JP6135853B2 - Air conditioner outdoor unit - Google Patents

Description

  The present invention relates to an outdoor unit of an air conditioner, and in particular, a ventilation unit that communicates a machine room provided in the lower stage of the outdoor unit and a heat exchanger room provided in the upper stage to release hot air in the machine room to the heat exchanger room. Related to the structure.

  Conventionally, as proposed in Patent Documents 1 and 2, an air conditioner of a type in which a compressor is driven by an engine is known in which a machine room is arranged at the lower stage of the outdoor unit and a heat exchanger room is arranged at the upper stage. ing. For example, as shown in FIG. 7, in the outdoor unit 100, the main body casing 101 is vertically partitioned by a partition plate 110, and machinery 121 such as an engine and a compressor is disposed in a lower machine chamber 120. A heat exchanger 131 and a heat exchanging fan 132 for exchanging heat between the refrigerant and the outside air are arranged in the upper heat exchanger chamber 130. The heat exchanger chamber 130 includes heat exchangers 131 on the front and left and right side surfaces, and a central portion surrounded by the heat exchanger 131 serves as a passage through which the gas after heat exchange passes.

  The interior of the machine room 120 becomes hot due to the operation of the engine. Therefore, the partition plate 110 is formed with a ventilation opening 111 that allows the machine room 120 and the heat exchanger room 130 to communicate with each other, and the heat in the machine room 120 is transferred to the heat exchanger using the heat exchange fan 132. It is configured such that it can be sucked into the chamber 130 and discharged out of the outdoor unit 100. This ventilation opening 111 is provided with a ventilation port unit 200 that allows hot air in the machine room 120 to escape to the heat exchanger room 130 while preventing water from entering the machine room 120 from the heat exchanger room 130. The ventilation port unit 200 is a rectangular frame-shaped lower pedestal 210 fixed around a ventilation opening 111 formed in the partition plate 110, and an upper supported by the lower pedestal 210 so as to cover the lower pedestal 210 from above. And a cover 220.

  FIG. 8 is a perspective view of the ventilation port unit 200. 9 shows a plan view of the lower pedestal, and FIG. 10 shows a longitudinal section of the ventilation port unit 200 (the state in which the ventilation port unit 200 is fixed to the partition plate 110) at the AA line position in FIG. FIG. 11 shows a longitudinal section of the ventilation port unit 200 (the state in which the ventilation port unit 200 is fixed to the partition plate 110) at the BB line position in FIG. The lower pedestal 210 has a horizontal plate frame 212 formed in the center with a square opening 211 and placed on the upper surface of the partition plate 110 via a sealant 230, and upward from the inner peripheral end of the horizontal plate frame 212. It is comprised from the rectangular frame-shaped vertical frame part 213 extended. The horizontal plate frame portion 212 and the vertical frame portion 213 are integrally formed of resin. In the vertical frame portion 213, support pillars 214 for supporting the upper cover 220 are formed at the four corners. A screw hole 215 is formed at the top of the support column 214. In the vertical frame portion 213, notches 217 are formed in the upper portions of the four vertical walls 216 between the adjacent support columns 214. Therefore, the height of the four vertical walls 216 excluding the corners of the vertical frame portion 213 is lower than the height of the support pillar 214. Further, through holes 218 for fixing the lower pedestal 210 to the partition plate 110 are formed in the horizontal plate frame portion 212 at predetermined intervals. The lower pedestal 210 is disposed on the upper surface of the partition plate 110 so as to surround the ventilation opening 111 formed in the partition plate 110 with the horizontal plate frame portion 212, and the rear surface of the horizontal plate frame portion 212 and the partition plate 110. In a state where the sealing material 230 is interposed between the upper surface and the upper surface, the screw 231 is inserted through the through hole 218 and the screw 231 is tightened to be fixed to the partition plate 110.

