JP2016080242A - Outdoor unit of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an outdoor unit of an air conditioner that can prevent raindrops and dust from entering a housing while improving cooling effect on an electrical part by letting outside air flow in the housing.SOLUTION: An air conditioner is provided with a lower rib (first shield part) 69 which closes a gap between a cover 60 and a shield plate 71 below an air intake 64; a shield part (second shield part) 72 which closes a gap between the shield plate 61 and a housing 11 below an air hole 54; and a shield part (third shield part) 73 which closes a gap between the cover 60 and the housing 11 above an upper end of the shield plate 71, an air current flowing in from the intake hole 64 being bent downward between an upper end of the shield plate 61 and the third shield part 73 after rising along the shield plate 61, and then moving down along the shield plate 61 to be guided to the air hole 54.SELECTED DRAWING: Figure 4

Description

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

  A conventional outdoor unit of an air conditioner is disclosed in Patent Document 1. This outdoor unit incorporates a compressor, a heat exchanger, a blower, and an electrical component in a casing. The electrical component has a circuit board and is electrically connected to the compressor and the blower. A pipe connecting part for connecting a refrigerant pipe for air conditioning is provided on one side of the casing, and the side of the casing including the pipe connecting part is covered with a resin cover. An outlet for drawing out the refrigerant pipe connected to the pipe connecting portion to the outside of the cover is opened in the lower part on the back side of the cover.

  Further, in order to improve the cooling effect of the electrical component built in the casing, a vent hole is provided on the side surface of the casing, and an intake hole is provided on the cover. A shielding plate is provided between the ventilation hole and the intake hole, and the airflow flowing from the intake hole descends along the outer surface of the shielding plate and then rises along the inner surface of the shielding plate and flows into the ventilation hole. Further, a concave portion for a handle is provided in the upper portion of the cover. The cover is fixed to the housing by inserting and sliding engagement claws provided on the inner surface into slit-like engagement holes formed on the side surface of the housing.

Japanese Patent No. 4391368

  According to the conventional outdoor unit described above, when strong wind pressure is applied to the outlet, raindrops and dust that have entered the cover from the outlet enter the airflow and enter the housing through the vents, and the electrical system of the electrical component There was a problem that broke down.

  Also, when carrying the outdoor unit by inserting fingers into the handle recess provided at the top of the cover, the cover is deformed by the weight of the outdoor unit, creating a gap between the cover and the housing, raindrops and There was a problem that dust entered the cover.

  Further, when the cover is slid after the engaging claw is inserted into the engaging hole, a gap is generated in the engaging hole, and noise inside the housing leaks to the outside through the gap.

  In view of the above problems, the present invention provides an outdoor unit for an air conditioner capable of preventing raindrops and dust from entering a housing while allowing outside air to flow into the housing to improve the cooling effect of the electrical component. With the goal.

  In addition, in view of the above problems, the present invention provides an outdoor unit for an air conditioner in which a recess for a handle provided on an upper part of a cover fixed to one side surface of a housing is difficult to be deformed during transportation of the outdoor unit. With the goal.

  Another object of the present invention is to provide an outdoor unit for an air conditioner that prevents noise inside the housing from leaking to the outside through a gap in the engagement hole.

  To achieve the above object, the present invention provides an air conditioner in which a compressor, a heat exchanger, a blower, and an electrical component having a circuit board connected to the compressor and the blower are arranged in a casing. In the outdoor unit, a pipe connection part that connects a refrigerant pipe to one side surface of the housing and a vent hole that opens above the pipe connection part are formed, and the vent hole and the pipe connection part are covered. A cover in which an intake hole and an outlet of the refrigerant pipe are opened; and a shielding plate standing between the vent hole and the intake hole and having an upper end disposed above the vent hole and the intake hole. A first shielding portion that blocks between the cover and the shielding plate below the intake hole, a second shielding portion that blocks between the shielding plate and the casing below the ventilation hole, and the shielding. A third shielding portion for closing a space between the cover and the housing above the upper end of the plate; Then, after the airflow flowing in from the intake hole rises along the shielding plate, it bends downward between the upper end of the shielding plate and the third shielding portion and descends along the shielding plate to pass the passage. It is characterized by being guided to the pores.

