JP5678938B2 - Air conditioner - Google Patents

Description

  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.

  The conventional air conditioner includes a blower fan arranged in an air flow path from the suction port to the blowout port, a vertical wind direction plate arranged near the blowout port, and an auxiliary vertical plate arranged above the vertical wind direction plate. Some are equipped with wind direction plates. 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.

JP 2009-79846 A

  By the way, in the conventional air conditioner, during the cooling operation, the up-and-down air direction plates may be arranged substantially horizontally, and the air direction of the cool air blown from the outlet may be set in the substantially horizontal direction. At this time, the cold air flowing on the upper surface side of the vertical wind direction plate flows and blows out along the upper wall portion inclined downward. However, since the auxiliary up-and-down wind direction plate is disposed in the vicinity of the upper wall portion inclined downward, the cold air flowing along the upper wall portion collides with the auxiliary up-and-down air direction plate and the air volume is reduced. Further, in a conventional air conditioner, there is a case where the vertical wind direction plate is controlled to swing in the vertical direction during the cooling operation, and in this case as well, the cold air flowing along the upper wall portion inclined downward is similarly applied. However, it collides with an auxiliary up-and-down wind direction board, and an air volume will fall.

  Therefore, in the conventional air conditioner, when the air flow path is widened in front of the upper wall portion that is inclined downward toward the front, and the auxiliary up-down wind direction plate is disposed in the widened portion, It has been found that it is possible to prevent the cool air flowing along the downwardly inclined upper wall portion from colliding with the auxiliary vertical wind direction plate and reducing the air volume. However, in this case, since the cool air hardly flows on the upper surface side of the auxiliary up-and-down wind direction plate, there is a problem that condensation occurs on the upper surface of the auxiliary up-and-down air direction plate and water droplets are attached.

  Accordingly, 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 airflow direction plate and the formation of water droplets during cooling operation.

An air conditioner according to a first aspect of the invention is an air conditioner that performs a cooling operation, and is capable of rotating in the vicinity of a blower fan disposed in an air flow path from a suction port to a blowout port, and the blowout port. An up-and-down wind direction plate supported along the longitudinal direction of the air outlet, and supported so as to be rotatable around a rotation axis near the upper wall portion of the air flow path above the upper and lower air direction plate; An auxiliary up-and-down wind direction plate extending along the longitudinal direction of the air flow path, wherein the upper wall portion of the air flow path is inclined downward toward the front, and the front of the first upper wall portion A second upper wall portion arranged so that the air flow path is widened, and the auxiliary up-and-down wind direction plate is closer to the second upper wall portion side than the surface extending the first upper wall portion during cooling operation. while being arranged, during cooling operation, and cold air is auxiliary flapping Is configured to flow between the serial second upper wall portion, said rotary shaft, characterized in that behind the said auxiliary flapping.

  In this air conditioner, 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 during the cooling operation, so the auxiliary up-and-down air direction plate is in the flow direction of the cool air from the blower fan. Not placed in. Therefore, it is possible to prevent the air volume from being reduced due to the cold air from the blower fan colliding with the auxiliary vertical wind direction plate. Further, since the rotation axis of the auxiliary vertical wind direction plate is located behind the auxiliary vertical wind direction plate, a gap between the auxiliary vertical wind direction plate and the rotation shaft is increased. Therefore, even when the auxiliary up-and-down wind direction plate is arranged on the second upper wall side from the surface extending the first upper wall during cooling operation, and is not arranged in the flow direction of the cool air from the blower fan, Cold air tends to flow on the top side. Therefore, it is possible to prevent condensation from forming on the upper surface of the auxiliary up-down wind direction plate during the cooling operation.

  In the air conditioner pertaining to the second invention, in the air conditioner pertaining to the first invention, the rear end of the auxiliary up-and-down wind direction plate is the rear end of the auxiliary up-and-down wind direction plate in a cross section perpendicular to the rotation axis. Inclination in a direction away from the rotation axis as approaching.

