JP2005249269A - Electrical apparatus for air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology capable of protecting electrical parts in an electric box against rain water and well radiating heat from the electrical parts by adopting such a configuration that the electric box in which solar panel-related electrical parts are stored is mounted on the outer surface of an outdoor unit since, when the solar panel is added to the type of an air conditioner not having the solar panel, the solar panel-related electrical parts must be assembled in the electrical part of the outdoor unit, its assembly is troublesome, and substrate portions and assembly spaces for assembling the solar panel-related electrical parts must be prepared beforehand. <P>SOLUTION: In this electrical apparatus for the air conditioner, a plurality of heat radiating openings 6 are formed in the vertical wall 5 of the vertical slender rectangular electric box 4 for storing a printed circuit board 2 to which an electrical part 3 for the air conditioner is fitted. A waterproof wall 8 is disposed in the clearance thereof from the inner surface of the vertical wall 5 through a heat radiation air flowing clearance 7 of the electrical parts 3 in the state of covering the heat radiating opening 6. The printed circuit board 2 is vertically supported on the inside of the waterproof wall 8. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an electrical equipment for an air conditioner, and more particularly to a technique in which an electrical box is attached to the outer surface of an outdoor unit of an air conditioner.

  A solar panel is installed above the outdoor unit of the air conditioner, and this solar panel is electrically connected to electrical components such as an electrical component arranged on the upper part of the outdoor unit and an electronic board via a connection cable. There is a form (see, for example, Patent Document 1).

Since electrical components are arranged in the outdoor unit, when adding a solar panel to a model that does not have a solar panel, it is necessary to incorporate the electrical components related to the solar panel into the electrical component in the outdoor unit. In addition, it is necessary to prepare a board portion and an installation space for incorporating electrical components related to the solar panel in advance.
JP 2002-168498 A

  In contrast to the one in Patent Document 1, the solar panel-related electrical components are not incorporated into the electrical unit in the outdoor unit, but a separate electrical box is prepared, and the solar panel-related electrical components are installed in this electrical box. The form which can be incorporated and this electrical equipment box can be attached to the outer surface of an outdoor unit can be considered. In this way, even when a solar panel is added to a model that does not have a solar panel, it is easy to attach the electrical components related to the solar panel, and it is easy to repair and inspect the electrical components related to the solar panel.

  In view of these points, the present invention adopts a configuration in which an electrical box containing electrical components related to solar panels (solar cell panels) is attached to the outer surface of the outdoor unit. It is intended to provide a technique in which measures against rainwater are taken for the stored electrical components and heat dissipation of the electrical components is also good.

  Further, the present invention can be applied to a type in which an electrical box containing electrical components of an air conditioner that does not include a solar panel is attached to the outer surface of the outdoor unit.

  In the first invention, a plurality of heat radiation openings are formed in the left and right vertical walls of a vertically long rectangular electrical box that houses a printed circuit board to which electrical components for an air conditioner are attached. Left and right waterproof walls are disposed so as to cover the plurality of heat radiation openings with a flow interval of the radiated air of the electrical component between them, and the printed circuit board is supported vertically between the left and right waterproof walls. It is characterized by that.

  According to a second aspect of the present invention, a plurality of heat radiation openings are formed in the left and right vertical walls of a vertically long rectangular electrical box that houses a printed circuit board to which an electrical component for an air conditioner is attached. The left and right waterproof walls are arranged so as to cover the plurality of heat dissipation openings with a flow interval of the radiated air of the electrical component between them, and the printed circuit board has left and right end portions between the left and right waterproof walls. The rail member is slidably supported in the vertical direction.

  According to a third aspect of the present invention, a plurality of heat radiation openings are formed in the left and right vertical walls of the vertically long rectangular electrical box that houses the printed circuit board to which the electrical components for the air conditioner are attached. The left and right waterproof walls are disposed so as to cover the plurality of heat radiating openings with a flow interval of the radiated air of the electrical component between them, and the printed circuit board has both left and right end portions vertically extending to the left and right waterproof walls. It is characterized by being supported in the direction.

  According to a fourth aspect of the present invention, a plurality of heat dissipation openings are formed in the left and right vertical walls of a vertically long rectangular electrical box that houses a printed circuit board on which electrical components for an air conditioner are mounted. Left and right waterproof walls are disposed so as to cover the plurality of heat dissipation openings with a circulation interval of the radiated air of the electrical component between them, and the printed circuit board has left and right end portions provided on the left and right waterproof walls. The rail member is supported in the longitudinal direction so as to be slidable.

