JP5263539B2 - Air conditioner outdoor unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To inexpensively provide an outdoor unit of an air conditioner capable of being stably used for a long period. <P>SOLUTION: All of a front panel 500 covering an opening section of a front face of an outdoor unit housing 100 and a supply grille 520 of an air distribution fan 6 are integrally molded from a sheet of a metallic plate, and the supply grille 520 is disposed in a state of projecting to a direction separating from an air distribution fan 3, from a panel face of the front panel 500. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an outdoor unit of an air conditioner, and more particularly to an improvement in productivity of a front panel of an outdoor unit housing.

  A recent air conditioner is mainly a so-called split type in which an indoor unit arranged on the indoor side and an outdoor unit arranged outdoors are separated. For example, as shown in Patent Document 1, an outdoor unit includes a box-shaped outdoor unit housing, and a compressor, a heat exchanger, a blower fan, and the like are provided therein, along with various electric signal lines and piping. Connected to outdoor unit.

  The outdoor unit housing is arranged to cover the base panel that is horizontally arranged on the installation surface such as the ground or a veranda, a pair of side panels that are erected from the base panel, and the opening on the front side of the side panel. And a ceiling panel that covers the top surface.

  As shown in Patent Document 1, a conventional front panel is provided with a blower grill of a blower fan in a part of a rectangular panel body. The blow-out grill is provided so as to face the blower fan, and a lattice-like cross is provided in order to prevent a finger or the like from contacting the blower fan during rotation.

Usually, a molded product of a synthetic resin is used for the front panel because of productivity and cost. However, when the front panel is made of synthetic resin, the following problems occur. That is, once an outdoor unit of an air conditioner is installed outdoors, it is exposed to wind and rain and sunlight for a long time.
Therefore, a material having good weather resistance and corrosion resistance is required. Furthermore, in order to prevent the spread of fire due to the flame, a flame retardant resin is used. However, since the flame retardant resin has a high material cost, it cannot be denied that the production cost becomes higher.

  Therefore, in order to further reduce the production cost, as shown in Patent Document 2, for example, a method has been proposed in which a grill bar in which a metal wire is formed in a lattice shape is attached to a blowing grill. According to this, not only can the cost required for molding the panel main body be reduced, but also the production cost can be further reduced by using a general-purpose metal wire.

  However, since the method described in Patent Document 2 is formed into a bar shape by welding or bonding wires together, the number of production steps increases.

  The grill bar is designed so that even if a test finger having a diameter of 12 mm is pushed with a force of 5 N, the finger does not enter so that a person does not injure the person by inserting his finger.

JP 2006-162094 A JP 2003-214658 A

  Therefore, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide an outdoor unit for an air conditioner that can be used stably over a long period of time at a lower cost. .

In order to achieve the above-described object, the present invention has several features described below. The invention according to claim 1 is provided with an outdoor unit housing having a compressor, a heat exchanger, and a blower fan inside, and the front surface of the outdoor unit housing covers the opening on the front surface of the outdoor unit body. In an outdoor unit of an air conditioner in which a front panel having a panel main body and a blowout grill of the blower fan is arranged, the panel main body and the blowout grill are integrally formed of a single metal plate, The blow-out grill projects from the panel surface of the panel body in a direction away from the blower fan, and a louver is integrally formed on the blow-off grill, and the louver of the louver is formed from the grill surface of the blow-off grill. The louver is provided so that x <y, where x is the distance to the tip on the blower fan side and y is the distance from the grill surface of the blowout grill to the other tip of the louver. It is characterized in that.

According to a second aspect of the present invention, an outdoor unit housing having a compressor, a heat exchanger, and a blower fan is provided therein, and the front surface of the outdoor unit housing covers an opening on the front surface of the outdoor unit body. In an outdoor unit of an air conditioner in which a front panel having a panel main body and a blowout grill of the blower fan is arranged, the panel main body and the blowout grill are integrally formed of a single metal plate, The blow-out grill projects from the panel surface of the panel body in a direction away from the blower fan, and a louver is integrally formed on the blow-off grill, and the louver of the louver is formed from the grill surface of the blow-off grill. When the distance to the tip on the blower fan side is x, the distance from the grilling surface of the blowing grill to the other tip of the louver is y, and the opening width between the louvers is h, the louver Is characterized in that is provided such that x> y and x <h.