  The upper cover 220 includes an upper surface cover part 221 that is a rectangular flat plate that covers the lower pedestal 210 from above including the ventilation opening 111, and a rectangular cylindrical side cover that extends downward from the periphery of the upper surface cover part 221. Part 222. The upper surface cover part 221 and the side surface cover part 222 are integrally formed of resin. In the upper surface cover part 221, through holes 224 for fixing the upper cover 220 to the support pillars 214 of the lower pedestal 210 are formed at four corners. The upper cover 220 is attached on the lower pedestal 210 with the lower pedestal 210 fixed to the partition plate 110. In this case, the upper cover 220 is fixed to the lower pedestal 210 by inserting and tightening the screw 232 through the through hole 224 in a state where the through hole 224 is positioned so as to face the screw hole 215 of the support column 214.

  When the ventilation port unit 200 is attached to the partition plate 110 in this way, the ventilation port unit 200 has a room 225 surrounded by the upper surface cover part 221 of the upper cover 220 and the vertical frame part 213 of the lower pedestal 210. It is formed so as to face the ventilation opening 111 of the plate 110. As shown in FIG. 11, the hot air generated in the machine room 120 enters the room 225 through the ventilation opening 111 and is discharged from the notch 217 to the outside of the room 225. The hot air is guided downward through an air passage 226 formed between the vertical frame portion 213 and the side surface cover portion 222 and then discharged to the heat exchanger chamber 130. The hot air discharged into the heat exchanger chamber 130 is sucked by the heat exchange fan 132 and discharged outside the apparatus.

JP 2009-68743 A JP 2009-68750 A

(Problems to be solved by the invention)
By providing the ventilation port unit 200 in this way, water does not enter the machine room 120 from the heat exchanger room 130 through the air passage 226 and the room 225, but as shown by an arrow A1 in FIG. There is a risk that water may enter from the through hole 218 through which the screw 231 for fixing the lower pedestal 210 is inserted and the screw hole 212 formed in the partition plate 110 to enter the machine chamber 120. Further, as shown by an arrow A2 in FIG. 10, water enters through a through hole 224 through which a screw 232 for fixing the upper cover 220 is inserted, and passes through a path of room 225 → ventilation opening 111 → machine room 120. There is also a risk of water entering the machine room 120. For this reason, the caulking agent is applied to the screw attachment portions 241 and 242 so as to close the through holes 218 and 224. Therefore, the cost increase accompanying coking is invited. In addition, it is difficult to guarantee 100% sealing in the caulking process.

  The present invention has been made to cope with the above-described problems, and an object thereof is to reduce coking in a ventilation port unit.

(Means for solving the problem)
A feature of the present invention that solves the above problems is that a machine casing (120) in which a main body casing is partitioned vertically by a partition plate (110) and a compressor driven by an engine is disposed in a lower stage, and a heat exchanger in an upper stage. And a heat exchanger chamber (130) in which a heat exchanging fan is disposed, and the heat exchange in the machine chamber is performed by communicating the machine chamber and the heat exchanger chamber with the partition plate. In the outdoor unit of an air conditioner provided with a vent unit (10) that prevents water from entering the machine room from the heat exchanger room while letting it escape to the chamber.
The ventilation port unit (10)
A horizontal plate frame portion (30) that surrounds the ventilation opening (111) formed in the partition plate and is tightly fixed to the upper surface of the partition plate by a base fixing screw (81); and upward from the horizontal plate frame portion A lower pedestal (20) integrally formed with a cylindrical vertical frame portion (40) surrounding the ventilation opening, with a vertical wall facing up;
An upper cover (50) fixed to the lower pedestal so as to be able to ventilate at least a range surrounded by the vertical wall of the vertical frame portion from above the lower pedestal;
The pedestal fixing screw is provided through the horizontal plate frame portion and the partition plate at a position facing the room (11) covered with the upper cover and surrounded by the vertical frame portion of the lower pedestal. It is in.

