JP4748144B2 - Air conditioner outdoor unit - Google Patents

Description

  The present invention relates to an outdoor unit of an air conditioner.

  DESCRIPTION OF RELATED ART Conventionally, the outdoor unit of the air conditioner by which each apparatus, such as a heat exchanger, a fan, a compressor, and an electrical component box, was accommodated in the housing | casing which has a box-shaped external shape is known (for example, refer patent document 1). .

In the outdoor unit disclosed in Patent Document 1, a partition plate having an opening is provided while partitioning the inside of the housing into a heat exchange chamber and a machine room, and a heat exchanger and a blower are provided in the heat exchange chamber. On the other hand, the machine room is provided with a compressor and an electrical component box. A heat sink for heat dissipation is attached to the electrical component box, and the electrical component box is attached to the partition plate such that the heat sink projects toward the heat exchange chamber through the opening. And the water-shielding board is provided in the lower part of the heat sink protruded in the heat exchange chamber so that the outer surface may be covered. The water shielding plate blocks the rainwater that has entered the heat exchange chamber from entering between the fins of the heat sink when the rainwater is lifted by the fan of the blower. The water shielding plate prevents the rainwater from rising between the fins of the heat sink and entering the electrical component box on the machine room side, and the penetration of the water has an adverse effect on the electrical components in the electrical component box. It is prevented from being exerted.
Japanese Utility Model Publication No. 7-18132

  However, in the configuration of the outdoor unit disclosed in Patent Document 1, it is necessary to avoid interference between the water shielding plate and the fan of the blower due to the provision of the water shielding plate in the heat exchange chamber. There is a problem that the shape of the water shielding plate and the fan of the blower is significantly restricted.

  The present invention has been made in order to solve the above-mentioned problems, and its purpose is to prevent water from being adversely affected by intrusion of water into the electrical component box while preventing electrical components from being adversely affected. It is to provide an outdoor unit of an air conditioner capable of improving the degree of freedom of design of a fan of a section and a blower.

In order to achieve the above object, an outdoor unit of an air conditioner according to the present invention partitions a housing into a heat exchange chamber and a machine room in which a heat exchanger and a blower are arranged, and the heat exchange chamber and the machine room. An outdoor unit of an air conditioner comprising: a partition plate having a hole portion to be communicated; and an electrical component box that is disposed on the machine room side of the hole portion and is attached to the partition plate and holds an electrical component therein. The electrical component box includes a water shielding unit for blocking a path from which water entering the machine room through the hole from the heat exchange chamber enters the interior of the electrical component box from above, and the electrical unit A board holding member that holds a board on which components are mounted and has an opening on a surface opposite to a surface facing the heat exchange chamber, and the electrical component box has the heat exchange through the hole. A heat sink for heat dissipation protruding to the room side is provided, The water shielding portion has a water shielding plate portion extending substantially horizontally so as to block a path for water to enter the interior of the electrical component box, and the water shielding plate portion is located above the upper wall of the substrate holding member. In FIG. 5, the upper wall extends beyond the edge of the opening on the side opposite to the hole .

