WO2018173141A1 - Indoor unit of air-conditioner - Google Patents

Abstract

According to the present invention, an air-flow direction adjustment plate adjusts the vertical direction of air blown out from the outlet of this indoor unit of an air-conditioner. The air-flow direction adjustment plate has a base plate formed of a long member, and a plurality of cover plates each formed of a long member. Each of the cover plates is disposed on the base plate so as to have the longitudinal direction thereof set parallel to the longitudinal direction of the base member and to be adjacent to another one of the cover plates. The longitudinal lengths of the cover plates are shorter than the longitudinal length of the base plate, and the total of the longitudinal lengths of the cover plates is equal to the longitudinal length of the base plate. Among the cover plates, the opposing ends of the cover plates adjacent to each other are welded to each other. The left end of each of the cover plates disposed in the left region of the base plate and the left end of the base plate are welded to each other. The right end of each of the cover plates disposed in the right region of the base plate and the right end of the base plate are welded to each other.

Description

Air conditioner indoor unit

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

Conventionally, there are air conditioner indoor units that include a casing, a blower, a heat exchanger, and a vertical wind direction plate. A suction port and an air outlet are formed in the housing. The blower is disposed inside the housing, and is configured to blow out air sucked from a suction port of the housing from an air outlet of the housing. The heat exchanger is disposed in an air path between the suction port and the blower outlet inside the housing. The casing is provided with an up / down air direction plate that adjusts the up / down direction of the airflow blown out from the air outlet into the air-conditioned space. For example, an up-and-down wind direction plate described in Patent Document 1 includes a base plate and a cover plate, and the base plate is welded to the cover plate so that the cover plate forms a hollow portion.

JP 2015-31454 A

The base plate and the cover plate of the up-and-down wind direction plate of Patent Document 1 are long members, and are arranged so that the longitudinal direction extends in the left-right direction of the housing. Therefore, a deviation may occur when the base plate is welded to the cover plate. When the deviation occurs, there is a possibility that, for example, a lack of welding, which is not partly welded, may occur, and the yield may be deteriorated.

The present invention has been made to solve the above-described problems, and by suppressing the occurrence of welding misalignment and insufficient welding of each member constituting the up-and-down wind direction plate, the yield is improved, and the assembling property is improved. The indoor unit of the air conditioner which has an up-and-down wind direction board excellent in the is provided.

An indoor unit of an air conditioner according to the present invention includes a housing in which a suction port and an air outlet are formed, and an air conditioner that is disposed inside the housing, sucks air from the suction port, and blows air that has been conditioned. A blower that blows out from the outlet, a heat exchanger disposed in an air path between the suction port and the blower outlet inside the casing, and a vertical wind direction of the air blown from the blower outlet A wind direction adjusting plate for adjusting, and the wind direction adjusting plate has a base plate of a long member and a plurality of cover plates of the long member, and each of the plurality of cover plates has a base in the longitudinal direction. It is disposed on the base plate so as to be along the longitudinal direction of the plate and adjacent to the other cover plate of the plurality of cover plates, and the length in the longitudinal direction of each of the plurality of cover plates is Shorter than the length in the longitudinal direction of the base plate, and the plurality of covers The total length in the longitudinal direction of each of the plates is equal to the length in the longitudinal direction of the base plate, and in the plurality of cover plates, the facing end portions of the adjacent cover plates are welded together, A first cover plate disposed on one end side of both end portions of the base plate in the longitudinal direction of the base plate, a first end portion on the one end portion side of the base plate, and The base plate of the second cover plate that is welded to the one end portion of the base plate and is disposed on the other end side of both end portions in the longitudinal direction of the base plate among the plurality of cover plates. The second end portion on the other end portion side and the other end portion of the base plate are welded.

According to the indoor unit of the air conditioner according to the present invention, in the wind direction adjusting plate, a plurality of cover plates, which are members whose length in the longitudinal direction is shorter than the base plate, are arranged on the base plate and welded to the base plate, respectively. Has been. Therefore, compared with the case where a cover plate having the same length in the longitudinal direction as the base plate is disposed and welded to the base plate, occurrence of welding displacement and insufficient welding is suppressed. As a result, the yield in the wind direction adjusting plate is improved.

