponding to the claw portions 331, respectively. By locking claw portions 331 provided on the top plate 33 into locking grooves 315 provided on the door base plate 31, the top plate 33 and the door base plate 31 can be easily fixed. Moreover, by adopting such a fixing method, the weight of the rear seat air mix door 30 can be reduced, and manufacturing costs such as assembly man-hours can be reduced.

Note that, as shown in FIGS. 2 to 4, one circumferential end 332 of the top plate 33 is curved so as to extend in a direction between one circumferential direction and the radially outward direction. The other end 333 in the circumferential direction of the top plate 33 is curved so as to extend in a direction between the other circumferential direction and the radially outward direction. The top plate 33 has a central portion excluding both ends thereof in the circumferential direction formed in a plate shape extending in the circumferential direction around the axis CL. The central portion of the top plate 33 and the plate member 32 are formed in a concentric arc shape in a cross-sectional view perpendicular to the axis CL. In this specification, concentric means that it is substantially concentric, and in addition to the state in which the center of the arc of the top plate 33 and the center of the arc of the plate member 32 are completely aligned, manufacturing tolerances, etc. This also includes a state in which there is a slight deviation.

The sealing member 34 is a soft thin plate-like packing, for example, a plate-like urethane whose outside is covered with a nylon mesh. In this embodiment, two seal members 34 are attached to the top plates 33 in correspondence with the two top plates 33. The sealing member 34 covers the radially outer surface of the top plate 33, and the circumferential end of the sealing member 34 in the virtual circle is located at the circumferential end of the top plate 33 and the diameter of the top plate 33. It is pasted on the top plate 33 in a state of being folded back inward. The sealing member 34 and the top plate 33 are attached using, for example, double-sided tape or adhesive.

A top plate sub-assembly 330 is configured with the seal member 34 attached to the top plate 33. Then, the claw portion 331 of the top plate 33 constituting the top plate sub-assembly 330 is engaged with the locking groove 315 of the door base plate 31 constituting the rotary door main body 300 from the radially outer side of the rotary door main body 300. By stopping, an air mix door 30 for the rear seat is created.

3 and 4 are cross-sectional views of the top plate sub-assembly 330 (i.e., the top plate 33 and the sealing member 34) and the rotary door main body 300 (i.e., the door base plate 31 and the plate member 32) assembled together. be. Specifically, FIG. 3 is a cross-sectional view perpendicular to the axis CL at the center of the rear seat air mix door 30 in the axis CL direction, and FIG. 4 is an enlarged view of the IV portion of FIG. 3.

As shown in FIGS. 3 and 4, a portion 341 of the sealing member 34 that is folded back inward in the radial direction of the top plate 33 (hereinafter referred to as “folded portion 341 of the sealing member 34”) is located between the top plate 33 and the plate member. It is sandwiched between 32. That is, the plate member 32 is configured to sandwich all or part of the folded portion 341 of the seal member 34 between it and the top plate 33. This configuration prevents the seal member 34 from peeling off from the top plate 33 due to the frictional force generated by the sliding between the seal member 34 and the inner wall surface of the door accommodating portion 22 of the rear module case 20 when the rear seat air mix door 30 rotates. is prevented. Moreover, the seal member 34 is prevented from peeling off from the top plate 33 even with the elastic force of the seal member 34 itself, which causes the folded portion 341 of the seal member 34 to return to the shape before folding.

Here, the positional relationship between the top plate 33 and the plate member 32 is as follows. That is, when the distance between the top plate 33 and the plate member 32 is G, and the thickness of the seal member 34 is T, the relationship is 0<G≦T. Thereby, the folded portion 341 of the seal member 34 is reliably sandwiched between the top plate 33 and the plate member 32, thereby preventing the seal member 34 from peeling off from the top plate 33. Note that, preferably, the relationship T/2≦G≦T may be satisfied. By doing so, it is possible to suppress excessive stress from acting on the sheet member.