In the outdoor unit of this air conditioner, since the electrical component box is provided with a water shielding portion for blocking the path through which water enters from the upper part inside the electrical component box, it enters the heat exchange chamber and Even if rainwater pumped up by the fan falls from above into the machine room through the hole in the partition plate, when the rainwater enters the electrical equipment box, it is blocked by the water shielding section and the electricity in the electrical equipment box Reaching the parts can be prevented. For this reason, it is possible to prevent the electrical components from being adversely affected due to the penetration of water into the electrical component box. Furthermore, since the said water shielding part is provided in the electrical component box installed in a machine room, unlike the conventional outdoor unit in which the heat exchanger room was provided with the water shielding board, the water shielding part, the fan of the blower, There is no need to consider the interference. For this reason, the freedom degree of design of a water-impervious part and the fan of an air blower can be improved. Therefore, in this outdoor unit of the air conditioner, the degree of freedom in designing the water shielding part and the fan of the blower is reduced while preventing adverse effects on the electrical components due to the ingress of water into the electrical component box. Can be improved. Moreover, in the outdoor unit of this air conditioner, the heat dissipation effect of the electrical component box can be enhanced by the heat dissipation action of the heat sink. Further, in this outdoor unit of the air conditioner, the heat sink is provided in the heat exchange chamber, while the water shielding portion is provided in the electrical component box disposed in the machine room, so that it is similar to a conventional outdoor unit. Unlike the configuration in which the water shielding plate is provided so as to cover the lower portion of the heat sink provided in the heat exchange chamber, it is possible to prevent the heat dissipation effect of the heat sink from being lowered. For this reason, the heat dissipation effect of a heat sink can fully be exhibited. Further, in this outdoor unit of an air conditioner, the flow of air flowing sideways from the heat exchange chamber to the machine room through the hole of the partition plate is blocked as compared with the case where the water shielding plate extends upward. It is possible to suppress obstruction by the water plate portion. Thereby, the electrical component box can be effectively cooled by this air flow. In the outdoor unit of the air conditioner, since the opening is provided in the substrate holding member, air can be taken inside and outside the substrate holding member through the opening, and the air is held inside the substrate holding member. It is possible to effectively dissipate the electrical components on the substrate. However, due to the opening provided in the substrate holding member, water may enter the substrate holding member through the opening and may adversely affect the electrical component. Since the water shielding plate extends above the upper wall of the substrate holding member and extends beyond the edge of the upper wall to the side opposite to the hole, the fan is blown by the fan in the heat exchange chamber. It is possible to prevent water that is raised and falls from above through the hole of the partition plate from entering the substrate holding member through the opening. Therefore, in this outdoor unit of the air conditioner, the electrical components resulting from the intrusion of water into the substrate holding member while effectively preventing the temperature rise of the electrical components on the substrate held inside the substrate holding member Can prevent adverse effects.

  Furthermore, in this case, it is preferable that the substrate holding member and the water shielding portion are integrally formed using a resin material.

  In this configuration, since the substrate holding member and the water shielding portion are integrally formed using a resin material, the number of parts can be reduced as compared with the case where the substrate holding member and the water shielding portion are individually formed. . Furthermore, in this structure, since the water shielding part is formed of a resin material, it is possible to suppress the water shielding part from functioning as a radiator, unlike the case where the water shielding part is formed of a metal material. . That is, when the water shielding portion is made of metal, when the heat generated from the device outside the substrate holding member is transmitted to the water shielding portion, the water shielding portion radiates heat, so the water shielding portion is provided. The temperature in the vicinity of the substrate holding member rises and the electrical components in the substrate holding member are heated. On the other hand, in this configuration, since the water shielding portion is made of resin and does not dissipate heat, there is no inconvenience as in the case where the water shielding portion is made of metal, and the electrical components in the board holding member are heated. Can be suppressed.

  In the configuration including the substrate holding member, a protective cover is preferably attached to the opening of the substrate holding member.

  If comprised in this way, it can prevent that an operator touches the electrical component in a board | substrate holding member through an opening part at the time of manufacture of an outdoor unit, or a maintenance.

  In this case, it is preferable that the protective cover has a vent hole communicating with the opening of the substrate holding member.

  If comprised in this way, even if it provides a protective cover so that the opening part of a board | substrate holding member may be covered, the ventilation | gas_flowing inside and outside of a board | substrate holding member can be taken through the said ventilation hole. For this reason, it is possible to effectively dissipate heat of the electrical component by ventilation through the vent hole while preventing an operator from touching the electrical component in the substrate holding member.

  Further, in this case, the vent hole is provided in an upper portion of the protective cover, and the water shielding plate portion extends so as not to shield at least a part of the vent hole. Is preferred.

