Air conditioner outdoor unit

Abstract

To provide an outdoor unit for an air conditioner capable of reducing ventilation resistance of air to be supplied to an indoor unit.SOLUTION: An air supply device for an outdoor unit (2) of an air conditioner includes: a first casing (401, 415) having a suction port for sucking air, a connection port (45) to which an air supply duct is connected and an air supply path guiding air from the suction port to the connection port (45); a fan (42) provided in the air supply path and blowing out the air sucked from the suction port to the connection port (45); and a heater (41) provided in the air supply path and heating air sucked from the suction port (40). The connection port (45) is disposed on a side surface of the first casing (401, 415). The fan (42) and the heater (41) are controlled by a control section (300).SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present disclosure relates to an outdoor unit of an air conditioner. [Background technology]

[0002] BACKGROUND ART Conventionally, there has been an air conditioner that includes an indoor unit and an outdoor unit, as disclosed in Japanese Patent Laid-Open No. 2014-70814 (Patent Document 1).

[0003] The outdoor unit has a fan that draws in outdoor air and blows it toward the indoor unit. After leaving the outdoor unit, the air blown out from the fan is guided to the indoor unit by an air intake hose.

[0004] One end of the air supply hose is connected to a connection port provided on the side of the outdoor unit, while the other end of the air supply hose is located inside the indoor unit. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-70814 Summary of the Invention [Problem to be solved by the invention]

[0006] In the outdoor unit of the conventional air conditioner, air blown out from the fan is guided to the air supply hose via a duct. This duct has a horizontal duct section and an inclined duct section. The horizontal duct section guides the air from the fan horizontally. Meanwhile, the inclined duct section guides the air that has entered the horizontal duct section diagonally downward to reach the connection port on the side of the outdoor unit.

[0007] Because the duct is formed in such a complex structure, the air flow bends frequently between the fan and the connection port on the side of the outdoor unit, making it difficult for air to flow smoothly from the fan to the connection port on the side of the outdoor unit.

[0008] Therefore, there is still room for improvement in the outdoor unit of the conventional air conditioner described above with respect to the ventilation resistance of the air sent to the indoor unit.

[0009] An object of the present disclosure is to provide an outdoor unit of an air conditioner that can reduce the ventilation resistance of air supplied to the indoor unit. [Means for solving the problem]

[0010] An outdoor unit of an air conditioner according to one aspect of the present disclosure includes: an outdoor air conditioner connected to the indoor unit via a refrigerant pipe and having a control unit; an air supply device connected to the indoor unit via an air supply duct and disposed on the outdoor air conditioner; Equipped with The air supply device is a first casing having an intake port for sucking in air, a connection port to which the air supply duct is connected, and an air supply path for guiding air from the intake port to the connection port; a fan provided in the air supply path and configured to blow air drawn in through the air inlet out to the connection port; a heater provided in the air supply path for heating the air drawn in through the air inlet; and the connection port is disposed on a side surface of the first casing, The fan and the heater are controlled by the control unit.

[0011] According to the above configuration, by arranging the connection port on the side surface of the first casing, air can flow smoothly from the fan to the connection port, thereby reducing ventilation resistance of the air supplied to the indoor unit.

[0012] In one aspect of the present disclosure, an outdoor unit of an air conditioner includes: The fan is disposed downstream of the heater in the air supply path.

[0013] According to the above aspect, by disposing the fan downstream of the heater in the air supply path, condensation on the fan can be suppressed.

[0014] In one aspect of the present disclosure, an outdoor unit of an air conditioner includes: The suction port is provided on a side surface of the first casing.

[0015] According to the above aspect, by providing the intake port on the side surface of the first casing, it is possible to prevent the air supply path from bending in a complex manner.

[0016] In one aspect of the present disclosure, an outdoor unit of an air conditioner includes: The air supply device is a wall portion provided on the upstream side of the heater of the air supply path so as to block a part of the air supply path and to extend upward from a bottom portion of the air supply path; a mesh member provided in a remaining portion of the air supply path upstream of the heater that is not blocked by the wall portion; It has.