It is a perspective view of the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention. It is sectional drawing of the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention. It is a disassembled perspective view of the lower up-and-down wind direction board of the indoor unit of the air conditioner concerning Embodiment 1 of the present invention. It is a perspective view of the lower up-and-down wind direction board of the indoor unit of the air conditioner concerning Embodiment 1 of the present invention. It is sectional drawing of the lower vertical wind direction board of the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the junction part of the cover board in the lower side up-down wind direction board of the indoor unit of the air conditioner concerning Embodiment 1 of this invention. It is a figure which decomposes | disassembles and shows the cross section of the junction part of the cover board in the lower side up-down wind direction board of the indoor unit of the air conditioner concerning Embodiment 2 of this invention. It is a figure which shows the cross section of the junction part of the cover board in the lower side up-down wind direction board of the indoor unit of the air conditioner concerning Embodiment 2 of this invention. It is a figure which decomposes | disassembles and shows the cross section of the junction part of the cover board in the lower side up-down wind direction board of the indoor unit of the air conditioner which concerns on Embodiment 3 of this invention. It is a figure which shows the cross section of the junction part of the cover board in the lower side up-down wind direction board of the indoor unit of the air conditioner concerning Embodiment 3 of this invention.

Hereinafter, embodiments of an indoor unit for an air conditioner according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiments described below. In the following drawings, the size of each component may be different from that of an actual apparatus.

Embodiment 1 FIG.
FIG. 1 is a 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. The indoor unit 100 includes a housing 1, a blower 2, a heat exchanger 3, a filter 4, an outlet assembly 5, and a front panel 6. The front panel 6 is disposed in front of the housing. The suction port 1 a is formed in the upper surface of the housing 1, and the air outlet 1 b is formed in the lower front portion of the housing 1. The blower 2 is disposed inside the housing 1. The air blower 2 is disposed between the air outlet assembly 5 and the rear guide 7 in the air path between the air inlet 1a and the air outlet 1b. The blower 2 sucks indoor air from the suction port 1a and blows out air-conditioned air from the blower outlet 1b. The heat exchanger 3 is, for example, a fin tube type heat exchanger, and is disposed in an air path between the suction port 1 a and the blower port 1 b inside the housing 1. The heat exchanger 3 is supplied with a refrigerant.

The blower outlet assembly 5 is disposed in the suction port 1a. The blower outlet assembly 5 is provided with an upper vertical wind direction plate 8 and a lower vertical wind direction plate 9 that adjust the vertical direction of the air blown from the blower outlet 1b. The lower vertical wind direction plate 9 is a wind direction adjusting plate in the present invention.

FIG. 3 is an exploded perspective view of the lower vertical wind direction plate of the indoor unit of the air conditioner according to Embodiment 1 of the present invention. FIG. 4 is a perspective view of the lower vertical wind direction plate of the indoor unit of the air conditioner according to Embodiment 1 of the present invention. FIG. 5 is a cross-sectional view of the lower vertical wind direction plate of the indoor unit of the air conditioner according to Embodiment 1 of the present invention. 3 and 4 show the lower vertical wind direction plate 9 from the front side of the indoor unit 100. The lower vertical wind direction plate 9 includes a base plate 10, a cover plate 20, and a cover plate 30. The base plate 10 is a long member, and is a thin plate member having a rectangular shape as a whole. On the outer edge portion of the base plate 10, convex ribs 11 protruding upward are formed over the entire circumference. A connecting portion 12 and a connecting portion 13 are provided at the left end and the right end in the longitudinal direction of the base plate 10, respectively. In addition, a connecting portion 14 is provided in the center portion of the base plate 10 in the longitudinal direction. The base plate 10 is attached to the housing 1 via the connecting portions 12, 13, and 14. FIG. 5 is a cross-sectional view of the lower vertical wind direction plate 9 shown in FIG. 4 cut at a position slightly to the right of the connecting portion 14.

The left end of the base plate 10 is one end of both ends in the longitudinal direction of the base plate of the present invention. The right end portion of the base plate 10 is the other end portion of both end portions in the longitudinal direction of the base plate of the present invention. The cover plate 20 is the first cover plate of the present invention, and is one of the adjacent cover plates. The cover plate 30 is the second cover plate of the present invention, and is the other cover plate of the adjacent cover plates.

The cover plate 20 is a thin plate-like member having a rectangular shape as a whole. Similarly, the cover plate 30 is a thin plate-like member having a rectangular shape as a whole. The cover plate 20 is disposed in a region on the left end side of the base plate 10 when viewed from the front surface of the indoor unit 100, and the cover plate 30 is on the right end portion side of the base plate 10 when viewed from the front surface of the indoor unit 100. It is arranged in the area. That is, the cover plate 20 and the cover plate 30 are disposed adjacent to each other on the base plate 10 so that the right end 22 of the cover plate 20 and the left end 31 of the cover plate 30 face each other. The length of the cover plate 20 in the longitudinal direction is about ½ of the length of the base plate 10 in the longitudinal direction. The length of the cover plate 30 in the longitudinal direction is about ½ of the length of the base plate 10 in the longitudinal direction. That is, the total length of the cover plate 20 in the longitudinal direction and the length of the cover plate 30 in the longitudinal direction is equal to the length of the base plate 10 in the longitudinal direction.