  If comprised in this way, the heat-radiation of the electrical component in a board | substrate holding member can be effectively performed by ventilation | gas_flowing through the said vent hole, preventing the permeation | transmission of the water to the inside of a board | substrate holding member by a water-shielding board part.

  In the configuration having the protective cover, the protective cover has a notch at an upper portion thereof, and the water shielding plate portion has the hole portion at a position corresponding to the notch portion as compared with other portions. It may protrude greatly on the opposite side.

  If comprised in this way, even if the protective cover is attached to the opening part of the board | substrate holding member, ventilation can be taken inside and outside of the board | substrate holding member through the notch part of the protective cover. For this reason, it is possible to effectively dissipate heat of the electrical component by ventilation through the notch while preventing the operator from touching the electrical component in the substrate holding member by the protective cover. Further, in this configuration, the water shielding plate portion protrudes to the opposite side of the hole portion more than the other portion at the portion corresponding to the cutout portion, so that the cutout portion is provided on the upper portion of the protective cover. However, the water which is going to enter into the substrate holding member through the notch can be blocked by the portion of the water shielding plate that protrudes greatly. Therefore, in this configuration, while preventing the operator from touching the electrical components in the board holding member, the electrical components are effectively radiated, and at the same time, adverse effects on the electrical components due to the intrusion of water in the board holding member are prevented. Can be prevented.

  As described above, according to the outdoor unit of an air conditioner of the present invention, while preventing the electrical components from being adversely affected due to the ingress of water into the electrical component box, the water shielding unit and the blower The degree of freedom in fan design can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic layout view of an interior of an outdoor unit of an air conditioner according to an embodiment of the present invention as viewed from above. FIG. 2 is a perspective view showing a mounting structure of the electrical component box 14 to the partition plate 4 in the outdoor unit shown in FIG. FIG. 3 is a perspective view of the electrical component box 14 shown in FIG. FIG. 4 is a perspective view showing a state where the protective cover 28 is removed from the electrical component box 14 of FIG. FIG. 5 is a side view of the electrical component box 14 of FIG. 4, and FIG. 6 is a plan view of the electrical component box 14 of FIG. With reference to FIGS. 1-6, the structure of the outdoor unit of the air conditioner by one Embodiment of this invention is demonstrated.

  As shown in FIG. 1, the outdoor unit of the air conditioner according to the present embodiment includes a box-shaped housing 2, and various devices constituting the outdoor unit are accommodated in the housing 2.

  Specifically, a partition plate 4 is provided in the housing 2, and the partition plate 4 partitions a space in the housing 2 into a heat exchange chamber S 1 and a machine chamber S 2 in the width direction. The partition plate 4 stands substantially perpendicular to the bottom surface in the housing 2 and is curved in the width direction. A rectangular hole 4a (see FIG. 2) that connects the heat exchange chamber S1 and the machine chamber S2 is provided at a position above the center of the partition plate 4.

  The heat exchange chamber S1 is a space facing the convex surface of the partition plate 4 and occupies a larger proportion in the space inside the housing 2 than the machine room S2. A heat exchanger 6 and a blower 8 are installed in the heat exchange chamber S1.

  The heat exchanger 6 performs heat exchange of the refrigerant, and has a shape bent in a substantially L shape. The heat exchanger 6 is disposed along the back surface from one side surface of the housing 2 in the heat exchange chamber S1.

  The blower 8 blows air to the heat exchanger 6 and is disposed in the vicinity of the front surface of the housing 2 in the heat exchange chamber S1. The blower 8 includes a motor 8a and a fan 8b that rotates by driving the motor 8a. The motor 8a is installed in the approximate center of the heat exchange chamber S1, and the fan 8b is arranged on the front side of the housing 2 with respect to the motor 8a.

