JP2012211746A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent condensation of a vertical-wind-direction control plate upon cooling.SOLUTION: In a casing 1 having an inlet 3 and an outlet 7, heat exchangers 4, 5, and 6 and a blower 8 are arranged in a passage connecting the inlet 3 with the outlet 7. In the outlet 7, the vertical-wind-direction control plate 12 is disposed which vertically controls a wind direction sent out the outside from the outlet 7. In addition, in a passage between the blower 8 and the vertical-wind-direction control plate 12, a wind direction guide 14 is disposed which sends some of wind flowing in the passage to the downside of the vertical-wind-direction control plate 12 upon being controlled such that the wind direction is lateral blowing.

Description

  The present invention relates to an air conditioner that can prevent condensation on an up-and-down air direction control plate.

  2. Description of the Related Art Conventionally, an air conditioner including a wind direction guide behind a vertical wind direction control plate provided at an air outlet is known. When viewed in the air flow direction, this wind direction guide is disposed between the two vertical air direction control plates, and has a function of preventing the cooling air layer and the heating air layer discharged from the cross flow fan from being mixed up and down in the dehumidifying operation. is doing. This makes it possible to obtain dehumidified air having no cold air feeling on the human skin during the dehumidifying operation. In addition, the two up-and-down air direction control boards are controlled to a horizontal blowing attitude | position at the time of air_conditionaing | cooling operation (for example, refer patent document 1).

JP-A-7-139797 (FIGS. 1 and 5)

  However, when the airflow direction guide is disposed between the two vertical airflow direction control plates as viewed in the airflow direction, the flow on the airway back side between the crossflow fan and the outlet is weak. For this reason, at the time of cooling, the flow of moist air (room air) from below the air outlet easily reaches the up-and-down air direction control plate, reaches the lower surface of the up-and-down air direction control plate, and there is a problem that condensation is likely to occur. .

  The technical problem of the present invention is to make it possible to prevent dew condensation on the vertical air direction control plate.

  The air conditioner according to the present invention has the following configuration. That is, a heat exchanger and a blower are arranged in an air passage connecting a suction port and an air outlet of a housing having an air inlet and an air outlet, and the air direction sent to the outside from the air outlet is vertically changed in the air outlet. In an air conditioner equipped with an up-and-down air direction control plate that is controlled by the direction, it is provided in the air passage between the blower and the up-and-down air direction control plate so that a part of the wind flowing through this air passage is blown sideways. Is provided with a wind direction guide that is directed downward of the vertical wind direction control plate.

  In the air conditioner according to the present invention, the air conditioner according to the present invention is provided in the air passage between the blower and the up-and-down air direction control plate, and a part of the wind flowing through the air passage is controlled so that the air direction is laterally blown. Because the wind direction guide is directed to the lower side of the vertical wind direction control plate, the part of the wind flowing through the wind path is directed to the lower side of the vertical wind direction control plate when the wind direction is controlled to be laterally blown. The air flow toward the lower side of the vertical airflow direction control plate can block the moist air in the room coming from the lower part of the casing toward the vertical airflow direction control plate, and the moist air becomes the vertical airflow direction control plate. Can be prevented. For this reason, there is no condensation on the up / down airflow direction control plate during cooling, and the reliability can be improved.

It is sectional drawing of the side view which shows roughly the whole structure of the air conditioner which concerns on Embodiment 1 of this invention. It is sectional drawing of the side view which shows the air flow in the air conditioner which concerns on Embodiment 1 of this invention. It is sectional drawing of the side view which shows schematically the whole structure of the air conditioner which concerns on Embodiment 2 of this invention. It is sectional drawing of the side view which shows schematically the whole structure of the air conditioner which concerns on Embodiment 3 of this invention. (A) which shows the state which removed the assembly of the wind direction guide part of the air conditioner which concerns on Embodiment 4 of this invention, (a) is an exploded view, (b) is an exploded perspective view. It is sectional drawing of the side view which shows the air flow of the air conditioner of the comparative example without a wind direction guide.

Embodiment 1. FIG.
FIG. 1 is a side sectional view schematically showing the overall configuration of an air conditioner according to Embodiment 1 of the present invention. As shown in FIG. 1, the air conditioner according to Embodiment 1 of the present invention cools the front panel 2, the intake port 3 for taking in indoor air, and the indoor air taken in from the intake port 3 into the housing 1 of the indoor unit. Alternatively, the heat exchangers 4, 5, 6 to be heated, the air outlet 7 that returns the air heat-exchanged by the heat exchangers 4, 5, 6 to the room, the air is taken in from the air inlet 3 and the air from the air outlet 7 to the room A blower for blowing out the heat-exchanged air, for example, a cross flow fan 8 is provided.

