JP2009085485A - Outdoor unit of air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor unit of an air conditioner in which side panels are prevented from being warped or deformed even if materials of the side panels are changed to resin materials. <P>SOLUTION: A pair of right and left reinforcing plates 16 are screwed to the rear surface of the right side panel 3 formed of a resin material at only one tightening part with screws 40. The reinforcing plates 16 are screwed to a base 1 and a top plate 6. Since the reinforcing plates 16 are screwed to the base 1 and the top plate 6, even if the right side panel 3 and the reinforcing plates 16 which have different coefficients of expansion are repeatedly expanded and contracted in hot environments in summer and cold environments in winter, an effect of the deformation of the reinforcing plates 16 on the right side panel 3 can be minimized since the right side panel 3 is secured to the reinforcing plates 16 at only one position. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an outdoor unit of an air conditioner, and more particularly to a configuration of an outer casing.

  For example, as shown in FIG. 7, a conventional outdoor unit of an air conditioner divides the inside of a main body into left and right by a partition plate 57 provided on a base 51, and a machine room 50a is divided into one divided, and the other divided Is provided with a heat exchanger chamber 50b. The machine room 50a is provided with a compressor 58, an accumulator, and the like, and the heat exchanger room 50b is provided with a heat exchanger 59 formed in an L shape, a fan, a fan motor, and a support column 60 that supports the fan. (See Patent Document 1).

  A front panel 52 made of a resin material and having an outlet 52a is erected on the front side of the base 1, and a right side panel 54 and a left side panel 53 are erected on both sides. Is a suction port. The right side panel 54 and the left side panel 53 are made of sheet metal to compensate for the insufficient strength of the front panel 52 made of a resin material. Further, a top plate 56 made of sheet metal is attached to these upper surfaces.

In the outdoor unit of an air conditioner as described above, in order to compensate for a lack of strength when trying to reduce the cost by changing either the right side panel 54 or the left side panel 53 made of sheet metal to a resin material. In addition to providing a reinforcing plate made of a sheet metal material inside the side panel, it is necessary to join the side panel and the reinforcing plate, but when the resin material and the sheet metal material are joined, the resin material is made due to the difference in thermal expansion coefficient. In some cases, the side panel may be distorted.
JP 2006-162094 (page 7, FIG. 2)

  In view of the above problems, the present invention provides an outdoor unit for an air conditioner that can prevent the side panel from being distorted and deformed even if the side panel is changed to a resin material having a reinforcing plate. With the goal.

  In order to solve the above problems, the present invention forms a main body with a base, a panel erected around the base, and a top plate attached to the upper part of the panel, and the main body is compressed in the main body. In the outdoor unit of the air conditioner in which an air conditioner, a heat exchanger, and a blower fan are disposed, at least a part of the panel is made of a resin material, and a metal member is attached to the back surface of the panel made of the resin material. The reinforcing plate is fastened by only one fastening portion, and the reinforcing plate is attached to the base and the top plate.

  Further, the fastening portion is configured to be disposed on the base side or the top plate side from the central portion of the reinforcing plate.

  Further, the suction port provided in the panel made of a resin material is divided in the left-right direction by a vertical beam, and more horizontal beams than the vertical beam are provided in each of the divided suction ports. The horizontal rail provided in one suction port is configured to be disposed between the horizontal rails provided in the other suction port.

  According to the present invention, even when the side panel and the reinforcing plate having different expansion coefficients are expanded and contracted due to changes in the temperature environment, it is possible to prevent the side panel having inferior strength from being distorted or deformed.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail as examples based on the attached drawings.

  FIG. 1 is an external perspective view showing an outdoor unit of an air conditioner according to the present invention, and FIG. 2 is an exploded perspective view thereof. 3 (A) and 3 (B) are a perspective view and a main part perspective view of the right side panel, and FIGS. 4 (A) and 4 (B) are a perspective view and a main part perspective view of the reinforcing plate. is there. FIG. 5 is an explanatory view showing the assembly of the right side panel and the reinforcing plate, and FIG. 6 is a sectional view for explaining the assembly of the base, the top plate, and the right side panel assembly.

  As shown in the external perspective view of FIG. 1, the outdoor unit of an air conditioner according to the present invention has a pair of left and right legs 7 on the lower surface, and is erected on a base 1 made of sheet metal and on the front side of the base 1. The front panel 2 is made of a resin material in which a lattice-shaped air outlet 2a is formed, and is made of a resin material that is erected on the right side of the base 1 and has a plurality of side-surface suction ports 3a and a handle 3b that are formed in a lattice shape The right side panel 3, the left side panel 4 standing on the left side of the base 1 and made of sheet metal, and the top plate 6 made of sheet metal attached to these upper surfaces constitute the main body, The rear surface of the main body is a suction port 5.

