JP2010281550A - Indoor unit of air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an indoor unit of an air conditioner for preventing attachment of frost to a vertical wind direction plate. <P>SOLUTION: When a cooling operation is started, a control device of this indoor unit 1 of the air conditioner tilts a lower flap 200 anticlockwise to be brought into contact with a lower stopper 260 (S1), then tilts the lower flap 200 clockwise to be stopped in a fan casing 60 (S2), further tilts a front flap 100 anticlockwise to be brought into contact with a front stopper 160 (S3), and then tilts the front flap 100 clockwise to be stopped in the fan casing 60 (S4), so that the lower flap 200 and the front flap 100 are gently disposed without difference in stage to form a roughly same curved faces though a clearance is found between their ends. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an indoor unit of an air conditioner, and more particularly to an indoor unit of an air conditioner having a wind direction plate at an outlet.

  Conventionally, in an indoor unit of an air conditioner (same as an indoor unit), an invention has been disclosed that sufficiently secures the length of an outlet channel so that dew does not adhere to the opening edge of the outlet (for example, a patent) Reference 1).

JP-A-5-272799 (page 3-4, FIG. 1)

The indoor unit of an air conditioner disclosed in Patent Document 1 is provided with a pair of outlet walls that open and close an outlet, and the outlet wall extends in the vertical direction with the middle of the opening height of the outlet as a boundary. Since it opens and closes in a double-spreading manner, adhesion of dew to the opening edge of the air outlet can be suppressed.
However, during the cooling operation (when opening), the lower surface of the blowing wall disposed above and the upper surface of the blowing wall disposed below form a substantially parallel air path to cool the blowing wall itself. For this reason, there is a problem that dew adheres to the upper surface (back surface of the air passage) of the blowing wall arranged above and the lower surface (back surface of the air passage) of the blowing wall arranged below. And the comfort was impaired by the dripping of the dew into the room.

  The present invention has been made to solve the above-described problem, and is an air conditioner room that can prevent dew from adhering to the air outlet itself and the air outlet wall (wind direction plate) installed at the air outlet. You will get a chance.

An indoor unit of an air conditioner according to the present invention is a box in which a blowing unit and a heat exchange unit are housed, and a blower outlet is formed in a range near the lower surface of the front surface of the box and a range near the front surface of the lower surface. The body,
A front flap disposed to be tiltable on the front side of the air outlet;
A lower flap disposed to be tiltable on the lower surface side of the outlet,
A fan casing forming a blowout air passage from the blower means to the blowout port;
Forward tilting means for tilting the front flap;
Downward tilting means for tilting the lower flap;
Control means for controlling the front tilting means and the lower tilting means so that the front flap and the lower flap stop in a posture that forms a smoothly connected surface with a predetermined interval in the blowing air passage. When,
It is characterized by having.

  In the indoor unit for an air conditioner according to the present invention, the control means controls the forward tilting means and the downward tilting means, and the front flap and the lower flap are smoothly connected to each other with a predetermined interval in the blowing air passage. Therefore, the cooled air can be blown out in a predetermined direction (for example, a substantially horizontal direction). At this time, since the front and back surfaces of the front flap and the front and back surfaces of the lower flap are both exposed to the blown-out air (cold air), dew does not adhere.

The front view explaining the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention. The perspective view which shows the indoor unit shown in FIG. Sectional drawing of the side view which shows the indoor unit shown in FIG. The perspective view which permeate | transmits and shows a part of indoor unit shown in FIG. The flowchart which shows operation | movement of the up-and-down wind direction board at the time of the air_conditionaing | cooling operation of the indoor unit shown in FIG. The side view which shows operation | movement of the up-down wind direction board at the time of the air_conditionaing | cooling operation start of the indoor unit shown in FIG. The side view which shows operation | movement of the up-and-down wind direction board at the time of cooling operation stop of the indoor unit shown in FIG. The flowchart which shows operation | movement of the up-and-down wind direction board at the time of the heating operation of the indoor unit shown in FIG. The side view which shows operation | movement of the up-and-down wind direction board at the time of the heating operation start of the indoor unit shown in FIG. The side view which shows operation | movement of the up-and-down wind direction board at the time of the heating operation stop of the indoor unit shown in FIG. The perspective view which decomposes | disassembles and shows the structural member which comprises the tilting mechanism part 1 of the indoor unit shown in FIG. The side view which shows operation | movement of the structural member of the tilting mechanism part 1 shown in FIG. The side view which shows operation | movement of the structural member of the tilting mechanism part 1 shown in FIG. The side view which shows operation | movement of the structural member of the tilting mechanism part 1 shown in FIG. The perspective view which decomposes | disassembles and shows the structural member which comprises the tilting mechanism part 2 of the indoor unit shown in FIG. The side view which shows operation | movement of the structural member of the tilting mechanism part 2 shown in FIG. The side view which shows operation | movement of the structural member of the tilting mechanism part 2 shown in FIG. The side view which shows operation | movement of the structural member of the tilting mechanism part 2 shown in FIG.

