JP2008298346A - Electrical equipment unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent infiltration of water from a blower chamber into a machine chamber through a gap between a partition mounting plate and a curved face of the partition in the electrical equipment unit of an outdoor unit where an electrical equipment mounting plate for mounting the electrical equipment is supported in an opposing state to the curved face of the partition through the partition mounting plate. <P>SOLUTION: The electrical equipment unit 61 comprises a first substrate mounting plate 72, a first supporting plate 73, and seal members 91, 92. The first substrate mounting plate 72 on which the electrical equipment is mounted, has a flat face. The first supporting plate 73 is disposed between the first substrate mounting plate 72 and the partition 56, and the first substrate mounting plate 72 is supported by the partition 56 in a state that the flat face of the first substrate mounting plate 72 is disposed in the machine chamber S2 in opposition to the curved face of the partition 56. The seal members 91, 92 are disposed between the curved face of the partition 56 and the first supporting plate 73. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention provides an electrical component unit, particularly an outdoor unit having a structure in which the internal space of a substantially rectangular parallelepiped box-shaped casing is divided into a blower chamber and a machine chamber by a partition plate extending vertically so as to face the partition plate. The present invention relates to an electrical component unit to be arranged.

  Some conventional outdoor units have a structure in which the internal space of a substantially rectangular parallelepiped box-shaped casing is divided into a blower chamber and a machine chamber by a partition plate extending vertically. In the casing of such an outdoor unit, outdoor refrigerant circuit components such as a compressor, a heat exchanger, a valve and a refrigerant pipe, and an electrical component unit are arranged.

  As an electrical component unit, in order to suppress the increase in ventilation resistance in the blower chamber as much as possible, the electrical component mounting plate to which the electrical component is mounted is supported in a state of facing the curved surface of the partition plate via the partition plate mounting plate. In some cases, the structure is adopted (see Japanese Patent Application No. 2005-322250).

  However, in such a configuration of the electrical component unit, it is desirable to shape the partition plate mounting plate so that it matches the curved surface of the partition plate as much as possible. However, the dimensional accuracy of each member and the mounting work to the partition plate In consideration of the properties and the like, a gap is generated between the partition plate mounting plate and the curved surface of the partition plate, so that water may enter the machine room from the blower chamber through this gap.

  An object of the present invention is to provide an electrical component unit of an outdoor unit that is supported in a state where an electrical component mounting plate to which electrical components are mounted is opposed to the curved surface of the partition plate via the partition plate mounting plate. It is to prevent water from entering the machine room from the blower room through the gap with the curved surface of the plate.

  An electrical component unit according to a first invention is an outdoor unit having a structure in which an inner space of a substantially rectangular parallelepiped box-shaped casing is divided into a blower chamber and a machine chamber by a partition plate extending vertically, so as to face the partition plate. The electrical component unit is provided with an electrical component mounting plate, a partition plate mounting plate, and a seal member. The electrical component mounting plate is mounted with electrical components and has a flat surface. The partition plate mounting plate is interposed between the electrical component mounting plate and the partition plate so that the flat surface of the electrical component mounting plate is located in the machine room and faces the curved surface of the partition plate. The electric component mounting plate is supported by the partition plate. The seal member is provided between the curved surface of the partition plate and the partition plate mounting plate.

  In this electrical component unit, by providing the seal member between the curved surface of the partition plate and the partition plate mounting plate, the gap between the partition plate mounting plate and the curved surface of the partition plate can be closed. Thereby, it is possible to prevent water from entering the machine room from the blower room.

  The electrical component unit according to the second invention is the electrical component unit according to the first invention, wherein the seal member is attached to the partition plate in a state where the electrical component mounting plate is supported by the partition plate via the partition plate mounting plate. It will be in the state compressed between the plate and the curved surface of the partition plate.

  In this electrical component unit, the seal member is compressed between the partition plate mounting plate and the curved surface of the partition plate in a state where the electrical component mounting plate is supported by the partition plate via the partition plate mounting plate. Therefore, the gap between the partition plate mounting plate and the curved surface of the partition plate can be reliably closed.

  An electrical component unit according to a third aspect of the invention is the electrical component unit according to the second aspect of the invention, wherein the seal member is partitioned so as to protrude from the surface on the partition plate side of the partition plate mounting plate toward the curved surface of the partition plate. It is attached to the plate mounting plate.

  In this electrical component unit, the sealing member is attached to the partition plate mounting plate so as to protrude from the surface on the partition plate side of the partition plate mounting plate toward the curved surface of the partition plate. Compared with the case of attaching to the seal member, the seal member can be easily and reliably attached, and the seal is attached together with the completion of the operation of supporting the electrical component attachment plate on the partition plate via the partition plate attachment plate. Since the member comes into contact with the curved surface of the partition plate and is further compressed, the work of providing the seal member between the curved surface of the partition plate and the partition plate mounting plate is facilitated, and the partition plate mounting plate and the partition are separated. The gap with the curved surface of the plate can be reliably closed only by completing the work of supporting the electrical component mounting plate on the partition plate via the partition plate mounting plate. Can.

