JP4013947B2 - Blower - Google Patents

Description

  The present invention relates to a blower that is installed on an indoor ceiling or the like and blows out air from an air conditioner and room air in parallel.

  A conventional blower will be described with reference to FIGS. FIG. 9 is a sectional view of the blower, and FIG. 10 is a side view of the blower. In the figure, a blower 1 includes fans 3 and 4, casings 5 and 6 that cover the fans 3 and 4, a drive unit 20 that drives the fans 3 and 4 and the casings 5 and 6, 4, the casings 5 and 6, the case 10 in which the drive unit 20 is housed, a vertical duct 15 for flowing cool air or the like from an air conditioner (not shown), and a branch duct 16 for branching the airflow flowing from the vertical duct 15. And individual ducts 17 and 18 for flowing air flow into the fans 3 and 4. The individual ducts 17 and 18 are connected to one end of the branch duct 16, and the other end is fixed to the top surface 10 a of the case 10. Has been.

  The operation of the conventional blower 1 will be described with reference to the drawings. First, the drive unit 20 rotates the fans 3 and 4 to blow out an air current, and simultaneously, the casings 5 and 6 are swung to blow out while changing the direction of the air flow. On the other hand, cold air or the like is sent from the air conditioner from the vertical duct 15, and this air current is branched by the branch duct 16, passes through the individual ducts 17 and 18, passes through the inside of the case 10, and flows into the room as indicated by arrows. Flowing.

  However, the conventional blower 1 generates a large number of water droplets 13 and 13a on the outer surface of the case 10 and the surfaces of the casings 5 and 6 due to a temperature difference between the cold air flowing from the vertical duct 15 and the outside air, as shown in FIG. There is a problem that the water drops 13 and 13a hang down in the room and give a person discomfort. In addition, when the airflow in the vertical duct 15 hits the fans 3 and 4, the rotation of the fan is lowered, which affects the rotation and the airflow from the vertical duct cannot be strengthened.

  In addition, since the individual ducts 17 and 18 and the branch ducts 16 and the vertical ducts are erected almost vertically on the top surface of the blower 1, the height in the vertical direction (referred to as the height of the ceiling) increases, and the ceiling. There was a problem that the height had to be increased.

  Further, since an airflow such as cold air passes through the vertical duct 15, collides with the bottom surface of the branch duct 16, branches and flows to the individual ducts 17 and 18, there is a problem that the airflow loss when passing through the branch duct 16 is large. was there.

  The present invention has been made to solve the above-described problems, and makes it difficult for water droplets to be generated in a case, a casing, etc., can reduce the height of the indoor ceiling, and has a small airflow loss. Is intended to provide.

The blower according to the present invention is formed in the body opened in the room, communicated with the air conditioner through the duct, a nozzle that blows air from the duct toward the room, a fan, and a circumferential direction of the fan , and a blow-out port for blowing air sucked into the suction port and a fan taking air into the fan, and a casing which air blown out from the air outlet swings rotates in the direction of rotation of the fan so as to be parallel with the air from the nozzle It is provided.

Moreover, in which the corners of the casing of the air outlet Roh nozzle is provided with a notch portion which is cut.

Moreover, the partition which divides the airflow from a duct in the connection part of a nozzle and a duct is provided.

The present invention has the following effects.
Nozzles communicating through the air conditioner and ducts provided in the main body, since blow air from the duct toward the air blown out from the blowout opening of the casing, the rotation unevenness for a greater fan airflow from the air conditioner In addition, there is an effect that no condensation is generated on the surface of the fan or the casing .

In addition, by providing a notch in which the corner on the casing side of the nozzle outlet is cut, the airflow from the nozzle is easily drawn into the airflow from the casing, and the airflow from the nozzle can be sent to a wide range. There is an effect that can be done .

Further, by providing a partition that divides the airflow from the duct at the connection portion between the nozzle and the duct, there is an effect that the airflow can easily flow and pressure loss can be reduced .

