WO2020004281A1

WO2020004281A1 - Outdoor air conditioner

Info

Publication number: WO2020004281A1
Application number: PCT/JP2019/024789
Authority: WO
Inventors: 康介森本; 拓也上総; 健太堤
Original assignee: ダイキン工業株式会社
Priority date: 2018-06-29
Filing date: 2019-06-21
Publication date: 2020-01-02
Also published as: JP2020003174A

Abstract

Provided is an outdoor air conditioner comprising a heat source-side heat exchanger and a usage-side heat exchanger. The outdoor air conditioner (100) comprises: a compressor (1); the heat source-side heat exchanger (6); a heat source-side fan (7) that generates an airflow that passes through the heat source-side heat exchanger (6); the usage-side heat exchanger (3); a usage-side fan (4) that generates an airflow that passes through the usage-side heat exchanger (3); and a casing (10) that houses at least the heat source-side heat exchanger (6) and the usage-side heat exchanger (3). The heat source-side heat exchanger (6) is arranged at a higher position than the usage-side heat exchanger (3). The outdoor air conditioner (100) performs an operation that causes the usage-side heat exchanger (3) to function as a refrigerant evaporator and the heat source-side heat exchanger (6) to function as a refrigerant condenser.

Description

Outdoor air conditioner

The present disclosure relates to an outdoor air conditioner.

Conventionally, as described in Patent Document 1 (Japanese Patent Application Laid-Open No. 2006-234270), for example, an integrated air conditioner in which a compressor, a condenser, and an evaporator are installed in a cabinet has been proposed.

課題 An object of the present disclosure is to provide an outdoor air conditioner including a heat source side heat exchanger and a use side heat exchanger.

屋外 The outdoor air conditioner according to the first aspect includes a compressor, a heat source side heat exchanger, a first fan, a use side heat exchanger, a second fan, and a casing. The first fan generates an airflow passing through the heat source side heat exchanger. The second fan generates an airflow passing through the use side heat exchanger. The casing houses at least the heat source side heat exchanger and the use side heat exchanger. The heat source side heat exchanger is disposed above the use side heat exchanger. This outdoor air conditioner performs an operation in which at least the use side heat exchanger functions as a refrigerant evaporator and the heat source side heat exchanger functions as a refrigerant condenser.

It is preferable that the casing accommodates at least the heat source side heat exchanger, the use side heat exchanger, and the compressor therein, and has a support, a bottom plate, and a top plate.

屋外 This outdoor air conditioner has a heat source side heat exchanger and a use side heat exchanger, and can be used outdoors.

屋外 The outdoor air conditioner according to a second aspect is the outdoor air conditioner according to the first aspect, wherein the second fan is housed inside the casing and below the heat source side heat exchanger.

In this outdoor air conditioner, the temperature-conditioned air can be supplied to the user by the airflow formed by the second fan housed below the heat source side heat exchanger.

The outdoor air conditioner according to the third aspect is the outdoor air conditioner according to the second aspect, wherein the casing has a partition plate. The partition plate has an upper surface, a lower surface, and an opening. The upper surface of the partition faces the space in which the second fan is arranged. The lower surface of the partition plate faces the space where the use-side heat exchanger is arranged. The opening provided in the partition plate extends vertically.

In this outdoor air-conditioning apparatus, a vertical section between the space in which the second fan is disposed and the space in which the use-side heat exchanger is disposed can be realized by the partition plate facing both spaces. In addition, upsizing in the vertical direction is suppressed.

An outdoor air-conditioning apparatus according to a fourth aspect is the outdoor air-conditioning apparatus according to any of the first to third aspects, wherein the second fan is provided with a centrifugal wheel installed so that the rotation axis direction is the vertical direction. It is a blower.

では In this outdoor air conditioner, the airflow formed by the second fan can easily reach far.

The outdoor air conditioner according to a fifth aspect is the outdoor air conditioner according to any of the first to fourth aspects, wherein the first fan is disposed above the heat source side heat exchanger. The first fan generates an airflow that sends air passing through the heat source-side heat exchanger upward.

では In this outdoor air conditioner, the air that has passed through the heat source-side heat exchanger is sent upward by the first fan, so that it does not reach the user.

屋外 An outdoor air conditioner according to a sixth aspect is the outdoor air conditioner according to any one of the first to fifth aspects, wherein the casing has a polygonal outline in plan view.

屋外 In this outdoor air conditioner, the casing is less likely to fall as compared with a cylindrical casing.

屋外 The outdoor air conditioner according to the seventh aspect is the outdoor air conditioner according to any one of the first to sixth aspects, and further includes an electrical component. The casing has a bottom plate on which the compressor is mounted. The electrical component is located inside the casing, above the bottom plate and below the second fan.

(4) In this outdoor air conditioner, since the electrical components are arranged near the space where the use-side heat exchanger functioning as the evaporator is arranged, the temperature rise of the electrical components is suppressed.

屋外 An outdoor air conditioner according to an eighth aspect is the outdoor air conditioner according to any one of the first to seventh aspects, wherein the casing has a support. The support forms a part of the periphery of the casing in plan view. The struts extend vertically. Both the heat source side heat exchanger and the use side heat exchanger are fixed to the support.

