JP2018197639A - Indoor unit for air conditioner - Google Patents

Abstract

To provide a highly convenient indoor unit for an air conditioner.SOLUTION: An indoor unit includes: a casing (1, 2, 3); a centrifugal fan (30) provided in the casing (1, 2, 3); and an electric component box (8) in which an operation substrate (90) having an operation part (91) is accommodated. The casing (1, 2, 3) includes: a casing body (1) having the centrifugal fan (30) disposed therein; and a panel (2) being mounted to the casing body (1) and having an opening surface (2b) with a panel opening part (2a) from which the centrifugal fan (30) can be exposed. The electric component box (8) is disposed so that the operation substrate (90) is exposed from the panel opening part (2a) to enable the operation part (91) to be operated.SELECTED DRAWING: Figure 6

Description

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

  Patent Document 1 discloses a ceiling embedding comprising a ceiling panel attached to a ceiling opening, an air conditioner body disposed in the ceiling corresponding to the ceiling panel, and a control box disposed in the ceiling. A type of air conditioner is disclosed. In this air conditioner, the control box is configured to be movable from the ceiling to the outside of the ceiling through the ceiling opening.

Japanese Utility Model Publication No. 60-063718

  However, in the above air conditioner, if at least the control box is not moved and positioned outside the ceiling, or if the ceiling panel is not removed in some cases, the control box cannot be opened to perform maintenance and the like. It was not expensive.

  Then, this invention makes it a subject to provide the indoor unit of an air conditioner with high convenience.

An indoor unit of an air conditioner of one embodiment of the present invention is
A casing,
A centrifugal fan disposed inside the casing;
An electrical component box in which an operation board having an operation unit is housed;
The casing is
A casing body in which the centrifugal fan is disposed;
A panel attached to the casing body and having an opening surface provided with a panel opening capable of exposing the centrifugal fan;
The electrical component box is
The operation board is exposed from the panel opening, and the operation section is arranged to be operable.

  According to the indoor unit of the air conditioner of the above aspect, the electrical component box is disposed so that the operation board can be operated with the operation board exposed from the panel opening of the panel. Thereby, since the operation part of an operation board can be operated, without positioning an electrical component box in the exterior of a casing, the indoor unit of an air conditioner with high convenience is realizable.

Moreover, the air conditioner of the air conditioner of one aspect of the present invention includes:
The electrical component box is
A first portion extending in a direction intersecting the opening surface;
A second portion extending along the opening surface and having the operation substrate accommodated therein.

  According to the air conditioner of the air conditioner of the above aspect, the electrical component box is arranged so that only the second portion in which the operation board is accommodated is exposed from the panel opening of the panel. Thereby, for example, compared with the indoor unit of the air conditioner in which the electrical component box is arranged so that the first part and the second part are exposed from the panel opening of the panel, the electrical component box in the panel opening of the panel The space occupied by can be omitted, and the casing can be downsized.

Moreover, the air conditioner of the air conditioner of one aspect of the present invention includes:
The electrical component box is
An electrical component opening provided in the second portion and capable of exposing the operation board;
And a cover that covers the electrical component opening so as to be openable and closable.

  According to the air conditioner of the air conditioner of the above aspect, since the operation board can be easily exposed when necessary, a highly convenient indoor unit of the air conditioner can be realized.

Moreover, the air conditioner of the air conditioner of one aspect of the present invention includes:
The electrical component box can be attached and detached from the panel side, and the electrical component box mounting structure portion is further provided.

  According to the air conditioner of the air conditioner of the above aspect, the electrical component box can be easily attached to the casing body of the casing from the panel side, and the electrical component box can be easily detached from the casing body of the casing. Therefore, an air conditioner indoor unit with high convenience can be realized.

  According to the indoor unit of an air conditioner of the present invention, a highly convenient indoor unit of an air conditioner can be realized.