[0017] According to the above aspect, the wall portion and the mesh member can prevent foreign matter and the like from entering.

[0018] An outdoor unit of an air conditioner according to one aspect of the present disclosure includes: a cover attached to the outdoor air conditioning device and the air supply device; the outdoor air conditioner includes a second casing and a stop valve disposed on a side surface of the second casing and connected to the refrigerant pipe; The cover covers the suction port and the shut-off valve, and has an opening located below the suction port.

[0019] According to the above aspect, the opening of the cover is located below the intake port of the first casing, so that dust, water, etc. that has flowed in through the opening of the cover can be prevented from entering the second casing through the intake port. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is an external view of an air conditioner according to a first embodiment of the present disclosure. [Figure 2] FIG. 2 is a circuit diagram of the air conditioner. [Figure 3] FIG. 2 is a control block diagram of the outdoor unit of the air conditioner. [Figure 4] FIG. 2 is a control block diagram of an indoor unit of the air conditioner. [Figure 5] FIG. 2 is an external perspective view of the outdoor unit. [Figure 6] FIG. 2 is an exploded perspective view of the outdoor unit. [Figure 7] FIG. 2 is an exploded perspective view of the air supply device of the outdoor unit. [Figure 8] FIG. 2 is a top view of the air supply device. [Figure 9] FIG. 2 is a diagram illustrating an air supply path of the air supply device. [Figure 10] 3 is a diagram illustrating the flow of air near the intake port of the air supply path of the air supply device. FIG. [Figure 11] 10A and 10B are diagrams illustrating the inclination of the flexible hose of the air supply device. [Figure 12] FIG. 10 is an external perspective view of an outdoor unit of an air conditioner according to a second embodiment of the present disclosure. [Figure 13] FIG. [Figure 14] FIG. 4 is an enlarged view of a handle portion of a valve cover of the outdoor unit and its surrounding area. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, embodiments will be described. In the drawings, the same reference numerals represent the same or corresponding parts. Furthermore, dimensions in the drawings, such as length, width, thickness, and depth, have been appropriately changed from the actual scale for clarity and simplification of the drawings, and do not represent actual relative dimensions.

[0022] [First embodiment] FIG. 1 is an external view of an air conditioner according to a first embodiment of the present disclosure.

[0023] The air conditioner is a pair type air conditioner equipped with an indoor unit 1 and an outdoor unit 2. The outdoor unit 2 has an outdoor air conditioning device 3 connected to the indoor unit 1 via refrigerant pipes L4 and L5, and an air supply device 4 connected to the indoor unit 1 via an air supply duct 5.

[0024] Fig. 2 is a circuit diagram of the refrigerant circuit RC provided in the air conditioner. Note that Fig. 2 omits the illustration of a joint 409, a socket 410, and the like, which will be described later.

[0025] <Configuration of indoor unit 1> The indoor unit 1 of the air conditioner is, for example, a wall-mounted indoor unit that is attached to a wall surface inside a room. The indoor unit 1 includes an indoor heat exchanger 11 and an indoor fan 12 that sends air to the indoor heat exchanger 11. The indoor unit 1 also includes an indoor control unit 100 that controls the indoor fan 12, solenoid valve 13, etc.

[0026] The indoor heat exchanger 11 is located upstream of the indoor fan 12 with respect to the air flow caused by the indoor fan 12. The indoor heat exchanger 11 has a main heat exchange section 11a, an auxiliary heat exchange section 11b, and a solenoid valve 13 to exchange heat between the air from the indoor fan 12 and the refrigerant.

[0027] A shutoff valve 36 is connected to one end of the auxiliary heat exchanger 11b via a refrigerant pipe L4. A shutoff valve 37 is connected to one end of the main heat exchanger 11a via a refrigerant pipe L5. The other end of the auxiliary heat exchanger 11b is connected to the other end of the main heat exchanger 11a via a refrigerant pipe L11, a solenoid valve 13, and a refrigerant pipe L12. This allows the refrigerant from the electric expansion valve 34 of the outdoor unit 2 to flow into the main heat exchanger 11a via the refrigerant pipe L4 and the auxiliary heat exchanger 11b.