  In the outdoor unit of the air conditioner according to the present invention, the main body casing is partitioned vertically by a partition plate, a machine room is formed in the lower stage, and a heat exchanger room is formed in the upper stage. The partition plate is formed with a ventilation opening, and a ventilation port unit is provided in the ventilation opening. The ventilation port unit includes a lower pedestal and an upper cover, communicates the machine room and the heat exchanger room, and releases the hot air in the machine room to the heat exchanger room, while the heat exchanger room to the machine room. Prevent water ingress.

  The lower pedestal is integrally formed by a horizontal plate frame part and a vertical frame part. The horizontal plate frame portion surrounds the ventilation opening formed in the partition plate, and is firmly fixed to the upper surface of the partition plate by a base fixing screw. For example, the horizontal plate frame portion is placed on the upper surface of the partition plate via a sealing material, and is fixed to the partition plate in a watertight manner by a base fixing screw. The vertical frame portion is formed in a cylindrical shape in which a vertical wall is erected upward from the horizontal plate frame portion and surrounds the ventilation opening. The upper cover is fixed to the lower pedestal so as to cover at least a range surrounded by the vertical wall of the vertical frame portion from above the pedestal. Therefore, a room covered with the upper cover and surrounded by the vertical frame portion is formed in the ventilation port unit. This room is formed so as to be able to ventilate in communication with the outside, but since it is covered with an upper cover, water does not enter the inside.

  The pedestal fixing screw is provided through the horizontal plate frame portion and the partition plate at a position facing the room, and fixes the horizontal plate frame portion to the upper surface of the partition plate. Accordingly, since water is not applied to the portion where the base fixing screw is provided, the base fixing screw does not enter the machine room due to water entering from the portion penetrating the horizontal plate frame portion and the partition plate. Thereby, according to this invention, the caulking process of the attaching part of the base fixing screw becomes unnecessary. Therefore, cost reduction can be achieved. Moreover, the sealing performance of the ventilation port unit can be improved.

  Another feature of the present invention is that the lower pedestal has a support portion (42, 42 ') for supporting and fixing the upper cover on the vertical frame portion, and an upper cover fixing screw (82) in the support portion. ) And the wall (41a, 42b) extending to a position higher than the through holes (75, 75 ′) penetrating the upper cover. This prevents water that has entered from the through hole from entering the room.

  In the ventilation port unit provided in the outdoor unit of the present invention, the upper cover is fixed to the support portion formed on the lower pedestal by the upper cover fixing screw. When the upper cover is fixed with the upper cover fixing screw, the upper cover fixing screw penetrates the upper cover, so that it is necessary to prevent water from entering the room from the through portion. Therefore, the lower pedestal has a wall in which the cover fixing screw extends to a position higher than the through hole penetrating the upper cover, and this wall allows water that has entered from the through hole to enter the room. To prevent. That is, by providing a wall that extends to a position higher than the through hole in the path through which water passes from the through hole to the room, the path through which the water that has entered from the through hole passes into the room is blocked. Therefore, according to the present invention, even when the upper cover is fixed with screws, the caulking process of the mounting portion of the upper cover fixing screw is not required. Therefore, cost reduction can be achieved. Moreover, the sealing performance of the ventilation port unit can be improved.

Another feature of the present invention is that the lower pedestal is formed with a support portion (42) protruding outside the room at an intermediate position in the height direction of the vertical frame portion,
The upper cover includes a plate-like upper surface cover portion (60) that covers a range wider than the range surrounded by the vertical wall of the vertical frame portion, and extends downward from the periphery of the upper surface cover portion. A plate-like side surface cover portion (70) that forms an air passage (12) with the outer surface of the vertical frame portion, and an upper surface of the support portion at an intermediate position in the height direction of the side surface cover portion. A mounting plane (72a) that is mounted on the through hole (75) is formed, and the upper cover fixing screw (82) is inserted through the through hole to support the support portion on the mounting plane. It is to be fixed with screws.