  An unillustrated back side air inlet is provided in a region corresponding to the heat exchange chamber S1 on the back surface of the housing 2, and an unillustrated side air inlet is provided on the one side surface of the housing 2. . An exhaust port (not shown) is provided on the front surface of the housing 2, and the periphery of the exhaust port is surrounded by the bell mouth 3 in the heat exchange chamber S1. A part of the fan 8 b is fitted in the bell mouth 3. When the fan 8b is rotated by driving the motor 8a of the blower 8, outside air is taken into the heat exchange chamber S1 through the back-side intake and the side-side intake and is sent to the heat exchanger 6, The air that has passed through the exchanger 6 is discharged to the outside through the exhaust port.

  The machine room S <b> 2 is a space that faces the concave side of the partition plate 4 in the housing 2. In the machine room S2, a compressor 10, an accumulator 12, an electrical component box 14, and other components are provided.

  The compressor 10 compresses the refrigerant gas into a high-pressure refrigerant gas, and is disposed in the vicinity of the corner where the back surface and the side surface of the housing 2 intersect in the machine room S2.

  The accumulator 12 separates the liquid refrigerant remaining in the refrigerant gas and prevents the liquid refrigerant from being sucked into the compressor 10, and is arranged in the vicinity of the front surface of the housing 2 in the machine room S2. .

  The electrical component box 14 holds electrical components for controlling each device inside. The electrical component box 14 is attached to the surface of the partition plate 4 on the machine room S2 side, that is, the concave surface of the partition plate 4 at a position corresponding to the hole 4a. As shown in FIG. 3, the electrical component box 14 includes an attachment portion 20, a substrate holding member 22, a substrate 24, a heat sink 26 (see FIG. 5), a protective cover 28, a reactor 30, and a terminal block support portion. 32 and a terminal block 34.

  The attachment portion 20 is for attaching the electrical component box 14 to the partition plate 4. The attachment portion 20 is formed by bending a sheet metal, and is formed in a shape along the curved shape of the partition plate 4 while being bent at a plurality of locations in the width direction. The inner surface of the attachment portion 20 is attached so as to cover the surface of the substrate holding member 24 on the heat exchange chamber S1 side, while the outer surface of the attachment portion 20 is attached to the concave surface of the partition plate 4. The outer surface of the mounting portion 20 is in contact with the concave surface of the partition plate 4 at the bent corner portion, and there is a gap between the portion between the corner portions of the outer surface of the mounting portion 20 and the concave surface of the partition plate 4. Is formed. The air flow created by the blower 8 in the heat exchange chamber S1 flows through the hole 4a of the partition plate 4 and into the machine room S2 through the gap, and the electrical component box 14 and each device in the machine room S2 It contributes to the cooling of. In addition, a rectangular insertion hole 20a (see FIG. 2) is provided in a substantially central portion of the mounting portion 20.

  The substrate holding member 22 holds the substrate 24 inside. The substrate holding member 22 is formed of a flat box made of a resin material as shown in FIG. 4, and has an insertion hole 22a (see FIG. 2) and an opening 22b.

  The insertion hole 22a is provided in a substantially central portion of the surface of the substrate holding member 22 facing the heat exchange chamber S1, and is formed in a rectangular shape. The insertion hole 22a is provided so as to overlap with the insertion hole 20a of the mounting portion 20, and is for inserting the heat sink 26 together with the insertion hole 20a.

  The opening 22b is provided on the surface opposite to the surface facing the heat exchange chamber S1 of the substrate holding member 22, and is rectangularly surrounded by the upper wall 22c, the pair of side walls 22d and 22d, and the bottom wall 22e. Is formed. The opening 22b is for fitting the substrate 24 therein. The substrate 24 is formed in a rectangular shape, and is fitted into the substrate holding member 22 and fixed from the opening 22b side. Various electrical components are mounted on the surface of the substrate 24 facing the machine room S2.

  A water shielding portion 22 f is provided on the upper wall 22 c of the substrate holding member 22. The water shielding portion 22f blocks a path from which water entering the machine chamber S2 from the heat exchange chamber S1 through the hole 4a of the partition plate 4 enters the interior of the electrical component box 14 from above.

