JP6956804B2 - Indoor unit of air conditioner - Google Patents

Description

The present invention relates to an installation structure of an indoor unit of an air conditioner that is embedded in the ceiling of an air-conditioned space or suspended from the ceiling of an air-conditioned space.

Some indoor units of conventional air conditioners are installed by being embedded in the ceiling of the air-conditioned space or suspended from the ceiling of the air-conditioned space. As a conventional indoor unit installed in this way, for example, a suction port opened at a substantially central portion of the lower surface portion of the housing and four air outlets opened at the lower surface portion so as to surround all four sides of the suction port. There is known an indoor unit that is equipped with a heat exchanger and can blow out air after heat exchange in all directions. Further, as a conventional indoor unit installed in this way, it has been proposed that the housing is composed of an indoor unit main body, a casement, and a decorative panel (see, for example, Patent Document 1). The casement is attached to the lower part of the indoor unit body by the installation mechanism. The decorative panel is attached to the bottom of the casement by an installation mechanism. For example, in the indoor unit described in Patent Document 1, the casement is provided with a left-right wind direction adjusting unit for adjusting the lateral angle of the air blown from the air outlet.

Japanese Unexamined Patent Publication No. 2010-210132

In the indoor unit of a conventional air conditioner in which the housing is composed of the indoor unit main body, the casement and the decorative panel, when the indoor unit is installed, the configuration of the left / right wind direction adjusting unit provided in the casement is not used. In some cases, no casement may be provided. That is, when the casement is provided, the casement is attached to the lower part of the indoor unit main body, and the decorative panel is attached to the lower part of the casement. If no casement is provided, a decorative panel is attached to the lower part of the indoor unit body.

Generally, the indoor unit main body and the casement are fixed by an installation mechanism arranged at a corner of the indoor unit main body and the casement in a plan view. At this time, the casement is fixed to the indoor unit main body attached to the ceiling of the air-conditioned space. Therefore, the installation worker connects the tool to the male screw of the installation mechanism from below the indoor unit main body and the casement, and tightens the male screw to fix the indoor unit main body and the casement. Similarly, the casement and the decorative panel are also fixed by the installation mechanism arranged at the corners of the casement and the decorative panel in a plan view. At this time as well, as in the case of fixing the indoor unit body and the casement, the installation worker connects the tool from below the casement and the decorative panel to the male screw of the installation mechanism, and tightens the male screw to tighten the casement. And the decorative panel will be fixed.

That is, in the indoor unit of the conventional air conditioner, when the casement is provided, the installation mechanism for fixing the casement and the decorative panel is arranged below the installation mechanism for fixing the indoor unit main body and the casement. In the indoor unit of a conventional air conditioner, when fixing the indoor unit main body and the casement, the installation mechanism for fixing the casement and the decorative panel becomes an obstacle, and the installation mechanism for fixing the indoor unit main body and the casement is obstructed. The tool cannot be connected to the male screw. For this reason, in the indoor unit of a conventional air conditioner, when fixing the indoor unit body and the casement, at least a part of the installation mechanism for fixing the casement and the decorative panel is temporarily removed, and the removed parts are temporarily removed. It had to be temporarily placed. Therefore, the indoor unit of a conventional air conditioner whose housing is composed of a casement and a decorative panel has a problem that the installation workability is poor.

The present invention has been made to solve the above problems, and an object of the present invention is to obtain an indoor unit of an air conditioner having improved installation workability as compared with the conventional one.

The indoor unit of the air conditioner according to the present invention includes an indoor unit main body, a casement attached to the lower part of the indoor unit main body, a decorative panel attached to the lower part of the casement, the indoor unit main body and the indoor unit. A first connecting member comprising an installation mechanism for fixing the casement and fixing the casement and the decorative panel, and the installation mechanism is attached to the indoor unit main body and a first female screw is formed. And the second connecting member, which is attached to the casement at a position below the first connecting member and has a first through hole formed through which the first male screw screwed into the first female screw penetrates. A third connecting member attached to the casement at a position below the second connecting member and formed with a second female screw, and a third connecting member slidably provided on the third connecting member, on the second female screw. The decorative panel includes a second through hole through which the second female screw to be screwed penetrates and a fourth connecting member on which the third female screw is formed, and the decorative panel has a third male screw screwed into the third female screw. A third through hole is formed through which the second connecting member is formed, and the second connecting member is sandwiched between the head of the first male screw screwed into the first female screw and the lower surface of the first connecting member. The casement is fixed to the indoor unit main body, and the fourth connecting member is sandwiched between the head of the second male screw screwed into the second female screw and the lower surface of the third connecting member. As a result, the fourth male screw is screwed into the third female screw in a state where the fourth connecting member is fixed to the third connecting member and the fourth connecting member is fixed to the third connecting member. By sandwiching the decorative panel between the head of the fourth connecting member and the lower surface of the fourth connecting member, the decorative panel is fixed to the casement, and by moving the fourth connecting member, the decorative panel is fixed. A space is formed below the first male screw so that a tool for screwing the first male screw can be inserted. A fourth through hole is formed in the fourth connecting member, and the third connecting member is formed. Has a stopper that projects laterally and is slidably inserted into the fourth through hole, and has a mechanism for preventing the stopper of the third connecting member from coming out of the fourth through hole. ..