  In the ventilation port unit provided in the outdoor unit of the present invention, the upper cover is fixed to the support portion formed on the lower pedestal by the upper cover fixing screw. The support portion is formed so as to protrude outside the room at an intermediate position in the height direction of the vertical frame portion. The upper cover includes an upper surface cover portion and a side surface cover portion. The upper surface cover portion is a plate-like body that covers a range wider than the range surrounded by the vertical wall of the vertical frame portion from above, and the side surface cover portion is integrally extended downward from the periphery of the upper surface cover portion. It is a plate-shaped body which forms a ventilation path between the outer surface of a part. A mounting plane is formed on the side cover portion at an intermediate position in the height direction. The upper cover is supported by the support portion by placing the placement plane on the upper surface of the support portion of the lower pedestal. By supporting the mounting plane with the support portion, for example, the upper surface cover portion can be set at a position away from the front end of the vertical frame portion, and the upper periphery of the room can be opened to communicate with the air passage. .

  A through hole is formed in the mounting plane. The upper cover is screwed and fixed to the support portion by inserting an upper cover fixing screw through the through hole with the mounting plane placed on the upper surface of the support portion. If water is splashed on the upper cover, water may enter the through hole. However, in the present invention, since the support portion is formed at an intermediate position in the height direction of the vertical frame portion, the vertical frame portion is a wall extending to a position higher than the upper surface of the support portion. For this reason, even if the water that has entered the through-hole is transmitted through the upper surface of the support portion, the vertical frame portion prevents water from entering the room. Therefore, according to the present invention, even when the upper cover is fixed with screws, the caulking process of the mounting portion of the upper cover fixing screw is not required. Therefore, cost reduction can be achieved. Moreover, the sealing performance of the ventilation port unit can be improved.

  In the above description, in order to help the understanding of the invention, the reference numerals used in the embodiment are attached in parentheses to the configuration of the invention corresponding to the embodiment. It is not limited to the embodiment defined by the reference numerals.

It is a partially broken schematic perspective view of the outdoor unit of the air conditioner of this embodiment. It is a perspective view of the ventilation port unit of an embodiment. It is a top view of the lower pedestal of an embodiment. It is a longitudinal cross-sectional view of the ventilation unit in the aa position of FIG. It is a longitudinal cross-sectional view of the ventilation unit in the bb position of FIG. It is a longitudinal cross-sectional view of the ventilation unit of a modification. It is a partially broken schematic perspective view of the outdoor unit of the air conditioner of a prior art example. It is a perspective view of the ventilation port unit of a prior art example. It is a top view of the lower base of a prior art example. It is a longitudinal cross-sectional view of the ventilation unit in the AA position of FIG. It is a longitudinal cross-sectional view of the ventilation unit in the BB position of FIG.

  Hereinafter, an outdoor unit of an air conditioner according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partially broken schematic perspective view of an outdoor unit, and FIG. 2 is a perspective view of a ventilation port unit provided in the outdoor unit. The outdoor unit 1 of the present embodiment is provided with a ventilation port unit 10 in place of the ventilation port unit 200 in the outdoor unit 100 as the conventional device shown in FIG. It is the same as the device. Therefore, about the same structure as a conventional apparatus, the same code | symbol as a conventional apparatus is attached | subjected to drawing, and description is abbreviate | omitted.

  The ventilation port unit 10 is provided so as to cover a ventilation opening 111 formed in the partition plate 110, and escapes hot air generated in the machine room 120 to the heat exchanger room 130, while the heat exchanger room 130 moves from the machine room to the machine room. This prevents water from entering into 120. The ventilation port unit 10 is arranged so as to cover the lower pedestal 20 in the form of a square frame fixed around the ventilation opening 111 formed in the partition plate 110, and to cover the lower pedestal 20 and the ventilation opening 111 from above. The upper cover 50 is supported and fixed to the base 20. FIG. 3 is a plan view of the lower pedestal 20, and FIG. 4 is a longitudinal section of the ventilation port unit 10 (a state in which the ventilation port unit 10 is fixed to the partition plate 110) at the aa line position in FIG. FIG. 5 shows a longitudinal section of the ventilation port unit 10 (a state in which the ventilation port unit 10 is fixed to the partition plate 110) at the position of the line bb in FIG.