[0028] For example, a cross-flow fan is used as the indoor fan 12. This cross-flow fan blows out air whose temperature has been adjusted by the indoor heat exchanger 11 into the room.

[0029] <Configuration of outdoor air conditioner 3> The outdoor air conditioning unit 3 of the air conditioner includes a compressor 31, a four-way switching valve 32, an outdoor heat exchanger 33, an electric expansion valve 34 as an example of an expansion mechanism, an accumulator 35, shut-off valves 36 and 37, an outdoor fan 30 that sends air to the outdoor heat exchanger 33, and an outdoor control unit 300. The outdoor control unit 300 is an example of a control unit.

[0030] The outdoor heat exchanger 33 is located upstream of the outdoor fan 30 with respect to the air flow caused by the outdoor fan 30. The refrigerant flowing through the outdoor heat exchanger 33 exchanges heat with the air from the outdoor fan 30.

[0031] <Configuration of the air supply device 4> Air supply device 4 includes heater 41, air supply fan 42, flexible hose 43, and damper 44. This air supply device 4 does not include a control unit such as outdoor control unit 300. Note that air supply fan 42 is an example of a fan that draws air in through air inlet 40 and blows it out through connection port 45.

[0032] An air supply path P1 is provided inside the air supply device 4. When the air supply fan 42 is driven, this air supply path P1 guides air drawn in through the air inlet 40 to the connection port 45 via the heater 41, the air supply fan 42, the flexible hose 43, and the damper 44. At this time, the air is appropriately heated by the heater 41 and supplied to the indoor unit 1 via the connection port 45 and the air supply duct 5.

[0033] The air supply fan 42 is disposed on the air supply path P1 immediately after the downstream side of the heater 41. This allows the air supply fan 42 to draw in air immediately after it has been heated by the heater 41.

[0034] <Configuration of refrigerant circuit RC> The refrigerant circuit RC of the air conditioner is made up of an indoor heat exchanger 11, a compressor 31, a four-way switching valve 32, an outdoor heat exchanger 33, an electric expansion valve 34, an accumulator 35, and refrigerant piping L1 to L7. More specifically, the indoor heat exchanger 11, the compressor 31, the four-way switching valve 32, the outdoor heat exchanger 33, the electric expansion valve 34, and the accumulator 35 are fluidly connected by the refrigerant piping L1 to L7. This forms a circular refrigerant circuit RC. When the compressor 31 is driven, refrigerant circulates through the refrigerant circuit RC.

[0035] FIG. 3 is a control block diagram of the outdoor air conditioner 3 and the air supply device 4.

[0036] The outdoor air conditioning unit 3 is equipped with an outdoor heat exchanger temperature sensor T1 that detects the temperature of the outdoor heat exchanger 33, an outdoor air temperature sensor T2 that detects the outdoor air temperature, and an evaporation temperature sensor T3 that detects the evaporation temperature of the electric expansion valve 34.

[0037] The outdoor control unit 300 controls the compressor 31, the four-way switching valve 32, the electric expansion valve 34, and the outdoor fan 30 based on signals from the outdoor heat exchanger temperature sensor T1, the outdoor air temperature sensor T2, the evaporation temperature sensor T3, etc. The outdoor control unit 300 also controls the heater 41, the supply air fan 42, and the damper 44. In other words, the outdoor control unit 300 includes a fan drive unit that drives the supply air fan 42 and a damper drive unit that drives the damper 44.

[0038] FIG. 4 is a control block diagram of the indoor unit 1.

[0039] The indoor unit 1 is equipped with an indoor heat exchanger temperature sensor T4 that detects the temperature of the indoor heat exchanger 11, an indoor temperature sensor T5 that detects the temperature in the room where the indoor unit 1 is installed, and a humidity sensor H that detects the humidity in the room where the indoor unit 1 is installed.

