JP2008025949A - Air volume adjusting device and air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air volume adjusting device capable of preventing fixation of an air trunk opening and closing member for opening and closing an air suction opening or an air blow out opening. <P>SOLUTION: This air volume adjusting device 1A comprises a first damper 20a for opening and closing the first suction opening 2a, a second damper 20b for opening and closing the second suction opening 2b, and a damper driving portion 3 disposed between the first suction opening 2a and the second suction opening 2b, and driving the first damper 20a and the second damper 20b. The first suction opening 2a is provided with an unfixing protrusion 27a on a position to be kept into contact with the closed first damper 20a, and the second suction opening 2b is provided with an unfixing protrusion 27b on a position to be kept into contact with the closed second damper 20b. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an air volume adjusting device installed at an air inlet or outlet and an air conditioner including the air volume adjusting device.

  2. Description of the Related Art Conventionally, an air conditioner for a bathroom has been proposed that has a ventilation function for sucking air from a bathroom or the like and discharging it to the outside, and a function for sucking air from a bathroom or the like and blowing hot air or the like to perform heating or the like.

  Such an air conditioner for a bathroom is installed on the ceiling of the bathroom, and an air inlet and outlet are arranged facing the bathroom. In order to prevent air in the bathroom from leaking during heating without ventilation, etc., and to adjust the ventilation air volume, a damper that can be opened and closed is provided at the air inlet to the ventilation fan. (For example, see Patent Document 1).

JP 2004-125373 A (FIG. 7)

  Since an air conditioner for a bathroom is installed in a bathroom, moisture may adhere to a suction port or the like. For this reason, there was a problem that the damper is fixed by a calcium component or the like in moisture, and the suction port cannot be opened and closed.

  The present invention has been made to solve such a problem, and includes an air volume adjusting device capable of preventing the air passage opening / closing member that opens and closes the air inlet or outlet and the air volume adjusting device. The purpose is to provide an air conditioner.

  In order to solve the above-described problem, an air volume adjusting device according to the present invention has an air passage opening and closing member that opens and closes an air passage opening through which air passes, a drive unit that drives the air passage opening and closing member, and an air passage opening that is closed. The air path opening / closing member and the air path opening are in contact with each other, and a convex portion formed on at least one of the air path opening / closing member and the air path opening is provided.

  In the air volume adjusting device of the present invention, when the air passage opening is closed by the air passage opening / closing member, the air passage opening / closing member and the air passage opening are brought into contact with each other via the convex portion. For this reason, in a state where the air passage opening and closing member is closed, the contact area between the air passage opening and closing member and the air passage opening is small, and sticking is prevented.

  An air conditioner of the present invention includes a blowing unit that sucks or blows air, and an air volume adjusting device that has an air passage opening through which air sucked by the blowing unit or air blown from the blowing unit passes. An air path opening and closing member that opens and closes the air path opening, a drive unit that drives the air path opening and closing member, and an air path opening and closing member that closes the air path opening and the position where the air path opening abuts. It is provided with the convex part formed in at least one of a member and an air-path opening part.

  In the air conditioner of the present invention, when the air passage opening is closed by the air passage opening and closing member through which the air sucked by the air blowing means or the air blown out from the air blowing means passes, the air passage opening and closing member and the air passage opening are interposed via the convex portion. Abut. For this reason, in a state where the air passage opening and closing member is closed, the contact area between the air passage opening and closing member and the air passage opening is small, and sticking is prevented.

  According to the air volume adjusting device of the present invention, in the state where the air passage opening is closed by the air passage opening and closing member, the contact area between the air passage opening and closing member and the air passage opening is small, and even when moisture or the like adheres, the air passage The fixing of the opening / closing member can be prevented.

  According to the air conditioner of the present invention, by providing such an air volume adjusting device, the air passage opening and closing member can be reliably opened and closed, and air can be sucked and blown out.

  Hereinafter, embodiments of an air volume adjusting device and an air conditioner according to the present invention will be described with reference to the drawings.

<Configuration example of the air volume adjusting device of the present embodiment>
1 is an external perspective view showing an example of an air volume adjusting device of the present embodiment, FIG. 2 is an exploded perspective view showing an example of an air volume adjusting device of the present embodiment, and FIG. 3 is an air volume of the present embodiment. FIG. 4 is a sectional view taken along line AA of the air volume adjusting device of the present embodiment, and FIG. 5 is a sectional view taken along line BB of the air volume adjusting device of the present embodiment.

  1A of air volume adjusting apparatuses of this Embodiment are the 1st damper 20a which opens and closes the 1st inlet 2a, the 2nd damper 20b which opens and closes the 2nd inlet 2b, the 1st damper 20a, A damper driving unit 3 for driving the second damper 20b is provided.