Embodiment 1 FIG.
An embodiment of the present invention will be described with reference to FIGS. 1 is a side view of the blower, FIG. 2 is a bottom plan view, FIG. 3 is a cross-sectional view in which a duct is connected to the side surface of the nozzle, and FIG. 4 is a cross-sectional view in which the duct is connected to the top surface of the nozzle. 5 and 6 are a perspective view and a sectional view of the nozzle. 7 and 8 are diagrams showing the flow of airflow. In the figure, the same reference numerals as those in the conventional example indicate the same or corresponding parts, and the description thereof is omitted.
In the figure, a blower 30 includes a case 31 as a main body, a blower 32 for sending wind provided in the case, and a casing 5 as wind direction changing means for periodically changing the direction of the wind sent from the blower 32, 6, and a nozzle 34 that blows out air from an air conditioner (not shown) provided inside the side surface 33 of the case 31. The blower 32 and the nozzles 34 including the casings 5 and 6 are provided in parallel so that the airflow from the nozzle 34 does not hit the blower.

The case 31 is a box-shaped housing that is open on the side from which the wind blows, and the side surface 33 is provided with openings 35a and 35b that match the nozzle inlet when the nozzle 34 is attached and fixed. The nozzle 34 is fixed by pressing a part of the nozzle 34 by tightening a clamp (not shown) to the side surface 33 with a screw (not shown).
The blower 32 includes two fans 3 and 4 and a drive unit 20 that rotates the fans 3 and 4.
The casings 5 and 6 as the wind direction changing means are formed so as to surround the fans 3 and 4. A suction side 36 and a blow-out side 37 are configured to swing and rotate at regular time intervals to change the direction of the wind.
The nozzle 34 connects a duct 38 to which cool air or warm air from an air conditioner is sent to branch an air flow, and an inlet 40 to which the air current from the air conditioner enters by connecting the duct 38 and the inlet 40. It has a rectangular shape having a plurality of outlets 41 and 42 that communicate with each other and blow out an air flow.

The nozzle 34 is attached to the case 31 by aligning the center of the partition 50 of the nozzle 34 with the center of the case 31 in the longitudinal direction, and the opening side of the inlet 40 (the connection surface side of the duct) is connected to the side surface 33 of the case 31 and the ceiling. It is attached inside the surface 43. At this time, the outlets 41 and 42 of the nozzle 34 are located on the opening side of the case 31.
As shown in FIGS. 3 and 4, the duct 38 is connected to the nozzle 34 from the direction of the top surface 43 of the case 31 and from the direction of the side surface 33.
As shown in FIG. 3, the connection from the direction of the side surface 33 of the case 31 is suitable when the ceiling space is low and narrow.
Moreover, as shown in FIG. 4, when connecting from the direction of the top surface 43 of the case 31, it is suitable when there is an obstacle next to the wall or when the ceiling space is large.

  The connection between the nozzle 34 and the duct 38 is fixed by bringing the end of the duct 38 into contact with the opening of the inlet 40 of the nozzle 34. Then, in order to close the opening of the inlet 40 other than the connecting portion of the duct, a lid 44 is attached and closed so as not to leak air.

  Next, the nozzle 34 will be described. In FIG. 4, the nozzle 34 is made of a heat insulating material such as foamed polystyrene or synthetic resin in order to suppress the occurrence of condensation on the surface of the nozzle itself and its peripheral part, and is a substantially rectangular body. The inlet 40 is formed so as to be the inlet from both the side surface 34a direction and the top surface 34c direction. The inlet 40 includes two concave portions 48 and 49, and a partition 50 is provided at the boundary between the concave portions 48 and 49.