[Embodiment 1]
(Air conditioner indoor unit)
1 to 10 illustrate an indoor unit of an air conditioner according to Embodiment 1 of the present invention. FIG. 1 is a front view, FIG. 2 is a perspective view, and FIG. 3 is a sectional view in side view. 4 is a perspective view partially showing, FIG. 5 is a flowchart showing the operation of the vertical air direction plate during cooling operation, FIG. 6 is a side view schematically showing the operation of the vertical air direction plate at the start of cooling operation, FIG. 7 is a side view schematically showing the operation of the vertical air direction plate when the cooling operation is stopped, FIG. 8 is a flowchart showing the operation of the vertical air direction plate during the heating operation, and FIG. 9 is the operation of the vertical wind direction plate when the heating operation is started. FIG. 10 is a side view schematically showing the operation of the up / down wind direction plate when the heating operation is stopped. In addition, each figure is drawn typically and this invention is not limited to the form shown in figure.

  1 to 4, an indoor unit (hereinafter referred to as “indoor unit”) 1 of an air conditioner 1 includes a box-shaped main body 10, a blower fan 20 housed in the main body 10, and one of the blower fans 20. A heat exchanger 30 disposed opposite to the front panel, and a front panel that covers the front (left side in FIG. 3) opening of the main body 10 (more precisely, a design panel that also covers a part of the side of the main body 10) And 40).

(Air outlet)
The main body 10 has a rear surface (right side in FIG. 3) installed on an indoor wall or the like, and an upper surface (upper side in FIG. 3) has a suction port 50 for sucking indoor air, The fan casing 60 for forming the air blowing path from the blower fan 20 is provided.
The fan casing 60 includes a casing front member (same as the casing front plate) 61 disposed on the front opening side, a casing rear member (same as the casing rear plate) 62 disposed on the rear side, and a partition wall forming a side surface. A space having a predetermined width sandwiched between 80 (see FIG. 11). And the clearance gap formed between the termination | terminus of the fan casing 60, ie, the front side edge of a lower surface (lower side in FIG. 3), and the lower side edge of the front panel 40 becomes the blower outlet 63. ing.

(Vertical wind direction plate)
Further, a front flap 100 and a lower flap 200 on the front side and the rear side of the blower outlet 63 are tiltably installed as a vertical wind direction plate.
A front flap arm 101 is installed at predetermined intervals on the front flap back surface 100b of the front flap 100, and a front flap rotation shaft 102 is installed on the front flap arm 101. On the other hand, a casing flange 64 is installed on the casing front member 61, and a casing bearing 65 is installed on the casing flange 64. The front flap rotation shaft 102 is rotatably supported by the casing bearing 65.
Similarly, a lower flap arm 201 is installed at a predetermined interval on the lower flap back surface 200b of the lower flap 200, and a lower flap rotation shaft 202 is installed on the lower flap arm 201. On the other hand, a casing flange (not shown) is installed at the outlet 63, and a casing bearing is installed on the casing flange. And the lower flap rotating shaft 202 is rotatably supported by the casing bearing.

Further, a front stopper 160 that defines a tilting range when the front flap 100 tilts toward the inside of the fan casing 60 (counterclockwise) and a lower flap 200 toward the outside of the fan casing 60 (counterclockwise). And) a lower stopper 260 for defining a tilting range when tilting. The structures of the front stopper 160 and the lower stopper 260 are not limited, and may be structures in which the front flap 100 and the lower flap 200 are in contact with each other, or protrusions and steps provided on the front flap rotation shaft 102 and the lower flap rotation shaft 202. The structure which the protrusion and level | step difference which were provided in contact | abut may be sufficient.
Hereinafter, for ease of understanding, the front stopper 160 provided on the casing front member 61 and abutted when the front flap 100 tilts to the maximum and the casing rear member 62 are provided, and the lower flap 200 tilts to the maximum. The lower stopper 260 that comes into contact with the case will be described as an example.
The control means (not shown) controls the tilt mechanism (not shown) to tilt the front flap 100 and the lower flap 200 independently. The tilt mechanism will be described in detail separately.

(State when operation stopped)
6A, a control device (not shown) places the front flap 100 in a substantially parallel posture with the front panel 40 when operation is stopped. At this time, the front flap back surface 100b is located on the fan casing 60 side, and the front flap surface 100a is located on the outside (front side) so that it can be viewed from the room.
Further, the lower flap 200 is in a posture substantially parallel to the lower surface 70, the lower flap back surface 200b is located on the fan casing 60 side, and the lower flap surface 200a is located on the outer side (lower side) so that it can be viewed from the room. Yes.
6 (a) exaggerates the size of the member, there is a gap between the lower edge of the front flap 100 and the edge of the front side of the lower flap 200. Are close enough that they do not interfere. Therefore, since the blower outlet 63 is closed by the front flap 100 and the lower flap 200, the aesthetics are maintained.