  The first suction port 2a is an example of a first air passage opening, and is configured by forming an opening of a predetermined shape in the first damper frame 21a. The second suction port 2b is an example of a second air passage opening, and is configured by forming an opening of a predetermined shape in the second damper frame 21b.

  The first damper frame 21a and the second damper frame 21b include a storage portion 22 of the damper driving unit 3 between the first suction port 2a and the second suction port 2b, and the first suction port 2a and the second damper frame 21b. The damper driving unit 3 is disposed between the two suction ports 2b.

  In this example, the first damper frame 21a and the second damper frame 21b are divided at the location where the storage portion 22 is formed. For example, the storage portion 22 is formed by integrating them with a screw 21d.

  The first damper 20a is an example of a first air passage opening / closing member, and is a flat plate member having a predetermined shape according to the shape of the first suction port 2a. In this example, the first damper 20a is a rotating shaft 23a in the longitudinal direction. And the first suction port 2a is opened and closed by rotating the rotary shaft 23a around the rotation fulcrum. Here, the rotating shaft 23a is arranged so as to be biased toward one end side in the short direction of the first damper 20a.

  In the first damper 20a, a shaft portion 24a is formed on one end side of the rotating shaft 23a, a shaft fitting portion 25a is formed on the other end portion side, and the shaft portion 24a is formed by the first damper. It is supported by a bearing portion 26a formed on the frame 21a.

  The second damper 20b is an example of a second air passage opening / closing member, and is a flat plate member having a predetermined shape in accordance with the shape of the second suction port 2b. In this example, the rotation shaft 23b is arranged in the longitudinal direction. The second suction port 2b is opened and closed by rotating the rotary shaft 23b around the rotation fulcrum. Here, the rotating shaft 23b is arranged so as to be biased toward one end side in the short direction of the second damper 20b.

  In the second damper 20b, a shaft portion 24b is formed on one end side of the rotating shaft 23b, a shaft fitting portion 25b is formed on the other end side, and the shaft portion 24b is formed by the second damper. It is pivotally supported by a bearing portion 26b formed on the frame 21b.

  The damper driving unit 3 is an example of a driving unit, and includes a motor 30 that is rotationally driven, and a driving force transmission mechanism 31 that transmits the driving force of the motor 30 to both the first damper 20a and the second damper 20b. It is incorporated in the storage portion 22 between the first suction port 2a and the second suction port 2b.

  The motor 30 is an example of a driving unit, and is a single-axis type motor in which a rotationally driven shaft 30a protrudes on one side, and in this example, includes a stepping motor.

  The driving force transmission mechanism 31 is an example of a driving force transmission unit. The first link mechanism 32a that transmits the driving force of the motor 30 to the first damper 20a and the driving of the motor 30 that is transmitted to the first link mechanism 32a. A second link mechanism 32b that transmits force to the second damper 20b is provided.

  The first link mechanism 32a is an example of a first transmission member, and is fitted to a shaft fitting portion 25a formed on the rotating shaft 23a of the first damper 20a, and a bearing formed on one side wall portion of the storage portion 22. The shaft part 33a supported by the part 22a is provided. The first link mechanism 32a includes a first link portion 34a that protrudes outward with respect to the motor 30, is connected to the second link mechanism 32b, and swings around the shaft portion 33a as a rotation fulcrum. Further, the first link mechanism 32a includes a shaft fitting portion 35a that is formed coaxially with the shaft portion 33a and into which the shaft 30a of the motor 30 is fitted.

  The second link mechanism 32b is an example of a second transmission member, and is fitted to a shaft fitting portion 25b formed on the rotation shaft 23b of the second damper 20b, and a bearing formed on the other side wall portion of the storage portion 22. The shaft part 33b pivotally supported by the part 22b is provided. The second link mechanism 32b includes a second link portion 34b that protrudes outward with respect to the motor 30, is connected to the first link mechanism 32a, and swings around the shaft portion 33b as a rotation fulcrum.

  In the first damper frame 21a, a bearing portion 26a that supports the rotating shaft 23a of the first damper 20a and a bearing portion 22a of the storage portion 22 that supports the first link mechanism 32a are formed on the same axis. . In the second damper frame 21b, a bearing portion 26b that supports the rotating shaft 23b of the second damper 20b and a bearing portion 22b of the storage portion 22 that supports the second link mechanism 32b are formed on the same axis. Is done. Further, the bearing portion 22a and the bearing portion 22b of the storage portion 22 are arranged coaxially.

  Thereby, the rotating shaft 23a of the first damper 20a and the rotating shaft 23b of the second damper 20b are coaxially arranged, and further, the rotating shaft 23a of the first damper 20a and the rotating shaft 23b of the second damper 20b. Then, the shaft 30a of the motor 30 is arranged on the same axis.