In the rear seat air mix door 30 of this embodiment, sets of a plate member 32, a top plate 33, and a seal member 34 are provided at two locations in the circumferential direction. As a result, by rotating around the axis CL, the rear seat air mix door 30 simultaneously opens and closes a plurality of openings provided in the door accommodating portion 22 of the rear module case 20. It is possible to change the Note that the plurality of openings provided in the door accommodating portion 22 of the rear module case 20 are specifically the warm air opening 23, the cold air opening 24, and the rear seat blowout opening 25. Thereby, the temperature of the air blown out from the rear seat blow-off opening 25 to the rear seat space via the rear seat duct 28 can be adjusted.

Next, the operation of the rear seat air mix door 30 will be explained.

FIG. 5 shows a state in which the temperature of the air blown into the rear seat space of the vehicle is set to the maximum cool. In this state, the rear seat air mix door 30 fully opens both the cold air opening 24 and the rear seat blowing opening 25, and fully closes the warm air opening 23. As a result, the cold air flowing through the cold air passage 63 in the air conditioning case 60 flows into the inner space 29 of the rear seat air mix door 30 via the rear cold air bypass passage 27 and from the rear seat air outlet opening 25 to the rear. The air is blown out into the rear seat space via the seat duct 28.

FIG. 6 shows a state in which the temperature of the air blown into the rear seat space of the vehicle is set to maximum hot. In this state, the rear seat air mix door 30 fully opens both the warm air opening 23 and the rear seat blowing opening 25, and fully closes the cold air opening 24. As a result, the warm air flowing through the warm air passage 64 in the air conditioning case 60 flows into the inner space 29 of the rear seat air mix door 30 via the rear warm air bypass passage 26, and the warm air flows into the inner space 29 of the rear seat air mix door 30. 25 and is blown out into the rear seat space via the rear seat duct 28.

Although not shown in the drawing, when the temperature of the air blown into the rear seat space of the vehicle is set to an intermediate temperature between Max Cool and Max Hot, the rear seat air mix door 30 has the opening area of the cold air opening 24 and the warm air opening. The ratio of the opening area of the section 23 to the opening area is adjusted, and the blow-off opening 25 for the rear seat is fully opened. As a result, the cold air and warm air flowing into the inner space 29 of the rear seat air mix door 30 from the rear cold air bypass passage 27 and the rear warm air bypass passage 26 are mixed, and the air is mixed with the warm air through the rear seat air outlet opening. 25 and is blown out into the rear seat space via the rear seat duct 28.

FIG. 7 shows a state in which the blowing of air into the rear seat space of the vehicle is stopped. In this state, the rear seat air mix door 30 fully closes the rear seat blow-off opening 25 and closes at least one of the warm air opening 23 and the cold air opening 24 (the warm air opening 23 in this embodiment). Fully close. This stops air from blowing out from the rear seat air outlet 25 to the rear seat space, and also blocks the flow of air through the rear module case 20 in the warm air passage 64 and cold air passage 63 in the air conditioning case 60. be done.

As explained with reference to FIGS. 5 to 7 above, the rear seat air mix door 30 rotates about the predetermined axis CL within the door accommodating portion 22 of the rear module case 20. At this time, the outer peripheral surface of the seal member 34 of the rear seat air mix door 30 and the inner wall surface of the rear module case 20 slide. In order to adjust the temperature of the air blown into the rear seat space of the vehicle, the rear seat air mix door 30 closes a predetermined opening and opens another opening, or adjusts the opening area of the opening. At this time, the outer peripheral surface of the seal member 34 of the rear seat air mix door 30 is pressed against the inner wall surface of the rear module case 20, thereby preventing air leakage.

