Air conditioner indoor unit

Abstract

To propose an indoor unit of an air-conditioner capable of fixing a bottom frame to an installing plate from a front surface even if there is no work space on a lower side of the bottom frame.SOLUTION: An indoor unit 1 is equipped with an installing plate (100), and a bottom frame (20) attached to the installing plate (100). The bottom frame (20) has a tool insertion space (S2) extending rearward from an opening (21c) provided on a front surface of the bottom frame (20). On a wall portion (28) on the rear side forming the tool insertion space (S2) of the bottom frame (20), a fixing structure (F) for fixing the wall portion (28) to the installing plate (100) is provided.SELECTED DRAWING: Figure 11

Description

[Technical field]

[0001] The present disclosure relates to an indoor unit of an air conditioner. [Background technology]

[0002] Conventionally, indoor units of air conditioners include those that include a casing having a front panel and a bottom frame to which the front panel is attached, and are attached to a wall surface inside the room via a mounting plate (see, for example, JP 10-73278 A (Patent Document 1)).

[0003] In the above indoor unit, the bottom frame is fixed to the mounting plate by fastening screws from diagonally below the casing body. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP-A-10-73278 (Fig. 8) Summary of the Invention [Problem to be solved by the invention]

[0005] However, with the above indoor unit, if there is an obstacle below the casing body that prevents the hand from reaching in, the tool for fastening the screws cannot be operated, and the bottom frame cannot be fixed to the mounting plate.

[0006] The present disclosure proposes an indoor unit for an air conditioner in which the bottom frame can be fixed to the mounting plate from the front even if there is no working space around the casing body. [Means for solving the problem]

[0007] The indoor unit of the air conditioner disclosed herein comprises: A mounting plate; A bottom frame attached to the mounting plate; Equipped with The bottom frame has a tool insertion space extending rearward from an opening provided on a front surface of the bottom frame, A fixing structure is provided on a rear wall portion of the bottom frame which defines the tool insertion space, for fixing the wall portion to the mounting plate.

[0008] According to the present disclosure, the fixing structure provided on the rear wall portion that forms the tool insertion space of the bottom frame allows the bottom frame to be fixed to the mounting plate from the front even if there is no working space around the casing body.

[0009] In addition, in an indoor unit of an air conditioner according to one aspect of the present disclosure, The tool insertion space is tapered toward the rear side of the bottom frame.

[0010] According to the present disclosure, the tool insertion space is shaped to taper toward the rear side of the bottom frame, making it easy to insert a rod-shaped tool such as a screwdriver.

[0011] In addition, in an indoor unit of an air conditioner according to one aspect of the present disclosure, The bottom surface of the tool insertion space is inclined obliquely downward toward the front.

[0012] According to the present disclosure, the bottom surface of the tool insertion space is inclined diagonally downward toward the front, so that even if a fastening part such as a screw attached to the tip of the tool comes loose, the fastening part falls toward the front, making it easy to retrieve the fastening part.

[0013] In addition, in an indoor unit of an air conditioner according to one aspect of the present disclosure, the fixing structure includes a screw for fastening to the mounting plate, and a hole provided in the wall portion through which the screw is inserted, The wall portion is perpendicular to a direction in which a rod-shaped tool is inserted into the tool insertion space.

[0014] According to the present disclosure, the wall portion is perpendicular to the direction in which a rod-shaped tool is inserted into the tool insertion space, which makes it easy to fix the wall portion to the installation plate with fastening parts such as screws.

[0015] In addition, in an indoor unit of an air conditioner according to one aspect of the present disclosure, The tool insertion space is provided horizontally along the bottom frame.

[0016] According to the present disclosure, the tool insertion space is provided horizontally along the bottom frame, making it easy to operate a rod-shaped tool from the front.

[0017] In addition, in an indoor unit of an air conditioner according to one aspect of the present disclosure, A cover is provided to cover the opening in the bottom frame.

[0018] According to the present disclosure, a cover is provided to cover the opening of the bottom frame, so that the aesthetic appearance of the front surface can be maintained.