  In this air conditioner, since the cool air from the blower fan flows along the inclined surface of the rear end portion of the auxiliary up-and-down air direction plate, the cool air easily flows on the upper surface side of the auxiliary up-and-down air direction plate.

  The air conditioner according to a third aspect of the invention is characterized in that, in the air conditioner according to the first or second aspect of the invention, the second upper wall portion is inclined substantially upward or horizontally toward the front.

  In this air conditioner, since the second upper wall portion is inclined substantially horizontally or upwards upward, the auxiliary up-and-down air direction plate can be easily disposed at a position where it is not disposed in the flow direction of the cool air from the blower fan. .

  As described above, according to the present invention, the following effects can be obtained.

  In the first aspect of the invention, since the auxiliary up-and-down air direction plate is arranged on the second upper wall side from the surface extending from the first upper wall during cooling operation, the auxiliary up-and-down air direction plate is in the flow direction of the cool air from the blower fan. Not placed in. Therefore, it is possible to prevent the air volume from being reduced due to the cold air from the blower fan colliding with the auxiliary vertical wind direction plate. Further, since the rotation axis of the auxiliary vertical wind direction plate is located behind the auxiliary vertical wind direction plate, a gap between the auxiliary vertical wind direction plate and the rotation shaft is increased. Therefore, even when the auxiliary up-and-down wind direction plate is arranged on the second upper wall side from the surface extending the first upper wall during cooling operation, and is not arranged in the flow direction of the cool air from the blower fan, Cold air tends to flow on the top side. Therefore, it is possible to prevent condensation from forming on the upper surface of the auxiliary up-down wind direction plate during the cooling operation.

  In the second aspect of the invention, since the cool air from the blower fan flows along the inclined surface of the rear end portion of the auxiliary up-and-down wind direction plate, the cool air easily flows on the upper surface side of the auxiliary up-and-down wind direction plate.

  In the third invention, since the second upper wall portion is inclined substantially horizontally or upwards upward, the auxiliary vertical wind direction plate can be easily arranged at a position where it is not arranged in the flow direction of the cool air from the blower fan. .

1 is an external view of an air conditioner according to an embodiment of the present invention. It is sectional drawing of the air conditioner of FIG. It is drawing explaining the structure of an auxiliary | assistant vertical wind direction board. It is sectional drawing of the air conditioner at the time of the driving | operation in horizontal blowing mode. It is sectional drawing of the air conditioner at the time of swing operation | movement of an up-and-down wind direction board. It is a functional block diagram of the air conditioner shown in FIG.

  Hereinafter, an air conditioner according to an embodiment of the present invention will be described with reference to the drawings.

[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 referred to as “rear”. Further, the left-right direction shown in FIG. 1 is simply referred to as “left-right direction”.

[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, a heat exchanger 4, a left / right wind direction plate 5, an up / down wind direction plate 6, an auxiliary up / down wind direction plate 7, and the like. ing.

  The casing 2 includes a substantially rectangular parallelepiped grill 11 and a front panel 12 that covers the front surface of the grill 11. 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. During air conditioning operation (cooling operation or heating operation), the air sucked from the suction port 13 is exchanged by driving the blower fan 3 disposed in the air flow path from the suction port 13 to the blower outlet 14. After being heated or cooled in the vessel 4, the air is blown out into the room from the air outlet 14.

<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. The first upper wall portion 16 and the second upper wall portion 17 arranged so that the air flow path is widened in front of the first upper wall portion 16 are formed. Specifically, the second upper wall portion 17 extends substantially horizontally toward the front, and is disposed so as to spread upward by 30 ° with respect to the surface S extending the first upper wall portion 16. . 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.

<Up-down wind direction plate 6>
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 19a. This up-and-down air direction board 6 is extended along the longitudinal direction (left-right direction) of the blower outlet 14, changes the air direction of the air which blows off from the blower outlet 14 about the up-and-down direction, and opens and closes the blower outlet 14. In the following, the lower side of the two surfaces of the vertical wind direction plate 6 is referred to as the front surface 6s, and the upper side is referred to as the back surface 6b.