  According to a fifth aspect of the present invention, a printed circuit board to which an electrical component for an air conditioner is attached is supported by rail members so as to be slidable in the vertical direction along the front wall of the vertically long rectangular electrical box. A plurality of heat radiation openings are formed in the wall, and a space is provided between the left and right vertical walls and the printed circuit board so as to cover the plurality of heat radiation openings with a flow interval of heat radiation of the electrical components. A waterproof wall is disposed, and the electrical box is closed with a detachable lid on the rear surface and the lower surface, and a lead-out portion of the connection wire to the electrical component of the printed circuit board is provided on the lower surface of the electrical box, The electrical box is detachably attached so that the front wall is along the back of the outdoor unit of the air conditioner.

  According to a sixth invention, in the first to fifth inventions, a solar panel (solar cell panel) is installed separately from the outdoor unit, and the electrical component for the air conditioner is electrically connected to the solar panel. It is an electrical component including a converter.

  A seventh invention is characterized in that, in the fourth invention, an insulating sheet for electrically insulating the electrical part of the printed circuit board and the electrical box is attached to the waterproof wall by the rail member.

  According to an eighth invention, in the first to sixth inventions, an insulating sheet that electrically insulates the inner surface of the right and left waterproof walls and the electrical component of the printed circuit board is attached to the waterproof wall by the rail member, An insulating sheet for electrically insulating the upper wall surface of the electrical box and the electrical part of the printed circuit board is attached, and a mounting member for the latter insulating sheet supports the upper end of the printed circuit board.

  In the first invention, since the electrical box has a vertically long rectangular shape that accommodates the printed circuit board to which the air conditioner electrical components are attached in the vertical direction, the heat radiation openings can be arranged on the vertical wall, and measures against rainwater are taken. It becomes easy to do. In addition, the heat generated from the electrical components is released from the heat dissipation openings formed in the left and right walls of the electrical box through the heat radiation space between the left and right walls of the electrical box and the waterproof wall. On the other hand, even if rainwater that falls on the electrical box enters through the opening for heat dissipation, the rainwater that has entered it is prevented from hitting the waterproof wall and reaching the electrical components. Since it flows down the heat radiating space and is discharged out of the electrical box from the lower drainage portion, the water resistance effect on the electrical components can be obtained.

  In addition to the effects of the first invention, the second invention makes it easy to attach the printed circuit board to the rail member so that the printed circuit board is separated from the wall surface of the electrical box by a predetermined dimension. Therefore, it is suitable for the case where the printed circuit board is stored in the vertical direction in a substantially parallel state along the wall surface having a large area among the wall surfaces of the electrical equipment box to reduce the depth of the electrical equipment box. In addition, it is easy to assemble, and it is easy to remove the printed circuit board when repairing and inspecting the electrical components.

  In the third invention, in addition to the effect of the first invention, the waterproof wall serves as a support portion of the electrical equipment box, so that it is not necessary to provide a special support member for the electrical equipment box.

  In the fourth aspect of the invention, in addition to the effect of the first aspect, the waterproof wall serves as a support portion for the rail member, so that it is not necessary to provide a special support member for the rail member. Then, by sliding the printed circuit board onto the rail member, it becomes easy to mount the printed circuit board at a predetermined distance from the wall surface of the electrical equipment box, and stable support of the printed circuit board is obtained. It is suitable for the case where the printed circuit board is stored in the vertical direction so as to reduce the depth of the electrical box. In addition, it is easy to assemble, and it is easy to remove the printed circuit board when repairing and inspecting the electrical components.

  In addition to the effects of the second invention, the fifth invention facilitates assembly of the printed circuit board in the electrical box and repair and inspection of the electrical parts by attaching and detaching the lid. And since the depth can be reduced as an electrical box to be attached along the back surface of the outdoor unit, it is suitable for installing the outdoor unit close to a wall surface of a building or the like, and suitable for installing the outdoor unit in a narrow place. In addition, when installing an outdoor unit close to a wall such as a building, the depth of the electrical box helps maintain the distance from the wall of the building, and air is sucked into the internal heat exchanger from the back of the outdoor unit. It will also help to secure the suction passage.