  The lower pedestal 20 includes a rectangular frame-shaped horizontal plate frame portion 30 having a square opening 31 formed at the center, and a rectangular tube-shaped vertical frame portion 40 extending upward from the outer peripheral end of the horizontal plate frame portion 30. It consists of. The horizontal plate frame portion 30 and the vertical frame portion 40 are integrally formed of resin. The horizontal plate frame portion 30 is a portion that is placed on the upper surface of the partition plate 110 via the sealing material 83 around the ventilation opening 111. Through holes 32 for fixing the lower pedestal 20 to the partition plate 110 are formed in the horizontal plate frame portion 30 at a predetermined interval.

  The vertical frame portion 40 includes four vertical walls 41 extending upward from the outer peripheral ends of the four sides of the horizontal plate frame portion 30. Each vertical wall 41 is formed with a support portion 42 that protrudes outward at the center position in the width direction. In addition, the outward direction (outside) in the ventilation port unit 10 represents a direction away from the central axis of the ventilation port unit 10 (the central axis of the ventilation opening 111) in the horizontal direction. Represents the opposite direction. As shown in FIG. 4, the support portion 42 is formed at an intermediate position in the height direction of each vertical wall 41, so that the vertical wall 41 extends above the upper surface 42 a of the support portion 42. Become. The portion of the vertical wall 41 that extends above the upper surface 42a of the support portion 42 is particularly referred to as an upper vertical wall 41a. A screw hole 43 for fixing the upper cover 50 is formed in each support portion 42 so as to penetrate in the vertical direction.

  The lower pedestal 20 is disposed on the upper surface of the partition plate 110 so as to surround the ventilation opening 111 formed in the partition plate 110 with the horizontal plate frame portion 30, and the rear surface of the horizontal plate frame portion 30 and the upper surface of the partition plate 110. With a sealing material 83 such as packing interposed therebetween, the screw 81 is inserted into the through-hole 32 and tightened, so that the screw 81 is screwed into the through-hole 113 formed in the partition plate 110 and partitioned. It is fixed to the plate 110. Since the sealing material 83 is disposed between the back surface of the horizontal plate frame portion 30 and the upper surface of the partition plate 110, the sealing material 83 is also provided around the through hole 32. Hereinafter, a portion where the lower pedestal 20 is fixed to the partition plate 110 with the screws 81 is referred to as a pedestal screw portion 91.

  The upper cover 50 includes an upper surface cover portion 60 that is a rectangular flat plate that covers the lower pedestal 20 from above including the ventilation opening 111, and a rectangular cylindrical side surface cover portion 70 that extends downward from the periphery of the upper surface cover portion 60. It consists of. The upper surface cover part 60 and the side surface cover part 70 are integrally formed of resin. The side cover portion 70 is formed in a step shape so as to expand outward in an intermediate position in the height direction. That is, the side surface cover part 70 extends horizontally from the four upper side wall walls 71 extending downward from the outer peripheral ends of the four sides of the upper surface cover part 60 and from the lower end of each upper side wall wall 71 outward. It is integrally formed from four middle horizontal walls 72 and four lower side walls 73 extending downward from the outer peripheral end of each middle horizontal wall 72. The length in the height direction of the upper side wall 71 is formed longer than the length in the height direction of the upper vertical wall 41 a of the lower pedestal 20.

  On the four side surfaces of the side cover portion 70, connection concave portions 74 are formed at intermediate positions in the width direction. The connecting recess 74 serves as a portion for connecting the upper cover 50 to the support portion 42 of the lower pedestal 20. The connecting concave portion 74 has a middle horizontal mounting wall 72a formed by horizontally extending an intermediate portion in the width direction of the middle horizontal wall 72 and a middle portion in the width direction of the upper side wall 71 inwardly depressed. The upper concave side wall 71a is formed in a cylindrical shape. The inner end of the middle horizontal mounting wall 72a is formed in an arc shape and is integrally connected to the lower end of the upper concave side wall 71a. A through hole 75 for fixing the upper cover 50 to the lower pedestal 20 is formed in the middle horizontal mounting wall 72a. The middle horizontal placement wall 72a corresponds to the placement plane of the present invention.

