JP5963719B2 - Air conditioner indoor unit - Google Patents

Description

  The present invention relates to an indoor unit of an air conditioner.

  As an indoor unit of a conventional air conditioner, a housing in which an inlet and an outlet are formed, an air blower that is disposed inside the casing, sucks air from the inlet, and blows out from the outlet, What is provided with a heat exchanger disposed in the air path between the suction port and the air outlet on the inside, and a vertical air direction adjusting plate for adjusting the vertical air direction of the air flow blown from the air outlet. is there.

  The vertical direction wind direction adjusting plate has a base plate and a cover plate, and the base plate is formed on the outside of the first region and the first region where the cover plate is joined so as to form a hollow portion. 2nd area | region shape | molded by this. Since the air layer inside the hollow part formed in the first region functions as a heat insulating layer, dew condensation on the surface caused by cooling operation or the like is suppressed. Moreover, the air layer inside the bag part of a 2nd area | region functions as a heat insulation layer, and the dew condensation of the surface which arises by air_conditionaing | cooling operation etc. is suppressed (for example, refer patent document 1).

JP 11-37536 A (paragraph [0016] to paragraph [0026], FIGS. 1 to 5)

  In a conventional indoor unit of an air conditioner, the second region is formed from the upstream end of the base plate to the downstream end of the airflow in order to improve the rigidity of the vertical air direction adjusting plate. The In such a state, for example, when trying to make the tip narrower in order to suppress condensation at the tip caused by the entrainment of indoor air at the tip on the downstream side of the airflow of the vertical airflow direction adjustment plate during cooling operation, etc. The difficulty in molding or processing increases, and it becomes impossible to form a bag up to the tip on the downstream side of the air flow in the second region. As a result, it becomes impossible to suppress dew condensation occurring on the surface around the tip on the downstream side of the air flow in the second region.

  In other words, in the conventional air conditioner indoor unit, the downstream end of the airflow of the vertical air direction adjustment plate is thinned in the structure, and cannot be formed into a bag shape up to the end, and the condensation that occurs at the end There has been a problem that it is impossible to achieve both suppression and suppression of condensation occurring on the surface around the tip.

  The present invention has been made against the background of the above problems, and it is possible to achieve both suppression of condensation occurring at the front end of the vertical wind direction adjusting plate and suppression of condensation occurring on the surface around the front end. The purpose is to obtain an air conditioner indoor unit.

  An indoor unit of an air conditioner according to the present invention includes a casing in which an inlet and an outlet are formed, an air blower that is disposed inside the casing, sucks air from the inlet, and blows out from the outlet And a heat exchanger disposed in an air path between the suction port and the air outlet inside the housing, and a vertical direction for adjusting the vertical air direction of the air flow blown from the air outlet A wind direction adjusting plate, and the vertical direction wind direction adjusting plate has a base plate and a cover plate, and the base plate is joined to form a hollow portion of the cover plate, A second region formed outside the first region and shaped like a bag. The second region is formed on the upstream side of the airflow in the first region.

  In the indoor unit for an air conditioner according to the present invention, the vertical direction wind direction adjusting plate has a base plate and a cover plate, and the base plate is joined to form a hollow portion in the first region; A second region formed outside the first region and shaped like a bag, and the second region is formed on the upstream side of the air flow in the first region, so that the vertical wind direction is The narrowing of the tip of the adjustment plate on the downstream side of the airflow can be realized by reducing the thickness of the hollow portion of the first region without increasing the difficulty in molding or processing. Therefore, it is possible to achieve both suppression of condensation that occurs at the tip of the vertical air direction adjusting plate and suppression of condensation that occurs on the surface around the tip.

It is a disassembled perspective view of the indoor unit of the air conditioner according to Embodiment 1 of the present invention. It is sectional drawing of the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention. It is a perspective view of the drain pan assembly of the indoor unit of the air conditioner according to Embodiment 1 of the present invention. It is a figure explaining the support structure of the lower side outer side support part of the drain pan assembly of the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention. It is a figure explaining the support structure of the lower side center support part of the drain pan assembly of the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention. It is a figure explaining the airflow of the indoor unit of the air conditioner according to Embodiment 1 of the present invention. It is a disassembled perspective view of the lower up-down direction wind direction adjusting plate of the indoor unit of the air conditioner according to Embodiment 1 of the present invention. It is a perspective view of the periphery of the 2nd field of a base board of the indoor unit of the air harmony machine concerning Embodiment 1 of the present invention. It is sectional drawing of the base board of the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention. It is a perspective view of a cover board of the indoor unit of the air conditioner concerning Embodiment 1 of the present invention. It is sectional drawing in the state by which the cover board was joined to the base board of the lower side up-down direction wind direction adjustment board of the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention. It is sectional drawing in the state by which the cover board was joined to the base board of the lower side up-down direction wind direction adjustment board of the indoor unit of the air conditioner which concerns on Embodiment 2 of this invention.