  Specifically, rainwater or the like may enter the heat exchange chamber S1 through the intake port or the exhaust port, and the intruded rainwater or the like is scooped up by the fan 8b of the blower 8, In some cases, the machine room S2 may be entered from above the electrical component box 14 through a gap between the concave surface of the portion 4a and the partition plate 4 and the outer surface of the mounting portion 20. At this time, if there is no water shielding part 22f, water enters the electrical component box 14 from the upper part thereof, passes through the upper wall 22c of the substrate holding member 22 and enters the substrate holding member 22 through the opening 22b. There is a risk that the electric component on the substrate 24 may fall on, and in this case, the electric component on the substrate 24 may be adversely affected.

  Therefore, in the present embodiment, the water shielding portion 22 f is provided on the upper wall 22 c of the substrate holding member 22 in order to block such intrusion of water. The water shielding portion 22f is integrally formed with the substrate holding member 22 using a resin material, and as shown in FIG. 5, the standing portion is vertically raised from the upper surface of the upper wall 22c of the substrate holding member 22. 22g and a water shielding plate portion 22h extending from the upper end of the standing portion 22g to the opposite side of the hole 4a of the partition plate 4. As shown in FIG. 6, the water shielding plate portion 22 h is formed in a flat plate shape extending substantially horizontally, and extends so as to block a path through which water enters the electrical component box 14.

  Specifically, the water that enters the interior of the electrical component box 14 passes through the upper wall 22c of the substrate holding member 22 and enters the substrate holding member 22 through the opening 22b as described above. Therefore, the water shielding plate portion 22h is located above the upper wall 22c and beyond the edge of the upper wall 22c on the opening 22b side so as to block the water intrusion route. It extends on the opposite side to 4a. Thereby, since the water which infiltrates into the electrical component box 14 is blocked by the water shielding plate portion 22h, the water prevents the electrical components on the substrate 24 from being adversely affected.

  The heat sink 26 is for radiating heat of the substrate 24 in the electrical component box 14, more specifically, radiating heat of electrical components accompanied by heat generation on the substrate 24. The heat sink 26 passes through the insertion hole 22a of the substrate holding member 22 and the insertion hole 20a of the attachment part 20 from the flat base part (not shown) attached to the back surface of the substrate 24. And a large number of radiating fins 26a which are arranged horizontally at a predetermined interval. Heat generated by the electrical component is transmitted to the heat sink 26 through the substrate 24. The heat radiating fins 26 a protrude toward the heat exchange chamber S <b> 1 through the holes 4 a of the partition plate 4 with the electrical component box 14 attached to the concave surface of the partition plate 4. Thereby, the heat sink 26 is cooled using the air flow created by the blower 8 in the heat exchange chamber S1, and the heat generated in the electrical component is radiated.

  The protective cover 28 is provided so as to partially cover the opening 22 b of the substrate holding member 22, and an operator can use the opening 22 b of the substrate holding member 22 on the substrate 24 during manufacturing or maintenance of the outdoor unit. Prevents touching electrical components. The protective cover 28 is made of sheet metal, and has an upper wall portion 28a, a back wall portion 28b, and side wall portions 28c and 28d.

  The upper wall portion 28 a is placed on the upper wall 20 c of the attachment portion 20 and is fixed to the upper wall 20 c of the attachment portion 20. The upper wall portion 28a is disposed above the water shielding portion 22f and the upper wall 22c of the substrate holding member 22, and extends from the partition plate 4 beyond the edge of the water shielding plate portion 22h of the water shielding portion 22f. It extends substantially horizontally in the direction away from it. The upper wall 28 a is provided with a vent hole 28 e so as to communicate with the opening 22 b of the substrate holding member 22. The vent holes 28e are elongated holes extending in a direction away from the partition plate 4, and three are provided at predetermined intervals in the width direction of the upper wall portion 28a.