The cover plate 20 and the cover plate 30 are positioned from the upper side of the base plate 10, and the base plate 10, the cover plate 20, and the cover plate 30 are joined by ultrasonic welding. As shown in FIG. 4, the cover plate 20 and the cover plate 30 are joined by ultrasonic welding the right-side end 22 in the longitudinal direction of the cover plate 20 and the left-side end 31 in the longitudinal direction of the cover plate 30. Yes. The right end 32 in the longitudinal direction of the cover plate 30 is in contact with the inner peripheral surface facing the inside of the lower vertical wind direction plate 9 at the right end of the rib 11 of the base plate 10. As shown in FIG. 5, the front end 33 of the cover plate 30 is in contact with the inner peripheral surface facing the inside of the lower vertical wind direction plate 9 at the front end of the rib 11 of the base plate 10. The cover plate 30 and the base plate 10 are joined by ultrasonic welding of the right end portion 32 and the front end portion 33 of the cover plate 30 and the rib 11 of the base plate 10. The left end 21 in the longitudinal direction of the cover plate 20 is in contact with the inner peripheral surface facing the inside of the lower vertical wind direction plate 9 at the left end of the rib 11 of the base plate 10. The front end portion 23 of the cover plate 20 is in contact with the inner peripheral surface facing the inside of the lower vertical wind direction plate 9 at the front end portion of the rib 11 of the base plate 10, similarly to the front end portion 33 of the cover plate 30. . In this state, the cover plate 20 and the base plate 10 are joined by ultrasonic welding of the left end 21 and the front end 23 of the cover plate 20 and the rib 11 of the base plate.

The left end 21 of the cover plate 20 is the first end of the first cover plate of the present invention. The right end 32 of the cover plate 30 is the second end of the second cover plate of the present invention.

As shown in FIG. 5, a rib 34 extending in the longitudinal direction is formed on the back surface of the cover plate 30. In addition to the above-described ultrasonic welding, the base plate 10 and the cover plate 30 are joined by ultrasonically welding the ribs 34 to the back surface of the base plate 10. A hollow portion 40 is formed between the base plate 10 and the cover plate 30. Similarly, a rib extending in the longitudinal direction similar to the rib 34 is formed on the back surface of the cover plate 20. In addition to the above-described ultrasonic welding, the base plate 10 and the cover plate 20 are joined by ultrasonic welding the ribs on the back surface of the cover plate 20 to the back surface of the base plate 10. A hollow portion similar to the hollow portion 40 is formed between the base plate 10 and the cover plate 20.

FIG. 6 is a cross-sectional view showing a joint portion of the cover plate in the lower vertical wind direction plate of the indoor unit of the air conditioner according to Embodiment 1 of the present invention. FIG. 6 is a cross-sectional view showing the lower vertical wind direction plate 9 shown in FIG. 4 cut at a position slightly closer to the front than the connecting portion 14. A convex portion 22 a that protrudes outward from the edge portion is formed on the right end portion 22 of the cover plate 20 so as to extend along the short direction of the cover plate 20. That is, the convex portion 22 a protrudes toward the cover plate 30 adjacent to the cover plate 20. The thickness of the convex portion 22a is thinner than the thickness of the right end portion 22, and the convex portion 22a is formed at a position near the upper surface of the right end portion 22, that is, on the upper side, and the lower side is notched by the convex portion 22a. The step portion 22b is formed. A convex portion 31 a that protrudes outward from the edge portion is formed on the left end portion 31 of the cover plate 30 along the short direction of the cover plate 30. That is, the convex portion 31 a protrudes toward the cover plate 20 adjacent to the cover plate 30. The convex portion 31a is formed on the back surface side of the left end portion 31, and a step portion 31b having a shape in which the lower side is notched by the convex portion 31a is formed. The right end 22 of the cover plate 20 and the left end 31 of the cover plate 30 are ultrasonically welded with the step 22b of the cover plate 20 superimposed on the step 31b of the cover plate 30 from above. .