[0019] In addition, in an indoor unit of an air conditioner according to one aspect of the present disclosure, The bottom frame has all or a part of an outlet passage through which conditioned air is blown out, The cover is a part of the scroll surface that defines the outlet passage.

[0020] According to the present disclosure, since the cover is part of the scroll surface that forms the outlet passage, the space in front can be utilized more effectively than if the cover were provided outside the outlet passage, which contributes to miniaturization.

[0021] In addition, in an indoor unit of an air conditioner according to one aspect of the present disclosure, The bottom frame has a first member including a lower portion forming the tool insertion space, and a second member including an upper portion forming the tool insertion space.

[0022] According to the present disclosure, a bottom frame is formed by combining a first member including a lower portion that forms the tool insertion space and a second member including an upper portion that forms the tool insertion space, making it easy to form the tool insertion space in the bottom frame. [Brief description of the drawings]

[0023] [Figure 1] 1 is an external view of an indoor unit of an air conditioner according to an embodiment of the present disclosure, viewed from the front and diagonally below. [Diagram 2] FIG. 2 is an external view of the indoor unit and the mounting plate seen from behind and diagonally above. [Diagram 3] FIG. [Figure 4] FIG. 2 is a cross-sectional view taken along line IV-IV in FIG. [Diagram 5] FIG. 5 is an enlarged view of a main part of FIG. [Figure 6] FIG. 2 is a front view of the main parts of the indoor unit. [Figure 7] FIG. 2 is a front view of the main parts of the indoor unit with the cover removed. [Figure 8] This is an external view of the main parts of the rear part of the bottom frame of the indoor unit, viewed from behind and diagonally below. [Figure 9] FIG. 13 is an external view of the mounting plate seen from the front and diagonally above. [Figure 10] 13 is an external view of the main parts with the mounting plate attached to the bottom frame, viewed from the rear and diagonally below. FIG. [Figure 11] 11 is a cross-sectional view showing a state in which a screwdriver is inserted into a second insertion space of the bottom frame. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Hereinafter, an embodiment will be described. In the drawings, the same reference numerals represent the same or corresponding parts. In addition, the dimensions in the drawings, such as length, width, thickness, and depth, are appropriately changed from the actual scale for clarity and simplification of the drawings, and do not represent the actual relative dimensions. In the drawings, the left-right direction is the x-axis direction, the front-back direction is the y-axis direction, and the up-down direction is the z-axis direction.

[0025] FIG. 1 is an external view of an indoor unit 1 of an air conditioner according to an embodiment of the present disclosure, viewed from the front and diagonally below.

[0026] As shown in Fig. 1, this indoor unit 1 has a grill 10 and a front panel 11 that covers the front surface of the grill 10, and also has an intake port 10a above the grill 10 and an exhaust port 10b in front of and below the grill 10. In Fig. 1, reference numeral 60 denotes a cover.

[0027] FIG. 2 is an external view of the indoor unit 1 and the mounting plate 100 as viewed from behind and diagonally above, and FIG.

[0028] 2 and 3, the indoor unit 1 includes a bottom frame 20 to which a blower fan 30 and a heat exchanger 40 are attached. The bottom frame 20 is covered with a grill 10 except for the rear side.

[0029] FIG. 4 is a cross-sectional view taken along line IV-IV in FIG.

[0030] 4, the bottom frame 20 has a bottom frame front portion 21 having a front drain pan 21a, and a bottom frame rear portion 22 having a rear drain pan 22a. The bottom frame front portion 21 is an example of a first member, and the bottom frame rear portion 22 is an example of a second member.

[0031] A blower fan 30 is disposed between the bottom frame front part 21 and the bottom frame rear part 22. An outlet passage PA that guides conditioned air from the blower fan 30 to the air outlet 10b is formed between the bottom frame front part 21 and the bottom frame rear part 22. The bottom frame 20 has a front part (or a part) of the outlet passage PA.

[0032] In addition, a mounting recess 22b is provided on the rear surface of the upper part of the bottom frame rear portion 22, and a locking piece 102 of the installation plate 100 is inserted into the mounting recess 22b.