  According to this configuration, raindrops and dust that have entered the cover from the outlet are blocked by the first, second, and third shielding portions and do not reach the vent hole.

  Further, the present invention provides an air conditioner outdoor unit configured as described above, wherein a guide portion is formed by a rib protruding in a U shape that opens downward from the inner surface of the cover, and guides the airflow flowing in from the intake hole downward. The airflow after flowing out of the guide part rises along the shielding plate.

  In the outdoor unit for an air conditioner having the above-described configuration, the present invention is characterized in that a wall surface of the guide portion facing a side surface of the housing is formed by the shielding plate.

  In the outdoor unit of the air conditioner having the above-described configuration, the present invention includes a metal flameproof plate that is disposed on the inner surface side of the cover and covers the pipe connection portion, and the shielding plate is integrated with the flameproof plate. It is characterized by being formed.

  Further, the present invention is an air conditioner outdoor unit configured as described above, wherein the housing includes a heat exchanger chamber in which the blower and the heat exchanger are disposed via a partition wall, the electrical component, and the compressor. The heat exchanger chamber and the machine room communicate with each other through a communication hole provided in the electrical equipment section.

  In order to achieve the above object, according to the present invention, in an outdoor unit of an air conditioner in which a compressor, a heat exchanger, and a blower are built in a housing, an opening is provided in an upper portion of one side surface of the housing. In addition, a pipe connecting part for connecting the refrigerant pipe to the lower part is arranged, and a concave part for a handle provided in a cover covering the pipe connecting part is inserted into the opening part, and an upper wall of the opening part is an outer wall of the concave part It is characterized by abutting on.

  According to this configuration, when a finger is inserted into the recess and the outdoor unit is lifted, the upper wall of the opening of the housing is supported by the finger from the inside of the recess.

  In the outdoor unit for an air conditioner having the above-described configuration, the upper wall of the opening forms a bent portion inside the housing, and the bent portion and the outer wall of the recess are in surface contact with each other. It is characterized by being.

  In the outdoor unit for an air conditioner configured as described above, the present invention is characterized in that the bent portion is inclined upward toward the inside of the housing.

  In the outdoor unit of the air conditioner configured as described above, the cover may be fixed to the housing by sliding upward after inserting the recess into the opening.

  In the outdoor unit of the air conditioner having the above-described configuration, the wiring inside the housing is drawn out between the housing and the cover through a gap between the opening and the recess. Yes.

  In order to achieve the above object, the present invention provides an outdoor unit having a compressor, a heat exchanger, and a blower built in a housing, and is connected to a refrigerant pipe arranged on one side surface of the housing. And a cover that covers the pipe connection portion, and the cover is fixed to the casing by inserting and sliding an engaging claw provided on the inner surface into a slit-like engaging hole formed on a side surface of the casing. The inner surface of the cover is formed with an annular outer peripheral rib arranged on the peripheral portion and contacting the casing, and a shielding rib protruding at the same height as the outer peripheral rib, and the cover is fixed to the cover It is characterized in that it surrounds the periphery of the engagement hole when it is done.

  According to this configuration, the airflow flowing between the side surface of the housing and the inner surface of the cover through the gap of the engagement hole generated when the engagement claw is inserted and slid into the engagement hole is blocked by the shielding portion, Do not circulate between the side of the housing and the inner surface of the cover.

  Moreover, the present invention is characterized in that in the outdoor unit for an air conditioner having the above-described configuration, a part of the shielding portion is formed by the outer peripheral rib.

  According to the outdoor unit of an air conditioner of the present invention, the upper end of the shielding plate is disposed above the ventilation hole and the intake hole, and the space between the cover and the shielding plate is blocked by the first shielding portion, and the shielding plate and the housing are arranged. The space between the cover and the housing is closed by the third shielding portion above the upper end of the shielding plate. Then, after the airflow flowing in from the intake hole rises along the shielding plate, it is bent downward between the upper end of the shielding plate and the third shielding portion, descends along the shielding plate, and is guided to the vent hole. Accordingly, it is possible to prevent water droplets and dust that have entered the cover from the outlet from entering the housing through the vent hole.