  The upper cover 50 is configured so that the lower pedestal 20 is fixed to the partition plate 110 by placing a middle horizontal placement wall 72a on the upper surface 42a of each support portion 42 of the lower pedestal 20, thereby Positioned to cover from above. When the upper cover 50 is placed on the lower pedestal 20, the upper vertical wall 41 a of the lower pedestal 20 comes into contact with the inner side surface of the upper concave side wall 71 a and guides the connecting concave portion 74 to the support portion 42. That is, the upper vertical wall 41a and the upper concave side wall 71a function as a guide member when the upper cover 50 is attached. Therefore, the upper cover 50 can be easily placed at a predetermined position on the lower pedestal 20.

  In this mounting state, the screw hole 43 of the support portion 42 and the through hole 75 of the middle horizontal mounting wall 72a are substantially aligned. Accordingly, the screw 82 is inserted into the through hole 75 and tightened as it is, so that the screw 82 is screwed into the screw hole 43 and the upper cover 50 is supported and fixed to the support portion 42 of the lower base 20. Hereinafter, a portion where the upper cover 50 is fixed to the support portion 20 of the lower pedestal 20 by the screw 82 is referred to as a cover screw portion 92.

  In FIG. 3, the relative planar position of the upper cover 50 with respect to the lower pedestal 20 is indicated by a two-dot chain line. As shown in the figure, each upper side wall 71 of the upper cover 50 is formed at a position that is outside the vertical wall 41 of the lower pedestal 20 by a distance D1, and each lower side wall 73 is each vertical side of the lower pedestal 20. It is formed at a position outside the wall 41 by a distance D2. Therefore, the upper cover 50 covers a range wider than the range surrounded by the vertical wall 41 of the lower pedestal 20 from above.

  When the ventilation port unit 10 is attached to the partition plate 110 in this way, the room 11 (referred to as the central room 11) covered with the upper cover 50 and surrounded by the vertical frame portion 40 is ventilated in the ventilation port unit 10. It is formed so as to face the opening 111 for use. The upper end of the vertical frame portion 40 does not contact the back surface of the upper surface cover portion 60. For this reason, the upper periphery of the central room 11 is open so as to be able to ventilate the outside. In addition, an air passage 12 surrounded by the vertical wall 41, the side surface cover part 70, and the upper surface cover part 60 is formed on the outer periphery of the central chamber 11 (see FIG. 5). This air passage 12 communicates with the upper periphery of the central room 11. Therefore, the machine room 120 and the heat exchanger room 130 communicate with each other via the central room 11 and the air passage 12.

  While the outdoor unit 1 is in operation, the inside of the machine room 120 becomes hot due to the operation of the engine, but hot air in the machine room 120 is sucked by the heat exchanging fan 132 operating at the same time. In this case, as shown in FIG. 5, the hot air in the machine room 120 enters the central room 11 through the ventilation opening 111 and is sent from the periphery of the upper part of the central room 11 to the ventilation path 12. Then, the hot air flows downward through the air passage 12 and is then discharged into the heat exchanger chamber 130, sucked by the heat exchange fan 132, and discharged outside the apparatus.

  Water droplets such as rainwater may enter the heat exchanger chamber 130. When a water droplet falls on the ventilation port unit 10, the water droplet is received by the upper surface and the side surface of the upper cover 50, and therefore does not enter the central chamber 11 through the air passage 12. Further, since the pedestal screw portion 91 is provided in the central chamber 11, no water droplets are applied to the pedestal screw portion 91. Accordingly, water does not enter the machine chamber 120 from the portion through which the screw 81 passes. Further, since the horizontal plate frame portion 30 is tightly fixed to the upper surface of the partition plate 110 via the sealing material 83, water enters the machine chamber 120 from the gap between the horizontal plate frame portion 30 and the upper surface of the partition plate 110. Nor.