屋外 In this outdoor air conditioner, the structure is strengthened because the heat source side heat exchanger and the use side heat exchanger are fixed to the same pillar, which is the same member.

The outdoor air conditioner according to a ninth aspect is the outdoor air conditioner according to any one of the first to eighth aspects, wherein the casing has a plurality of outlets. The plurality of outlets are for sending the air that has passed through the use-side heat exchanger to a plurality of sides outside the casing.

では In this outdoor air conditioner, the air that has passed through the use-side heat exchanger can be supplied in a plurality of directions.

屋外 The outdoor air conditioner according to the tenth aspect is the outdoor air conditioner according to any one of the first to ninth aspects, further comprising a wind direction adjusting member. The wind direction adjusting member changes the direction of the airflow passing through the outlet.

では In this outdoor air conditioner, it is possible to adjust the direction of the airflow passing through the outlet.

An outdoor air conditioner according to an eleventh aspect is the outdoor air conditioner according to any of the first aspect to the tenth aspect, wherein the heat source side heat exchanger and / or the use side heat exchanger include a plurality of heat exchangers. Surface.

In this outdoor air conditioner, it is possible to cause the heat source side heat exchanger and / or the use side heat exchanger to perform heat exchange on a plurality of heat exchange surfaces.

The outdoor air conditioner according to the twelfth aspect is the outdoor air conditioner according to any one of the first aspect to the eleventh aspect, further including a switching valve. This outdoor air conditioner can further perform an operation in which the use side heat exchanger functions as a refrigerant condenser and the heat source side heat exchanger functions as a refrigerant evaporator. The switching valve has a state in which the use side heat exchanger functions as a refrigerant evaporator and the heat source side heat exchanger functions as a refrigerant condenser, and a state in which the use side heat exchanger functions as a refrigerant condenser and heat source side heat exchange. And a state in which the vessel functions as a refrigerant evaporator.

In this outdoor air conditioner, air that has passed through the use-side heat exchanger that functions as a refrigerant evaporator and air that has passed through the use-side heat exchanger that functions as a refrigerant condenser can be switched and supplied. Will be possible.

The figure which shows the refrigerant circuit of the outdoor air conditioner 100. FIG. 2 is an external perspective view of the outdoor air conditioner 100. FIG. 2 is a perspective view showing an internal configuration of the outdoor air conditioner 100. FIG. 1 is a side view schematic layout configuration diagram illustrating an internal configuration of an outdoor air conditioner 100. FIG. 3 is a schematic plan view showing an arrangement relationship of each element on a bottom plate 12. FIG. 3 is a schematic plan view showing an arrangement relationship of each element on a first partition plate 17. FIG. 4 is a schematic plan view showing an arrangement relationship of each element on a second partition plate 16. FIG. 4 is a schematic plan view showing an arrangement relationship of each element on a third partition plate 15. FIG. 6 is a schematic plan view showing the arrangement relationship of each element on a fourth partition plate 14.

(1) Configuration of Refrigerant Circuit of Outdoor Air Conditioner 100 FIG. 1 shows a refrigerant circuit of the outdoor air conditioner 100 of the present embodiment, and FIG. The outdoor air conditioner 100 of the present embodiment is an air conditioner that is arranged outdoors and performs outdoor heating, cooling, dehumidification, and the like using a heat pump. Here, the outdoor means a space exposed to the outside air. For example, there may be a place without a roof, such as a park or an outdoor stadium, or an outdoor space with a roof, an arbor, or a place like a veranda.

The outdoor air-conditioning apparatus 100 may be a cooling-only machine that performs a cooling operation and / or a dehumidifying operation. The outdoor air-conditioning apparatus 100 may be a heating-only machine that performs only the heating operation or the heating operation and the defrosting operation. The outdoor air-conditioning apparatus 100 may be an air-conditioning apparatus that performs at least one of a cooling operation and a dehumidifying operation and performs only a heating operation or both a heating operation and a defrost operation.

The outdoor air conditioner 100 is an air conditioner in which the entire refrigerant circuit 9 shown in FIG. As shown in FIG. 1, the outdoor air conditioner 100 includes a compressor 1, an accumulator 8, a four-way switching valve 2, a use side heat exchanger 3, an expansion unit 5, and a heat source side heat exchanger 6. These devices constitute the refrigerant circuit 9 by being connected by piping.

More specifically, the accumulator 8 is connected between the first connection port of the four-way switching valve 2 and the suction side of the compressor 1. The discharge side of the compressor 1 is connected to a second connection port of the four-way switching valve 2. The third connection port of the four-way switching valve 2 is connected to the gas refrigerant side of the heat source side heat exchanger 6 via the heat source side gas side communication pipe 51, and the fourth connection port of the four way switching valve 2 is It is connected to the gas refrigerant side of the use side heat exchanger 3 via the use side gas side communication pipe 53. The expansion means 5 is connected to the liquid refrigerant side of the heat source side heat exchanger 6 via the heat source side liquid side communication pipe 52, and is connected to the liquid refrigerant of the usage side heat exchanger 3 via the usage side liquid side communication pipe 54. Connected to the side. Note that, for example, as a configuration without the four-way switching valve 2 in the cooling only machine, the heat source side gas side communication pipe 51 communicates the discharge side of the compressor 1 with the gas refrigerant side of the heat source side heat exchanger 6, The use side gas side communication pipe 53 may communicate the suction side of the compressor 1 and the gas refrigerant side of the use side heat exchanger 3.