  In the sixth aspect of the invention, in addition to the effects of any of the first to fifth aspects, when a solar panel (solar cell panel) is installed separately from the outdoor unit and the power of the solar panel is used, By storing electrical components including a solar panel converter in the box, a solar panel electrical box can be installed without replacing the outdoor unit or printed circuit board stored in the indoor unit. It is effective to be able to use environmentally friendly power.

  In the seventh invention, in addition to the effects of the fourth invention, it is not necessary to separately prepare a mounting member for the waterproof sheet, the mounting work is simplified, and the waterproof sheet is supported by a long rail member. This stabilizes the support.

  In the eighth invention, in addition to the effects of any one of the first to sixth inventions, the attachment of the insulating sheet on the upper side of the printed circuit board and the support on the upper side of the printed circuit board can be achieved by a common member. Since the mounting of the insulation sheets on both the left and right sides and the support on both the left and right sides of the printed circuit board can be achieved by the rail member, the insulation on the upper side of the printed circuit board and the left and right sides is improved and the stable support of the printed circuit board in the electrical box is achieved, The support structure for the printed circuit board is also simplified.

  In the electrical equipment for an air conditioner of the present invention, a plurality of heat radiation openings are formed in a vertical wall of a vertically long rectangular electrical box that houses a printed circuit board to which electrical components for the air conditioner are attached, and the inner surface of the vertical wall A waterproof wall is disposed in a state of covering the plurality of heat radiation openings with a circulation interval of the radiated air of the electrical component between the printed circuit board and the printed circuit board is supported in the vertical direction inside the waterproof wall Embodiments of the present invention are described below.

  Next, an embodiment of the present invention will be described. FIG. 1 is a perspective view showing the inside of the electrical box of the present invention, FIG. 2 is an exploded perspective view of the inner side portion of the right side wall of the electrical box of the present invention, and FIG. 4 is an internal view of a cross section of the electrical box according to the present invention, FIG. 5 is an explanatory view of a mounting portion of an insulating sheet in the upper part of the electrical box of the present invention, FIG. 6 is an inner side view of a rail member in the electrical box according to the present invention, and FIG. FIG. 8 is a cross-sectional view of a portion where the rail member of FIG. 7 is attached, and FIG. 9 shows a wiring state in a state where the lid of the electric box of the present invention is removed. FIG. 10 is an exploded perspective view of a state in which the electrical box of the present invention is attached to the back of the outdoor unit of the air conditioner, and FIG. 11 is an explanatory view of a drawing portion of a connecting wire to an electrical component in the electrical box of the present invention. 12 is a solar panel It is a configuration diagram of a state in which installed above the outdoor unit of the air conditioner separate type air conditioner according to the invention. Example 1 will be described below.

  As shown in FIG. 12, the air conditioner 100 according to the first embodiment includes an outdoor unit 101 and an indoor unit 102, and the outdoor unit 101 and the indoor unit 102 are connected by a piping unit 103 that bundles a refrigerant pipe and an electric wiring. Yes. Hereinafter, the air conditioner 100 which concerns on Example 1 demonstrates the form which installed the solar panel (solar cell panel) 104 above the outdoor unit 101. FIG. The solar panel 104 has arc-shaped support legs 105 attached to the left and right portions on the back side. A mounting plate 106 is attached to upper portions of the left and right sides of the outdoor unit 101 so as to protrude upward of the outdoor unit 101 by screw members 64, and the support legs 105 are attached to the left and right mounting plates 106. A solar panel 104 is installed above the outdoor unit 101.

  The installation angle of the solar panel 104 is configured to be adjustable so that the light receiving surface on the upper surface of the solar panel 104 receives sunlight efficiently. Specifically, the front part of the support leg 105 is pivotally supported by a shaft support part 107 so as to be rotatable with respect to the mounting plate 106, and the rear part of the support leg 105 has an arcuate length around the shaft support part 107. A hole 108 is formed, and a shaft 109 passing through the arc-shaped elongated hole 108 is attached to the attachment plate 106. For this reason, the solar panel 104 is rotated at a preferred angle around the shaft support portion 107, and the nut 110 that is screwed into the screw portion of the shaft 109 is tightened, so that the solar panel 104 is fixed at an inclined position. It is a possible configuration.