  As described above, according to the present invention, the following effects can be obtained.

  In the first invention, water can be prevented from entering the machine room from the blower room.

  In the second invention, the gap between the partition plate mounting plate and the curved surface of the partition plate can be reliably closed.

  In the third aspect of the invention, the operation of providing the seal member between the curved surface of the partition plate and the partition plate mounting plate is facilitated, and the gap between the partition plate mounting plate and the curved surface of the partition plate is set as a partition plate. It can be reliably closed only by completing the operation of supporting the electrical component mounting plate on the partition plate via the mounting plate.

  Hereinafter, an embodiment of an electrical component unit according to the present invention will be described based on the drawings.

(1) Configuration of Outdoor Unit FIG. 1 is a perspective view showing an outdoor unit 2 in which an electrical component unit 61 according to an embodiment of the present invention is adopted (however, it is shown in a state excluding a right front plate). 2 is a perspective view showing the top plate 53, the left front plate 54, the right front plate, the left side plate, and the right side plate 55 from FIG. In the following description, “top”, “bottom”, “left”, “right”, “front”, “rear”, “front”, “back” are shown in FIG. 1 unless otherwise specified. The direction when the outdoor unit 2 to be viewed is viewed from the front side (or the front side) is meant.

  The outdoor unit 2 has a structure in which a blower chamber S1 and a machine chamber S2 are formed by dividing an internal space of a substantially rectangular parallelepiped box-shaped unit casing 51 into right and left by a vertically extending partition plate 56 (so-called trunk type structure). An electrical component unit mainly for controlling the operation of each unit constituting the unit casing 51, outdoor refrigerant circuit components (described later), outdoor fans 36 and 37, and the outdoor unit 2. 61.

  The unit casing 51 mainly includes a bottom plate 52, a top plate 53, a left front plate 54, a left side plate (not shown in FIG. 1), a right front plate (not shown in FIG. 1), and a right side plate 55. (Not shown in FIG. 1) and a partition plate 56.

  The bottom plate 52 is a horizontally long, substantially rectangular metal plate-like member that constitutes the bottom portion of the unit casing 51. The peripheral edge of the bottom plate 52 is bent upward. On the outer surface of the bottom plate 52, two fixed legs 57 fixed to the field installation surface are provided. The fixed leg 57 is a metal plate-like member having a substantially U shape in a front view of the unit casing 51 and extending from the front side to the rear side of the unit casing 51.

  The top plate 53 is a horizontally long, substantially rectangular metal plate-like member that constitutes the top surface portion of the outdoor unit 2.

  The left front plate 54 is a metal plate-like member that mainly constitutes the left front surface portion of the unit casing 51, and a lower portion thereof is fixed to the bottom plate 52 with screws or the like. The left front plate 54 is provided with air outlets 54a and 54b for blowing air taken in from the back side and left side of the unit casing 51 to the outside by the outdoor fans 36 and 37. In the present embodiment, two outlets 54a and 54b are provided side by side in the vertical direction. Further, fan grills 58a and 58b are provided at the air outlets 54a and 54b, respectively.

  The left side plate (not shown in FIG. 1) is a metal plate-like member that mainly constitutes the left side surface portion of the unit casing 51, and its lower part is fixed to the bottom plate 52 with screws or the like. The left side plate can also function as a suction port for air sucked into the unit casing 51.

  The right front plate (not shown in FIG. 1) is a metal plate-like member that mainly constitutes the right front portion and the right front portion of the unit casing 51, and its lower portion is fixed to the bottom plate 52 with screws or the like. Has been. Further, the left side of the right front plate is fixed to the right side of the left front plate 54 with screws or the like.

  The right side plate 55 is a metal plate-like member that mainly constitutes the rear side portion of the right side surface of the unit casing 51 and the right side portion of the back surface, and the lower portion thereof is fixed to the bottom plate 52 with screws or the like.

  The partition plate 56 is a vertically extending metal plate-like member disposed on the bottom plate 52, and forms the blower chamber S1 and the machine chamber S2 by dividing the internal space of the unit casing 51 into left and right. . The lower part of the partition plate 56 is fixed to the bottom plate 52 with screws or the like.