In the indoor unit of the air conditioner according to the present invention, it is not necessary to remove the components of the installation mechanism when fixing the casement to the main body of the indoor unit. Therefore, in the indoor unit of the air conditioner according to the present invention, it is not necessary to temporarily place the components of the installation mechanism when fixing the casement to the main body of the indoor unit. Therefore, the indoor unit of the air conditioner according to the present invention can improve the installation workability as compared with the conventional case.

It is a perspective view which looked at the whole indoor unit of the air conditioner which concerns on embodiment of this invention from diagonally below. It is a vertical sectional view of the whole indoor unit of the air conditioner which concerns on embodiment of this invention. It is a vertical cross-sectional view around the installation mechanism in the indoor unit of the air conditioner which concerns on embodiment of this invention. It is a perspective view around the installation mechanism in the indoor unit of the air conditioner which concerns on embodiment of this invention. It is a perspective view around the installation mechanism in the indoor unit of the air conditioner which concerns on embodiment of this invention. It is a perspective view around the installation mechanism in the indoor unit of the air conditioner which concerns on embodiment of this invention. It is a perspective view around the installation mechanism in the indoor unit of the air conditioner which concerns on embodiment of this invention. It is a perspective view around the installation mechanism in the indoor unit of the air conditioner which concerns on embodiment of this invention.

Hereinafter, an example of the embodiment of the indoor unit of the air conditioner according to the present invention will be specifically described.

Embodiment.
FIG. 1 is a perspective view of the entire indoor unit of the air conditioner according to the embodiment of the present invention as viewed from diagonally below. Further, FIG. 2 is a vertical sectional view of the entire indoor unit of the air conditioner according to the embodiment of the present invention.
The indoor unit 100 of the air conditioner according to the present embodiment is installed by being embedded in the ceiling of an air-conditioned space such as a room or suspended from the ceiling of the air-conditioned space. The indoor unit 100 includes a housing 1 having a suction port 2 and an air outlet 3 opened on the lower surface thereof. In this embodiment, an example in which four outlets 3 are formed is shown. The housing 1 is, for example, a substantially rectangular parallelepiped box having a hollow inside. The suction port 2 is opened, for example, in a substantially central portion of the lower surface portion of the housing 1. The four outlets 3 are open so as to surround the four sides of the suction port 2. These outlets 3 have, for example, a rectangular shape, and their long sides are arranged along each side of the lower surface portion of the housing 1. Further, the suction port 2 is provided with a suction grill 2a and a filter 9.

Further, inside the housing 1, a blower 6 which is a centrifugal fan such as a turbo fan is provided at a position facing the suction port 2. For example, the central axis of the blower 6 is arranged at substantially the same position as the center of the suction port 2 in a plan view. The blower 6 sucks the air in the air-conditioned space into the housing 1 from the suction port 2 and blows it out from the air outlet 3. Further, inside the housing 1, for example, a fin-and-tube type heat exchanger 7 is provided so as to surround the blower 6. The heat exchanger 7 exchanges heat between the refrigerant flowing inside the heat exchanger 7 and the air in the air-conditioned space sucked into the housing 1 by the blower 6.

The heat exchanger 7 is arranged at a position on the outer peripheral side of the suction port 2 and on the inner peripheral side of the air outlet 3 in a plan view. That is, the housing 1 is formed with a suction flow path 4 for communicating the suction port 2 and the heat exchanger 7, and an outlet flow path 5 for communicating the heat exchanger 7 and the air outlet 3. Therefore, as shown by the arrows as the suction air 101 and the blowout air 102 in FIG. 2, the air in the air-conditioned space is sucked into the housing 1 from the suction port 2 by the rotation of the blower 6, and the suction flow path. It is configured to flow into the heat exchanger 7 through the heat exchanger 7. Further, the air in the air-conditioned space that has flowed into the heat exchanger 7 exchanges heat with the refrigerant flowing in the refrigerant flow path of the heat exchanger 7 when passing through the heat exchanger 7, and becomes air-conditioned air, and becomes air-conditioned air. It is configured to be blown out from the air outlet 3 to the air-conditioned space through the air outlet 3.

Since four outlets 3 are formed in the present embodiment, four outlet channels 5 are also formed. Further, the cross-sectional shape of the blowout flow path 5 is, for example, rectangular like the blowout port 3, and the long side is shaped so as to follow each side of the lower surface portion of the housing 1. Further, the indoor unit 100 according to the present embodiment is a bell mouth 8 that guides the air in the air-conditioned space sucked from the suction port 2 into the suction flow path 4 between the suction port 2 and the blower 6 to the blower 6. Also equipped.

Further, in the indoor unit 100 according to the present embodiment, the vertical wind direction adjusting plate 51 for adjusting the angle of the conditioned air blown from the air outlet 3 and the plurality of left and right wind direction adjusting plates 41 can swing freely in the blowing flow path 5. It is provided in.