  Moreover, according to the outdoor unit of the air conditioner of the present invention, when a finger is inserted into the recess and the outdoor unit is lifted, the upper wall of the opening of the housing is supported by the finger from the inside of the recess. Thereby, the weight of the outdoor unit applied to the cover is reduced, and deformation of the cover can be prevented.

  Further, according to the outdoor unit of the air conditioner of the present invention, the air flows between the side surface of the housing and the inner surface of the cover through the gap of the engagement hole that is generated when the engagement claw is inserted into the engagement hole and slid. The airflow is blocked by the shielding portion, and does not flow between the side surface of the housing and the inner surface of the cover. Thereby, generation | occurrence | production of noise can be prevented.

The front view of the outdoor unit which concerns on 1st Embodiment of this invention. The perspective view which shows the right side part from the back side of the outdoor unit which concerns on 1st Embodiment of this invention. The perspective view which shows the left side part from the back side of the outdoor unit which concerns on 1st Embodiment of this invention. The disassembled perspective view of the outdoor unit which concerns on 1st Embodiment of this invention. The disassembled perspective view which shows a part of right side part of the outdoor unit which concerns on 1st Embodiment of this invention from the right side. The disassembled perspective view which shows a part of right side part of the outdoor unit which concerns on 1st Embodiment of this invention from the left side. The perspective view which shows the inner surface of the cover which concerns on 1st Embodiment of this invention. The perspective view which shows the inner surface of the cover which concerns on 1st Embodiment of this invention. Explanatory drawing explaining the air flow path of the outdoor unit which concerns on 1st Embodiment of this invention. Explanatory drawing explaining the air flow path of the outdoor unit which concerns on 1st Embodiment of this invention. The perspective view which expands and shows the engagement nail | claw which concerns on 1st Embodiment of this invention. The top view which expands and shows the engagement nail | claw which concerns on 1st Embodiment of this invention. Sectional drawing which shows the state which inserted the engagement nail | claw which concerns on 1st Embodiment of this invention in the engagement hole. The front sectional view of the crevice for handles in the state where the cover concerning a 1st embodiment of the present invention was fixed to the case. The perspective view which shows the recessed part for handles which concerns on 1st Embodiment of this invention. The perspective view which shows the recessed part for handles which concerns on 1st Embodiment of this invention from the back side. Explanatory drawing explaining the air flow path of the outdoor unit which concerns on 2nd Embodiment of this invention. Explanatory drawing explaining the air flow path of the outdoor unit which concerns on 3rd Embodiment of this invention.

<First Embodiment>
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of the outdoor unit 10, and FIGS. 2 and 3 are perspective views showing the right side and the left side of the outdoor unit 10 from the back side. The outdoor unit 10 includes a rectangular parallelepiped casing 11, and the housing 11 is provided with a top plate 11U on the top and a bottom plate 11D on the bottom. A front plate 11F is disposed on the front surface of the housing 11 and a rear plate 11B is disposed on the rear side. A left side plate 11L is arranged on the left side, and a right side plate 11R is arranged on the right side. The left side plate 11L and the right side plate 11R are formed in an L shape when viewed from above, and a part thereof is bent to the back side.

  An exhaust port 12 is opened at the center of the front plate 11F of the housing 11, and a circular grill 12a is attached to the exhaust port 12. A rear intake port 11BS is opened in the back plate 11B, and a left side intake port 11LS is opened in the left side plate 11L. Further, the right side surface plate 11R has a right side surface intake port 11RS opened in a part on the back side. The left side intake port 11LS and the right side intake port 11RS are formed in a lattice shape. In addition, concave portions 63R and 63L for handles are provided on the upper portions of the right side plate 11R and the left side plate 11L, respectively.

  FIG. 4 is an exploded perspective view of the outdoor unit 10, and FIGS. 5 and 6 are exploded perspective views showing a part of the right side portion of the outdoor unit 10. 5 and 6, the blower 30 and the compressor 40 are not shown. A heat exchanger 24 is disposed on the back side inside the housing 11. Both ends of the heat exchanger 24 are bent and formed in a substantially U shape (may be substantially L shape) when viewed from the upper surface. The heat exchanger 24 is arranged to face the left side inlet port 11LS, the rear side inlet port 11BS, and the right side side inlet port 11RS, and the housing 11 via the left side inlet port 11LS, the rear side inlet port 11BS, and the right side inlet port 11RS. Exposed outside.

