JP5884720B2

JP5884720B2 - Air conditioner

Info

Publication number: JP5884720B2
Application number: JP2012278420A
Authority: JP
Inventors: 寛之多田; 裕介塩野; 山田　俊明; 俊明山田
Original assignee: Daikin Industries Ltd
Current assignee: Daikin Industries Ltd
Priority date: 2012-12-20
Filing date: 2012-12-20
Publication date: 2016-03-15
Anticipated expiration: 2032-12-20
Also published as: JP2014122736A

Description

本発明は、上下風向板及び補助上下風向板が吹出口の近傍に配置された空気調和機に関
するものである。 The present invention relates to an air conditioner in which an up-and-down wind direction plate and an auxiliary up-and-down wind direction plate are arranged in the vicinity of an air outlet.

従来の空気調和機には、吸込口から吹出口に至る空気流路に配置された送風ファンと、
吹出口の近傍に配置された上下風向板と、上下風向板の上方に配置された補助上下風向板
とを備えたものがある。上下風向板及び補助上下風向板は、回動可能に支持され、吹出口
の長手方向に沿って延びている。また、吹出口に至る空気流路の上壁部が、前方に向かっ
て下向きに傾斜するように設けられ、補助上下風向板が、下向きに傾斜する上壁部の近傍
に配置されている。 In a conventional air conditioner, a blower fan arranged in an air flow path from the suction port to the blowout port,
There is a thing provided with the up-and-down wind direction board arranged near the blower outlet, and the auxiliary up-and-down wind direction board arranged above the up-and-down wind direction board. The vertical wind direction plate and the auxiliary vertical wind direction plate are rotatably supported and extend along the longitudinal direction of the air outlet. Moreover, the upper wall part of the air flow path leading to the air outlet is provided so as to incline downward toward the front, and the auxiliary vertical wind direction plate is disposed in the vicinity of the upper wall part inclining downward.

特開２００９−７９８４６号公報JP 2009-79846 A

上記の空気調和機では、補助上下風向板が、下向きに傾斜する上壁部の近傍に配置され
ているので、その上壁部に沿って流れる吹出空気が、補助上下風向板に衝突して風量が低
下してしまう問題がある。そこで、本発明者らは、補助上下風向板を上壁部に当接させて
、補助上下風向板を上壁部と略平行にすることにより、上壁部に沿って流れる吹出空気の
風量を多くしている。 In the above air conditioner, the auxiliary up-and-down wind direction plate is disposed in the vicinity of the upper wall portion that is inclined downward, so that the blown air flowing along the upper wall portion collides with the auxiliary up-and-down air direction plate and the air volume is increased. There is a problem that decreases. Therefore, the present inventors bring the auxiliary vertical airflow direction plate into contact with the upper wall portion and make the auxiliary vertical airflow direction plate substantially parallel to the upper wall portion, thereby reducing the air volume of the blown air flowing along the upper wall portion. There are many.

しかしながら、冷房運転時において、補助上下風向板を上壁部に当接させた場合、送風
ファンからの冷気が補助上下風向板の上面側（補助上下風向板と上壁部との間）にほとん
ど流れないので、補助上下風向板の上面において結露して水滴が付くという問題がある。 However, when the auxiliary up-and-down airflow direction plate is brought into contact with the upper wall during cooling operation, the cool air from the blower fan is almost on the upper surface side (between the auxiliary up-and-down airflow direction plate and the upper wall). Since it does not flow, there is a problem in that condensation forms on the upper surface of the auxiliary up-and-down wind direction plate and water drops are attached.

そこで、本発明の目的は、冷房運転時において、補助上下風向板の上面において結露し
て水滴が付くことを防止できる空気調和機を提供することである。 Therefore, an object of the present invention is to provide an air conditioner capable of preventing condensation on the upper surface of an auxiliary up-and-down wind direction plate and water droplets from being attached during cooling operation.

第１の発明にかかる空気調和機は、吸込口から吹出口に至る空気流路に配置された送風
ファンと、前記吹出口の近傍において回動可能に支持された上下風向板と、前記上下風向
板の上方において回動可能に支持された補助上下風向板と、前記補助上下風向板を制御す
る制御手段とを備え、前記制御手段は、冷房運転時において、前記補助上下風向板の一部
が前記空気流路の上壁部に当接した第１状態で運転しているときに、所定の第１タイミン
グで一時的に前記補助上下風向板を回動させて、前記補助上下風向板が前記空気流路の上
壁部に当接しない第２状態に変更した後、所定の第２タイミングで自動的に前記補助上下
風向板を回動させて、前記第１状態に戻すことを特徴とする。 An air conditioner according to a first aspect of the present invention includes a blower fan disposed in an air flow path from a suction port to a blowout port, a vertical wind direction plate supported rotatably in the vicinity of the blowout port, and the vertical wind direction. An auxiliary up-and-down wind direction plate rotatably supported above the plate, and a control means for controlling the auxiliary up-and-down air direction plate, wherein the control means has a part of the auxiliary up-and-down air direction plate during cooling operation. When operating in the first state in contact with the upper wall portion of the air flow path, the auxiliary vertical wind direction plate is temporarily rotated at a predetermined first timing so that the auxiliary vertical wind direction plate is After changing to the second state that does not contact the upper wall portion of the air flow path, the auxiliary up-and-down wind direction plate is automatically rotated at a predetermined second timing to return to the first state. .

この空気調和機では、補助上下風向板の上面側（補助上下風向板と上壁部との間）を冷
気がほとんど流れない状態で冷房運転が行われているときに、所定のタイミングで一時的
に、補助上下風向板の上面側（補助上下風向板と上壁部との間）を冷気が流れる状態に変
更されるので、補助上下風向板の上面において結露して水滴が付くことを防止できる。 In this air conditioner, when the cooling operation is performed in a state where the cooling air hardly flows on the upper surface side (between the auxiliary vertical wind direction plate and the upper wall portion) of the auxiliary vertical wind direction plate, the air conditioner is temporarily at a predetermined timing. Further, since the upper surface side of the auxiliary up-and-down wind direction plate (between the auxiliary up-and-down wind direction plate and the upper wall portion) is changed to a state in which the cold air flows, it is possible to prevent condensation from forming on the upper surface of the auxiliary up-and-down wind direction plate .

第２の発明にかかる空気調和機では、第１の発明にかかる空気調和機において、冷房運
転時において、前記補助上下風向板が前記第１状態にある時間が、前記補助上下風向板が
前記第２状態にある時間より長いことを特徴とする。
第３の発明にかかる空気調和機では、第１または第２の発明にかかる空気調和機におい
て、前記空気流路の上壁部が、前方に向かって下向きに傾斜した第１上壁部と、前記第１
上壁部の前方において前記空気流路が広がるように配置された第２上壁部とを有し、前記
制御手段は、冷房運転時において、前記補助上下風向板の一部が前記第２上壁部に当接し
た第１状態で運転しているときに、所定のタイミングで一時的に前記補助上下風向板を回
動させて、前記補助上下風向板が前記第２上壁部に当接しない第２状態に変更し、前記第
１状態および前記第２状態にある前記補助上下風向板は、冷房運転時、前記第１上壁部を
延長した面より前記第２上壁部側に配置されることを特徴とする。 In the air conditioner according to the second aspect of the present invention, in the air conditioner according to the first aspect of the present invention, during the cooling operation, the time during which the auxiliary up-and-down wind direction plate is in the first state, It is characterized by being longer than the time in two states.
In the air conditioner according to the third aspect of the invention, in the air conditioner according to the first or second aspect of the invention, the upper wall portion of the air flow path is inclined downwardly toward the front, and the first upper wall portion, The first
A second upper wall portion disposed so that the air flow path is widened in front of the upper wall portion, and the control means is configured such that a part of the auxiliary up-and-down wind direction plate is in the second upper side during cooling operation. When operating in the first state in contact with the wall portion, the auxiliary up-and-down wind direction plate is temporarily rotated at a predetermined timing so that the auxiliary up-and-down wind direction plate contacts the second upper wall portion. The auxiliary up-and-down wind direction plate in the first state and the second state is disposed closer to the second upper wall than the surface extending the first upper wall during cooling operation. It is characterized by being.

