JP2008261508A - Electric component box of air conditioner, and air conditioner comprising the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To miniaturize an outdoor machine by miniaturizing an electric component box in an air conditioner. <P>SOLUTION: This electric component box comprises a first control board on which heating components are mounted, a first board holder for holding the first control board, a second control board on which components excluding the heating components are mounted, and disposed roughly horizontally to the first control board, a second board holder for holding the second control board, and a radiation fin mounted on the first control board and projecting to an air distribution fan side of a partitioning plate for partitioning a compressor and the air distribution fan. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an air conditioner, and more specifically to an electrical component box of an air conditioner.

  Conventionally, an electrical component box having a control board on which a plurality of electrical components for controlling an air conditioner is mounted has been used (see, for example, Patent Document 1).

  FIG. 3 is an exploded perspective view showing an example of the structure of an electrical component box of a conventional air conditioner.

  As shown in FIG. 3, the electrical component box 21 of the air conditioner is horizontally attached so as to cover the substrate holders 22 and 23 to which electric parts such as an inverter are attached and the upper surface of the substrate holder 22. A printed circuit board 27 having heat-dissipating fins 26 to which heat-generating electronic components 24 and 25 that are exposed on one side surface and cooled by a blower are attached, and is mounted vertically so as to cover the back surface of the substrate holder 23, and And a printed circuit board 30 having heat dissipating fins 29 to which heat-generating electronic components 28 that are exposed and cooled by a blower are attached.

In addition, a reactor 31 is disposed inside the substrate holders 22 and 23, and the back and top surfaces of the reactor 31 are covered with printed circuit boards 27 and 30.
Japanese Patent Laid-Open No. 11-63574

  However, in the above-described conventional air conditioner electrical component box, since the heat generating components are divided into the first printed circuit board and the second printed circuit board, it is necessary to use two radiating fins. Are arranged as a single unit and the first printed circuit board and the second printed circuit board are disposed so as to cover the periphery of the reactor. Therefore, it is sometimes difficult to reduce the size of the electrical component box as a whole.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide an electrical component box that can be reduced in size.

  In order to solve the above problems, the electrical component box of the air conditioner of the present invention is installed on the upper part of the partition plate that holds the first control board on which the heat generating components are mounted and partitions the compressor and the blower fan. A first substrate holder and a second control board on which a component that is not a heat-generating component is mounted. The first substrate holder is installed substantially horizontally with respect to the first substrate holder on the compressor side of the partition plate. 2 substrate holders, and heat radiating fins attached to the first control board and projecting to the blower fan side of the partition plate.

  ADVANTAGE OF THE INVENTION According to this invention, size reduction of the electrical equipment box of an air conditioner can be achieved, and by extension, size reduction of an air conditioner can be achieved.

1st invention hold | maintains the 1st control board by which a heat-emitting component is mounted, the 1st board | substrate holder installed in the upper part of the partition plate which partitions off a compressor and a ventilation fan, and the component which is not heat-generating components are mounted. A second control board that holds the second control board and is installed on the compressor side of the partition plate substantially horizontally with respect to the first board holder, and is attached to the first control board And a heat radiating fin protruding toward the blower fan side of the partition plate. As a result, the electrical component box can be downsized.

  According to a second invention, in the first invention, the second substrate holder includes a slot for inserting the second control substrate. As a result, the electrical component box can be downsized and the second control board can be easily attached.

  According to a third invention, in the first or second invention, a reactor is mounted on the second control board. As a result, the electrical component box can be miniaturized.

  4th invention is an air conditioner provided with the electrical equipment box of any one of 1st to 3rd invention. As a result, the air conditioner can be miniaturized.

  Embodiments of the present invention will be described below.

(Embodiment 1)
FIG. 1 is an exploded perspective view showing a structure of an electrical component box of an air conditioner according to Embodiment 1 of the present invention.

  As shown in FIG. 1, an electrical component box 1 is made of a resin as a material and is integrally molded so as to be nearly parallel to each other, and a substrate holder 2 that is a first substrate holder and a substrate holder 3 that is a second substrate holder. It consists of.