  The indoor unit 102 stores a heat exchanger that evaporates the refrigerant during cooling operation and exhibits a cooling function, and its blower fan, and the outdoor unit 101 exhibits a function of condensing the refrigerant during cooling operation with the refrigerant compressor. A heat exchanger and a heat dissipation fan related to the heat exchanger are accommodated. In the indoor unit 102 and the outdoor unit 101, printed circuit boards to which electrical components related to the respective controls are attached are mounted in a housed state, but the electrical equipment of the electrical equipment 1 for an air conditioner targeted by the present invention is provided. The box 4 is configured to be attached in the vertical direction along the outer surface of the outdoor unit 101, and in the following embodiment, the electrical components constituting the electrical circuit related to the solar panel 104 are accommodated. In the present invention, in order to facilitate understanding, the side where the back panel 112 of the outdoor unit 101 to be described later is provided is the rear side of the outdoor unit 101, and the air discharge fan outlet is provided on the opposite side. The front side of the outdoor unit 101 is referred to as the front side of the outdoor unit 101, and the electrical box 4 and the mounting plate 33 described later are also viewed from the front side of the outdoor unit 101, the front side is the front side, the rear side is the rear side, the right side The side located on the left side is called the right side, and the side located on the left side is called the left side.

  The electrical equipment 1 for an air conditioner according to the present invention includes a plurality of heat radiation openings 6 on the left and right vertical walls 5 of a vertically long rectangular electrical box 4 that houses a printed circuit board 2 to which an air conditioner electrical component 3 is attached. The left and right waterproof walls 8 are arranged so as to cover the plurality of heat radiation openings 6 with the circulation space 7 of the radiated air of the electrical component 3 between the inner surfaces of the left and right vertical walls 5. Reference numeral 2 denotes a configuration in which both left and right end portions are supported in a longitudinal direction so as to be slidable on rail members 9 provided on the left and right waterproof walls 8.

  This will be described in detail. The electrical box 4 is a vertically long rectangular casing having a horizontal width that is greater than the depth in the front-rear direction, and is a steel plate having a front wall 11, an upper wall 12, and a left and right wall 5. The rear surface and lower surface of the metal main body 4A are open, and the rear surface and lower surface are closed by a metal L-shaped lid 10 such as a detachable steel plate. A flange 13 hanging downward is formed at the rear end of the upper wall 12 of the main body 4A, and an inward flange 14 is formed at the rear ends of the left and right walls 5 of the main body 4A. The lid 10 is fixed to the flange 14 with a screw 15 with the upper end edge of the vertical wall 10A embedded in the flange 13, so that the horizontal wall 10B of the lid 10 is fixed to the lower surface of the main body 4A. Is attached to the main body 4A. By attaching the lid 10 to the main body 4A, the electrical box 4 has a hollow housing structure in which the front and rear, the top and bottom, and the left and right are closed. A sealing material is interposed in a contact portion (a portion of the flange 13 and the flange 14) between the lid body 10 and the main body 4A, thereby improving a waterproof effect.

  The left and right vertical walls 5 of the main body 4 </ b> A are formed with a plurality of heat radiation openings 6 for the electrical component 3 on the printed circuit board 2 accommodated in the electrical box 4. The illustrated heat radiation opening 6 is formed by a large number of circular holes, but is not limited thereto, and has a plurality of slits extending in the lateral direction and a ridge extending diagonally downward and outward at the upper end. The structure which formed the slit may be sufficient.

  The left and right waterproof walls 8 are arranged substantially parallel to the inner surfaces of the left and right vertical walls 5 so as to form a heat radiation space 7 that is substantially uniform with the inner surfaces of the left and right vertical walls 5. Specifically, the right and left waterproof walls 8 are in a state of covering the plurality of heat radiation openings 6 with the circulation space 7 (heat radiation space 7) of the radiated air of the electrical component 3 between the inner surfaces of the left and right vertical walls 5. Is arranged. The waterproof wall 8 has a front end flange portion 8B fixed to the front wall 11 of the main body 4A by welding, and an upper and lower end edge portion and a rear end edge portion are integrally formed with a flange 8A extending obliquely outward. ing.

  As a result, even if rainwater that has vigorously entered from the heat radiating opening 6 collides with the waterproof wall 8 and becomes splashed water, the scattered water collides with the flange 8A. It is possible to prevent the electric component 3 on the printed board 2 and the wiring portion from jumping out from the heat radiation space 7).

