JPS6342271Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Technical field of the invention] This invention relates to an outdoor unit of an air conditioner.
In particular, it relates to an outdoor unit of an air conditioner with an improved ventilation structure. [Technical background and problems of the invention] In general, an outdoor unit of an air conditioner has an outdoor heat exchanger installed on the side of the main body, and a fan installed on the top surface. As the fan rotates, air is sucked in from around the outside of the heat exchanger for heat exchange, and the air after heat exchange is blown out from the outlet. However, in an outdoor unit having such a configuration, air sucked into the interior through the heat exchanger flows into the fan and is blown out from the outlet while causing a swirling flow inside the unit. The swirling airflow and the airflow sucked in from the suction surface upstream in the swirling direction cause airflow collision around the fan, resulting in a suction loss to the fan. In addition, this resulted in drawbacks such as generation of large noise. [Purpose of the invention] This invention was made with attention to the above circumstances.
The purpose is to provide an outdoor unit of an air conditioner that can improve cooling and heating capacity and reduce noise by preventing collisions of airflows drawn in by fans and improving air blowing efficiency. [Summary of the invention] This invention improves air blowing efficiency and heating and cooling capacity by installing a rectifier plate close to the fan on the suction side of an outdoor unit that has an outdoor heat exchanger on the side and a fan on the top. It is designed to improve the noise level and reduce noise. [Embodiment of the invention] This invention will be described below based on an embodiment shown in the drawings. In the drawings, reference numeral 1 denotes an outdoor unit main body of an air conditioner, and this main body 1 is provided with a bottom plate 2 and a top plate 4 on which an air outlet 3 is formed.
A substantially U-shaped outdoor heat exchanger 5 is provided between the bottom plate 2 and the top plate 4 so as to be located on three side surfaces around the bottom plate 2, and a side plate 6 is provided so as to close off the remaining one side. Furthermore, a fan motor 8 attached to a bracket 7 fixed to the top plate 4 and a propeller fan 9 which is an axial flow fan are provided inside. 10 more
is a rectifier plate provided inside the main body 1 for rectifying the airflow, and the upper end of the rectifier plate 10 is fixedly attached to the top plate 4. It should be noted that this attachment may, of course, be done not on the top plate 4 but on the bracket 7, side plate 6, or the like. In addition, the current plate 10 is located at the boundary between the rotation axis of the fan 9 and the heat exchanger 5 and the side plate 6.
In other words, it is provided along the line connecting the point A where the air suction part and the non-suction part intersect and the fan 9 axis, and the end located inside is in contact with the motor 8 or located near it, The outer end thereof is in contact with or near point A, and the upper end thereof is formed so as to be located close to the fan 9 and the top plate 4 to the extent that rotation of the fan 9 is not hindered. There is. Then, the outdoor unit 1 configured as described above
is operated together with an indoor unit (not shown).
That is, as the fan 9 rotates counterclockwise as shown by the arrow in FIG. . Then, the flow turns into a swirling flow inside and flows into the fan 9, but the rectifying plate 10 straightens the airflow swirling just before the suction section of the fan 9 and the airflow sucked in from the suction surface located upstream in the swirling direction. , airflow collisions around the fan 9 are reduced, and the airflow can be guided from both sides of the baffle plate 10 to the inlet of the fan 9 without creating a vortex, thereby improving air blowing efficiency. In addition, if the applicant does not provide the rectifying plate 10 (),
When the current plate 10 was provided (2), the rotational speed of the fan 9 was held constant, and an experiment was conducted to see what the characteristics would be like. The experimental results are shown in the table below.

[Effect of idea]

As explained above, according to this invention, in an outdoor unit in which an outdoor heat exchanger is arranged on the side surface and a fan is arranged on the top surface, a simple configuration in which a rectifying plate is provided close to the fan on the suction side of the fan,
It is possible to provide an outdoor unit for an air conditioner that has practical effects of improving air blowing efficiency, improving heating and cooling capacity, and reducing noise.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a schematic configuration of an outdoor unit of an air conditioner showing one embodiment of this invention;
The figure is a cutaway front sectional view of the same side plate. 5... Outdoor heat exchanger, 9... Fan, 10...
rectifier.

Claims (1)

[Scope of utility model registration request] A bottom plate, a top plate with an air outlet formed therein, an outdoor heat exchanger installed on a part of the surrounding side surface between the bottom plate and the top plate, a side plate that closes the side surface where the outdoor heat exchanger is not installed, and a top plate. In an outdoor unit of an air conditioner that is equipped with a fan motor and an axial fan that are attached to the inside of the air outlet by a bracket, the inside The end is on or near the motor, the outer end is on or near the side plate, the bottom end is at a height near the bottom of the fan motor, and the top end is near the fan and top plate. An outdoor unit of an air conditioner, characterized in that it is equipped with a rectifier plate formed as described above.