JP3928294B2 - Embedded ceiling air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ceiling-embedded air conditioner, and more particularly to a structure that can sufficiently secure a handling space such as wiring in an electrical component box.
[0002]
[Prior art]
For example, as shown in FIG. 11, a conventional ceiling-embedded air conditioner includes a suction grill that forms a suction port 2 in the center at the bottom opening of a case body 1 embedded in a ceiling, A decorative panel 4 having an air outlet 3 is provided, a blower 5 and a heat exchanger 6 are provided in an air passage connecting the air inlet 2 and the air outlet 3, and a bell mouth 7 ′ is provided inside the air inlet 2. The electric component box 9 covered by the electric component cover 10 is provided outside the bell mouth 7 '.
[0003]
However, the electrical component box 9 has a problem that it is difficult to secure a sufficient space for wiring inside because the side wall 9a is located outside the bell mouth 7 ′.
[0004]
[Problems to be solved by the invention]
In view of the above problems, an object of the present invention is to provide a ceiling-embedded air conditioner that can sufficiently secure a wiring space such as wiring in an electrical component box.
[0005]
[Means for Solving the Problems]
In order to solve the above problems, the present invention is provided with a suction grille that forms a suction port at the center of the bottom opening of the case body embedded in the ceiling, and a decorative panel provided with a blower outlet around the suction grille. A blower and a heat exchanger are provided in an air passage connecting the suction port and the air outlet, a bell mouth is provided inside the suction port, and an electrical component box covered by an electrical cover is provided outside the bell mouth. In the ceiling-embedded air conditioner
The bell mouth is composed of a first bell mouth and a second bell mouth that are divided into upper and lower parts, and the second bell mouth has an opening facing the lower part of the side wall of the electrical component box and the electrical cover. The opening is closed by the electrical cover and an auxiliary side wall formed by extending the lower part of the side wall so as to be continuous with the electrical cover.
[0006]
In addition, a stepped portion is provided opposite to the auxiliary side wall and the electrical equipment cover, and the auxiliary side wall and the electrical equipment cover are joined without gaps by the same stepped portion.
[0007]
In addition, a hook receiving portion is provided on the auxiliary side wall, while a hook that is engaged with the hook receiving portion is provided on the electrical cover, and the hook is engaged with the hook receiving portion so that the auxiliary side wall and the electrical cover are spaced from each other. It becomes the composition which joined without.
[0008]
Moreover, it is the structure which provided the vent hole in the said air blower side of the said electrical component box, and the said electrical component cover.
[0009]
Further, the auxiliary side wall is provided with a mounting portion for attaching a thermistor that protrudes inwardly from the minimum inner diameter portion of the first bell mouth or the second bell mouth and detects the temperature of the suction air from the suction port. It has become.
[0010]
Moreover, it has the structure which provided the groove part corresponding to the front-end | tip part of said 1st bellmouth in the said air blower side of the said attaching part.
[0011]
Moreover, it has the structure which provided the protrusion part which has a vent hole in the said electrical equipment cover corresponding to the protrusion shape of the said attaching part.
[0012]
In addition, a protective net that protects the blower from being touched by fingers is continuously formed on the electrical cover.
[0013]
Further, the protection net has a configuration including a plurality of annular bars formed concentrically and a plurality of radial connection bars connecting the annular bars.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described as examples based on the accompanying drawings.
As shown in FIGS. 1 to 10, 1 is a case body of a ceiling-embedded air conditioner embedded in the ceiling, 4 is provided at the bottom opening of the case body 1, and a suction port 2 is formed in the center. A decorative panel having a suction grille and having a blower outlet 3 around it, 5 is a blower provided in an air passage connecting the suction port 2 and the blower port 3, 6 is a heat exchanger, and 7 and 8 are the suction ports. 2 is a bell mouth composed of a first bell mouth and a second bell mouth divided vertically, and 9 is an electrical component box provided outside the bell mouths 7 and 8 and covered by an electrical cover 10. It is.