  Further, the flange 8A of the waterproof wall 8 has a gap 7A between the wall of the main body 4A. That is, the air circulation interval 7A is formed between the left and right vertical walls 5 so that the radiated air of the electrical component 3 flows to the circulation interval 7 (radiation space 7). As a result, the outside air entering from the heat radiation opening 6 enters the electrical box 4 from the circulation interval 7 (heat radiation space 7) through the circulation interval 7A, cools the electrical component 3, and the radiated air generated thereby flows through the circulation interval. From 7A, it passes through the flow interval 7 (heat radiation space 7) and is discharged from the heat radiation opening 6 to the outside. Due to such air circulation, heat dissipation of the electrical component 3 is favorably performed.

  The printed circuit board 2 accommodated in the electrical equipment box 4 may be provided with electrical equipment related to operation control of the air conditioner 100. In this embodiment, DC (direct current) for boosting the generated power of the solar panel 104 is used. -An electric circuit such as a DC (direct current) converter or a power controller or an electrical component 3 related thereto is attached. The printed circuit board 2 is electrically connected to the connection terminal portion 17A of the electric wire 16 electrically connected to the electrical circuit on the printed circuit board housed in the indoor unit 102 and the electrical circuit on the printed circuit board housed in the outdoor unit 101. A connection terminal portion 17B of the electric wire (lead wire) 16 and a connection terminal portion 17C of the electric wire 16 connected to the terminal of the solar panel 104 are provided. The two connection terminal portions 17C are provided for connecting the electric wires 16 of the solar panels 104 when two sets of the solar panels 104 are installed as will be described later.

  The printed circuit board 2 accommodated in the electrical box 4 has a structure in which both left and right ends thereof are slidably supported by a synthetic resin rail member 9 attached to the left and right waterproof walls 8. The rail member 9 is a synthetic resin molded body such as nylon, and the side that supports the printed circuit board 2 forms a groove 22 in which the end of the printed circuit board 2 is inserted in the length direction of the rail member 9. The groove 22 has a width t2 that is slightly larger than the thickness t1 of the left and right ends of the printed circuit board 2 so that the left and right ends of the printed circuit board 2 are loosely inserted. The elastic holding portion 23 is integrally formed to protrude and bend in a curved manner toward the sides facing each other so as to press the surface.

  In the electrical box 4, in order to ensure electrical insulation between the electrical component 3 on the printed circuit board 2 and its wiring part and the electrical box 4, insulating sheets 26 are provided on both the left and right sides and the upper part of the printed circuit board 2, It is provided between the electrical box 4. Specifically, as will be described below, the left and right end sides of the printed circuit board 2 sandwich the insulating sheet 26 between the rail member 9 and the waterproof wall 8 by attaching the rail member 9 to the waterproof wall 8. Yes. As a result, the insulating sheet 26 is disposed along the inner surface of the waterproof wall 8, and electrical insulation between the electrical component 3 on the printed circuit board 2 and its wiring portion and the waterproof wall 8 which is a part of the electrical box 4 is performed. Is secured. And the insulating sheet 26 is attached by the holding member 28 in the upper end part side of the printed circuit board 2, and electrical insulation between the electrical equipment part 3 on the printed circuit board 2, its wiring part, and the wall of the electrical equipment box 4 is ensured. Is done.

  More specifically, the rail member 9 is integrally formed with an elastic mounting portion 25 that is attached by press-fitting to a mounting square hole 24 provided in the left and right waterproof walls 8 on the opposite side of the groove 22. When the elastic mounting portion 25 is pressed into the square hole 24 through the square hole of the insulating sheet 26, the pair of left and right elastic pieces 25A of the elastic mounting portion 25 pass through the square hole 24 while shrinking, and the square hole 24 passes through the square hole 24. The elastic piece 25A returns and spreads in the penetrated state, so that it is locked to the edge of the square hole 24, and the rail member 9 is supported by the left and right waterproof walls 8 with the insulating sheet 26 sandwiched therebetween.