Hereinafter, an indoor unit of an air conditioner according to the present invention will be described with reference to the drawings.
The configuration described below is an example, and the indoor unit of the air conditioner according to the present invention is not limited to such a configuration.
Moreover, in each figure, the same code | symbol is attached | subjected to the same or similar member or part, or attaching | subjecting code | symbol is abbreviate | omitted.
Further, the illustration of the fine structure is simplified or omitted as appropriate.
In addition, overlapping or similar descriptions are appropriately simplified or omitted.

Embodiment 1 FIG.
The indoor unit of the air conditioner according to Embodiment 1 will be described.
<Configuration of indoor unit of air conditioner>
Below, the structure of the indoor unit of the air conditioner which concerns on Embodiment 1 is demonstrated.

1 is an exploded perspective view of an indoor unit of an air conditioner according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of the indoor unit of the air conditioner according to Embodiment 1 of the present invention.
As shown in FIGS. 1 and 2, the indoor unit 1 includes a housing 2, a blower 3, a heat exchanger 4, a filter unit 5, an electrical component box 6, and a drain pan assembly 7. .

  The housing 2 includes, for example, a base 2a attached to an indoor wall surface, a frame 2b disposed in front of the base 2a, and a front panel 2c disposed in front of the frame 2b. Have. For example, a suction port 2d is formed on the upper surface of the housing 2, and an air outlet 2e is formed on the lower front surface. A rear guide 8 that constitutes a part of the air path between the suction port 2d and the blower outlet 2e and extends toward the blower outlet 2e is disposed in the lower front portion of the base 2a.

  The blower 3 is, for example, a cross-flow fan, and is arranged in the air path between the suction port 2d and the blower outlet 2e inside the housing 2 so that the rotation axis is parallel to the left-right direction of the indoor unit 1. Then, the room air is sucked in from the suction port 2d and blown out from the air outlet 2e.

  The heat exchanger 4 is, for example, a fin tube type, and is disposed in an air path between the suction port 2d and the air outlet 2e inside the housing 2 so as to cover the front and the upper side of the blower 3. . A refrigerant is supplied to the heat exchanger 4.

  The filter unit 5 is disposed, for example, in the suction port 2d. Note that the filter unit 5 may or may not have an automatic cleaning function.

  The electrical component box 6 is disposed, for example, inside the housing 2, and stores a control device 6 a that controls the indoor unit 1. The control device 6a is composed of, for example, a microprocessor unit. The control device 6a is not limited to such a configuration. For example, the control device 6a may be configured with updatable firmware or the like, or may be a program module or the like that is executed by a command from a CPU or the like.

  The drain pan assembly 7 is disposed, for example, at the lower front side inside the housing 2. The drain pan assembly 7 includes a nozzle portion 11, an upper support portion 12, a lower support portion 13, an upper vertical direction wind direction adjustment plate 14, and a lower vertical direction wind direction adjustment plate 15. The drain pan assembly 7 may or may not have a left-right air direction adjusting plate. The configuration of the lower vertical direction wind direction adjusting plate 15 will be described in detail later.

  The tip of the nozzle portion 11 extends to the vicinity of the blower 3, and the blower 3 is disposed between the tip of the nozzle portion 11 and the rear guide 8. The upper surface of the nozzle portion 11 functions as a drain pan that receives the dew condensation water of the heat exchanger 4 and constitutes a part of the air path between the suction port 2d and the blower 3. The lower surface of the nozzle portion 11 is the blower 3 And a part of the air passage between the air outlet 2e.

  The upper support portion 12 is disposed on the lower surface of the nozzle portion 11 and supports the upper vertical air direction adjustment plate 14. The lower support portion 13 is disposed on the lower surface of the nozzle portion 11 and supports the lower vertical air direction adjustment plate 15.