As described above, the frictional force due to the sliding between the seal member 34 and the inner wall surface of the rear module case 20 when the rear seat air mix door 30 rotates acts on the seal member 34 of the rear seat air mix door 30. do. Furthermore, the seal member 34 of the rear seat air mix door 30 is subjected to its own elastic force, which causes the folded portion 341 of the seal member 34 to return to its pre-folded shape. Here, the rotary door described in Patent Document 1 mentioned above has a configuration that does not include the plate member 32 described in the present embodiment. Therefore, if the configuration of the rotary door of Patent Document 1 is applied to the rear seat air mix door 30 of this embodiment, there is a concern that the seal member 34 may peel off from the top plate 33. If the seal member 34 is peeled off from the top plate 33, there is a possibility that, for example, a part of the peeled seal member 34 may enter the sliding portion between the inner wall of the rear module case 20 and the rear seat air mix door 30. Furthermore, if the seal member 34 is peeled off from the top plate 33, there is a risk that the seal member 34 will turn over and the adhesive surface of the seal member 34 will stick to the inner wall of the rear module case 20, for example. In that case, problems arise such as the rear seat air mix door 30 becoming difficult to rotate within the rear module case 20 and the door not being at the desired position. As a result, there are concerns that the rear seat air mix door 30 may be locked, resulting in poor temperature adjustment, a worsening of the feeling of the air outlet temperature at the rear seat, and abnormal noises coming from the rear seat air mix door 30.

In response to such problems, the rear seat air mix door 30 (hereinafter referred to as "rotary door") of the present embodiment has the following effects.
(1) In this embodiment, the plate member 32 fixed to the door substrate 31 is configured to sandwich all or part of the folded portion 341 of the seal member 34 between it and the top plate 33.
According to this, the shape of the seal member 34 is maintained by the plate member 32 pressing the folded portion 341 of the seal member 34 from the side opposite to the top plate 33. Therefore, the seal member resists the frictional force when the inner wall surface of the rear module case 20 and the seal member 34 slide when the rotary door rotates, or the elastic force that causes the folded portion 341 of the seal member 34 to return to its original state. 34 can be prevented from peeling off from the top plate 33. Therefore, this rotary door can prevent the seal member 34 from peeling off and improve its versatility.

Further, the rattling of the top plate 33 in the circumferential direction with respect to the door base plate 31 can be suppressed by the frictional force between the sealing member 34 and the plate member 32 and the frictional force between the inner wall surface of the rear module case 20 and the sealing member 34. is possible. This improves the positional accuracy of the rotary door when opening and closing the openings 23 to 25 of the rear module case 20, and prevents air leakage from the openings 23 to 25 of the rear module case 20.

Furthermore, in the rotary door of this embodiment, peeling of the seal member 34 is reliably prevented. Therefore, the seal member 34 is prevented from entering the sliding portion between the inner wall of the rear module case 20 and the rotary door, and the adhesive surface of the seal member 34 is prevented from sticking to the inner wall of the rear module case 20. This prevents the rotary door from becoming difficult to rotate within the rear module case 20 and from not being at the desired door position. Therefore, the rotary door of this embodiment can prevent poor temperature adjustment due to the door lock, worsening of the feeling of the air outlet temperature in the rear seats, and generation of abnormal noise from the rotary door.

(2) In this embodiment, the door substrate 31 and the plate member 32 are integrally formed.
According to this, the number of parts and the number of assembly steps do not increase even with the addition of the plate member 32, so manufacturing costs can be reduced.

(3) In this embodiment, the door substrate 31 includes a first door substrate 311 and a second door substrate 312. One portion of the plate member 32 in the axis CL direction is connected to the first door substrate 311 , and the other portion of the plate member 32 in the axis CL direction is connected to the second door substrate 312 .
According to this, it is possible to increase the rigidity of the rotary door main body portion 300 constituted by the first door substrate 311, the second door substrate 312, and the plate member 32. Therefore, the positional accuracy of the rotary door when opening and closing the openings 23 to 25 of the rear module case 20 can be improved.