[0033] Fig. 5 is an enlarged view of the main part of Fig. 4. As shown in Fig. 5, a frame part 27 extending rearward (to the right in Fig. 5) is provided at the lower part of the bottom frame rear part 22. The frame part 27 has a top part 27a and side wall parts 27b provided on both the left and right sides (only one of them is shown in Fig. 5).

[0034] In addition, a wall portion 28 extending downward is provided at the rear end of the frame portion 27. Furthermore, a hole 28a is provided in the wall portion 28, through which a screw 29 is inserted. The screw 29 inserted into the hole 28a in the wall portion 28 is fastened to a screw hole 114 provided in a bent portion 113 of the mounting plate 100, thereby fixing the wall portion 28 to the mounting plate 100.

[0035] Hole 28 a in wall portion 28 , screw 29 , and screw hole 114 provided in bent portion 113 of mounting plate 100 constitute a fixing structure F for fixing to mounting plate 100 .

[0036] The lower part of the frame portion 27 is covered by the bottom frame front portion 21 and the grill 10. The cylindrical portion 23, the bottom frame front portion 21, and the grill 10 form a second insertion space S2.

[0037] An opening 21c is provided on the front surface of the bottom frame 20 as an opening provided on the front surface of the bottom frame front part 21. A second insertion space S2 extends from the opening 21c toward the rear surface. The opening 21c is covered by a cover 60. The cover 60 is detachably attached to the bottom frame front part 21.

[0038] FIG. 6 shows a front view of the main parts of the indoor unit 1, and the cover 60 is a part of the scroll surface Sc (shown in FIG. 4) that forms the outlet passage PA (shown in FIG. 4).

[0039] 7 shows a front view of the main parts of the indoor unit 1 with the cover 60 removed, and the bottom frame front part 21 has an opening 21b communicating with the first insertion space S1 and an opening 21c communicating with the second insertion space S2. Here, the second insertion space S2 is an example of a tool insertion space, and is a space into which a screwdriver 50 is inserted to fix the bottom frame 20 to the mounting plate 100 with the screws 29. The screwdriver 50 is an example of a rod-shaped tool.

[0040] In addition, openings 21b and 21c are provided at symmetrical positions on the bottom frame 20 of the indoor unit 1, and a first insertion space S1 connected to opening 21b is formed, and a second insertion space S2 connected to opening 21c is formed.

[0041] Fig. 8 is an external view of the main parts of the bottom frame rear part 22 as seen from behind and diagonally below, showing a cross section of the bottom frame rear part 22 as seen from line IV-IV in Fig. 1. As shown in Fig. 8, the bottom frame 20 is provided with a tube part 23, a wall part 25, and a protrusion 26 at symmetrical positions on the left and right.

[0042] Similarly, the bottom frame 20 is provided with frame portions 27 at positions symmetrical to the left and right between the cylindrical portions 23. The frame portions 27 are each provided with a wall portion 28 at the rear end thereof having an oblong hole 28a for a screw.

[0043] Fig. 9 is an external view of the mounting plate 100 seen from the front and diagonally above. As shown in Fig. 9, the mounting plate 100 has a rectangular base 101, locking pieces 102 provided at intervals on the upper side of the base 101, an extension 103 extending downward from one side of the lower side of the base 101, and an extension 104 extending downward from the other side of the lower side of the base 101.

[0044] The mounting plate 100 also has an inclined portion 111 that extends forward and diagonally downward from the lower end of the extension portion 103, and a bent portion 113 that extends forward and bends downward from the lower end of the extension portion 103. A rectangular engagement hole 112 is provided in the inclined portion 111. Two screw holes 114 are provided in the bent portion 113 spaced apart in the left-right direction.

[0045] The mounting plate 100 also has an inclined portion 121 that extends forward and diagonally downward from the lower end of the extension portion 104, and a bent portion 123 that extends forward from the lower end of the extension portion 104 and bends downward. A rectangular engagement hole 122 is provided in the inclined portion 121. Two screw holes 124 are provided in the bent portion 123 with a gap in between in the left-right direction.