According to a third aspect of the present invention, in the second aspect of the present invention, when the projected opening width of the louver when the louver is viewed from the front is h ′, the louver is provided so that h> h ′. It is characterized by that.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the louver is provided to be inclined with respect to the air flow direction .

A fifth aspect of the present invention is characterized in that, in any one of the first to fourth aspects, the blowout grill has a grille surface protruding from the panel body by drawing .

According to the onset bright, by providing overhanging the outlet grille of the front panel which is integrally molded with a metal plate in a direction away from the blower fan, it is possible to produce a front panel inexpensive, yet outlet grille Ventilation resistance can be reduced.

Further, by projecting the blowout grill by drawing, the blowout grill can be uniformly formed with a single metal plate, and the production process and production cost can be further reduced.

Further, x <y, where x is the distance from the grill surface of the blowing grill to the tip of the louver on the blower fan side, and y is the distance from the grill surface of the blowing grill to the other tip of the louver, or the opening between the louvers By setting x> y and x <h when the width is h, the distance from the fan to the louver is increased, so that the air resistance can be further reduced.

Further, the projection aperture width of the louvers viewed louvers from the front by providing 'an h>h' h so that the distance of the fan and the louver can be separated more, and can be reduced more air resistance .

Further, by providing the louver with an inclination with respect to the air flow direction, not only can the finger be prevented from being inserted more reliably, but also the end face of the louver can be separated from the fan. Furthermore, by making it incline along the flow of air, a flow can be made smooth and ventilation efficiency can be improved.

The disassembled perspective view of the outdoor unit of the air conditioner which concerns on one Embodiment of this invention. (A) The front view of the said outdoor unit, (b) Sectional drawing which abbreviate | omitted a part of internal structure of the said outdoor unit. The perspective view of the front panel of the said outdoor unit. (A) Typical sectional drawing of the blowing grill of the said front panel, (b) (c) The schematic diagram showing the modification of the said blowing grill. (A) The expansion perspective view of the blowing grill of the above-mentioned front panel, (b) The AA line sectional view of Drawing 5 (a). (A)-(f) The front view showing the modification of a blowing grill.

  Next, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the outdoor unit of this air conditioner includes a box-shaped outdoor unit housing 100, which includes a compressor 1, a heat exchanger 2 and a blower fan 3 included in a refrigeration cycle. And an electrical component box 4 including these control boards.

  The interior of the outdoor unit housing 100 is partitioned into a compressor room and a heat exchanger room by a partition plate 5, and the compressor 1 and piping attached thereto are installed in the compressor room. Yes. The heat exchanger 2 is formed in an L shape, and is disposed along one side surface from the back surface of the outdoor unit housing 100.

  As the heat exchanger 2, a so-called fin tube type heat exchanger in which refrigerant pipes are arranged so as to be orthogonal to a large number of parallel radiating fins may be used. In this example, the heat exchanger 2 is an L-shaped integrally formed heat exchanger unit. For example, the back-side heat exchanger unit and the side-side heat exchanger unit are connected. May be. In the present invention, the specific configuration of the heat exchanger 2 is an arbitrary matter.

  Referring also to FIG. 2, the blower fan 3 sucks air from the back surface of the outdoor unit housing 100 (the right side surface: the heat exchanger 2 side in FIG. 2B), and the front surface (FIG. 2B). Then, it is an axial flow fan which blows out toward the left side surface (the blowing grill 520 side).

  The blower fan 3 includes a fan motor 31 attached to the fan mounting base 6 and a fan main body 32 driven by the fan motor 31. A fan ring 33 is provided on the outer periphery of the fan body 32 to increase the suction efficiency. The fan ring 33 is fixed to the back surface of the front panel 500 described later with screws. In the present invention, the specific configuration of the blower fan 3 may be arbitrary.

  The electrical component box 4 includes a box main body 41 in which a power supply board and the like are housed, and a lid 42 of the box main body 41. In this example, the electric component box 4 is fixed to the upper end side of the partition plate 5 by screws. In the present invention, the specific configuration of the electrical component box 4 may be arbitrary.

  Referring to FIG. 1 again, the outdoor unit main body 100 includes a base panel 200 installed on an installation surface such as the ground, and a pair of side panels 300 erected from opposite sides of the base panel 200. 400, a front panel 500 disposed on the front side of the outdoor unit housing 100, and a ceiling panel 600 that covers the side panels 300 and 400 and the upper end side of the front panel 500. The side panels 300 and 400 and the front panel 500 may be integrated.

