JP2943718B2 - Air conditioner indoor unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of an indoor unit of an air conditioner, and more particularly to an improvement in a structure for performing services such as pipe connection.

[0002]

2. Description of the Related Art The structure of an indoor unit disclosed in Japanese Utility Model Publication No. 6-20027 will be described with reference to FIG. FIG. 7 is a perspective view of the indoor unit main body of the air conditioner as viewed from obliquely below. In FIG. 7, reference numeral 51 denotes an indoor unit main body, and the indoor unit main body 51 has a rear surface attached to a mounting plate 53 fixed to a wall 52. On the back side of the bottom frame 54 that constitutes the bottom wall of the indoor unit main body 51, a service that can be put in hand when connecting a refrigerant pipe or the like derived from the wall 52 to the refrigerant circuit on the indoor unit main body side. Notch 55
The notch 5 is provided after the service is completed.
The service lid 56 is detachably attached to the housing 5 using an engagement structure or the like.

[0003]

Such an indoor unit has the following problems.
Since the service lid 56 is attached to the notch 55 on the rear side of the bottom frame, the work can be performed at the time of assembling the product, packing and transporting, or handling the cargo at the time of installation at the site (hereinafter referred to as product assembling). In some cases, the user may hold the service lid 56 and handle it. At that time, the service lid 56 may be detached, and the indoor unit may fall to cause damage or an accident. Further, even if the service lid 56 is temporarily fixed to the bottom frames 54 on both sides with adhesive tape in order to prevent the service lid 56 from being inadvertently detached, the adhesive tape peeled off at the time of installation at the site becomes garbage, Problems such as adhesive residue and the like occur in the pasted portion, which is not preferable. Further, the notch 55
The bottom frame 54 during molding of the indoor unit body 51
Warpage and deformation.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks, and an object thereof is to dispose a member connected to a bottom frame near a service lid attached to a notch. Even if the service lid is removed when assembling the product, if it comes off, a firm clue will be made so that the indoor unit will not be dropped immediately, and the drop of the indoor unit or the occurrence of an injury accident etc. In addition to eliminating the need for measures to temporarily fix the service lid to the bottom frame with adhesive tape, the generation of dust and the occurrence of adhesive residue on the product during installation is eliminated, and the above-mentioned connecting member is used when molding the indoor unit body. An object of the present invention is to prevent warpage and deformation of the bottom frame.

[0005]

Therefore, in the air conditioner indoor unit according to the first aspect of the present invention, a service notch 5 is provided on the frame 4 of the indoor unit main body 1 and a service cover 7 covering the notch 5 is provided. In an indoor unit of an air conditioner that is detachably attached to the frame 4, the frame 4
Further, a bridging bar 9 is provided to connect both ends 4a, 4a of the notch 5 on the opening side.

In the indoor unit of the air conditioner according to the first aspect,
Even if a worker holds the service lid 7 from the opening side of the cutout 5 and comes off when the product is assembled, the bridging bar 9 provided on the frame 4 is engaged, so that the indoor unit does not drop immediately. In addition, it is possible to prevent the indoor unit from being dropped or damaged, or an accident to occur.

[0007] The indoor unit of the air conditioner according to claim 2 is characterized in that the service lid 7 is locked to the bridging bar 9.

[0008] In the indoor unit of the air conditioner according to the second aspect,
Since the service lid 7 is locked to the bridging bar 9, the service lid 7 is unlikely to be accidentally detached during product assembly or the like, and the occurrence of an indoor unit falling damage or an injury accident during product assembly or the like is reliably prevented. It becomes possible. In addition, since there is no need to take measures to temporarily fix the service lid 7 to the frame 4 with an adhesive tape, there is no generation of dust at the time of installation or generation of adhesive residue on the product.

The indoor unit of the air conditioner according to claim 3 is
The bridging bar 9 is characterized by being formed integrally with the frame 4.

[0010] In the indoor unit of the air conditioner according to the third aspect,
The reinforcing effect of the bridging bar 9 makes it possible to prevent the frame 4 from being deformed or warped near the notch 5 when the indoor unit body is formed.

According to a fourth aspect of the present invention, the bridging bar 9 is provided so as to be removable from the frame 4.

[0012] In the indoor unit of the air conditioner according to the fourth aspect,
By removing the bridging bar 9 at the time of service work after the completion of product assembly, etc., it is possible to improve the service workability while preventing the occurrence of an indoor unit from being dropped or damaged or causing an injury accident during product assembly or the like. It becomes possible.