  FIG. 6 is a configuration diagram showing details of the driving force transmission mechanism. The first link portion 34a of the first link mechanism 32a includes an arm portion 34c that extends to the second link portion 34b of the second link mechanism 32b through the outside of the motor 30, and includes the first link portion. The connecting portion 34d of 34a and the second link portion 34b has a configuration in which a concave portion and a convex portion are fitted, and a swinging direction with the rotation shaft 23a of the first damper 20a and the rotation shaft 23b of the second damper 20b as rotation fulcrums. The driving force is transmitted to.

  Returning to FIG. 4, in the first link mechanism 32 a, the shaft portion 33 a is pivotally supported by the bearing portion 22 a of the storage portion 22 via the O-ring 36, and prevents moisture and the like from entering the storage portion 22 from the bearing portion 22 a. . Similarly, in the second link mechanism 32b, the shaft portion 33b is pivotally supported by the bearing portion 22b of the storage portion 22 via the O-ring 36, and prevents moisture and the like from entering the storage portion 22 from the bearing portion 22b.

  The first suction port 2a includes a sticking prevention convex portion 27a that comes into contact with the first damper 20a. FIG. 7 is a cross-sectional view showing details of the sticking prevention convex portion. The anti-sticking convex portion 27a is an example of a convex portion, and has, for example, a substantially triangular cross-sectional shape. Protrudes on the surface to be The sticking prevention convex portion 27a is formed along the opening shape of the first suction port 2a at a position where it comes into contact with the surface of the closed first damper 20a, and the first damper closed with the first suction port 2a. The contact area is reduced by contacting 20a with lines rather than surfaces.

  Similar to the first suction port 2a, the second suction port 2b includes a sticking prevention convex portion 27b that comes into contact with the second damper 20b. The sticking prevention convex part 27b is an example of a convex part, and has, for example, a substantially triangular cross-sectional shape as shown in FIG. 6, and the second suction port 2b is closed by rotating the rotary shaft 23b around a rotation fulcrum. It protrudes to the surface facing the second damper 20b. The sticking prevention convex portion 27b is formed along the opening shape of the second suction port 2b at a position where it comes into contact with the surface of the closed second damper 20b, and the second damper closed with the second suction port 2b. The contact area is reduced by contacting 20b with lines rather than surfaces.

  The air volume adjusting device 1A includes an open / close detection sensor 37 that detects whether or not the first damper 20a and the second damper 20b are normally opened. The open / close detection sensor 37 is constituted by a magnetic proximity switch in this example, and detects a magnet 37a attached to the first link mechanism 32a.

  In addition, the air volume adjusting device 1A includes a wiring introduction portion 22d at a joint portion 22c between the divided first damper frame 21a and the second damper frame 21b. The wiring introduction portion 22d is configured by opening a semicircular portion at the joint portion 22c of the first damper frame 21a and the second damper frame 21b, and attaching a ring-shaped rubber material or the like to the motor 30. Wiring to be connected and wiring to be connected to the open / close detection sensor 37 are introduced.

  Further, the air volume adjusting device 1A includes a wiring stopper 21c in the second damper frame 21b in this example. The wiring stopper 21c fixes the wiring introduced into the wiring introduction part 22d along the second damper frame 21b.

<Configuration example of air conditioner of this embodiment>
8 and 9 are perspective views illustrating an example of the air conditioner according to the present embodiment, FIG. 10 is a plan view illustrating an example of the air conditioner according to the present embodiment, and FIG. 11 illustrates the air conditioner according to the present embodiment. It is a sectional side view which shows an example.

  The air conditioner 4A according to the present embodiment includes the air volume adjusting device 1A described above, and a circulation fan unit 5 and a ventilation fan unit 6 which are examples of the air blowing means.

  In the air conditioner 4 </ b> A, the circulation fan unit 5 and the ventilation fan unit 6 are attached to the upper part of the chassis 40 in an overlapping manner. In the air conditioner 4 </ b> A, a rectangular parallelepiped main body case 41 that covers the circulation fan unit 5 and the ventilation fan unit 6 is attached to the chassis 40.

  The circulation fan unit 5 is an example of a circulation fan unit, and includes a circulation fan case 50 that forms an air passage, a fan 51 that is rotationally driven, and the like. The circulation fan case 50 has a circular shape that guides an air flow generated by the rotation of the fan 51 to a blowing portion formed in a tangential direction of the fan 51, and is attached to the chassis 40.

  In the circulation fan unit 5, a suction port 52 is formed in the chassis 40 on the lower surface along the axial direction of the fan 51. Further, the circulation fan unit 5 is connected to an outlet unit 53 of the circulation fan case 50 at the outlet.

  The air outlet unit 53 is attached to the chassis 40, and includes an electric louver 54 at the air outlet 53a and a heater (not shown) in the air passage. The electric louver 54 includes a wind direction adjusting plate 54a, a motor 54b that drives the wind direction adjusting plate 54a, and a driving force transmission mechanism (not shown) that transmits the driving force of the motor 54b to the wind direction adjusting plate 54a.