The vertical wind direction adjusting plate 51 adjusts the vertical angle of the conditioned air blown out from the air outlet 3. The vertical wind direction adjusting plate 51 is a plate-shaped member extending in the longitudinal direction of the blowout flow path 5. Further, the vertical wind direction adjusting plate 51 is configured to swing in the vertical direction about a rotation axis extending in the longitudinal direction of the blowout flow path 5. The vertical swing of the vertical wind direction adjusting plate 51 is performed by a drive device 52 such as a drive motor. Therefore, as the position of the outer peripheral side end of the vertical wind direction adjusting plate 51 goes upward, the conditioned air blown out from the air outlet 3 is blown out at an angle closer to the horizontal direction. Further, as the position of the outer peripheral side end portion of the vertical wind direction adjusting plate 51 goes downward, the conditioned air blown out from the air outlet 3 is blown downward.

The plurality of left and right wind direction adjusting plates 41 are components of the left and right wind direction adjusting unit 40. The left-right wind direction adjusting unit 40 adjusts the lateral angle of the conditioned air blown out from the air outlet 3. The left and right wind direction adjusting portions 40 are provided for each outlet 3. The plurality of left and right wind direction adjusting plates 41 are arranged in the blowout flow path 5 in the longitudinal direction (horizontal direction) of the blowout flow path 5 at a predetermined interval. Each of the left and right wind direction adjusting plates 41 is swingably arranged in the blowout flow path 5. For example, the lower end of each of the left and right wind direction adjusting plates 41 swings in the left-right direction. Then, the conditioned air blown out from the air outlet 3 is bent and blown out in the direction in which the lower end portion of the left / right wind direction adjusting plate 41 is moved. The swing of the left / right wind direction adjusting plate 41 is performed by the power of a drive motor (not shown) of the left / right wind direction adjusting unit 40.

Here, in the present embodiment, the housing 1 is composed of the indoor unit main body 10, the casement 20, and the decorative panel 30.

The indoor unit main body 10 is, for example, a box body having a substantially rectangular parallelepiped shape having a chamfered shape at a corner in a plan view. A blower 6, a heat exchanger 7, and a bell mouth 8 are housed in the indoor unit main body 10. Further, the indoor unit main body 10 is formed with a first suction flow path 14 forming a part of the suction flow path 4 and a first blow-out flow path 15 forming a part of the blow-out flow path 5. The end portion of the first suction flow path 14 opposite to the heat exchanger 7 is opened, for example, to a substantially central portion of the lower surface portion of the indoor unit main body 10. The end of the first outlet flow path 15 opposite to the heat exchanger 7 is opened on the lower surface of the indoor unit main body 10 so as to surround the four sides of the opening of the first suction flow path 14. Further, the indoor unit main body 10 is provided with a temporary hook 12 used for temporarily fixing the casement 20 on the inner peripheral wall for partitioning the first suction flow path 14. Further, on the outer peripheral portion of the indoor unit main body 10, an installation metal fitting 11 used for suspending the indoor unit main body 10 from the ceiling of the space to be air-conditioned is provided.

The casement 20 is attached to the lower part of the indoor unit main body 10. The casement 20 has substantially the same shape as the indoor unit main body 10 in a plan view. That is, the casement 20 has a substantially rectangular parallelepiped shape having a chamfered shape at the corners in a plan view. The casement 20 is formed with a second suction flow path 24 and a second blowout flow path 25. The second suction flow path 24 forms a part of the suction flow path 4 and communicates with the first suction flow path 14. The second suction flow path 24 is a through hole formed in a substantially central portion of the casement 20 in a plan view. The second outlet flow path 25 forms a part of the outlet flow path 5 and communicates with the first outlet flow path 15. The second outlet flow path 25 is a through hole formed so as to surround all four sides of the second suction flow path 24 in a plan view.

Further, the casement 20 is provided with a temporary hook 23 used for temporarily fixing the decorative panel 30 to the inner peripheral wall 26 for partitioning the second suction flow path 24. The inner peripheral wall 26 is also provided with a temporary hook wire 29 that is hooked on the temporary hook 12 when the casement 20 is temporarily fixed to the indoor unit main body 10. Further, a sealing material 91 is provided on the upper surface of the casement 20. When the casement 20 is fixed to the indoor unit main body 10, the sealing material 91 has a suction flow path 4 (first suction flow path 14 and a second suction flow path 24) and a blowout flow path 5 (first blowout flow path 15 and). It separates the second outlet flow path 25). The indoor unit main body 10 and the casement 20 are connected and fixed by the installation mechanism 70. Details of the installation mechanism 70 will be described later.

Here, in the present embodiment, the left-right wind direction adjusting unit 40, which will be described later, is provided in the casement 20. That is, the left-right wind direction adjusting plate 41 described above is swingably arranged in the second blowing flow path 25.