  Also, with respect to the cover screw portion 92, the upper vertical wall 41a functions as a water intrusion prevention wall, so that water does not enter the central chamber 11 from the portion through which the screw 82 passes. In other words, since the height position of the tip of the upper vertical wall 41a is higher than the position where the support portion 42 and the through hole 75 are in contact with each other, water enters the through hole 75 and travels through the upper surface 42a of the support portion 42. However, the water cannot get over the upper vertical wall 41 a and falls from the side surface of the support portion 42.

  According to the outdoor unit 1 of the air conditioner of the present embodiment described above, the pedestal screw portion 91 of the ventilation port unit 10 is provided so as to face the inside of the central room 11, and therefore the pedestal screw portion 91 needs to be subjected to a caulking process. There is no. Further, the cover screw portion 92 that fixes the upper cover 50 to the lower pedestal 20 also enters the through hole 75 because the upper vertical wall 41a extending to a position higher than the through hole 75 is formed on the lower pedestal 20. The entry of water into the central room 11 is prevented. Therefore, it is not necessary to perform a caulking process on the cover screw portion 92. As a result, no coking process is required, and the cost can be reduced. Further, the sealing performance of the ventilation port unit 10 can be improved. Moreover, since the upper vertical wall 41a functions not only as a water intrusion prevention function but also as a guide piece when the upper cover 50 is assembled to the lower pedestal 20, positioning of the upper cover 50 is facilitated. As a comparative example, in the vent unit 200 of the conventional device, when the upper cover 220 is assembled to the lower pedestal 210, the upper cover 220 is arranged such that the positions of the four through holes 224 are aligned with the screw holes 215 of the support pillar 214, respectively. Is difficult to assemble compared to the present embodiment.

  Although the outdoor unit of the air conditioner according to the present embodiment has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the object of the present invention.

  For example, as shown in FIG. 6, the structure which changed the attachment position of the upper cover 50 and the lower base 20 may be sufficient. The ventilation port unit 10 ′ is formed so as to extend outward to a position where the support portion 42 ′ contacts the lower side wall 73 of the upper cover 50, and a screw hole 43 ′ is horizontally formed in the support portion 42 ′. Is formed. The screw hole 43 ′ opens on the outer surface 42 b of the support portion 42 ′. A through hole 75 ′ for fixing the upper cover 50 to the lower pedestal 20 is formed in the lower side wall 73 of the upper cover 50. The through hole 75 ′ is provided at a position that aligns with the screw hole 43 ′ when the middle horizontal placement wall 72 a of the upper cover 50 is placed on the support portion 42 ′. In the state where the middle horizontal placement wall 72a is placed on the support portion 42 ', the upper cover 50 is screwed into the screw hole 43' by inserting and tightening the screw 82 through the through hole 75 '. The upper cover 50 is supported and fixed to the support portion 42 ′ of the lower pedestal 20.

  In this modification, the outer surface 42b of the support portion 42 ′ extending to a position higher than the through hole 75 ′ (a position higher than the upper end of the through hole 75 ′) serves as a wall and enters the through hole 75 ′. Prevents water from entering the central room 11. That is, the upper portion of the outer surface 42b of the support portion 42 'that contacts the through hole 75' prevents water that has entered the through hole 75 'from being transmitted to the upper surface 42a' of the support portion 42 '. Therefore, in this modification, the upper vertical wall 41a of the embodiment may not be formed. Thereby, even in the modified example, it is not necessary to perform the caulking process on the cover screw portion 92 '.

  Further, the present invention is not limited to the one that does not require any coking process, and only the caulking process of the base screw portion 91 that fixes the lower base 20 to the partition plate 110 may be unnecessary. For example, the structure of the pedestal screw part that fixes the lower pedestal 20 to the partition plate 110 may be the same as that of the embodiment, and the structure of attaching the upper cover 50 to the lower pedestal 20 may be the same as the conventional apparatus. Even in this case, the number of coking processes can be reduced as compared with the conventional apparatus.

