JP2011094919A - Outdoor unit for air conditioner and air conditioner provided with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor unit for air conditioner, capable of preventing water droplets from freezing between a fan and a bell mouth by a simple structure, or the like. <P>SOLUTION: The outdoor unit for air conditioner includes the bell mouth 4 provided on an outlet port 3 for a fan 2 of a front panel 1 to protrude inwardly, and a glowing grill 5 provided outside the outlet port 3. An eaves member 30 is provided on a peripheral upper portion of the outlet port 3 of the front panel 1, the eaves member 30 having a strip-like surface 31 having a predetermined width in the radial direction from the edge of the outlet port 3 and eaves portions 32, 33 protruding outwardly from the strip-like surface 31. The eaves member 30 is pressed to and mounted on the front panel 1 by the blowing grill 5. The eaves portions 32, 33 are provided to face to each other along the outer and inner peripheries of the strip-like surface 31. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an outdoor unit of an air conditioner and an air conditioner including the same, and more particularly, to an outdoor unit of an air conditioner that can prevent water droplets from icing between a fan and a bell mouth, and The present invention relates to an air conditioner provided with this.

  In the outdoor unit of an air conditioner, during heating operation, water droplets attached to the front panel surface due to rain or snow, etc., or water droplets that melted on the top of the outdoor unit fall along the surface of the panel, May intrude between bellmouth and fan. In addition, when the outside air temperature is low, the blown air temperature of the fan may be below the freezing point. In such a case, water droplets that have entered between the bell mouth and the fan are frozen, and the amount of water droplets is large. In some cases, the frozen ice grows and comes into contact with the fan to generate an abnormal noise, or the outdoor unit stops abnormally by preventing the fan from rotating.

  In order to solve such a problem, a seal member having a width equal to or larger than the diameter of the air outlet is provided above the air outlet and seals between the casing and the air outlet grille, and water droplets do not flow into the bell mouth from this portion. The outdoor unit of the air conditioner which was made is proposed (for example, refer patent document 1).

Japanese Patent No. 2510078 (2nd page, FIG. 1)

  In the invention of Patent Document 1, when the gap between the casing and the upper part of the blow-off grill is sealed with a seal member, a frame-like edge is required on the outer periphery, at least the upper side, of the grill welded with iron wire, and this only impairs the appearance design. In addition, since the plate-shaped parts must be combined with the iron wire portion, the manufacturing cost is increased.

  In addition, since it is difficult to close the gap at the center portion by fixing only the both ends of the blow grill, it is necessary to increase the fixing screws of the blow grill, which causes a problem that appearance and workability deteriorate. It was.

  Furthermore, as a means to reduce the screw fixing location, only the both ends are fixed and the intermediate portion is pressed using the elasticity of the grill itself to suppress the occurrence of rattling and vibration noise. In this case, due to the elasticity of the grille itself, it is fixed in a state where it is bent from both ends to the center, so when sealing between the grille and the front panel, the shape of the seal member is curved and surely seals. It was difficult.

  In addition, since the seal member needs to have the same width as the thickness, a wall is formed at a position 10 mm or more lower than the position of the upper surface of the grill. For this reason, to reduce the product size and improve the performance In designing products that set the fan diameter to the maximum, the seal member protrudes toward the air passage side at the center of the upper side to block the blowout from the fan, which is a cause of noise generation and aerodynamic performance. It was.

  The present invention has been made to solve the above-described problems, and has an air conditioner outdoor unit that can prevent water droplets from icing between a fan and a bell mouth with a simple structure, and An air conditioner provided with this is provided.

An outdoor unit of an air conditioner according to the present invention is provided with a bell mouth projecting inwardly at a blower outlet of a fan on a front panel and having an outlet grill provided outside the blower outlet. Because
On the upper peripheral edge of the air outlet of the front panel, there is provided a gutter member having a band-like surface having a predetermined width in the radial direction from the edge of the air outlet, and provided with a collar portion protruding outward from the belt-like surface, The scissors member is attached to the front panel side by a blow grill.
Moreover, the air conditioner which concerns on this invention is equipped with said outdoor unit.

  Water drops that fall along the surface of the panel are dropped from the outside of the front panel by the scissors member and do not enter between the fan and the bell mouth. No freezing occurs with Bellmouth.

1 is a perspective view of an air conditioner according to an embodiment of the present invention. It is a front view of the principal part of FIG. It is a perspective view of the principal part of FIG. It is a disassembled perspective view of the principal part of FIG. It is a perspective view of the principal part of FIG. It is the perspective view which looked at the collar member of FIG. 1 from the front side, and its AA sectional drawing. It is the perspective view which looked at the collar member of FIG. 1 from the back side. It is BB sectional drawing of FIG.