  FIG. 3 is a perspective view of the drain pan assembly of the indoor unit of the air conditioner according to Embodiment 1 of the present invention. 3A is a perspective view in a state where the upper vertical direction wind direction adjusting plate 14 and the lower vertical direction wind direction adjusting plate 15 are attached, and FIG. 3B is an upper vertical direction wind direction adjusting plate. FIG. 14 is a perspective view in a state where the lower vertical direction wind direction adjusting plate 15 is removed. Moreover, FIG. 3 has shown the case where the drain pan assembly 7 has a left-right direction wind direction adjusting plate.

  As shown in FIG. 3, the drain pan assembly 7 supports two lower vertical direction air direction adjustment plates 15 </ b> _ <b> 1 and 15 </ b> _ <b> 2 juxtaposed in the left-right direction of the indoor unit 1 by the lower support part 13. The lower support portion 13 includes, for example, lower outer support portions 13a_1 and 13a_2 and lower central support portions 13b_1 and 13b_2.

  The lower outer support portions 13a_1 and 13a_2 are disposed on the outer side in the left-right direction of the indoor unit 1, and support the outer ends of the lower vertical air direction adjusting plates 15_1 and 15_2 in the left-right direction of the indoor unit 1.

  The lower center side support portions 13b_1 and 13b_2 are formed on the center side in the left-right direction of the indoor unit 1, and support the ends of the lower vertical direction airflow direction adjusting plates 15_1 and 15_2 on the center side in the left-right direction of the indoor unit 1. To do. The lower center support portion 13b_1 and the lower center support portion 13b_2 may be integrated.

  FIG. 4 is a diagram illustrating a support structure for the lower outer support portion of the drain pan assembly of the indoor unit for an air conditioner according to Embodiment 1 of the present invention. 4 shows the support structure for the lower vertical air direction adjustment plate 15_1, the same applies to the support structure for the lower vertical air direction adjustment plate 15_2.

  As shown in FIG. 4, the lower outer support portions 13a_1 and 13a_2 incorporate a rotation mechanism 21 such as a stepping motor, for example. For example, a connecting portion 31 in which a cross-shaped hole 31a is formed is disposed on the lower vertical air direction adjustment plates 15_1 and 15_2. The output shaft 21 a of the rotation mechanism 21 is connected to the hole 31 a through the connecting member 22. The rotation angle of the output shaft 21a of the rotation mechanism 21 is controlled by the control device 6a, so that the vertical angle of the lower vertical direction wind direction adjusting plates 15_1 and 15_2 is adjusted.

  FIG. 5 is a diagram illustrating a support structure of the lower center support portion of the drain pan assembly of the indoor unit for an air conditioner according to Embodiment 1 of the present invention. FIG. 5 shows the support structure of the lower vertical air direction adjustment plate 15_1, but the same applies to the support structure of the lower vertical air direction adjustment plate 15_2.

  As shown in FIG. 5, a hole 13ba penetrating in the left-right direction of the indoor unit 1 is formed in the lower center support portions 13b_1 and 13b_2. A connecting portion 32 having a shaft member 32a is disposed on the lower vertical air direction adjusting plates 15_1 and 15_2. The shaft member 32a can slide in the arrow direction in the figure. When the shaft member 32a is slid in the direction of the solid arrow in the figure by a user, a maintenance worker, etc., the tip of the shaft member 32a is inserted into the hole 13ba, and the lower vertical air direction adjustment plates 15_1 and 15_2 are Supported by the lower support portion 13. When the shaft member 32a is slid in the direction of the dotted arrow in the figure by a user, a maintenance worker, or the like, the lower vertical direction wind direction adjusting plates 15_1 and 15_2 are detached from the lower support portion 13. With such a configuration, it becomes possible for a user, a maintenance worker, etc. to remove and clean the lower vertical air direction adjustment plates 15_1 and 15_2.

Below, the airflow of the indoor unit 1 of an air conditioner will be described.
FIG. 6 is a diagram illustrating airflow of the indoor unit of the air conditioner according to Embodiment 1 of the present invention. FIG. 6 shows a state in which the indoor unit 1 performs horizontal blowing during cooling operation.

  As shown in FIG. 6, the indoor air sucked from the suction port 2 d is cooled or heated by passing through the heat exchanger 4, and after passing between the rear guide 8 and the lower surface of the nozzle portion 11, From the blower outlet 2e, it blows off in the direction according to the angle of the upper side up-down direction wind direction adjusting plate 14 and the lower side up-down direction wind direction adjusting plate 15.