The decorative panel 30 is attached to the lower part of the casement 20, and is, for example, a substantially rectangular plate-like body. That is, the decorative panel 30 constitutes the lower surface portion of the housing 1. The decorative panel 30 is formed with a suction port 2, a third suction flow path 34, a third outlet flow path 35, and an outlet 3. The third suction flow path 34 forms a part of the suction flow path 4 and communicates with the second suction flow path 24 and the suction port 2. The third suction flow path 34 is a through hole formed in a substantially central portion of the decorative panel 30 in a plan view. The third outlet flow path 35 forms a part of the outlet flow path 5 and communicates with the second outlet flow path 25 and the outlet 3. The third outlet flow path 35 is a through hole formed so as to surround all four sides of the third suction flow path 34 in a plan view.

Further, the decorative panel 30 is provided with a temporary hanging wire 32 on the inner peripheral wall for partitioning the third suction flow path 34. The temporary hook wire 32 is hooked on the temporary hook 23 when the decorative panel 30 is temporarily fixed to the casement 20. Further, a sealing material 92 is provided on the upper surface of the decorative panel 30. When the decorative panel 30 is fixed to the casement 20, the sealing material 92 has a suction flow path 4 (second suction flow path 24 and a third suction flow path 34) and a blowout flow path 5 (second blowout flow path 25 and a second suction flow path 34). 3 It separates the blowout flow path 35). The casement 20 and the decorative panel 30 are connected and fixed by the installation mechanism 70.

Here, in the present embodiment, the above-mentioned vertical wind direction adjusting plate 51 is swingably arranged in the third blowing flow path 35. Further, a drive device 52 for swinging the vertical wind direction adjusting plate 51 is provided on the decorative panel 30.

The indoor unit of the air conditioner installed embedded in the ceiling of the air-conditioned space or suspended from the ceiling of the air-conditioned space is not provided with the left / right wind direction adjusting unit 40 from the viewpoint of cost reduction and the like. May be required. In such a case, in the indoor unit provided with the left and right wind direction adjusting units, the left and right wind direction adjusting units are removed from the indoor unit. This is because the housing can also be used regardless of the necessity of the left and right wind direction adjusting portions. Therefore, even in the indoor unit 100 according to the present embodiment, when the left / right wind direction adjusting unit 40 is unnecessary, the left / right wind direction adjusting unit 40 is removed from the indoor unit 100.

Here, when the indoor unit main body 10 and the casement 20 are integrally formed, that is, when the lower part of the indoor unit main body 10 is extended and the extended portion is used as the casement 20, the left / right wind direction adjusting unit 40 , Will be provided in the indoor unit main body 10. In such a case, when the left / right wind direction adjusting unit 40 is removed from the indoor unit 100, the indoor unit main body 10 has a space in which the left / right wind direction adjusting unit 40 is installed. Therefore, when the left-right wind direction adjusting unit 40 is unnecessary, the indoor unit main body 10 integrally formed with the casement 20 becomes larger than necessary. That is, when the indoor unit main body 10 and the casement 20 are integrally formed, the indoor unit 100 becomes larger than necessary when the left / right wind direction adjusting unit 40 is unnecessary.

However, in the indoor unit 100 according to the present embodiment, as described above, the indoor unit main body 10 and the casement 20 are separately formed, and the left and right wind direction adjusting portions 40 are provided in the casement 20. Therefore, in the indoor unit 100 according to the present embodiment, when the left / right wind direction adjusting unit 40 is unnecessary, the casement 20 may be removed and the decorative panel 30 may be attached to the lower part of the indoor unit main body 10. As a result, it is possible to prevent the indoor unit 100 from becoming larger than necessary when the left / right wind direction adjusting unit 40 is unnecessary.

Subsequently, the details of the installation mechanism 70 will be described.

FIG. 3 is a vertical cross-sectional view of the periphery of the installation mechanism of the indoor unit of the air conditioner according to the embodiment of the present invention. 4 to 8 are perspective views of the periphery of the installation mechanism of the indoor unit of the air conditioner according to the embodiment of the present invention. Note that FIG. 4 is a diagram showing an installation mechanism 70 in a state where the indoor unit main body 10, the casement 20 and the decorative panel 30 are not yet fixed, and the fourth connecting member 74 is removed from the third connecting member 73. It is a figure which shows. Further, FIG. 5 is a diagram showing an installation mechanism 70 in a state where the indoor unit main body 10, the casement 20 and the decorative panel 30 are not yet fixed, and the fourth connecting member 74 is arranged at the connection position of the decorative panel 30. It is a figure which shows the state which is. Further, FIG. 6 is a diagram showing an installation mechanism 70 in the middle of fixing the casement 20 to the indoor unit main body 10, and the fourth connecting member 74 is moved from the connecting position of the decorative panel 30 to the shelter position. The figure which shows the state. Further, FIG. 7 is a diagram showing an installation mechanism 70 in the middle of fixing the decorative panel 30 to the casement 20 in a state where the casement 20 is fixed to the indoor unit main body 10, and the fourth connecting member 74 is It is a figure which shows the state which is arranged at the connection position of the decorative panel 30. Further, FIG. 8 is a diagram showing an installation mechanism 70 showing a state in which the casement 20 is fixed to the indoor unit main body 10 and the decorative panel 30 is fixed to the casement 20.
Hereinafter, the details of the installation mechanism 70 will be described with reference to FIGS. 3 to 8 and FIGS. 1 and 2 described above.