この空気調和機では、空気流路の上壁部が、前方に向かって下向きに傾斜した第１上壁
部と、第１上壁部の前方において空気流路が広がるように配置された第２上壁部とを有す
る場合において、補助上下風向板の上面において結露して水滴が付くことを防止できる。
また、補助上下風向板が第１上壁部を延長した面より第２上壁部側に配置されるので、補
助上下風向板の一部が第２上壁部に当接した状態で冷房運転が行われている場合において
、補助上下風向板は送風ファンからの冷気の流れ方向に配置されない。したがって、送風
ファンからの冷気が補助上下風向板に衝突することで風量が低下することを防止できる。 In this air conditioner, the upper wall part of the air flow path is inclined such that the first upper wall part is inclined downward toward the front, and the second is arranged so that the air flow path is widened in front of the first upper wall part. In the case of having the upper wall portion, it is possible to prevent condensation on the upper surface of the auxiliary up-and-down wind direction plate and water droplets.
In addition, since the auxiliary up-and-down wind direction plate is disposed on the second upper wall side from the surface extending from the first upper wall portion, the cooling operation is performed with a part of the auxiliary up-and-down air direction plate in contact with the second upper wall portion. Is performed, the auxiliary up-and-down wind direction plate is not arranged in the flow direction of the cold air from the blower fan. Therefore, it is possible to prevent the air volume from being reduced by the cold air from the blower fan colliding with the auxiliary up-down wind direction plate.

第４の発明にかかる空気調和機では、第１〜第３のいずれかの発明にかかる空気調和機
において、冷房運転時間に基づいて決定されたタイミングで、前記第１状態から前記第２
状態に変更することを特徴とする。 In the air conditioner according to a fourth aspect of the present invention, in the air conditioner according to any one of the first to third aspects, the second state from the first state at the timing determined based on the cooling operation time.
It is characterized by changing to a state.

この空気調和機では、冷房運転が長時間継続されて、補助上下風向板の上面において結
露して水滴が付くようになったときに、補助上下風向板の上面側を冷気が流れる状態に変
更できる。 In this air conditioner, when the cooling operation is continued for a long time and dew condensation occurs on the upper surface of the auxiliary up-and-down wind direction plate and water droplets are attached, the air conditioner can be changed to a state in which the cool air flows on the upper surface side of the auxiliary up-and-down wind direction plate. .

第５の発明にかかる空気調和機では、第１〜第４のいずれかの発明にかかる空気調和機
において、前記制御手段は、吹出温度に基づいて決定されたタイミングで、前記第１状態
から前記第２状態に変更することを特徴とする。 In the air conditioner according to a fifth aspect of the present invention, in the air conditioner according to any one of the first to fourth aspects of the invention, the control means starts from the first state at a timing determined based on the blowing temperature. It changes to a 2nd state, It is characterized by the above-mentioned.

この空気調和機では、吹出温度が低く、補助上下風向板の上面において結露して水滴が
付く運転状態において、補助上下風向板の上面側を冷気が流れる状態に変更できる。 In this air conditioner, in the operation state in which the blowing temperature is low and condensation is formed on the upper surface of the auxiliary up-and-down wind direction plate and water droplets are attached, the upper surface side of the auxiliary up-and-down air direction plate can be changed to a state in which cold air flows.

第６の発明にかかる空気調和機では、第１〜第５のいずれかの発明にかかる空気調和機
において、前記空気流路に配置された室内熱交換器を備え、前記制御手段は、ファン回転
数、室内熱交温度及び室内温度に基づいて決定されたタイミングで、前記第１状態から前
記第２状態に変更することを特徴とする。 An air conditioner according to a sixth invention is the air conditioner according to any one of the first to fifth inventions, comprising an indoor heat exchanger disposed in the air flow path, wherein the control means rotates the fan. The first state is changed to the second state at a timing determined based on the number, the indoor heat exchange temperature, and the room temperature.

この空気調和機では、ファン回転数、室内熱交温度、室内温度に基づいて吹出温度を推
定して、その吹出温度に基づいて補助上下風向板を制御できるので、吹出温度を検出する
必要がない。 In this air conditioner, the blowing temperature can be estimated based on the fan rotation speed, the indoor heat exchange temperature, and the room temperature, and the auxiliary up-and-down wind direction plate can be controlled based on the blowing temperature, so there is no need to detect the blowing temperature. .

以上の説明に述べたように、本発明によれば、以下の効果が得られる。 As described above, according to the present invention, the following effects can be obtained.

第１の発明では、補助上下風向板の上面側（補助上下風向板と上壁部との間）を冷気が
ほとんど流れない状態で冷房運転が行われているときに、所定のタイミングで一時的に、
補助上下風向板の上面側（補助上下風向板と上壁部との間）を冷気が流れる状態に変更さ
れるので、補助上下風向板の上面において結露して水滴が付くことを防止できる。 In the first aspect of the invention, when the cooling operation is performed in a state where the cool air hardly flows on the upper surface side (between the auxiliary vertical wind direction plate and the upper wall portion) of the auxiliary vertical wind direction plate, it is temporarily at a predetermined timing. In addition,
Since the upper surface side of the auxiliary up-and-down wind direction plate (between the auxiliary up-and-down wind direction plate and the upper wall portion) is changed to a state in which cool air flows, it is possible to prevent condensation from forming on the upper surface of the auxiliary up-and-down wind direction plate.

第３の発明では、空気流路の上壁部が、前方に向かって下向きに傾斜した第１上壁部と
、第１上壁部の前方において空気流路が広がるように配置された第２上壁部とを有する場
合において、補助上下風向板の上面において結露して水滴が付くことを防止できる。また
、補助上下風向板が第１上壁部を延長した面より第２上壁部側に配置されるので、補助上
下風向板の一部が第２上壁部に当接した状態で冷房運転が行われている場合において、補
助上下風向板は送風ファンからの冷気の流れ方向に配置されない。したがって、送風ファ
ンからの冷気が補助上下風向板に衝突することで風量が低下することを防止できる。 In the third aspect of the invention, the upper wall portion of the air flow path is inclined such that the first upper wall section is inclined downward toward the front, and the second is disposed so that the air flow path is widened in front of the first upper wall section. In the case of having the upper wall portion, it is possible to prevent condensation on the upper surface of the auxiliary up-and-down wind direction plate and water droplets. In addition, since the auxiliary up-and-down wind direction plate is disposed on the second upper wall side from the surface extending from the first upper wall portion, the cooling operation is performed with a part of the auxiliary up-and-down air direction plate in contact with the second upper wall portion. Is performed, the auxiliary up-and-down wind direction plate is not arranged in the flow direction of the cold air from the blower fan. Therefore, it is possible to prevent the air volume from being reduced by the cold air from the blower fan colliding with the auxiliary up-down wind direction plate.

第４の発明では、冷房運転が長時間継続されて、補助上下風向板の上面において結露し
て水滴が付くようになったときに、補助上下風向板の上面側を冷気が流れる状態に変更で
きる。 In the fourth aspect of the invention, when the cooling operation is continued for a long period of time and condensation occurs on the upper surface of the auxiliary up-and-down wind direction plate and water droplets are attached, the upper surface side of the auxiliary up-and-down air direction plate can be changed to a state in which cool air flows. .

第５の発明では、吹出温度が低く、補助上下風向板の上面において結露して水滴が付く
運転状態において、補助上下風向板の上面側を冷気が流れる状態に変更できる。 In the fifth aspect of the invention, in the operation state where the blowout temperature is low and the dew condensation is formed on the upper surface of the auxiliary up-and-down wind direction plate and water droplets are attached, the upper surface side of the auxiliary up-and-down air direction plate can be changed to a state in which cold air flows.

第６の発明では、ファン回転数、室内熱交温度、室内温度に基づいて吹出温度を推定し
て、その吹出温度に基づいて補助上下風向板を制御できるので、吹出温度を検出する必要
がない。 In the sixth aspect of the invention, since the blowing temperature can be estimated based on the fan rotation speed, the indoor heat exchange temperature, and the room temperature, and the auxiliary up / down wind direction plate can be controlled based on the blowing temperature, there is no need to detect the blowing temperature. .

本発明の実施形態に係る空気調和機の外観図である。1 is an external view of an air conditioner according to an embodiment of the present invention. 補助上下風向板の一部が上壁部に当接した状態で冷房運転が行われるときの空気調和機の断面図である。It is sectional drawing of an air conditioner when air_conditionaing | cooling operation is performed in the state which a part of auxiliary | assistant vertical wind direction board contact | abutted to the upper wall part. 補助上下風向板の構成を説明する図である。It is a figure explaining the structure of an auxiliary | assistant vertical wind direction board. 補助上下風向板が上壁部に当接しない状態で冷房運転が行われるときの空気調和機の断面図である。It is sectional drawing of an air conditioner when a cooling operation is performed in the state which an auxiliary | assistant vertical wind direction plate does not contact | abut on an upper wall part. 図１に示す空気調和機の機能ブロック図である。It is a functional block diagram of the air conditioner shown in FIG. 図１に示す空気調和機のフローを示すフローチャートである。It is a flowchart which shows the flow of the air conditioner shown in FIG.

以下、図面を参照しつつ本発明の実施形態に係る空気調和機について説明する。 Hereinafter, an air conditioner according to an embodiment of the present invention will be described with reference to the drawings.