  In the indoor unit 1, since the up / down direction wind direction adjusting plate is composed of the upper up / down direction wind direction adjusting plate 14 and the lower up / down direction wind direction adjusting plate 15, the upper up / down direction wind direction adjusting plate 14 and the lower up / down direction wind direction adjusting plate 15. 15 is adjusted to an angle such that the distance between the lower surface of the upper vertical air direction adjusting plate 14 and the upper surface of the lower vertical air direction adjusting plate 15 becomes narrower toward the downstream side of the air flow, and the cooling air or the heated air is moved far away. It is possible to blow out.

  Further, in the indoor unit 1, the lower vertical air direction adjustment plate 15 is on the extended surface of the rear guide 8, that is, on the extended surface of the lower surface of the air passage between the suction port 2d and the air outlet 2e. A large amount of cooling air can be introduced between the lower surface of the upper vertical air direction adjustment plate 14 and the upper surface of the lower vertical air direction adjustment plate 15 when performing horizontal blowing during the cooling operation.

  That is, in the indoor unit 1, in order to improve the cooling performance when performing horizontal blowing during the cooling operation, the lower vertical air direction adjustment plate 15 has at least a part of the lower surface of the suction port 2d during the cooling operation. It is supported by the lower side support part 13 so that it may be located under the extended surface of the air path between the air outlet 2e.

  However, if such a configuration is adopted, in horizontal blowing during cooling operation, the cooling air hardly passes the lower surface side of the lower vertical air direction adjusting plate 15, and the upper surface of the lower vertical air direction adjusting plate 15 is In the state cooled by the cooling air, the lower surface of the lower vertical air direction adjusting plate 15 comes into contact with the room air, and condensation occurs on the lower surface of the lower vertical air direction adjusting plate 15.

  Therefore, the lower vertical air direction adjusting plate 15 is hollow, and an air layer that functions as a heat insulating layer is formed inside the hollow portion. The upper vertical air direction adjusting plate 14 is not hollow because the cooling air passes through the upper surface side and the lower surface side in the horizontal blowing during the cooling operation, and it is difficult for condensation to occur. Also good. Further, the upper vertical air direction adjusting plate 14 may be supported at a position where the cooling air hardly passes through the upper surface side in the horizontal blowing during the cooling operation.

  Further, even if the lower vertical air direction adjusting plate 15 is hollow and an air layer functioning as a heat insulating layer is formed inside the hollow portion, the lower vertical air direction adjusting plate 15 on the downstream side of the air flow. When the tip is thick, the indoor air is entrained on the downstream side of the air flow at the tip, and condensation occurs at the tip.

  Therefore, the tip of the lower vertical air direction adjusting plate 15 is made narrower in order to suppress condensation that occurs at the tip on the downstream side of the airflow.

  In a conventional air conditioner indoor unit, if the tip of the vertical air direction adjusting plate is made thin and the tip is made hollow, the difficulty in molding or processing increases. In addition, it was impossible to achieve both suppression of dew condensation occurring at the tip of the lower vertical air direction adjusting plate 15 and suppression of dew condensation occurring on the surface around the tip.

  On the other hand, since the indoor unit 1 employs the lower vertical air direction adjusting plate 15 having the following configuration, the front end of the vertical air direction adjusting plate is thinned and the front end is hollow. This can be realized without increasing the difficulty in molding or processing, so that the suppression of condensation that occurs at the tip of the lower vertical wind direction adjusting plate 15 and the suppression of condensation that occurs on the surface around the tip are It is possible to achieve both.

(Configuration of lower vertical wind direction adjustment plate)
Below, the structure of the lower up-down direction wind direction adjusting plate of the indoor unit of the air conditioner according to Embodiment 1 will be described.

  FIG. 7 is an exploded perspective view of the lower vertical air direction adjusting plate of the indoor unit of the air conditioner according to Embodiment 1 of the present invention. FIG. 7 shows an exploded perspective view of the lower vertical direction wind direction adjusting plate 15_1, but the same applies to the exploded perspective view of the lower vertical direction wind direction adjusting plate 15_2.

  As shown in FIG. 7, the lower vertical air direction adjustment plate 15 includes a base plate 41 and a cover plate 42. The base plate 41 and the cover plate 42 are made of resin, for example, and are molded by injection molding or the like. The base plate 41 and the cover plate 42 are bonded by, for example, ultrasonic bonding so that the back surfaces of the base plate 41 and the cover plate 42 face each other.