As described above, the installation mechanism 70 connects and fixes the indoor unit main body 10 and the casement 20, and connects and fixes the casement 20 and the decorative panel 30. As shown in FIG. 1, the installation mechanism 70 is provided at each corner of the indoor unit main body 10 and the casement 20, for example.

The installation mechanism 70 includes a first connecting member 71, a second connecting member 72, a third connecting member 73, and a fourth connecting member 74. The first connection member 71 of the installation mechanism 70 according to the present embodiment is integrally formed with the installation metal fitting 11 used when suspending the indoor unit main body 10 from the ceiling of the air-conditioned space. The installation metal fitting 11 integrally formed with the first connecting member 71 is attached to the indoor unit main body 10. The installation metal fitting 11 has a notch portion 11a into which the hanging bolt 86 is inserted. The indoor unit main body 10 is suspended from the ceiling of the air-conditioned space by inserting the suspension bolt 86 into the notch portion 11a and sandwiching the installation metal fitting 11 with a pair of nuts attached to the suspension bolt 86.

The first connecting member 71 is attached to the indoor unit main body 10. A female screw 71a, which is a first female screw, is formed on the first connecting member 71. The female screw 71a is a female screw into which the male screw 81, which is the first male screw, is screwed. The second connecting member 72 is attached to the casement 20 at a position below the first connecting member 71. A through hole 72a, which is a first through hole, is formed in the second connection member 72. The through hole 72a is a through hole through which the male screw 81 penetrates. Here, in the present embodiment, the male screw 81 is held by the flexible male screw holding member 72b. Further, the male screw holding member 72b is attached to the second connecting member 72. The male screw holding member 72b may be attached to a component other than the second connecting member 72 as long as it is attached to the casement 20.

The third connecting member 73 is attached to the casement 20 at a position below the second connecting member 72. A female screw 73a, which is a second female screw, is formed on the third connecting member 73. The female screw 73a is a female screw into which the male screw 82, which is the second male screw, is screwed. In the present embodiment, the female screw 73a is formed on the convex portion 73d described later.

The fourth connecting member 74 is slidably provided on the third connecting member 73. Specifically, the fourth connecting member 74 has a vertical arrangement portion 74f extending in the vertical direction and a lateral arrangement portion 74g extending in the horizontal direction. That is, the fourth connecting member 74 is formed in an L-shaped cross section by the vertical arrangement portion 74f and the horizontal arrangement portion 74g. A cross hole 74a is formed in the fourth connecting member 74. The cross hole 74a is formed by a through hole 74b which is a second through hole and a through hole 74c which is a fourth through hole. The through hole 74c is a through hole extending in the lateral direction, and is formed in the vertically arranged portion 74f. The through hole 74b is a through hole extending so as to intersect the through hole 74c, and is formed so as to extend from the lateral arrangement portion 74g to the vertical arrangement portion 74f. On the other hand, the third connecting member 73 includes a convex portion 73d protruding from the casement 20 toward the outer peripheral side. That is, the third connecting member 73 includes a convex portion 73d that protrudes in the lateral direction. The convex portion 73d is slidably inserted into the through hole 74c of the fourth connecting member 74. As a result, the fourth connecting member 74 is slidable with respect to the third connecting member 73. Then, by moving the fourth connecting member 74 so as to approach the casement 20, the fourth connecting member 74 becomes the connecting position of the decorative panel 30 shown in FIGS. 5 and 7. Further, by moving the fourth connecting member 74 away from the casement 20, the fourth connecting member 74 becomes the retreat position shown in FIG.

At the connection position of the decorative panel 30, the fourth connecting member 74 is fixed to the third connecting member 73 as follows. First, the fourth connecting member 74 is arranged at the connecting position of the decorative panel 30. Then, the male screw 82 is passed through the portion of the through hole 74b formed in the laterally arranged portion 74g, and the male screw 82 is screwed into the female screw 73a from below. As a result, the fourth connecting member 74 is sandwiched between the head of the male screw 82 and the lower surface of the third connecting member 73, and the fourth connecting member 74 is fixed to the third connecting member 73. On the other hand, when moving the fourth connecting member 74 to the retracting position, the male screw 82 is loosened. As a result, the fourth connecting member 74 can slide with respect to the third connecting member 73, and can move to the retreat position. At this time, the portion of the male screw 82 that protrudes upward from the female screw 73a passes through the portion formed in the vertical arrangement portion 74f of the through hole 74b. Therefore, when the fourth connecting member 74 moves between the connecting position and the retaining position of the decorative panel 30, interference between the fourth connecting member 74 and the male screw 82 can be prevented.