  And the water shielding board part 22h of the said water shielding part 22f is extended in the direction away from the said partition plate 4 with the length which does not shield at least one area | region among the said vent holes 28e. That is, each vent hole 28e is partially covered by the water shielding plate 22h in the longitudinal direction of the partition plate 4 while the remaining area of each vent hole 28e is open. Venting into the substrate holding member 22 is possible through the open area of each ventilation hole 28e.

  The back wall portion 28 b is vertically lowered from an edge of the upper wall portion 28 a opposite to the partition plate 4, and is formed to have a size that covers the opening 22 b of the substrate holding member 22. A notch 28f is formed so as to be connected to a part of the rear wall 28b near the front surface of the housing 2 and a part of the upper wall 28a corresponding to this part. ing. In the region where the notch 28f is provided, the substrate 24 in the substrate holding member 22 is exposed. Ventilation can be taken in and out of the substrate holding member 22 through the notch portion 28f, and heat radiation of the electrical components on the substrate 24 in the substrate holding member 22 can be effectively performed by the ventilation.

  The side wall portions 28 c and 28 d extend vertically from both sides in the width direction of the back wall portion 28 b toward the partition plate 4 and are fixed to the corresponding side walls 22 d of the substrate holding member 22.

  The reactor 30 rectifies the current flowing through the substrate 24, and is attached to a portion of the outer surface of the back wall portion that is closer to the back surface of the housing 2 from the center position in the width direction. Although the reactor 30 generates heat when current is rectified, the reactor 30 is cooled by using the wind flowing from the heat exchange chamber S1 to the machine chamber S2 through the hole 4a of the partition plate 4.

  The terminal block support portion 32 supports the terminal block 34, and is formed by bending a sheet metal into a substantially L shape. One end of the terminal block support 32 is fixed to a position below the reactor 30 on the outer surface of the back wall 28 b of the protective cover 28, while the other end is on the side wall 22 d of the substrate holding member 22. It is attached.

  The terminal block 34 is used for electrical connection between the substrate 24 and various electric devices such as the compressor 10 and the blower 8 provided in the housing 2. That is, various electrical devices in the housing 2 are electrically connected to the substrate 24 through the terminal block 34. The terminal block 34 is attached to the outer surface of the terminal block support portion 32.

  As described above, in the outdoor unit of the present embodiment, the water shielding portion 22f is provided in the electrical component box 14 so as to block the path through which water enters from the upper portion thereof. Even if rainwater that has entered and is pumped up by the fan 8b of the blower 8 falls from the top into the machine room S2 through the hole 4a of the partition plate 4, the rainwater enters the electrical component box 14 when it enters. It is possible to prevent the electrical component in the electrical component box 14 from being blocked by the water shielding part 22f. For this reason, it is possible to prevent the electrical components from being adversely affected due to water intrusion into the electrical component box 14. Further, since the water shielding portion 22f is provided in the electrical component box 14 installed in the machine room S2, unlike the conventional outdoor unit in which the water shielding plate is provided in the heat exchange chamber, the water shielding portion 22f There is no need to consider interference between the fan 8 and the fan 8b. For this reason, the freedom degree of design of the water shielding part 22f and the fan 8b of the air blower 8 can be improved. Therefore, in the present embodiment, the degree of freedom in designing the water shielding portion 22f and the fan 8b of the blower 8 is reduced while preventing adverse effects on the electrical components due to the intrusion of water into the electrical component box 14. Can be improved.

  In the present embodiment, since the heat sink 26 protruding toward the heat exchange chamber S1 through the hole 4a of the partition plate 4 is provided in the electrical component box 14, the board in the electrical component box 14 is radiated by the heat sink 26. The heat dissipation effect of 24 can be enhanced. Further, in the present embodiment, the heat sink 26 is provided so as to protrude into the heat exchange chamber S1, while the water shielding portion 22f is provided in the electrical component box 14 provided in the machine room S2. Unlike the configuration in which the water shielding plate is provided so as to cover the lower part of the heat sink provided in the heat exchange chamber as in the machine, it is possible to prevent the heat dissipation effect of the heat sink 26 from being lowered. For this reason, the heat dissipation effect of the heat sink 26 can be sufficiently exhibited.