  The base plate 41 includes a first region 51 to which the cover plate 42 is joined, and an outer second portion that extends outside the first region 51 without being joined to the cover plate 42 and is located outside the indoor unit 1 in the left-right direction. The area 52 a and the center side second area 52 b that is not joined and extends outside the first area 51 and is located on the center side in the left-right direction of the indoor unit 1. In the following, the outer second region 52a and the central second region 52b may be collectively referred to as the second region 52.

  The second region 52 is located on the upstream side of the air flow in the first region 51. The connecting portion 31 is disposed in the outer second region 52a. The connecting portion 32 is disposed in the center-side second region 52b.

  FIG. 8 is a perspective view of the periphery of the second region of the base plate of the indoor unit for an air conditioner according to Embodiment 1 of the present invention. FIG. 9 is a cross-sectional view of the base plate of the indoor unit for an air conditioner according to Embodiment 1 of the present invention. 9A is a cross-sectional view taken along the line AA in FIG. 7, and FIG. 9B is a cross-sectional view taken along the line BB in FIG. 8 and 9B show a perspective view and a cross-sectional view of the periphery of the outer second region 52a, but the same applies to a perspective view and a cross-sectional view of the periphery of the central second region 52b. .

  As shown in FIGS. 8 and 9, a step 62 is formed on the upper surface of the wall surface 61 on the upstream side of the airflow on the back surface of the first region 51. Ribs 63 are formed on the back surface of the first region 51 on the periphery of the region not adjacent to the second region 52.

  The second region 52 has a bag portion 71. That is, the second region 52 is formed into a bag shape. The bag portion 71 includes a wall surface 72 that extends from the back surface of the first region 51, a wall surface 73 that faces the wall surface 72, and side wall surfaces 74, 75, and 76 that block three directions between the wall surface 72 and the wall surface 73. Surrounded, a space is formed such that one direction between the wall surface 72 and the wall surface 73 becomes the opening 77. The bag part 71 of the outer second region 52a and the bag part 71 of the central second region 52b are formed in a direction in which the openings 77 face each other. That is, the bag portion 71 is formed so that the opening portion 77 faces the center side in the left-right direction of the lower vertical direction airflow direction adjusting plate 15. On the wall surface 73, notes and the like when the lower vertical air direction adjusting plate 15 is attached and detached may be written.

  A step 78 extending from the step 62 is formed at the periphery of the second region 52 adjacent to the first region 51 of the wall surface 73 of the bag portion 71. That is, the step 78 is formed on the surface of the second region 52 that is aligned with the surface (front surface) on the back side of the surface facing the first region 51 of the cover plate 42.

  The connection part 31 and the connection part 32 are arrange | positioned above the side wall surfaces 74, 75, and 76 from a rigid viewpoint. Further, when the indoor unit 1 is controlled to close the air outlet 2e by the upper vertical air direction adjusting plate 14 and the lower vertical air direction adjusting plate 15 when the operation is stopped, the connecting unit 31 and the connecting unit 32 are used. Is disposed on the wall surface (wall surface 73) of the second region 52 on the side that does not become the appearance surface when the operation is stopped. With such a configuration, even when the connecting portion 31 and the connecting portion 32 are molded integrally with the base plate 41 and are increased in size or thickness from the viewpoint of rigidity, the appearance when the operation is stopped The occurrence of sink marks on the surface is suppressed.

FIG. 10 is a perspective view of the cover plate of the indoor unit for an air conditioner according to Embodiment 1 of the present invention.
As shown in FIG. 10, on the back surface of the cover plate 42, ribs 81 are formed over the entire circumference at positions having a predetermined interval from the periphery. The tip of the rib 81 is preferably sharp.

  FIG. 11 is a cross-sectional view of the indoor unit of the air conditioner according to Embodiment 1 of the present invention in a state where the cover plate is joined to the base plate of the lower vertical air direction adjusting plate. 11A is a cross-sectional view taken along line AA in FIG. 7, FIG. 11B is an enlarged view of a portion D in FIG. 11A, and FIG. 11A is an enlarged view of a portion E in FIG. 11A, and FIG. 11D is a cross-sectional view of the periphery of the outer second region 52 a taken along the line CC in FIG. 7. FIG. 11D shows a cross-sectional view around the outer second region 52a, but the same applies to a cross-sectional view around the central second region 52b.