As described above, according to the first embodiment, the lower vertical wind direction plate 9 includes the base plate 10 that is a long member and the cover plates 20 and 30 that are two long members. . On the base plate 10, the cover plates 20 and 30 are adjacent in the longitudinal direction along the longitudinal direction of the base plate 10. The length of each of the cover plates 20 and 30 in the longitudinal direction is about ½ of the length of the base plate 10 in the longitudinal direction, and the sum thereof is equal to the length of the base plate in the longitudinal direction. That is, in the first embodiment, the cover plates 20 and 30 which are members whose length in the longitudinal direction is shorter than the base plate 10 are arranged on the base plate 10 and welded to the base plate 10 respectively. Therefore, compared to the case where a cover plate having the same length in the longitudinal direction as the base plate is arranged and welded to the base plate, occurrence of welding displacement and insufficient welding is suppressed, and the number of defects of the lower vertical wind direction plate 9 is reduced. Can be reduced. That is, the lower vertical wind direction plate 9 excellent in assemblability is obtained, and as a result, the yield of the indoor unit 100 is improved.

Embodiment 2. FIG.
FIG. 7 is an exploded view showing a cross section of the joint portion of the cover plate in the lower vertical wind direction plate of the indoor unit of the air conditioner according to Embodiment 2 of the present invention. FIG. 8 is a diagram illustrating a cross-section of the joint portion of the cover plate in the lower vertical wind direction plate of the indoor unit of the air conditioner according to Embodiment 2 of the present invention. In the second embodiment, the configuration other than the lower vertical wind direction plate is the same as that of the indoor unit 100 of the first embodiment, and the description thereof is omitted. The lower vertical wind direction plate 90 of the indoor unit according to Embodiment 2 includes a base plate 50, a cover plate 51, and a cover plate 52.

The cover plate 51 is the first cover plate of the present invention, and is one of the adjacent cover plates. The cover plate 52 is the second cover plate of the present invention, and is the other cover plate of the adjacent cover plates.

The base plate 50 is a long member, and is a thin plate-like member having a rectangular shape as a whole, like the base plate 10 of the first embodiment. A convex portion 50 a is formed in the longitudinal direction of the base plate 50, and a convex portion 50 b is formed in the base plate 50. The convex portions 50 a and the convex portions 50 b protrude upward in the vertical direction, and extend along the short direction that intersects the longitudinal direction of the base plate 50. A pair of convex portions 50 c and 50 d are formed at the central portion in the longitudinal direction of the base plate 50. The convex part 50c and the convex part 50d are extended along the short direction of the base board 50 similarly to the convex parts 50a and 50d.

The left end of the base plate 50 is one end of both end portions in the longitudinal direction of the base plate of the present invention. The right end of the base plate 50 is the other end of both ends in the longitudinal direction of the base plate of the present invention.

The cover plate 51 and the cover plate 52 are thin plate-like members having a rectangular shape as a whole, like the cover plate 20 and the cover plate 30 of the first embodiment. The cover plate 51 is disposed in a region on the left end side of the base plate 50 when viewed from the front of the indoor unit, and the cover plate 52 is a region on the right end portion of the base plate 50 as viewed from the front of the indoor unit. Placed in. That is, the cover plate 51 and the cover plate 52 are disposed adjacent to each other on the base plate 50 so that the right end portion of the cover plate 51 and the left end portion of the cover plate 52 face each other. The length of the cover plate 51 in the longitudinal direction is about ½ of the length of the base plate 50 in the longitudinal direction. The length of the cover plate 52 in the longitudinal direction is about ½ of the length of the base plate 50 in the longitudinal direction. That is, the length obtained by adding the length in the longitudinal direction of the cover plate 51 and the length in the longitudinal direction of the cover plate 52 matches the length in the longitudinal direction of the base plate 50.

A convex portion 51 a is formed at the left end portion in the longitudinal direction of the cover plate 51 so as to protrude outward from the edge portion of the lower vertical wind direction plate 90. The convex portion 51 a is formed so as to extend along the short direction of the cover plate 51, similarly to the convex portion 22 a of the right end portion 22 of the cover plate 20 of the first embodiment. The thickness of the convex portion 51a is thinner than the thickness of the other portion of the cover plate 51, and the convex portion 51a is formed at a position near the upper surface of the left end portion, that is, on the upper side. The convex portion 51 a forms a stepped portion 51 b having a shape in which the lower side is cut off at the left end portion of the cover plate 51. A convex portion 51 c that protrudes from the edge toward the cover plate 52 is formed at the right end in the longitudinal direction of the cover plate 51. The convex portion 51 c is formed so as to extend along the short direction of the cover plate 51, similarly to the convex portion 51 a. The thickness of the convex part 51c is thinner than the thickness of the other part of the cover plate 51, and the convex part 51c is formed near the upper surface of the right end part, that is, on the upper side. The convex portion 51c forms a stepped portion 51d having a shape in which the lower side is cut off at the right end portion of the cover plate 51.