  As described above, the internal space of the unit casing 51 is divided into the blower chamber S <b> 1 and the machine chamber S <b> 2 by the partition plate 56. In the present embodiment, the blower chamber S <b> 1 is a space on the left side of the partition plate 56, and is formed by the bottom plate 52, the top plate 53, the left front plate 54, the left side plate, and the partition plate 56. The machine room S <b> 2 is a space on the right side of the partition plate 56, and is formed by the bottom plate 52, the top plate 53, the right front plate, the right side plate 55, and the partition plate 56. As will be described later, the outdoor heat exchanger 24 and the outdoor fans 36 and 37, which are one of the outdoor refrigerant circuit components, are arranged in the blower chamber S1, and the accumulator 21 and the compression are installed in the machine chamber S2. An outdoor refrigerant circuit component (including the outdoor heat exchanger 24) including members such as devices such as the machine 22, valves, and refrigerant pipes, and the electrical component unit 61 are disposed. In the unit casing 51, the left front plate 54 is disposed so as to face the blower chamber S1, the right front plate is disposed so as to face the machine chamber S2, and the machine room is removed by removing the right front plate. The inside of S2 can be seen. The right front plate may be a member integrated with the left front plate 54 (hereinafter referred to as a front plate). In this case, by removing the front plate, the inside of the blower chamber S1 and the machine chamber S2 is made. You will see. In the present embodiment, the blower room S1 is disposed on the left side and the machine room S2 is disposed on the right side when the outdoor unit 2 is viewed from the front, but the arrangement may be reversed left and right. Thus, the outdoor unit 2 of this embodiment has a structure in which at least a portion of the front plate facing the machine room S2 can be removed.

  The outdoor refrigerant circuit components mainly include an accumulator 21, a compressor 22, an outdoor heat exchanger 24, a first closing valve 26, and a second closing valve 27 (see FIGS. 1 and 2). Here, the outdoor heat exchanger 24 is disposed in the blower chamber S1, and outdoor refrigerant circuit components other than the outdoor heat exchanger 24 are disposed in the machine chamber S2.

  The accumulator 21 is a container for temporarily storing low-pressure refrigerant circulating in the refrigerant circuit 10 connected between the suction port of the compressor 22 and the four-way switching valve 23. In this embodiment, the accumulator 21 is a machine room. It is arranged at the right rear corner of S2 (see FIG. 2).

  The compressor 22 is a compressor having a function of sucking and compressing a low-pressure refrigerant and then discharging it into a high-pressure refrigerant. In this embodiment, other outdoor refrigerant circuit components such as the four-way switching valve 23 are used. In the state where the space for disposing the electrical component unit 61 is opened upward, it is disposed at the approximate center of the machine room S2 in plan view (see FIGS. 1 and 2). In the present embodiment, the compressor 22 is a hermetic compressor in which a compressor motor (not shown) is built in a housing (see FIGS. 1 and 2).

  In the present embodiment, the outdoor heat exchanger 24 is a heat exchanger that functions as a refrigerant cooler using outdoor air as a heat source during cooling, and functions as a refrigerant heater using outdoor air as a heat source during heating. In the present embodiment, the outdoor heat exchanger 24 is a cross fin type fin-and-tube heat exchanger configured by heat transfer tubes and a large number of fins, and is disposed in the blower chamber S1. The outdoor heat exchanger 24 has an L shape in plan view, and is arranged along the left side surface and the back surface of the unit casing 51 (see FIG. 2).

  The first and second closing valves 26 and 27 are valves provided at a connection portion between the refrigerant pipe on the outdoor unit 2 side and the refrigerant communication pipe (not shown). In the present embodiment, the machine chamber of the unit casing 51 is provided. In S2, it is arranged in front of the accumulator 21 and in the vicinity of the corner of the right front plate (see FIGS. 2 and 3).

  The outdoor fans 36 and 37 take in air into the blower chamber S <b> 1 through suction ports (not shown) formed on the left side surface and the back surface of the unit casing 51, pass the outdoor heat exchanger 24, and then the unit casing 51. It is the ventilation fan which functions so that it may blow off from the blower outlets 54a and 54b formed in the front surface of (refer FIG. 1, 2). In the present embodiment, each of the outdoor fans 36 and 37 is a propeller fan that is driven by the outdoor fan motors 36a and 37a, and is disposed on the front side of the outdoor heat exchanger 24 in the blower chamber S1 (FIGS. 1 and 2). reference). The outdoor fan 36 is disposed so as to face the air outlet 54a, and the outdoor fan 37 is disposed so as to face the air outlet 54b (see FIG. 1). That is, the outdoor fan 36 and the outdoor fan 37 are arranged side by side (see FIGS. 1 and 2). Note that the outdoor unit 2 of the present embodiment has a configuration having two outdoor fans 36 and 37, but is not limited to this. For example, as in the case of having one outdoor fan, 2 You may have the number of outdoor fans other than a stand.

  The electrical component unit 61 is disposed in the upper space of the machine room S2, and mainly includes electrical components such as an inverter control element for controlling the rotation speed of a compressor motor (not shown), outdoor fan motors 36a and 37a, and the like. A first board 71 on which a product is mounted, and a second board 81 on which an electrical component such as a microcomputer for performing operation control is mounted (see FIGS. 1 and 2).