The partition 50 rectifies the airflow from the air conditioner at the inlet 40 and facilitates the flow of airflow into holes 51 and 53 described later.
The tips 50a and 50b of the partition 50 are pointed to reduce the air resistance. The tip 50a is lower than the side surface 34a of the nozzle, and there is a gap 50c between the tip 50a and the side surface 34a. The balance of the airflow flowing in the recesses 48 and 49 is maintained by the interval 50c. That is, if there is a pressure difference or air volume difference between the recesses 48 and 49, the air flow moves from the higher pressure level to the lower pressure level, or from the higher air volume level to the lower pressure level, and the same air pressure or air volume is reached. , 41 can be balanced so that the amount of air blown out is the same.

The right side surface of the recess 48 facing the partition 50 is provided with a hole 51 for flowing an air current to the right fan 3 side, and communicates with the blowout port 41 through a substantially L-shaped vent hole 52.
In addition, a hole 53 is provided in the left side surface of the recess 49 to allow airflow to flow into the left fan 4, and communicates with the outlet 42 through a substantially L-shaped vent hole 54.

A notch 55 is formed in a state where the corners of the outlets 41 and 42 are cut from the lower surface 34d where the outlets 41 and 42 of the nozzle 34 are provided to the side face 34b opposite to the side face 33 of the case 31. The notch 55 is easily drawn into the airflow blown out from the casings 5 and 6 so that a part of the airflow blown out from the blowout ports 41 and 42 is also blown out to the casings 5 and 6 as the wind direction changing means. Therefore, even if the casings 5 and 6 swing and rotate and the wind direction changes, the airflow from the outlets 41 and 42 flows in the direction of the casings 5 and 6, so the airflow direction of the casings 5 and 6 from the air conditioner It is possible to spread the cool air and the warm air, and to give the user the coolness by cooling and the warmth by heating.
In addition, if the shape of the cutout 55 is such that a part of the airflow blown out from the blowout ports 41 and 42 is blown out toward the casings 5 and 6, the notch angle, shape, size, etc. There is no particular limitation.

  The nozzle 34 is manufactured by molding with polystyrene foam or a synthetic resin material having high heat insulation.

The operation of the blower configured as described above will be described below.
First, the drive unit 20 of the blower 32 rotates the fans 3 and 4 to blow out the airflow A, and at the same time, the airflow B that is cold air or warm air from the air conditioner from the air outlets 41 and 42 of the nozzle 34 through the duct 38. Blow out. The air current A is blown out while swinging and rotating the casings 5 and 6 and changing the blowing direction to a predetermined angle range. On the other hand, the air flow B enters the inlet 40 of the nozzle 34 from the duct 38 and is divided into the concave portions 48 and 49 by the partition 50 and passes through the vent holes 52 and 54 from the holes 51 and 53 provided on the side surfaces of the concave portions 48 and 49. And it blows out from the blower outlets 41 and 42.

  Since the blower 32 and the casings 5 and 6 and the nozzle 34 are provided in parallel, the airflow A and the airflow B are in a parallel state when the airflow A is blown vertically downward, and the casings 5 and 6 are in parallel. Rotates and airflow A blows out to the left (on the opposite side of the nozzle) (shown in FIG. 7), airflow B is pulled by airflow A except for a part and bends toward airflow A, and casings 5 and 6 rotate. When the airflow A blows out to the right side (nozzle side) (shown in FIG. 8), the airflow B is pushed by the airflow A and bends to the right side. In this way, the airflow B is spread over a wide area in the room by the airflow A.

  Further, since the nozzle 34 is provided inside the side surface 33 of the case 31 so that the air current A and the air current B blow out in parallel, the air current B does not hit the fans 3, 4 and the casings 5, 6. 4 does not affect the rotation of rotation 4 or the like, does not cause condensation on the surfaces of the fans 3, 4 and the casings 5, 6, and does not drop condensed water in the room.

In addition, since the duct is connected to the nozzle 34 provided with a plurality of outlets 41 and 42 with the inlet 40 in one place, it is not necessary to connect the branch duct, and the duct connection work is facilitated.
In addition, since there is no branch duct, the space for duct piping can be reduced and work can be performed even in a narrow space.
Moreover, the pressure loss by piping can be reduced by the reduction | decrease of the length of duct piping, and the reduction of a connection location and a bending location.