  As shown in FIGS. 11A to 11C, the base plate 41 and the cover plate 42 are configured such that the periphery of the cover plate 42 is the outer wall surface of the step 62 in the first region 51 of the base plate 41 and the rib 63. It is positioned so as to be located inside. That is, since the step 62 and the rib 63 are formed on the base plate 41, the workability and accuracy of positioning the base plate 41 and the cover plate 42 are improved. At that time, the tips of the ribs 81 formed on the back surface of the cover plate 42 come into contact with the back surface of the first region 51 of the base plate 41.

  In this state, when the base plate 41 and the cover plate 42 are pressed so as to approach each other and ultrasonic vibration is applied, the tip of the rib 81 and the back surface of the first region 51 of the base plate 41 are melted by frictional heat and joined. Is done. Since the rib 81 is formed on the entire back surface of the cover plate 42, a sealed hollow portion 43 is formed between the base plate 41 and the cover plate 42.

  Further, as shown in FIG. 11D, since the step 78 of the second region 52 of the base plate 41 receives the region outside the region where the rib 81 of the cover plate 42 is formed, the opening of the bag portion 71 The portion 77 is blocked and the hollow portion 44 is formed. Since the connecting portion 31 and the connecting portion 32 are disposed in the second region 52, it is difficult to apply a horn for applying ultrasonic vibration, but the hollow portion 44 is blocked regardless of ultrasonic bonding. The workability of joining is improved.

  Since the bag part 71 has the side wall surfaces 74, 75, and 76 in three directions, that is, the side wall surface 74 is formed in the second region 52, the rib 81 of the cover plate 42 is formed during ultrasonic bonding. By pressing the area outside the area where the gap is formed against the step 78, the surface of the step 78 is prevented from being bent and a gap is suppressed. Further, when the lower vertical wind direction adjusting plate 15 is supported by the lower support portion 13, the surface of the step 78 is suppressed from being bent and a gap is suppressed. Therefore, the hollow part 44 becomes a substantially sealed hollow part.

<Operation of air conditioner indoor unit>
Below, the effect | action of the indoor unit of the air conditioner which concerns on Embodiment 1 is demonstrated.
The lower vertical air direction adjustment plate 15 has a base plate 41 and a cover plate 42, and is joined to the downstream side of the airflow of the hollow portion 44 formed by the bag portion 71 by joining the base plate 41 and the cover plate 42. The hollow part 43 to be formed is located. When the thickness of the hollow portion 43 formed by joining the base plate 41 and the cover plate 42 is reduced, the distance between the base plate 41 and the cover plate 42 may be narrowed. There is no need to reduce the thickness itself. Therefore, it is possible to reduce the tip of the lower vertical airflow direction adjusting plate 15 on the downstream side of the air flow and make the tip hollow, so that the difficulty in molding or processing does not increase. It can be realized by reducing the thickness of the hollow portion 43, and it is possible to achieve both suppression of condensation occurring at the front end of the vertical air direction adjusting plate and suppression of condensation occurring on the surface around the front end.

  In particular, the lower vertical air direction adjusting plate 15 is positioned so that at least a part of the lower surface thereof is located below the extended surface of the air passage between the suction port 2d and the outlet 2e during the cooling operation. Even in the case of being supported by the side support portion 13, it is possible to achieve both suppression of condensation occurring at the front end of the vertical air direction adjusting plate and suppression of condensation occurring on the surface around the front end.

Embodiment 2. FIG.
An indoor unit of an air conditioner according to Embodiment 2 will be described.
Note that, in the following, descriptions that overlap or are similar to those of the first embodiment are appropriately simplified or omitted.

<Configuration of indoor unit of air conditioner>
Below, the structure of the indoor unit of the air conditioner which concerns on Embodiment 2 is demonstrated.

(Configuration of lower vertical wind direction adjustment plate)
Below, the structure of the lower up-down direction wind direction adjusting plate of the indoor unit of the air conditioner according to Embodiment 2 will be described.

  FIG. 12 is a cross-sectional view of the lower vertical air direction adjusting plate of the indoor unit for an air conditioner according to Embodiment 2 of the present invention with the cover plate joined to the base plate. 12 is a cross-sectional view of the periphery of the outer second region 52a taken along line CC in FIG. In addition, FIG. 12 shows a cross-sectional view around the outer second region 52a, but the same applies to a cross-sectional view around the center-side second region 52b.