［空気調和機の構成］
本発明の実施形態に係る空気調和機は、図１に示す室内機１と、図示しない室外機とで
構成されている。室内機１は、全体として一方向に細長い形状をしており、その長手方向
が水平となるように室内の壁面に据え付けられている。なお、以下の説明において、室内
機１が取り付けられる壁から突出する方向を「前方」と称し、その反対の方向を「後方」
と称する。また、図１に示す左右方向を単に「左右方向」と称する。 [Configuration of air conditioner]
An air conditioner according to an embodiment of the present invention includes an indoor unit 1 shown in FIG. 1 and an outdoor unit (not shown). The indoor unit 1 has an elongated shape in one direction as a whole, and is installed on the wall surface of the room so that its longitudinal direction is horizontal. In the following description, the direction protruding from the wall to which the indoor unit 1 is attached is referred to as “front”, and the opposite direction is “rear”.
Called. Further, the left-right direction shown in FIG. 1 is simply referred to as “left-right direction”.

［室内機１］
図２に示すように、室内機１は、ケーシング２と、ケーシング２内に収容された送風フ
ァン３、室内熱交換器４、左右風向板５、上下風向板６、補助上下風向板７等を備えてい
る。また、室内機１には、室内熱交換器４の温度（室内熱交温度）を検出する熱交温度セ
ンサ８と、室内温度を検出する室内温度センサ９が設けられている。 [Indoor unit 1]
As shown in FIG. 2, the indoor unit 1 includes a casing 2, a blower fan 3 housed in the casing 2, an indoor heat exchanger 4, left and right wind direction plates 5, up and down wind direction plates 6, auxiliary up and down wind direction plates 7 and the like. I have. The indoor unit 1 is provided with a heat exchange temperature sensor 8 that detects the temperature of the indoor heat exchanger 4 (indoor heat exchange temperature) and an indoor temperature sensor 9 that detects the room temperature.

ケーシング２は、略直方体状のグリル１１と、グリル１１の前面を覆う前面パネル１２
とを有する。グリル１１の上面には、左右方向に長い格子状の開口である吸込口１３が形
成されており、グリル１１の下面には、左右方向に長い矩形状の開口である吹出口１４が
形成されている。そして、空調運転時には、吸込口１３から吹出口１４に至る空気流路に
配置された送風ファン３が駆動されることによって吸込口１３から吸い込まれた空気は、
室内熱交換器４において加熱または冷却された後、吹出口１４から室内に吹き出される。 The casing 2 includes a substantially rectangular parallelepiped grill 11 and a front panel 12 that covers the front surface of the grill 11.
And have. A suction port 13 that is a grid-like opening that is long in the left-right direction is formed on the upper surface of the grill 11, and an air outlet 14 that is a rectangular opening that is long in the left-right direction is formed on the lower surface of the grill 11. Yes. And at the time of air-conditioning operation, the air sucked from the suction port 13 by driving the blower fan 3 arranged in the air flow path from the suction port 13 to the blower outlet 14 is
After being heated or cooled in the indoor heat exchanger 4, the air is blown into the room from the outlet 14.

＜空気流路＞
吸込口１３から吹出口１４に至る空気流路のうち左右風向板５から吹出口１４に至る空
気流路の上壁部１５は、図２に示すように、前方に向かって下向きに傾斜した第１上壁部
１６と、第１上壁部１６の前方において空気流路が広がるように配置された第２上壁部１
７によって形成されている。第２上壁部１７は、具体的には、前方に向かって略水平に延
在しており、第１上壁部１６を延長した面Ｓに対しておよそ３０°上方に広がるように配
置されている。また、左右風向板５から吹出口１４に至る空気流路の下壁部１８は、グリ
ル１１によって形成されており、前方に向かって下向きに傾斜している。なお、第１上壁
部１６を延長した面Ｓより第２上壁部１７側（上方）は、第１上壁部１６を延長した面Ｓ
より下壁部１８側（下方）に比べて、送風ファン３からの吹出空気の風量が少ない。 <Air channel>
As shown in FIG. 2, the upper wall portion 15 of the air flow path extending from the left and right wind direction plates 5 to the blower outlet 14 among the air flow paths extending from the suction inlet 13 to the blowout outlet 14 is inclined first downward. 1 upper wall part 16 and 2nd upper wall part 1 arrange | positioned so that an air flow path may spread in front of the 1st upper wall part 16
7. Specifically, the second upper wall portion 17 extends substantially horizontally toward the front, and is disposed so as to expand upward by about 30 ° with respect to the surface S extending the first upper wall portion 16. ing. Moreover, the lower wall part 18 of the air flow path from the left-right wind direction board 5 to the blower outlet 14 is formed by the grill 11, and inclines downward toward the front. The second upper wall portion 17 side (upward) from the surface S obtained by extending the first upper wall portion 16 is the surface S obtained by extending the first upper wall portion 16.
Compared with the lower wall 18 side (downward), the air volume of the blown air from the blower fan 3 is small.

＜上下風向板６＞
上下風向板６は、図２に示すように、吹出口１４の近傍に配置され、支持部材１９によ
って回転軸１９ａの周りを回動可能に支持されている。この上下風向板６は、吹出口１４
の長手方向（左右方向）に沿って延びており、上下方向について吹出口１４から吹き出さ
れる空気の風向を変更すると共に、吹出口１４の開閉を行う。 <Up-down wind direction plate 6>
As shown in FIG. 2, the vertical wind direction plate 6 is disposed in the vicinity of the air outlet 14, and is supported by the support member 19 so as to be rotatable around the rotation shaft 19 a. The up-and-down wind direction plate 6 is connected to the air outlet 14.
It extends along the longitudinal direction (left and right direction) of the air and changes the air direction of the air blown out from the air outlet 14 in the vertical direction, and opens and closes the air outlet 14.

この上下風向板６は、図示しない駆動モータが駆動されることによって、回転軸１９ａ
を中心に上側構造当たり（全閉状態）から下側構造当たり（全開状態）までの範囲を回動
できるようになっている。この上下風向板６は、図示しないリモコンの操作によって制御
可能であって、所定の範囲（上限位置から下限位置までの範囲）において上下風向板６を
往復可動させる「スイング動作」を行うことができる。また、リモコンの操作によって、
上下風向板６を上限位置から下限位置までの範囲において所望の位置に固定することがで
きる。 The up-and-down wind direction plate 6 is driven by a driving motor (not shown) to rotate the rotating shaft 19a.
The range from the upper structure contact (fully closed state) to the lower structure contact (fully open state) can be rotated around the center. The up / down wind direction plate 6 can be controlled by an operation of a remote controller (not shown), and can perform a “swing operation” in which the up / down wind direction plate 6 is reciprocally movable within a predetermined range (range from the upper limit position to the lower limit position). . Also, by operating the remote control,
The vertical wind direction plate 6 can be fixed at a desired position in the range from the upper limit position to the lower limit position.

＜補助上下風向板７＞
補助上下風向板７は、図２に示すように、上下風向板６の上方において第２上壁部１７
の近傍に配置され、支持部材２０によって回転軸２０ａの周りを回動可能に支持されてい
る。この補助上下風向板７は、吹出口１４の長手方向（左右方向）に沿って延びており、
上下風向板６と共に上下方向について吹出口１４から吹き出される空気の風向を変更する
。なお、以下においては、補助上下風向板７の２つの面のうち下方側を表面７ａ（下面）
、上方側を裏面７ｂ（上面）と称する。 <Auxiliary vertical wind direction plate 7>
As shown in FIG. 2, the auxiliary up-and-down air direction plate 7 has a second upper wall portion 17 above the up-and-down air direction plate 6.
It is arrange | positioned in the vicinity of and is supported by the support member 20 so that the periphery of the rotating shaft 20a can be rotated. This auxiliary up-and-down wind direction board 7 is extended along the longitudinal direction (left-right direction) of the blower outlet 14,
The wind direction of the air blown out from the blower outlet 14 in the vertical direction together with the vertical wind direction plate 6 is changed. In the following description, the lower side of the two surfaces of the auxiliary vertical wind direction plate 7 is the surface 7a (lower surface).
The upper side is referred to as a back surface 7b (upper surface).