  The up-and-down airflow direction plate 6 can rotate in a range from the upper structure contact (fully closed state) to the lower structure contact (fully open state) around the rotation shaft 19a by driving a drive motor (not shown). It has become. 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). . Moreover, the up-and-down wind direction board 6 can be fixed to a desired position in the range from the upper limit position to the lower limit position by operating the remote controller.

<Auxiliary vertical wind direction plate 7>
As shown in FIG. 2, the auxiliary up-and-down air direction plate 7 is disposed in the vicinity of the second upper wall portion 17 above the up-and-down air direction plate 6 and is supported by the support member 20 so as to be rotatable around the rotation shaft 20 a. Yes. The auxiliary up-and-down air direction plate 7 extends along the longitudinal direction (left-right direction) of the air outlet 14 and changes the air direction of the air blown out from the air outlet 14 in the vertical direction together with the up-and-down air direction plate 6.

  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 thereof. 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.

  The auxiliary up-and-down airflow direction plate 7 can rotate in a range from the upper structure contact (fully closed state) to the lower structure contact (fully open state) around the rotation shaft 20a by driving a drive motor (not shown). It has become. 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 1 or the like.

  In the air conditioner 1, the auxiliary up-and-down 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 during the cooling operation. Therefore, as shown in FIG. 2, the auxiliary up-and-down wind direction plate 7 is disposed above the surface S extending the first upper wall portion 16, and the rotation shaft 20 a is located behind the auxiliary up-and-down air direction plate 7. Further, as shown in FIG. 3B, the rear end portion 7 a of the back surface of the auxiliary vertical wind direction plate 7 is located at 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. As it approaches, it is inclined in a direction away from the rotating shaft 20a (in FIG. 3B, the rear end portion 7a of the back surface of the auxiliary vertical wind direction plate 7 is inclined downward as it approaches the rear).

[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 control, the user can fix the vertical wind direction plate 6, “swing operation of the vertical wind direction plate 6”, “operation in the horizontal blowing mode (operation in the predetermined wind direction fixed mode)”, cooling operation, heating operation, Each operation mode such as dehumidifying operation, set temperature, etc. can be selected.

  Here, “operation in the horizontal blow mode” means that, during the cooling operation, the vertical wind direction plate 6 and the auxiliary vertical wind direction plate 7 are fixed in a substantially horizontal direction as shown in FIG. The driving that blows out cold air in the direction. Hereinafter, the positions of the vertical wind direction plate 6 and the auxiliary vertical wind direction plate 7 when the vertical wind direction plate 6 and the auxiliary vertical wind direction plate 7 are fixed in a substantially horizontal direction are referred to as horizontal positions. And when the auxiliary up-and-down wind direction board 7 is arrange | positioned in a horizontal position, the auxiliary up-and-down air direction board 7 is arrange | positioned from the surface S which extended the 1st upper wall part 16 to the 2nd upper wall part 17 side. Therefore, the auxiliary up-and-down wind direction plate 7 is not disposed in the flow direction of the cool air from the blower fan 3 (the flow direction when the cool air from the blower fan 3 flows along the first upper wall portion 16). Further, the auxiliary up-and-down wind direction plate 7 is disposed at a position where a gap is formed between the back surface (upper surface) and the second upper wall portion 17. Therefore, when “operation in the horizontal blow mode” during the cooling operation is set, the cool air from the blower fan 3 flows between the auxiliary vertical wind direction plate 7 and the second upper wall portion 17.

  Further, the “swinging motion of the vertical wind direction plate 6” means that the vertical wind direction plate 6 swings in the vertical direction within a predetermined range (range from the upper limit position to the lower limit position) as shown in FIG. The operation which changes the direction which blows off the cold air from the blower outlet 14 to an up-down direction is said. At this time, the auxiliary up / down wind direction plate 7 is fixed at a predetermined position (for example, an upper limit position). When the auxiliary vertical wind direction plate 7 is disposed at the upper limit position, 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. Therefore, the auxiliary up-and-down wind direction plate 7 is not disposed in the flow direction of the cool air from the blower fan 3 (the flow direction when the cool air from the blower fan 3 flows along the first upper wall portion 16). Further, the auxiliary up-and-down wind direction plate 7 is disposed at a position where a gap is formed between the back surface (upper surface) and the second upper wall portion 17. Therefore, when “operation in the horizontal blow mode” during the cooling operation is set, the cool air from the blower fan 3 flows between the auxiliary vertical wind direction plate 7 and the second upper wall portion 17.