  In addition, the ventilation port units 10 and 10 'of the present embodiment and the modified example are formed in a quadrangle in a plan view, but are not limited to a quadrangle, and may be other polygons, circles, ellipses, and the like. Good. In the present embodiment, the air passage 12 is formed around the central room 1, but the air passage is not limited to the entire circumference of the central room, and is formed only on a specific side surface of the central room. It may be done.

  DESCRIPTION OF SYMBOLS 1 ... Outdoor unit 10,10 '... Ventilation opening unit, 11 ... Center room, 12 ... Ventilation channel, 20 ... Lower base, 30 ... Horizontal plate frame part, 31 ... Opening, 32 ... Through hole, 40 ... Vertical frame part 41 ... vertical wall, 41a ... upper vertical wall, 42, 42 '... support portion, 42a, 42a' ... upper surface, 42b ... outer side surface, 43, 43 '... screw hole, 50 ... upper cover, 60 ... upper surface cover portion , 70 ... Side cover part, 71 ... Upper side wall, 71a ... Upper concave side wall, 72 ... Middle horizontal wall, 72a ... Middle horizontal mounting wall, 73 ... Lower side wall, 74 ... Connection concave part, 75, 75 ' DESCRIPTION OF SYMBOLS ... Through-hole, 81 ... Screw, 82 ... Screw, 83 ... Sealing material, 91 ... Base screw part, 92 ... Cover screw part, 100 ... Outdoor unit, 101 ... Main body casing, 110 ... Partition plate, 111 ... Opening for ventilation, 113 ... through-hole, 120 ... machine room, 130 ... heat exchanger room.

Claims (3)

The main casing is divided into upper and lower parts by a partition plate, and a machine room in which a compressor driven by an engine is arranged in the lower stage and a heat exchanger room in which a heat exchanger and a heat exchange fan are arranged in the upper stage are formed. In addition, the partition plate is connected to the machine room and the heat exchanger room to release hot air in the machine room to the heat exchanger room, while water from the heat exchanger room to the machine room is released. In the outdoor unit of an air conditioner equipped with a vent unit to prevent intrusion,
The vent unit is
A horizontal plate frame that surrounds the ventilation opening formed in the partition plate and is tightly fixed to the upper surface of the partition plate by a pedestal fixing screw; and a vertical wall that stands upward from the horizontal plate frame portion. A lower pedestal integrally formed with a cylindrical vertical frame portion surrounding the ventilation opening;
An upper cover fixed to the lower pedestal so as to be able to ventilate at least a range surrounded by the vertical wall of the vertical frame portion from above the lower pedestal;
The pedestal fixing screw is provided through the horizontal plate frame part and the partition plate at a position facing a room covered by the upper cover and surrounded by the vertical frame part of the lower pedestal. Air conditioner outdoor unit.   The lower pedestal is formed with a support portion for supporting and fixing the upper cover in the vertical frame portion, and the upper cover is fixed by an upper cover fixing screw in the support portion, and the upper cover fixing screw is 2. The wall according to claim 1, further comprising a wall extending to a position higher than a through hole penetrating the upper cover, wherein the wall prevents water that has entered from the through hole from entering the room. Air conditioner outdoor unit. The lower pedestal is formed with a support portion protruding outside the room at an intermediate position in the height direction of the vertical frame portion,
The upper cover includes a plate-like upper surface cover portion that covers a range wider than the range surrounded by the vertical wall of the vertical frame portion from above, and extends downward integrally from the periphery of the upper surface cover portion. And a plate-like side surface cover portion that forms a ventilation path between the side surface portion and the through hole formed on the upper surface of the support portion at an intermediate position in the height direction of the side surface cover portion. The fixed mounting plane is formed, the upper cover fixing screw is inserted into the through hole, and is screwed and fixed to the support portion on the mounting plane. Air conditioner outdoor unit.

Images