  The base panel 200, the side panels 300 and 400, the front panel 500, and the ceiling panel 600 are all formed by press-forming steel plates. The surface of each panel is subjected to paint treatment or coating treatment such as rust prevention and corrosion prevention.

  The base panel 200 is formed in a rectangular dish shape whose peripheral edge is bent at a substantially right angle toward the top, and legs 210 and 210 installed on the installation surface are provided at the bottom. The above-described partition plate 5 is fixed to the base panel 200, and the compressor 1 is installed on the right side and the heat exchanger 2 is installed on the left side of the partition plate 5 with the partition plate 5 in between.

  The base panel 200 is further provided with a fan mount 6 that supports the blower fan 3. One end of the fan mounting base 6 is fixed to the base panel 200, and the main frame 61 is raised substantially vertically from the base panel 200 toward the ceiling panel 600, and the reinforcing frame is bent into an L shape from the tip of the main frame 61. And 62 made of a metal angle member.

  A fan motor 31 is attached to substantially the center of the main frame 61. A fixing hook 63 that is hooked on a part of the heat exchanger 2 is provided at the base of the main frame 61 and the reinforcing frame 62. The front end of the reinforcing frame 62 extends to the front side of the ceiling panel 600, and a support stay 64 that supports the front panel 500 is further provided at the front end.

  A side panel 300 (hereinafter referred to as a left side panel 300) on the heat exchanger chamber side is a single metal panel that covers the left side surface of the outdoor unit housing 100, and both ends thereof are on the front side of the base panel 200. And it is bent in an R shape over the back side.

  The left side panel 300 is provided with a side suction grill 310 for taking in air toward the heat exchanger 2 arranged along the inside of the left side panel 300. The side suction grill 310 is provided with a large number of ventilation holes obtained by punching a part of the left side panel 300 into an elliptical shape.

  The machine room side panel 400 (hereinafter referred to as a right panel 400) is a single metal panel that covers the right side of the outdoor unit housing 100, and both ends thereof are on the front side and the back side of the base panel 200. It is bent in an R shape over the side.

  The right side panel 400 is provided with a grip 410 for lifting the outdoor unit housing 100. The grip 410 is fixed to the upper center of the right side panel 400 by screws.

  The right side panel 400 is further provided with a connection part 420 to which various pipes and cords for connecting the outdoor unit 100 and the indoor unit are connected. The connection part 420 is provided in the lower part of the right side panel 400, and is normally covered with a removable protective cover 430.

  Next, the configuration of the front panel 500 will be described with reference to FIGS. The front panel 500 includes a panel main body 510 disposed so as to cover the heat exchanger chamber of the outdoor unit housing 100 and the front surface of the machine room, and a blow grill 520 of the blower fan 3 in a part of the panel main body 510. These are integrally formed by subjecting a single metal plate to machining such as press molding.

  The front panel 500 has a panel body 510 that covers the opening on the front surface of the outdoor unit housing 100, and a blow grill 520 of the blower fan 3 is provided on a part of the panel body 510. The panel main body 510 is bent in an R shape so that both ends (both left and right ends in FIG. 2A) overlap a part of each of the side panels 300 and 400.

  Near the center of the upper end of the panel body 510, a fixing hole 511 is provided that is fixed to the support stay 64 of the fan mounting base 6 via a screw. Hooks (both not shown) for hooking the front panel 500 to the side panels 300 and 400 are provided on the back side of both ends of the panel body 510, but these hooks are optional items in the present invention. Therefore, the description is omitted.

  The blow-out grill 520 is provided so as to project in a direction away from the blower fan 3 (left side in FIG. 2B) by drawing. In this example, the blowout grill 520 is provided so that the amount of projection a extending from the panel surface 510a of the panel body 510 to the grille surface 520a of the blowout grill 520 is 10 mm.

  In this example, the overhang amount a of the blow grill 520 is 10 mm, but the overhang amount a may be at least 10 mm or more. According to this, since the distance b from the tip of the fan main body 32 of the blower fan 3 to the grille surface is sufficiently long, even if a finger is inserted from the blowout grill 520, the finger is prevented from touching the blower fan 3. Can do. Furthermore, the torsional strength of the blowing grill 520 can be increased.

  The blow grill 520 is provided with a plurality of crosspieces 521 extending radially from the center in the radial direction, and air blowout holes 522 for releasing the air sent from the blower fan 6 to the outside between the crosspieces 521. Is provided.