  A partition wall 20 for separating and partitioning the heat exchanger 24 is erected from the bottom plate 11D inside the housing 11. The partition wall 20 is formed in an L shape when viewed from above, and partitions between the blower 30 and the compressor 40 and wraps around the back side of the compressor 40 to partition between the heat exchanger 24 and the compressor 40. . Thereby, the inside of the housing | casing 11 is divided into the heat exchanger room 21 and the machine room 22 via the partition wall 20, the heat exchanger room 21 has the heat exchanger 24 arranged on the back side, and the air blower 30 is on the front side. Is arranged.

  When the blower 30 is driven, the outside air flows into the heat exchanger chamber 21 through the left side intake port 11LS, the rear intake port 11BS, and the right side intake port 11RS by the suction force. The inflowing outside air is heat-exchanged by the heat exchanger 24, flows through the heat exchanger chamber 21, and is blown out from the exhaust port 12.

  Moreover, the machine room 22 is partitioned into upper and lower parts, an electrical component 50 is arranged at the upper part, and a compressor 40 is arranged at the lower part. The electrical component 50 has a circuit board (not shown) and is electrically connected to the blower 30 and the compressor 40. The electrical component unit 50 controls the operation of the outdoor unit 10. Further, a terminal portion 55 for drawing a power supply line and a control line from the outside of the outdoor unit 1 to the electrical component section 50 is disposed on the outer surface of the right side plate 11R.

  A heat sink (not shown) is provided on the bottom surface of the electrical unit 50. The heat sink includes fins 51 on the heat exchanger chamber 21 side, and the fins 51 are exposed in the heat exchanger chamber 21. As a result, the fins 51 are cooled by the airflow flowing through the heat exchanger chamber 21. The heat-generating component mounted on the circuit board is cooled via the heat sink and fins 51.

  A vent hole 54 is provided in the right side plate 11 </ b> R that forms the side wall of the machine room 22. Further, the electrical component section 50 is provided with a communication hole (not shown) that allows the heat exchanger chamber 21 and the machine chamber 22 to communicate with each other. Accordingly, when the blower 30 is driven, the air in the machine room 22 is drawn into the heat exchanger room 21 through the communication hole. With this suction force, outside air can be drawn into the machine room 22 through the vent hole 54 to improve the cooling effect of the electrical component 50.

  An opening 53 is opened in the upper part of the outer surface of the right side plate 11R, and a pipe connection part 52 for connecting two refrigerant pipes (not shown) is arranged in the lower part of the outer surface. A vent hole 54 is disposed between the opening 53 and the pipe connection portion 52. The opening 53, the pipe connection portion 52, and the vent hole 54 are covered with a resin cover 60. At this time, the outer wall 63RO of the recess 63R for the handle is inserted into the opening 53.

  The pipe connection part 52 has a two-way valve 52a and a three-way valve 52b, and a refrigerant pipe is connected through the two-way valve 52a and the three-way valve 52b. Liquid refrigerant flows through the refrigerant pipe connected to the two-way valve 52a during the cooling operation. On the other hand, gaseous refrigerant flows through the refrigerant pipe connected to the three-way valve 52b during the cooling operation.

  7 and 8 are perspective views showing the inner surface side of the cover 60, and FIG. 8 shows a state in which the flameproof plate 70 is inserted. A bulge portion 65 swelled to cover the two-way valve 52a and the three-way valve 52b is formed at the lower portion of the cover 60, and an outlet 65a is opened on the back side of the bulge portion 65. The refrigerant pipe connected to the pipe connection part 52 and the power supply line and the control line connected to the terminal part 55 are drawn out of the cover 60 through the outlet 65a. A concave portion 63R for a handle is provided in the upper portion of the cover 60, and an intake hole 64 communicating with the vent hole 54 is provided between the concave portion 63R and the bulging portion 65.

  A metal flameproof plate 70 is disposed between the right side plate 11 </ b> R and the cover 60. A bulging portion 75 bulging to cover the pipe connecting portion 52 is formed at the lower portion of the flameproof plate 70. The bulging portion 75 of the flameproof plate 70 is inserted inside the bulging portion 65 of the cover 60. The flameproof plate 61 prevents a flame from entering the housing 11 from the pipe connection portion 52 when a fire occurs around the outdoor unit 10.