[0013]

Next, a specific embodiment of an indoor unit according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is an embodiment of the present invention, and is a diagram in which an indoor unit in an attached state is viewed from obliquely right below toward a wall surface.

In FIG. 1, reference numeral 1 denotes a box-shaped indoor unit main body, which is attached to a mounting plate 3 fixed to a wall 2. A refrigerant pipe led out of the wall 2 is provided on the rear side of a frame 4. And the like are provided with a service notch 5 through which a hand can be put in when connecting to the refrigerant circuit of the indoor unit main body side.
Is detachably attached using an engagement structure or the like.

As shown by the broken lines in FIG. 1, two hooks 8, 8 are provided on the inner surface of the bottom frame 4 to be engaged with the mounting plate 3. The notch 5
Are formed.

The bottom frame 4 is integrally formed with a bridging bar 9 for connecting the both ends 4a, 4a of the notch 5 on the rear opening side. The bridging bar 9 can be cut near its both ends by nippers or the like.

The structure for attaching the service lid 7 to the notch 5 will be described with reference to FIGS. The bottom frame 4 around the notch 5 is formed to be concave so that the service lid 7 can be stored therein, and the bridging bar 9 is formed flush with this. On the other hand, on the inner surface of the service lid 7, hooks 11 locked to the bottom frame 4 around the notch 5 and the bridging bar 9 are provided.
To 13 are integrally formed. That is, the service lid 7
Hooks 11... That sunk into the inner surface of the bottom frame 4 facing the center of the notch 5 near the center of the notch 5, and a hook 1 for holding the rear end of the bridging bar 9 at the rear end of the service lid 7.
Are formed at the side ends of the service cover 7 and hooks 13. Therefore, when the service lid 7 is brought close to the notch 5 and the hooks 11 are hooked on the inner surface of the bottom frame 4 and the service lid 7 is rotated around the hooks, the hooks 12. Engage the end and hook 13
Are fitted on the inner wall of the screwed portion 15 and the service cover 7
Is attached to the notch 5 (see FIG. 4). Then, the service lid 7 is removed from the notch 5 by the reverse operation.

As shown in FIGS. 1 and 2, the notch 5
Screws 14 for screwing the bottom frame 4 to the mounting plate 3 are provided at portions of the bottom frame 4 on both sides covered by the service lid 7.
Is provided. The screwing portion 15 is provided in a concave portion 16 formed so as to be able to store the service lid 7 in the bottom frame 4. As shown in FIG. 5, the screwed portion 15 is
6 has a threaded surface 15a which is further recessed from 6, and is formed approximately 45 degrees downward from horizontal so that the indoor unit in the installed state faces forward when viewed obliquely from below. On the other hand, as shown in FIGS. 5 and 6, the mounting plate 3 is also provided with a contact surface 3a that comes into contact with the screw surface 15a from the back, and the screw 14 passes through the screw hole of the screw surface 15a and contacts the screw surface 15a. It can be screwed into the female screw hole of the contact surface 3a.

In the indoor unit of the air conditioner having the above structure, the bridging bar 9 is formed integrally with the bottom frame 4, and the service lid 7 is engaged with the bridging bar 9. Therefore, even if the worker holds the service cover 7 during product assembly, etc.
The service lid 7 does not easily come off, thereby preventing the indoor unit from being dropped or damaged, or an accident or the like from occurring. Also, since there is no need to take measures to temporarily fix the service lid 7 to the bottom frame 4 with the adhesive tape, there is no generation of dust at the time of installation and no adhesive residue on the product. Further, since the bridging bar 9 is formed integrally with the bottom frame 4, the reinforcing action of the bridging bar 9 prevents the bottom frame 4 from warping or deforming due to contraction of the notch 5 during molding of the indoor unit main body. In addition, since the bridging bar 9 can be cut near both ends by nippers or the like, the bridging bar 9 can be removed at the time of service and a wide work space can be secured to improve workability.

In the above description, the service lid 7 and the bridging bar 9 are connected. However, even if the service lid 7 is not connected, if the operator holds the service lid 7 and removes it, the bridging bar 9 is next connected. In this configuration, it is possible to prevent the indoor unit from being dropped or damaged, an accident, or the like.