[0040] The indoor control unit 100 and the outdoor control unit 300 each have a CPU (Central Processing Unit) that performs calculations, a ROM (Read Only Memory), a RAM (Random Access Memory), etc. The ROM and RAM of the indoor control unit 100 store programs, data, etc. necessary for controlling the indoor unit 1. The ROM and RAM of the outdoor control unit 300 store programs, data, etc. necessary for controlling the outdoor air conditioner 3 and the air supply unit 4.

[0041] During the air conditioning operation of the air conditioner, the outdoor control unit 300 of the outdoor air conditioner 3 and the indoor control unit 100 of the indoor unit 1 communicate with each other via a communication line (not shown).

[0042] The air conditioner is also equipped with a remote controller (hereinafter referred to as "remote control"), not shown. By operating this remote control, it is possible to start or stop automatic operation, cooling operation, heating operation, dehumidification operation, air supply operation, etc. Here, the air supply operation refers to an operation in which outside air is supplied to the indoor unit 1 via the air supply duct 5 in order to ventilate the room. The air supply operation may be performed simultaneously with the automatic operation, cooling operation, heating operation, dehumidification operation, etc., or may be performed independently.

[0043] FIG. 5 is a perspective view showing the appearance of the outdoor unit 2 equipped with the outdoor air conditioner 3 and the air supply device 4. As shown in FIG.

[0044] The air supply device 4 is disposed on the outdoor air conditioner 3. The air supply device 4 is fixed to the outdoor air conditioner 3 with screws, for example.

[0045] Fig. 6 is an exploded perspective view of the outdoor unit 2. Fig. 7 is an exploded perspective view of the air supply device 4. In Figs. 6 and 7, 420 denotes a rectangular mesh member.

[0046] 6, the outdoor air conditioner 3 of the outdoor unit 2 includes a bottom plate 301, a front panel 302, a circular grille 303, a right side plate 304, a valve cover 305, and a left side plate 306. The front panel 302, the right side plate 304, and the left side plate 306 form an example of a second casing.

[0047] An outdoor heat exchanger 33 having an L-shape in plan view is attached to the bottom plate 301. A right side plate 304 is attached to the right end of the bottom plate 301. The stop valves 36, 37 (shown in FIG. 2) are located on the exterior side of the right side plate 304 and are covered by a valve cover 305. Meanwhile, a left side plate 306 is attached to the left end of the bottom plate 301.

[0048] Also attached to the bottom plate 301 is a partition plate 307 located between the right side plate 304 of the bottom plate 301 and the outdoor heat exchanger 33. The space between this partition plate 307 and the right side plate 304 forms a machinery room. The compressor 31 (shown in FIG. 2), the outdoor control unit 300, etc. are arranged in this machinery room. Also, a shielding plate 308 above the machinery room is attached to the upper end of the right side plate 304 and covers the outdoor control unit 300.

[0049] The front panel 302 is attached to the front edges of the bottom plate 301, the right side plate 304, and the left side plate 306. The front panel 302 has a round hole 302a in the center.

[0050] The grille 303 is attached to the periphery of the circular hole 302 a so as to close the circular hole 302 a and faces the outdoor fan 30 .

[0051] 6 and 7, the air supply device 4 of the outdoor unit 2 includes a bottom frame 401 with an opening at the top, and an upper panel 415 that closes the opening of the bottom frame 401. The bottom frame 401 and the upper panel 415 form an example of a first casing.

[0052] A connection port 45 is provided on the right side surface of the bottom frame 401. More specifically, the bottom frame 401 has a rectangular bottom portion 401a and a side wall 401b provided on the outer peripheral edge of the bottom portion 401a. The connection port 45 is provided on the right side of the side wall 401b.

[0053] A bell mouth 402 is attached to the left portion of bottom 401a (the portion opposite connection port 45 with respect to the longitudinal center of bottom 401a). A fan housing 403 is attached to bell mouth 402 so as to cover this bell mouth 402. Furthermore, a portion of bottom 401a located below bell mouth 402 is provided with a recess 401d. The other portion of recess 401d is located below heater 41. This recess 41 allows the air that has passed through heater 41 to be guided to intake fan 42.

[0054] Air supply fan 42 is disposed in the space between bell mouth 402 and fan housing 403. Fan motor 404 that drives and rotates air supply fan 42 is attached to the top surface of fan housing 403.