(2) Configuration of the electrical component unit and its surroundings Next, the configuration of the electrical component unit 61 of this embodiment and its surroundings will be described with reference to FIGS. Here, FIG. 3 is a perspective view showing the outdoor unit 2 viewed from the blower chamber S1 side (however, only the compressor 22, the bottom plate 52, the partition plate 56, the fixing leg 57, and the electrical component unit 61 are shown). FIG. 4 is a perspective view of the electrical component unit 61 in a state provided in the machine room S2 as viewed from the front side (further, the partition plate 56 is shown by a two-dot chain line). FIG. 5 is a perspective view of the electrical component unit 61 in a state provided in the machine room S2 as viewed from the right side (further, the partition plate 56 is shown by a two-dot chain line). 6 is a schematic cross-sectional view of the electrical component unit 61 and the partition plate 56 provided in the machine room S2 (however, the electrical components mounted on the first and second substrates 71 and 81, the reactor 84, and the heat sink). 74 is shown by a two-dot chain line). FIG. 7 is a view of the electrical component unit 61 in a state provided in the machine room S2 as viewed from the partition plate 56 side. FIG. 8 is a view of the electrical component unit 61 in a state before being provided in the machine room S2 as viewed from the heat sink 74 side. FIG. 9 is a cross-sectional view taken along the line AA of the first board mounting portion 63 in FIG. 8 (further, the partition plate 56 is shown by a two-dot chain line). 10 is a cross-sectional view taken along the line BB of the first board mounting portion 63 in FIG. 8 (further, the partition plate 56 is shown by a two-dot chain line).

  The electrical component unit 61 has a unit housing 62 to which the above-described first and second substrates 71 and 81 are attached. The unit housing 62 mainly has a first board mounting part 63, a second board mounting part 64, and a terminal block mounting part 65. The first substrate mounting portion 63 is mounted with the first substrate 71 and is disposed in the machine room S <b> 2 so as to face the partition plate 56. The second substrate attachment portion 64 is attached to the second substrate, and is disposed in the machine room S2 in a state of facing the front surface (here, the right front plate) of the unit casing 51. The terminal block attaching portion 65 includes a second terminal block 102 to which data transmission wiring and the like exchanged between the first terminal block 101 to which power supply wiring and the like are connected and an indoor unit (not shown) are connected. Is mounted and is disposed in the machine room S2 in a state of facing the front surface (here, the right front plate) of the unit casing 51.

  The first substrate mounting portion 63 mainly has a first substrate mounting plate 72 as an electrical component mounting plate and a first support plate 73 as a partition plate mounting plate. In the present embodiment, the first substrate mounting plate 72 is a resin member, and is a first mounting plate body that forms a flat surface that is inclined with respect to the front surface (here, the right front plate) of the unit casing 51 and extends vertically. 72a and a first mounting plate frame 72b extending from the outer peripheral edge of the first mounting plate main body 72a toward the anti-blower chamber S1 side. And the 1st board | substrate 71 as an electrical component is attached to the surface by the side of the anti-blower chamber S1 of the 1st attachment plate main body 72a with a screw etc. in the state parallel to the flat surface of the 1st attachment plate main body 72a. Yes. That is, the substrate surface of the first substrate 71 is a flat surface that is inclined with respect to the front surface of the unit casing 51 and extends vertically, like the first attachment plate body 72a of the first substrate attachment plate 72. Become. Further, since the inverter control element and the like mounted on the first substrate 71 are electrical components that generate a large amount of heat during operation, the surface of the first mounting plate main body 72a on the side of the blower chamber S1 is connected to the first substrate 71. A heat sink 74 for cooling the mounted electrical component is attached. The heat sink 74 includes a flange portion 74a attached to the surface of the first mounting plate main body 72a on the side of the fan chamber S1, and a plurality of cooling fins protruding from the surface of the flange portion 74a on the side of the fan chamber S1 toward the fan chamber S1. 74b. The first support plate 73 is disposed so as to cover the surface of the first mounting plate main body 72 a on the side of the blower chamber S <b> 1, and is fixed to the first substrate mounting plate 72. In the present embodiment, the first support plate 73 is a metal member, and in the state where the electrical component unit 61 is provided in the machine room S2, the surface of the first mounting plate main body 72a on the side of the blower chamber S1 is mainly used. A first support plate main body 73a in contact with the first support plate main body 73a, a front extending portion 73b extending forward from the front edge of the first support plate main body 73a along the curved surface of the partition plate 56, and a partition from the rear edge of the first support plate main body 73a. And a rear extension 73c extending rearward along the curved surface of the plate 56. Here, the first support plate main body 73a covers substantially the entire surface except the lower part of the first mounting plate main body 72a, and surrounds the outer periphery of the heat sink 74 protruding from the surface on the blower chamber S1 side of the first mounting plate main body 72a. A support plate opening 73d is formed. Thus, in a state where the first support plate 73 is fixed to the first substrate mounting plate 72, the plurality of cooling fins 74b of the heat sink 74 penetrate the support plate opening 73d and the blower chamber S1 of the first support plate main body 73a. Protrudes to the side. The first support plate 73 is fixed to the first substrate mounting plate 72 by engagement claws formed on the first support plate main body 73a, the front extension 73b, or the rear extension 73c. It is fixed to the partition plate 56. More specifically, in the present embodiment, the front extending portion 73b is formed with an engaging claw portion 73i that can be engaged with a slit hole 56b formed in the front portion of the partition plate 56. In the vicinity of the rear extension 73c of the support plate main body 73a, an engaging claw 73j that can be locked in a slit hole 56c formed in the rear portion of the partition plate 56 is formed. The first support plate 73 is fixed to the partition plate 56 by the portions 73 i and 73 j. That is, the first support plate 73 is interposed between the first substrate mounting plate 72 and the partition plate 56, so that the first mounting plate main body 72a forming the flat surface of the first substrate mounting plate 72 is located in the machine room S2. The first substrate mounting plate 72 is supported by the partition plate 56 so as to be in a state of being positioned at and facing the curved surface of the partition plate 56. Here, a partition plate opening 56a is formed in the partition plate 56 so as to communicate the blower chamber S1 and the machine chamber S2. The partition plate opening 56a is formed to face the support plate opening 73d. The first support plate main body 73a extends upward from the upper edge of the partition plate opening 56a, and an upper extension 73e extending toward the partition plate 56 is formed on the upper edge of the first support plate main body 73a. Has been. Further, at the lower edge of the first support plate main body 73a, in a state in which the electrical component unit 61 is provided in the machine room S2, the lower extension extending toward the blower room S1 side and penetrating the partition plate opening 56a is provided. A tongue 73h having a portion 73f and a hanging portion 73g extending downward from the blower chamber S1 side end of the lower extension 73f is formed by bending or the like.