(4) In this embodiment, the door board 31 and the top board 33 are fixed by locking the claw portion 331 provided on the top board 33 and the locking groove 315 provided in the door board 31. The configuration is as follows.
According to this, it is possible to easily fix the door substrate 31 and the top plate 33 with a simple configuration. Therefore, the weight of the rotary door can be reduced, and manufacturing costs such as assembly man-hours can be reduced.
By the way, in the structure in which the door substrate 31 and the top plate 33 are fixed by the locking structure between the claw portion 331 and the locking groove 315, a slight gap (in other words, play) is required in the locking structure. There is a concern that the top plate 33 may wobble. To address such concerns, in the present embodiment, as described above, the door board is fixed by the frictional force between the sealing member 34 and the plate member 32 and the frictional force between the inner wall surface of the rear module case 20 and the sealing member 34. It is possible to suppress wobbling of the top plate 33 in the circumferential direction with respect to the top plate 31. This improves the positional accuracy of the rotary door when opening and closing the openings 23 to 25 of the case, and prevents air leakage from the openings 23 to 25 of the rear module case 20.

(5) In this embodiment, the distance G between the top plate 33 and the plate member 32 and the plate thickness T of the seal member 34 have the following relationship: 0<G≦T.
According to this, by reliably sandwiching the folded portion 341 of the seal member 34 between the top plate 33 and the plate member 32, it is possible to prevent the seal member 34 from peeling off from the top plate 33.

(6) In the present embodiment, the top plate 33 and the plate member 32 have concentric arc shapes that sandwich the seal member 34 in a cross-sectional view perpendicular to the axis CL.
According to this, by increasing the contact area between the seal member 34 and the plate member 32, the frictional force between the seal member 34 and the plate member 32 is increased, and separation of the seal member 34 from the top plate 33 is reliably prevented. be able to. Further, the seal member 34 and the plate member 32 can be easily assembled.
In this specification, concentric means that the center of the arc of the top plate 33 and the center of the arc of the plate member 32 completely coincide with each other as long as they are substantially concentric to the extent that the above effect is achieved. In addition to this, it also includes slight deviations due to manufacturing tolerances, etc.

(7) In this embodiment, for one rotary door, a plurality of top plates 33, a plurality of seal members 34 corresponding to each of the plurality of top plates 33, a plurality of top plates 33 and a plurality of seal members are provided. A plurality of plate members 32 corresponding to 34 are provided.
According to this, a plurality of openings 23 to 25 provided in the rear module case 20 can be opened and closed simultaneously by one rotary door.

(8) The vehicle air conditioner of this embodiment includes a rotary door having the above configuration, cases 20 and 60 that form ventilation passages 21 and 61 and rotatably accommodate the rotary door, and a A temperature adjustment section that adjusts the temperature of the air flowing through the ventilation passages 21 and 61 is provided. Note that the temperature adjustment section is, for example, a cooling heat exchanger 70 and a heating heat exchanger 80.
According to this, this vehicle air conditioner applies the configuration of the rotary door to, for example, the rear seat air mix door 30, the front seat air mix door 40, and the front seat mode switching door 50. It is possible to prevent the rotary door from becoming difficult to rotate within 20 and 60. Therefore, the vehicle air conditioner can improve the positional accuracy of the rotary door. As a result, the vehicle air conditioner can prevent poor temperature adjustment and worsening of the feeling of the air outlet temperature due to locking of the rotary door, and can also prevent abnormal noise from the rotary door.

(Second to Seventh Embodiments)
In the second to seventh embodiments, a part of the configuration of the rotary door is changed from the first embodiment, and the other parts are the same as the first embodiment, so there are parts that differ from the first embodiment. I will only explain about.

Note that in FIGS. 8 to 10 and 12 to 14 referred to in the description of the second to seventh embodiments, one or more top plate sub-assemblies 330 (i.e., the top plate 33 and the sealing member 34) constituting the rotary door are shown. Of these, the top plate sub-assembly 330 disposed on the upper side of the drawing is omitted.

(Second embodiment)
As shown in FIG. 8, the plate member 32 included in the rotary door of the second embodiment has a hole 321 that communicates in the thickness direction (that is, the radial direction). This hole 321 is provided in the center of the plate member 32 except for the outer edge. Note that the shape, position, size, number, etc. of the holes 321 can be set arbitrarily.