Further, by providing the nozzle 34, the air path from the inlet to the blowout can be configured with a single component, and the product including the periphery can be miniaturized. From the air flow A of the blower 32 and the casings 5 and 6, and the air conditioner. The airflow B can be easily arranged side by side.
Since the duct can be connected to the nozzle inlet 40 from the upper and side directions, the connection direction of the duct can be selected according to the installation location such as near the wall or in a narrow ceiling space, so the installation and use location is expanded And easy to install.
In particular, since the duct 38 can be connected also from the direction of the side surface 33 of the case, the duct can be easily connected even in a narrow space such as the back of the ceiling.

  Further, since the notch 55 is provided on the side surface 34b side of the nozzle 34, a part of the airflow B comes out of the notch 55 and is easily drawn into the airflow A, so that the cold air and warm air of the airflow B can be widely sent indoors. it can.

  Further, by providing the partition 50 at the inlet 40 of the nozzle 34, the air flow easily flows from the inlet 40 to the vent holes 52 and 54 by the rectifying action, and the pressure loss in the nozzle can be reduced.

  In addition, by using a material with high heat insulating property for the nozzle 34, when cold air flows in the nozzle, the thermal conductivity is low, so that the outer peripheral surface of the nozzle 34 is not easily cooled, and the surrounding case 31 is also low temperature. Since it is difficult to transmit, there are few areas where condensation occurs at a low temperature, and the area for attaching a heat insulating material to prevent condensation can be reduced.

  In addition, since the duct and nozzle from the air conditioner can be connected from above and from the side of the nozzle, it can be connected from either side depending on the situation of the installation space, and can be connected from the side. There is an effect that the connection can be easily made even in a narrow space such as a ceiling.

  In addition, since the notch is provided on the side of the air outlet side of the nozzle outlet, the air current from the nozzle is easily drawn into the air current on the air blowing means side, and the cool air and warm air from the nozzle are sent over a wide range. There is an effect that can.

  In addition, by providing a partition at the inlet of the nozzle, there is an effect that airflow can easily flow from the inlet to both the vent holes and pressure loss can be reduced.

  In addition, because the nozzle is made of a highly heat-insulating material, when cold air flows through the nozzle, the outer peripheral surface of the nozzle is unlikely to become low temperature, and it is difficult for the surrounding case to transmit low temperature, so there is a portion where condensation occurs. The effect of reducing the area for attaching a heat insulating material for preventing condensation is small.

It is a side view of the air blower of this invention. It is a lower top view of the air blower of this invention. It is sectional drawing which connected the duct of this invention to the side surface of the nozzle. It is sectional drawing which connected the duct of this invention to the upper surface of the nozzle. It is a perspective view of the nozzle of the air blower of this invention. It is sectional drawing of the nozzle of the air blower of this invention. It is a figure which shows the state of the flow of the airflow of this invention. It is a figure which shows the state of the flow of the airflow of this invention. It is sectional drawing of the conventional air blower. It is a side view of the conventional air blower.

Explanation of symbols

  3, 4 Fan, 5, 6 Casing, 31 Case, 34 Nozzle, 38 Duct, 40 Inlet, 41, 42 Air outlet, 50 Partition, 55 Notch.

Claims (3)

A body that opens into the room ;
A nozzle that is provided in the main body, communicates with an air conditioner through a duct, and blows out air from the duct toward the room;
A fan provided in the main body ;
Is formed in the circumferential direction before Symbol fans, air and a blowout opening for blowing air drawn inlet and the fan incorporated into the fan, the air in parallel from the nozzle air blown out from the air outlet casing and swinging rotation in the rotational direction of the fan so that
A blower comprising: The blower according to claim 1, wherein a notch portion in which a corner portion on a casing side of a nozzle outlet is cut is provided. The air blower according to claim 1, wherein a partition that divides the airflow from the duct is provided at a connection portion between the nozzle and the duct.

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