  As a result, when the fan 51 is rotationally driven, the circulation fan unit 5 sucks air from the suction port 52 and generates a flow of air blown from the blower outlet 53 a of the blower outlet unit 53.

  The ventilation fan unit 6 is an example of a ventilation fan unit, and includes a ventilation fan case 60 that forms an air passage, a fan 61 that is rotationally driven, and the like. The ventilation fan case 60 has a circular shape that guides the flow of air generated when the fan 61 is rotationally driven to a blowing portion 60 a formed in a tangential direction of the fan 61, and the blowing portion 60 a is connected to the blowing outlet unit 53. It is mounted on the chassis 40 on the circulation fan case 50 toward the opposite side.

  The ventilation fan unit 6 has a suction port 62 formed on the upper surface of the ventilation fan case 60 along the axial direction of the fan 61.

  Thereby, when the fan 61 is rotationally driven, the ventilation fan unit 6 sucks air from the suction port 62 and generates a flow of air discharged from the blow-out part 60a.

  In the air conditioner 4 </ b> A, the air volume adjusting device 1 </ b> A is attached to the lower part of the chassis 40. The air conditioner 4A includes a space 42a extending in the vertical direction between the outer peripheral portion of the circulation fan case 50 of the circulation fan unit 5 and the ventilation fan case 60 of the ventilation fan unit 6 and the inner surface of one corner of the main body case 41. In the air volume adjusting device 1A, the first suction port 2a is disposed in the lower part of the space 42a.

  In the air conditioner 4A, a space 42b extending in the vertical direction is formed between the outer peripheral portions of the circulation fan case 50 and the ventilation fan case 60 and the inner surface of the other corner of the main body case 41, and the air volume adjusting device 1A. The second suction port 2b is arranged at the lower part of the space 42b.

  On the other hand, the damper drive unit 3 is disposed below the circulation fan case 50 where no space is formed between the outer peripheral portions of the circulation fan case 50 and the ventilation fan case 60 and the inner surface of the main body case 41.

  Thus, the air conditioner 4A is formed between the outer periphery of the circulation fan case 50 and the ventilation fan case 60 and the inner surface of one corner of the main body case 41 from the first suction port 2a of the air flow adjusting device 1A. A first suction air passage 43a communicating with the suction port 62 of the ventilation fan unit 6 is formed.

  The air conditioner 4 </ b> A is formed between the outer periphery of the circulation fan case 50 and the ventilation fan case 60 and the inner surface of the other corner of the main body case 41 from the second suction port 2 b of the air volume adjusting device 1 </ b> A. A second suction air passage 43b that passes through the space 42b and communicates with the suction port 62 of the ventilation fan unit 6 is formed.

  A space 42a constituting a first suction air passage 43a, which is an example of a first air passage, and a space 42b constituting a second suction air passage 43b, which is an example of a second air passage, are provided in a circulation fan case 50. And since it forms along the outer peripheral part of the ventilation fan case 60, it becomes the space of the substantially triangular prism shape where one surface curved concavely.

  For this reason, the first suction port 2a and the second suction port 2b of the air volume adjusting device 1A have a substantially trapezoidal shape with one side curved in a concave shape in accordance with the shape of the space 42a and the space 42b, and the opening area is wide. It is trying to become.

  In addition, the first damper frame 21a and the second damper frame 21b of the air volume adjusting device 1A are arranged in accordance with the shapes of the first suction port 2a and the second suction port 2b, and the suction port 52 of the circulation fan unit 5. The opposing surfaces are curved in a concave shape so that the suction port 52 is not blocked and the flow of air sucked from the suction port 52 is not hindered.

  Here, in the ventilation fan case 60, in order to ensure the air volume of the air passing through the first suction air passage 43a, a portion where the blowing portion 60a is formed is configured, for example, in a straight line to expand the space 42a.

  The air conditioner 4 </ b> A includes an exhaust port 44 that communicates with the air outlet 60 a of the ventilation fan unit 6 on the side surface of the main body case 41. Further, a sub suction port 45 is provided on the other side surface of the main body case 41. Thereby, in the air conditioner 4 </ b> A, a sub suction air passage 46 communicating with the suction port 62 of the ventilation fan unit 6 is formed from the sub suction port 45.

  Here, in order to partition the sub suction air passage 46 and the second suction port 2b and prevent the air passing through the sub suction air passage 46 from leaking from the second suction port 2b, An air passage shielding plate 60b that contacts the inner surface of the case 41 is provided. In addition, the 1st suction inlet 2a side is provided with the function which shields an air path as a structure which contact | abuts a part of blowing part 60a of the ventilation fan case 60 with the inner surface of the main body case 41, for example.

  In the air conditioner 4 </ b> A, the front panel 7 is attached to the lower portion of the chassis 40. The front panel 7 is formed with a suction grill 70 facing the suction port 52 of the circulation fan unit 5 and the first suction port 2a and the second suction port 2b of the air volume adjusting device 1A. The filter 71 is detachably attached.