According to the configuration of the second embodiment described above, the material used for the plate member 32 can be reduced and the weight of the rotary door can be reduced. Moreover, material costs can be reduced.

(Third embodiment)
As shown in FIG. 9, in the rotary door of the third embodiment, a plurality of plate members 322 and 323 are provided for one top plate 33. Specifically, two plate members 322 and 323 are provided for one top plate 33. Among the two plate members 322 and 323, one plate member 322 is fixed to the first door substrate 311, and the other plate member 323 is fixed to the second door substrate 312. One plate member 322 and the other plate member 323 are provided at positions separated from each other in the direction of the axis CL.

Also with the configuration of the third embodiment described above, the material used for the plate members 322 and 323 can be reduced, and the weight of the rotary door can be reduced. Moreover, material costs can be reduced.

(Fourth embodiment)
As shown in FIGS. 10 and 11, in the rotary door of the fourth embodiment, a protrusion 324 is provided on the surface of the plate member 32 facing outward in the radial direction. The protrusions 324 extend in the axial direction and are arranged in the circumferential direction at positions corresponding to the folded parts 341 of the seal member 34 . Further, the protrusion 324 is formed in a triangular shape when viewed from the axis CL direction, and one of the vertices of the triangle is disposed on the outside in the radial direction. As shown in FIG. 11, when the top plate sub-assembly 330 (i.e., the top plate 33 and the sealing member 34) and the rotary door main body part 300 (i.e., the door base plate 31 and the plate member 32) are assembled, the protrusion The portion 324 is pushed into the folded portion 341 of the seal member 34.

According to the configuration of the fourth embodiment described above, peeling of the seal member 34 from the top plate 33 can be more reliably prevented with a simple configuration.

(Fifth embodiment)
As shown in FIG. 12, in the rotary door of the fifth embodiment, a rotary door main body 300 is configured by one door substrate 31 and a plate member 32. A shaft member 314 extending from the door board 31 in the direction of the shaft center CL is provided at a portion of the door board 31 that includes the shaft center CL, and a rotating shaft 313 is provided at an end of the shaft member 314 .

As in the fifth embodiment described above, the rotary door may be configured to include one door board 31.

(Sixth embodiment)
As shown in FIG. 13, in the rotary door of the sixth embodiment, the door substrate 31 has two straight lines 316, 317 and the ends of the two straight lines 316, 317 when viewed from the axis CL direction. The shape is formed by two connecting arcs 318 and 319. Note that a plate member 32 is provided at a position corresponding to the two arcs 318 and 319 of the door board 31.

As in the sixth embodiment described above, the door substrate 31 included in the rotary door is not limited to a disk shape, but can have any shape.

(Seventh embodiment)
As shown in FIG. 14, in the rotary door of the seventh embodiment, the door substrate 31 is substantially fan-shaped when viewed from the axis CL direction. Note that a plate member 32 is provided at a position corresponding to the circular arc 320 on the outer periphery of the substantially fan-shaped door base plate 31 .

As in the seventh embodiment described above, the door substrate 31 included in the rotary door is not limited to a disk shape, but can have any shape, such as a fan shape.

(Other embodiments)
(1) In each of the above embodiments, the rear seat air mix door 30 includes the door substrate 31, the plate member 32, the top plate 33, the seal member 34, etc., but the configuration is not limited thereto. A configuration similar to that may be applied to various rotary doors such as the front seat mode switching door 50 and the front seat air mix door 40.

(2) In each of the above embodiments, the rotary door is configured to include one or two door substrates 31, but the present invention is not limited thereto. The rotary door may be configured to include three or more door substrates 31, for example.
Furthermore, one or more plate members 32, top plate 33, and seal members 34 may be provided for one rotary door.

(3) In each of the above embodiments, regarding the method of fixing the top plate 33 and the door substrate 31, the claw portion 331 is provided on the top plate 33 and the locking groove 315 is provided on the door substrate 31, but the method is not limited thereto. The method of fixing the top plate 33 and the door substrate 31 may be such that the door substrate 31 is provided with a claw portion 331 and the door substrate 31 is provided with a locking groove 315, for example. Further, various methods may be used to fix the top plate 33 and the door substrate 31, such as fitting, press-fitting, adhesion, screwing, etc.