The perspective view of the indoor unit of the air conditioner provided with the piping fixing structure of one embodiment of the present invention. The bottom view of the indoor unit of FIG. Sectional drawing along the III-III line of FIG. The perspective view of the electrical component box of the indoor unit of FIG. The perspective view which shows the state which removed the grill from the indoor unit of FIG. The perspective view which shows the state which removed the cover of the electrical component box from the indoor unit of FIG. Sectional drawing along the VII-VII line of FIG. The top view which shows an example of the turbo fan of the indoor unit of FIG. 1, a heat exchanger, and a partition plate.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the following description, terms indicating a specific direction or position (for example, terms including “up”, “down”, “right”, “left”, “side”, “end”) are used as necessary. However, the use of these terms is to facilitate understanding of the invention with reference to the drawings, and the technical scope of the present invention is not limited by the meaning of these terms. Further, the following description is merely illustrative in nature and is not intended to limit the present invention, its application, or its use. Furthermore, the drawings are schematic, and the ratios of dimensions and the like do not necessarily match the actual ones.

  As shown in FIG. 1, an indoor unit 100 of an air conditioner according to an embodiment includes a casing body 1, a rectangular plate-like panel 2 provided at one end of the casing body 1 (that is, a lower end in FIG. 1), A casing composed of a grill 3 attached to the panel 2 is provided.

  The casing body 1 has a substantially rectangular box shape, and as shown in FIG. 3, a turbo fan 30 as an example of a centrifugal fan, a heat exchanger 40, and a partition plate 50 are accommodated therein.

  The surface of the casing body 1 to which the panel 2 is attached is provided with a rectangular suction port 1a in a plan view (hereinafter simply referred to as a plan view) viewed along a direction orthogonal to the plate surface of the panel 2. Yes. As shown in FIG. 2, the turbo fan 30 is disposed so as to be located at the suction port 1 a in a plan view. As shown in FIG. 3, a bell mouth 32 is provided between the suction port 1 a of the casing body 1 and the turbofan 30, and a filter 4 is provided between the suction port 1 a and the grill 3. ing.

  As shown in FIG. 3, the heat exchanger 40 and the partition plate 50 are arranged around the rotation shaft 31 of the turbofan 30. Further, a drain pan 60 is disposed on the side of the inlet 1a of the casing body 1 of the heat exchanger 40 and the partition plate 50 (that is, the lower side of FIG. 3).

  Two tubular refrigerant pipe connection portions 5 and 6 are connected to the heat exchanger 40. As shown in FIG. 3, each refrigerant pipe connection portion 5, 6 is connected to one of a pair of wall portions 110, 120 facing the longitudinal direction of the casing body 1 in plan view from the heat exchanger 40 inside the casing body 1. (That is, the left wall portion 110 in FIG. 1) extends in the thickness direction and extends to the outside of the casing body 1. In addition, each of the refrigerant pipe connection portions 5 and 6 is disposed at one end of the casing body 1 in the short direction in the plan view of the wall portion 110.

  As shown in FIG. 3, a ventilation path P that guides the air blown from the turbofan 30 to the air outlet 10 of the panel 2 is provided inside the casing body 1.

  As shown in FIG. 1, a drain socket 7 that protrudes from the wall portion 110 toward the outside of the casing body 1 is provided on the wall portion 110 of the casing body 1. The drain socket 7 is disposed at a substantially central portion of the wall portion 110 in the short direction of the casing body 1 and is configured to be connected to a drain hose (not shown) outside the casing body 1. The electrical component box 8 is fixed to the wall portion 110. The electrical component box 8 is arranged at the end of the wall 110 opposite to the refrigerant pipe connecting portions 5 and 6 with respect to the drain socket 7 in the short direction of the casing body 1.

  A suspension bolt (not shown) for suspending the indoor unit 100 of the air conditioner from the ceiling can be connected to each of the pair of wall portions 110 and 120 facing in the longitudinal direction of the casing body 1 in a plan view. Metal fittings 101 to 104 (the hanging metal fitting 104 is shown in FIG. 5) are provided.