  Moreover, in this embodiment, since the water shielding part 22f has the water shielding board part 22h extended substantially horizontally so that the path | route where water infiltrates into the inside of the electrical component box 14 is interrupted, the water shielding board part 22h Compared with the case where it extends upward, the flow of air flowing from the heat exchange chamber S1 to the machine chamber S2 through the hole 4a of the partition plate 4 is prevented from being obstructed by the water shielding plate 22h. Can do. Thereby, the electrical component box 14 can be effectively cooled by this air flow.

  In the present embodiment, since the opening 22 b is provided in the substrate holding member 22, the inside and outside of the substrate holding member 22 can be ventilated through this opening 22 b, and the inside of the substrate holding member 22 is held. In addition, the heat dissipation of the electrical components on the substrate 24 can be effectively performed. Further, since the water shielding plate 22h extends beyond the edge on the opening 22b side of the upper wall 22c of the substrate holding member 22 to the side opposite to the partition plate 4, the fan 8b of the blower 8 is provided in the heat exchange chamber S1. Thus, it is possible to prevent water that has been scooped up and falls from above into the machine chamber S2 through the hole 4a of the partition plate 4 from entering the substrate holding member 22 through the opening 22b. Therefore, in the present embodiment, while effectively preventing the temperature rise of the electrical component on the substrate 24 held inside the substrate holding member 22, the electrical component caused by the penetration of water into the substrate holding member 22 is obtained. Can prevent adverse effects.

  Moreover, in this embodiment, since the board | substrate holding member 22 and the water shielding part 22f are integrally molded using the resin material, it is components compared with the case where the board | substrate holding member 22 and the water shielding part 22f are formed separately. The score can be reduced. Furthermore, in this embodiment, since the water shielding part 22f is formed of a resin material, unlike the case where the water shielding part is formed of a metal material, the water shielding part 22f is prevented from functioning as a radiator. be able to. That is, when the water shielding portion is made of metal, the heat shielding portion 22f is provided because the water shielding portion radiates heat when heat generated from a device or the like outside the substrate holding member 22 is transmitted to the water shielding portion. The temperature in the vicinity of the substrate holding member 22 is increased, and the electrical components in the substrate holding member 22 are heated. On the other hand, in this embodiment, since the water shielding portion 22f is made of resin and does not dissipate heat, there is no inconvenience as in the case where the water shielding portion is made of metal. Heating can be suppressed.

  In the present embodiment, since the protective cover 28 is attached to the opening 22b of the substrate holding member 22, an operator can use the opening 22b to connect the electric power in the substrate holding member 22 during manufacture or maintenance of the outdoor unit. Touching parts can be prevented.

  In this embodiment, since the protective cover 28 has the vent hole 28e communicating with the opening 22b of the substrate holding member 22, even if the protective cover 28 is provided so as to cover the opening 22b of the substrate holding member 22, Ventilation inside and outside the substrate holding member 22 can be taken through the ventilation hole 28e. For this reason, it is possible to effectively dissipate heat from the electrical component by ventilation through the vent hole 28e while preventing the operator from touching the electrical component in the substrate holding member 22.

  Further, in this embodiment, the water shielding plate 22h extends in such a length that does not shield at least a part of the vent hole 28e. It is possible to effectively dissipate heat from the electrical components in the substrate holding member 22 by venting through the vent hole 28e while preventing water from entering.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes meanings equivalent to the scope of claims for patent and all modifications within the scope.

  For example, as in the modification of the above-described embodiment shown in FIG. 7, the hole 4 a of the partition plate 4 is located in a portion corresponding to the notch portion 28 f of the protective cover 28 in the water shielding plate portion 22 h than in other portions. A protruding portion 22i that protrudes greatly on the opposite side may be provided.