A convex portion 52 a that protrudes from the edge toward the cover plate 51 is formed at the left end in the longitudinal direction of the cover plate 52. The convex portion 52 a is formed so as to extend along the short direction of the cover plate 52, similarly to the convex portion 51 a at the left end portion of the cover plate 51. The thickness of the convex portion 52a is thinner than the thickness of the other portion of the cover plate 52, and the convex portion 52a is formed at a position near the lower surface of the left end portion, that is, on the lower side. The convex portion 52 a forms a stepped portion 52 b having a shape in which the upper side is cut off at the left end portion of the cover plate 52. A convex portion 52 c is formed at the right end portion in the longitudinal direction of the cover plate 52 so as to protrude outward from the lower vertical wind direction plate 90 from the edge portion. The convex part 52c is formed so as to extend along the short side direction of the cover plate 52, like the convex part 52a. The thickness of the convex part 52c is thinner than the thickness of the other part of the cover plate 52, and the convex part 52c is formed near the upper surface of the right end part, that is, on the upper side. The convex portion 52c forms a stepped portion 52d having a shape in which the lower side is cut off at the right end portion of the cover plate 52.

The left end of the cover plate 51 is the first end of the first cover plate of the present invention. The right end portion of the cover plate 52 is the second end portion of the second cover plate of the present invention.

When the stepped portion 51b of the cover plate 51 is fitted to the convex portion 50a of the base plate 50, the convex portion of the base plate 50 is brought into contact with the back surface of the cover plate 51 and the top surface of the convex portion 50c of the base plate 50. The lengths of the vertical direction of 50a and convex part 50c are determined. When the stepped portion 52d of the cover plate 52 is fitted to the convex portion 50b of the base plate 50, the convex portion of the base plate 50 is brought into contact with the back surface of the cover plate 52 and the top surface of the convex portion 50d of the base plate 50. The lengths in the vertical direction of 50b and convex portion 50d are determined.

As shown in FIG. 8, the cover plate 51 and the cover plate 52 are joined by ultrasonic welding in a state where the step portion 51d of the cover plate 51 is fitted to the step portion 52b of the cover plate 52 from above. . Further, a stepped portion 51b of the cover plate 51 is fitted to the tip of the convex portion 50a of the base plate 50 from above. A stepped portion 52d of the cover plate 52 is fitted to the tip of the convex portion 50b of the base plate 50 from above. The lower surface of the right end portion of the cover plate 51 is in contact with the top surface of the convex portion 50c of the base plate 50. The lower surface of the left side portion of the cover plate 52 is in contact with the top surface of the convex portion 50d of the base plate 50. In this state, the base plate 50, the cover plate 51, and the cover plate 52 are joined by ultrasonic welding.

As described above, according to the second embodiment, the lower vertical wind direction plate 90 includes the base plate 50 that is a long member and the cover plates 51 and 52 that are two long members, As in the first embodiment, the members are joined by ultrasonic welding. Therefore, the occurrence of welding displacement and insufficient welding can be suppressed, and the number of defects of the lower vertical wind direction plate 90 can be reduced. That is, the lower vertical wind direction plate 90 excellent in assemblability is obtained, and as a result, the yield of the indoor unit is improved.

Further, in the second embodiment, the stepped portion 51b of the cover plate 51 is fitted to the tip of the convex portion 50a of the base plate 50 from above, and the tip of the convex portion 50b of the base plate 50 is covered with the cover. The step 52d of the plate 52 is fitted from above. Accordingly, it is possible to make the bonding at both ends of the base plate 50 stronger.

Embodiment 3 FIG.
FIG. 9 is an exploded view showing a cross section of the joint portion of the cover plate in the lower vertical wind direction plate of the indoor unit of the air conditioner according to Embodiment 3 of the present invention. FIG. 10 is a diagram illustrating a cross-section of the joint portion of the cover plate in the lower vertical wind direction plate of the indoor unit of the air conditioner according to Embodiment 3 of the present invention. In the third embodiment, since the configuration other than the lower vertical wind direction plate is the same as that of the indoor unit 100 of the first embodiment, the description thereof is omitted. The lower vertical wind direction plate 91 of the indoor unit according to Embodiment 2 includes a base plate 60, a cover plate 61, and a cover plate 62.

The cover plate 61 is the first cover plate of the present invention and is one of the adjacent cover plates. The cover plate 62 is the second cover plate of the present invention, and is the other cover plate of the adjacent cover plates.