  The crosspiece 521 of the blowout grill 520 is further provided with a louver 530 for sending air out of the machine without resistance from the air blowout hole 522 and preventing insertion of a finger or the like. Moreover, even if a finger is inserted into the blowout grill, it is possible to prevent the fingertip from touching the blower fan.

  As shown in FIG. 4A, the louver 530 is formed by cutting and raising a part of the blowing grill 520 to form a fin. In this example, the louver 530 has a predetermined interval in the radial direction from the central axis of the blower fan 6. Has been placed.

  In this example, the louvers 530 are formed to be substantially parallel along the air flow direction (the arrow direction in FIG. 4A). According to this, the air flow can be further improved without hindering the air flow.

  The louver 530 is provided so that x <y, where x is the distance from the blowing surface of the blowing grill 520 (the base of the crosspiece 521) to the tip on the blower fan 3 side, and y is the distance to the other tip. It has been.

  According to this, by setting x <y, the long fins of the louver 530 are arranged so that the fins face outward, so that the distance from the blower fan 6 can be further earned. On the other hand, as shown in FIG. 4B, x> y may be provided. In this case, it is preferable to secure a slightly longer distance b from the blowing grill 520 to the blower fan 3.

  Further, as shown in FIG. 4C, the louver 530 is provided so as to satisfy x> y, and the louver 530 is provided so as to satisfy x> y and x <h when the interval between the louvers 530 is h. Is preferred.

  According to this, since the louver 530 is separated from the fan body 32 by reducing x of the louver 530, the air resistance is reduced. Moreover, it is preferable to provide it so that it may incline with respect to the grill surface of the blowing grill 520. According to this, exhaust efficiency can be further improved by providing the louver 530 along the flow of the swirling air generated by the blower fan 6.

  As a more preferable aspect, when the projection opening width of the louver 530 when the louver 530 is viewed from the front is h ′, the louver 530 is provided so that h> h ′. According to this, the distance between the fan and the louver can be increased, and the air resistance can be reduced.

  Furthermore, by tilting the louver 530, the opening area of the air outlet 522 is not reduced, and the projected area in the front direction can be reduced. According to this, it is possible to prevent the insertion of a finger from the air outlet 522 more reliably. Furthermore, since the projection opening width h ′ of the air outlet 522 as viewed from the front is smaller than the interval h of the louvers 530, it is possible to prevent a finger from being inserted.

  In this example, the crosspiece 521 and the louver 530 of the blowout grill 520 are formed by slitting a part of the blowout grill 520 and then pressed, whereby the crosspiece 521 and the louver 530 are integrally formed at the same time.

  As shown in FIG. 5B, in this example, the crosspiece 521 is preferably bent so as to be inclined with respect to the grill surface 520a of the blowing grill 520. According to this, the projection area of the crosspiece 521 can be reduced when the crosspiece 521 is inclined with respect to the grille surface 520a when viewed from the front (upper surface in FIG. 5). Therefore, it is possible to reduce the portion where air hits the crosspiece 521, further reduce the air resistance, and increase the exhaust efficiency.

  In this example, the crosspiece 521 and the louver 530 are radially formed from the center toward the radial direction, and the louver 530 is provided so as to straddle the crosspiece 521, but various other modifications are also included in the present invention. It is.

  That is, as shown to Fig.6 (a), the blowing grill 520a has the three crosspieces 521 extended along an up-down direction, and each crosspiece 521 is arrange | positioned in parallel with predetermined spacing. A large number of louvers 530 are provided between the bars 521 at predetermined intervals in the vertical direction. According to this, since the direction in which the louver 530 is raised and raised is constant, it is not necessary to make the press mold complicated, and the blowout grill 520a can be manufactured easily and inexpensively.

  Further, as shown in FIG. 6B, this blow grill 520b is the same until the crosspieces 521 are provided radially from the center and the louvers 530 are provided between the crosspieces 521 as in the above-described embodiment. However, each louver 530 is arranged in the radial direction of each crosspiece 521. According to this, since the louver 530 is disposed along the rotational axis direction of the fan body 32, the blowing efficiency of the blowing grill 520b can be increased.

  As shown in FIG. 6 (c), the blow grill 520c is provided with the crosspieces 521 radially, and the louvers 530 are provided in the radial direction between the crosspieces 521, which are basically shown in FIG. 6 (b). Although the shape is the same, in this example, reinforcing bars 523 for reinforcement are further provided between the bars 521.