  1 to 5, the front panel 1 of the outdoor unit of the air conditioner is provided with a blower outlet 3 of a propeller fan 2, and the blower outlet 3 has a circular bell mouth protruding inward. 4 is provided, and an outlet grill 5 formed in a lattice shape is attached to the outside of the outlet 3.

  The blow-out grill 5 includes a spiral iron wire 10 in which iron wires are concentrically arranged, and a radiant iron wire 11 arranged radially with respect to this, and the spiral iron wire 10 is joined to the radiant iron wire 11 inside the radiant iron wire 11. Has been. In addition, the central part vicinity of the blowing grill 5 is opened circularly, and the iron wire is not provided in this part.

  The radiating iron wire 11 is equiangular in the vertical direction (vertical radiating iron wire 111), left and right direction (left and right radiating iron wire 112), and oblique direction (diagonal radiating iron wires 113 and 114). A leg portion 5a is formed by being arranged substantially parallel to the surface and being bent substantially at right angles to the front panel 1 side on the peripheral side.

  A small-diameter spiral iron wire (front spiral iron wire 101) is attached to the radiant iron wire 11 on the front side of the air outlet in a flat shape, and the radiant iron wire 11 on the peripheral edge of the air outlet has a diameter larger than that of the front spiral iron wire 101. An iron wire (peripheral spiral iron wire 102) is attached. Thus, the blow-out grill 5 has a substantially U-shaped cross section as a whole, and a plurality of legs 5a are formed on the front panel 1 side. The peripheral spiral iron wire 102 is attached to the bent portion of the leg portion 5a of the radiating iron wire 11 and two places on the front panel 1 side.

A screw fixing portion 111a for screw fixing to the front panel 1 is provided at the outer end of the leg portion 5a of the upper and lower radiating iron wires 111, and a screw hole 6 is formed in the front panel 1 correspondingly. ing. Then, the screw fixing portion 111 a and the screw hole 6 are aligned and the screw 7 is tightened to fix the upper and lower radiation iron wires 111 to the front panel 1. The screw hole 6 of the front panel 1 is formed so as to be recessed by the thickness of the screw fixing portion 111a, and when the screw 7 is attached to the front panel 1, the surface height of the screw fixing portion 111a is substantially flush with the surface of the front panel 1. It is supposed to be.
In addition, a strip-like semicircular recess 8 having a constant width in the radial direction from the edge of the blowout port 3 and the same depth as the screw hole 6 is formed on the upper peripheral edge of the blowout port 3. It communicates with the screw hole 6.

  The outer ends of the leg portions 5a of the left and right radiating iron wires 112 are further bent to be inserted into the front panel 1, and are provided with locking portions 112a. The front panel 1 corresponds to the locking portions 112a. A locking hole 9 is provided. The locking hole 9 has a U-shaped recess, the front surface is opened, and the locking portion 112a of the left and right radiating iron wires 112 is inserted and locked.

  Since the blowing grill 5 and the front panel 1 may generate vibration noise due to vibration generated during the operation of the air conditioner, iron wires are not attached to the outer ends of the leg portions 5a of the oblique radiating iron wires 113 and 114. Radiation iron wire extensions 113a and 114a that are extended to contact with the member 30 (described in detail later) are provided, and the blowout grill 5 made of iron wire is bent to generate a repulsive force, thereby preventing rattling. I try to prevent it.

  A semicircular eaves member 30 is disposed on the upper side of the blowing grill 5 along the leg portion 5 a, and this eaves member 30 is a screw fixing portion 111 a provided at the end of the radiant iron wire 11 of the blowing grill 5. The front portion 1 is pressed and fixed by the extension 112a and the radiating iron wire extensions 113a and 114a.

  As shown in FIGS. 6 to 8, the flange member 30 is made of a flame retardant plastic, and has a substantially same curvature as that of the upper peripheral edge of the outlet 3, and is predetermined in the radial direction from the edge of the outlet 3. A belt-like surface 31 having a width of 5 mm is provided, and an inner circumferential flange 33 is formed in a bowl shape along the inner diameter side of the peripheral spiral iron wire 102 (leg portion 5a) of the blowing grill 5 on the inner circumferential side of the belt-like surface 31. The outer peripheral side of the belt-like surface 31 is provided with a plurality of outer peripheral flanges 32 at predetermined intervals along the outer diameter side of the peripheral spiral iron wire 102 (leg part 5a). These flange portions 32 and 33 have a downward slope toward the left and right ends.