The base plate 60 is a long member, and is a thin plate-like member having a rectangular shape as a whole, like the base plate 10 of the first embodiment. A convex portion 60 a is formed at the left end of the base plate 60 in the longitudinal direction. The convex portion 60 a protrudes upward in the vertical direction and extends along the short direction that intersects the longitudinal direction of the base plate 60. Furthermore, the tip of the convex portion 60a is bent at a right angle toward the inside of the lower vertical wind direction plate 91 to form a bent portion 60e. A stepped portion 60f having a shape in which the lower side is notched is formed by the bent portion 60e. The bent portion 60e extends along the short side direction of the base plate 60, like the convex portion 60a. A convex portion 60 b is formed on the right end portion of the base plate 60. The convex portion 60 b protrudes upward in the up-down direction and extends along the short direction of the base plate 60. A pair of convex portions 60 c and 60 d are formed in the central portion in the longitudinal direction of the base plate 60. The convex portion 60c and the convex portion 60d extend along the short side direction of the base plate 60, similarly to the convex portions 60a and 60d.

The left end portion of the base plate 60 is one end portion of both end portions in the longitudinal direction of the base plate of the present invention. The right end of the base plate 60 is the other end of both ends in the longitudinal direction of the base plate of the present invention.

The cover plate 61 and the cover plate 62 are thin plate-like members having a rectangular shape as a whole, like the cover plate 20 and the cover plate 30 of the first embodiment. The cover plate 61 is disposed in a region on the left end side of the base plate 60 when viewed from the front of the indoor unit, and the cover plate 62 is a region on the right end portion of the base plate 60 when viewed from the front of the indoor unit. Placed in. That is, the cover plate 61 and the cover plate 62 are disposed adjacent to each other on the base plate 60 so that the right end portion of the cover plate 61 and the left end portion of the cover plate 62 face each other. The length of the cover plate 61 in the longitudinal direction is about ½ of the length of the base plate 60 in the longitudinal direction. The length of the cover plate 62 in the longitudinal direction is about ½ of the length of the base plate 60 in the longitudinal direction. That is, the length obtained by adding the length in the longitudinal direction of the cover plate 61 and the length in the longitudinal direction of the cover plate 62 coincides with the length in the longitudinal direction of the base plate 60.

A convex portion 61 a is formed at the left end portion in the longitudinal direction of the cover plate 61 so as to project outward from the edge portion of the lower vertical wind direction plate 91. The convex portion 61 a is formed so as to extend along the short direction of the cover plate 61, similarly to the convex portion 22 a of the right end portion 22 of the cover plate 20 of the first embodiment. The thickness of the convex portion 61a is thinner than the thickness of the other portion of the cover plate 61, and the convex portion 61a is formed at a position near the lower surface of the left end portion, that is, on the lower side. The convex portion 61 a forms a stepped portion 61 b having a shape in which the upper side is cut off at the left end portion of the cover plate 61. A convex portion 61 c that protrudes from the edge toward the cover plate 62 is formed at the right end portion in the longitudinal direction of the cover plate 61. The convex part 61c is formed so as to extend along the short side direction of the cover plate 61 like the convex part 61a. The thickness of the convex portion 61c is thinner than the thickness of other portions of the cover plate 61, and the convex portion 61c is formed at a position near the upper surface of the right end portion, that is, on the upper side. The convex portion 61 c forms a step portion 61 d having a shape in which the lower side is cut off at the right end portion of the cover plate 61.

A convex portion 62 a that protrudes from the edge toward the cover plate 61 is formed at the left end of the cover plate 62 in the longitudinal direction. The convex portion 62 a is formed so as to extend along the short direction of the cover plate 62, similarly to the convex portion 61 a at the left end portion of the cover plate 61. The thickness of the convex portion 62a is thinner than the thickness of the other portion of the cover plate 62, and the convex portion 62a is formed at a position near the lower surface of the left end portion, that is, on the lower side. The convex portion 62 a forms a stepped portion 62 b having a shape in which the upper side is cut off at the left end portion of the cover plate 62. A convex portion 62 c is formed at the right end in the longitudinal direction of the cover plate 62 so as to protrude outward from the lower vertical wind direction plate 91. The convex part 62c is formed so as to extend along the short side direction of the cover plate 62, similarly to the convex part 62a. The thickness of the convex portion 62c is thinner than the thickness of the other portion of the cover plate 62, and the convex portion 62c is formed at a position near the upper surface of the right end portion, that is, on the upper side. The convex portion 62 c forms a stepped portion 62 d having a shape in which the lower side is cut off at the right end portion of the cover plate 62.

The left end of the cover plate 61 is the first end of the first cover plate of the present invention. The right end portion of the cover plate 62 is the second end portion of the second cover plate of the present invention.