補助上下風向板７は、図３（ａ）に示すように、矩形状の板状部材であって、その裏面
７ｂには、３つの支持部材２０が配置されている。支持部材２０は、取付孔２１を有して
おり、第２上壁部１７に配置された図示しない支持軸に回転可能に取り付けられる。した
がって、補助上下風向板７は、支持軸の中心軸である回転軸２０ａの周りを回転可能であ
る。また、図３（ｂ）に示すように、補助上下風向板７の回転軸２０ａに垂直な断面にお
いて、補助上下風向板７の後端部７ｄが、補助上下風向板７の後端に近づくにつれて回転
軸２０ａから離れる方向に傾斜している（図３（ｂ）では、補助上下風向板７の後端部７
ｄが、後方に近づくにつれて下方に傾斜している）。なお、本実施形態において、補助上
下風向板７とは、矩形状の板状部材を指し、支持部材２０や図示しない支持軸は、補助上
下風向板７には含まれない。 As shown in FIG. 3A, the auxiliary up-and-down wind direction plate 7 is a rectangular plate-shaped member, and three support members 20 are arranged on the back surface 7b. The support member 20 has an attachment hole 21 and is rotatably attached to a support shaft (not shown) disposed in the second upper wall portion 17. Therefore, the auxiliary up-and-down wind direction plate 7 can rotate around the rotation shaft 20a that is the central axis of the support shaft. Further, as shown in FIG. 3B, as the rear end portion 7 d of the auxiliary vertical wind direction plate 7 approaches the rear end of the auxiliary vertical wind direction plate 7 in a cross section perpendicular to the rotation axis 20 a of the auxiliary vertical wind direction plate 7. It inclines in the direction away from the rotating shaft 20a (in FIG.3 (b), the rear-end part 7 of the auxiliary up-down wind direction board 7
d is inclined downward as it approaches the rear). In the present embodiment, the auxiliary up / down wind direction plate 7 refers to a rectangular plate-like member, and the support member 20 and a support shaft (not shown) are not included in the auxiliary up / down wind direction plate 7.

この補助上下風向板７は、図示しない駆動モータが駆動されることによって、回転軸２
０ａを中心に上側構造当たり（全閉状態）から下側構造当たり（全開状態）までの範囲を
回動できるようになっている。なお、この補助上下風向板７は、リモコンの操作によって
制御可能なものではなく、その配置位置は、空気調和機の運転状態などによって自動的に
定められる。 The auxiliary up-and-down wind direction plate 7 is driven by a driving motor (not shown) to rotate the rotating shaft 2.
A range from the upper structure (fully closed state) to the lower structure (fully opened state) can be rotated around 0a. The auxiliary up-and-down wind direction plate 7 is not controllable by operating a remote controller, and the position of the auxiliary up-and-down wind direction plate 7 is automatically determined depending on the operating state of the air conditioner.

この空気調和機では、冷房運転時において、図２に示すように、補助上下風向板７の一
部（具体的には、先端部７ｃ）が第２上壁部１７に当接するように配置される。また、補
助上下風向板７の全領域が第２上壁部１７を延長した面Ｓより第２上壁部１７側（上方）
に配置される。したがって、第１上壁部１６に沿って流れる冷気は、図２中に矢印で示す
ように、補助上下風向板７にほとんど衝突することなく、補助上下風向板７の表面７ａ側
を流れ、吹出口１４から吹き出される。一方、補助上下風向板７の先端部７ｃと第２上壁
部１７との間には隙間がほとんどないので、補助上下風向板７の裏面７ｂ側（補助上下風
向板７と第２上壁部１７との間）には、冷気がほとんど流れない。 In this air conditioner, as shown in FIG. 2, a part of the auxiliary up-and-down wind direction plate 7 (specifically, the front end portion 7 c) is disposed so as to contact the second upper wall portion 17 during the cooling operation. The Further, the entire region of the auxiliary up-and-down wind direction plate 7 is on the second upper wall portion 17 side (upward) from the surface S extending from the second upper wall portion 17.
Arranged. Accordingly, the cold air flowing along the first upper wall portion 16 flows on the surface 7a side of the auxiliary up-and-down air direction plate 7 with almost no collision with the auxiliary up-and-down air direction plate 7 as shown by arrows in FIG. It is blown out from the outlet 14. On the other hand, since there is almost no gap between the tip 7c of the auxiliary vertical wind direction plate 7 and the second upper wall portion 17, the back surface 7b side of the auxiliary vertical wind direction plate 7 (the auxiliary vertical wind direction plate 7 and the second upper wall portion). 17), almost no cold air flows.

［リモコン］
図示しないリモコンは、図１に示す室内機１および図示しない室外機と赤外線通信可能
であって、室内機１及び室外機の制御に係る各種指令をユーザの操作に応じて送信する。
このリモコンにより、ユーザは、上下風向板６の固定位置、上下風向板６のスイング動作
、冷房運転、暖房運転、除湿運転などの各運転モード、設定温度などを選択できる。 [Remote controller]
A remote controller (not shown) is capable of infrared communication with the indoor unit 1 shown in FIG. 1 and an outdoor unit (not shown), and transmits various commands related to the control of the indoor unit 1 and the outdoor unit according to user operations.
With this remote controller, the user can select a fixed position of the up-and-down air direction plate 6, a swing operation of the up-and-down air direction plate 6, each operation mode such as a cooling operation, a heating operation, and a dehumidifying operation, a set temperature, and the like.

［制御部１０］
制御部１０（制御手段）は、ＣＰＵ（Central Processing Unit）、ＲＯＭ（Read Only
Memory）、ＲＡＭ（Random Access Memory）などの複数のハードウェアから構成されて
いる。ＲＯＭには、制御部１０の動作を制御する制御プログラムなどが格納されている。
そして、この制御部１０は、図５に示すように、タイマ部２１を有し、送風ファン３、左
右風向板５、上下風向板６、補助上下風向板７、熱交温度センサ８、室内温度センサ９と
電気的に接続されている。 [Control unit 10]
The control unit 10 (control means) includes a CPU (Central Processing Unit) and a ROM (Read Only).
It is composed of a plurality of hardware such as a memory (RAM) and a random access memory (RAM). The ROM stores a control program for controlling the operation of the control unit 10.
And this control part 10 has the timer part 21, as shown in FIG. 5, the ventilation fan 3, the left-right wind direction board 5, the up-and-down wind direction board 6, the auxiliary up-and-down wind direction board 7, the heat exchanger temperature sensor 8, indoor temperature The sensor 9 is electrically connected.

この制御部１０は、リモコンの操作などを受けて、上下風向板６の固定位置、上下風向
板６のスイング動作、冷房運転、暖房運転、除湿運転などの各運転モードなどが設定され
た場合に、上下風向板６及び補助上下風向板７を所定の位置にそれぞれ配置したり、上下
風向板６及び補助上下風向板７を上下方向に揺動させたりする。 This control unit 10 receives the operation of the remote controller and the like, when the fixed position of the up-and-down air direction plate 6, the swing operation of the up-and-down air direction plate 6, each operation mode such as cooling operation, heating operation, dehumidifying operation, etc. are set. The vertical wind direction plate 6 and the auxiliary vertical wind direction plate 7 are respectively arranged at predetermined positions, and the vertical wind direction plate 6 and the auxiliary vertical wind direction plate 7 are swung in the vertical direction.

＜第１状態から第２状態への変更＞
また、この制御部１０は、冷房運転時において、補助上下風向板７の一部が第２上壁部
１７に当接した状態（第１状態）で運転しているときに、冷房運転時間及び吹出温度に基
づいて決定されたタイミングで一時的に補助上下風向板７を下方に回動させて、補助上下
風向板７が第２上壁部１７に当接しない状態（第２状態）に変更する。補助上下風向板７
が第２上壁部１７に当接しない状態に変更されると、図４に示すように、補助上下風向板
７と第２上壁部１７とに間隙が形成される。そのため、図４中に矢印で示すように、送風
ファン３からの冷気が、補助上下風向板７の表面７ａ側と、裏面７ｂ側（即ち、補助上下
風向板７と第２上壁部１７との間）の両方を流れる状態に変化する。 <Change from the first state to the second state>
Further, during the cooling operation, the control unit 10 is operated in a state where a part of the auxiliary vertical wind direction plate 7 is in contact with the second upper wall portion 17 (first state), and the cooling operation time and The auxiliary up-and-down wind direction plate 7 is temporarily rotated downward at a timing determined based on the blowing temperature, and the auxiliary up-and-down air direction plate 7 is changed to a state where the auxiliary up-and-down air direction plate 7 does not contact the second upper wall portion 17 (second state). To do. Auxiliary up and down wind direction plate 7
Is changed so as not to contact the second upper wall portion 17, a gap is formed between the auxiliary up-and-down wind direction plate 7 and the second upper wall portion 17 as shown in FIG. 4. Therefore, as indicated by the arrows in FIG. 4, the cool air from the blower fan 3 is separated from the front surface 7 a side and the back surface 7 b side (that is, the auxiliary vertical wind direction plate 7 and the second upper wall portion 17 of the auxiliary vertical wind direction plate 7. (Between) and the state of flowing.