(Operation at the start of cooling operation)
Next, the operation at the start of the cooling operation will be described with reference to FIGS.
In FIG. 6B, when a signal to start the cooling operation is input to the control device (SS1 in FIG. 5), the control device first moves the lower flap rotation shaft 202 to the lower stopper 260. Tilt in the abutting direction (counterclockwise in FIG. 6) and abut on the lower stopper 260 (S1 in FIG. 5).
At this time, since the lower flap rotating shaft 202 is rotated via a clutch mechanism (sliding mechanism), the lower flap 200 is not rotated excessively after the lower flap 200 abuts against the lower stopper 260. Therefore, even when the posture of the lower flap 200 changes (slightly tilts or the like) when the operation is stopped, the positioning is accurately performed by contacting the lower stopper 260.

Next, in FIG. 6C, the lower flap rotation shaft 202 is rotated by a predetermined angle A2 in a direction (clockwise) in which the lower flap 200 moves away from the lower stopper 260, and is stopped in the fan casing 60 (FIG. 6). 5 S2).
At this time, the lower flap 200 is located approximately in the middle between the casing front member 61 and the casing rear member 62, and the lower flap surface 200a is positioned upward and is fixed in a posture inclined by a predetermined angle with respect to the horizontal direction. Yes.

6D, this time, the front flap rotating shaft 102 is rotated in the direction in which the front flap 100 abuts against the front stopper 160 (counterclockwise) to abut against the front stopper 160 (S3 in FIG. 5). ).
At this time, similarly to the lower flap rotating shaft 202, the front flap rotating shaft 102 is also rotated through the clutch mechanism (sliding mechanism), and therefore the front flap 100 is rotated excessively after contacting the front stopper 160. There is nothing. Therefore, even when the posture of the front flap 100 changes (slightly tilts, etc.) when the operation is stopped, the positioning is performed accurately by contacting the front stopper 160.

6E, the front flap rotating shaft 102 is further rotated by a predetermined angle A4 in a direction (clockwise) in which the front flap 100 is separated from the front stopper 160, and is stopped in the fan casing 60 (FIG. 5). S4).
At this time, the front flap 100 is substantially in the middle of the casing front member 61 and the casing rear member 62, and the front flap surface 100a is positioned below and is fixed in a posture inclined by an angle closer to the horizontal direction than the lower flap. ing.
That is, although the lower flap 200 and the front flap 100 have a gap between their edges, they are smoothly arranged without a step so as to form substantially the same curved surface (precisely, a slightly bent surface). Has been. Therefore, the air that flows along the lower flap surface 200a continues to flow along the front flap back surface 100b, and the air that flows along the lower flap back surface 200b continues to flow along the front flap surface 100a.

Therefore, since the lower flap surface 200a and the lower flap back surface 200b, and the front flap surface 100a and the front flap back surface 100b are all exposed to the flow of cooled air, no dew adheres to them. Therefore, dew does not drip into the room and comfort is improved.
In addition, since the cooled air is blown out in the substantially horizontal direction by the lower flap 200 and the front flap 100 that form substantially the same curved surface in the substantially horizontal direction, the load on the blower fan 20 can be increased without increasing the load. Cold air reaches far away, and the room can be cooled over a wide area.
Therefore, since the temperature unevenness in the room is alleviated, in order to lower the temperature far from the indoor unit 1, the set temperature is excessively lowered, and the blower fan 20 and the heat exchanger 30 (more precisely, the heat exchanger) Therefore, there is no need to increase the burden of the refrigeration cycle that supplies cold heat to 30 and an energy saving effect can be obtained. On the other hand, since the temperature near the indoor unit 1 does not become excessively low, comfort is improved.

In the above, the lower flap 200 is brought into contact with the lower stopper 260 and then stopped in the blowing air passage, and then the front flap 100 is brought into contact with the front stopper 160 and then stopped in the blowing air passage. However, the present invention is not limited to this, and either may be executed first. For example, after the lower flap 200 and the front flap 100 are brought into contact with the lower stopper 260 and the front stopper 160, respectively, the front flap 100 is brought into contact with the front stopper 160 even if both are stopped in the blowing air passage. The lower flap 200 may be brought into contact with the lower stopper 260.
Further, when the posture of the lower flap 200 or the front flap 100 does not change after the operation is stopped, the step of bringing the lower flap 200 or the front flap 100 into contact with the lower stopper 260 and the front stopper 160, respectively, is omitted. Also good.

(Operation at the end of cooling operation)
Next, the operation at the end of the cooling operation will be described. The operation at the end of the operation cooling operation is performed by reversing the operation at the start of the cooling operation.
(A) of FIG. 7 is the same as (e) of FIG. 6, and shows the posture immediately before the end of the cooling operation.
In FIG. 7B, when a cooling operation end signal is input to the control means (SS2 in FIG. 5), the control means first contacts the front flap rotating shaft 102 with the front flap 100 against the front stopper 160. By rotating in the direction (counterclockwise), the front flap 100 is brought into contact with the front stopper 160 (S5 in FIG. 5).
In FIG. 7C, the front flap rotating shaft 102 is rotated by a predetermined angle A6 in a direction away from the front stopper 160 (clockwise) and stopped in a posture parallel to the front panel 40 (S6 in FIG. 5). ).