In addition, the refrigerant circuit 9 including the four-way switching valve 2 is a heating-only machine that performs a heating operation and a defrosting operation, or at least one of a cooling operation and a dehumidifying operation, and only a heating operation or a heating operation and a defrosting operation. Both are employed in air conditioners that do. Further, in a cooling only machine that performs a cooling operation and / or a dehumidifying operation, a refrigerant circuit in which the four-way switching valve 2 is omitted can be used. Specifically, a refrigerant circuit in which the discharge side of the compressor 1 is connected to the heat source side heat exchanger 6 and the suction side of the compressor 1 is connected to the use side heat exchanger 3 (via the accumulator 8 as necessary) Can be used.

In the outdoor air conditioner 100 described above, the refrigerant sealed in the refrigerant circuit 9 circulates through each device, so that a vapor compression refrigeration cycle is performed. Here, in the case of the cooling operation, the dehumidification operation and the defrost operation, the use side heat exchanger 3 functions as a refrigerant evaporator, and the heat source side heat exchanger 6 functions as a refrigerant condenser. In the case of the heating operation, the use side heat exchanger functions as a refrigerant condenser, and the heat source side heat exchanger functions as a refrigerant evaporator. Switching between the cooling operation, the dehumidifying operation, the defrost operation, and the heating operation is performed by switching the switching state of the four-way switching valve 2 in the refrigerant circuit 9.

冷媒 As the refrigerant used in the outdoor air conditioner 100, for example, R32 alone, a mixed refrigerant containing R32 and the like can be mentioned. Examples of the mixed refrigerant containing R32 include R452B, R410A, and R454B. In R452B, R32 is 67.0 wt%, R125 is 7.0 wt%, and R1234yf is 26.0%. In R410A, R32 is 50 wt% and R125 is 50 wt%. R454B has R2.5 of 72.5 wt% and R1234yf of 27.5 wt%.

(2) Arrangement of each device of outdoor air conditioner 100 FIG. 2 is a perspective view of the external appearance of outdoor air conditioner 100, and FIG. FIG. 4 shows a schematic arrangement configuration diagram in a side view.

屋外 In the outdoor air-conditioning apparatus 100 according to the present embodiment, the casing 10 accommodates all devices constituting the refrigerant circuit 9, the heat source-side fan 7, and the use-side fan 4.

The casing 10 has a rectangular parallelepiped shape having a substantially rectangular horizontal cross section, and extends vertically so that the longitudinal direction is vertical. The top view of the casing 10 has a shape having symmetry. In the present embodiment, the shape of the casing 10 in plan view mainly includes four side surfaces 20a to 20d and four corners formed by portions between adjacent ones of the side surfaces 20a to 20d. , And has a substantially square shape. The outline of the shape of the casing 10 in plan view may be a polygon such as a triangle, a quadrangle, a pentagon, a hexagon, a heptagon, or an octagon, and all the sides constituting the polygon in a plan view are all straight lines. It is not limited to a target, and may have a curved portion.

The casing 10 includes four columns 11a to 11d, a top plate 13, a bottom plate 12, a fourth partition plate 14, a third partition plate 15, a second partition plate 16, a first partition plate 17, four upper decorative plates 21, It has four intermediate decorative panels 22, four lower decorative panels 23, four wind direction adjusting members 24, and the like.

The outer shape of the casing 10 is generally composed of four columns 11a to 11d, a top plate 13, a bottom plate 12, four upper decorative plates 21, four intermediate decorative plates 22, four lower decorative plates 23, and And four wind direction adjusting members 24, and has a structure extending vertically so that the longitudinal direction is a vertical direction. The four columns 11a to 11d are located at the four corners of the top plate 13 and the bottom plate 12 when viewed from above, and constitute four corners 25a to 25d of the casing 10 when viewed in plan. Each of the four columns 11a to 11d is provided in a posture in which the longitudinal direction is a vertical direction. The top plate 13 is a plate member fixed near the upper ends of the four columns 11a to 11d and extending horizontally. The bottom plate 12 is a plate member fixed near the lower ends of the four columns 11a to 11d and extending horizontally. Note that an upper decorative panel 21, a wind direction adjusting member 24, an intermediate decorative panel 22, and a lower decorative panel 23 are arranged between the columns 11a to 11d, which are adjacent to each other, from the top on all four sides. . The upper decorative panel 21 and the lower decorative panel 23 have a shape in which a plurality of protrusions protruding toward the side and arranged in a horizontal direction extend in the up-down direction. A portion facing the air inlet 45 and the heat source side suction port 47 has a portion opened so that air can be sent in the circumferential direction. The intermediate decorative plate 22 covers the lower decorative plate 23 in the circumferential direction, and has no opening or the like through which air passes. The wind direction adjusting member 24 is capable of adjusting the supply destination of the airflow passing through the portion above the intermediate decorative plate 22 and below the upper decorative plate 21 so that the portion can be closed. Is provided.