Further, the bottom frame 4 is attached to the mounting plate 3 at the portion of the bottom frame 4 on both sides of the cutout portion covered by the service lid 7.
A screwing portion 15 is provided through which a screw 14 for screwing the bottom unit 4 is attached. Therefore, when the bottom frame 4 is screwed to the mounting plate 3 by the screw 14 passing through the screwing portion 15, the floating of the indoor unit main body 1 is prevented. Is done. In this case, since the head of the screw 14 is covered with the service cover 7, the appearance can be kept good without attaching a screw cover. Moreover, the bottom frame 4 is provided by the screws 14.
Is directly screwed to the mounting plate 3, so that an auxiliary mounting bracket is unnecessary.

Although it is not always necessary to make the periphery of the service cover 7 flush, the bottom frame 4 on both sides of the cutout is formed in the above-described embodiment, and the screwed portion 15 is provided in the recessed portion 16. When the service lid 7 is stored in the recess 16, the surface thereof is flush with the bottom frame 4, and the appearance is excellent in aesthetics.

Further, although the structure for locking the bottom frame 4 to the mounting plate 3 is not specified, in the above embodiment, the bottom frame 4 has at least two hooking claws 8 locked to the mounting plate 3. Since the notch 5 is formed between the hooks 8, 8, the bottom frame 4 is locked to the mounting plate 3 by at least two hooks 8, 8. Since the screw is screwed to the mounting plate 3 by at least two screws 14, the floating of the indoor unit main body 1 is reliably prevented, and the deformation and waving of the bottom frame 4 are suppressed. In addition, it is possible to prevent the indoor unit main body 1 from being shifted toward the ceiling due to a shift in the relative relationship between the indoor unit and the pipe through hole.

[0024]

According to the air conditioner indoor unit of the first aspect, even when an operator holds the service lid from the opening side of the cutout and removes the service lid during product assembly or the like, the bridging bar provided on the frame is provided. Therefore, the indoor unit is not immediately dropped, and the indoor unit is prevented from being dropped, damaged, or injured.

In the indoor unit of the air conditioner according to the second aspect,
Since the service lid is locked to the bridging bar, it is difficult for the service lid to be accidentally detached during product assembly, etc., and it is possible to reliably prevent the occurrence of indoor unit falling damage and accidents during product assembly etc. Becomes Further, since there is no need to take measures to temporarily fix the service lid to the frame with the adhesive tape, there is no generation of dust at the time of installation and no generation of adhesive residue on the product.

Furthermore, in the indoor unit of the air conditioner according to the third aspect, it is possible to prevent deformation, warping, and the like of the frame generated near the cutout portion during molding of the indoor unit main body by the reinforcing effect of the bridging bar.

In the indoor unit of the air conditioner according to the fourth aspect,
By removing the bridging bar during service work after product assembly etc. is completed, it is possible to improve service workability while preventing the occurrence of indoor unit falling damage and injury accidents during product assembly etc. Becomes

[Brief description of the drawings]

FIG. 1 is a perspective view of an indoor unit according to an embodiment of the present invention as viewed from a diagonally lower right toward a wall surface in a mounted state.

FIG. 2 is an enlarged perspective view showing the vicinity of a notch in the embodiment.

3A is a sectional view taken along line AA of FIG. 2, and FIG.
FIG. 3 is a sectional view taken along line BB of FIG. 2.

FIG. 4 shows a state in which a service lid is attached to a notch.
FIG.

FIG. 5 is a diagram corresponding to FIG. 3, showing the vicinity of a screwed portion;

FIG. 6 is a front view of the mounting plate showing the vicinity of the contact surface.

FIG. 7 is a perspective view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Indoor unit main body 2 Wall 3 Installation plate 4 Bottom frame 4a End 5 Notch 7 Service lid 8 Hook claw 9 Bridge bar 14 Screw 15 Screw hitting part 16 Concave part

Claims (4)

(57) [Claims] 1. A service notch (5) is provided in a frame (4) of an indoor unit main body (1), and a service lid (7) covering the notch (5) is detachably attached to the frame (4). In an indoor unit of an air conditioner that is mounted as possible, a bridging bar (9) is provided on the frame (4) to connect both ends (4a) and (4a) of the opening side of the cutout (5). An indoor unit of an air conditioner, characterized in that: 2. The air conditioner indoor unit according to claim 1, wherein the service lid (7) is configured to be locked to the bridging bar (9). 3. The indoor unit of an air conditioner according to claim 1, wherein the bridging bar (9) is formed integrally with the frame (4). 4. The indoor unit for an air conditioner according to claim 1, wherein the bridging bar (9) is provided so as to be removable from the frame (4).