JP2009103349A - Ceiling-embedded air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ceiling-embedded air conditioner capable ofeasily determining the center of an indoor unit body from the external appearance of a product, so that the installation workability of the ceiling-embedded air conditioner can be improved, even in the ceiling-embedded air conditioner in which the center of the indoor unit is not aligned with the center of a blower. <P>SOLUTION: In this ceiling-embedded air conditioner, the center of the blower is not aligned with the center of the indoor unit body, a fan guard for protecting the blower is disposed at a lower part of the blower, a body center indication point indicating the center of the indoor unit body is marked while being eccentric from the center of the fan guard, and the body center indication point is aligned with the center of the indoor unit body. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a ceiling-embedded air conditioner, and more particularly to a ceiling-embedded air conditioner with an improved fan guard structure.

  Generally, a ceiling-embedded air conditioner is provided with a suction port at the center, and a plurality of air outlets are provided so as to surround the suction port.

  Further, a fan guard for preventing contact with the blower is provided between the suction port and the blower, and a concentric circular beam centering on the center of the fan guard is connected to a connecting beam arranged radially from the center of the fan guard. It is formed by attaching.

  However, as shown in FIG. 7, the conventional fan guard 21 has the same mounting interval between the annular bars 21a. Therefore, the bar grid made up of the annular bars 21a and the connecting bars 21b near the outer periphery away from the blower 22 has a function of preventing contact. Moreover, it contributed to the reduction of the air volume due to the air resistance by the annular crosspiece 21a.

The center _{C 21} of the conventional fan guard 21 is disposed at the center and concentric center _{C 22} and bell mouth of the blower 22, when the center _{C 22} of the center _{C 23} of the indoor unit main body 23 and the blower 22 are different At the time of installation work such as ceiling openings, suspension bolts and ceiling-embedded air conditioners, it is necessary to measure and confirm the center C ₂₃ of the indoor unit main body 23 using a measuring instrument, resulting in inferior installation workability. there were.

In Patent Document 1, in order to reduce the resistance generated in the suction air flow by the fan guard, the fan guard is connected to a plurality of annular rails arranged concentrically and a plurality of annular rails connecting the plurality of annular rails. A ceiling-embedded air conditioner has been proposed in which a plurality of annular crosspieces are configured so that the pitch between the portions facing the bell mouth is sparser than the pitch of other locations. Yes.
JP 2000-227233 A

  The present invention has been made in consideration of the above-described circumstances, and the center of the indoor unit main body can be easily determined from the appearance of the product even if the center of the indoor unit is different from the center of the blower. An object of the present invention is to provide a ceiling-embedded air conditioner that improves the installation workability of the ceiling-embedded air conditioner.

  In order to achieve the above-described object, a ceiling-embedded air conditioner according to the present invention includes an indoor unit body that is embedded in a ceiling and includes a heat exchanger and a blower, and an air suction port that covers a lower surface of the indoor unit body In the ceiling-embedded air conditioner composed of a decorative panel having an air outlet, the center of the blower is arranged to be different from the center of the indoor unit body, and a fan guard is provided below the blower. The fan guard is provided with a body center display point indicating the center of the indoor unit body, and the body center display point coincides with the center of the indoor unit body.

  According to the ceiling-embedded air conditioner according to the present invention, even if the center of the indoor unit and the center of the blower are different from each other, the center of the indoor unit body can be easily determined from the product appearance. Thus, the ceiling-embedded air conditioner that improves the installation workability of the ceiling-embedded air conditioner can be provided.

  A ceiling-embedded air conditioner according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of a ceiling-embedded air conditioner according to an embodiment of the present invention, and FIG.

  As shown in FIG. 1, a ceiling-embedded air conditioner 1 according to an embodiment of the present invention covers an indoor unit body 2 embedded in a ceiling, a lower surface of the indoor unit body 2, an air inlet 3 a and It is comprised with the decorative panel 3 provided with the air blower outlet 3b.

  The indoor unit main body 2 has a casing shape and houses a heat exchanger (not shown), for example, a turbo-type blower 4.

  The indoor unit body 2 is attached to a ceiling base material (not shown) by four sets of suspension means 5.

As shown in FIGS. 2 and 3, the indoor unit body 2 is arranged a blower 4, the center C ₂ of the center of the indoor unit body 2 C ₁ and blower 4 are different ie polarized center C ₂ from the center C ₁ Arranged with heart. Further, a bell mouth 6 is provided concentrically with the blower 4 on the suction side of the blower 4.

  Furthermore, a fan guard 7 is provided below the blower 4.