[Control unit 8]
The control unit 8 (control means) includes a plurality of hardware such as a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory). The ROM stores a control program for controlling the operation of the control unit 8. And this control part 8 is electrically connected with the ventilation fan 3, the left-right wind direction board 5, the up-and-down wind direction board 6, and the auxiliary up-and-down wind direction board 7, as shown in FIG.

  The control unit 8 arranges the vertical wind direction plate 6 and the auxiliary vertical wind direction plate 7 in the horizontal position when the operation in the horizontal blowing mode is set in response to the operation of the remote controller during the cooling operation. Further, the control unit 8 moves the vertical wind direction plate 6 within a predetermined range (from the upper limit position to the lower limit position) when the swing operation of the vertical wind direction plate 6 is set in response to the operation of the remote controller during the cooling operation. Range) and the auxiliary vertical wind direction plate 7 is disposed at the upper limit position.

  By the way, in the air conditioner 1, when the operation is stopped, the vertical wind direction plate 6 is disposed at a fully closed position that closes the outlet 14, and the auxiliary vertical wind direction plate 7 has a front end that contacts the second upper wall portion 17. It is placed in the fully closed position where it touches. Therefore, in the air conditioner 1, when the operation starts, the vertical wind direction plate 6 and the auxiliary vertical wind direction plate 7 are opened downward from the fully closed position, so that the cool air from the blower fan 3 is The flow changes between the wind direction plate 6 and the second upper wall portion 17 and between the auxiliary vertical wind direction plate 7 and the second upper wall portion 17.

[Features of the air conditioner of this embodiment]
The air conditioner of this embodiment has the following characteristics.

  In the air conditioner 1, the auxiliary up-and-down 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 during the cooling operation. 3 is not arranged in the flow direction of the cold air from 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. Further, since the rotation shaft 20a of the auxiliary vertical wind direction plate 7 is located behind the auxiliary vertical wind direction plate 7, a gap between the auxiliary vertical wind direction plate 7 and the rotation shaft 20a is increased. Therefore, even when the auxiliary up-and-down 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 during the cooling operation and is not disposed in the flow direction of the cool air from the blower fan 3. The cold air easily flows on the upper surface side of the auxiliary vertical wind direction plate 7. Therefore, it is possible to prevent condensation from forming on the upper surface of the auxiliary up-and-down wind direction plate 7 during the cooling operation.

  In the air conditioner 1, the rear end portion 7 a of the auxiliary up-and-down wind direction plate 7 moves away from the rotation shaft 20 a as it approaches the rear end of the auxiliary up-and-down wind direction plate 7 in a cross section perpendicular to the rotation axis 20 a of the auxiliary up-and-down wind direction plate 7. Inclined in the direction. Therefore, since the cool air from the blower fan 3 flows along the inclined surface of the rear end portion 7 a of the auxiliary up-and-down air direction plate 7, the cool air easily flows on the upper surface side of the auxiliary up-and-down air direction plate 7.

  In the air conditioner 1, since the second upper wall portion 17 is substantially horizontal, the auxiliary up-and-down wind direction plate 7 can be easily disposed at a position where it is not disposed in the flow direction of the cool air from the blower fan 3.

  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.

  In the air conditioner of the present embodiment, the second upper wall portion 17 is substantially horizontal. However, the second upper wall portion 17 may be inclined upward toward the front, or inclined downward toward the front. May be. Even in this case, in the cooling operation, when the auxiliary up-and-down 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, the same effect as in the present embodiment is obtained. It is done.