  As described above, the first substrate mounting portion 63 has a machine room such that the front edge and the rear edge thereof are in contact with the curved surface of the partition plate 56 by the front extension portion 73b and the rear extension portion 73c of the first support plate 73. Arranged in S2. The plurality of cooling fins 74b of the heat sink 74 protrude into the blower chamber S1 in a state where the electrical component unit 61 is provided in the machine room S2, and air passing through the blower chamber S1 is used as a cooling source. The electrical components mounted on the first substrate 71 can be cooled.

  The second substrate mounting portion 64 mainly has a second substrate mounting plate 82 and a second support plate 83 as a reactor mounting plate. In the present embodiment, the second substrate mounting plate 82 is a resin member, and is a second mounting plate main body that forms a flat surface that extends parallel to and vertically with respect to the front surface of the unit casing 51 (here, the right front plate). 82a and a second mounting plate frame 82b extending from the outer peripheral edge of the second mounting plate main body 82a toward the front side of the unit casing 51 (hereinafter simply referred to as the front side). A second substrate 81 as an electrical component is placed on the front surface of the second mounting plate body 82a (hereinafter simply referred to as the front surface of the second mounting plate body 82a), and the flat surface of the second mounting plate body 82a. It is attached with screws or the like in a state parallel to. That is, the substrate surface of the second substrate 81 forms a flat surface extending in parallel and vertically to the front surface of the unit casing 51, like the second attachment plate body 82a of the second substrate attachment plate 82. Become. Further, the electrical component such as a microcomputer mounted on the second substrate 81 has a smaller amount of heat during operation than the inverter control element mounted on the first substrate 71. The second support plate 83 is disposed so as to cover the surface on the opposite side of the second mounting plate body 82a (hereinafter simply referred to as the back surface of the second mounting plate body 82a). It is fixed. In the present embodiment, the second support plate 83 is a metal member, and in the state where the electrical component unit 61 is provided in the machine room S2, the second support plate 83 mainly covers the back surface of the second mounting plate main body 82a. A plate body 83a, a left extension 83b extending forward from the left edge of the second support plate body 83a, and a lower extension 83c extending forward from the lower edge of the second support plate body 83a. Have. The second support plate 83 is fixed to the first support plate 73 via the first and second connecting members 66 and 67 while being fixed to the second substrate mounting plate 82. Here, the first connecting member 66 is a metal member in the present embodiment, and mainly the first connecting member main body 66a extending between the front end of the first support plate 73 and the left end of the second support plate 83. And a left extension 66b that extends from the left edge of the first connecting member main body 66a along the front extension 73b of the first support plate 73 and is fixed to the front extension 73b by an engaging claw, a screw, or the like. A right extending portion 66c extending from the right edge of the first connecting member main body 66a along the left extending portion 83b of the second support plate 83 and fixed to the left extending portion 83b by an engaging claw, a screw or the like. Have. The second connecting member 67 is a metal member in the present embodiment, and is arranged so as to be spanned between the upper end of the first support plate 73 and the upper end of the second support plate 83, One end thereof is fixed to the upper extending portion 73e of the first support plate 73 by screws or the like, and the other end is fixed to the upper end of the second support plate main body 83a of the second support plate 83 by screws or the like.