[0046] 10 is an external view of the main parts of the bottom frame 20 with the mounting plate 100 attached thereto, viewed from behind and diagonally below. The projections 26 of the bottom frame 20 engage with the engagement holes 112, 122 of the mounting plate 100. Also, the holes 28a (shown in FIG. 8) in the wall portion 28 of the bottom frame 20 face the screw holes 114, 124 (shown in FIG. 9) of the mounting plate 100. Here, the locking pieces 102 (shown in FIG. 9) of the mounting plate 100 are inserted into the mounting recesses 22b (shown in FIG. 4) provided on the upper and rear surface of the bottom frame 20.

[0047] Fig. 11 is a cross-sectional view showing a state in which a screwdriver 50 is inserted into the second insertion space S2 of the bottom frame 20 in the indoor unit 1. As shown in Fig. 11, the screwdriver 50, with a screw 29 attached to the tip, is inserted into the second insertion space S2 from the opening 21c of the bottom frame front part 21 from which the cover 60 has been removed. The screw 29 is inserted into the hole 28a of the wall part 28.

[0048] The wall portion 28 is fixed to the mounting plate 100 by turning the screwdriver 50 and tightening the screws 29 into the screw holes 114 of the mounting plate 100. The mounting plate 100 has two screw holes 114 spaced apart in the left-right direction, and the screws 29 are tightened into the two screw holes 114, respectively.

[0049] Similarly, in the other wall portion 28 of the bottom frame 20, the screw 29 inserted through the hole 28a of the wall portion 28 is tightened into the screw hole 124 of the mounting plate 100 (shown in FIG. 9).

[0050] When installing the indoor unit 1, first, the mounting plate 100 is attached to the wall surface inside the room, and then, with the upper part of the indoor unit 1 tilted toward the wall surface, the locking pieces 102 of the mounting plate 100 are inserted into the mounting recesses 22b (shown in FIG. 4) provided on the upper and rear surface of the bottom frame 20. Next, the lower part of the indoor unit 1 is brought close to the mounting plate 100 so that the projections 26 of the bottom frame 20 engage with the engagement holes 112, 122 of the mounting plate 100.

[0051] After that, a screwdriver 50 is inserted into the second insertion space S2 (tool insertion space) of the bottom frame 20 and the screws 29 are tightened through the wall portion 28 of the bottom frame 20 into the screw holes 114, 124 of the mounting plate 100, thereby fixing the bottom frame 20 to the mounting plate 100.

[0052] According to the air conditioner indoor unit 1 configured as described above, the fixing structure F provided on the rear wall 28 forming the second insertion space S2 (tool insertion space) of the bottom frame 20 allows the bottom frame 20 to be fixed to the mounting plate 100 from the front, even if there is no work space below the bottom frame 20.

[0053] Furthermore, since the wall portion 28 is perpendicular to the direction in which the screwdriver 50 (rod-shaped tool) is inserted into the second insertion space S2 (tool insertion space), the wall portion 28 can be easily fixed to the installation plate 100 with the screws 29.

[0054] In addition, since the second insertion space S2 (tool insertion space) is provided horizontally along the bottom frame 20, the screwdriver 50 (rod-shaped tool) can be easily operated from the front.

[0055] In addition, a cover 60 is provided to cover the opening 21c of the bottom frame 20, so that the beauty of the front view can be maintained.

[0056] Since the cover 60 is a part of the scroll surface Sc that forms the outlet passage PA, the space in front can be used more effectively than if a cover were provided outside the outlet passage PA, which contributes to miniaturization.

[0057] The bottom frame 20 is formed by combining a bottom frame front portion 21 (first member) including a lower portion that forms the second insertion space S2 (tool insertion space) and a bottom frame rear portion 22 (second member) including an upper portion that forms the second insertion space S2, making it easy to form the second insertion space S2 in the bottom frame 20.

[0058] In another embodiment, at least one of the width in the left-right direction and the width in the up-down direction of the tool insertion space may be tapered toward the rear side of the bottom frame 20. This makes it easier to insert a rod-shaped tool such as a screwdriver.