  As shown in FIGS. 3 and 5, the panel 2 has a concave portion 2 c in which a panel opening 2 a is provided on an opening surface 2 b that is an outer surface in the plate thickness direction. A rectangular grill 3 is detachably attached to the recess 2c in a plan view as viewed in a direction perpendicular to the plate surface of the panel 2. A through hole 2d that penetrates the panel 2 in the thickness direction is provided on the bottom surface of the recess 2c, and a filter 4 is disposed in the through hole 2d. That is, as shown in FIG. 2, by removing the filter 4, the turbo fan 30 is visible from the outside of the casing through the through hole 2d.

  As shown in FIG. 2, a blower outlet 10 extending along the short side of the panel 2 is provided on one side of the grill 3 of the panel 2 in the longitudinal direction. A flap 20 is rotatably attached to the air outlet 10. 1 to 3 show a state in which the air outlet 10 is closed by the flap 20.

  Next, the electrical component box 8 of the indoor unit 100 will be described in more detail with reference to FIGS.

  As shown in FIG. 4, the electrical component box 8 is substantially L-shaped, and has an operation board having a first portion 81 in which a power supply board, a control board and the like are accommodated, and an operation unit 91 for various settings and the like. 90 (shown in FIG. 6) has a second portion 82 housed therein.

  As shown in FIG. 5, the first portion 81 extends in a direction intersecting (for example, orthogonal to) the opening surface 2 b of the panel 2. Further, the second portion 82 extends along the opening surface 2b of the panel 2, and a part of the second portion 82 is formed on the bottom surface of the recess 2c of the panel 2 on the opposite side of the outlet 10 from the through hole 2d. It arrange | positions adjacent to 2d and is exposed from the bottom face of the recessed part 2c.

  As shown in FIGS. 5 and 6, the part exposed from the recess 2 c of the second part 82 has an electrical component opening 83 capable of exposing the operation board 90 accommodated in the second part 82, and this electrical component. A cover 84 that covers the product opening 83 is provided. That is, the second portion 82 is disposed so that the operation portion 91 can be operated by removing the grille 3 and the cover 84 to expose the operation substrate 90 therein.

  Note that the operation unit 91 of the operation board 90 is used, for example, when performing a trial operation or field setting after the indoor unit 100 is attached.

  As shown in FIG. 7, an elastic claw portion 85 is provided on the surface of the first portion 81 of the electrical component box 8 that faces the casing body 1. The elastic claw portion 85 has a direction away from the second portion 82 from a position farther from the second portion 82 than the center in the extending direction of the first portion 81 (ie, the vertical direction in FIG. 7) (ie, FIG. 7). And is configured to be elastically deformable in a direction away from the first portion 81 (that is, leftward in FIG. 7).

  Further, as shown in FIG. 7, a through hole 111 into which the elastic claw portion 85 of the electrical component box 8 can be inserted is provided in the wall portion 110 of the casing body 1. The elastic claw portion 85 is inserted into the through hole 111, and the electrical component box 8 is placed so that the wall portion 110 of the casing body 1 is positioned between the first portion 81 of the electrical component box 8 and the elastic claw portion 85. By moving in a direction away from the surface to which the panel 2 of the casing body 1 is attached (that is, upward in FIG. 7), the elastic claw portion 85 is elastically deformed in a direction away from the first portion 81, and the elastic claw portion 85 and The wall portion 110 of the casing body 1 is sandwiched between the first portion 81 of the electrical component box 8. Thereby, the electrical component box 8 is fixed and attached to the casing body 1.

  On the other hand, by moving the electrical component box 8 attached to the casing body 1 in a direction approaching the surface to which the panel 2 of the casing body 1 is attached (that is, downward in FIG. 7), the elastic claw portion 85 and the electrical components are moved. The clamping of the wall part 110 of the casing body 1 by the first part 81 of the box 8 is released. Thereby, the electrical component box 8 is removed from the casing body 1.