  As described above, the second substrate mounting portion 64 is fixed to the first substrate mounting portion 63 via the first and second connecting members 66 and 67. The first substrate mounting portion 63 to which the second substrate mounting portion 64 is fixed is fixed to the partition plate 56 in a state of being inclined with respect to the front surface of the unit casing 51, and the second substrate mounting portion 64 is a unit. Since the electrical component unit 61 is provided in the machine room S2 because it is disposed so as to face the front surface of the casing 51, it is between the first substrate mounting portion 63 and the second substrate mounting portion 64. A triangular column-shaped space S3 is formed. In this space S3, a reactor 84 that constitutes a rectifier circuit of the outdoor fan motors 36a and 37a for driving the compressor 22, the outdoor fans 36 and 37, and the like is disposed. It is attached to the second support plate 83) that constitutes the back surface of the two-board attachment part 64.

  The terminal block attachment portion 65 mainly has a third support plate 103. In the present embodiment, the third support plate 103 is a metal member, and forms a flat surface extending in parallel and vertically to the front surface of the unit casing 51 (here, the right front plate). The upper end of the third support plate 103 is fixed to the lower extension 83c of the second support plate 83 with screws or the like. The first and second terminal blocks 101 and 102 are fixed to the third support plate 103 so as to face the front surface of the unit casing 51 and are arranged side by side.

  As described above, in the state where the electrical component unit 61 is provided in the machine room S2, the triangular column-shaped space S3 is provided between the first substrate mounting portion 63 and the second substrate mounting portion 64 constituting the unit housing 62. The first and second substrates 71 and 81 are attached to the first and second substrate attachment portions 63 and 64 that form the space S3.

  In the outdoor unit 2 arranged in the unit casing 51 with the electrical component unit 61 having such a structure facing the curved surface of the partition plate 56, the shape of the first support plate 73 as the partition plate mounting plate is set. Although it is desirable to form it so as to match the curved surface of the partition plate 56 as much as possible, in consideration of the dimensional accuracy of each part of the first support plate 73 and the partition plate 56, the space between the first support plate 73 and the partition plate 56 is considered. It is difficult to prevent a gap from being formed on the first support plate 73, and considering the workability of attaching the first support plate 73 to the partition plate 56, a certain amount of gap is provided between the first support plate 73 and the partition plate 56. Therefore, water may enter the machine room S2 from the blower room S1 through such a gap.

  More specifically, in the electrical component unit 61 of the present embodiment, the first substrate mounting portion 63 is passed through the partition plate opening 56a formed in the curved surface of the partition plate 56 so that the heat sink 74 protrudes into the blower chamber S1. The first support plate 73 interposed between the first substrate mounting plate 72 and the partition plate 56 as an electrical component mounting plate is in a state where the portion on the side of the fan chamber S1 is exposed to the fan chamber S1. The heat sink 74 and the partition plate opening 56a are opposed to each other. The front edge and the rear edge of the first support plate 73 are in contact with the curved surface of the partition plate 56 by contacting the curved surface of the partition plate 56 with the front extension portion 73b and the rear extension portion 73c. Is extremely small, the risk of water intrusion into the machine room S2 is reduced, and the upper edge of the first support plate 73 extends to the upper side of the upper peripheral edge of the partition plate opening 56a. In addition, since the upper extension 73e is formed, the risk of water intrusion into the machine room S2 is reduced. However, the lower edge of the first support plate 73 closes the gap between the lower peripheral edge of the partition plate opening 56a and the first support plate main body 73a as much as possible by the tongue 73h, and drops or flows down from above the tongue 73h. Although water can be guided to the blower chamber S1, the viewpoint of ensuring workability when the first substrate mounting portion 63 is attached to the partition plate 56, the front side extension portion 73b, and the rear side extension portion 73c. From the viewpoint of making it difficult for a gap to be formed between the curved surface of the partition plate 56 and the lower extending portion 73f of the tongue 73h, a portion on the front side or a rear side of the partition plate 56 from the partition plate opening 56a. It is difficult to form a shape that closes the gap between the first support plate main body 73a and the gap between the lower edge of the first support plate 73 and the curved surface of the partition plate 56. This gap has occurred Through the water in the machine chamber S2 from the blower chamber S1 and there is a risk of penetration.