[0015]
The bell mouth is composed of the first bell mouth 7 and the second bell mouth 8 which are divided into upper and lower portions as described above, and the second bell mouth 8 is connected to the lower portion of the side wall 9a of the electrical component box 9. And an opening facing the electrical component cover 10, and the opening is formed by extending the lower part of the side wall 9a with an extension 9b so as to be continuous with the electrical component cover 10 and the electrical component cover 10. It is configured to close with the auxiliary side wall 9c,
As a result, the lower end of the blower 5 can be pivotably accommodated between the side wall 9a and the first bell mouth 7 above the extension portion 9b. 7 and the outside of the second bell mouth 8, the side wall 9 a of the electrical component box 9 is not disposed, and there is sufficient wiring space A such as wiring as shown in FIG. 5 in the electrical component box 9. It becomes a structure that can be secured.
[0016]
Further, by providing a stepped portion a opposite to the auxiliary side wall 9c and the electrical cover 10, and by joining the auxiliary side wall 9c and the electrical cover 10 with no gap by the same stepped portion a, The configuration is such that air leakage of the intake air does not occur.
[0017]
In addition, the auxiliary side wall 9c is provided with a hook receiving portion b made of a locking hole, while the electrical cover 10 is provided with a hook c that is locked to the hook receiving portion b, and the hook c is engaged with the hook receiving portion b. Stopping and joining the auxiliary side wall 9c and the electrical cover 10 without gaps, so that the locations can be joined more accurately so that air leakage of the intake air does not occur from the joint It has become.
[0018]
Further, by providing a vent hole d as shown in FIG. 7 on the blower 5 side of the electrical component box 9 and the electrical component cover 10, the air permeability in the electrical component box 9 can be improved. The electric component attached to the substrate 11 in the electrical component box 9 can be effectively cooled.
[0019]
Further, as shown in FIG. 8, the auxiliary side wall 9c protrudes inwardly from the minimum inner diameter portion of the first bell mouth 7 or the second bell mouth 8, and the temperature of the suction air from the suction port 2 is set. By providing the mounting portion 12 for attaching the thermistor (not shown) to be detected, the temperature of the suction air from the suction port 2 can be accurately detected by the thermistor (not shown). Yes.
[0020]
Further, as shown in FIG. 9, a groove portion 12a corresponding to the tip of the first bell mouth 7 is provided on the mounting portion 12 on the blower 5 side, so that the first bell mouth 7 can be easily attached. It is configured to be able to.
[0021]
In addition, corresponding to the protruding shape of the mounting portion 12, as shown in FIG. 10, by providing the electrical component cover 10 with a protruding portion 13 having a vent, the protruding portion 13 has air permeability, The thermistor (not shown) can accurately detect the temperature of the intake air, and the thermistor (not shown) attached to the attachment portion 12 can be accurately protected. Yes.
[0022]
Further, since the protective cover 14 that protects the fingers from touching the blower 5 is continuously formed on the electrical cover 10, fingers are prevented from being accidentally inserted from the suction port 2 toward the blower 5. It is the structure which enabled it to protect effectively.
[0023]
Further, the protective net 14 is composed of a plurality of annular bars 14a formed concentrically and a plurality of radial connecting bars 14b connecting the annular bars 14a,
As a result, the protective net 14 is appropriately strengthened, and as described above, the protective net 14 can be effectively protected from being accidentally inserted from the suction port 2.
[0024]
With the above configuration, as shown in FIGS. 1 to 10, the bell mouth is composed of the first bell mouth 7 and the second bell mouth 8 which are divided into upper and lower parts. An opening is provided to face the lower part of the side wall 9a of the electrical component box 9 and the electrical component cover 10, and the lower part of the side wall 9a is continuous with the electrical component cover 10 and the electrical component cover 10 Is closed with the auxiliary side wall 9c extending by the extending portion 9b,
The lower end of the blower 5 can be swiveled between the side wall 9a and the first bell mouth 7 at the upper portion of the extending portion 9b, and the first bell mouth 7 and the The side wall 9a of the electrical component box 9 is not disposed outside the second bell mouth 8, so that a sufficient space A for wiring and the like as shown in FIG. 5 can be secured in the electrical component box 9. Thus, the ceiling-embedded air conditioner is provided.