  According to this, since the reinforcing bar 523 is provided, not only is it difficult to be deformed even if an external force is applied to the blowing grill 520, but the strength around the blowing grill 520c is increased. Generation of vibration can be suppressed.

  In the embodiment shown in FIG. 6C, the reinforcing bars 523 are respectively provided between the eight bars 521 extending in the radial direction, and are formed so as to be approximately half the length of each bar 521. In order to increase the strength, it may be formed as shown in FIG.

  That is, this blow grill 520d increases the number of crosspieces 521 extending in the radial direction from the center and increases from 8 to 12 locations. According to this, the strength can be further increased by increasing the number of crosspieces 521. At the same time, the number and shape of the louvers 530 are also changed, and the angle of the louvers 530 with respect to the fan main body 32 can be reduced.

  Further, as shown in FIG. 6 (e), the blow grill 520e has each crosspiece 521 extending upward, downward, leftward, and rightward from the center. A louver 530 is provided.

  As another embodiment, as shown in FIG. 6 (f), the blow grill 520f has an annular bar 521a extending concentrically, and a louver 530a is continuously arranged in an annular shape between the bars 521a. Has been.

  In each louver 530a, the blowout holes are annularly arranged according to the shape of the crosspiece 521a. According to this, the louvers 530a are annularly arranged according to the flow of the swirl vortex generated by the rotation of the blower fan 6. Thus, the air can be discharged more efficiently outside the machine.

  Referring to FIG. 1 again, ceiling panel 600 is formed in a rectangular dish shape that covers the upper edges of side panels 300 and 400 and front panel 500. In the present invention, the specific shape of the ceiling panel 600 may be an arbitrary matter.

  In this example, the outdoor unit of the air conditioner has been described as an example of a separate type in which the indoor unit and the outdoor unit are separated. However, the outdoor unit is applied to an integrated unit in which the outdoor unit and the indoor unit are integrated. Also good. As mentioned above, although one Embodiment of this invention was described using each drawing, this invention is not limited to this.

DESCRIPTION OF SYMBOLS 1 Compressor 2 Heat exchanger 3 Blower fan 4 Electrical component box 5 Partition plate 6 Fan mounting base 100 Outdoor unit housing 200 Base panel 300 Left side panel 400 Right side panel 500 Front panel 600 Ceiling panel

Claims (5)

An outdoor unit housing having a compressor, a heat exchanger, and a blower fan inside is provided, and a front panel of the outdoor unit housing covers a panel body that covers an opening of the front surface of the outdoor unit body, and a blowout of the blower fan. In an outdoor unit of an air conditioner in which a front panel having a grill is arranged,
The panel body and the blowout grill are integrally formed of a single metal plate, and the blowout grill is projected from the panel surface of the panel body in a direction away from the blower fan ,
A louver is integrally formed in the blowing grille, and the distance from the grilling surface of the blowing grille to the tip of the louver on the blower fan side is x, and the distance from the grilling surface of the blowing grille to the other tip of the louver The outdoor unit of an air conditioner , wherein the louver is provided so that x <y, where y is a distance . An outdoor unit housing having a compressor, a heat exchanger, and a blower fan inside is provided, and a front panel of the outdoor unit housing covers a panel body that covers an opening of the front surface of the outdoor unit body, and a blowout of the blower fan. In an outdoor unit of an air conditioner in which a front panel having a grill is arranged,
The panel body and the blowout grill are integrally formed of a single metal plate, and the blowout grill is projected from the panel surface of the panel body in a direction away from the blower fan,
A louver is integrally formed in the blowing grille, and the distance from the grilling surface of the blowing grille to the tip of the louver on the blower fan side is x, and the distance from the grilling surface of the blowing grille to the other tip of the louver An outdoor unit of an air conditioner , wherein the louver is provided such that x> y and x <h, where y is a distance and h is an opening width between the louvers . 3. The air conditioner according to claim 2 , wherein the louver is provided so that h> h ′, where h ′ is a projected opening width of the louver when the louver is viewed from the front. Outdoor unit. The outdoor unit of an air conditioner according to any one of claims 1 to 3, wherein the louver is provided to be inclined with respect to the air flow direction. The outlet grille is squeezed outdoor unit of an air conditioner according to any one of claims 1 to 4, characterized in that it is flared grill surface from the panel body by machining.

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