[0055] A heater 41 is attached to the rear of the center of the bottom 401a in the longitudinal direction. A guide wall 401c extends upward from the bottom 401a to the right of the heater 41 (toward the connection port 45). The heater 41 is covered with an insulating sheet 414.

[0056] An air outlet 403a is provided on the right side of the fan housing 403. One end of a flexible hose 43 is connected to the air outlet 403a.

[0057] A damper 44 is disposed on the right portion of the bottom 401a (the portion on the connection port 45 side relative to the longitudinal center of the bottom 401a). The damper 44 has an inlet on its upper surface, which serves as an air inlet, and an outlet on its lower surface, which serves as an air outlet. The other end of the flexible hose 43 is connected to the inlet of the damper 44 via a joint 406. One end of a connecting part 408 is connected to the outlet of the damper 44 via a joint 407.

[0058] The connecting portion 408 is fixed to the bottom frame 401. At this time, the connecting portion 408 is inserted into the connection port 45 provided in the side wall 401b, and the other end is located outside the side wall 401b. The other end of the connecting portion 408 is connected to a socket 410 via a joint 409. One end of the air supply duct 5 (shown in FIGS. 1 and 2) is connected to the socket 410. The joint 409 and the socket 410 are covered by a cover 412. The cover 412 is fixed to the side wall 401b.

[0059] A shielding plate 413 is attached to the lower surface of the bottom portion 401 a so as to be positioned below the heater 41 .

[0060] A top panel 415 is attached to the top of the side wall 401b so as to cover the components disposed on the bottom 401a.

[0061] <Air supply path P1 of air supply device 4> FIG. 8 is a top view of the air supply device 4 with the upper panel 415 removed, and FIG. 9 is a diagram illustrating the air supply path P1 of the air supply device 4.

[0062] 8, heater 41, air supply fan 42, and damper 44 are arranged on bottom portion 401a of bottom frame 401 so as not to overlap in a plan view. In other words, one of heater 41, air supply fan 42, and damper 44 is not stacked on any of the others.

[0063] As shown in Figure 9, air drawn in from outside the air supply device 4 through the intake port 40 passes through the air supply path P1 (path indicated by the arrow in Figure 9) formed by the heater 41, bell mouth 402, fan housing 403, flexible hose 43, damper 44 and bottom frame 401, and then blows out from the connection port 45.

[0064] 8 and 9, air supply fan 42 is disposed on the left side of heater 41. An upstream end of flexible hose 43 is disposed in front of heater 41. Flexible hose 43 is an example of a path member that forms part of air supply path P1.

[0065] An air inlet 40 is provided on the rear surface of the side wall 401b of the bottom frame 401 (see FIG. 10). The air inlet 40 is composed of a plurality of slits provided in the side wall 401b. A wall portion 430 faces the air inlet 40. The wall portion 430 is provided on the bottom portion 401a of the bottom frame 401 at a distance from the air inlet 40 and extends upward from the bottom portion 401a. In other words, the wall portion 430 is provided on the air supply path P1 upstream of the heater 41 so as to block a portion of the air supply path P1 and to extend upward from the bottom portion of the air supply path P1. A mesh member 420 is provided on the remaining portion of the air supply path P1 that is not blocked by the wall portion 430.

[0066] The mesh member 420 is, for example, a plain weave wire mesh of 16 mesh (1.1 mm x 1.1 mm) made of stainless steel wire with a wire diameter of 0.55 mm (JIS standard G3555). Such a plain weave wire mesh can suppress the accumulation of dust on the heater 41, thereby improving reliability.

[0067] 10 is a diagram illustrating the flow of air near the intake port 40 of the air supply path P1 of the air supply device 4. FIG. 10 is a cross section taken along line XX in FIG.

[0068] As shown by the arrows in FIG. 10, the air drawn in from the intake port 40 by the air supply fan 42 collides with the wall portion 430, passes through the upper mesh member 420, climbs over the wall portion 430, and proceeds below the heater 41.