  Therefore, in the electrical component unit 61 of this embodiment, the seal members 91 and 92 are provided between the curved surface of the partition plate 56 and the first support plate 73.

  More specifically, in the electrical component unit 61 of the present embodiment, the first substrate mounting plate 72 is supported by the partition plate 56 via the first support plate 73 (that is, the electrical component unit 61 is in the machine room S2). The first seal member 91 is provided so as to close the gap between the first support plate main body 73a and the front side of the front edge of the lower extension 73f of the partition plate 56. A second seal member 92 is provided so as to close the gap between the first support plate main body 73a and the rear edge portion of the lower extension portion 73f of the partition plate 56 (FIG. 6). 7). Here, since the first seal member 91 also covers a part of the upper surface of the front portion of the lower extension portion 73f together with the above-described gap, the water dripped or flowed down on the lower extension portion 73f, It is difficult for the first support plate body 73a to flow toward the gap between the rear edge of the partition plate 56 and the lower extension 73f of the partition plate 56. In addition, since the second seal member 92 covers a part of the upper surface of the rear portion of the lower extension portion 73f as well as the gap described above, the water dropped or flowing down on the lower extension portion 73f is the first. It is difficult to flow toward the gap between the support plate main body 73a and the rear edge of the lower extension 73f of the partition plate 56 rather than the rear edge.

  Thereby, a gap between the first support plate 73 and the curved surface of the partition plate 56 (in this embodiment, the first substrate mounting plate 72 is supported by the partition plate 56 via the first support plate 73). , The gap between the first support plate main body 73a and the front edge of the lower extension 73f of the partition plate 56, and the lower extension 73f of the first support plate main body 73a and the partition plate 56. It becomes possible to close the gap between the rear edge and the rear edge, and to prevent water from entering the machine room S2 from the blower room S1.

  Moreover, in the electrical component unit 61 of the present embodiment, the seal members 91 and 92 are in a state where the first substrate mounting plate 72 is supported by the partition plate 56 via the first support plate 73 (that is, the electrical component unit 61 is In the state provided in the machine room S2, the first support plate 73 and the curved surface of the partition plate 56 are compressed (see FIGS. 6 and 7).

  More specifically, in the electrical component unit 61 of the present embodiment, the first seal member 91 is made of a material such as a rubber material or a foam material that can be compressed and deformed, and the first substrate mounting plate 72 is the first support plate. In a state before being supported by the partition plate 56 via 73 (that is, a state where the electrical component unit 61 is not provided in the machine room S2), the first support plate main body 73a and the lower extension of the partition plate 56 are extended. It has a size that protrudes to the blower chamber S1 side rather than the size of the gap between the front edge of the protruding portion 73f (see FIG. 10). In a state where the substrate mounting plate 72 is supported by the partition plate 56 via the first support plate 73, the first seal member 91 is compressed between the first support plate 73 and the curved surface of the partition plate 56. Na To have. Similarly to the first seal member 91, the second seal member 92 is made of a material such as a rubber material or a foam material that can be compressed and deformed, and the first substrate mounting plate 72 is separated from the partition plate via the first support plate 73. In the state before being supported by 56 (that is, the state where the electrical component unit 61 is not provided in the machine room S2), the rear edge of the first support plate body 73a and the lower extension portion 73f of the partition plate 56 It has a size that protrudes to the blower chamber S1 side rather than the size of the gap with the rear portion (see FIG. 10). In a state where the second seal member 92 is supported by the partition plate 56 via the first support plate 73, the second seal member 92 is compressed between the first support plate 73 and the curved surface of the partition plate 56. Here, as the sealing members 91 and 92, a rubber material or a foamed material can be used. In this embodiment, EPDM (ethylene-propylene-diene rubber) which is a kind of olefin rubber is used.

  Accordingly, the seal members 91 and 92 are disposed between the first support plate 73 and the curved surface of the partition plate 56 in a state where the first substrate mounting plate 72 is supported by the partition plate 56 via the first support plate 73. Therefore, the gap between the first support plate 73 and the curved surface of the partition plate 56 can be reliably closed.

  Furthermore, in the electrical component unit 61 of the present embodiment, the seal members 91 and 92 are protruded from the first support plate 73 and the surface on the partition plate 56 side toward the curved surface of the partition plate 56. Is attached.

  More specifically, the seal members 91 and 92 are attached to a first support plate main body 73 a that forms a flat surface of the first support plate 73.

  Thereby, compared with the case where the sealing members 91 and 92 are attached to the curved surface of the partition plate 56, the attaching operation of the sealing members 91 and 92 can be performed easily and reliably, and the first support plate 73 is provided. The first substrate mounting plate 72 is supported by the partition plate 56 via the first plate (that is, the first support plate 73 fixed to the first substrate mounting plate 72 is fixed to the partition plate 56 by the engaging claws 73i and 73j. When the operation is completed, the seal members 91 and 92 come into contact with the curved surface of the partition plate 56 and are further compressed, so that the seal members 91 and 92 are connected to the curved surface of the partition plate 56 and the first support plate 73. As a result, the gap between the first support plate 73 and the curved surface of the partition plate 56 is made to pass through the first support plate 73 to facilitate the first board mounting plate. It can be closed only by certainly possible to complete the work to support the over preparative 72 to the partition plate 56.