  Further, in the air conditioner of the present embodiment, the auxiliary up-and-down wind direction plate 7 is disposed at the horizontal position during operation in the horizontal blowing mode, and the auxiliary up-and-down wind direction plate 7 is disposed at the upper limit position during the swing operation of the up-and-down wind direction plate 6. Although the case has been described, the arrangement of the auxiliary vertical wind direction plate 7 can be changed within a range in which the auxiliary vertical wind direction plate 7 is arranged on the second upper wall portion 17 side from the surface S extending the first upper wall portion 16. The auxiliary up-and-down wind direction plate 7 is not limited to the case where the auxiliary up-and-down air direction plate 7 is fixed to the second upper wall portion 17 side from the surface S extending from the first upper wall portion 16, but the auxiliary up-and-down wind direction plate 7 extends the first upper wall portion 16. You may rock | fluctuate in the 2nd upper wall part 17 side from the done surface S. FIG.

  Further, in the air conditioner of the present embodiment, the auxiliary vertical wind direction plate 7 is second above the surface S extending the first upper wall portion 16 during operation in the horizontal blow mode and when the vertical wind direction plate 6 swings. Although the case where it arrange | positions at the wall part 17 side was demonstrated, it is not restricted at the time of the driving | operation in horizontal blowing mode and the swing operation | movement of the up-and-down wind direction board 6, The auxiliary up-and-down wind direction board 7 is the 1st upper wall part 16 at the time of cooling operation. The effect similar to this embodiment is acquired when it arrange | positions to the 2nd upper wall part 17 side rather than the surface S which extended the.

  In the air conditioner of the present embodiment, the rear end portion 7a of the auxiliary vertical wind direction plate 7 rotates as it approaches the rear end of the auxiliary vertical wind direction plate 7 in a cross section perpendicular to the rotation axis 20a of the auxiliary vertical wind direction plate 7. Although it inclines in the direction away from the axis | shaft 20a, it is not restricted to this.

  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.

  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.

  In addition, although the air conditioner of the present embodiment includes “operation in the horizontal blowing mode” and “swing operation” as the function of the air conditioner, the function may not be provided. In the case of an air conditioner that does not have the function of “operation in the horizontal blowing mode”, when the vertical wind direction plate 6 is arranged substantially horizontally, the auxiliary vertical wind direction plate 7 is provided with the first upper wall portion 16. May be arranged on the second upper wall portion 17 side from the surface S extending from the side.

  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”.

  If this invention is utilized, since cold air | flow flows on the back surface side of an auxiliary | assistant vertical wind direction board, it can prevent that a water droplet adheres to the back surface side of an auxiliary vertical wind direction board.

1 Indoor unit (air conditioner)
3 Blower fan 6 Vertical wind direction plate 7 Auxiliary vertical wind direction plate 7a Rear end 13 of auxiliary vertical wind direction plate Suction port 14 Air outlet 15 Upper wall portion 16 First upper wall portion 17 Second upper wall portion 20a Rotation of auxiliary vertical wind direction plate axis

Claims (3)

An air conditioner that performs cooling operation,
A blower fan arranged in an air flow path from the suction port to the blowout port;
An up-and-down wind direction plate that is rotatably supported in the vicinity of the outlet and extends along the longitudinal direction of the outlet;
An auxiliary up-and-down wind direction plate that is supported rotatably around a rotation axis near the upper wall portion of the air flow path above the up-and-down air direction plate and extends along the longitudinal direction of the air outlet;
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 auxiliary up-and-down wind direction plate is disposed on the second upper wall portion side from the surface extending the first upper wall portion during cooling operation,
During cooling operation, the cool air is configured to flow between the auxiliary up-and-down wind direction plate and the second upper wall portion,
The air conditioner characterized in that the rotating shaft is behind the auxiliary up-down wind direction plate.   2. The rear end portion of the auxiliary up-down wind direction plate in a cross section perpendicular to the rotation axis is inclined in a direction away from the rotation axis as approaching the rear end of the auxiliary up-down wind direction plate. Air conditioner.   The air conditioner according to claim 1 or 2, wherein the second upper wall portion is inclined substantially horizontally or upwardly toward the front.

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