7D, this time, the lower flap rotating shaft 202 is rotated in the direction in which the lower flap 200 abuts on the lower stopper 260, and the lower flap 200 abuts on the lower stopper 260 (S7 in FIG. 5). .
7E, finally, the lower flap rotating shaft 202 is rotated by a predetermined angle A8 in a direction (clockwise) in which the lower flap 200 is separated from the lower stopper 260, so that the lower flap 200 is parallel to the lower surface 70. The posture is stopped (S8 in FIG. 5).

At this time, similarly to the operation at the start of the cooling operation, the front flap 100 and the lower flap 200 are tilted after contacting the front stopper 160 and the lower stopper 260, respectively. Even when the posture of 200 is changed (slightly tilted or the like), the posture is stopped at the normal operation stop posture (see FIG. 6A). Therefore, the air outlet 63 of the indoor unit 1 is closed, and the aesthetic appearance is maintained.
It should be noted that the order of the steps is not limited and that the step of bringing the lower flap 200 or the front flap 100 into contact with the lower stopper 260 and the front stopper 160 may be omitted in the operation at the start of the cooling operation. The same.

(Operation at the start of heating operation)
Next, the operation at the start of the heating operation will be described with reference to FIGS.
(A) of FIG. 9 shows the time of operation stop, and is the same as (a) of FIG.
In FIG. 9B, when a heating operation start signal is input to the control means (SS11 in FIG. 8), the control means first makes the lower flap rotating shaft 202 contact the lower stopper 260 with the lower flap rotation shaft 202. It is tilted counterclockwise (in FIG. 5) and brought into contact with the lower stopper 260 (S11 in FIG. 8).

Next, in FIG. 9C, the lower flap rotation shaft 202 is rotated by a predetermined angle B2 in a direction (clockwise) in which the lower flap 200 is separated from the lower stopper 260, and stopped in a posture across the air outlet 63. (S12 in FIG. 8).
At this time, the lower flap 200 is substantially parallel to a virtual surface obtained by smoothly extending the casing rear member (inclined so that the front side is downward), and the lower flap back surface 200b is positioned upward.

In FIG. 9D, the front flap 100 is tilted in a direction (counterclockwise) in contact with the front stopper 160 to contact the front stopper 160 (S13 in FIG. 8).
In FIG. 9D, the front flap 100 is tilted by a predetermined angle B4 in the direction away from the front stopper 160 (clockwise) so as to face the lower flap 200 and approach the downstream of the wind flow. The posture is stopped (S14 in FIG. 8).

At this time, the front flap 100 is inclined larger than the lower flap 200 (same as a posture closer to the vertical), and the front flap surface 100a is positioned below. Therefore, the front flap surface 100a and the lower flap back surface 200b form a wind path that becomes narrower as the wind flow becomes downstream.
Therefore, air heated vigorously downward from the indoor unit 1 is blown out. Warm air does not accumulate on the ceiling side, and the room can be heated without temperature unevenness.
Note that the values of the angles B2 and B4 of the lower flap 200 are not limited, and may be set as appropriate by the user or may vary with a predetermined time cycle. Further, during the heating operation, the lower flap 200 remains in contact with the lower stopper 260, that is, “B2 = 0 °”, or the front flap 100 remains in contact with the front stopper 160, that is, “B4 = 0 °”. There may be.
It should be noted that the order of the steps is not limited and that the step of bringing the lower flap 200 or the front flap 100 into contact with the lower stopper 260 and the front stopper 160 may be omitted in the operation at the start of the cooling operation. The same.

(Operation at the end of heating operation)
The operation at the end of the heating operation conforms to the operation at the end of the cooling operation (see FIG. 7).
(A) of FIG. 10 is the same as (e) of FIG. 9, and shows the posture immediately before the end of the heating operation.
In FIG. 10B, when a heating operation end signal is input to the control means (SS12 in FIG. 8), the control means first contacts the front flap rotating shaft 102 with the front flap 100 against the front stopper 160. By rotating in the direction (counterclockwise), the front flap 100 is brought into contact with the front stopper 160 (S15 in FIG. 8).
10 (c), the front flap rotating shaft 102 is rotated by a predetermined angle B6 in a direction away from the front stopper 160 (clockwise), and stopped in a posture parallel to the front panel 40 (S16 in FIG. 8). ).

10D, this time, the lower flap rotation shaft 202 is rotated in the direction in which the lower flap 200 abuts on the lower stopper 260, and the lower flap 200 abuts on the lower stopper 260 (S17 in FIG. 8). .
10E, finally, the lower flap rotation shaft 202 is rotated by a predetermined angle B8 in a direction (clockwise) in which the lower flap 200 is separated from the lower stopper 260, so that the lower flap 200 is parallel to the lower surface 70. The posture is stopped (S18 in FIG. 8).

At this time, similarly to the operation at the start of the heating operation, the front flap 100 and the lower flap 200 are tilted after contacting the front stopper 160 and the lower stopper 260, respectively. Even when the posture of 200 is changed (slightly tilted or the like), the posture is stopped at the normal operation stop posture (see FIG. 6A). Therefore, the air outlet 63 of the indoor unit 1 is closed, and the aesthetic appearance is maintained.
It should be noted that the order of the steps is not limited and that the step of bringing the lower flap 200 or the front flap 100 into contact with the lower stopper 260 and the front stopper 160 may be omitted in the operation at the start of the cooling operation. The same.