  The air passage 9 extending from the cross flow fan 8 to the air outlet 7 is composed of a stabilizer guide 10 and a rear wall, that is, a rear guide 11 formed in a curved surface convex rearward along the air flow direction. At the air outlet 7 of the air passage 9, an up / down air direction control plate 12 for controlling the air direction sent from the air outlet 7 to the outside in the vertical direction is installed. In addition, a left and right air direction control plate 13 that controls the air direction sent from the air outlet 7 to the outside in the left and right direction is disposed upstream of the up and down air direction control plate 12 of the air passage 9, and below that is a wind direction guide. 14 is arranged. In addition, the up-and-down air direction control board 12 is controlled by the side blowing attitude | position (horizontal direction) at the time of air_conditionaing | cooling operation, for example.

  The wind direction guide 14 has a warp shape along the curved surface of the rear guide 11, and a forward extension line 16 (shown by a one-dot chain line in FIG. 1) of the warp line is such that the wind direction is a horizontal blow. The inclination at the time of installation is adjusted so as to be positioned below the up / down air direction control plate 12 when being controlled, and is formed on the rear guide 11 so as to extend from the rear guide front end 15 to the upstream side of the air flow. ing. As a result, the air outlet portion of the air flowing in the space between the wind direction guide 14 and the rear guide 11 can be brought closer to the vertical wind direction control plate 12, and the blow flow 19 from the rear guide front end 15 can be easily changed to the vertical wind direction. It can reach the lower surface of the control plate 12.

  Next, the operation of the air conditioner according to Embodiment 1 of the present invention will be described based on FIG. 2 and compared with the comparative example shown in FIG. FIG. 2 is a sectional view in side view showing the air flow in the first embodiment of the present invention. FIG. 6 is a cross-sectional view in side view showing the air flow of a comparative example without a wind direction guide. First, room air is sucked from the suction port 3, flows through the heat exchangers 4, 5, 6 and the cross flow fan 8 to the blowout port 7, and is sent out from the blowout port 7. At this time, due to the suction effect by the blowout flow, a humid air flow 17 in the room from the lower side of the housing 1 toward the blowout port 7 is generated.

  In the comparative example of FIG. 6 without the wind direction guide, when the air flow 18 near the rear guide 11 becomes weak, the air flow 18 does not flow to the rear guide front end 15 and is separated from the rear guide 11. For this reason, the room | chamber moist air flow 17 which goes to the blower outlet 7 from the downward direction of the housing 1 will reach | attain the up-and-down wind direction control board 12. FIG.

  On the other hand, in the air conditioner according to the first embodiment of the present invention, the flow of the air flowing through the space between the wind direction guide 14 and the rear guide 11 is improved in straightness due to the rectifying action by the wind direction guide 14, and the rear The blowing flow 19 from the guide front end 15 reaches the lower surface of the vertical air direction control plate 12 and forms an air flow film below the vertical air direction control plate 12. For this reason, it is possible to prevent the humid air flow 17 in the room from the lower part of the housing 1 toward the outlet 7 from reaching the up-and-down air direction control plate 12, and to prevent condensation on the up-and-down air direction control plate 12 during cooling. it can. As a result, dripping of the dew condensation liquid from the air conditioner can be eliminated during long-term use.

  Further, in the case of the comparative example of FIG. 6 without the wind direction guide, the blowout flow from the rear guide front end 15 drifts to the left and right when blowing left and right, and due to this drift, the humid air flow 17 in the room from below the housing of the blowout port 7. This air flow 17 may reach the up-down air direction control plate 12.

  On the other hand, in the air conditioner according to Embodiment 1 of the present invention, the wind direction guide 14 is disposed below the left and right wind direction control plate 13 as shown in FIGS. The blowout flow 19 from the front end 15 is not affected by the right and left wind direction flow, but is blown frontward. For this reason, the humid air flow 17 in the room from the lower part of the housing 1 toward the air outlet 7 does not easily reach the up-and-down air direction control plate 12, and condensation of the up-and-down air direction control plate 12 during cooling can be prevented. As a result, dripping of the dew condensation liquid from the air conditioner can be eliminated during long-term use.

Embodiment 2. FIG.
FIG. 3 is a side sectional view schematically showing the overall configuration of an air conditioner according to Embodiment 2 of the present invention. The same functional parts as those in Embodiment 1 are given the same reference numerals, Some explanations are omitted. In the air conditioner according to Embodiment 2 of the present invention, as shown in FIG. The inclination at the time of installation is adjusted so that 16 (shown by a one-dot chain line in FIG. 3) is positioned below the up-and-down air direction control plate 12 when the air direction is controlled so as to be blown sideways. 11 is provided so as to extend from the rear guide front end 15 to the upstream side of the air flow.

  As described above, in the air conditioner according to Embodiment 2 of the present invention, the wind direction guide 14A is provided in parallel to the curved surface of the rear guide 11, and therefore air flowing in the space between the wind direction guide 14A and the rear guide 11 is used. The rectifying effect is improved, and the effect of preventing the decrease in the air volume and the noise can be expected.