  Further, as shown in FIG. 4, a screw fixing portion 86 is provided in the vicinity of the first portion 81 in the second portion 82 of the electrical component box 8, and the panel 2 of the casing body 1 is attached as shown in FIG. A screw hole 112 is provided in the vicinity of the wall 110 of the surface to be formed. In the indoor unit 100, the electrical component box 8 is not only the elastic claw portion 85 of the electrical component box 8 but also the screw 87 of the casing body 1 from the panel 2 side via the screw fixing portion 86 of the electrical component box 8. The casing body 1 is also fixed by being attached to the hole 112.

  That is, in the indoor unit 100, the through hole 111 provided in the wall part 110 of the casing body 1, the elastic claw part 85 provided in the first part 81 of the electrical component box 8, and the screw hole part of the casing body 1. 112, the screw fixing portion 86 of the electrical component box 8, and the screw 87 constitute an attachment structure portion of the electrical component box 8 to which the electrical component box 8 can be attached and removed from the panel 2 side.

  According to the indoor unit 100, the electrical component box 8 is arranged so that the operation board 91 is exposed from the panel opening 2 a of the panel 2 and the operation unit 91 can be operated. Thereby, since the operation part 91 of the operation board 90 can be operated without positioning the electrical component box 8 outside the casing, the highly convenient indoor unit 100 of the air conditioner can be realized.

  Further, the electrical component box 8 is arranged so that only the second portion 82 in which the operation substrate 90 is accommodated is exposed from the panel opening 2 a of the panel 2. Thereby, for example, compared with the indoor unit of the air conditioner in which the electrical component box is arranged so that the first part and the second part are exposed from the panel opening of the panel, the electrical equipment in the panel opening 2a of the panel 2 The space occupied by the product box 8 can be omitted, and the casing can be downsized.

  The electrical component box 8 includes an electrical component opening 83 that is provided in the second portion 82 and can expose the operation substrate 90, and a cover 84 that covers the electrical component opening 83 so that the electrical component opening 83 can be opened and closed. Thereby, since the operation board 90 can be easily exposed when necessary, the highly convenient indoor unit 100 of an air conditioner can be realized.

  Moreover, the electrical component box 8 can further be attached from the panel 2 side, and the attachment structure part of the electrical component box 8 which can be removed is further provided. As a result, the electrical component box 8 can be easily attached to the casing body 1 from the panel 2 side, and the electrical component box 8 can be easily detached from the casing body 1. The indoor unit 100 can be realized.

  Note that the electrical component box 8 is not limited to the above-described embodiment, as long as the operation board 90 accommodated therein is exposed from the panel opening 2a of the panel 2 and the operation unit 91 can be operated. For example, the shape of the electrical component box 8 is not limited to the L shape, and may be a rectangular parallelepiped shape. In this case, the electrical component box 8 may be disposed such that the operation substrate 90 is disposed at one end in the longitudinal direction so that the operation substrate 90 is exposed from the panel opening 2a.

  Further, for example, the electrical component opening 83 provided in the second portion 82 and the cover 84 covering the electrical component opening 83 may be omitted, or the operation accommodated in the second portion 82. Other configurations that allow exposure of the substrate 90 from the panel opening 2a may be employed.

  Moreover, you may abbreviate | omit the attachment structure part of the electrical component box 8 if possible. Further, the mounting structure portion of the electrical component box 8 may be constituted by, for example, the screw fixing portion 86 of the electrical component box 8, the screw 87, and the screw hole portion 112 of the casing body 1, or from the panel 2 side. Instead, the electrical component box 8 may be configured to be attached and detached from a direction orthogonal to the wall 110 of the casing body 1.