ここで、冷房運転時間及び吹出温度に基づいて決定されたタイミングとは、具体的には
、冷房運転時において、補助上下風向板７の一部が第２上壁部１７に当接した状態となっ
てから所定時間ｔ１（例えば、２時間）が経過し、かつ、吹出口１４から吹き出される冷
気の吹出温度が所定温度以下となったときを意味する。冷房運転が長時間継続され、かつ
吹出温度が低い状態であると、補助上下風向板７の表面７ａと裏面７ｂとの温度差が大き
くなって、補助上下風向板７の裏面７ｂにおいて結露しやすい状態となる。そこで、補助
上下風向板７の裏面７ｂにおいて結露して水滴が付く前に、第１上壁部１６に沿って流れ
る冷気が補助上下風向板７の表面７ａ側と裏面７ｂ側の両方を流れる状態に変更して、補
助上下風向板７の裏面７ｂに水滴が付くことを防止している。 Here, the timing determined based on the cooling operation time and the blow-out temperature specifically refers to a state in which a part of the auxiliary vertical wind direction plate 7 is in contact with the second upper wall portion 17 during the cooling operation. It means that a predetermined time t1 (for example, 2 hours) has elapsed since the time has elapsed and the temperature of the cool air blown out from the air outlet 14 has become equal to or lower than the predetermined temperature. When the cooling operation is continued for a long time and the blowing temperature is low, the temperature difference between the front surface 7a and the back surface 7b of the auxiliary up-and-down air direction plate 7 becomes large, and condensation is likely to occur on the back surface 7b of the auxiliary up-and-down air direction plate 7. It becomes a state. Therefore, the state where the cold air flowing along the first upper wall portion 16 flows on both the front surface 7a side and the back surface 7b side of the auxiliary up-and-down wind direction plate 7 before the water droplets are formed on the back surface 7b of the auxiliary up-and-down wind direction plate 7. In order to prevent water droplets from being attached to the back surface 7b of the auxiliary up-and-down wind direction plate 7.

なお、この空気調和機では、吹出温度を検出する吹出温度センサが設けられておらず、
吹出温度を直接検出することができないので、送風ファン３のファン回転数、熱交温度セ
ンサ８で検出された室内熱交温度、及び室内温度センサ９で検出された室内温度に基づい
て吹出温度を推定することで、吹出温度が所定温度以下であるか否かを判断している。具
体的には、ファン回転数が所定回転数以下であって、室内熱交温度が所定温度以下であっ
て、かつ、室内温度が所定温度以下となった場合に、吹出温度が所定温度以下であると判
断している。 In addition, in this air conditioner, the blowing temperature sensor which detects blowing temperature is not provided,
Since the blowout temperature cannot be directly detected, the blowout temperature is determined based on the fan rotation speed of the blower fan 3, the indoor heat exchange temperature detected by the heat exchange temperature sensor 8, and the indoor temperature detected by the room temperature sensor 9. By estimating, it is judged whether the blowing temperature is below a predetermined temperature. Specifically, when the fan rotational speed is equal to or lower than the predetermined rotational speed, the indoor heat exchange temperature is equal to or lower than the predetermined temperature, and the indoor temperature is equal to or lower than the predetermined temperature, the blowing temperature is equal to or lower than the predetermined temperature. Judging that there is.

また、図４に示すように、補助上下風向板７が第２上壁部１７に当接しない状態におい
ても、補助上下風向板７の全領域が第２上壁部１７を延長した面Ｓより上方に配置される
。したがって、補助上下風向板７が第２上壁部１７に当接しない状態であっても、補助上
下風向板７は送風ファン３からの冷気の流れをほとんど遮らない。その結果、補助上下風
向板７が第２上壁部１７に当接しない状態において、送風ファン３からの冷気が補助上下
風向板７に衝突することで風量が低下することが抑制される。 Further, as shown in FIG. 4, even when the auxiliary vertical wind direction plate 7 is not in contact with the second upper wall portion 17, the entire area of the auxiliary vertical wind direction plate 7 is from the surface S extending from the second upper wall portion 17. Arranged above. Therefore, even if the auxiliary up-and-down wind direction plate 7 is not in contact with the second upper wall portion 17, the auxiliary up-and-down air direction plate 7 hardly blocks the flow of cool air from the blower fan 3. As a result, in a state where the auxiliary up-and-down wind direction plate 7 does not contact the second upper wall portion 17, it is possible to prevent the air volume from being reduced by the cold air from the blower fan 3 colliding with the auxiliary up-and-down air direction plate 7.

＜第２状態から第１状態への変更＞
また、この制御部１０は、冷房運転時において、補助上下風向板７が第２上壁部１７に
当接しない状態（第２状態）で運転しているときに、冷房運転時間に基づいて決定された
タイミングで補助上下風向板７を上方に回動させて、図２に示すように、補助上下風向板
７の一部が第２上壁部１７に当接する状態（第１状態）に再度変更する。 <Change from the second state to the first state>
Further, the control unit 10 is determined based on the cooling operation time when the auxiliary vertical wind direction plate 7 is operating in a state (second state) in which the auxiliary vertical wind direction plate 7 is not in contact with the second upper wall portion 17 during the cooling operation. The auxiliary up-and-down wind direction plate 7 is rotated upward at the timing, and as shown in FIG. 2, the auxiliary up-and-down wind direction plate 7 is again brought into a state (first state) in which the auxiliary up-and-down wind direction plate 7 comes into contact with the second upper wall portion 17. change.

具体的には、補助上下風向板７が第２上壁部１７に当接しない状態に変更されてから所
定時間ｔ２（例えば、１時間）が経過したときに、補助上下風向板７が第２上壁部１７に
当接する状態に変更する。補助上下風向板７が第２上壁部１７に当接しない状態に変更さ
れてから、冷房運転が長時間継続されると、送風ファン３からの冷気が補助上下風向板７
の表面７ａと裏面７ｂの両方を流れることで、表面７ａと裏面７ｂとの温度差が小さくな
って、補助上下風向板７の裏面７ｂにおいて結露しにくい状態となる。そこで、再度補助
上下風向板７の一部が第２上壁部１７に当接する状態に変更して、送風ファン３からの冷
気の風量を多くしている。 Specifically, when a predetermined time t2 (for example, 1 hour) elapses after the auxiliary up-and-down wind direction plate 7 is changed to a state where it does not contact the second upper wall portion 17, the auxiliary up-and-down wind direction plate 7 is It changes to the state which contact | abuts to the upper wall part 17. FIG. When the cooling operation is continued for a long time after the auxiliary up-and-down air direction plate 7 is changed to the state where it does not contact the second upper wall portion 17, the cool air from the blower fan 3 is cooled.
By flowing through both the front surface 7a and the back surface 7b, the temperature difference between the front surface 7a and the back surface 7b is reduced, and the back surface 7b of the auxiliary up-and-down airflow direction plate 7 is less likely to condense. Therefore, the amount of cool air from the blower fan 3 is increased by changing the state so that a part of the auxiliary up-and-down wind direction plate 7 abuts against the second upper wall portion 17 again.

なお、この空気調和機では、冷房運転が長時間継続して行われると、補助上下風向板７
の一部が第２上壁部１７に当接する状態（第１状態）と、補助上下風向板７が第２上壁部
１７に当接しない状態（第２状態）とを繰り返す。即ち、補助上下風向板７のスイング動
作が行われる。しかし、この「スイング動作」は、補助上下風向板７の裏面７ｂにおいて
結露して水滴が付く運転状態である第１状態と、補助上下風向板７の裏面７ｂにおいて結
露しにくい状態に戻る第２状態とを繰り返すものであるため、通常のスイング動作（静止
時間がほとんどなく、補助上下風向板７の裏面７ｂにおいて結露して水滴が付く課題が生
じないもの）とはその性質が異なる。 In this air conditioner, when the cooling operation is performed for a long time, the auxiliary up-and-down wind direction plate 7
A state in which a part of the auxiliary vertical wind direction plate 7 does not contact the second upper wall portion 17 (second state) is repeated. That is, the swing operation of the auxiliary vertical wind direction plate 7 is performed. However, this “swinging operation” is a second state in which the dew condensation occurs on the back surface 7b of the auxiliary up-and-down wind direction plate 7 and water droplets are attached, and the second state returns to a state in which dew condensation is difficult on the back surface 7b of the auxiliary up-and-down wind direction plate 7. Therefore, the nature of the swinging movement is different from that of a normal swinging movement (which has almost no rest time and does not cause a problem of condensation on the back surface 7b of the auxiliary vertical wind direction plate 7).

タイマ部２１は、補助上下風向板７の一部が第２上壁部１７に当接した状態となってか
ら所定時間ｔ１が経過したか否かを判断する際の所定時間ｔ１、及び補助上下風向板７が
第２上壁部１７に当接しない状態に変更されてから所定時間ｔ２が経過したか否かを判断
する際の所定時間ｔ２を計測するためのタイマを駆動制御する。 The timer unit 21 includes a predetermined time t1 when determining whether or not a predetermined time t1 has elapsed since a part of the auxiliary up / down wind direction plate 7 is in contact with the second upper wall portion 17, and the auxiliary up / down air direction plate 7 A timer for measuring the predetermined time t2 when determining whether or not the predetermined time t2 has elapsed since the wind direction plate 7 is changed to a state where it does not contact the second upper wall portion 17 is driven and controlled.