[0069] Fig. 11 is a diagram illustrating the inclination of flexible hose 43 of air supply device 4. As shown in Fig. 11, one end of flexible hose 43 connected to bell mouth 402 and air outlet 403a of fan housing 403 is positioned lower than the other end of flexible hose 43 (on the damper 44 side).

[0070] The outdoor control unit 300 (shown in Figures 2, 3, and 6) controls the air supply operation. More specifically, when the air supply operation is stopped, the heater 41 is turned off (de-energized), the air supply fan 42 is stopped, and the damper 44 is closed. Then, for example, when the air supply operation is selected by operating the indoor remote control, the indoor control unit 100 sends a command signal for the air supply operation to the outdoor control unit 300. In response to the command signal from the indoor control unit 100, the outdoor control unit 300 opens the damper 44 and drives the air supply fan 42. As a result, outdoor air is drawn into the air supply path P1 from the air inlet 40 and supplied to the indoor unit 1 via the connection port 45 and the air supply duct 5.

[0071] The heater 41 can be turned on (energized) when specific conditions are met during air supply operation, thereby supplying dry air to the indoor unit 1 via the air supply duct 5. Here, the specific conditions are conditions (outdoor air temperature, etc.) that cause condensation to form inside the air supply duct 5. In this first embodiment, the outdoor control unit 300 adjusts the power of the heater 41 within a range of 120 W to 350 W based on specific conditions.

[0072] In the outdoor unit 2 of the air conditioner configured as described above, connection port 45 is provided on the right side surface of bottom frame 401, which reduces bending of the air flow between intake fan 42 and connection port 45, allowing the air blown out by intake fan 42 to flow smoothly to connection port 45. This reduces the ventilation resistance of the air supplied to indoor unit 1.

[0073] Because the air supply device 4 does not have a control unit such as the outdoor control unit 300, it is possible to increase the available space within the air supply device 4. As a result, it is possible to increase the degree of freedom in arranging components such as the heater 41 and the air supply fan 42.

[0074] Furthermore, by disposing the air supply fan 42 immediately downstream of the heater 41, the humidity of the air drawn in by the air supply fan 42 can be reduced by the heater 41. Therefore, condensation on the air supply fan 42 can be suppressed.

[0075] Furthermore, since the air inlet 40 is provided on the rear side surface of the bottom frame 401, it is possible to prevent the air supply path P1 from bending in a complex manner.

[0076] Furthermore, upstream of the heater 41 in the air supply path P1, the air sucked in from the intake port 40 collides with the wall portion 430 and then flows through the mesh member 420 toward the heater 41, so that the wall portion 430 can prevent water droplets from entering from the outside, and the mesh member 420 can capture foreign matter.

[0077] In addition, the heater 41, the air supply fan 42, and the damper 44 are arranged so that they do not overlap in a plan view, so that functional components such as the heater 41, the air supply fan 42, and the damper 44 can be arranged in a space-saving manner while keeping the height of the casing (401, 415) low.

[0078] Furthermore, since the path member that forms part of the air supply path P1 is flexible hose 43, the elastically deformable flexible hose 43 damps vibrations from air supply fan 42, thereby reducing noise. Furthermore, the use of flexible hose 43 increases the degree of freedom in designing the layout.

[0079] Furthermore, since the humidity of the air can be reduced by heating with heater 41 and the air can be made to flow through flexible hose 43 and air intake duct 5, the occurrence of condensation in flexible hose 43 and air intake duct 5 can be suppressed.

[0080] In addition, since the upstream end of the flexible hose 43 is closer to the heater 41 and has a higher temperature than the downstream end, by setting the upstream end of the flexible hose 43 at a lower position than the downstream end of the flexible hose 43 and providing an inclination, the condensed water in the flexible hose 43 can be dried at the upstream end where it collects.

[0081] In addition, by suppressing the occurrence of condensation in the air supply duct 5 that connects the air supply device 4 and the indoor unit 1, it is possible to suppress the occurrence of strange noises and strange odors caused by condensation water that accumulates in the air supply duct 5.

[0082] In the first embodiment, the heater 41 is arranged upstream of the air supply fan 42, but it may be arranged downstream of the air supply fan 42.