  As shown in FIG. 12, a heat insulating material 45 is disposed on all or part of the hollow portion 44.

<Operation of air conditioner indoor unit>
Below, the effect | action of the indoor unit of the air conditioner which concerns on Embodiment 2 is demonstrated.
The hollow portion 44 is formed by closing the opening 77 of the bag portion 71 with the cover plate 42, but the outside of the region where the rib 81 of the cover plate 42 is formed due to the lack of rigidity of the second region 52. In some cases, there is a gap between the region and the step 78. In such a case, the heat insulation performance is degraded. In the lower vertical direction wind direction adjusting plate 15, since the heat insulating material 45 is disposed on all or part of the hollow portion 44, even in such a case, it is suppressed that the heat insulating performance is reduced, and the second region 52. Suppression of dew condensation occurring on the surface of the glass is ensured.

  In the indoor unit of the air conditioner according to the first embodiment, a hollow sealed between the base plate 41 and the cover plate 42 by the ribs 81 formed on the back surface of the cover plate 42 over the entire circumference. Although the portion 43 is formed, the rib 81 may be formed intermittently. In such a case, the sealing performance of the hollow portion 43 may be insufficient. Even in such a case, similarly to the hollow portion 44, the heat insulating material 45 may be disposed on all or part of the hollow portion 43.

  As mentioned above, although Embodiment 1 and Embodiment 2 were demonstrated, this invention is not limited to description of each embodiment. For example, it is possible to combine all or some of the embodiments.

  DESCRIPTION OF SYMBOLS 1 Indoor unit, 2 housing | casing, 2a base, 2b frame, 2c front panel, 2d suction inlet, 2e blower outlet, 3 air blower, 4 heat exchanger, 5 filter unit, 6 electrical component box, 6a control apparatus, 7 Drain pan assembly, 8 Rear guide, 11 Nozzle part, 12 Upper support part, 13 Lower support part, 13a_1, 13a_2 Lower outer support part, 13b_1, 13b_2 Lower central support part, 13ba hole, 14 Upper vertical direction Adjustment plate, 15, 15_1, 15_2 Lower vertical wind direction adjustment plate, 21 rotation mechanism, 21a output shaft, 22 connection member, 31 connection portion, 31a hole, 32 connection portion, 32a shaft member, 41 base plate, 42 cover Plate, 43 hollow portion, 44 hollow portion, 45 heat insulating material, 51 first region, 52 second region, 52a outer second region, 52b central second region , 61 wall surface, 62 step, 63 rib, 71 bag portion, 72, 73 wall surface, 74-76 side wall surface, 77 opening, 78 step, 81 rib.

Claims (7)

A housing in which an inlet and an outlet are formed;
A blower that is disposed inside the housing, sucks air from the suction port, and blows out from the blowout port;
A heat exchanger disposed in an air path between the suction port and the air outlet, inside the housing;
An up-down direction air direction adjusting plate that adjusts the up-down direction air direction of the air flow blown from the air outlet,
The vertical air direction adjustment plate has a base plate and a cover plate,
The base plate has a first region joined so that the cover plate forms a hollow portion, and a second region formed outside the first region and shaped like a bag,
The second region is formed on the upstream side of the airflow of the first region,
An air conditioner indoor unit. On the surface of the cover plate facing the first region, a rib whose tip abuts on the first region is formed.
The indoor unit of the air conditioner according to claim 1. The rib is formed over the entire circumference of the cover plate,
The indoor unit of the air conditioner according to claim 2, wherein the indoor unit is an air conditioner. On the base plate, a step is formed to receive a region where the rib is not formed on the surface of the cover plate facing the first region.
The indoor unit of an air conditioner according to claim 2 or 3, The cover plate has engaged ultrasonic Namise' to the first region,
The indoor unit of the air conditioner as described in any one of Claims 1-4 characterized by the above-mentioned. A heat insulating material is disposed in the bag portion of the second region,
The indoor unit of an air conditioner according to any one of claims 1 to 5, wherein the indoor unit is an air conditioner. The vertical direction air direction adjusting plate is located at the lower side of the extended surface of the air path at least part of the lower surface during cooling operation.
The indoor unit of an air conditioner according to any one of claims 1 to 6, wherein the indoor unit is an air conditioner.

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