Here, in a state where the fourth connecting member 74 is arranged at the connection position of the decorative panel 30, the vertical arrangement portion 74f of the third connecting member 73 is arranged between the male screw 82 and the casement 20. NS. That is, in a state where the decorative panel 30 is fixed to the casement 20, the vertical arrangement portion 74f of the third connecting member 73 is arranged between the male screw 82 and the casement 20. In the present embodiment, when the male screw 82 is screwed into the female screw 73a by a specified length or more, the upper end 74d of the through hole 74b is lower than the tip 82a of the male screw 82. By setting the height relationship between the upper end 74d of the through hole 74b and the tip 82a of the male screw 82 in this way, the male screw 82 fixing the fourth connecting member 74 due to insufficient tightening of the male screw 82, vibration, etc. Even if looseness occurs, the male screw 82 is caught by the vertical arrangement portion 74f. Therefore, even if the male screw 82 is loosened, it is possible to prevent the fourth connecting member 74 from coming off from the third connecting member 73.

Further, the installation mechanism 70 according to the present embodiment includes a stopper 73b that prevents the convex portion 73d of the third connecting member 73 from coming out of the through hole 74c of the fourth connecting member 74. In the present embodiment, the tip of the convex portion 73d is bent to form the stopper 73b. By providing the stopper 73b, when the fourth connecting member 74 is moved away from the casement 20, the vertical arrangement portion 74f of the fourth connecting member 74 comes into contact with the stopper 73b, and the fourth connecting member 74 becomes the first. 3 It is possible to prevent the connecting member 73 from coming off. The stopper 73b may be a separate component from the third connecting member 73.

Further, the convex portion 73d of the third connecting member 73 according to the present embodiment has a notch portion 73c at a position facing the through hole 74c when the fourth connecting member 74 moves to the retreat position. .. In other words, as shown in FIG. 6, when the fourth connecting member 74 moves to the retracting position, a space 75 into which the tool 85 for screwing the male screw 83 can be inserted is formed below the male screw 83. The convex portion 73d of the third connecting member 73 has a notch portion 73c at a position facing the through hole 74c in a state where the fourth connecting member 74 is moved to a position where the space 75 is formed. Therefore, the fourth connecting member 74 is fixed to the third connecting member 73 by engaging the peripheral edge of the through hole 74c with the cutout portion 73c. When the convex portion 73d of the third connecting member 73 does not have the notched portion 73c, the fourth connecting member 74 is not fixed to the third connecting member 73 but hangs from the convex portion 73d of the third connecting member 73. It will be in a state of In this state, the fourth connecting member 74 is tilted by gravity so that the laterally arranged portion 74g rotates downward with the through hole 74c as the center point. Therefore, if the convex portion 73d of the third connecting member 73 does not have the notched portion 73c, the space 75 may become smaller. On the other hand, when the convex portion 73d of the third connecting member 73 has the notched portion 73c, the fourth connecting member 74 can be fixed at the retreat position. Therefore, the inclination of the fourth connecting member 74 as described above can be suppressed, and the space 75 can be suppressed from becoming smaller.

Further, a female screw 74e, which is a third female screw, is formed on the fourth connecting member 74. The female screw 74e is a female screw into which the male screw 83, which is the third male screw, is screwed. As shown in FIGS. 1 and 7, the decorative panel 30 is formed with a through hole 30a, which is a third through hole, at each corner portion 31. The male screw 83 penetrating the through hole 30a is screwed into the female screw 74e.

That is, by screwing the male screw 81 into the female screw 71a from below, the second connecting member 72 is sandwiched between the head of the male screw 81 and the lower surface of the first connecting member 71. As a result, the casement 20 is fixed to the indoor unit main body 10. Further, in a state where the fourth connecting member 74 is fixed to the third connecting member 73 at the connection position of the decorative panel 30 shown in FIGS. 5 and 7, the male screw 83 is screwed into the female screw 74e from below. The decorative panel 30 is sandwiched between the head of the male screw 83 and the lower surface of the fourth connecting member 74. As a result, the decorative panel 30 is fixed to the casement 20. The decorative panel 30 according to the present embodiment includes a corner panel 30b that covers the through hole 30a from below. By covering the through hole 30a with the corner panel 30b after fixing the decorative panel 30 to the casement 20, that is, after installing the indoor unit 100, the design of the indoor unit 100 can be improved.

Here, in the installation mechanism 70 according to the present embodiment, the female screw 74e of the fourth connecting member 74 arranged at the position of the female screw 71a of the first connecting member 71 and the connecting position of the decorative panel 30 in a plan view. Is in the same position. That is, in a plan view, the position where the casement 20 is fixed to the indoor unit main body 10 and the position where the decorative panel 30 is fixed to the casement 20 are the same. With this configuration, when the decorative panel 30 is attached to the lower part of the indoor unit main body 10 when the left / right wind direction adjusting unit 40 is unnecessary, the male screw 83 is screwed into the female screw 71a of the first connecting member 71. , The decorative panel 30 can be fixed to the indoor unit main body 10. That is, the configuration for connecting the component parts of the housing 1 can be standardized between the case where the indoor unit 100 is provided with the casement 20 and the case where the indoor unit 100 is not provided with the casement 20.