(4) In each of the above embodiments, the door substrate 31 and the plate member 32 are integrally formed by resin injection molding. , adhesive, fitting, press-fitting, screwing, or other methods may be used for fixing.

The present disclosure is not limited to the embodiments described above, and can be modified as appropriate. Furthermore, the embodiments described above are not unrelated to each other, and can be combined as appropriate, except in cases where combination is clearly impossible. Furthermore, in each of the above embodiments, it goes without saying that the elements constituting the embodiments are not necessarily essential, except in cases where it is specifically stated that they are essential or where they are clearly considered essential in principle. stomach. In addition, in each of the above embodiments, when numerical values such as the number, numerical value, amount, range, etc. of the constituent elements of the embodiment are mentioned, when it is clearly stated that it is essential, or when it is clearly limited to a specific number in principle. It is not limited to that specific number, except in cases where In addition, in each of the above embodiments, when referring to the shape, positional relationship, etc. of constituent elements, etc., the shape, It is not limited to positional relationships, etc.

Claims (11)

1. In a rotary door that opens and closes openings (23-25, 66-68) provided in a case (20, 60) forming a ventilation path (21, 61) through which air flows,
   a door substrate (31) rotatably provided around a predetermined axis (Ax, CL) in the ventilation passage in the case;
   a top plate (33) that is perpendicular to the axis of rotation of the door substrate and attached to the door substrate from the radial outside in a virtual circle centered on the axis;
   A seal member (34) that covers a radially outer surface of the top plate, wherein a circumferential end of the seal member in the virtual circle is a circumferential end of the top plate. the sealing member affixed to the top plate in a radially inwardly folded state;
   A plate member (32) fixed to the door base plate and sandwiching all or part of a portion (341) of the sealing member that is folded back inward in the radial direction of the top plate between the door base plate and the top plate. rotary door.
2. The rotary door according to claim 1, wherein the door substrate and the plate member are integrally formed.
3. The door substrate includes a first door substrate (311) provided on one side in the axial direction, and a second door substrate (312) provided on the other side in the axial direction,
   One portion of the plate member in the axial direction is connected to the first door substrate, and the other portion of the plate member in the axial direction is connected to the second door substrate. The rotary door according to 1 or 2.
4. The claw portion (331) provided on one of the door substrate or the top plate is engaged with the locking groove (315) provided on the other side of the door substrate or the top plate, so that the door is closed. The rotary door according to any one of claims 1 to 3, wherein the base plate and the top plate are fixed.
5. If the distance between the top plate and the plate member is G, and the thickness of the seal member is T,
   The rotary door according to any one of claims 1 to 4, having a relationship of 0<G≦T.
6. The rotary door according to any one of claims 1 to 5, wherein the top plate and the plate member have concentric arc shapes in which the sealing member is sandwiched in a cross-sectional view perpendicular to the axis.
7. a plurality of the top plates;
   a plurality of said seal members provided on each of said plurality of top plates;
   The rotary door according to any one of claims 1 to 6, comprising a plurality of said plate members provided corresponding to a plurality of said top plates and a plurality of said seal members.
8. The rotary door according to any one of claims 1 to 7, wherein the plate member has a hole (321) communicating in the thickness direction.
9. The rotary door according to any one of claims 1 to 8, wherein a plurality of said plate members (322, 323) are provided for one said top plate.
10. According to any one of claims 1 to 9, a protrusion (324) that is pushed into a folded portion of the sealing member is provided on a surface of the plate member facing outward in the radial direction. rotary door.
11. The rotary door (30, 40, 50) according to any one of claims 1 to 10,
    the case forming the ventilation passage through which air flows and rotatably housing the rotary door;
    An air conditioner including a temperature adjustment section (70, 80) that adjusts the temperature of air flowing through the ventilation path.

Images