[0083] In the first embodiment, the connection port 45 is provided on the right side surface of the bottom frame 401, but it may also be provided on the front side surface, rear side surface or left side surface of the bottom frame 401.

[0084] In the first embodiment, the air intake fan 42 is disposed on the left side of the heater 41, but the air intake fan 42 may be disposed on the right side of the heater 41. In other words, the heater 41 and the air intake fan 42 are disposed such that the heater 41 is closer to the connection port 45 than the air intake fan 42, but the air intake fan 42 may be closer to the connection port 45 than the heater 41.

[0085] In the first embodiment, the air inlet 40 is provided on the rear side surface of the bottom frame 401, but it may be provided on the front, rear or left side surface of the bottom frame 401.

[0086] In the first embodiment, the flexible hose 43 is used as a path member that forms part of the air supply path P1, but the path member is not limited to this, and may be a duct made of resin or the like.

[0087] Second Embodiment FIG. 12 is an external perspective view of an outdoor unit 202 of an air conditioner according to the second embodiment of the present disclosure.

[0088] In the air conditioner, the configuration other than the outdoor unit 202 is the same as the configuration of the first embodiment.

[0089] The outdoor unit 202 is equipped with an air supply device 24 that is different from the air supply device 4 of the first embodiment. A plurality of air intake ports are provided on the right side surface of a bottom frame 2401 of this air supply device 24. More specifically, the bottom frame 1 has a rectangular bottom 2401a and a side wall 2401b provided on the outer periphery of this bottom 2401a. The plurality of air intake ports are provided on the right side of the side wall 2401b.

[0090] Although not shown, an air supply path similar to the air supply path P1 of the first embodiment is formed inside the bottom frame 2401. As a result, air drawn in from outside the air supply device 24 through a plurality of intake ports reaches the connection port 45 after passing through the air supply path.

[0091] The outdoor unit 202 also includes a valve cover 2305 attached to the outdoor air conditioner 3 and the air supply device 24. The valve cover 2305 is an example of a cover.

[0092] The valve cover 2305 covers the plurality of intake ports 240, the shut-off valves 36 and 37 (shown in FIG. 2), the joint 409, and the socket 410.

[0093] Fig. 13 is a right side view of the outdoor unit 202. Fig. 14 is an enlarged view of the handle portion 2305b of the valve cover 2305 and its surrounding area.

[0094] 13, the valve cover 2305 is provided with an opening 2305a that is located below the air intake 240 when the valve cover 2305 is attached to the outdoor air conditioner 3 and the air supply device 24. Since the opening 2305a of the valve cover 2305 is located below the air intake 240, it is possible to prevent dust, water, etc. that has flowed in through the opening 2305a of the valve cover 2305 from entering the inside of the outdoor unit 202 through the air intake 240.

[0095] 13 and 14, a handle 2305b is provided on the upper part of the valve cover 2305. The handle 2305b has a recessed shape that serves as a handle when the user carries the outdoor unit 202.

[0096] Furthermore, the handle portion 2305b may have an opening in a recessed portion that communicates with the inside of the valve cover 2305. In this case, the opening of the handle portion 2305b faces, for example, some of the multiple suction ports 240. More specifically, the inner circumferential surface of the opening of the handle portion 2305b is tapered from the outside to the inside. The upper part of the inner circumferential surface of the opening of the handle portion 2305b is approximately parallel to the horizontal direction. Meanwhile, the lower part of the inner circumferential surface of the opening of the handle portion 2305b is inclined relative to the horizontal direction so that the inner edge is higher than the outer edge.

[0097] According to outdoor unit 202 of the air conditioner having the above configuration, the opening of handle portion 2305b faces some of the multiple air inlets 240, allowing air to flow smoothly from the opening of handle portion 2305b to air inlets 240. Furthermore, the lower part of the inner circumferential surface of the opening of handle portion 2305b is inclined with respect to the horizontal direction so that the inner edge is higher than the outer edge, making it possible to prevent, for example, rainwater from passing through the opening of handle portion 2305b.