On the other hand, when the position of the female screw 71a of the first connecting member 71 and the female screw 74e of the fourth connecting member 74 arranged at the connection position of the decorative panel 30 are set to the same position in a plan view, the following Challenges arise. The indoor unit 100 according to the present embodiment is installed by being embedded in the ceiling of an air-conditioning target space such as a room or suspended from the ceiling of the air-conditioning target space. In such an indoor unit 100, the installation worker performs the installation work from below the indoor unit 100. That is, when fixing the casement 20 to the indoor unit main body 10, it is necessary to connect a tool 85 such as a screwdriver from below to the male screw 81 screwed into the female screw 71a and turn the male screw 81. At this time, since the fourth connecting member 74 covers the lower part of the male screw 81, it becomes difficult to connect the tool 85 to the male screw 81.

However, in the installation mechanism 70 according to the present embodiment, the fourth connecting member 74 is slidably provided on the third connecting member 73. Therefore, as shown in FIG. 6, by moving the fourth connecting member 74 to the retracting position, a space 75 into which the tool 85 can be inserted is formed below the male screw 81. Therefore, in the installation mechanism 70 according to the present embodiment, a tool 85 such as a screwdriver can be connected to the male screw 81 from below, and the male screw 81 can be turned.

Subsequently, the installation operation of the indoor unit 100 according to the present embodiment will be described.
When installing the indoor unit 100, first, the indoor unit main body 10 provided with the blower 6 and the heat exchanger 7 and the like is attached to the hanging bolt 86 provided on the ceiling of the air-conditioned space by using the installation metal fitting 11. Then, the casement 20 is attached to the lower part of the indoor unit main body 10. Specifically, first, as shown in FIG. 2, the temporary hook wire 29 of the casement 20 is hooked on the temporary hook 12 of the indoor unit main body 10, and the casement 20 is temporarily fixed to the indoor unit main body 10. Then, as shown in FIG. 6, by screwing the male screw 81 into the female screw 71a from below, the casement 20 is provided between the head of the male screw 81 and the lower surface of the first connecting member 71. The second connecting member 72 is sandwiched. As a result, the casement 20 is fixed to the indoor unit main body 10.

When the male screw 81 is screwed into the female screw 71a, if the fourth connecting member 74 is at the connection position of the decorative panel 30 shown in FIG. 5, the tool 85 cannot be connected to the male screw 81. Therefore, before screwing the male screw 81 into the female screw 71a, the male screw 82 is loosened and the fourth connecting member 74 is moved to the shelter position shown in FIG. Specifically, as shown by the arrow with the tip filled in FIG. 6, the fourth connecting member 74 is moved away from the casement 20, and then the fourth connecting member 74 is slid in the forming direction of the cutout portion 73c. Let me. As a result, the peripheral edge of the through hole 74c engages with the cutout portion 73c, and the fourth connecting member 74 is fixed to the third connecting member 73.

Here, in the installation mechanism 70 according to the present embodiment, as described above, the male screw 81 is held by the flexible male screw holding member 72b. When the male screw 81 is not held by the male screw holding member 72b, the male screw 81 is attached to the tip of the tool 85, and in this state, the tool 85 and the male screw 81 are passed through the space 75, and the male screw 81 is passed to the female screw 71a. It will be screwed in. In such an operation, the male screw 81 may be dropped before the male screw 81 is screwed into the female screw 71a. However, when the male screw 81 is held by the male screw holding member 72b, the male screw 81 does not fall in the work of screwing the male screw 81 into the female screw 71a. Therefore, by holding the male screw 81 on the male screw holding member 72b, the installation workability can be improved. Further, since the male screw 81 does not fall, it is possible to improve the safety during the installation work. Since the male screw holding member 72b has flexibility, it can be deformed when the male screw 81 is screwed into the female screw 71a. Therefore, even if the male screw 81 is held by the male screw holding member 72b, the male screw 81 does not become difficult to be screwed into the female screw 71a.

After attaching the casement 20 to the lower part of the indoor unit main body 10, the decorative panel 30 is attached to the lower part of the casement 20. Specifically, as shown in FIG. 7, first, the fourth connecting member 74 is moved to the connecting position of the decorative panel 30. Then, by screwing the male screw 82 into the female screw 73a from below, the fourth connecting member 74 is sandwiched between the head of the male screw 82 and the lower surface of the third connecting member 73. As a result, the fourth connecting member 74 is fixed to the third connecting member 73.

After fixing the fourth connecting member 74 at the connection position of the decorative panel 30, as shown in FIG. 2, the temporary hanging wire 32 of the decorative panel 30 is hooked on the temporary hook 23 of the casement 20, and the decorative panel is attached to the casement 20. Temporarily fix 30. Then, as shown in FIGS. 1 and 7, by screwing the male screw 83 into the female screw 74e from below, the decorative panel 30 is placed between the head of the male screw 83 and the lower surface of the fourth connecting member 74. Is sandwiched. As a result, the decorative panel 30 is fixed to the casement 20. As described above, the decorative panel 30 according to the present embodiment includes a corner panel 30b that covers the through hole 30a from below. Therefore, as shown in FIG. 8, after the decorative panel 30 is fixed to the casement 20, the through hole 30a is covered with the corner panel 30b.