[0059] The bottom surface of the second insertion space S2 (tool insertion space) may be inclined obliquely downward toward the front. In this case, even if a fastening part such as a screw attached to the tip of a tool comes off, it falls toward the front, making it easy to collect the fastening part.

[0060] In the above embodiment, the second insertion space S2 (tool insertion space) is formed extending rearward from the opening 21c provided on the front and lower side of the bottom frame 20, but the present invention is not limited to this and the tool insertion space may be provided on the front side of the bottom frame. For example, the tool insertion space may be provided on the front and upper part of the bottom frame. This allows the bottom frame to be fixed to the mounting plate from the front even if there is no working space around the casing body.

[0061] Although specific embodiments of the present disclosure have been described, the present disclosure is not limited to the above embodiments, and various modifications can be made within the scope of the present disclosure. [Explanation of symbols]

[0062] 1...Indoor unit 10. Grill 10a…Suction port 10b...Air outlet 11…Front panel 20…Bottom frame 21...Front part of bottom frame (first member) 21a…Front drain pan 21b…Aperture 21c…Aperture 22...Rear part of bottom frame (second member) 22a…Rear drain pan 22b...Mounting recess 23...Cylinder part 25…Wall part 26…Protrusion 27…Frame 27a…Heaven 27b...Side wall part 28...Wall part 28a…hole 29…Screw 30…Ventilation fan 40...Heat exchanger 50…Driver 60…Cover 100...Installation plate 101...Rectangular base 102...Latching piece 103,104...extension part 111,121...Slope part 112, 122...Engagement holes 113,123…Bend 114,124…Screw holes F…Fixed structure PA…Blowout passage S1: First insertion space S2: Second insertion space (tool insertion space) Sc...Scroll surface

Claims

1. A mounting plate (100); a bottom frame (20) attached to the mounting plate (100) and having a front surface and a rear surface provided rearward of the front surface; Equipped with The bottom frame (20) has a tool insertion space (S2) extending from an opening (21c) provided in the front portion of the bottom frame (20) toward the rear portion, the tool insertion space (S2) of the bottom frame (20) is formed by left and right side wall portions (27b) provided on the lower portion of the bottom frame (20) and a wall portion (28) on the rear surface side provided at the rear ends of the side wall portions (27b), An indoor unit (1) for an air conditioner, wherein a fixing structure (F) for fixing the wall portion (28) to the mounting plate (100) includes a hole (28a) provided in the wall portion (28), a screw hole (114) provided in the mounting plate (100), and a screw (29) inserted into the hole (28a) and tightened into the screw hole (114).

2. In the indoor unit (1) of the air conditioner according to claim 1, The tool insertion space (S2) has a shape tapered toward the rear side of the bottom frame (20).

3. In the indoor unit (1) of the air conditioner according to claim 1 or 2, In the indoor unit (1) of the air conditioner, the bottom surface of the tool insertion space (S2) is inclined obliquely downward toward the front.

4. In the indoor unit (1) of an air conditioner according to any one of claims 1 to 3, The wall portion (28) is perpendicular to a direction in which a rod-shaped tool is inserted into the tool insertion space (S2).

5. In the indoor unit (1) of an air conditioner according to any one of claims 1 to 4, The tool insertion space (S2) is provided horizontally along the bottom frame (20).

6. In the indoor unit (1) of an air conditioner according to any one of claims 1 to 5, The indoor unit (1) of the air conditioner is provided with a cover (60) that covers the opening (21c) of the bottom frame (20).

7. In the indoor unit (1) of an air conditioner according to claim 6, The bottom frame (20) has all or a part of an outlet passage (PA) through which conditioned air is blown out, The cover (60) is a part of a scroll surface (Sc) that forms the outlet passage (PA), in the indoor unit (1) of the air conditioner.

8. In the indoor unit (1) of an air conditioner according to any one of claims 1 to 7, The bottom frame (20) has a first member (21) including a lower portion that forms the tool insertion space (S2), and a second member (22) including an upper portion that forms the tool insertion space (S2), and the air conditioner indoor unit (1).

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