  A shielding plate 71 is formed integrally with the flameproof plate 70 on the flameproof plate 70. The shield plate 71 is erected between the vent hole 54 and the intake hole 64, and the upper end of the shield plate 71 is located above the vent hole 54 and the intake hole 64.

  An upper rib 67 is provided above the intake hole 64 on the inner surface side of the cover 60. At both ends of the upper rib 67, side ribs 68 extending downward through the sides of the intake holes 64 are provided, and the upper rib 67 and the side ribs 68 are formed in a U-shape with the lower part opened. A lower rib (first shielding part) 69 is provided below the side rib 68. The upper rib 67, the side rib 68, and the lower rib 69 protrude from the inner surface of the cover 60 and abut on the outer surface of the shielding plate 71.

  Thereby, the guide part 90 (refer FIG. 9) which uses the upper rib 67 as an upper wall, uses the side rib 68 as a side wall, and uses a part of outer surface of the shielding board 71 as a surrounding wall is formed. The guide part 90 guides the airflow flowing in from the intake hole 64 to the lower side of the shielding plate 71. At this time, since the wall surface of the guide portion 90 is formed by the shielding plate 72, the distance between the shielding plate 72 and the inner surface of the cover 60 can be shortened. Therefore, the outdoor unit 10 can be downsized. When the flameproof plate 70 and the shielding plate 71 are integrally formed and the cover 60 and the shielding plate 61 are blocked by the flameproof plate 70, the lower rib 69 may be omitted. .

  A shielding portion (second shielding portion) 72 that closes the space between the shielding plate 71 and the right side plate 11 </ b> R is provided below the vent hole 54. The shielding part 72 prevents raindrops and dust flowing into the cover 60 from the outlet 65 a from entering the vent hole 54. Further, on the inner surface side of the cover 60, a rib (third shielding portion) 73 is provided that is disposed above the upper end of the shielding plate 71 and closes the space between the cover 60 and the right side surface plate 11R. The rib 73 prevents raindrops and dust flowing into the cover 60 from entering the housing 11 through the opening 53.

  FIGS. 9 and 10 are explanatory views for explaining the air flow path A that connects the vent hole 54 and the intake hole 64, and FIG. 9 is a plan view of the cover 60 showing the intake hole 64 from the inner surface side. FIG. 10 is a front sectional view of the air flow path A in a state where the cover 60 is fixed to the right side plate 11R. The airflow that has entered the air flow path A from the intake hole 64 descends along the guide portion 90. The airflow descending the guide portion 90 and flowing out of the guide portion 90 is shielded by the lower rib 69 and flows sideways along the lower rib 69. The airflow that has flowed sideways wraps around the lower ends of the side ribs 68 and rises outside the side ribs 68 along the outer surface of the shielding plate 71.

  The airflow rising outside the side ribs 68 bends between the upper end of the shielding plate 71 and the rib (third shielding portion) 73 and descends along the inside of the shielding plate 71, via the vent hole 54. Flows into the body 11. By bending the air channel A up and down a plurality of times, water droplets that enter the vent hole 54 from the intake hole 64 can be further reduced.

  11 and 12 are an enlarged perspective view and a top view of the engaging claw 66, and FIG. 13 is a cross-sectional view showing a state in which the engaging claw 66 is inserted into the engaging hole 56. Engaging claws 66 are provided on the peripheral edge of the inner surface of the cover 60. After the engaging claws 66 are inserted into the slit-like engaging holes 56 provided on the right side plate 11R and the cover 60 is slid upward, The cover 60 is fixed to the right side plate 11R by screwing (see FIGS. 5 and 6).

  At this time, an annular outer peripheral rib 66a (see FIGS. 7 and 8) is provided on the inner surface of the cover 60 so as to protrude from the peripheral portion, and the outer peripheral rib 66a contacts the right side plate 11R. A shielding rib 66b that protrudes at the same height as the outer peripheral rib 66a is formed around the engaging claw 66, and a part of the shielding rib 66b is formed by the outer peripheral rib 66a.