キャ Four casters 18 are attached under the bottom plate 12 to move the outdoor air conditioner 100 to change the installation location. Further, to the bottom plate 12, two fixed plates 19a and 19b having a main surface extending parallel to the ground are fixed. The outdoor air-conditioning apparatus 100 is prevented from falling by these fixing plates 19a and 19b. The fixing plates 19a and 19b are fixed to the bottom plate 12 by screws and can be removed.

The inside of the casing 10 includes a fourth partition plate 14, a third partition plate 15, a second partition plate 16, and a first partition plate 17 in order from the top so as to partition the inside of the casing 10 into a plurality of spaces arranged vertically. Are located. The fourth partition plate 14, the third partition plate 15, the second partition plate 16, and the first partition plate 17 are all fixed inside the four columns 11a to 11d, so that the structure of the casing 10 is improved. It also contributes to reinforcement. The heat source side heat exchanger 6 and the use side heat exchanger 3 may be fixed directly to the columns 11a to 11d, or may be fixed indirectly via one or two intervening members. May be. In order to secure a plurality of spaces vertically arranged inside the casing 10, the fourth partition plate 14, the third partition plate 15, and the Since the two partition plates 16 and the first partition plate 17 are used, it is possible to suppress an increase in the size of the outdoor air-conditioning apparatus 100 in the vertical direction.

As shown in FIG. 5, a space vertically surrounded by the bottom plate 12 and the first partition plate 17 in the interior of the casing 10 includes the compressor 1, the expansion means 5, the accumulator 8, the electrical components 28, and the drain A tank 29 is arranged. Here, the compressor 1 may be a variable capacity machine (inverter machine) or a fixed capacity machine (non-inverter machine) driven at a constant speed. The expansion means 5 is not particularly limited, and may be an electric expansion valve whose valve opening can be controlled, may be a mechanical expansion valve used together with a temperature-sensitive cylinder, or may be a capillary tube. Good. The electrical component 28 functions as a control unit that performs drive control of each element of the outdoor air conditioner 100, and includes a CPU, a ROM, a RAM, and the like. The electrical component 28 includes the compressor 1, the use side fan motor 4a, and the heat source side fan motor 7a (when the expansion means 5 is a controllable electric expansion valve or the like, the electric expansion valve, the four-way switching valve 2 is provided via the communication line 71 to the four-way switching valve 2 and to the wind direction adjusting member 24 if the attitude of the wind direction adjusting member 24 is controllable. The drain tank 29 captures and stores dew water generated in the use side heat exchanger 3 functioning as an evaporator. The drain tank 29 has a substantially rectangular parallelepiped shape, and the vertical height of the drain tank 29 is preferably equal to or more than half the length in the longitudinal direction of the drain tank 29 in plan view. It is more preferable that the length is not less than the length in the direction. Here, all of the four side surfaces between the bottom plate 12 and the first partition plate 17 are such that a portion between two columns 11a to 11d adjacent to each other does not allow air to pass through the corresponding lower decorative plate 23. Covered by parts.

熱 From the four-way switching valve 2, a heat source side gas side communication pipe 51 and a use side gas side communication pipe 53 extend toward the corner 25d side in plan view. Further, from the expansion means 5, a heat source side liquid side communication pipe 52 and a use side liquid side communication pipe 54 extend toward the corner 25d side in plan view.

(6) In the space inside the casing 10 which is vertically surrounded by the first partition plate 17 and the second partition plate 16, the use-side heat exchanger 3 is disposed as shown in FIG. The first partition plate 17 has a notch 17a penetrating in the vertical direction in the vicinity of the corner 25d. By forming the notch 17a, the communication line 71 and the heat source side gas side communication pipe 51, the use side gas side communication pipe 53, the heat source side liquid side communication pipe 52 which is a part of the refrigerant circuit 9, and The use-side liquid-side communication pipe 54 is extended further upward through a region surrounded by the use-side tube plate 33 and the support 11d provided such that a portion along the edge of the notch 17a extends in the vertical direction. It has become possible. The use-side gas-side communication pipe 53 and the use-side liquid-side communication pipe 54 extend upward to a height between the first partition plate 17 and the second partition plate 16, and are connected to the heat source-side gas connection pipe. The communication line 71 extending from the heat source side liquid side communication pipe 52 and the electrical component 28 extends further upward. The use side heat exchanger 3 is an air heat exchanger that performs heat exchange between a refrigerant flowing inside and air passing outside. The use-side heat exchanger 3 is constituted by two heat exchange units (a first use-side heat exchange unit 31 and a second use-side heat exchange unit 32) having a substantially L-shape in a top view. , 32 are arranged such that the insides of the L-shaped corners face each other. Each of the