  A pair of front and rear screw insertion holes 6a is provided on the side surface of the top panel 6 on the right side panel 3, and a pair of front and rear screw insertion holes 19b and 20b are provided on the upper side of the right side panel 3, and a lower portion is provided on the lower side. Also, screw insertion holes 21a and 21b are respectively provided in a pair of front and rear.

  Next, the overall configuration will be described. As shown in the exploded perspective view of FIG. 2, the base 1 is divided into left and right by a partition plate 8, and a machine room 9 a is provided on one side and a heat exchanger room 9 b is provided on the other side. Yes. The machine room 9a is provided with a compressor 10, an accumulator, and the like, and an electrical component box 15 that houses a control board and to which an electrical component cover 15a is attached is provided above the compressor 10 and the accumulator. The heat exchanger chamber 9b includes a heat exchanger 11 which is composed of a large number of fins arranged in parallel and heat transfer tubes arranged so as to be orthogonal to the fins, and is bent in an L shape. Is provided. In addition, a fan motor mounting base 12 that is supported by the front panel 2 and includes a reinforcing member 12 a that reinforces the top plate 6 and supports a fan motor that drives the blower fan 13 is provided. As described above, the base set is composed of the members described above.

  A fan ring 14 is provided on the back surface of the air outlet 2a of the front panel 2 to protect the blower fan 13 and increase the air blowing efficiency. The front panel 2 and the fan ring 14 constitute a front panel set. ing. The left side panel 4 made of sheet metal is provided with a terminal block and a pipe lead-out portion (not shown), a terminal block cover 4b for leading wiring is attached to the terminal block, and a pipe protection cover 4a is attached to the pipe lead-out portion. It has come to be.

  The right side panel assembly is made of a resin material, and includes a right side panel 3 having a substantially U-shaped cross section and a pair of left and right reinforcing plates 16 screwed to the back surface of the right side panel 3. .

  As the assembly order of the main body, first, the left side panel 4 and the right side panel set are mounted on the base set in which the compressor 10 and the heat exchanger 11 are assembled to the base 1. Subsequently, after the front panel assembly and the top plate 6 are assembled, the terminal block cover 4b and the pipe protection cover 4a are attached to the left side panel 4, respectively.

  Next, the configuration of the right side panel 3 and the reinforcing plate 16 will be described. As shown in FIG. 3A, the back surface of the right side panel 3 made of a resin material is formed in a curved shape on both sides, and the front edge is joined to the edge of the front panel 2. . In addition, a plurality of side surface inlets 3a are formed in the center, and a handle 3b used for carrying the outdoor unit is formed in the upper right part. The side suction port 3a is divided into three in the left-right direction by two vertical rails 3c, and the horizontal rail 3d provided at the one-side suction port is a horizontal rail provided at the central suction port. The crosspieces 3e are alternately provided so that their positions are different in the vertical direction. As a result, the horizontal beam connecting distance of the vertical beam 3c connecting the horizontal beam 3d and the horizontal beam 3e is shortened, and the compressive force or the like acts on the right side panel 3 made of a resin material and can withstand the stress. As described above, the strength of the right side panel 3 is increased.

  Further, a rectangular cutout 18a and a cutout 18b are formed on both sides of the upper edge of the right side panel 3, and a fixing portion 25 through which a screw 40 is inserted is formed at the upper end of a reinforcing plate 16 described later. It arrange | positions in the notch 18a and the notch 18b. A front side mounting portion 19 and a rear side mounting portion 20 for mounting the reinforcing plate 16 are formed on the front side and the rear side, respectively. As shown, it has a locking function and a positioning function when attaching the reinforcing plate 16, and is formed so that the upper locking projection 19a formed in a U-shaped section and the periphery bulges to the back side. A circular screw hole 19b and an upper presser rib 19c that serves as a presser for the reinforcing plate 16 when the reinforcing plate 16 is attached are sequentially provided from above. Further, below the front mounting portion 19, a lower locking projection 19d having the same shape as the upper locking projection 19a, a lower pressing rib 19e as in the upper pressing rib 19c, and a screw head of a screw to be inserted. Screw insertion holes 21a having a larger diameter are sequentially provided from above.

  The periphery of the screw hole 19b bulges, and the upper presser rib 19c is provided below the screw hole 19b, so that when the reinforcing plate 16 is attached to the front attachment portion 19, the back surface of the right side panel 3; It does not come into direct contact with the reinforcing plate 16. Thereby, even if the reinforcing plate 16 expands, contracts and deforms due to a change in ambient temperature, the influence does not reach the right side panel 3.