Embodiment 3. FIG.
FIG. 4 is a side sectional view schematically showing the overall configuration of an air conditioner according to Embodiment 3 of the present invention. The same functional parts as those in Embodiment 1 are given the same reference numerals, Some explanations are omitted. As shown in FIG. 4, the air conditioner according to the third embodiment of the present invention uses the air opening area (airway cross-sectional area) of the space between the airflow direction guide 14 </ b> B and the rear guide 11 that is the back wall of the airway 9 as air. The flow direction guide 14B and the rear guide 11 constitute a nozzle by setting the opening area of the flow inlet side 20 to be larger than the opening area of the air flow outlet side 21. Moreover, the front side extension line 16 (shown by a one-dot chain line in FIG. 4) 16 of the warp line of the wind direction guide 14B is located below the up and down wind direction control plate 12 when the wind direction is controlled so as to blow sideways. Thus, the inclination at the time of installation is adjusted and provided on the rear guide 11 so as to extend from the rear guide front end 15 to the upstream side of the air flow.

  As described above, in the air conditioner according to Embodiment 3 of the present invention, since the nozzle is configured by the wind direction guide 14B and the rear guide 11, the blow-out flow 19 from the rear guide front end 15 can be speeded up and down It is possible to easily reach the lower surface of the wind direction control plate 12. For this reason, it can prevent more reliably that the damp air flow 17 in the room which goes to the blower outlet 7 from the lower part of the housing 1 reaches the up-and-down air direction control board 12, and prevents dew condensation of the up-and-down air direction control board 12 at the time of cooling can do. As a result, dripping of the dew condensation liquid from the air conditioner can be eliminated during long-term use.

Embodiment 4 FIG.
5 (a) and 5 (b) show a state in which the assembly of the wind direction guide part of the air conditioner according to Embodiment 4 of the present invention is removed, (a) is an exploded view, and (b) is an exploded perspective view. FIG. In the figure, the same functional parts as those of the first embodiment are denoted by the same reference numerals, and a part of the description is omitted. As shown in FIGS. 5 (a) and 5 (b), the air conditioner according to Embodiment 4 of the present invention is configured such that the rear guide 11 is separable in the front-rear direction. The wind direction control plate 12, the left and right wind direction control plate 13, and the wind direction guide 14 are configured as an integrated assembly 30.

  Thus, in the air conditioner according to Embodiment 4 of the present invention, the rear guide 11 is configured to be separable in the front-rear direction, the rear guide 11 on the front side, the up-down air direction control plate 12, and the left-right air direction control plate 13 are configured. Since the wind direction guide 14 and the wind direction guide 14 are configured as an integral assembly 30, the assemblability is improved and the efficiency of the assembling work can be improved.

  DESCRIPTION OF SYMBOLS 1 Housing, 2 Front panel, 3 Inlet, 4, 5, 6 Heat exchanger, 7 Outlet, 8 Cross flow fan (blower), 9 Air path, 10 Stabilizer guide, 11 Rear guide (Back wall of an air path) , 12 Vertical wind direction control plate, 13 Left and right wind direction control plate, 14, 14A, 14B Wind direction guide, 15 Rear guide front end, 16 Front extension line of warp line, 17, 18 Air flow, 19 Blowing flow, 20 Air flow inlet Side, 21 outlet side of air flow, 30 assembly.

Claims (7)

A heat exchanger and a blower are arranged in an air passage connecting the suction port and the air outlet in a housing having the air inlet and the air outlet, and the air direction sent from the air outlet to the outside is vertically changed in the air outlet. In an air conditioner equipped with an up-and-down air direction control plate that controls by direction,
Below the upper and lower airflow direction control plate, which is provided in an air passage between the blower and the upper and lower airflow direction control plate, and controls a part of the wind flowing through the air passage so that the airflow is laterally blown. An air conditioner provided with a wind direction guide directed to the air. The back wall between the blower and the outlet of the air passage is formed in a curved surface that protrudes backward along the air flow direction,
The wind direction guide has a warp shape along the curved surface of the back wall of the air passage, and the front extension line of the warp line is controlled so that the wind direction is a side blow. The air conditioner according to claim 1, wherein the inclination at the time of installation is adjusted so as to be positioned below the vertical air direction control plate.   The air conditioner according to claim 2, wherein the wind direction guide is formed on the back wall of the air passage so as to extend from the front end thereof to the upstream side of the air flow.   The air conditioner according to claim 2 or 3, wherein the wind direction guide is provided in parallel with a curved surface of the back wall of the air path.   The opening area of the space between the wind direction guide and the back wall is set so that the opening area on the inlet side of the air flow is wider than the opening area on the outlet side. Item 3. An air conditioner according to item 3.   The left-right wind direction control board which controls the wind direction sent out from the said blower outlet outside in the left-right direction is further provided, The said wind direction guide has been arrange | positioned under this left-right wind direction control board. The air conditioner according to any one of the above.   The rear wall of the air passage is formed to be separable forward and backward, and the front rear wall, the up / down air direction control plate, the left / right air direction control plate, and the air direction guide are configured as an integral assembly. The air conditioner according to claim 6, wherein:

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