［フロー］
次に、図６を参照して本実施形態に係る空気調和機の動作（フロー）について説明する
。スタート時においては、冷房運転中であり、かつ補助上下風向板７の一部が第２上壁部
１７に当接した状態（第１状態）であるものとする。 [flow]
Next, the operation (flow) of the air conditioner according to the present embodiment will be described with reference to FIG. At the start, it is assumed that the cooling operation is being performed and a part of the auxiliary vertical wind direction plate 7 is in contact with the second upper wall portion 17 (first state).

まず、冷房運転中であるか否かを判断する（Ｓ１）。冷房運転中でない場合（Ｓ１：Ｎ
ｏ）、ステップＳ１を繰り返す。一方、冷房運転中である場合（Ｓ１：Ｙｅｓ）、補助上
下風向板７の一部が第２上壁部１７に当接した状態（第１状態）であるか否かを判断する
（Ｓ２）。補助上下風向板７の一部が第２上壁部１７に当接した状態である場合（Ｓ２：
Ｙｅｓ）、補助上下風向板７の一部が第２上壁部１７に当接した状態となってから所定時
間ｔ１が経過したか否かを判断する（Ｓ３）。 First, it is determined whether or not the cooling operation is being performed (S1). When not in cooling operation (S1: N
o) Repeat step S1. On the other hand, when the cooling operation is being performed (S1: Yes), it is determined whether or not a part of the auxiliary vertical wind direction plate 7 is in contact with the second upper wall portion 17 (first state) (S2). . When a part of the auxiliary vertical wind direction plate 7 is in contact with the second upper wall portion 17 (S2:
Yes), it is determined whether or not a predetermined time t1 has elapsed since a part of the auxiliary up-and-down wind direction plate 7 is in contact with the second upper wall portion 17 (S3).

そして、所定時間ｔ１が経過した場合（Ｓ３：Ｙｅｓ）、吹出口１４から吹き出される
冷気の吹出温度が所定温度以下であるか否かを判断する（Ｓ４）。なお、この空気調和機
では、上記のとおり、吹出温度を直接検出できないので、ファン回転数、室内熱交温度、
及び室内温度に基づいて吹出温度を推定することで、吹出温度が所定温度以下であるか否
かを判断している。具体的には、ステップＳ４では、ファン回転数が所定回転数以下であ
って、室内熱交温度が所定温度以下であって、かつ、室内温度が所定温度以下となったか
否かを判断している。 And when predetermined time t1 passes (S3: Yes), it is judged whether the blowing temperature of the cold air blown from the blower outlet 14 is below predetermined temperature (S4). In this air conditioner, as described above, since the blowout temperature cannot be directly detected, the fan rotation speed, the indoor heat exchange temperature,
And it is judged whether the blowing temperature is below predetermined temperature by estimating blowing temperature based on room temperature. Specifically, in step S4, it is determined whether or not the fan speed is equal to or lower than a predetermined speed, the indoor heat exchange temperature is equal to or lower than the predetermined temperature, and the indoor temperature is equal to or lower than the predetermined temperature. Yes.

ステップＳ４において、吹出温度が所定温度以下である場合（Ｓ４：Ｙｅｓ）、制御部
１０は、一時的に補助上下風向板７を下方に回動させて、補助上下風向板７が第２上壁部
１７に当接しない状態（第２状態）に変更する（Ｓ５）。一方、所定時間ｔ１が経過して
いない場合や（Ｓ３：Ｎｏ）、吹出温度が所定温度より高い場合（Ｓ４：Ｎｏ）、ステッ
プＳ１に戻る。 In step S4, when the blowing temperature is equal to or lower than the predetermined temperature (S4: Yes), the control unit 10 temporarily rotates the auxiliary vertical wind direction plate 7 downward, and the auxiliary vertical wind direction plate 7 is the second upper wall. It changes to the state (2nd state) which does not contact | abut the part 17 (S5). On the other hand, when the predetermined time t1 has not elapsed (S3: No), or when the blowing temperature is higher than the predetermined temperature (S4: No), the process returns to step S1.

また、ステップＳ２において、補助上下風向板７が第２上壁部１７に当接しない状態（
第２状態）である場合（Ｓ２：Ｎｏ）、補助上下風向板７が第２上壁部１７に当接しない
状態となってから所定時間ｔ２が経過したか否かを判断する（Ｓ６）。所定時間ｔ２が経
過した場合（Ｓ６：Ｙｅｓ）、制御部１０は、補助上下風向板７を上方に回動させて、補
助上下風向板７が第２上壁部１７に当接する状態（第１状態）に変更する（Ｓ７）。一方
、所定時間ｔ２が経過していない場合（Ｓ６：Ｎｏ）、ステップＳ１に戻る。 In step S2, the auxiliary up-and-down wind direction plate 7 is not in contact with the second upper wall portion 17 (
In the second state) (S2: No), it is determined whether or not a predetermined time t2 has elapsed since the auxiliary up-and-down wind direction plate 7 is not in contact with the second upper wall portion 17 (S6). When the predetermined time t2 has elapsed (S6: Yes), the control unit 10 rotates the auxiliary up-and-down air direction plate 7 upward so that the auxiliary up-and-down air direction plate 7 contacts the second upper wall portion 17 (first State) (S7). On the other hand, when the predetermined time t2 has not elapsed (S6: No), the process returns to step S1.

［本実施形態の空気調和機の特徴］
本実施形態の空気調和機には、以下の特徴がある。 [Features of the air conditioner of this embodiment]
The air conditioner of this embodiment has the following characteristics.

この空気調和機では、図２に示すように、補助上下風向板７の一部が第２上壁部１７に
当接した状態（第１状態）、すなわち補助上下風向板７の裏面７ｂ側（補助上下風向板７
と第２上壁部１７との間）を冷気がほとんど流れない状態で冷房運転が行われているとき
に、図４に示すように、一時的に補助上下風向板７が第２上壁部１７に当接しない状態（
第２状態）、すなわち補助上下風向板７の裏面７ｂ側（補助上下風向板７と第２上壁部１
７との間）を冷気が流れる状態に変更されるので、補助上下風向板７の裏面７ｂ（上面）
において結露して水滴が付くことを防止できる。 In this air conditioner, as shown in FIG. 2, a state in which a part of the auxiliary vertical wind direction plate 7 is in contact with the second upper wall portion 17 (first state), that is, the back surface 7b side of the auxiliary vertical wind direction plate 7 ( Auxiliary up and down wind direction plate 7
4 and the second upper wall portion 17), when the cooling operation is performed in a state in which the cool air hardly flows, the auxiliary up-and-down wind direction plate 7 temporarily becomes the second upper wall portion as shown in FIG. 17 is not in contact with (
2nd state), that is, the back surface 7b side of the auxiliary vertical wind direction plate 7 (the auxiliary vertical wind direction plate 7 and the second upper wall portion 1).
7) is changed to a state in which cold air flows, so that the back surface 7b (upper surface) of the auxiliary up-and-down wind direction plate 7
In this case, it is possible to prevent water droplets from being condensed due to dew condensation.

また、この空気調和機では、冷房運転時間及び吹出温度に基づいて決定されたタイミン
グで、補助上下風向板７の裏面７ｂ側（補助上下風向板７と第２上壁部１７との間）を冷
気が流れる状態に変更されるので、冷房運転が長時間継続され、かつ吹出温度が低い状態
、すなわち補助上下風向板７の裏面７ｂにおいて結露して水滴が付く運転状態において、
補助上下風向板７の裏面７ｂ側を冷気が流れる状態に変更できる。 Moreover, in this air conditioner, the back surface 7b side (between the auxiliary up-and-down wind direction plate 7 and the 2nd upper wall part 17) of the auxiliary up-and-down air direction plate 7 is the timing determined based on the cooling operation time and the blowing temperature. Since it is changed to a state where the cold air flows, in the state where the cooling operation is continued for a long time and the blowing temperature is low, that is, in the operation state in which condensation occurs on the back surface 7b of the auxiliary up-and-down wind direction plate 7 and water droplets are attached.
The back surface 7b side of the auxiliary up-and-down wind direction plate 7 can be changed to a state in which cold air flows.

また、この空気調和機では、空気流路の上壁部１５が、前方に向かって下向きに傾斜し
た第１上壁部１６と、第１上壁部１６の前方において空気流路が広がるように配置された
第２上壁部１７とを有する場合において、補助上下風向板７の裏面７ｂ（上面）において
結露して水滴が付くことを防止できる。また、補助上下風向板７が第１上壁部１６を延長
した面Ｓより第２上壁部１７側に配置されるので、補助上下風向板７の一部が第２上壁部
１７に当接した状態で冷房運転が行われている場合において、補助上下風向板７は送風フ
ァン３からの冷気の流れ方向に配置されない。したがって、送風ファン３からの冷気が補
助上下風向板７に衝突することで風量が低下することを防止できる。 Further, in this air conditioner, the upper wall portion 15 of the air flow path is inclined such that the first upper wall section 16 is inclined downward toward the front, and the air flow path is widened in front of the first upper wall section 16. In the case of having the second upper wall portion 17 arranged, it is possible to prevent condensation on the back surface 7b (upper surface) of the auxiliary up-and-down wind direction plate 7 and water droplets. Further, since the auxiliary vertical wind direction plate 7 is disposed on the second upper wall portion 17 side from the surface S extending the first upper wall portion 16, a part of the auxiliary vertical wind direction plate 7 contacts the second upper wall portion 17. In the case where the cooling operation is performed in contact, the auxiliary up / down airflow direction plate 7 is not arranged in the flow direction of the cool air from the blower fan 3. Therefore, it is possible to prevent the air volume from being reduced by the cold air from the blower fan 3 colliding with the auxiliary up-and-down wind direction plate 7.