  Similarly, the rear mounting portion 20 is provided with an upper locking projection 20a, a screw hole 20b, and an upper pressing rib 20c at the upper portion, and a lower locking projection 20d and a lower pressing portion at the lower portion. A rib 20e and a screw insertion hole 21b having a diameter larger than the screw head of the screw to be inserted are sequentially provided from above. A pair of left and right engaging claws 22a and 22b that are engaged with a flange 1a (described later) of the base 1 are provided at the lower center of the right side panel 3.

  Next, the configuration of the reinforcing plate 16 will be described. The reinforcing plate 16 is made of a steel plate having high rigidity, and as shown in FIG. 4A, flanges 26a and 26b are provided by bending both side edges in order to further increase the rigidity. Further, as shown in detail in part A of FIG. 4B, a fixing part 25 having a screw hole 27 formed in the upper part is formed. Below the screw hole 27, a rectangular locking hole 28 corresponding to the shape of the upper locking projection 19a of the right side panel 3 is provided, and a screw 40 inserted through the screw insertion hole 19b is screwed. A mating screw hole 29 is formed. 3 and 4, the screw insertion hole 19 b and the screw hole 29 are provided closer to the top plate 6 side than the center of the reinforcing plate 16, but these are provided from the center of the reinforcing plate 16. May also be provided closer to the base 1 side.

  When a compressive force or the like from above is applied to the reinforcing plate 16 and the reinforcing plate 16 is deformed in a curved shape toward the right side panel 3, the displacement amount of the central portion is maximized. And the right side panel 3 are provided closer to the top plate 6 or closer to the base 1 than the center of the reinforcing plate 16, so that the right side panel due to deformation of the reinforcing plate 16 is provided. 3 is reduced as much as possible.

  In addition, a rectangular locking hole 30 corresponding to the lower locking projection 19d of the right side panel 3 is formed in the lower part of the reinforcing plate 16, and a screw is inserted in two stages above and below it. Holes 31 and 32 are formed. Since the screw insertion holes 31 and 32 are provided in two upper and lower stages, the height of a flange 1a, which will be described later, of the base 1 is different, and the screw position height corresponding to the front attachment portion 19 and the rear attachment portion 20 is different. Even if they are different from each other, the reinforcing plate 16 can cope with them.

  Next, attachment of the reinforcing plate 16 to the right side panel 3 will be described. As shown in FIG. 5, first, an upper locking projection 19 a provided on the front mounting portion 19 of the right side panel 3 and the lower locking projection are provided in the locking hole 28 and the locking hole 30 of the reinforcing plate 16. The protrusions 19d are respectively inserted, and the reinforcing plate 16 is locked to the back surface of the right side panel 3. Since the upper locking projection 19a and the lower locking projection 19d also have a positioning function, the reinforcing plate 16 is positioned at an accurate screwing position on the right side panel 3, and the fixing portion 25 is positioned. Also, it protrudes above the right side panel 3 and is located in the notch 18a at the upper edge. Next, the screw 40 is inserted into the screw insertion hole 19 b of the right side panel 3 and is screwed into the screw hole 29 of the reinforcing plate 16. Thereby, the reinforcement board 16 is fixed to the right side panel 3 only at one place. Similarly, the reinforcing plate 16 is attached to the rear mounting portion 20 by using the upper locking projection 20a and the lower locking projection 20d. As shown in FIG. 5 (B), the locking claws 22a and 22b are hooked to flanges 1a formed on both sides of the base 1, thereby lowering the right side panel 3. Can be fixed.

  Next, attachment of the right side panel 3 to which the reinforcing plate 16 is attached to the base 1 and the top plate 6 will be described. As shown in the sectional view of FIG. 6A, flanges 1a bent upward are formed on both sides of the base 1, and a pair of screw holes 1b are formed in the flange 1a in the front and rear. . When attaching the right side panel assembly to the base 1, first, the locking claws 22a and 22b formed in a pair at the lower back of the right side panel 3 are hooked on the flange 1a of the base 1 as described above. Thus, the right side panel assembly is in a temporarily fixed state standing on the side surface of the base 1 and its movement is restricted. Next, the screw 40 is inserted into the screw insertion holes 21a and 21b in the lower part of the right side panel 3 and into any of the screw insertion holes 31 and 32 of the reinforcing plate 16, and is screwed into the screw hole 1b of the flange 1a. . At this time, the screw insertion holes 21a and 21b at the lower part of the right side panel 3 are formed to have a larger diameter than the screw head of the screw 40, so that only the reinforcing plate 16 is screwed to the base 1. Subsequently, the left side panel 4 and the front panel set are mounted on the base 1. Subsequently, while being guided by the fixing portion 25 above the reinforcing plate 16, the top plate 6 is attached to the upper end portions of the right side panel assembly, the front panel 2, and the left side panel 4 and screwed to each. . As shown in FIG. 6 (A), the right side panel 3 is inserted into the screw insertion hole 6a drilled in the side surface of the top plate 6 and is also drilled in the fixing portion 25 of the reinforcing plate 16. The right side panel assembly is joined to the top plate 6 by being screwed into the screw holes 27.