  Further, the front panel 7 is formed with an opening through which the air outlet 53a of the air outlet unit 53 is exposed.

  Here, when the first damper 20a and the second damper 20b are opened, a part of the first damper 20a and the second damper 20b protrudes from the lower surface of the air volume adjusting device 1A. In order to suppress the height of the front panel 7, the gap between the filter 71 and the lower surface of the air volume adjusting device 1 </ b> A is configured to be narrow, so the mounting position of the filter 71 is set to the rotation shaft 23 a of the first damper 20 a and the first The filter 71 does not hinder the opening and closing of the first damper 20a and the second damper 20b up to the vicinity of the rotation shaft 23b of the second damper 20b.

  The air conditioner 4 </ b> A includes a substrate box 47 in the main body case 41. The board box 47 is mounted with a board (not shown) that performs control of the fan motor of the circulation fan unit 5 and the ventilation fan unit 6, the motor 30 of the air volume adjusting device 1A, and the like, and processing of output of a temperature sensor (not shown).

<Example of installation of air conditioner according to this embodiment>
FIG. 12 is a configuration diagram of a bathroom showing an installation example of an air conditioner. The air conditioner 4 </ b> A is installed on the ceiling of the bathroom 100. The ceiling panel of the bathroom 100 is formed with an opening into which the main body case 41 of the air conditioner 4A described with reference to FIG. 8 or the like is placed. The air conditioner 4A is suspended from the ceiling so that the front panel 7 is exposed. Or, it is attached in a form fixed to a ceiling panel.

  In the air conditioner 4A attached to the ceiling of the bathroom 100, an exhaust duct joint 44a is attached to the exhaust port 44, and an exhaust duct 80 is connected to the exhaust duct joint 44a. The exhaust duct 80 is connected to an outdoor grill 80a attached to the outer wall 101 of a building (not shown), and is configured to be able to exhaust the air sucked from the bathroom 100 or the like by the air conditioner 4A to the outside through the exhaust duct 80.

  In the air conditioner 4A, a sub suction duct joint 45a is attached to the sub suction port 45, and a sub suction duct 81 is connected to the sub suction duct joint 45a. The sub-suction duct 81 is connected to a sub-suction grill 81 a installed in the washroom 102 and is configured to suck air from the washroom 102. The sub suction grill 81a may be provided in a toilet (not shown).

  The air conditioner 4A executes, for example, a heating operation mode, a ventilation operation mode, a drying operation mode, and a cool air operation mode by the operation of the operation unit 9 installed in the washroom 102.

  The heating operation mode is an operation mode in which the first air inlet 2a and the second air inlet 2b are closed by the operation of the air volume adjusting device 1A, and the hot air is blown into the bathroom 100 by the operation of the circulation fan unit 5 and the air outlet unit 53. It is.

  The ventilation operation mode is an operation mode in which the first suction port 2a and the second suction port 2b are opened by the operation of the air volume adjusting device 1A, and the bathroom 100 and other rooms are ventilated by the operation of the ventilation fan unit 6.

  The drying operation mode means that the first air inlet 2a and the second air inlet 2b are opened by the operation of the air volume adjusting device 1A, and hot air is blown out to the bathroom 100 by the operation of the circulation fan unit 5 and the air outlet unit 53. This is an operation mode in which the bathroom 100 is ventilated by the operation of the ventilation fan unit 6.

  The cool air operation mode is an operation mode in which the first air inlet 2a and the second air inlet 2b are closed by the operation of the air volume adjusting device 1A, and the air is blown into the bathroom 100 by the operation of the circulation fan unit 5 and the air outlet unit 53. is there.

<Operation example of the air conditioner of this embodiment>
FIG. 13 is an operation explanatory view showing a ventilation air passage in the air conditioner of the present embodiment. Next, the operation of the air conditioner 4A of the present embodiment will be described with reference to each drawing.

  The air conditioner 4A operates the first damper 20a and the second damper 20b by the operation of the air volume adjusting device 1A in the operation mode in which the bathroom 100 and other rooms are ventilated, such as the ventilation operation mode and the drying operation mode. The first suction port 2a and the second suction port 2b are opened.

  When the fan 61 is rotationally driven, the ventilation fan unit 6 sucks air from the suction port 62 and generates a flow of air discharged from the blowing part 60a.

  As a result, the air in the bathroom 100 shown in FIG. 12 passes through the suction grille 70 of the front panel 7 and passes through the first suction air passage 43a from the first suction port 2a as shown in FIG. 13 (a). And sucked into the ventilation fan unit 6.

  Further, the air in the bathroom 100 shown in FIG. 12 passes through the suction grille 70 of the front panel 7 and passes through the second suction air passage 43b from the second suction port 2b as shown in FIG. 13B. It is sucked into the ventilation fan unit 6.