(Tilt mechanism 1)
Next, the tilting mechanism 1 will be described with reference to FIGS.
FIGS. 11 to 14 illustrate the tilt mechanism 1, FIG. 11 is an exploded perspective view showing the constituent members, and FIGS. 12 to 13 show the operation of the constituent members of the tilt mechanism 1. It is a side view. 11 to 14, the front flap 100 and the lower flap 200 are tilted independently, and the first stepping motor 190 that tilts the front flap 100 and the second stepping motor 290 that tilts the lower flap 200. Is housed in a motor case 90 installed on the partition wall 80 of the main body 10. Hereinafter, the tilting mechanism will be described in detail.

(First braking member)
In FIG. 11, among the front flap arms 101 installed on the front flap 100, the first brake member 110 is installed on the front flap arm 101 closest to the partition wall 80 so as to tilt integrally.
The first braking member 110 is connected to a shaft portion 111 having a circular cross section, a disk portion 112 installed on the shaft portion 111, an arc-shaped recess 113 formed in the disk portion 112, and a tilt shaft of the first stepping motor 190. And an end 114.

(Second braking member)
Of the lower flap arms 201 installed in the lower flap 200, the second drive member 210 is installed on the lower flap arm 201 closest to the partition wall 80 so as to tilt integrally.
The second drive member 210 includes a shaft section 211 having a circular cross section, a drive flange 212 installed on the shaft section 211, a drive pin 213 installed at the tip of the drive flange 212, and a tilt shaft of the second stepping motor 290. And an end 214 to be connected.
The second driving member 210 is connected to the second braking member 240 through the second connecting member 230. The second connecting member 230 has a connecting arm 231 and connecting pin holes 233 and 234 respectively installed at both ends of the connecting arm 231.
The second braking member 240 is installed at the shaft portion 241, a fan-shaped portion 242 having a sector shape centered on the center of the shaft portion 241, a braking flange 243 installed on the shaft portion 241, and the tip of the braking flange 243. And a braking pin 244.

(Partition wall bearing)
On the other hand, the partition wall 80 includes a partition wall bearing 81 that pivotally supports the shaft portion 111 of the first braking member 110 and a partition wall bearing that pivotally supports the partition wall 80 side of the shaft portion 211 of the second drive member 210. 82, and a partition wall bearing 84 that pivotally supports the shaft portion 241 of the second braking member 240 in a tiltable manner. At this time, the partition bearing 84 is disposed in a triangular shape between the partition bearing 81 and the partition bearing 82.

(Motor case)
In addition, the motor case 90 is provided with a bearing (not shown) that pivotally supports the first stepping motor 190 side of the shaft portion 241 of the second braking member 240. One may be omitted.
Further, a through hole 98 through which a nut (not shown) passes is formed in the motor case 90 so as to be installed in the partition wall 80, and a partition female screw 89 is formed in the partition wall 80 at a position corresponding to the through hole 98. Has been. The first stepping motor 190 and the second stepping motor 290 are installed in the motor case 90 by known means.

The shaft portion 111 of the first braking member 110 connected to the front flap 100 is provided by the partition wall bearing 81, and the shaft portion 211 of the second drive member 210 connected to the lower flap 200 is provided by the partition wall bearing 82. The shaft portion 241 of 240 is pivotally supported by a partition wall bearing 84 and a bearing (not shown) provided on the motor case 90 so as to be tiltable.
Further, the connection pin 233 and the connection pin 234 of the second connection member 230 are tiltably locked to the drive pin 213 of the second drive member 210 and the brake pin 244 of the second brake member 240, respectively.

(Tilt mechanism when operation is stopped)
At the time of operation stop (pause) shown in FIG. 12, the front flap 100 stands substantially vertically, and the lower flap 200 is lying down substantially horizontally (see FIG. 6A).
At this time, the arc-shaped recess 113 of the first braking member 110 of the front flap 100 stands substantially vertically. In addition, the drive flange 212 of the second drive member 210 is erected to push the second connecting member 230 upward. Therefore, the fan-shaped portion 242 of the second braking member 240 is lying down substantially horizontally.
The arc surface (concave surface) of the arc-shaped recess 113 and the arc surface (convex surface) of the fan-shaped portion 242 are in contact with each other. Accordingly, even if the front flap 100 is tilted, the front flap 100 cannot be tilted because the contact prevents the tilt. That is, the front flap 100 is in a locked state.

(Tilt mechanism during operation)
In FIG. 13, the second stepping motor 290 tilts the second drive member 210 clockwise (when tilted counterclockwise when viewed from the back of the page), the drive flange 212 is lying down. . For this reason, the second connecting member 230 is pulled down, and the second braking member 240 is also tilted clockwise. That is, the fan-shaped portion 242 is inverted and its arc portion is away from the arc-shaped recess 113 of the first braking member, so that the front flap 100 is tiltable. That is, the front flap 100 is unlocked (hereinafter sometimes referred to as “unlock”) (see FIG. 6C).