[0025]
【The invention's effect】
As described above, according to the present invention, the ceiling-embedded air conditioner is configured such that a sufficient space for wiring such as wiring in the electrical component box can be secured.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a ceiling-embedded air conditioner according to the present invention.
FIG. 2 is a cross-sectional view of a main part of a ceiling-embedded air conditioner according to the present invention.
FIG. 3 is an enlarged cross-sectional view of a main part of a ceiling-embedded air conditioner according to the present invention.
FIG. 4 is an exploded view of a main part of a ceiling-embedded air conditioner according to the present invention.
FIG. 5 is an enlarged cross-sectional view of a main part of a ceiling-embedded air conditioner according to the present invention.
FIG. 6 is an enlarged cross-sectional view of a main part of a ceiling-embedded air conditioner according to the present invention.
FIG. 7 is an enlarged cross-sectional view of a main part of a ceiling-embedded air conditioner according to the present invention.
FIG. 8 is a bottom view of a ceiling-embedded air conditioner according to the present invention.
9 is a cross-sectional view taken along line AA shown in FIG.
FIG. 10 is a bottom view showing an electrical cover, a thermistor mounting portion, and a protection net of a ceiling-embedded air conditioner according to the present invention.
FIG. 11 is a cross-sectional view of a ceiling-embedded air conditioner according to a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Case main body 2 Suction inlet 3 Outlet 4 Cosmetic panel 5 Blower 6 Heat exchanger 7 1st bellmouth 8 2nd bellmouth 9 Electrical component box
9a Side wall
9b Extension part
9c Auxiliary side wall
10 Electrical cover
11 Board
12 Mounting part
12a Groove
13 Protrusion
14 Protective net
14a Circular pier
14b Connecting bar a Step b Hook receiving part c Hook d Ventilation hole

Claims (9)

Provided in the bottom opening of the case body embedded in the ceiling is a suction grille that forms a suction port in the center, a decorative panel with a blower outlet is provided around it, and an air passage connecting the suction port and the blower outlet. In the ceiling-embedded air conditioner, in which a blower and a heat exchanger are provided, a bell mouth is provided inside the suction port, and an electrical component box covered by an electrical cover is provided outside the bell mouth.
The bell mouth is composed of a first bell mouth and a second bell mouth that are divided into upper and lower parts, and the second bell mouth has an opening facing the lower part of the side wall of the electrical component box and the electrical cover. The ceiling-embedded air conditioner is characterized in that the opening is closed by the electrical cover and an auxiliary side wall extending from the lower part of the side wall so as to be continuous with the electrical cover. 2. The ceiling-embedded type according to claim 1, wherein a stepped portion is provided opposite to the auxiliary side wall and the electrical component cover, and the auxiliary side wall and the electrical component cover are joined to each other without a gap by the stepped portion. Air conditioner. The auxiliary side wall is provided with a hook receiving portion, while the electrical cover is provided with a hook that engages with the hook receiving portion, and the hook is engaged with the hook receiving portion to join the auxiliary side wall and the electrical cover without gaps. The ceiling-embedded air conditioner according to claim 1, wherein the air conditioner is embedded in a ceiling. 4. The ceiling-embedded air conditioner according to claim 1, wherein a ventilation hole is provided in the blower side of the electrical component box and the electrical cover. The auxiliary side wall is provided with a mounting portion for mounting a thermistor that protrudes inwardly from the minimum inner diameter portion of the first bell mouth or the second bell mouth and detects the temperature of the suction air from the suction port. The ceiling-embedded air conditioner according to claim 1. 6. The ceiling-embedded air conditioner according to claim 1, wherein a groove portion corresponding to a tip portion of the first bell mouth is provided on the blower side of the attachment portion. Corresponding to the protruding shape of the mounting portion, the electrical component cover is provided with a protruding portion having a vent hole. Item 7. A ceiling-embedded air conditioner according to item 6. 8. The protective cover according to claim 1, 2, 3, 4, or 7, wherein a protective mesh for protecting the blower from being touched by fingers is continuously formed on the electrical cover. Embedded ceiling air conditioner. 9. The ceiling-embedded air conditioner according to claim 8, wherein the protective mesh includes a plurality of annular bars formed concentrically and a plurality of radial connection bars connecting the annular bars. .

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