  According to the configuration of this modified example, even when the protective cover 28 is attached to the opening 22b of the substrate holding member 22, the inside and outside of the substrate holding member 22 are ventilated through the notch portion 28f of the protective cover 28, as in the above embodiment. Can be taken. For this reason, while preventing the operator from touching the electrical components in the substrate holding member 22 by the protective cover 28, the electrical components can be effectively dissipated by ventilation through the notches 28f. Further, in this modified example, since the protruding portion 22i is provided at a location corresponding to the notch portion 28f in the water shielding plate portion 22h, even if the notch portion 28f is provided above the protective cover 28, Water that is about to enter the substrate holding member 22 through the notch 28f can be blocked by the protrusion 22i. Therefore, in this modified example, while preventing the operator from touching the electrical components in the substrate holding member 22, the electrical components are effectively radiated, and at the same time, the electrical components due to water intrusion into the substrate holding member 22. Can prevent adverse effects.

It is the schematic layout figure which looked at the inside of the outdoor unit of the air conditioner by one Embodiment of this invention from upper direction. It is the perspective view which showed the attachment structure of the electrical component box with respect to a partition plate in the outdoor unit shown in FIG. It is a perspective view of the electrical component box shown in FIG. It is the perspective view which showed the state which removed the protective cover from the electrical component box of FIG. It is a side view of the electrical component box of FIG. It is a top view of the electrical component box of FIG. It is the perspective view corresponding to FIG. 3 which showed the electrical component box of the outdoor unit of the air conditioner by the modification of one Embodiment of this invention.

Explanation of symbols

2 Housing 4 Partition plate 4a Hole 6 Heat exchanger 8 Blower 14 Electrical component box 22 Substrate holding member 22b Opening 22c Upper wall 22f Water shield 22h Water shield 24 24 Substrate 26 Heat sink 28 Protective cover 28e Vent S1 Heat Exchange room S2 Machine room

Claims (6)

A partition plate having a hole portion for partitioning the inside of the housing into a heat exchange chamber and a machine room in which a heat exchanger and a blower are disposed and communicating the heat exchange chamber and the machine room, and on the machine room side of the hole portion An outdoor unit of an air conditioner that is disposed and attached to the partition plate and includes an electrical component box that holds electrical components therein,
The electrical component box is mounted with a water shielding part for blocking a path for water entering the machine room from the heat exchange chamber through the hole to enter the interior of the electrical component box from above, and the electrical component is mounted. A substrate holding member having an opening on a surface opposite to a surface facing the heat exchange chamber while holding the substrate that is made inside,
The electrical component box is provided with a heat sink for heat dissipation that protrudes toward the heat exchange chamber through the hole,
The water shielding portion has a water shielding plate portion extending substantially horizontally so as to block a path for water to enter the interior of the electrical component box,
The outdoor unit of an air conditioner , wherein the water shielding plate extends above the upper wall of the substrate holding member and extends beyond the edge of the upper wall on the opening side to the opposite side of the hole . The outdoor unit of an air conditioner according to claim 1 , wherein the substrate holding member and the water shielding portion are integrally formed using a resin material. The outdoor unit of the air conditioner according to claim 1 or 2 , wherein a protective cover is attached to the opening of the substrate holding member. The outdoor unit of an air conditioner according to claim 3 , wherein the protective cover has a vent hole communicating with the opening of the substrate holding member. The vent is provided in the upper part of the protective cover,
The outdoor unit of an air conditioner according to claim 4 , wherein the water shielding plate portion extends with a length that does not shield at least a part of the vent hole. The protective cover has a notch at the top,
The air conditioner according to any one of claims 3 to 5 , wherein the water shielding plate portion protrudes more on the opposite side to the hole portion than the other portion at a portion corresponding to the notch portion. Outdoor unit.

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