また、この空気調和機では、ファン回転数、室内熱交温度、及び室内温度に基づいて吹
出温度を推定して、推定した吹出温度に基づいて補助上下風向板７を制御することができ
るので、吹出温度センサ等を設けるなどして、吹出温度を直接検出する必要がない。 Moreover, in this air conditioner, since the blowing temperature can be estimated based on the fan rotational speed, the indoor heat exchange temperature, and the indoor temperature, the auxiliary up-and-down wind direction plate 7 can be controlled based on the estimated blowing temperature. There is no need to directly detect the blowing temperature by providing a blowing temperature sensor or the like.

また、この空気調和機では、冷房運転時において、補助上下風向板７が第２上壁部１７
に当接しない状態（第２状態）で運転しているときに、冷房運転時間に基づいて決定され
たタイミングで、再度補助上下風向板７が第２上壁部１７に当接する状態（第１状態）に
変更される。したがって、補助上下風向板７の裏面７ｂ側を冷気が流れる状態に変更され
ることにより、補助上下風向板７の裏面７ｂにおいて結露しにくい状態となったときに、
補助上下風向板７の裏面７ｂ側を冷気が流れない状態に変更できるので、補助上下風向板
７の裏面７ｂにおいて結露しにくい状態において、送風ファン３からの冷気が補助上下風
向板７に衝突することで風量が低下することを防止できる。 In this air conditioner, the auxiliary up-and-down wind direction plate 7 is provided with the second upper wall portion 17 during the cooling operation.
When the vehicle is operated in a state where it does not come into contact (second state), the auxiliary up-and-down wind direction plate 7 comes into contact with the second upper wall portion 17 again at the timing determined based on the cooling operation time (first state). Status). Therefore, when the back surface 7b side of the auxiliary up-and-down wind direction plate 7 is changed to a state in which the cold air flows, it becomes difficult to condense on the back surface 7b of the auxiliary up-and-down wind direction plate 7,
Since the back surface 7b side of the auxiliary up-and-down wind direction plate 7 can be changed to a state in which the cool air does not flow, the cool air from the blower fan 3 collides with the auxiliary up-and-down air direction plate 7 in a state where condensation does not easily occur on the back surface 7b of the auxiliary up-and-down wind direction plate 7. This can prevent the air volume from decreasing.

以上、本発明の実施の形態について説明したが、本発明の具体的な構成は、上記実施形
態に限定されるものでないと考えられるべきである。本発明の範囲は、上記実施形態の説
明だけではなく特許請求の範囲によって示され、さらに特許請求の範囲と均等の意味およ
び範囲内でのすべての変更が含まれる。 As mentioned above, although embodiment of this invention was described, it should be thought that the specific structure of this invention is not limited to the said embodiment. The scope of the present invention is shown not only by the description of the above-described embodiment but also by the scope of claims for patent, and further includes meanings equivalent to the scope of claims for patent and all modifications within the scope.

［変形例］
本実施形態の空気調和機では、図２に示すように、補助上下風向板７が第２上壁部１７
の近傍に配置されているが、補助上下風向板７は、第１上壁部１６の近傍に配置されてい
てもよい。 [Modification]
In the air conditioner of the present embodiment, as shown in FIG. 2, the auxiliary vertical wind direction plate 7 is provided with the second upper wall portion 17.
However, the auxiliary up-and-down wind direction plate 7 may be disposed in the vicinity of the first upper wall portion 16.

また、本実施形態の空気調和機では、図２に示すように、空気流路の上壁部１５が、前
方に向かって下向きに傾斜した第１上壁部１６と、第１上壁部１６の前方において空気流
路が広がるように配置された第２上壁部１７とを有しているが、空気流路の上壁部１５の
構成は上記に限られない。例えば、空気流路の上壁部１５が第１上壁部１６のみから構成
されていてもよい。 Further, in the air conditioner of the present embodiment, as shown in FIG. 2, the upper wall portion 15 of the air flow path is inclined to the front, the first upper wall portion 16 and the first upper wall portion 16. The second upper wall portion 17 is disposed so that the air flow path is widened in front of the air flow path, but the configuration of the upper wall portion 15 of the air flow path is not limited to the above. For example, the upper wall portion 15 of the air flow path may be composed of only the first upper wall portion 16.

また、本実施形態の空気調和機では、図２に示すように、補助上下風向板７の先端部７
ｃが、空気流路の上壁部１５に当接しているが、上壁部１５に当接する部分は先端部７ｃ
に限られない。例えば、補助上下風向板７の裏面７ｂ略全体が上壁部１５に当接していて
もよい。そうすることで、補助上下風向板７が上壁部１５に対してより平行になり、送風
ファン３からの冷気が補助上下風向板７に衝突して風量が低下することをさらに防止でき
る。 Moreover, in the air conditioner of this embodiment, as shown in FIG. 2, the front-end | tip part 7 of the auxiliary up-and-down wind direction board 7 is shown.
c is in contact with the upper wall portion 15 of the air flow path, but the portion in contact with the upper wall portion 15 is the tip portion 7c.
Not limited to. For example, the substantially entire back surface 7 b of the auxiliary up-and-down wind direction plate 7 may be in contact with the upper wall portion 15. By doing so, the auxiliary up-and-down wind direction plate 7 becomes more parallel to the upper wall portion 15, and it is possible to further prevent the cool air from the blower fan 3 from colliding with the auxiliary up-and-down air direction plate 7 and reducing the air volume.

また、本実施形態の空気調和機では、補助上下風向板７の裏面７ｂ側を冷気が流れる状
態に変更するタイミングを、冷房運転時間及び吹出温度に基づいて決定したが、冷房運転
時間及び吹出温度のどちらか一方に基づいて決定してもよいし、その他の所定の方法（例
えば、リモコン操作）に基づいて決定してもよい。 Moreover, in the air conditioner of this embodiment, although the timing which changes the back surface 7b side of the auxiliary | assistant vertical wind direction board 7 to the state where cold air flows was determined based on the cooling operation time and the blowing temperature, the cooling operation time and the blowing temperature It may be determined based on either one of them, or may be determined based on another predetermined method (for example, remote control operation).

また、本実施形態の空気調和機では、冷房運転時間及び吹出温度に基づいて決定された
タイミングとは、具体的には、補助上下風向板７の一部が第２上壁部１７に当接した状態
となってから所定時間ｔ１が経過し、かつ吹出温度が所定温度以下となったときを意味す
るが、冷房運転時間及び吹出温度に基づいて決定されたタイミングとは、上記に限られる
ものではない。例えば、上記のタイミングとは、冷房運転時において、吹出温度が所定温
度以下である状態が所定時間継続したときであってもよい。 Further, in the air conditioner of the present embodiment, the timing determined based on the cooling operation time and the blowing temperature is specifically that a part of the auxiliary up-and-down wind direction plate 7 contacts the second upper wall portion 17. It means that the predetermined time t1 has elapsed since the start of the operation and the blowing temperature is equal to or lower than the predetermined temperature, but the timing determined based on the cooling operation time and the blowing temperature is limited to the above. is not. For example, the above timing may be when the state where the blowing temperature is equal to or lower than a predetermined temperature continues for a predetermined time during the cooling operation.

また、本実施形態の空気調和機では、吹出温度を直接検出できないので、ファン回転数
、室内熱交温度、及び室内温度に基づいて吹出温度を推定することで、吹出温度が所定温
度以下であるか否かを判断したが、吹出温度センサを設けて吹出温度を直接検出してもよ
い。 Moreover, in the air conditioner of this embodiment, since the blowing temperature cannot be directly detected, the blowing temperature is not more than a predetermined temperature by estimating the blowing temperature based on the fan rotation speed, the indoor heat exchange temperature, and the room temperature. However, it may be possible to directly detect the blowing temperature by providing a blowing temperature sensor.