  When the cover 60 is fixed to the right side surface plate 11 </ b> R, the shielding rib 66 b is arranged around the engagement hole 56. As a result, noise (arrow N) leaking to the outside through the clearance S1 of the engagement hole 56 generated when the engagement claw 66 is inserted into the engagement hole 56 from the inside of the housing 11 and then slid is caused by the shielding rib 66b. Blocked. Therefore, it is possible to prevent noise generated during driving of the compressor 40 and the like generated inside the housing 11 from leaking outside through the gap S1.

  A concave thin-walled portion 66c is provided between the engaging claw 66 and the shielding rib 66b to prevent the occurrence of sink marks (dents) during molding.

  FIG. 14 is a front sectional view of the recess 63R in a state where the cover 60 is fixed to the right side plate 11R. When the cover 60 is fixed to the right side plate 11R, the outer wall 63RO of the recess 63 for the handle is inserted into the opening 53 formed in the right side plate 11R. At this time, the outer wall 63RO of the recess 63R abuts on the upper wall 53a of the opening 53. Thereby, when inserting a finger into the recess 63R and lifting the outdoor unit 10, the upper wall 53a of the opening 53 is supported by the finger. Therefore, the weight of the outdoor unit 10 applied to the cover 60 is reduced, and deformation of the cover 60 can be prevented.

  The upper wall 53a of the opening 53 forms a bent portion 53b bent inside the housing 11, and the bent portion 53a and the outer wall 63RO of the concave portion 63R are in surface contact. Thereby, when the outdoor unit 10 is lifted, the upper wall 53a is stably supported, and the deformation of the cover 60 can be further prevented. Further, the bent portion 53 a is inclined upward toward the inside of the housing 11. Thereby, when a finger is inserted into the recess 63R, the finger is easily caught in the recess 63R, and convenience during transportation is improved.

  The opening 53 is greatly open in the vertical direction with respect to the outer wall 63RO of the recess 63R. When the cover 60 is slid upward and fixed to the right side plate 11R, the lower wall 53c of the opening 53 and the recess 63R A gap S2 is generated between the outer wall 63RO and the outer wall 63RO. Thereby, a power supply line and a control line can be pulled out from the electrical equipment unit 50 to the terminal unit 55 through the gap S2.

  15 and 16 are perspective views of a concave portion 63L for a handle provided on the left side plate 11L. The recess 63L is made of resin, and is inserted into and fixed to an opening (not shown) formed in the upper portion of the left side plate 11L. A plurality of slit-like through holes 63LH2 extending in the vertical direction are arranged in parallel on the peripheral wall of the recess 63L. A plurality of slit-like through holes 63LH1 extending in the front-rear direction are arranged in parallel on the bottom wall of the recess 63L. As a result, outside air is sucked into the housing 11 through the through holes 63LH1 and 63LH2. Therefore, the heat exchange rate of the heat exchanger 24 can be improved.

  The through holes 63LH1 and 63LH2 are formed continuously, and reinforcing ribs are provided around the back side of the through holes 63LH1 and 63LH2 to reinforce the peripheral wall and the bottom wall of the recess 63L. Thereby, it is possible to prevent the recess 63L from being deformed when the outdoor unit 10 is lifted.

  According to the present embodiment, the upper end of the shielding plate 71 is disposed above the vent hole 54 and the intake hole 64, and the space between the cover 60 and the shielding plate 71 is blocked by the lower rib (first shielding portion) to shield it. The shield 71 (second shield) is closed between the plate 71 and the housing 11. Then, after the airflow flowing in from the intake hole 64 rises along the shielding plate 71, it is bent downward between the upper end of the shielding plate 71 and the rib (third shielding portion) 73 and descends along the shielding plate 71. Then, it is guided to the vent hole 54. Thereby, it is possible to prevent water droplets and dust from entering the vent hole 54 from the outlet 65a.

In addition, since the guide portion that guides the airflow flowing in from the intake hole 64 downward is formed by the rib of the cover 60, the air flow path A is bent a plurality of times up and down, and more water droplets entering the vent hole 54 from the intake hole 64 are generated. Can be reduced.