  Furthermore, the air in the bathroom 102 and the toilet air (not shown) shown in FIG. 12 passes through the auxiliary suction grille 81a and the auxiliary suction duct 81 through the auxiliary suction air passage 46 from the auxiliary suction port 45 as shown in FIG. It is sucked into the ventilation fan unit 6 through.

  As shown in FIG. 13A, the air sucked into the ventilation fan unit 6 is discharged from the exhaust port 44 and is discharged to the outside through the exhaust duct 80 and the outdoor grill 80a shown in FIG.

  Thus, in the air conditioner 4A, the space 42a between the outer periphery of the circulation fan case 50 of the circulation fan unit 5 and the ventilation fan case 60 of the ventilation fan unit 6 and the inner surface of one corner of the main body case 41 is formed. Utilizing this, the first suction air passage 43a is formed.

  Further, the second suction air passage 43 b is formed by utilizing a space 42 b between the outer peripheral portions of the circulation fan case 50 and the ventilation fan case 60 and the inner surface of the other corner portion of the main body case 41.

  Thereby, the 1st inlet 2a and the 2nd inlet 2b can be formed as an air inlet, and it becomes possible to provide the air inlet in two places. Therefore, the opening area of the air suction port from the bathroom 100 can be increased without increasing the size of the main body case 41.

  In this way, by increasing the opening area of the air inlet, the amount of suction air from the bathroom 100 can be increased, and the required ventilation air volume can be reduced without increasing the fan rotation speed of the ventilation fan unit 6. It can be secured.

  In addition, since the fan rotation speed can be kept low without reducing the ventilation air volume, noise can be reduced. Furthermore, since the suction port 62 of the ventilation fan unit 6 faces upward, it is possible to suppress sound leakage from the first suction port 2a and the second suction port 2b.

  Moreover, since the suction wind speed from the bathroom 100 is suppressed low, generation | occurrence | production of the eddy which causes a noise, peeling of an airflow, etc. is suppressed.

  Furthermore, the intake pressure loss from the bathroom 100 can be reduced by increasing the opening area of the air inlet from the bathroom 100.

<Operation example of the air volume adjusting device of the present embodiment>
14 and 15 are operation explanatory views of damper opening / closing in the air volume adjusting device of the present embodiment. Next, an operation example of the air volume adjusting device 1A of the present embodiment will be described with reference to each drawing.

  The air conditioner 4A provided with the air volume adjusting device 1A operates the first damper 20a and the second damper 20b by the operation of the air volume adjusting device 1A in the operation mode in which the bathroom 100 is not ventilated such as the heating operation mode, The first suction port 2a and the second suction port 2b are closed.

  That is, when the motor 30 of the damper driving unit 3 is rotationally driven so as to rotate by a predetermined angle in a predetermined direction for closing the damper, the first link mechanism 32a attached to the shaft 30a of the motor 30 has the shaft portion 33a. Is rotated around the rotation fulcrum.

  In the first link mechanism 32a, the rotating shaft 23a of the first damper 20a is attached to the shaft portion 33a, and the motor 30 is driven to rotate in a predetermined direction, so that the first damper 20a has a rotating shaft. The first suction port 2a is closed as shown in FIG.

  The first link mechanism 32a is connected to the second link mechanism 32b by a connecting portion 34d. The first link mechanism 32a rotates about the shaft portion 33a as a rotation fulcrum, and the first link portion 34a swings. When it moves, the driving force is transmitted to the second link portion 34b, and the second link mechanism 32b rotates about the shaft portion 33b as a rotation fulcrum.

  In the second link mechanism 32b, the rotary shaft 23b of the second damper 20b is attached to the shaft portion 33b, and the second link mechanism 32b is interlocked with the operation of the first damper 20a by the motor 30 being rotated in a predetermined direction. Then, the second damper 20b rotates about the rotation shaft 23b as a rotation fulcrum, and closes the second suction port 2b as shown in FIG.

  Here, if the 1st damper 20a closes the 1st suction inlet 2a, the 1st damper 20a will contact | abut to the sticking prevention convex part 27a, as shown in FIG. Thereby, in the state which closed the 1st inlet 2a, the 1st damper 20a and the 1st inlet 2a will be in the state contact | abutted with a small contact area.

  Similarly, when the second suction port 2b is closed by the second damper 20b, the second damper 20b comes into contact with the sticking prevention convex portion 27b. Thereby, in the state where the second suction port 2b is closed, the second damper 20b and the second suction port 2b are in contact with each other with a small contact area.

  As described above, the air conditioner 4A operates in the operation mode for ventilating the bathroom 100 and other rooms such as the ventilation operation mode and the drying operation mode, and the first damper 20a and the second damper 20b are operated by the air volume adjustment device 1A. Is operated to open the first suction port 2a and the second suction port 2b.

