JPH0710172Y2 - Air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to an air conditioner such as a ceiling-embedded type.

(Prior Art) An example of a conventional ceiling-embedded air conditioner is shown in FIG.

In FIG. 3, a heat exchanger 2 and a blower 3 for passing air through the heat exchanger 2 are arranged inside a casing 1.

The casing 1 is embedded in the ceiling 4 and is suspended on a ceiling slab or the like by a hanging bolt (not shown).

The inside of the casing 1 is divided into a heat exchanger chamber 6 and a blower chamber 7 by a partition plate 5, and the heat exchanger chamber 6 is divided into a upstream chamber 6a and a downstream chamber by the heat exchanger 2 disposed inside the casing 1.
It is divided into 6b.

The blower 3 is fixed to the partition plate 5 in the blower chamber 7 so that its outlet 3a opens to the upstream chamber 6a.

Reference numeral 8 denotes an electrical component box in which electrical components are stored, which is disposed below the blower 3 in the blower chamber 7. Reference numeral 9 denotes a ceiling exposed panel which is fixed to the ceiling 4 and covers the lower opening of the casing 1, and which has an indoor air intake 10 and a conditioned air outlet 11. Reference numeral 12 is a chamber block installed on the exposed ceiling panel 9, 13 is a drain pan installed under the heat exchanger 2, and 14 is an air filter installed downstream of the indoor air inlet 10.

When the blower 3 is driven, indoor air is
Blower room 7 through indoor air inlet 10 and air filter 14
It enters inside and is sucked into the blower 3. In this process, a part of the room air flows around the electric component box 8 to cool it.

The air urged by the blower 3 flows from the outlet 3a to the heat exchanger chamber 6
It flows into the heat exchanger 2 via the upstream side chamber 6a, and is cooled or heated by exchanging heat with the refrigerant there to become conditioned air. This conditioned air is blown out into the room from the air outlet 11 through the outlet passage 15 formed in the downstream chamber 6b and the chamber block 13.

(Problems to be Solved by the Invention) In the above conventional air conditioner, the electrical component box 8 is disposed in the casing 1 in the air flow path from the indoor air suction port 10 to the air suction port 3b of the blower 3. Therefore, the height H of the casing 1 increases and the electric component box 8 becomes a ventilation resistance, which not only increases the driving power of the blower 3 but also causes noise.

(Means for Solving the Problems) The present invention has been proposed to solve the above problems, and its gist is to make a heat exchanger and air flow through the heat exchanger inside the casing. In an air conditioner provided with the blower of, an electrical component box containing electrical components is fixed to the outer surface of the casing outside the casing,
An air conditioner is characterized in that both ends of the electric component box are communicated with the upstream and downstream air flow paths of the heat exchanger through through holes formed in the casing.

(Operation) In the present invention, since the indoor air flows through the heat exchanger by driving the blower because of the above configuration, since the heat exchanger becomes a ventilation resistance, the air on the upstream side of the heat exchanger is Part of the room air flows from the flow path through the through hole into the electrical equipment box from one end, and after cooling the electrical equipment in the process of passing through this, it passes through the through hole from the other end. It flows out into the air passage on the downstream side of the heat exchanger.

(Embodiment) One embodiment of the present invention is shown in FIGS. 1 and 2.

An electric component box 20 is fixed to the outer surface of the casing 1 outside the casing 1, and a front end portion of the electric component box 20 has an upstream air flow path of the heat exchanger 2 through a through hole 21 formed in the casing 1.
That is, it communicates with the upstream side chamber 6a, and the rear end of the electrical component box 20 communicates with the downstream side air flow path of the heat exchanger 2, that is, the downstream side chamber 6b through the through hole 22 formed in the casing 1. ing.

Other configurations are similar to those of the conventional one shown in FIG. 3, and corresponding members are designated by the same reference numerals.

Then, by driving the blower 3, the indoor air blown out from the blower outlet 3a of the blower 3 enters the heat exchanger 6 and flows through the heat exchanger 2 through the upstream side chamber 6a. Since 2 becomes ventilation resistance, part of the indoor air bypasses the heat exchanger 2 and passes through the through hole 21 from the upstream side chamber 6a.
Through the electric component box 20 from one end thereof, and after cooling the electric component accommodated therein in the process of flowing through it, the downstream chamber 6b from the other end through the through hole 22. Spill to.

(Effect of the Invention) In the present invention, since the electric component box is disposed outside the casing, the height of the casing can be reduced to reduce the size thereof and the electric component box does not have ventilation resistance. Therefore, the power and noise of the blower can be reduced.

Further, since both ends of the electrical component box are communicated with the upstream and downstream air passages of the heat exchanger through the through holes formed in the casing, respectively, the ventilation resistance of the heat exchanger is used to generate this heat. Since it is possible to forcibly flow through the inside of the electrical component box by bypassing part of the air that is about to flow into the exchanger, the electrical components stored inside the electrical component box can be effectively cooled.

[Brief description of drawings]

1 and 2 show one embodiment of the present invention, FIG. 1 is a longitudinal sectional view, and FIG. 2 is a partial sectional view taken along the line II-II of FIG. FIG. 3 is a vertical sectional view showing an example of a conventional air conditioner. Casing …… 1, heat exchanger …… 2, blower …… 3, electrical equipment box …… 20, through hole …… 21,22, upstream air flow path ……
6a, downstream air flow path …… 6b

Claims (1)

[Scope of utility model registration request] 1. An air conditioner comprising a heat exchanger and a blower for allowing air to flow through the heat exchanger inside a casing, wherein an electric component box containing electric components is provided outside the casing. An air conditioner which is fixed to an outer surface and has both ends of the electrical component box communicated with the upstream and downstream air passages of the heat exchanger through through holes formed in the casing, respectively. Machine.