heat exchange units

31 and 32 of the use-side heat exchanger 3 is configured to have a plurality of heat transfer tubes extending in the horizontal direction and a plurality of heat transfer fins penetrated by the heat transfer tubes. I have. Further, the

heat exchange portions

31 and 32 of the use side heat exchanger 3 are integrated via a common use side tube sheet 33 at the end on the side of the support 11d. The use side tube sheet 33 is provided so as to extend in the up-down direction along the edge of the notch 17 a of the first partition plate 17. Each of the

heat exchange sections

31 and 32 of the use-side heat exchanger 3 has two circumferentially oriented heat exchange surfaces that are perpendicular to each other. Note that the heat exchange surface is a surface perpendicular to the main air flow direction of the passing air, and is a surface facing sideways in the present embodiment. Here, the two heat exchange surfaces of the first usage-side heat exchange unit 31 are provided along

side surfaces

20a and 20b adjacent to each other. The two heat exchange surfaces of the second usage-side heat exchange section 32 are provided along side surfaces 20c and 20d adjacent to each other. The refrigerant supplied to the use-side heat exchanger 3 is diverted toward the two

heat exchange units

31 and 32, and after flowing in each of the

heat exchange units

31 and 32 so as to fold the refrigerant, the refrigerants are merged and used. It flows outside the heat exchanger 3.

Specifically, the first use side heat exchange section 31 has a first use side gas branch pipe 34 connecting the use side tube plate 33 and the use side gas side communication pipe 53 at the gas side portion, In the portion, there is a first usage-side liquid branch pipe 36 that connects the usage-side tube sheet 33 and the usage-side liquid-side communication pipe 54. In addition, the second usage-side heat exchange unit 32 has a second usage-side gas branch pipe 35 that connects the usage-side tube sheet 33 and the usage-side gas-side communication pipe 53 in the gas-side part, A second use-side liquid branch pipe 37 that connects the use-side tube sheet 33 and the use-side liquid-side communication pipe 54 is provided. Thus, when the use-side heat exchanger 3 functions as an evaporator for the refrigerant, the liquid refrigerant flowing through the use-side liquid-side communication pipe 54 is supplied to the first use-side liquid branch pipe 36 via the first use-side liquid branch pipe 36. Each of the first usage-side

heat exchange units

31 and 31 is branched into a refrigerant flowing toward the heat exchange unit 31 and a refrigerant flowing toward the second usage-side heat exchange unit 32 via the second usage-side liquid branch pipe 37. The refrigerant flowing from the first usage-side heat exchange unit 31 through the first usage-side gas branch pipe 34 after being evaporated in the second usage-side heat exchange unit 32 and the second usage-side gas from the second usage-side heat exchange unit 32 The refrigerant flowing through the branch pipe 35 joins and flows in the use-side gas-side communication pipe 53. When the use-side heat exchanger 3 functions as a refrigerant condenser, the flow of the refrigerant is reversed.

利用 The use-side heat exchanger 3 is fixed by being placed on the first partition plate 17. The first partition plate 17 is screwed and fixed to each of the columns 11a to 11d. Therefore, the use-side heat exchanger 3 is indirectly fixed to the columns 11a to 11d via the first partition plate 17. Here, any of the four side surfaces at the height position between the first partition plate 17 and the second partition plate 16 is such that a portion between two columns 11a-11d adjacent to each other has a corresponding lower decorative plate. 23 is covered with a portion including a use side suction port 45 configured to allow air to pass through. When the use-side heat exchanger 3 functions as a refrigerant evaporator, dew condensation water may be generated in the use-side heat exchanger 3. After being caught by a first partition plate 17 arranged below and configured to function as a drain pan, a drain tank arranged below through an opening (not shown) provided in the first partition plate 17 29. The drain tank 29 can be taken out of the casing 10 by removing a part of the lower decorative plate 23, and can be drained appropriately.