  A control board 4 that is a first control board is mounted with a plurality of electrical components including a heat generating component 5 and attached to the board holder 2. Radiation fins 6 are attached to the control board 4 to release heat from the heat generating component 5.

  A control board 7, which is a second control board, includes a reactor 9 and is mounted with a plurality of electrical components that do not include a heat generating component, and is inserted into a slot 8 provided in the substrate holder 3. For this reason, the control board 4 and the control board 7 are installed so as to be substantially horizontal to each other.

  In addition, tall lead parts such as capacitors and reactors are mounted on the control board 4 and the control board 7.

  Here, the electrical component box 1 is attached to the electrical component box 1 so that the component surface on which the lead component of the control board 4 is arranged and the component surface on which the lead component of the control board 7 is arranged face each other. Therefore, the electrical components are arranged so that the components mounted on the two control boards do not contact each other.

  For example, when a single-sided board is used for the control board 4, if a surface mounting component such as the microcomputer 17 is mounted on the control board 4, a space is created on the opposite surface (lead part surface) on which the surface mounting part is mounted. By arranging high-profile components such as the reactor 9 mounted on the control board 7 in the generated space, the control board can be efficiently stored in the electrical component box 1.

  FIG. 2 is a front view of the outdoor unit 10 of the air conditioner having the electrical component box of the present embodiment. As shown in FIG. 2, the electrical component box 1 is housed in an upper portion of a partition plate 13 that partitions the compressor 11 and the blower fan 12 inside the outdoor unit 10.

  The control board 7 is disposed in a space on the compressor side of the partition plate 13. The radiating fin 6 protrudes from the opening 15 provided in the substrate holder 2 to the space on the side of the blower fan 12 of the partition plate 13. For this reason, when the blower fan 12 is driven by the fan motor 14, heat radiation from the radiation fins 6 is promoted.

  The control board 4, the control board 7, the compressor 8, and the fan motor 14 are connected by a harness or the like.

  In the electrical component box 1 configured as described above, by arranging the control board 4 and the control board 7 vertically, the reactor 9 can be mounted on the control board 4 or the control board 7, and the electrical component box The whole can be downsized.

  In addition, since the electrical component box 1 can be efficiently stored in a space formed by the compressor 11, the partition plate 13, the back surface (not shown) of the outdoor unit 10, the side surface 16 and the like, the outdoor unit 10 can be downsized. Is possible.

  Further, since the control board 7 is attached by being inserted into the slot 8, the attachment of the control board 7 is facilitated.

  As described above, the electrical component box according to the present invention has an effect that the electrical component box can be miniaturized, and is useful as an electrical component box of an air conditioner.

The exploded perspective view which shows the structure of the electrical equipment box of the air conditioner by Embodiment 1 of this invention The front view of an outdoor unit provided with the electrical component box by Embodiment 1 of this invention The exploded perspective view which shows the structure of the electrical component box in the conventional air conditioner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electrical component box 2 Substrate holder 3 Substrate holder 4 Control board 5 Heat-generating component 6 Radiation fin 7 Control board 8 Slot 9 Reactor 10 Outdoor unit 11 Compressor 12 Blower fan 13 Partition plate 14 Fan motor 15 Opening 16 Side surface of outdoor unit 17 Microcomputer

Claims (4)

A first substrate holder that holds a first control board on which a heat generating component is mounted and that is installed on the upper part of a partition plate that partitions the compressor and the blower fan, and a second control on which a component that is not a heat generating component is mounted A second substrate holder that holds the substrate and is installed substantially horizontally with respect to the first substrate holder on the compressor side of the partition plate; and is attached to the first control substrate, An electrical component box of an air conditioner comprising a heat dissipating fin projecting toward the blower fan. The electrical component box of the air conditioner according to claim 1, wherein the second substrate holder includes a slot for inserting the second control substrate. The electrical component box of the air conditioner according to claim 1 or 2, wherein a reactor is mounted on the second control board. An air conditioner comprising the electrical component box of the air conditioner according to any one of claims 1 to 3.