JPH0712816Y2 - Air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an air conditioner equipped with a cross flow fan.

<Prior Art> Generally, in an air conditioner in which a heat exchanger is arranged on the primary side (windward side) of a cross flow fan, a method of providing a straightening plate in the casing in order to make the suction wind velocity distribution of the heat exchanger uniform Is a fact that is already well known (for example, Jikho Sho 57
-See 6902 publication).

<Problems to be Solved by the Invention> However, there is a limit to the product height as shown in FIG. 2, and the conventional air in which the indoor side portion a and the outdoor side portion b, which are structurally lower suctions, are integrated. In the air conditioner c, the indoor suction port f
The flow of the air does not flow uniformly through the heat exchanger d, and vortices are generated in the casing e. In particular, as shown in the figure, in the type in which the front surface of the suction port f is shielded and the suction is performed from below, vortices are likely to occur at the inlet side of the casing e. Therefore, in the part of the heat exchanger d close to the drain pan g, the flow of wind becomes extremely poor, and the heat exchange rate decreases. Further, the mounting position of the heater h has to be kept away from the cross flow fan i in consideration of radiant heat.

In view of the above situation, the present invention has an object to provide an air conditioner that solves the above-mentioned problems by disposing a heater on the side of the current plate opposite to the fan.

<Means for Solving the Problems> According to the present invention, a fan and a rectifying plate located on the windward side of the fan are arranged in a ventilation path of an air conditioner, and the rectifying plate has a surface opposite to the fan. The heater is attached to.

<Operation> As described above, by providing the straightening plate with the heater in the ventilation passage, the suction passage wind velocity of the heat exchanger can be made substantially uniform, thereby improving the efficiency of the heat exchanger. In addition, since the heater is disposed on the side opposite to the fan of the straightening vane, when the fan is locked while the heater is energized, the radiant heat of the heater does not directly hit the crossflow fan by the straightening vane.

<Embodiment> The present invention will be described below with reference to the drawings of the embodiment.

FIG. 1 is a vertical sectional side view of a main part of an integrated air conditioner,
Is an air conditioner main body in which the lower suction indoor side portion 2 and the outdoor side portion 3 are integrated, and the cross flow fan 4 is disposed in the casing 2a of the indoor side portion 2 and the front position which is the primary side thereof. Is provided with an indoor heat exchanger 5, a rectifying plate 6 is provided in a casing which is a lower back part of the heat exchanger 5, and one side of the rectifying plate 6 on the casing surface side, that is, a cross flow fan, The heater 7 is mounted on the opposite surface 16 with a mounting bracket 8. Reference numeral 9 is a drain pan formed at the lower end of the casing 2a. Reference numeral 10 is a cross flow fan disposed inside the casing 3a of the outdoor side portion 3, and 12 is an outdoor heat exchanger.

Next, this operation will be described. First, the cross flow fan 4
By driving the front panel 13 of the air conditioner body 1
The air sucked from the suction port 14 provided below the inside of the casing 2a flows through the indoor heat exchanger 5 and flows to the inside of the straightening vane 6 side. It does not create a whirlpool inside. Therefore, the amount of air passing through the heater 7 is increased as compared with the case where the flow straightening plate 6 is not provided. That is, the efficiency of the heater is improved. Further, since the radiant heat emitted from the heater 7 is shielded by the rectifying plate 6 serving as the back portion, when a resin cross flow fan is used, the risk of thermal deformation of the fan due to the radiant heat can be reduced. The air that has been appropriately heat-exchanged by the heat exchanger 5 and the heater 7 is blown out from the upper outlet 15.

<Effects of the Invention> As described above, the air conditioner of the present invention has the straightening vane installed in the ventilation passage and the heater provided on the surface opposite to the fan in the ventilation duct. The flow of air becomes good, the efficiency of the heat exchanger is improved, and the amount of air passing through the heater is increased as compared with the case where there is no baffle plate, which leads to an increase in heater efficiency. Further, when the fan is locked while the heater is energized, the radiant heat of the heater does not directly hit the cross flow fan by the rectifying plate, so that there is a practical effect that the fan is not adversely affected (thermal deformation).

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of an essential part showing an embodiment of the present invention, and FIG. 2 is a conventional vertical sectional view. 1 ... Air conditioner body, 2 ... Indoor side part, 2a ... Casing, 5 ... Heat exchanger, 6 ... Rectifier plate, 7 ... Heater,
16 …… Face.

Claims (1)

[Scope of utility model registration request] 1. An air conditioner having a fan in a ventilation passage and a current plate located on the windward side of the fan, wherein a heater is attached to a surface of the current plate opposite to the fan. A characteristic air conditioner.