  That is, when the motor 30 of the damper driving unit 3 is rotationally driven to rotate at a predetermined angle in a predetermined direction for opening the damper, the first link mechanism 32a to which the driving force of the motor 30 is directly transmitted as described above. The first damper 20a attached to the rotary shaft rotates about the rotation shaft 23a as a rotation fulcrum and opens the first suction port 2a as shown in FIG.

  In the second link mechanism 32b, the driving force of the motor 30 is transmitted from the first link mechanism 32a, and the second damper 20b attached to the second link mechanism 32b is interlocked with the operation of the first damper 20a. Then, the rotary shaft 23b is rotated about the rotation fulcrum, and the second suction port 2b is opened as shown in FIG.

  Here, by changing the opening angle of the first damper 20a and the second damper 20b, the amount of air sucked from the first suction port 2a and the amount of air sucked from the second suction port 2b are increased or decreased. . Thereby, in the air conditioner 4A, by adjusting the opening degree of the first damper 20a and the second damper 20b, the amount of air sucked from the bathroom 100 is increased and decreased, and the ventilation air volume is adjusted.

  Now, the air conditioner 4A is installed in the bathroom 100 as shown in FIG. 12, and the first damper 20a and the first suction are in a state where the first suction port 2a and the second suction port 2b are closed. In some cases, moisture, a bathing agent, or the like may adhere to a portion where the mouth 2a abuts and a portion where the second damper 20b and the second suction port 2b abut.

  If the damper and the suction port are in contact with each other, the damper may stick to the suction port due to the bathing agent or the calcium component in the water, and the damper may not be opened by the driving force of the motor. .

  If the damper cannot be opened, the configuration provided with the open / close sensor for detecting the opening / closing of the damper has a problem that the operation shifts to the error mode and the operation stops. Further, in a configuration that does not include an open / close sensor that detects the opening / closing of the damper, there is a problem that ventilation operation is performed with the damper closed, and ventilation cannot be performed.

  On the other hand, in the air volume adjusting device 1A of the present embodiment, when the first suction port 2a is closed by the first damper 20a, the first damper 20a comes into contact with the sticking prevention convex portion 27a. The 1 damper 20a and the 1st inlet 2a will be in the state contact | abutted with the line instead of the surface.

  Similarly, when the second suction port 2b is closed by the second damper 20b, the second damper 20b comes into contact with the sticking prevention convex portion 27b, so that the second damper 20b and the second suction port 2b are It will be in the state contact | abutted with the line instead of the surface.

  As a result, even if moisture or a bathing agent adheres to the part where the first damper 20a and the first suction port 2a abut and the part where the second damper 20b and the second suction port 2b abut, Adherence between the first damper 20a and the first suction port 2a and adhesion between the second damper 20b and the second suction port 2b are prevented.

  Accordingly, the damper can be reliably opened and closed by a drive source such as a motor, and the damper can be reliably opened and closed even when a plurality of suction ports are provided and a plurality of dampers are opened and closed by a single drive source.

  Therefore, the first damper 20a and the second damper 20b can be reliably opened and closed by the driving force of the single motor 30, and ventilation from the bathroom 100 can be achieved by shifting to the error mode or by not opening the damper. The problem of not being able to be solved can be solved. Here, prevention of sticking includes suppression of sticking.

  In the air conditioner 4A, as described above, the first suction port 2a and the second suction port 2b can be formed as the air suction ports, and the air suction ports can be provided at two locations. .

  And by providing the drive force transmission mechanism 31 which transmits the drive force of the motor 30 to both the 1st damper 20a and the 2nd damper 20b, the damper drive part 3 is made into the 1st inlet 2a and the 2nd It becomes possible to arrange | position between these suction inlets 2b.

  Thereby, it is possible to arrange the damper driving unit in a place where the suction port cannot be formed, and the degree of freedom in arranging the damper driving unit and the plurality of suction ports is improved. Therefore, it is possible to arrange the suction port at a location where the opening area can be increased without reducing the opening area of the suction port by the damper driving unit.

<Modification of the air volume adjusting device and the air conditioner of the present embodiment>
The air volume adjusting device of the present embodiment is incorporated in an air conditioner that forms a suction port on the outside of the fan case, and an air suction port for the circulation fan unit is formed on the outside of the circulation fan case or the ventilation fan case. If it is the structure which does, it is good also as a structure provided in the suction inlet of a circulation fan unit.

  Moreover, the structure provided in the air conditioner provided only with the ventilation fan unit or only the circulation fan unit may be sufficient.

  Furthermore, if it is an air conditioner which forms the air blower outlet on the outer side of a fan case, it is good also as a structure equipped with an air blower outlet. By providing the air volume adjusting device at the air outlet, it is possible to function as a louver that switches the blowing direction.