  In FIG. 14, if the first stepping motor 190 is activated and the front flap 100 is tilted counterclockwise, the front flap 100 can be laid down substantially horizontally. In this state, if the lower flap 200 is tilted counterclockwise, the tip of the fan-shaped portion 242 of the second braking member 240 comes into contact with the disk portion 112 of the first braking member 110, so that the tilt is tilted. Can not do it. In the figure, since a gap is provided between the two, it is tilted exactly by the gap (see (e) of FIG. 6).

As described above, the indoor unit 1 has the tilting mechanism, and the front flap 100 or the lower flap 200 does not tilt unintentionally by locking or unlocking the first braking member 110 and the second braking member 240. Even if the front flap 100 and the lower flap 200 are arranged close to each other, they do not interfere when they are tilted.
Therefore, the front flap 100 and the lower flap 200 can cover the air outlet 63 with a relatively narrow gap. That is, the design of the air outlet 63 is ensured by the front flap surface 100 a of the front flap 100 and the surface of the lower flap 200.

  In addition, each above figure is drawn typically, Comprising: A mutual position and magnitude relationship are not limited to what is illustrated. In addition, the first braking member 110 and the second braking member 240 are in contact with each other in a wide range of the arc-shaped contact surface, but the first braking member 110 is flat with the arc-shaped recess 113 of the first braking member 110 as a plane. Only when the 110 is tilted by a predetermined angle, the second brake member 240 may be partially abutted. Further, since the disk portion 112 only needs to form a contact surface with the second braking member 240, it does not have to be circular.

(Tilt mechanism 2)
Next, since the present invention does not limit the tilting mechanism, the tilting mechanism 2 is exemplified.
FIGS. 15 to 18 illustrate the tilting mechanism 2, in which FIG. 15 is an exploded perspective view showing the constituent members, and FIGS. 16 to 17 show the operations of the constituent members of the tilting mechanism 2. It is a side view.

(First braking member)
In FIG. 15, among the front flap arms 101 installed on the front flap 100, the first brake member 120 is installed on the front flap arm 101 closest to the partition wall 80 so as to tilt integrally.
The first braking member 120 includes a shaft portion 121 having a circular cross section, a cam portion 122 installed on the shaft portion 121, and an end portion 124 connected to the tilting shaft of the first stepping motor 190. At this time, the cam part 122 is an end face cam in which a step part 123 is formed, and the large diameter part 122a and the small diameter from the center of the shaft part 121 are smaller than the large diameter part 122a with the step part 123 as a boundary. Part 122b.

(Second braking member)
Of the lower flap arms 201 installed on the lower flap 200, the second brake member 220 is installed on the lower flap arm 201 closest to the partition wall 80 so as to tilt integrally.
The second braking member 220 includes a shaft portion 221 having a circular cross section, a cam portion 222 installed on the shaft portion 221, and an end portion 224 connected to the tilting shaft of the second stepping motor 290. At this time, the cam portion 222 is an end face cam in which the step portion 223 is formed, and the large diameter portion 222a and the small diameter from the center of the shaft portion 221 are smaller than the large diameter portion 222a with the step portion 223 as a boundary. Part 222b.

(Seesaw material)
The seesaw member 300 has an arm portion 304 and a swing shaft 303 provided at the center of the arm portion 304. Hereinafter, one tip of the arm part 304 is referred to as a first tip 301 and the other tip is referred to as a second tip 302.

(Partition wall bearing)
On the other hand, the partition wall 80 includes a partition wall bearing 81 that pivotally supports the shaft portion 121 of the first braking member 120, a partition wall bearing 82 that pivotally supports the shaft portion 221 of the second braking member 220, and a seesaw. A partition wall bearing 83 that pivotally supports the partition wall 80 side of the swing shaft 303 of the member 300 is installed.
In addition, the motor case 90 side of the swing shaft 303 of the seesaw member 300 is pivotally supported by a bearing (not shown) provided in the motor case 90, but one of the bearing or the partition wall bearing 83 is omitted. May be.

(Tilt mechanism when operation is stopped)
At the time of operation stop (pause) shown in FIG. 16 (a), the front flap 100 stands substantially vertically, while the lower flap 200 is lying substantially horizontally (see FIG. 6 (a)).
At this time, the small-diameter portion 122b of the first braking member 120 integrally connected to the front flap 100 is positioned above, while the large-diameter portion of the second braking member 220 integrally connected to the lower flap 200. The second tip 302 of the seesaw member 300 is in contact with the large diameter portion 222a. Further, the first tip 301 of the seesaw member 300 is opposed to the small diameter portion 122b of the first braking member 120 with a slight gap therebetween.

  Accordingly, when the front flap 100 is tilted counterclockwise, the step portion 123 of the first braking member 120 comes into contact with the first tip 301 of the seesaw member 300 and tries to tilt the seesaw member 300 clockwise. However, since the second tip 302 of the seesaw member 300 is in contact with the large diameter portion 222a of the second braking member 220, the front flap 100 cannot be tilted counterclockwise. That is, the front flap 100 is in a locked state.