[0098] In the second embodiment, a plurality of air intake ports 240 are provided on the right side surface of the bottom frame 1, but it is also possible to provide a single air intake port.

[0099] Although specific embodiments of the present disclosure have been described, the present disclosure is not limited to the above-described embodiments and their modifications, and various modifications can be made within the scope of the present disclosure. For example, an embodiment of the present disclosure may be one in which part of the content described in the above-described embodiments is deleted or replaced. [Explanation of symbols]

[0100] 1 Indoor unit 2,202 Outdoor unit 3 Outdoor air conditioner 4. Air supply system 5 Air supply duct 11 Indoor heat exchanger 11a Main body heat exchange section 11b Auxiliary heat exchange section 12 Indoor fan 13 Solenoid valve 30 Outdoor fan 31 Compressor 32 Four-way switching valve 33 Outdoor heat exchanger 34 Electric expansion valve 35 Accumulator 36,37 Shut-off valve 40,240 Intake port 41 Heater 42 Air supply fan (fan) 43 Flexible hose (route component) 44 Damper 45 Connection port 100 Indoor control unit 300 Outdoor control unit 301 Bottom plate 302 Front Panel 303 Grill 304 Right side plate 305,2305 Valve cover 306 Left side plate 307 Partition 308 Shielding plate 401,2401 Bottom frame 401a,2401a bottom 401b,2401b side wall 401c Guide wall 401d recess 402 Bellmouth 403 Fan Housing 403a Air outlet 404 Fan motor 405 Insulation Sheet 406 Joint 407 Joint 408 Connection section 409 Joint 410,430 sockets 412 Cover 413 Shielding plate 415 Top Panel 420 Net components 430 Wall section 2305a aperture 2305b Handle P1 air supply route RC refrigerant circuit

Claims

1. an outdoor air conditioner (3) connected to the indoor unit (1) via a refrigerant pipe and having a control unit (300); an air supply device (24) connected to the indoor unit (1) via an air supply duct (5) and disposed on the outdoor air conditioner (3); a cover (2305) attached to the side of the outdoor air conditioner (3) and the air supply device (24) and positioned to the side of the outdoor air conditioner (3) and the air supply device (24); Equipped with The air supply device (24) a first casing (2401, 415) having an inlet (240) for sucking air, a connection port (45) to which the air supply duct (5) is connected, and an air supply path (P1) for guiding air from the inlet (240) to the connection port (45); a fan (42) provided in the air supply path (P1) for blowing air drawn in through the suction port (240) to the connection port (45); a heater (41) provided in the air supply path (P1) for heating the air sucked through the suction port (240); a damper (44) provided in the air supply path (P1) for switching between opening and closing of the air supply path (P1); and The connection port (45) is arranged on a side surface of the first casing (2401, 415), The fan (42), the heater (41), and the damper (44) are controlled by the control unit (300), The cover (2305) covers the connection port (45), in the outdoor unit (202) of the air conditioner.

2. The outdoor unit (202) of the air conditioner according to claim 1, The fan (42) is arranged downstream of the heater (41) in the air supply path (P1).

3. In the outdoor unit (202) of the air conditioner according to claim 1 or 2, The air intake (240) is provided on a side surface of the first casing (2401, 415).

4. The outdoor unit (202) of the air conditioner according to any one of claims 1 to 3, The air supply device (24) a wall portion (430) provided on the upstream side of the heater (41) of the air supply path (P1) so as to block a part of the air supply path (P1) and to extend upward from a bottom portion of the air supply path (P1); a mesh member (420) provided in the remaining portion of the air supply path (P1) upstream of the heater (41) that is not blocked by the wall portion (430); An outdoor unit (202) of an air conditioner having the above.

5. The outdoor unit (202) of the air conditioner according to any one of claims 1 to 4, The outdoor air conditioner (3) includes a second casing (302, 304, 306) and a stop valve (36, 37) disposed on a side surface of the second casing (302, 304, 306) and connected to the refrigerant pipe (L4, L5), The cover (2305) covers the suction port (240) and the shut-off valves (36, 37), and has an opening (2305a) located below the suction port (240).

Images