  In addition, the circulation fan unit and the ventilation fan unit are arranged one above the other, and the suction port formed in the fan case of the upper fan unit is formed on the lower surface instead of the upper surface of the fan case. A configuration may be adopted in which air is sucked in between.

  The anti-adhesion convex portion provided in the air volume adjusting device of the present embodiment has a triangular cross-sectional shape, but may have other shapes as long as the contact area is narrow. Further, although the sticking prevention convex portions are arranged in a continuous line shape, it may be a discontinuous arrangement such as a dot shape. Further, the sticking prevention convex portion may be provided on the damper side.

  The present invention is applied to an air conditioner having a ventilation function installed in a bathroom or the like.

It is an external appearance perspective view which shows an example of the air volume adjustment apparatus of this Embodiment. It is a disassembled perspective view which shows an example of the air volume adjustment apparatus of this Embodiment. It is a top view of the air volume adjusting device of this Embodiment. It is AA sectional drawing of the air volume adjustment apparatus of this Embodiment. It is BB sectional drawing of the air volume adjustment apparatus of this Embodiment. It is a block diagram which shows the detail of a driving force transmission mechanism. It is sectional drawing which shows the detail of a sticking prevention convex part. It is a perspective view which shows an example of the air conditioner of this Embodiment. It is a perspective view which shows an example of the air conditioner of this Embodiment. It is a top view which shows an example of the air conditioner of this Embodiment. It is a sectional side view which shows an example of the air conditioner of this Embodiment. It is a block diagram of the bathroom which shows the example of installation of an air conditioner. It is operation | movement explanatory drawing which shows the ventilation air path in the air conditioner of this Embodiment. It is operation | movement explanatory drawing of the damper opening and closing in the air volume adjusting device of this Embodiment. It is operation | movement explanatory drawing of the damper opening and closing in the air volume adjusting device of this Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1A ... Air volume adjusting device, 2a ... 1st inlet, 2b ... 2nd inlet, 3 ... Damper drive part, 4A ... Air conditioner, 5 ... Circulation fan unit , 6 ... Ventilation fan unit, 7 ... Front panel, 20a ... First damper, 20b ... Second damper, 23a ... Rotating shaft, 23b ... Rotating shaft, 27a, 27b: Anti-sticking convex part, 30 ... Motor, 30a ... Shaft, 31 ... Driving force transmission mechanism, 32a ... First link mechanism, 32b ... Second link mechanism, 33a ... shaft portion, 33b ... shaft portion, 34a ... first link portion, 34b ... second link portion, 35a ... shaft fitting portion, 36 ... O-ring, 40 ... Chassis, 41 ... Main body case, 42a ... Space, 42b ... Space, 43a ... No. Suction passage, 43b ... second suction passage, 50 ... circulation fan case, 52 ... suction port, 60 ... ventilation fan case, 62 ... suction port, 100 ... bathroom

Claims (6)

An air passage opening and closing member for opening and closing an air passage opening through which air passes;
A drive unit for driving the air passage opening and closing member;
The air passage opening and closing member that closed the air passage opening and the air passage opening are in positions where the air passage opening and abutment, and the air passage opening and closing member and a convex portion formed on at least one of the air passage opening. The air volume adjusting device characterized by this. The air volume adjusting device according to claim 1, wherein the air path opening / closing member opens and closes the air path opening by rotating around a rotation shaft. The air passage opening includes an independent first air passage opening and a second air passage opening,
The air passage opening and closing member includes a first air passage opening and closing member that opens and closes the first air passage opening, and a second air passage opening and closing member that opens and closes the second air passage opening.
The drive unit is disposed between the first air path opening and the second air path opening, and drives the first air path opening / closing member and the second air path opening / closing member. The air volume adjusting device according to claim 1 or 2. The air volume adjusting device according to claim 1, wherein the convex portion has a linear continuous shape. Air blowing means for sucking or blowing air;
An air volume adjusting device having an air passage opening through which air sucked by the air blowing means or air blown from the air blowing means passes,
The air volume adjusting device includes: an air path opening / closing member that opens and closes the air path opening;
A drive unit for driving the air passage opening and closing member;
The air passage opening and closing member that closed the air passage opening and the air passage opening are in contact with each other, and the air passage opening and closing member and a convex portion formed on at least one of the air passage opening are provided. An air conditioner characterized by. The air passage opening includes an independent first air passage opening and a second air passage opening,
The air passage opening and closing member includes a first air passage opening and closing member that opens and closes the first air passage opening, and a second air passage opening and closing member that opens and closes the second air passage opening.
The drive unit is disposed between the first air path opening and the second air path opening, and is driven to one of the first air path opening / closing member or the second air path opening / closing member. A driving means for transmitting a force, and a driving force transmitted to one of the first air path opening / closing member or the second air path opening / closing member, and the first air path opening / closing member or the second air path. The air-conditioning apparatus according to claim 5, further comprising a driving force transmission unit that transmits to the other of the opening and closing members.

Images