As described above, in the indoor unit 100 according to the present embodiment, when the decorative panel 30 is attached to the lower part of the casement 20, it is necessary to remove the fourth connecting member 74 and temporarily place the removed fourth connecting member 74. No. Further, in the indoor unit 100 according to the present embodiment, there is no concern that the fourth connecting member 74 will be dropped on the floor surface. Further, in the indoor unit 100 according to the present embodiment, when the decorative panel 30 is attached to the lower part of the casement 20, the operator can perform the attachment work with both hands. Therefore, the indoor unit 100 according to the present embodiment can improve the installation workability of the indoor unit 100.

1 housing, 2 suction port, 2a suction grill, 3 outlet, 4 suction channel, 5 outlet channel, 6 blower, 7 heat exchanger, 8 bell mouth, 9 filter, 10 indoor unit body, 11
Installation bracket, 11a notch, 12 temporary hook, 14 first suction flow path, 15 first blowout flow path, 20 casement, 23 temporary hook, 24 second suction flow path, 25 second blowout flow path, 26 Inner peripheral wall, 29 Temporary hook wire, 30 Decorative panel, 30a through hole, 30b corner panel, 31 corners, 32 Temporary hook wire, 34 Third suction flow path, 35
3rd outlet flow path, 40 left and right wind direction adjustment part, 41 left and right wind direction adjustment plate, 51 up and down wind direction adjustment plate, 52 drive device, 70 installation mechanism, 71 first connection member, 71a female screw, 72 second connection member, 72a penetration Hole, 72b male screw holding member, 73 3rd connecting member, 73a female screw, 73b stopper, 73c notch, 73d convex part, 74 4th connecting member, 74a cross hole, 74b through hole, 74c through hole, 74d upper end , 74e female screw, 74f vertical arrangement part, 74g horizontal arrangement part, 75 space, 81 male screw, 82 male screw, 82a tip, 83 male screw, 85 tool, 86 hanging bolt, 91 sealing material, 92 sealing material, 100 indoor unit, 101 intake air, 102 blown air.

Claims (4)

Indoor unit body and
The casement attached to the lower part of the indoor unit body and
A decorative panel attached to the bottom of the casement,
An installation mechanism that fixes the indoor unit main body and the casement, and fixes the casement and the decorative panel.
With
The installation mechanism
A first connecting member attached to the indoor unit main body and formed with a first female screw,
A second connecting member attached to the casement at a position below the first connecting member and formed with a first through hole through which the first male screw screwed into the first female screw penetrates.
A third connecting member attached to the casement at a position below the second connecting member and formed with a second female screw, and a third connecting member.
A second through hole slidably provided in the third connecting member through which the second male screw screwed into the second female screw penetrates, and a fourth connecting member in which the third female screw is formed.
With
The decorative panel is formed with a third through hole through which a third male screw screwed into the third female screw penetrates.
By sandwiching the second connecting member between the head of the first male screw screwed into the first female screw and the lower surface of the first connecting member, the casement is fixed to the indoor unit main body. ,
By sandwiching the fourth connecting member between the head of the second male screw screwed into the second female screw and the lower surface of the third connecting member, the fourth connecting member is inserted into the third connecting member. Is fixed,
In a state where the fourth connecting member is fixed to the third connecting member, the decorative panel is located between the head of the third male screw screwed into the third female screw and the lower surface of the fourth connecting member. The decorative panel is fixed to the casement by sandwiching the casement.
By moving the fourth connecting member, a space is formed below the first male screw so that a tool for screwing the first male screw can be inserted.
A fourth through hole is formed in the fourth connecting member.
The third connecting member has a stopper that projects laterally and is slidably inserted into the fourth through hole.
An indoor unit of an air conditioner provided with a mechanism for preventing the stopper of the third connecting member from coming out of the fourth through hole. The stopper has a notch at a position facing the fourth through hole when the fourth connecting member is moved to a position where the space is formed.
The indoor unit of an air conditioner according to claim 1, wherein the fourth connecting member is fixed by engaging the peripheral edge of the fourth through hole with the notch. With the second male screw
The fourth connecting member has a vertically arranged portion extending in the vertical direction and a laterally arranged portion extending in the lateral direction, and is formed in an L-shaped cross section by the vertically arranged portion and the laterally arranged portion.
The second through hole is formed so as to straddle the vertically arranged portion from the laterally arranged portion.
In the state where the decorative panel is fixed to the casement, the vertical arrangement portion is arranged between the second male screw and the casement.
The first or second claim, wherein the upper end of the second through hole is lower than the tip of the second male screw when the second male screw is screwed into the second female screw by a specified length or more. Indoor unit of air conditioner. With the first male screw
A flexible male screw holding member that holds the first male screw and is attached to the casement.
The indoor unit of the air conditioner according to any one of claims 1 to 3.

Images