また、本実施形態の空気調和機では、補助上下風向板７の裏面７ｂ側を冷気が流れる状
態に変更された後で、再度補助上下風向板７の裏面７ｂ側を冷気が流れない状態に変更す
るタイミングを、冷房運転時間に基づいて決定したが、吹出温度に基づいて決定してもよ
いし、冷房運転時間及び吹出温度に基づいて決定してもよいし、その他の所定の方法（例
えば、リモコン操作）に基づいて決定してもよい。 Moreover, in the air conditioner of this embodiment, after the back surface 7b side of the auxiliary up-and-down wind direction plate 7 is changed to the state where the cold air flows, the back surface 7b side of the auxiliary up-and-down air direction plate 7 is changed again to the state where the cold air does not flow. The timing to perform is determined based on the cooling operation time, but may be determined based on the blowing temperature, may be determined based on the cooling operation time and the blowing temperature, or other predetermined methods (for example, It may be determined based on remote control operation.

また、本実施形態の空気調和機では、図４に示すように、補助上下風向板７が第２上壁
部１７に当接しない状態（第２状態）において、補助上下風向板７の全領域が第２上壁部
１７を延長した面Ｓより上方に配置されるが、補助上下風向板７が第２上壁部１７を延長
した面Ｓ上又は面Ｓより下方に配置されてもよい。 Further, in the air conditioner of the present embodiment, as shown in FIG. 4, the entire region of the auxiliary vertical wind direction plate 7 in a state where the auxiliary vertical wind direction plate 7 is not in contact with the second upper wall portion 17 (second state). However, the auxiliary up-and-down wind direction plate 7 may be disposed on the surface S extending from the second upper wall portion 17 or below the surface S.

また、本実施形態の空気調和機では、冷房運転時において、補助上下風向板７が上壁部
１５に当接しない状態（第２状態）に変更された場合を除いて、補助上下風向板７の一部
が上壁部１５に当接するよう配置されることとした。しかし、この空気調和機は、補助上
下風向板７を上壁部１５に当接しない所定の位置に固定する運転モードを備えていてもよ
いし、また、補助上下風向板７を上下方向に揺動させる通常のスイング動作を行う運転モ
ードを備えていてもよい。そして、これらの運転モードが実行されている場合には、図６
に示す本実施形態の動作（フロー）が実行されないようにしてもよい。 Further, in the air conditioner of the present embodiment, the auxiliary up-and-down air direction plate 7 is changed except for the case where the auxiliary up-and-down air direction plate 7 is changed to a state in which the auxiliary up-and-down air direction plate 7 does not contact the upper wall portion 15 during the cooling operation (second state). It is supposed that a part of is arranged so as to contact the upper wall portion 15. However, this air conditioner may have an operation mode in which the auxiliary up-and-down wind direction plate 7 is fixed at a predetermined position where it does not contact the upper wall portion 15, and the auxiliary up-and-down air direction plate 7 is swung in the up-and-down direction. You may provide the operation mode which performs the normal swing operation | movement to move. When these operation modes are executed, FIG.
The operation (flow) of the present embodiment shown in FIG.

また、本実施形態の空気調和機では、左右風向板５を備えているが、左右風向板５はな
くてもよい。 Moreover, in the air conditioner of this embodiment, although the left-right wind direction board 5 is provided, the left-right wind direction board 5 does not need to be.

また、本実施形態の空気調和機では、補助上下風向板７は、リモコン操作によって制御
不可としたが、リモコン操作によって制御可能であってもよい。 Moreover, in the air conditioner of this embodiment, although the auxiliary up-and-down wind direction board 7 was made uncontrollable by remote control operation, it may be controllable by remote control operation.

また、空気調和機の除湿運転時に、冷房運転時と同様の動作が行われるようにしてもよ
い。したがって、本発明における「冷房運転時」には、「除湿運転時」が含まれる。 Further, during the dehumidifying operation of the air conditioner, the same operation as that during the cooling operation may be performed. Therefore, “at the time of cooling operation” in the present invention includes “at the time of dehumidifying operation”.

本発明を利用すれば、冷房運転時において、補助上下風向板の上面において結露して水
滴が付くことを防止できる。 By using the present invention, it is possible to prevent condensation from forming on the upper surface of the auxiliary up-and-down wind direction plate during the cooling operation.

１室内機
３送風ファン
４室内熱交換器
６上下風向板
７補助上下風向板
１３吸込口
１４吹出口
１５上壁部
１６第１上壁部
１７第２上壁部
DESCRIPTION OF SYMBOLS 1 Indoor unit 3 Blower fan 4 Indoor heat exchanger 6 Vertical wind direction board 7 Auxiliary vertical wind direction board 13 Suction inlet 14 Outlet 15 Upper wall part 16 1st upper wall part 17 2nd upper wall part

Claims

吸込口から吹出口に至る空気流路に配置された送風ファンと、
前記吹出口の近傍において回動可能に支持された上下風向板と、
前記上下風向板の上方において回動可能に支持された補助上下風向板と、
前記補助上下風向板を制御する制御手段とを備え、
前記制御手段は、
冷房運転時において、前記補助上下風向板の一部が前記空気流路の上壁部に当接した第
１状態で運転しているときに、所定の第１タイミングで一時的に前記補助上下風向板を回
動させて、前記補助上下風向板が前記空気流路の上壁部に当接しない第２状態に変更した
後、所定の第２タイミングで自動的に前記補助上下風向板を回動させて、前記第１状態に
戻すことを特徴とする空気調和機。 A blower fan arranged in an air flow path from the suction port to the blowout port;
An up-and-down wind direction plate supported rotatably in the vicinity of the air outlet;
An auxiliary up-down wind direction plate supported rotatably above the up-down wind direction plate;
Control means for controlling the auxiliary up-and-down wind direction plate,
The control means includes
During cooling operation, when operating in the first state where a part of the auxiliary up-down wind direction plate is in contact with the upper wall portion of the air flow path, the auxiliary up-down wind direction is temporarily at a predetermined first timing. The auxiliary vertical wind direction plate is automatically rotated at a predetermined second timing after the plate is rotated to change the second state in which the auxiliary vertical wind direction plate does not contact the upper wall of the air flow path. Then, the air conditioner is returned to the first state.

冷房運転時において、前記補助上下風向板が前記第１状態にある時間が、前記補助上下
風向板が前記第２状態にある時間より長いことを特徴とする請求項１に記載の空気調和機
。 2. The air conditioner according to claim 1, wherein during the cooling operation, the time during which the auxiliary up-down wind direction plate is in the first state is longer than the time during which the auxiliary up-down wind direction plate is in the second state.

前記空気流路の上壁部が、前方に向かって下向きに傾斜した第１上壁部と、前記第１上
壁部の前方において前記空気流路が広がるように配置された第２上壁部とを有し、
前記制御手段は、
冷房運転時において、前記補助上下風向板の一部が前記第２上壁部に当接した第１状態
で運転しているときに、所定のタイミングで一時的に前記補助上下風向板を回動させて、
前記補助上下風向板が前記第２上壁部に当接しない第２状態に変更し、
前記第１状態および前記第２状態にある前記補助上下風向板は、冷房運転時、前記第１
上壁部を延長した面より前記第２上壁部側に配置されることを特徴とする請求項１または
２に記載の空気調和機。 The upper wall portion of the air flow path is inclined to the front and the first upper wall portion is inclined downward, and the second upper wall portion is disposed so that the air flow path is widened in front of the first upper wall portion. And
The control means includes
During cooling operation, when the auxiliary vertical wind direction plate is operating in the first state where a part of the auxiliary vertical wind direction plate is in contact with the second upper wall portion, the auxiliary vertical wind direction plate is temporarily rotated at a predetermined timing. Let me
The auxiliary up-and-down wind direction plate is changed to a second state in which it does not contact the second upper wall portion,
The auxiliary up-and-down wind direction plates in the first state and the second state are the first and second wind direction plates during the cooling operation .
3. The air conditioner according to claim 1, wherein the air conditioner is disposed closer to the second upper wall than a surface obtained by extending the upper wall.

前記制御手段は、冷房運転時間に基づいて決定されたタイミングで、前記第１状態から
前記第２状態に変更することを請求項１〜３のいずれか１項に記載の空気調和機。 The air conditioner according to any one of claims 1 to 3, wherein the control means changes from the first state to the second state at a timing determined based on a cooling operation time.

前記制御手段は、吹出温度に基づいて決定されたタイミングで、前記第１状態から前記
第２状態に変更することを特徴とする請求項１〜４のいずれか１項に記載の空気調和機。 The air conditioner according to any one of claims 1 to 4, wherein the control means changes from the first state to the second state at a timing determined based on the blowing temperature.

前記空気流路に配置された室内熱交換器を備え、
前記制御手段は、ファン回転数、室内熱交温度及び室内温度に基づいて決定されたタイ
ミングで、前記第１状態から前記第２状態に変更することを特徴とする請求項１〜５のい
ずれか１項に記載の空気調和機。 An indoor heat exchanger disposed in the air flow path,
The said control means changes from the said 1st state to the said 2nd state at the timing determined based on fan rotation speed, indoor heat exchanger temperature, and room temperature, The any one of Claims 1-5 characterized by the above-mentioned. Item 1. An air conditioner according to item 1.