  Further, the centrifugal fan is not limited to the turbo fan 30 and may be a centrifugal fan having another configuration.

  An example of the turbo fan 30, the heat exchanger 40, and the partition plate 50 is shown in FIG. The casing body 1 in FIG. 8 includes a first wall portion 11 on the air outlet 10 side, a second wall portion 12 facing the first wall portion 11, and between the first wall portion 11 and the second wall portion 12. And a third wall portion 14 and a fourth wall portion 14 that are opposed to each other.

  The heat exchanger 40 includes, in plan view, a first heat exchange unit 41, a second heat exchange unit 42 located upstream of the first heat exchange unit 41 in the rotational direction of the turbofan 30, and the first heat exchange unit 41. A third heat exchanging part 43 located downstream of the heat exchanging part 41 in the rotational direction of the turbofan 30.

  Then, both ends of the heat exchanger 40 are connected via the arc-shaped partition plate 50, and the turbo fan 30 is surrounded by the heat exchanger 40 and the partition plate 50.

  The pipe connection parts 5 and 6 are connected to the end part of the third heat exchange part 43 of the heat exchanger 40. In addition, a drain pump 70 is disposed in the casing body 1 and on the second wall 12 side between the partition plate 50 and the second wall 12.

  The heat exchanger 40 is not limited to the case where the heat exchanger 40 includes the first heat exchange unit 41, the second heat exchange unit 42, and the third heat exchange unit 43. For example, the heat exchanger 40 has an arc shape or a V shape. It may be a heat exchanger.

  By appropriately combining any of the above-described various embodiments or modifications, it is possible to achieve the respective effects. In addition, combinations of the embodiments, combinations of the examples, or combinations of the embodiments and examples are possible, and combinations of features in different embodiments or examples are also possible.

DESCRIPTION OF SYMBOLS 1 Casing main body 1a Suction inlet 2 Panel 2a Panel opening part 2b Opening surface 2c Recessed part 2d Through-hole 3 Grill 4 Filter 5, 6 Refrigerant piping connection part 7 Drain socket 8 Electrical component box 81 1st part 82 2nd part 83 Electrical component opening Part 84 cover 85 elastic claw part 86 screw fixing part 87 screw 10 outlet 20 flap 30 turbo fan 31 rotary shaft 32 bell mouth 40 heat exchanger 50 partition plate 60 drain pan 90 operation board 91 operation unit 100 indoor units 101, 102, 103 , 104 Suspension fitting 110, 120 Wall part 111 Through hole 112 Screw hole part

Claims (4)

Casings (1, 2, 3);
A centrifugal fan (30) disposed inside the casing (1, 2, 3);
An electrical component box (8) in which an operation board (90) having an operation unit (91) is housed;
The casing (1, 2, 3) is
A casing body (1) in which the centrifugal fan (30) is disposed;
A panel (2) having an opening surface (2b) attached to the casing body (1) and provided with a panel opening (2a) capable of exposing the centrifugal fan (30);
The electrical component box (8)
The indoor unit of an air conditioner, wherein the operation board (90) is exposed from the panel opening (2a), and the operation unit (91) is arranged to be operable. In the indoor unit of the air conditioner according to claim 1,
The electrical component box (8)
A first portion (81) extending in a direction intersecting the opening surface (2b);
An air conditioner indoor unit having a second portion (82) extending along the opening surface (2b) and accommodating the operation board (90) therein. In the indoor unit of the air conditioner according to claim 2,
The electrical component box (8)
An electrical component opening (83) provided in the second part (82) and capable of exposing the operation board (90);
An indoor unit of an air conditioner having a cover (84) that covers the electrical component opening (83) so as to be openable and closable. In the indoor unit of the air conditioner of any one of Claim 1 to 3,
An air conditioner further comprising a mounting structure (85, 86, 87, 111, 112) of the electrical component box (8) to which the electrical component box (8) can be mounted and removed from the panel (2) side. Indoor unit.

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