  The inner peripheral flange 33 is continuously formed in a band shape along the peripheral edge of the blower outlet 3, and is positioned substantially orthogonal to the surface of the front panel 1 toward the outside of the front panel 1. The flanges 32 are formed at predetermined intervals along the peripheral edge of the air outlet 3, and each is located substantially orthogonal to the surface of the front panel 1 toward the outside of the front panel 1. And a pair of outer periphery collar part 32a is located in the left and right of the upper and lower radiation iron wire 111, and the outer periphery collar part 32b is also located in the upper part of the left and right radiation iron wire 112, respectively (FIG. 3, FIG. 6). The peripheral spiral iron wire 102 of the blowout grill 5 (the leg portion 5a of the blowout grill 5) is inserted between the outer peripheral flange portion 32 and the inner peripheral flange portion 33.

  The back side of the band-shaped surface 31 of the flange member 30 is formed in a planar shape as a surface in contact with the front panel 1, and the plane portion 31 a is formed in the peripheral edge of the air outlet 3 of the front panel 1, that is, in the band-shaped semicircular recess 8. It is made to be in a watertight state by pressing (see FIGS. 5, 7, and 8).

As shown in FIG. 8, the eaves member 30 is sandwiched and fixed between the front panel 1 and the blowout grill 5, and at this time, the eaves portion 30 (the outer periphery eaves portion 32 and the inner periphery eaves portion 33). ) Is sufficiently separated from the front panel 1, and the tip 33 a of the inner peripheral flange 33 is provided with a gap G of about 2 mm to 10 mm on the inner side of the radiant iron wire 11 of the blowing grill 5.
In this way, the water droplets that flow down from the upper part of the outdoor unit along the surface of the front panel 1 ride on the flange member 30 (the outer peripheral flange portion 32 and the inner peripheral flange portion 33) that has become a bowl shape of the flange member 30, and It is dropped at a position away from the surface of the panel 1 forward.

  In addition, as shown in FIG. 8, the strip | belt-shaped surface 31 of the eaves member 30 has a downward slope toward the outward from the front panel 1 in the blower outlet 3 side. That is, the taper surface 34 a is formed in the air passage projecting portion 34 from which the flange member 30 protrudes downward from the contact surface between the front panel 1 and the flange member 30, and the flange member 30 protrudes into the air path of the outlet 3. While minimizing the amount, the air path is smoothed so as not to obstruct the blowing of the wind.

The operation of the present invention configured as described above will be described.
The leg portion 5a of the blowing grill 5 is inserted between the outer peripheral flange portion 32 and the inner peripheral flange portion 33 of the flange member 30 so that the flange member 30 is sandwiched between the blow grill 5 and the flat surface portion 31a on the back surface side of the flange member 30. Is pressed against the peripheral edge of the air outlet 3 of the front panel 1, more specifically, the strip-shaped semicircular recess 8, and in this state, the extension 112a of the left and right radiating iron wires 112 is inserted into the insertion hole 9 of the front panel 1, and then The screw fixing portions 111 a of the upper and lower radiant iron wires 111 and the screw holes 6 of the front panel 1 are aligned, and the screws 7 are tightened to fix the radiated iron wires 11 to the front panel 1. Thus, the eaves member 30 is sandwiched between the front panel 1 and sealed as shown in FIG.

  During the winter heating operation, water droplets attached to the front panel surface due to rain, snow, etc., or water droplets that have melted snow on the top of the outdoor unit fall along the surface of the panel. The dropped water drop rides on the bowl-shaped outer peripheral flange 32 and inner peripheral flange 33 of the flange member 30 and drops to a position away from the front surface of the front panel 1. Since it drips from the outside of the front panel 1, it does not enter between the fan 2 and the bell mouth 3.

  According to the embodiment, water drops that have dropped along the surface of the panel are dropped from the outside of the front panel 1 by the gutter member 30 and do not enter between the fan 2 and the bell mouth 5. Even when the temperature of the fan 2 is lower than the freezing point because the temperature is low, icing does not occur between the fan 2 and the bell mouth 5, and abnormal noise of the fan 2 due to icing can be prevented. .

  Further, since the eaves member 30 is sandwiched in advance in the blowout grill 5, and the eaves member 30 and the blowout grill 5 are fixed to the front panel 1 with the screws 17, the workability is good without increasing the number of screws, and the cost is low. .