(3) Other Embodiments Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments and can be changed without departing from the scope of the invention. It is.

(A)
In the above-described embodiment, an example in which the present invention is applied not only to the first substrate mounting portion 63 and the first substrate 71 but also to the electrical component unit 61 further including the second substrate mounting portion 64 and the second substrate 81 will be described. However, the present invention is not limited to this, and the present invention can also be applied to an electrical component unit that does not include the second substrate mounting portion 64 and the second substrate 81.

(B)
In the above-described embodiment, because of the configuration of the electrical component unit 61, the gap between the lower edge of the partition plate opening 56a and the first support plate 73, which is the most important in preventing water from entering the machine room S2 from the blower room S1. Although the example which provided the sealing members 91 and 92 only in this part was demonstrated, it is not limited to this, According to the structure of the electrical component unit 61, the upper edge of the partition plate opening 56a and the 1st support plate 73 You may make it provide a sealing member also in other parts, such as between.

(C)
In the above-described embodiment, an example is described in which the first support plate 73 is fixed to the partition plate 56 by the engaging claw portions 73i and 73j. However, the present invention is not limited to this, and the first support plate 73 is fixed to the partition plate 56 by screws or the like. It may be.

  By utilizing the present invention, in an electrical component unit of an outdoor unit that is supported in a state where an electrical component mounting plate to which electrical components are mounted is opposed to the curved surface of the partition plate via the partition plate mounting plate, the partition plate mounting plate and Water can be prevented from entering the machine room from the blower room through the gap with the curved surface of the partition plate.

It is a perspective view (however, it shows in a state except a right front board) which shows an outdoor unit with which an electrical equipment unit concerning one embodiment of the present invention was adopted. FIG. 2 is a perspective view of FIG. 1 excluding a top plate, a left front plate, a right front plate, a left side plate, and a right side plate. It is a perspective view (however, only a compressor, a baseplate, a partition plate, a fixed leg, and an electrical component unit are shown in figure) which shows the outdoor unit seen from the air blower room side. It is the perspective view which looked at the electrical equipment unit of the state provided in the machine room from the front side (further, a partition plate is shown with a dashed-two dotted line). FIG. 2 is a perspective view of the electrical component unit provided in the machine room as viewed from the right side surface (further, the partition plate is shown by a two-dot chain line). FIG. 2 is a schematic cross-sectional view of an electrical component unit and a partition plate provided in a machine room (however, electrical components mounted on first and second substrates, a reactor, and a heat sink are shown by two-dot chain lines). It is the figure which looked at the electrical equipment unit of the state provided in the machine room from the partition plate side. It is the figure which looked at the electrical equipment unit of the state before being provided in a machine room from the heat sink side. It is AA sectional drawing of the 1st board | substrate attachment part in FIG. 8 (further, a partition plate is shown with a dashed-two dotted line). It is BB sectional drawing of a 1st board | substrate attachment part in FIG. 8 (further, a partition plate is shown with a dashed-two dotted line).

Explanation of symbols

2 Outdoor unit 51 Unit casing 56 Partition plate 72 First board mounting plate (electrical component mounting plate)
73 First support plate (partition plate mounting plate)
91, 92 Seal member S1 Blower room S2 Machine room

Claims (3)

In an outdoor unit having a structure in which an internal space of a substantially rectangular parallelepiped box-shaped casing (51) is divided into a blower chamber (S1) and a machine chamber (S2) by a partition plate (56) extending vertically, facing the partition plate An electrical component unit arranged to
An electrical component is mounted, and an electrical component mounting plate (72) having a flat surface;
Between the electrical component mounting plate and the partition plate, so that the flat surface of the electrical component mounting plate is located in the machine chamber and faces the curved surface of the partition plate, A partition plate mounting plate (73) for supporting the electrical component mounting plate on the partition plate;
Seal members (91, 92) provided between the curved surface of the partition plate and the partition plate mounting plate;
An electrical component unit (61).   The seal members (91, 92) are arranged in such a manner that the electrical component mounting plate (72) is supported by the partition plate (56) via the partition plate mounting plate (73). The electrical component unit (61) according to claim 1, wherein the electrical component unit (61) is compressed between the curved surface of the partition plate.   The seal members (91, 92) are attached to the partition plate mounting plate so as to protrude from the partition plate side surface of the partition plate mounting plate (73) toward the curved surface of the partition plate (56). The electrical component unit (61) according to claim 2, wherein:

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