  Moreover, since the wall surface of the guide part facing the side surface of the housing 11 is formed by the shielding plate 72, the distance between the shielding plate 72 and the inner surface of the cover 60 can be shortened. Therefore, the outdoor unit 10 can be downsized.

  In addition, a metal flameproof plate 70 that is disposed on the inner surface side of the cover 60 and covers the pipe connection portion 52 is provided, and the shielding plate 61 is formed integrally with the flameproof plate 70, thereby reducing the number of parts of the shielding plate 61. The cost can be reduced by reducing.

  Further, by connecting the heat exchanger chamber 21 and the machine chamber 22 through a communication hole (not shown) provided in the electrical component section 50, when the blower 30 is driven, the air in the machine chamber 22 is passed through the communication hole. It is drawn into the heat exchanger chamber 21. With this suction force, outside air can be drawn into the machine chamber 22 through the intake holes 64 and the vent holes 54 to improve the cooling effect inside the electrical component 50.

  Further, a recess 63R for a handle provided in the cover 60 is inserted into the opening 11RS, and the upper wall 53a of the opening 11RS abuts on the outer wall 63RO of the recess 63R, so that a finger is inserted into the recess 63R and the outdoor. When the machine 10 is lifted, the upper wall 53a of the opening 53 is supported by fingers. Therefore, the weight of the outdoor unit 10 applied to the cover 60 is reduced, and deformation of the cover 60 can be prevented.

  The upper wall 53a of the opening 53 forms a bent portion 53b that is bent inside the housing 11, and the bent portion 53b and the outer wall 63RO of the recess 63R are in surface contact. Thereby, when the outdoor unit 10 is lifted, the upper wall 53a is stably supported, and the deformation of the cover 60 can be further prevented.

  Moreover, since the bending part 53b inclines upward toward the inner side of the housing 11, when a finger is inserted into the recessed part 63R, the finger is easily caught in the recessed part 63R, and convenience during transportation is improved.

  The cover 60 is fixed to the housing 11 by inserting an engagement claw 66 provided on the inner surface into a slit-like engagement hole 56 formed on the side surface of the housing 11, and is fixed to the housing 11. The outer peripheral rib 66a and the shielding rib 66b projecting at substantially the same height as the outer peripheral rib 66a are formed, and the shielding rib 66b is arranged around the engagement hole 56 when the cover 60 is fixed. Thereby, noise (arrow N) leaking outside through the clearance S1 of the engagement hole 56 is blocked by the shielding rib 66b. Therefore, it is possible to prevent noise generated during driving of the compressor 40 and the like generated inside the housing 11 from leaking outside through the gap S1.

Second Embodiment
FIG. 17 is an explanatory view illustrating the air flow path A of the outdoor unit 10 according to the second embodiment. In addition, the same part as 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits description. In contrast to the first embodiment, in the second embodiment, the upper rib 67 is not in contact with the shielding plate 71, and the outer surface of the shielding plate 71 does not form the guide portion 90.

  Specifically, a guide portion 90 is formed by a guide plate 91 that extends downward from the tip of the upper rib 67 and whose lower end is positioned below the intake hole 64. As a result, the airflow flowing in from the intake hole 64 descends along the outer surface of the guide plate 91, enters the inner surface of the guide plate 91 below the lower end of the guide plate 91, and rises along the outer surface of the shielding plate 71.

<Third Embodiment>
FIG. 18 is an explanatory view illustrating the air flow path A of the outdoor unit 10 according to the third embodiment. In addition, the same part as 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits description. In contrast to the first embodiment, in the third embodiment, the shielding portion 72 is formed by bending the flameproof plate 70. Thereby, the number of parts of the shielding part 72 can be reduced and cost reduction can be aimed at.

  The present invention can be used for an outdoor unit of a separate type air conditioner.