  Further, the upper end portion side of the printed circuit board 2 is provided with an attachment side 27 attached to the upper part in the electrical equipment box 4 by welding, and the holding member 28 having the same configuration as the configuration in which the rail member 9 is attached to the waterproof wall 8, An insulating sheet 26 is sandwiched between the holding member 28 and the attachment side 27. That is, the holding member 28 is integrally formed with an elastic attachment portion 30 that is attached by press-fitting into a square hole 29 formed in the attachment side 27, and the elastic attachment portion 30 is penetrated through the square hole of the insulating sheet 26. By press-fitting into the square hole 29, the pair of left and right elastic pieces 30 </ b> A of the elastic attachment portion 30 pass through the square hole 29 while contracting, and the elastic piece 30 </ b> A returns and spreads through the square hole 29, thereby causing the edge of the square hole 29. The holding member 28 is supported by the attachment side 27 in a state in which the holding member 28 is sandwiched and the insulating sheet 26 is sandwiched.

  In the holding member 28, a downward groove 31 extending in the left-right direction is formed on the opposite side of the elastic piece 30 </ b> A, and an elastic holding portion 32 is integrally formed on the opposing wall of the groove 31. The holding member 28 supports the upper end portion of the printed board 2 by the groove 31, and presses and holds the surface of the printed board 2 by the elastic holding portion 32.

  The printed circuit board 2 is inserted into the groove 22 from one end of the rail member 9 supported by the left and right waterproof walls 8 and pushed along the rail member 9 while expanding the elastic holding portion 23, and the upper end is a groove of the holding member 28. Enter 31 and hold in place. This holding is achieved by the elastic holding part 23. For this reason, the printed board 2 is supported by the elastic holding part 23 of the rail member 9 at the left and right edges, and held by the elastic holding part 32 at the upper edge, so that when the printed board 2 is inserted into the rail member 9 Even if there is a shake, it can be inserted smoothly, and the printed board 2 can be easily attached to and removed from the electrical box 4.

  The connection of the electric wires 16 to the connection terminal portions 17A, 17B, and 17C of the printed circuit board 2 is performed by passing the electric wires 16 through the cylindrical rubber material 20 of the drawer portion 18 of the lid body 10 before attaching the lid body 10 to the main body 4A. In this state, the electric wire 16 is connected to the connection terminal portions 17A, 17B, and 17C of the printed circuit board 2 held at a predetermined position of the rail member 9. In addition, the method of connecting the electric wire 16 to the connecting terminal portions 17A, 17B, and 17C of the printed circuit board 2 in another order may be used.

  A lead-out portion 18 of the electric wire 16 is provided on the lower surface of the electrical box 4, that is, near the side portion of the lateral wall (lower wall) 10 </ b> B of the lid body 10, and the through-hole 19 of the lateral wall 10 </ b> B of the lid body 10 is provided in the drawer portion 18. A cylindrical rubber material 20 fitted into and attached to is provided. The electric wire 16 is wired through the cylindrical rubber material 20, and the cylindrical rubber material 20 is tightly attached to the electric wire 16 in a state where the cylindrical rubber material 20 bites into a gap between the electric wires 16 by binding the cylindrical rubber material 20 with a binding band 21 from the outside. In addition, the intrusion of water from the lead-out portion 18 can be prevented, and when the wire 16 is pulled, the tubular rubber material 20 resists the pulling, so that the connection terminal portions 17A, 17B, and 17C can be prevented from coming off. It can be prevented.

  As described above, the printed circuit board 2 to which each electrical component is attached is supported by the elastic holding portion 23 of the rail member 9 at the left and right end edges, and the electric wires 16 are pulled out by the upper end edge being held by the elastic holding portion 32. This is a state drawn from 18. In this state, the lid 10 is fastened with the screw 15 of the main body 4A, and the length of each wire 16 from the lead-out portion 18 is adjusted. The electric wire 16 is held. Holding bands 46 and 47 of the electric wire 16 to be described later may be attached with screws 45 in this state.

  The electrical box 4 is attached to the outdoor unit 101 in a configuration that is detachably attached to a mounting plate 33 that is attached to the outer surface of the outdoor unit 101. That is, the metal mounting plate 33 includes a fixed side 35 and a support side 36 connected to the fixed side 35 at a substantially right angle, and a fixed side by a screw 34 on one side of the outdoor unit 101 (the right side of the outdoor unit 101 in the figure). 35 is attached. In addition, the support side 36 is formed with a downward hook-like locking portion on the upper and lower sides facing the outdoor unit 101, and the upper locking portions are formed on the back panel 112 of the outdoor unit 101. The lower locking portion is hooked on the horizontal beam 114B between the plurality of ventilation holes 113B formed in the back panel 112 and held on the back panel 112. Thus, the attachment plate 33 is attached to one side corner of the outdoor unit 101. The ventilation holes 113 </ b> A and 113 </ b> B are intake ports for heat radiation of the refrigerant compressor and the heat exchanger housed in the outdoor unit 101.