(7) In the space inside the casing 10 which is vertically surrounded by the second partition plate 16 and the third partition plate 15, the use-side bell mouth 41 and the use-side fan 4 are arranged as shown in FIG. The second partition plate 16 has a notch 16a penetrating vertically in the vicinity of the support 11d. By forming the notch 16 a in the second partition plate 16, the communication line 71 and the heat-source-side gas-side communication pipe 51 and the heat-source-side liquid-side communication pipe 52 that are a part of the refrigerant circuit 9 are separated from each other by the partition member. It is possible to extend further upward through a region surrounded by 16c and the support 11d. The partition member 16c is provided between the second partition plate 16 and the third partition plate 15 so that a portion of the second partition plate 16 along the edge of the notch 16a extends in the vertical direction. As a result, the air blown out from the usage-side fan 4 in the space between the second partition plate 16 and the third partition plate 15 causes the cutout 16a of the second partition plate 16 and the cutting of the third partition plate 15 described later. Flowing toward the notch 15a is prevented. Further, the second partition plate 16 has an upper surface facing upward which is a space side where the use side fan 4 is arranged, a lower surface facing downward which is a space side where the use side heat exchanger 3 is arranged, and a center. And an opening 16b which penetrates substantially vertically in the vicinity. The use-side bell mouth 41 is attached to the opening 16b, and guides air below the use-side bell mouth 41 to above the use-side bell mouth 41. The usage-side fan 4 is disposed above the vicinity of the upper end of the usage-side bell mouth 41 in a posture in which the rotation axis direction is the vertical direction. The use side fan 4 is not particularly limited, but is preferably a centrifugal blower such as a turbo fan. The use-side fan 4 includes an impeller and a use-side fan motor 4a that is disposed above the impeller and that drives the impeller to rotate. The use-side fan motor 4a is disposed inside a use-side fan motor accommodating portion 15b formed so as to protrude upward at the center of the third partition plate 15. Fixed. This allows the casing 100 to be downsized in the vertical direction. The use-side fan motor 4a is a different motor from the heat-source-side fan motor 7a of the heat-source-side fan 7, and can be independently driven and controlled. Here, the lower part (lower part of the wind direction adjusting member 24) of the four side surfaces at the height position between the second partition plate 16 and the third partition plate 15 is two columns 11a adjacent to each other. The portion between -11d is covered by the corresponding intermediate decorative panel 22. Note that the intermediate decorative plate 22 is configured not to allow air to pass through. The portions above the intermediate decorative plate 22 among the four side surfaces at the height positions between the second partition plate 16 and the third partition plate 15 are two columns 11a-11d adjacent to each other. The use side outlet 46 is constituted by being surrounded by. Each of the four use-side outlets 46 is provided with a wind direction adjusting member 24, so that the direction of the conditioned air flow blown out from the use-side outlets 46 can be independently changed. . The number of the wind direction adjusting members 24 is not particularly limited. For example, one wind direction adjusting member 24 may be provided for one use side outlet 46, or one use side outlet 46 may be provided. On the other hand, a plurality of wind direction adjusting members 24 may be provided, or one or a plurality of wind direction adjusting members 24 may be provided for each of the plurality of use side outlets 46. The change of the attitude of the wind direction adjusting member 24 for changing the blowing direction may be performed by control, or may be manually performed by a user. Further, the outdoor air conditioner 100 of the present embodiment is configured such that all the conditioned air blown out from the use-side outlet 46 is air that has passed through the use-side heat exchanger 3.

、 A heat source-side heat exchanger 6 is disposed in the space inside the casing 10 which is vertically surrounded by the third partition plate 15 and the fourth partition plate 14, as shown in FIG. The third partition plate 15 has a notch 15a penetrating in the vertical direction in the vicinity of the support 11d. By forming the notch 15a, the communication line 71 and the heat-source-side gas-side communication pipe 51 and the heat-source-side liquid-side communication pipe 52 that are a part of the refrigerant circuit 9 are formed along the edge of the notch 15a. It is possible to extend further upward through a region surrounded by the heat source side tube plate 63 and the column 11d provided so that the portion extending in the vertical direction is provided. The communication line 71, the heat source side gas side communication pipe 51, and the heat source side liquid side communication pipe 52 extend upward to a height between the third partition plate 15 and the fourth partition plate 14. The heat source side heat exchanger 6 is an air heat exchanger that performs heat exchange between the refrigerant flowing inside and the air passing outside. The heat source side heat exchanger 6 is constituted by two heat exchange units (a first heat source side heat exchange unit 61 and a second heat source side heat exchange unit 62) that are substantially L-shaped when viewed from above. , 62 are arranged such that the insides of the L-shaped corners face each other. Each of the

heat exchange portions

61 and 62 of the heat source side heat exchanger 6 is configured to include a plurality of heat transfer tubes extending in the horizontal direction and a plurality of heat transfer fins penetrated by the heat transfer tubes. The

heat exchange portions

61 and 62 of the heat source side heat exchanger 6 are integrated at a corner 25 d side end through a common heat source side tube plate 63. Each of the

heat exchange portions

61 and 62 of the heat source side heat exchanger 6 is configured to have two circumferentially oriented heat exchange surfaces that are perpendicular to each other. Here, the two heat exchange surfaces of the first heat source side heat exchange unit 61 are provided along

side surfaces

20a and 20b adjacent to each other. The two heat exchange surfaces of the second heat source side heat exchange section 62 are provided along side surfaces 20c and 20d adjacent to each other. The refrigerant supplied to the heat source side heat exchanger 6 is diverted toward the two

heat exchange units

61 and 62, and after flowing the refrigerant in each of the

heat exchange units

61 and 62 so as to return, the refrigerant is merged and joined. It flows outside the heat exchanger 6.

