JPH0322672Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an air conditioner equipped with a centrifugal blower such as a Sirotskov fan as an indoor fan.

[Conventional technology]

Conventionally, this type of air conditioner has been constructed as shown in FIG. 4 is an indoor heat exchanger disposed on the indoor side 1a of the casing 1; 5 is the casing 1 that covers the front opening; Decorative boards 6 and 7 are provided at the top and bottom of the decorative board 5, respectively, and are an air outlet and a suction port. Of the air outlet 6 and the air inlet 7, the air outlet 6 is rotatably provided with a wind direction guide 8 that controls the wind direction in the left and right direction.
Reference numeral 9 denotes a blower electric motor disposed on the outdoor side 1b and located above the base 2; 10 denotes a propeller fan connected to the motor shaft 9a of the electric motor 9;
Reference numeral 11 denotes an outdoor heat exchanger disposed on the outdoor side of the propeller fan 10, that is, the side opposite to the partition plate; and 12, the outdoor heat exchanger is connected to the opposite side of the motor shaft 9a to the opposite side of the propeller fan; 13 is a casing having an air outlet 14 disposed around the air outlet 12 and opening in a direction perpendicular to the opening direction of the air outlet 6. be. Further, 15 is a ventilation passage connecting both the air outlets 6 and 14, and 16 is a fan cover disposed around the propeller fan 10.

In an air conditioner configured in this way,
Indoor air is sucked in from the suction port 7 by the rotation of the Shirotsuko fan 12, passes through the indoor heat exchanger 4, and is sucked by the Shirotsuko fan 12.
The air is blown onto the ceiling plate 1c, guided through the ventilation path 15 to the air outlet 6, and blown into the room as shown by the arrow in the figure.

On the other hand, as the propeller fan 10 rotates, outdoor air is sucked in from the side of the casing 1, passes through the outdoor heat exchanger 11, and then is blown outside as shown by the arrow in the figure.

[Problem that the invention attempts to solve]

However, in the conventional air conditioner, the indoor air outlet 6 and the air outlet 14 of the casing 13 are
Since the openings are perpendicular to each other,
There was a problem in that the amount of air blown into the room from the air outlet 6 of the housing 1 was reduced.

That is, the high-velocity wind blown out from the outlet 14 of the casing 13 passes through the ceiling plate 1c side in the ventilation passage 15, and the wind velocity distribution in the wind direction guide 8 is biased, resulting in a large pressure loss. be. Also, in order for high-velocity wind to pass through the ceiling plate 1c side in the ventilation passage 15, a space 17 is provided above and below the wind direction guide 8 to allow it to rotate, as shown in FIG. Therefore, the upper interval 1
There was also a problem in that air was blown into the room by the rotation of the Shirotsuko fan 12 from 7, and the effect of changing the wind direction in the left and right direction by the wind direction guide 8 was reduced.
In this case, since the air outlet 14 of the casing 13 opens at a position biased to the left when viewed from the indoor side,
The wind speed differs between the left and right sides of the indoor air outlet 6, making the effect of the wind direction guide 8 even smaller.

The present invention was developed in view of these circumstances, and is an air conditioner that can not only increase the amount of air blown into the room, but also effectively change the wind direction using the wind direction guide at the indoor air outlet. It provides:

[Means for solving problems]

The air conditioner according to the present invention is provided with an air blowing guide on the ceiling plate of the casing, which has a sloped surface so that the indoor side is higher in the front-rear direction or the blower side of the indoor fan is higher in the left-right direction. .

[Effect]

In this invention, the air blown out from the outlet of the casing by the rotation of the indoor fan is once constricted by the blower guide, and then the flow is expanded, and the wind speed distribution is adjusted around the outlet of the indoor side of the casing. It becomes uniform.

〔Example〕

Fig. 1 is a longitudinal sectional view showing the air conditioner according to the present invention, and Fig. 2 is a front view showing the air conditioner with the decorative panel removed. The same symbols are given to the parts,
Detailed explanation will be omitted. In the figure, reference numeral 21
2 is a ventilation guide, which is located near the indoor air outlet 6 in the ventilation passage 15 and is provided on the ceiling plate 1c. The inclined surface 21a is formed such that the blowing side of the fan 12, that is, the blowing outlet 14 side of the casing 13 is higher in the left-right direction. As a result, the rotation of the fan 12 causes the air outlet 14 of the casing 13 to
The indoor air blown out from the indoor air outlet 6 is blown into the room from the indoor air outlet 6 while maintaining a uniform wind speed distribution.

In an air conditioner configured in this way,
Indoor air is sucked in from the suction port 7 by the rotation of the Shirotsuko fan 12, passes through the indoor heat exchanger 4, and is sucked by the Shirotsuko fan 12.
The air is blown upward from the air outlet 14 of the casing 13, guided to the air outlet 6 as shown by the arrow in FIG. 1, and blown into the room. At this time, high-velocity wind is biased towards the ceiling plate 1c side and passes through the ventilation passage 15, but the flow is expanded after once contracted by the ventilation guide 21, so the wind velocity distribution is changed to the indoor air outlet 6.
It becomes uniform in the vicinity.

In addition, on the indoor side, outdoor air is sucked in from the side of the housing 1 by the rotation of the propeller fan 10, passes through the outdoor heat exchanger 11, and is then guided as shown by the arrow in the figure and blown out outdoors, as in the conventional case. be done.

In addition, although the air blowing guide 21 in this embodiment has the inclined surface 21a formed so that the indoor side is higher in the front-rear direction and the blowing side of the fan 12 is higher in the left-right direction, the present invention is not limited to this. Instead, if either side, that is, the indoor side of the blower guide 21 or the blowing side of the fan 12, is formed with an inclined surface so that it is higher in the front-rear direction and the left-right direction, the intended purpose can be achieved. I can do it.

[Effect of idea]

As explained above, according to the present invention, the air guide is provided on the ceiling plate of the housing with an inclined surface so that the indoor side is higher in the front-rear direction and the outlet side of the indoor fan is higher in the left-right direction. The air blown out from the outlet side by the rotation of the indoor fan is once constricted by the blower guide, and then the flow is expanded, making the wind speed distribution uniform near the indoor outlet of the housing. Become. Therefore, since the pressure loss near the indoor air outlet is reduced, the amount of air blown into the room can be increased. Further, since the imbalance in the wind speed distribution between the upper and lower wind direction guides is corrected, it is possible to effectively convert the wind direction in the left and right direction using the wind direction guide.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view showing an air conditioner according to the present invention, Fig. 2 is a front view showing the air conditioner with the decorative panel removed, and Fig. 3 is a longitudinal sectional view showing a conventional air conditioner. , FIG. 4 is a vertical sectional view showing the main part thereof. 1... Housing, 1c... Ceiling plate, 6... Air outlet,
7... Suction port, 12... Sirotskov fan, 21...
...Blower guide, 21a...Slanted surface.

Claims (1)

[Scope of utility model registration request] A housing for an air conditioner having a suction port and a blowout port that open to the front, and a housing that is arranged within the housing and uses centrifugal force due to rotation to blow suction air against a ceiling plate and guide it to the blowout port. In an air conditioner equipped with a fan on the indoor side, an air blowing guide is provided on the ceiling plate, the air guide having a sloped surface so that the indoor side is higher in the front-rear direction or the blowing side of the fan is higher in the left-right direction. Characteristic air conditioner.