As shown in FIG. 4, the fan guard 7 is made of synthetic resin and is integrally formed. The fan guard 7 has a circular shape and a lattice shape, and a plurality of circular bars 7a having different diameters and the circular bars 7a are non-concentrically unequal. consists coupling bar 7b for connecting at intervals, coupling bar 7b extends radially from the body center indication point P to the eccentricity from the center of the fan guard 7 (coincident with the center C ₂ in FIG. 4). In the present embodiment, the connecting bars extend in a non-linear manner in a staircase shape, but also extend radially when extending in a radial direction from the main body center display point, including extending in a straight line.

Also, larger than the opening area S ₁ of桟格Ko site near inner part of the outer peripheral i.e. bellmouth 6 of the fan guard 7 to another opening area S _2. Thereby, reduction of the suction | inhalation air resistance to an air blower can be aimed at, maintaining the protection strength of an air blower.

  As shown in FIG. 5, the fan guard 7 is provided with an intake air temperature sensor protection unit 9 that protects the intake air temperature sensor 8. Thereby, compared with the case where it provides separately, a number of parts can be reduced.

  Further, an intake air temperature sensor attachment portion 10 for attaching the intake air temperature sensor 8 to the fan guard 7 is provided. Thereby, the number of parts can be reduced, and erroneous temperature detection due to variations in the mounting position of the intake air temperature sensor 8 can be prevented.

  As shown in FIGS. 2 and 6, an air blowing portion 11 arranged in a square shape is provided in the indoor unit body 2 so as to surround the fan guard 7. The air blowing part 11 is provided with a plurality of linear protection bars 12a provided in parallel and spaced apart, and a blowing part protection grid 12 comprising a plurality of support members 12b that support the protection bars 12a.

  Further, a blown air temperature sensor attachment portion 14 for attaching the blown air temperature sensor 13 is provided inside the blowout portion protection grid 12. Thereby, compared with the case where it provides separately, a number of parts can be reduced.

As described above, the ceiling type air conditioner 1, as shown in FIGS. 2 and 3, the center C ₂ of the center C ₁ and the blower 4 of the indoor unit body 2 is arranged differently, the center C ₁ and the main body center display point P provided on the fan guard 7 are arranged so that they coincide with each other. It can be confirmed by observing the center display point P, and there is no need to measure and confirm using a measuring instrument, thereby improving the installation workability.

  According to the ceiling-embedded air conditioner of the present embodiment, the center of the indoor unit body can be easily determined from the product appearance even if the center of the indoor unit and the center of the blower are different from the ceiling-embedded air conditioner. Thus, the ceiling-embedded air conditioner that improves the installation workability of the ceiling-embedded air conditioner is realized.

1 is a perspective view of a ceiling-embedded air conditioner according to an embodiment of the present invention. The top view which removes and shows the decorative panel of the ceiling-embedded air conditioner of one Embodiment of this invention. The conceptual diagram which shows the attachment state of the fan guard used for the ceiling-embedded air conditioner of one Embodiment of this invention. The top view of the fan guard used for the ceiling-embedded air conditioner of one Embodiment of this invention. The perspective view which shows the attachment position of the suction air temperature sensor used for the ceiling-embedded air conditioner of one Embodiment of this invention. The perspective view which shows the attachment position of the blowing air temperature sensor used for the ceiling-embedded air conditioner of one Embodiment of this invention. The top view which removes and shows the decorative panel of the ceiling-embedded air conditioner of one Embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Embedded ceiling type air conditioner, 2 ... Indoor unit main body, 3 ... Makeup panel, 3a ... Air inlet, 3b ... Air blower, 4 ... Blower, 5 ... Hanging means, 6 ... Bellmouth, 7 ... Fan guard, 7a ... circular bar, 7b ... connecting bar, 8 ... suction air temperature sensor, 9 ... suction air temperature sensor protection part, 10 ... suction air temperature sensor mounting part, 11 ... air blowout part, 12 ... blowout part protection Lattice, 12a ... protection bar, 12b ... support member, 13 ... blowing air temperature sensor, 14 ... blowing air temperature sensor mounting part.

Claims (2)

In a ceiling-embedded air conditioner composed of an indoor unit body embedded in a ceiling and equipped with a heat exchanger and a blower, and a decorative panel that covers the lower surface of the indoor unit body and includes an air inlet and an air outlet,
The center of the blower is arranged to be different from the center of the indoor unit body, and a fan guard is provided below the blower,
A main body center display point indicating the center of the indoor unit main body is provided on the fan guard, and the main body center display point coincides with the center of the indoor unit main body. The ceiling fan according to claim 1, wherein the fan guard includes an annular bar having a different diameter and a connecting bar that connects the annular bars at a distance from each other and extends radially from the center center display point. Built-in air conditioner.

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