Specifically, the first heat source side heat exchange section 61 has a first heat source side gas branch pipe 64 connecting the heat source side tube plate 63 and the heat source side gas side communication pipe 51 in the gas side portion, In the portion, a first heat source side liquid branch pipe 66 that connects the heat source side tube plate 63 and the heat source side liquid side communication pipe 52 is provided. Further, the second heat source side heat exchange part 62 has a second heat source side gas branch pipe 65 connecting the heat source side tube plate 63 and the heat source side gas side communication pipe 51 in the gas side part, and in the liquid side part, A second heat source side liquid branch pipe 67 that connects the heat source side tube plate 63 and the heat source side liquid side communication pipe 52 is provided. Thereby, when the heat source side heat exchanger 6 functions as a refrigerant condenser, the liquid refrigerant flowing through the heat source side gas side communication pipe 51 is supplied to the first heat source side gas branch pipe 64 via the first heat source side gas branch pipe 64. The refrigerant is branched into a refrigerant flowing to the heat exchange unit 61 side and a refrigerant flowing to the second heat source side heat exchange unit 62 side via the second heat source side gas branch pipe 65, and each of the first heat source side heat exchange unit 61 and the After the refrigerant is condensed in the second heat source side heat exchange section 62, the refrigerant flows out of the first heat source side heat exchange section 61 through the first heat source side liquid branch pipe 66 and the second heat source side heat exchange section 62 has a second heat source side liquid branch pipe. The refrigerant flowing out through 67 flows into the heat source side liquid side communication pipe 52 in a combined manner. When the heat source side heat exchanger 6 functions as a refrigerant evaporator, the flow of the refrigerant is reversed.

The above heat source side heat exchanger 6 is fixed by being placed on the third partition plate 15. The third partition plate 15 is screwed and fixed to each of the columns 11a to 11d. Therefore, the heat source side heat exchanger 6 is indirectly fixed to the columns 11a to 11d via the third partition plate 15. Here, all of the four side surfaces at the height position between the third partition plate 15 and the fourth partition plate 14 are such that the portion between the two columns 11a-11d adjacent to each other corresponds to the corresponding upper decorative plate. 21 is covered with a portion including a heat source side suction port 47 configured to allow air to pass through. The third partition plate 15 is configured to have a function as a drain pan that receives dew water generated when the heat source side heat exchanger 6 functions as a refrigerant evaporator. The condensed water caught by the third partition plate 15 serving as a drain pan is disposed below the drain tank via an opening (not shown) provided in the third partition plate 15 and a drain passage along the columns 11a to 11c. 29.

熱 In the interior of the casing 10, a space vertically surrounded by the fourth partition plate 14 and the top plate 13 is provided with a heat source side bell mouth 42, a heat source side fan 7, and the like, as shown in FIG. In the fourth partition plate 14, an opening 14a is formed in the vicinity of the center so as to penetrate greatly in the vertical direction. The heat-source-side fan 7 is arranged in a posture in which the rotation axis direction is the vertical direction. The heat source side fan 7 is not particularly limited, but is preferably an axial blower such as a propeller fan. The heat-source-side fan 7 has an impeller and a heat-source-side fan motor 7a that is disposed below the impeller and drives the impeller to rotate. The heat source side fan motor 7a is located below the center of the fourth partition plate 14, and is fixed to a fan motor base (not shown) fixed to the fourth partition plate 14. The heat-source-side bell mouth 42 is provided above the heat-source-side fan 7 such that the diameter increases toward the upper side, and guides the air below the heat-source-side bell mouth 42 to above the heat-source-side bell mouth 42. Here, any of the four side surfaces at the height position between the fourth partition plate 14 and the top plate 13 is such that the portion between the two columns 11a-11d adjacent to each other is It is covered by a part that does not allow air to pass through.

(4) The top plate 13 is formed with a heat source side outlet 48 that penetrates vertically in the vicinity of the center in plan view. The heat source side outlet 48 has a shape corresponding to the upper end portion of the heat source side bell mouth 42 and is located immediately above the upper end portion of the heat source side bell mouth 42. The upper part of the heat source side outlet 48 is covered with a mesh-shaped fan guard 43.

(3) Configuration of flowing air in outdoor air conditioner 100 and description of air flow (3-1) Flow of air passing through use-side heat exchanger 3 Main air flow indicated by arrows 3, the flow of the air passing through the use side heat exchanger 3 will be described.

When the usage-side fan 4 is driven during operation of the outdoor air-conditioning apparatus 100, the surrounding air below the outdoor air-conditioning apparatus 100 causes each of the usage-side suction ports 45 provided to correspond to the four side surfaces 20a to 20d. Is taken into each heat exchanging section of the use side heat exchanger 3. The air taken into each heat exchanging section of the use side heat exchanger 3 exchanges heat with the refrigerant flowing inside the use side heat exchanger 3 and is conditioned. Then, the conditioned air gathers above the center of the space between the first partition plate 17 and the second partition plate 16 and is directed upward toward the inside of the use-side bell mouth 41, causing the use-side fan 4 to operate. pass. In this way, the conditioned air that has passed through the use-side fan 4 is sent outward in the circumferential direction through each of the use-side outlets 46 provided to correspond to the four side surfaces 20a to 20d. When the conditioned air passes through the use-side outlet 46, the wind direction is adjusted by the wind direction adjusting member 24. Although not particularly limited, the wind direction passing through the use-side outlet 46 may be ± 30 ° in the horizontal direction, and the angle of the wind direction with respect to the horizontal direction is adjusted by the wind direction adjusting member 24 in a wider range. The conditioned air does not pass through the use-side outlet 46 that is closed by the wind direction adjusting member 24.

