JPS6146333Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an air conditioner that performs cooling or heating by convecting condensation heat or evaporation heat exchanged in a heat exchanger with air discharged by a blower. It is.

Conventionally, in air conditioners configured to exchange heat directly with the heat exchanger using the discharge air from the blower, the air velocity at the outlet of the blower is uneven, so there is a large gap between the blower and the heat exchanger. A large capacity air chamber was installed, and the chamber effect kept the air pressure of the blower constant and equalized the speed of the air flowing through the heat exchanger.

However, due to installation space and cost issues, there is a demand for downsizing, and in order to cope with this, reducing the chamber capacity will quickly
The non-uniform wind speed caused poor heat exchange performance, and in the evaporator, the phenomenon of dew flying occurred in areas where the wind speed was high, leading to deterioration of performance.

The present invention was developed in an attempt to solve the above-mentioned drawbacks, and to obtain a uniform air velocity flow even when the main body is downsized, and to achieve the purpose at an extremely low cost.

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a main body of an air conditioner, in which a suction port 2 is formed at the rear and a blowout port 5 is formed in the front part, and a blower device 3 and a heat exchanger 4 are sequentially arranged between both ports 2 and 5. The inlet 2 is equipped with a filter 6 for removing dust from the air, and the outlet 5 is equipped with a filter 6 for removing dust from the air.
A louver 7 that changes the air flow in the vertical direction and a louver 8 that changes the air flow in the horizontal direction are provided.

The air blower 3 is fixed by a fixing piece 11 to a partition plate 10 that partitions the interior of the cabinet 9 into the front and back. Separated. The blower device 3 is composed of a fan casing 14 and an impeller 15. The impeller 15 is equipped with a motor 16 for rotationally driving the impeller 15, and drives the impeller 15 via a motor shaft 17. .
Further, on the outer surface of the fan casing 14, an appropriate number of bypass holes 18 are cut out toward the inner surface of the air blower 3 in a portion located between the partition plate 10 and the air blower discharge part 13. has been done. The flange 19 formed by the above-mentioned notch forming the bypass hole 18 functions as a guide plate for guiding the air flowing inside the casing portion 14 to the bypass hole 18.

Next, the effects of these configurations will be described.

The blower device 3 is connected to the impeller 1 by the motor 16.
5 is rotated, and air is introduced from the air blower suction port 12 through the filter 6. Since the introduced air flow flows along the inner surface of the fan casing 14, the air flow caused by the blower device 3 is dispersed by the flange 19 toward the outer surface of the fan casing 14 along the bypass hole 18. and that which is directly discharged from the discharge port 13 of the blower. However, since the air flow toward the heat exchanger 4 is discharged radially from the blower 3, there is no possibility that there will be a portion where the flow becomes faster locally.

As is clear from the above explanation, according to the present invention, the air sent to the heat exchanger surface by the blower becomes a dispersed flow through the discharge port and the bypass hole, so that the air blows onto the heat exchanger surface. A uniform wind speed flow can be obtained, there is no risk of deterioration of the heat exchange amount of the heat exchanger, and furthermore, when used as an evaporator, the phenomenon of flying dew does not occur. Moreover, as seen in the structure of the bypass hole, the purpose can be achieved very easily and at low cost, and is extremely effective.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an air conditioner showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line 1--' in FIG. 1, and FIG. 3 is a detailed sectional view of an air blower. 3...Blower, 4...Heat exchanger, 13...Blower discharge port (discharge port), 14...Fan casing (casing), 18...Bypass hole.

Claims (1)

[Scope of utility model registration request] In a device in which a blower device and a heat exchanger are sequentially arranged between an inlet and an outlet, a portion of the air passing through the casing is placed around a discharge port facing the heat exchanger in the casing of the blower device. An air conditioner that has an appropriate number of bypass holes that allow the heat to go outside and pass through the heat exchanger.