  An upper wall 37 is formed at the upper end of the support side 36 of the mounting plate 33, and a flange 38 bent downward substantially parallel to the support side 36 is formed at the rear end of the upper wall 37. A lower wall 39 is formed substantially in parallel with 37. A groove 40 that is depressed downward is formed at a connection portion between the support side 36 and the lower wall 39. The distance between the upper wall 37 and the lower wall 39 is slightly larger than the vertical dimension of the electrical box 4, and the distance between the support side 36 and the flange 38 is slightly larger than the thickness in the front-rear direction of the electrical box 4.

  The electrical box 4 has a protrusion 41 protruding downward at the lower end of the front wall 11 thereof. In this configuration, the electrical box 4 can be inserted between the upper wall 37 and the lower wall 39 from the side of the outdoor unit 101 (the right side of the outdoor unit 101 in the figure), and the protrusion 41 slides in the groove 40. The upper part of the electrical box 4 is inserted along the lower surface of the upper wall 37 at a distance between the support side 36 and the flange 38. A fixed side 43 is formed at the lower end of the mounting plate 33 on the insertion entrance side of the electrical box 4, and a fixed side 44 is formed at the lower end on the rear end side of the electrical box 4.

  For this reason, the position at which the fixed side 44 abuts on the fixed side 43 of the mounting plate 33 by the insertion of the electrical box 4 is a predetermined position, and the electrical box 4 is moved upward by the screw 42 penetrating the upper wall 37 at this position. The fixed side 44 is fixed to the fixed side 43 by a screw 45 passing through the fixed side 43 and the fixed side 44. The electrical box 4 is fixed to the mounting plate 33 by such fixing. Removal of the electrical box 4 from the mounting plate 33 can be achieved by removing the screws 42 and 45.

  The holding band 46 of the electric wire 16 connecting the electrical box 4 and the solar panel 104 can be simultaneously fixed to the fixed side 44 with the screw 45. In order to increase the generated power, another set of solar panels 104 can be installed near the outdoor unit 101 to form two sets. In order to cope with this, the printed circuit board 2 is associated with this. An electric circuit and electric wire connection terminal 17C are provided. The electric wire holding band 47 for protecting the electric wire can be simultaneously fixed to the fixed side 44 with the screw 45.

  In the above embodiment, the printed circuit board including the electrical parts related to the electrical circuit such as the DC-DC converter that boosts the generated power of the solar panel is housed in the electrical box, but for the operation control of the air conditioner. The present invention can also be applied to a form in which a printed circuit board to which such an electrical component is attached is stored in an electrical box. For this reason, it is not limited to the said form, It can apply to the form of various air conditioners, unless it deviates from the technical scope of this invention.

It is a perspective view which shows the inside of the electrical equipment box of this invention. (Example 1) It is a disassembled perspective view of the right side wall inner part of the electrical equipment box of this invention. (Example 1) It is sectional drawing of the right side wall inner side part of this invention electrical equipment box. (Example 1) It is an internal view by the cross section of this invention electrical equipment box. (Example 1) It is explanatory drawing of the attachment part of the insulating sheet of the upper part in this invention electrical equipment box. (Example 1) It is an inner side view of the rail member in this invention electrical equipment box. (Example 1) It is explanatory drawing of the state which attaches a rail member in this invention electrical equipment box. (Example 1) It is sectional drawing of the part which attached the rail member of FIG. (Example 1) It is a disassembled perspective view which shows the wiring state of the state which removed the cover body of this invention electrical equipment box. (Example 1) It is a disassembled perspective view of the state which attaches the electrical equipment box of this invention to the outdoor unit back surface of an air conditioner. (Example 1) It is explanatory drawing of the lead-out part of the connection electric wire to the electrical component in the electrical box of this invention. (Example 1) It is a block diagram of the separation-type air conditioner of the state which installed the solar panel above the outdoor unit of the air conditioner which concerns on this invention. (Example 1)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Electrical equipment for air conditioners 2 ... Printed circuit board 3 ... Electrical equipment parts 4 ... Electrical equipment box 4A ... Electric equipment box body 5 ... Left and right vertical walls of the electrical equipment box 6 ... Heat dissipation Opening 7 ... Heat radiation space 8 ... Waterproof wall 8A ・ ・ Flange 9 ・ ・ ・ Rail member 10 ・ ・ Cover body 16 ・ ・ Electric wire (lead wire)
22 .. Groove 23 .. Elastic holding part 24 .. Square hole 25 .. Elastic mounting part 26 .. Insulating sheet 28 .. Holding member 30 .. Elastic mounting part 31 .. Groove 32 .. Elastic holding part 33. Mounting plate 35 .. Fixed side 36 .. Support side 100 .. Air conditioner 101 .. Outdoor unit 102 .. Indoor unit 103 .. Piping section 104 .. Solar panel