  Next, the effect will be described. As described above, the right side panel 3 made of a resin material is fixed to the reinforcing plate 1 only at one place by the screw 40 inserted through the screw insertion hole 19b and screwed into the screw hole 29. By screwing the plate 16 to the base 1 and the top plate 6, the right side panel 3 and the reinforcing plate 16 having different expansion coefficients expand and contract in a hot environment such as summer or a cold environment such as winter. Even if the above is repeated, the right side panel 3 can be expanded and contracted without being restricted by being fixed to the reinforcing plate 16 at only one place. Accordingly, it is possible to obtain a cost reduction effect by using the resin material while preventing a distortion occurrence phenomenon or a deformation occurrence phenomenon due to the temperature environment of the right side panel 3 which is made of a resin material and is inferior in strength.

  Further, as shown in FIG. 6 (B), the reinforcing plate 16 is attached via the screw hole 19b and the upper presser rib 19c whose periphery bulges, and thereby the back surface of the right side panel 3; Even when the reinforcing plate 16 is deformed, the right side panel 3 is not distorted or the like even if the reinforcing plate 16 is deformed. Further, even when the outdoor units of a plurality of air conditioners are stacked and conveyed, even if the reinforcing plate 16 is deformed by a load applied to the top plate 6, the influence on the right side panel 3 made of a resin material is prevented as much as possible. Can be done.

It is an external appearance perspective view which shows the outdoor unit of the air conditioner by this invention. It is a disassembled perspective view of the outdoor unit of the air conditioner by this invention. (A) is a perspective view of a right side panel.

(B) is a principal part perspective view of a right side panel.
(A) is a perspective view of a reinforcing plate.

(B) is a principal part perspective view of a reinforcement board.
It is explanatory drawing which shows the assembly | attachment of a right side panel and a reinforcement board. It is explanatory drawing explaining the assembly | attachment of a base, a top plate, and a right side panel. It is a disassembled perspective view which shows the outdoor unit of the conventional air conditioner.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base 1a Flange 1b Screw hole 2 Front panel 2a Air outlet 3 Right side panel 3a Side suction port 3b Handle 3c Vertical beam 3d Horizontal beam 3e Horizontal beam 4 Left side panel 4a Piping protection cover 4b Terminal block cover 5 Suction port 6 Top plate 7 Leg body 8 Partition plate 9a Machine room 9b Heat exchanger room 10 Compressor 11 Heat exchanger 12 Fan motor mounting base 12a Reinforcement part 13 Blower fan 14 Fan ring 15 Electrical component box 15a Electrical component cover 16 Reinforcement plates 18a, 18b Cut Notch 19 Front mounting portion 19a Upper locking projection 19b Screw insertion hole 19c Upper pressing rib 19d Lower locking projection 19e Lower pressing rib 20 Rear mounting portion 20a Upper locking projection 20b Screw insertion hole 20c Upper pressing rib 20d Lower Locking projection 20e Lower presser ribs 21a, 21b Screw insertion holes 22a, 22b Locking claw 25 Fixing portion 26a, 26b Flange 27 Screw hole 28 Locking hole 29 Screw hole 30 Locking hole 31, 32 Screw insertion hole 40 Screw

Claims (3)

A base, a panel erected around the base, and a top plate attached to the top of these panels constitute a main body, and in the main body, a compressor, a heat exchanger, a blower fan, In an air conditioner outdoor unit comprising:
At least a part of the panel is made of a resin material, and a reinforcing plate made of a metal member is fastened to the back surface of the panel made of the resin material by only one fastening portion, and the reinforcing plate is made of the base and the top plate. An air conditioner outdoor unit characterized by being attached to the outside.   2. The outdoor unit for an air conditioner according to claim 1, wherein the fastening portion is disposed on the base side or the top plate side with respect to a central portion of the reinforcing plate.   The suction port provided in the panel made of a resin material is divided in the left-right direction by a vertical rail, and more than the vertical rail is provided in each of the divided suction ports, the one of the divided ones The outdoor unit for an air conditioner according to claim 1, wherein the horizontal rail provided in the suction port is disposed between the horizontal rails provided in the other suction port.

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