DESCRIPTION OF SYMBOLS 10 Outdoor unit 11 Housing | casing 11R Right side plate 12 Exhaust port 12a Grill 14 Outdoor heat exchanger 16 Outdoor fan 20 Partition wall 21 Heat exchanger room 22 Machine room 24 Heat exchanger 30 Blower 40 Compressor 41 Drain port 50 Electric part 51 Fin 52 Piping connection part 52a Two-way valve 52b Three-way valve 53 Opening part 53a Upper wall 53b Bending part 54 Vent hole 55 Terminal part 56 Engagement hole 60 Cover 63R Recess 63RO Outer wall 64 Inlet hole 65 Swelling part 65a Outlet 66 Engagement Claw 66a Peripheral rib 66b Shielding part 66c Thin part 67 Upper rib 68 Side rib 69 Lower rib (first shielding part)
70 Flameproof plate 71 Shielding plate 72 Shielding part (second shielding part)
73 Rib (3rd shielding part)
90 Guide

Claims (12)

  In an outdoor unit of an air conditioner in which a compressor, a heat exchanger, a blower, and an electrical component having a circuit board connected to the compressor and the blower are arranged in a housing, one side surface of the housing Forming a pipe connection part for connecting a refrigerant pipe to the pipe and a vent hole opening above the pipe connection part, covering the vent hole and the pipe connection part, and providing an intake hole and an outlet for the refrigerant pipe. An opening cover; a shielding plate standing between the vent hole and the intake hole and having an upper end disposed above the vent hole and the intake hole; and the cover and the lower part below the intake hole A first shielding portion for closing between the shielding plate, a second shielding portion for closing between the shielding plate and the housing below the vent hole, and the cover and the housing above the upper end of the shielding plate. A third shielding portion that closes the space between the air intake holes, After rising along the shielding plate, the air is bent downward between the upper end of the shielding plate and the third shielding portion, descends along the shielding plate, and is guided to the vent hole. Harmonic outdoor unit.   A guide portion is formed by a rib projecting in a U-shape that opens downward from the inner surface of the cover, and guides the airflow flowing in from the intake hole downward, and the airflow after flowing out of the guide portion is the shielding plate The outdoor unit for an air conditioner according to claim 1, wherein the outdoor unit rises along   The outdoor unit for an air conditioner according to claim 2, wherein a wall surface of the guide portion facing a side surface of the housing is formed by the shielding plate.   4. A metal flameproof plate that is disposed on an inner surface side of the cover and covers the pipe connecting portion, and the shielding plate is integrally formed with the flameproof plate. The outdoor unit of the air conditioner as described in any one.   The enclosure is partitioned by a partition wall into a heat exchanger chamber in which the blower and the heat exchanger are disposed, and a machine room in which the electrical component and the compressor are disposed, and is provided in the electrical component. The outdoor unit for an air conditioner according to any one of claims 1 to 5, wherein the heat exchanger chamber and the machine chamber communicate with each other through a communication hole.   In an outdoor unit of an air conditioner in which a compressor, a heat exchanger, and a blower are built in a housing, an opening is provided in the upper part of one side of the housing, and a pipe connection part that connects a refrigerant pipe is arranged in the lower part. An outdoor portion of the air conditioner, wherein a recess for a handle provided in a cover that covers the pipe connection portion is inserted into the opening, and an upper wall of the opening abuts against an outer wall of the recess Machine.   The air conditioner according to claim 6, wherein the upper wall of the opening forms a bent portion bent inside the housing, and the bent portion and the outer wall of the concave portion are in surface contact. Outdoor unit.   The outdoor unit of an air conditioner according to claim 7, wherein the bent portion is inclined upward toward the inside of the housing.   The outdoor unit for an air conditioner according to any one of claims 6 to 8, wherein the cover is fixed to the casing by sliding upwards after inserting the recess into the opening.   The air conditioning according to any one of claims 6 to 9, wherein wiring inside the housing is drawn out between the casing and the cover through a gap between the opening and the recess. The outdoor unit of the machine.   An outdoor unit having a compressor, a heat exchanger, and a blower built in the housing, and having a pipe connection portion that is arranged on one side surface of the housing and connects the refrigerant pipe, and a cover that covers the pipe connection portion The cover has an engaging claw provided on the inner surface inserted and slid into a slit-like engaging hole formed on the side surface of the casing, and is fixed to the casing. An annular outer peripheral rib that contacts the housing and a shielding rib that protrudes at the same height as the outer peripheral rib are formed, and the shielding portion surrounds the engagement hole when the cover is fixed. An air conditioner outdoor unit characterized by   The outdoor unit of the air conditioner according to claim 12, wherein a part of the shielding part is formed by the outer peripheral rib.

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