  Furthermore, since the radial iron wire 11 is provided with the radial iron wire extension 113a that extends to a position where it interferes with the eaves member 30 and comes into contact with the eaves member 30, the blowout grill 5 made of iron wire bends and generates a repulsive force. While preventing rattling, the front panel 1 can be securely adhered.

  In addition, since the tapered surface 34a is formed on the lower air path projecting portion 34 from the contact surface between the front panel 1 and the eaves member 30, the amount of eaves member 30 protruding into the air path is minimized, and the wind The obstruction to the balloon can be reduced.

  Furthermore, since the eaves member 30 is disposed in a semicircular shape on the upper portion of the blow-out grill 5, it is hardly noticeable in appearance and does not hinder the design.

  In addition, since the material of the eaves member 30 is made of flame retardant plastic, it is possible to prevent the spread of fire from the fire around the outdoor unit, and to spread outside even if sparks from the electrical parts of the main body occur. There is nothing to do.

  DESCRIPTION OF SYMBOLS 1 Front panel, 2 fan, 3 blower outlet, 4 bell mouth, 5 blowout grill, 5a leg of blowout grill, 6 screw hole (fixed hole), 8 strip-shaped semicircle recessed part (recessed part), 10 spiral iron wire, 11 radiation Iron wire, 30 flange member, 31 strip-shaped surface of flange member, 32 outer peripheral flange portion, 33 inner peripheral flange portion, 33a tip of inner peripheral flange portion, 34a taper surface, 111a screw fixing portion (fixing portion of blowing grill), 113a Radiation iron wire extension (contact portion with the flange member), G gap.

Claims (11)

An air conditioner outdoor unit provided with a bell mouth projecting inwardly at a blower outlet of a fan on the front panel, and provided with a blowout grill on the outside of the blowout port,
An eaves member having a band-like surface having a predetermined width in the radial direction from the edge of the air outlet at the upper peripheral edge of the air outlet of the front panel, and a flange that protrudes outward from the belt-like surface Provided,
An outdoor unit for an air conditioner, wherein the flange member is attached to the front panel by pressing the blow grill.   The outdoor unit for an air conditioner according to claim 1, wherein the flange member is formed in a substantially semicircular shape, and a band-like surface of the flange member is attached along the upper peripheral edge of the blowout port of the front panel. .   The outdoor unit of an air conditioner according to claim 1 or 2, wherein the flange portion is provided so as to be opposed along the outer peripheral side and the inner peripheral side of the belt-like surface.   The collar portion provided along the peripheral edge portion on the inner peripheral side of the belt-shaped surface is continuously formed in a belt shape, and the collar portion provided along the peripheral edge portion on the outer peripheral side is formed in a belt shape at a predetermined interval. The outdoor unit for an air conditioner according to claim 3, wherein the outdoor unit is formed.   The blowing grill has a substantially U-shaped cross section and protrudes outward, has a lattice shape with legs on the front panel side, and the inner peripheral side flanges are arranged along the inner peripheral side of the legs of the blowing grill. The air conditioner according to claim 3 or 4, wherein a flange portion on the outer peripheral side is disposed along an outer peripheral side of the leg portion, and the flange portion is sandwiched between the blowout grills. The outdoor unit of the machine.   6. The air conditioner according to claim 3, wherein a front end portion of the flange portion on the inner peripheral side of the flange member is disposed through a gap with a front portion of the blowout grill. Outdoor unit.   The blowout grill is composed of concentric spiral iron wires and radial iron wires arranged radially with respect thereto, and a fixing portion of the blowout grill is provided at a part of the outer end of the radiation iron wire. The other radiation iron wire is provided with a contact portion with the flange member, and the fixing portion and the contact portion press and sandwich the flange portion against the front panel, thereby sealing between the front panel. The outdoor unit of the air conditioner in any one of Claims 1-6.   A fixing hole is provided in the front panel corresponding to the fixing portion of the blowout grill, and a recess having a constant radial width is provided along the edge of the blowout opening in communication with the fixing hole. The outdoor unit for an air conditioner according to claim 7, wherein a band-like surface of the flange member is engaged with the outdoor unit.   The air conditioner according to any one of claims 3 to 8, wherein the flange portion on the inner peripheral side of the flange member has a tapered surface that is inclined outward from the front panel toward the outlet. Outdoor unit.   The outdoor unit for an air conditioner according to any one of claims 1 to 9, wherein the flange is formed of a flame-retardant plastic.   An air conditioner comprising the outdoor unit according to claim 1.

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