The lengths of the step portion 61b and the bent portion 60e in the longitudinal direction of the base plate 60 and the cover plate 61 are determined so that the bent portion 60e of the base plate 60 is fitted to the step portion 61b of the cover plate 61 from below. It has been. When the stepped portion 61b of the cover plate 61 is fitted to the bent portion 60e of the base plate 60, the base plate 60 is convex so that the back surface of the cover plate 61 and the top surface of the convex portion 60c of the base plate 60 abut. The lengths in the vertical direction of the portion 60a and the convex portion 60c are determined. When the step 62d of the cover plate 62 is fitted to the convex portion 60b of the base plate 60, the convex portion of the base plate 60 is brought into contact with the back surface of the cover plate 62 and the top surface of the convex portion 60d of the base plate 60. The lengths in the vertical direction of 60b and convex portion 60d are determined.

As shown in FIG. 10, the cover plate 61 and the cover plate 62 are joined by ultrasonic welding in a state where the step portion 61d of the cover plate 61 is fitted to the step portion 62b of the cover plate 62 from above. . Further, the stepped portion 61b of the cover plate 61 is fitted to the bent portion 60e of the base plate 60 from below. A stepped portion 62d of the cover plate 62 is fitted to the tip of the convex portion 60b of the base plate 60 from above. The lower surface of the right end portion of the cover plate 61 is in contact with the top surface of the convex portion 60 c of the base plate 60. The lower surface of the left side portion of the cover plate 62 is in contact with the top surface of the convex portion 60d of the base plate 60. In this state, the base plate 60, the cover plate 61, and the cover plate 62 are joined by ultrasonic welding.

As described above, according to the third embodiment, the lower vertical wind direction plate 91 has the base plate 60 that is a long member and the cover plates 61 and 62 that are two long members, As in the first embodiment, the members are joined by ultrasonic welding. Therefore, occurrence of welding displacement and insufficient welding can be suppressed, and the number of defects of the lower vertical wind direction plate 91 can be reduced. That is, the lower vertical wind direction plate 91 excellent in assemblability is obtained, and as a result, the yield of the indoor unit is improved.

Further, in the third embodiment, the cover plates 61 and 62 have a stepped portion whose left end is cut out on the upper side, and a stepped portion whose upper side is cut off on the right end. And have the same shape as a whole. Therefore, in the manufacture of the lower vertical wind direction plate 91, the mold cost and the part cost can be reduced, which is economical.

In the first to third embodiments, the two cover plates are arranged on the base plate, but the present invention is not limited to this. The length in the longitudinal direction of each of the plurality of cover plates is shorter than the length in the longitudinal direction of the base plate, and the sum of the lengths in the longitudinal direction of the plurality of cover plates is the length in the longitudinal direction of the base plate. If they match, three or more cover plates may be arranged on the base plate.

1 housing, 1a inlet, 1b outlet, 2 blower, 3 heat exchanger, 4 filter, 5 outlet assembly, 6 front panel, 7 rear guide, 8 upper vertical wind direction plate, 9 lower vertical wind direction plate, 10 base plate, 11 rib, 12 connecting portion, 13 connecting portion, 14 connecting portion, 20 cover plate, 21 left end portion, 22 right end portion, 22a convex portion, 22b stepped portion, 23 front end portion, 30 cover plate, 31 left end, 31a convex, 31b step, 32 right end, 33 front end, 34 rib, 40 hollow, 50 base plate, 50a convex, 50b convex, 50c convex, 50d convex, 51 cover plate, 51a convex portion, 51b step portion, 51c convex portion, 51d step portion, 52 cover plate, 52a convex portion, 52b step portion, 52c convex portion, 52d Part, 60 base plate, 60a convex part, 60b convex part, 60c convex part, 60d convex part, 60e bent part, 60f step part, 61 cover plate, 61a convex part, 61b convex part, 61c convex part, 61d convex part , 62 cover plate, 62a convex portion, 62b stepped portion, 62c convex portion, 62d stepped portion, 90 lower upper vertical wind direction plate, 91 lower upper vertical wind direction plate, 100 indoor unit.

Claims (5)