(Tilt mechanism during operation)
At the start of the operation shown in FIG. 17, the second stepping motor 290 tilts the second drive member 210 clockwise (when viewed from the back of the page, it tilts counterclockwise). The small diameter portion 222b of the member 220 is positioned above (see FIG. 6C).
Then, the second tip 302 of the seesaw member 300 can tilt (swing) until it comes into contact with the small diameter portion 222b of the second braking member 220.

In FIG. 18, when the first stepping motor 190 is activated and the front flap 100 is tilted counterclockwise, the front flap 100 assumes a posture lying down substantially horizontally (see FIG. 6E).
That is, since the seesaw member 300 can tilt (swing) as described above, when the first braking member 120 tilts counterclockwise, the large-diameter portion 122a of the cam portion 122 becomes the second of the seesaw member 300. The seesaw member 300 is tilted in contact with the tip 302. That is, the tilt of the front flap 100 is in an unlocked state (same as unlocking). At this time, the second tip 302 of the seesaw member 300 is in contact with the small diameter portion 222b of the second braking member 220 or opposed with a slight gap.

  When the lower flap 200 is tilted counterclockwise, the second tip 302 of the seesaw member 300 comes into contact with the step portion 223 of the second braking member 220 and tries to tilt the seesaw member 300 counterclockwise. However, since the first tip 301 of the seesaw member 300 is in contact with the large diameter portion 122a of the first braking member 120, the lower flap 200 cannot be tilted counterclockwise. That is, the lower flap 200 is in a locked state.

  According to the present invention, it is possible to prevent dew from adhering to the up-and-down wind direction plate during cooling operation, and therefore, it can be widely used as indoor units for various domestic and commercial air conditioners.

  1: indoor unit, 10: main body, 20: blower fan, 30: heat exchanger, 40: front panel, 50: suction port, 60: fan casing, 61: front casing member, 62: rear casing member, 63: blower Outlet, 64: casing flange, 65: casing bearing, 70: lower surface, 80: partition wall, 81: partition wall bearing, 82: partition wall bearing, 83: partition wall bearing, 84: partition wall bearing, 89: partition wall female screw, 90: motor case 98: Through hole, 100: Front flap, 100a: Front flap surface, 100b: Front flap back surface, 101: Front flap arm, 102: Front flap rotation shaft, 110: Braking member, 111: Shaft portion, 112: Disc portion , 113: arc-shaped concave portion, 114: end portion, 120: braking member, 121: shaft portion, 122: cam portion, 122a: large diameter portion, 122b: small diameter portion, 123: step , 124: end, 160: front stopper, 190: stepping motor, 200: lower flap, 200a: lower flap surface, 200b: lower flap back surface, 201: lower flap arm, 202: lower flap rotating shaft, 210: driving member 211: shaft portion, 212: drive flange, 213: drive pin, 214: end portion, 220: braking member, 221: shaft portion, 222: cam portion, 222a: large diameter portion, 222b: small diameter portion, 223: Stepped portion, 224: end portion, 230: connecting member, 231: connecting arm, 233: connecting pin hole, 234: connecting pin, 240: braking member, 241: shaft portion, 242: fan-shaped portion, 243: braking flange, 244 : Braking pin, 260: Lower stopper, 290: Stepping motor, 300: Seesaw member, 301: Tip, 302: Tip, 303 Swing shaft 304: arm, A2: angle, A4: angle, A6: angle, A8: angle, B2: angle, B4: angle.

Claims (8)