Claims (8)

  A plurality of heat radiation openings are formed in the left and right vertical walls of a vertically long rectangular electrical box for storing a printed circuit board to which the electrical components for the air conditioner are attached, and the electrical parts are formed between inner surfaces of the left and right vertical walls. Left and right waterproof walls are disposed in a state of covering the plurality of heat radiation openings with a circulation interval of the heat radiating air, and the printed circuit board is supported vertically between the left and right waterproof walls. Electrical equipment for air conditioners.   A plurality of heat radiation openings are formed in the left and right vertical walls of a vertically long rectangular electrical box for storing a printed circuit board to which the electrical components for the air conditioner are attached, and the electrical parts are formed between inner surfaces of the left and right vertical walls. Left and right waterproof walls are arranged so as to cover the plurality of heat radiation openings with a circulation interval of the heat radiation air, and both left and right ends of the printed circuit board are slidable on the rail member between the left and right waterproof walls. An electrical equipment for an air conditioner characterized by being supported in a vertical direction.   A plurality of heat radiation openings are formed in the left and right vertical walls of a vertically long rectangular electrical box for storing a printed circuit board to which the electrical components for the air conditioner are attached, and the electrical parts are formed between inner surfaces of the left and right vertical walls. Left and right waterproof walls are arranged in a state of covering the plurality of heat radiation openings with a circulation interval of the heat radiating air, and both left and right ends of the printed circuit board are vertically supported by the left and right waterproof walls. An electrical equipment for an air conditioner.   A plurality of heat radiation openings are formed in the left and right vertical walls of a vertically long rectangular electrical box for storing a printed circuit board to which the electrical components for the air conditioner are attached, and the electrical parts are formed between inner surfaces of the left and right vertical walls. Left and right waterproof walls are arranged in a state of covering the plurality of heat radiation openings with a circulation interval of the heat radiation air, and the printed circuit board is slidable on rail members provided on the left and right waterproof walls at both left and right ends. The electrical equipment for an air conditioner is characterized by being supported in the vertical direction.   A printed circuit board to which electrical components for the air conditioner are attached is supported by rail members so as to be slidable vertically along the front wall of the vertically long rectangular electrical box, and a plurality of heat dissipation is provided on the left and right vertical walls of the electrical box. The left and right waterproof walls are arranged between the left and right vertical walls and the printed circuit board so as to cover the plurality of heat radiation openings with a circulation interval of the radiated air of the electrical components. The electrical box is closed with a detachable lid on the rear surface and lower surface, and a lead-out portion for connecting wires to the electrical components on the printed circuit board is provided on the lower surface of the electrical box, and the electrical box is connected to the front wall. Is an electrical equipment for an air conditioner, which is detachably attached in a state along the back of the outdoor unit of the air conditioner.   The solar panel is installed separately from the outdoor unit, and the electrical component for the air conditioner is an electrical component including a converter electrically connected to the solar panel. An electrical equipment for an air conditioner according to claim 1.   5. The electrical equipment for an air conditioner according to claim 4, wherein an insulating sheet that electrically insulates the electrical part of the printed circuit board from the electrical box is attached to the waterproof wall by the rail member.   An insulating sheet that electrically insulates the inner side surfaces of the left and right waterproof walls and the electrical components of the printed circuit board is attached to the waterproof wall by the rail member, and the upper wall surface of the electrical box and the electrical components of the printed circuit board The electrical equipment for an air conditioner according to any one of claims 1 to 6, wherein an insulating sheet for electrical insulation is attached, and a mounting member for the latter insulating sheet supports the upper end of the printed circuit board. .

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