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 air-conditioned air from the outlet;
A heat exchanger disposed in an air path between the suction port and the air outlet, inside the housing;
A wind direction adjusting plate for adjusting the vertical wind direction of the air blown out from the air outlet,
The wind direction adjusting plate has a base plate of a long member and a plurality of cover plates of the long member,
Each of the plurality of cover plates is disposed on the base plate such that the longitudinal direction is along the longitudinal direction of the base plate and is adjacent to the other cover plates of the plurality of cover plates,
The length in the longitudinal direction of each of the plurality of cover plates is shorter than the length in the longitudinal direction of the base plate, and the sum of the lengths in the longitudinal direction of the plurality of cover plates is the length of the base plate. Equal to the length of the direction,
In the plurality of cover plates, opposing ends of the adjacent cover plates are welded together,
A first cover plate disposed on one end side of both end portions in the longitudinal direction of the base plate among the plurality of cover plates; and a first end portion on the one end side of the base plate; , The one end of the base plate is welded,
A second end of the second cover plate disposed on the side of the other end of the longitudinal direction of the base plate among the plurality of cover plates; An indoor unit of an air conditioner in which the other end of the base plate is welded. Out of both ends of one cover plate of the adjacent cover plate, the end portion of the adjacent cover plate facing the other cover plate protrudes toward the other cover plate. A convex part is formed,
Of the both ends of the other cover plate of the adjacent cover plate, the end portion of the adjacent cover plate facing the one cover plate is on the side of the one cover plate. A protruding convex part is formed,
The convex portion of the one cover plate and the convex portion of the other cover plate are welded,
The one end portion and the other end portion of the base plate are each formed with a convex portion protruding upward.
Welding with the first end of the first cover plate in contact with the end surface of the convex portion of the one end of the base plate;
The indoor unit of the air conditioner according to claim 1, wherein the second end of the second cover plate is welded in a state where the second end of the second cover plate is in contact with an end surface of the convex portion of the other end of the base plate. Out of both ends of one cover plate of the adjacent cover plate, the end portion of the adjacent cover plate facing the other cover plate protrudes toward the other cover plate. A convex part is formed,
Of the both ends of the other cover plate of the adjacent cover plate, the end portion of the adjacent cover plate facing the one cover plate is on the side of the one cover plate. A protruding convex part is formed,
The convex portion of the one cover plate and the convex portion of the other cover plate are welded,
The one end portion and the other end portion of the base plate are each formed with a convex portion protruding upward.
The first end portion of the first cover plate and the second end portion of the second cover plate are respectively formed with convex portions extending outward of the wind direction adjusting plate,
The convex portion of the one end portion of the base plate and the convex portion of the first end portion of the first cover plate are welded,
The indoor unit of an air conditioner according to claim 1, wherein the convex portion at the other end portion of the base plate and the convex portion at the second end portion of the second cover plate are welded. The wind direction adjusting plate has two cover plates, the first cover plate and the second cover plate, as the plurality of cover plates, and the first direction opposite to the first end of the first cover plate. The first cover plate and the second cover plate are adjacent so that the three end portions and the fourth end portion opposite to the second end portion of the second cover plate face each other.
In the first end portion and the third end portion of the first cover plate, a step portion having a shape in which the convex portion is formed on the upper side and the lower side is notched is configured.
At the second end portion of the second cover plate, a step portion having a shape in which a lower portion with a convex portion formed on the upper side is cut out is formed, and at the fourth end portion of the second cover plate, a lower side is formed. A step portion having a shape in which the upper side where the convex portion is formed is cut away is configured,
A stepped portion having a shape in which the lower side of the third end portion of the first cover plate is cut off and a stepped portion in the shape of being cut out on the upper side of the fourth end portion of the second cover plate are fitted. Together
A stepped shape in which the lower side of the first end portion of the first cover plate is cut out and the convex portion of the one end portion of the base member are fitted,
The step part of the shape where the said lower side of the said 2nd edge part of the said 2nd cover board was notched, and the said convex part of the said other edge part of the said base member are fitting. Air conditioner indoor unit. The wind direction adjusting plate has two cover plates, the first cover plate and the second cover plate, as the plurality of cover plates, and the first direction opposite to the first end of the first cover plate. The first cover plate and the second cover plate are adjacent so that the three end portions and the fourth end portion opposite to the second end portion of the second cover plate face each other.
A bent portion that is bent toward the inside of the up-and-down airflow direction adjusting plate is formed at the tip of the convex portion of the one end portion of the base member, and a step portion having a shape in which the lower side is cut out is configured. Has been
At the first end portion of the first cover plate, a stepped portion having a shape in which the upper side with the convex portion formed on the lower side is cut out is formed, and at the third end portion, a convex portion is formed on the upper side. The stepped part of the shape where the lower side is cut out is configured,
In the fourth end portion of the second cover plate, a stepped portion having a shape in which the upper portion with the convex portion formed on the lower side is cut out is formed, and in the second end portion, the convex portion is formed on the upper side. The step formed in the shape where the formed lower side is cut out is configured,
A stepped portion having a shape in which the lower side of the third end portion of the first cover plate is cut off and a stepped portion in the shape of being cut out on the upper side of the fourth end portion of the second cover plate are fitted. Together
A stepped portion having a shape in which the upper side of the first end portion of the first cover plate is notched and a stepped portion having a shape in which the lower side of the one end portion of the base member is notched are fitted. And
The step part of the shape where the said lower side of the said 2nd edge part of the said 2nd cover board was notched, and the said convex part of the said other edge part of the said base member are fitting. Air conditioner indoor unit.

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