A box in which the air blowing means and the heat exchange means are housed, and a main body in which a blower outlet is formed in a range near the lower surface of the front surface of the box and a range near the front surface of the lower surface;
A front flap disposed to be tiltable on the front side of the air outlet;
A lower flap disposed to be tiltable on the lower surface side of the outlet,
A fan casing forming a blowout air passage from the blower means to the blowout port;
Forward tilting means for tilting the front flap;
Downward tilting means for tilting the lower flap;
Control means for controlling the front tilting means and the lower tilting means so that the front flap and the lower flap stop in a posture that forms a smoothly connected surface with a predetermined interval in the blowing air passage. When,
An indoor unit of an air conditioner characterized by comprising: A box in which the air blowing means and the heat exchange means are housed, and a main body in which a blower outlet is formed in a range near the lower surface of the front surface of the box and a range near the front surface of the lower surface;
A front flap disposed to be tiltable on the front side of the air outlet;
A lower flap disposed to be tiltable on the lower surface side of the outlet,
A fan casing forming a blowout air passage from the blower means to the blowout port;
A front stopper that defines a tilting range when the front flap tilts toward the inside of the fan casing;
A lower stopper that defines a tilting range when the lower flap tilts toward the outside of the fan casing;
Forward tilting means for tilting the front flap;
Downward tilting means for tilting the lower flap;
Control means for controlling the forward tilting means and the downward tilting means,
When the control means stops operation, the front flap is in a posture parallel to the front surface, and the lower flap is in a posture parallel to the bottom surface,
A first step of tilting the lower flap in a direction to contact the lower stopper at the start of cooling operation to contact the lower stopper;
Subsequent to the first step, the second flap is tilted in a direction away from the lower stopper, and stopped in the blowing air path;
Following the second step, a third step of tilting the front flap in a direction to contact the front stopper to contact the front stopper;
Subsequent to the third step, the front flap is tilted in a direction away from the front stopper, and is stopped in a posture that forms a surface that is smoothly connected to the lower flap at a predetermined interval; The indoor unit of the air conditioner characterized by performing. A front flap arm is fixed to the back surface of the front flap located on the blowing air passage side of the front flap when operation is stopped, and a front flap rotation shaft is provided at the front end of the front flap arm to rotatably support the front flap arm. ,
When the operation is stopped, a lower flap arm is fixed to the back surface of the lower flap located on the blowing air passage side of the lower flap, and a lower flap rotation shaft that rotatably supports the lower flap arm is provided at the tip of the lower flap arm. ,
The indoor unit of an air conditioner according to claim 2, wherein, in the fourth step, the back surface of the front flap is positioned on the lower side, and the back surface of the lower flap is positioned on the upper side. A fifth step in which the control means tilts the front flap in a direction to abut against the front stopper at the end of cooling operation to abut on the front stopper;
Subsequent to the fifth step, a sixth step of tilting the front flap in a direction away from the front stopper to stop it in a posture parallel to the front surface;
Subsequent to the sixth step, a seventh step of tilting the lower flap in a direction to contact the lower stopper to contact the lower stopper;
The eighth step is executed by tilting the lower flap away from the lower stopper and stopping the lower flap in a posture parallel to the lower surface following the seventh step. Item 2. An indoor unit for an air conditioner according to item 2 or 3. A box in which the air blowing means and the heat exchange means are housed, and a main body in which a blower outlet is formed in a range near the lower surface of the front surface of the box and a range near the front surface of the lower surface;
A front flap disposed to be tiltable on the front side of the air outlet;
A lower flap disposed to be tiltable on the lower surface side of the outlet,
A fan casing forming a blowout air passage from the blower means to the blowout port;
Forward tilting means for tilting the front flap;
Downward tilting means for tilting the lower flap;
The forward tilting means and the downward tilting means so that the lower flap stops in a posture crossing the outlet, and the front flap faces the lower flap and stops closer to the downstream of the wind flow. Control means for controlling
An indoor unit of an air conditioner characterized by comprising: A box in which the air blowing means and the heat exchange means are housed, and a main body in which a blower outlet is formed in a range near the lower surface of the front surface of the box and a range near the front surface of the lower surface;
A front flap disposed to be tiltable on the front side of the air outlet;
A lower flap disposed to be tiltable on the lower surface side of the outlet,
A fan casing forming a blowout air passage from the blower means to the blowout port;
A front stopper that defines a tilting range when the front flap tilts toward the inside of the fan casing;
A lower stopper that defines a tilting range when the lower flap tilts toward the outside of the fan casing;
Forward tilting means for tilting the front flap;
Downward tilting means for tilting the lower flap;
Control means for controlling the forward tilting means and the downward tilting means,
When the control means stops operation, the front flap is in a posture parallel to the front surface, and the lower flap is in a posture parallel to the bottom surface,
A first step of tilting the lower flap in a direction to contact the lower stopper at the start of heating operation to contact the lower stopper;
Subsequent to the first step, the second flap is tilted in a direction away from the lower stopper, and stopped in a posture across the outlet;
Following the second step, a third step of tilting the front flap in a direction to contact the front stopper to contact the front stopper;
Subsequent to the third step, a fourth step is performed in which the front flap is tilted in a direction away from the front stopper, and is opposed to the lower flap so as to stop closer to the downstream of the wind flow. An air conditioner indoor unit characterized in that A front flap arm is fixed to the back surface of the front flap located on the blowing air passage side of the front flap when operation is stopped, and a front flap rotation shaft is provided at the front end of the front flap arm to rotatably support the front flap arm. ,
When the operation is stopped, a lower flap arm is fixed to the back surface of the lower flap located on the blowing air passage side of the lower flap, and a lower flap rotation shaft that rotatably supports the lower flap arm is provided at the tip of the lower flap arm. ,
The indoor unit of an air conditioner according to claim 6, wherein, in the fourth step, the front flap back surface is positioned obliquely upward, and the lower flap back surface is positioned diagonally downward. A fifth step of causing the front flap to abut on the front stopper by tilting the front flap in a direction of abutting on the front stopper at the end of heating operation;
Following the fifth step, a sixth step of tilting the front flap in a direction away from the front stopper to stop it in a posture parallel to the front surface;
Subsequent to the sixth step, a seventh step of tilting the lower flap in a direction to contact the lower stopper to contact the lower stopper;
The eighth step is executed by tilting the lower flap away from the lower stopper and stopping the lower flap in a posture parallel to the lower surface following the seventh step. Item 6. An air conditioner indoor unit according to item 6 or 7.

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