(3-2) Flow of air passing through heat source side heat exchanger 6 The flow of air passing through heat source side heat exchanger 6 will be described with reference to FIG. 3 in which the main air flow is indicated by arrows. I do.

When the heat source side fan 7 is driven during the operation of the outdoor air conditioner 100, the surrounding air above the outdoor air conditioner 100 causes the heat source side inlets 47 provided to correspond to the four side surfaces 20a to 20d. Is taken into each heat exchange part of the heat source side heat exchanger 6. The air taken into each heat exchange part of the heat source side heat exchanger 6 exchanges heat with the refrigerant flowing inside the heat source side heat exchanger 6. Then, the air after the heat exchange gathers above the center of the space between the third partition plate 15 and the fourth partition plate 14 and is directed upward inside the bell mouth 42 of the heat source side, and the heat source side fan 7 Pass through. In this way, the heat-exchanged air that has passed through the heat-source-side fan 7 is mainly sent vertically upward through the heat-source-side outlet 48 formed in the top plate 13.

(4) Features of the embodiment (4-1)
In the outdoor air conditioner 100 of the present embodiment, the heat source side heat exchanger 6 is disposed above the use side heat exchanger 3 in one casing 10. Therefore, when the heat source side heat exchanger 6 functions as a refrigerant condenser and the use side heat exchanger 3 functions as a refrigerant evaporator, the waste heat generated in the heat source side heat exchanger 6 is further increased. The air cooled by the use-side heat exchanger 3 is easily discharged in a state where the influence of the heat from the heat-source-side heat exchanger 6 and the influence of the air heated by the heat-source-side heat exchanger 6 are suppressed. , It is easy to supply to the user.

(4-2)
In the outdoor air-conditioning apparatus 100 of the present embodiment, the use-side outlet 46 through which the conditioned air that has passed through the use-side fan 4 passes is disposed at a height above the compressor 1 and the use-side heat exchanger 3. ing. For this reason, the conditioned air blown out from the use-side outlet 46 is not only supplied to the user standing up around the outdoor air conditioner 100 but also to the user sitting down. It can supply enough to the upper body.

In addition, the compressor 1 which is relatively heavy among the components of the refrigerant circuit 9 is disposed in a lower region of the casing 10 below the use side fan 4 and the use side air outlet 46, so that outdoor air can be provided. It is also possible to enhance the stability when the harmony device 100 is installed.

(4-3)
The outdoor air-conditioning apparatus 100 of the present embodiment has a simple appearance because the components constituting the refrigerant circuit 9, the use side fan 4, and the heat source side fan 7 are accommodated in one casing 10. Can be. As described above, since the appearance of the outdoor air-conditioning apparatus 100 is rich in design, even when the outdoor air-conditioning apparatus 100 is used in a position that is easily visible near the user, the outdoor air-conditioning apparatus 100 received by the user Impression can be made good.

(4-4)
The outdoor air-conditioning apparatus 100 of the present embodiment only partitions the inside of the casing 10 by a plurality of partition plates (a fourth partition plate 14, a third partition plate 15, a second partition plate 16, and a first partition plate 17). Thus, it is possible to form an air flow path passing through the heat source side heat exchanger 6 and an air flow path passing through the use side heat exchanger 3 without providing a special duct member or the like. Therefore, the size of the outdoor air conditioner 100 in the vertical direction can be reduced.

(4-5)
In the outdoor air-conditioning apparatus 100 of the present embodiment, the use side fan 4 is disposed below the heat source side heat exchanger 6, and both the use side heat exchanger 3 and the use side fan 4 It is arranged below the exchanger 6. Therefore, even when the heat source side heat exchanger 6 functions as a refrigerant condenser, the air heated in the heat source side heat exchanger 6 radiates around the use side heat exchanger 3 and the use side fan 4. Can be suppressed.

(4-6)
In the outdoor air-conditioning apparatus 100 of the present embodiment, the usage-side fan 4 for supplying the air conditioned in the usage-side heat exchanger 3 to the surroundings is used in a posture in which the rotation axis direction is the vertical direction, and the circumferential direction is It uses a centrifugal fan that blows air through the turbo fan. For this reason, the air conditioned in the use side heat exchanger 3 can be sufficiently supplied to a position further distant from the surroundings of the outdoor air conditioner 100, and sufficient wind is provided to the user. By providing it, it is also possible to give a refreshing feeling.

(4-7)
In the outdoor air conditioner 100 of the present embodiment, when the heat source side heat exchanger 6 functions as a refrigerant condenser, the air heated through the heat source side heat exchanger 6 is heated by the heat source side blower. The air is discharged upward from the outdoor air conditioner 100 via the outlet 48. Therefore, it is possible to suppress the supply of the heated air in the heat source side heat exchanger 6 to the user who wants the cooling air that has passed through the use side heat exchanger 3 functioning as the evaporator. .

Moreover, in the outdoor air conditioner 100 of the present embodiment, the heat source side heat exchanger 6 functioning as a condenser is not only disposed above the utilization side heat exchanger 3 functioning as an evaporator, but also disposed on the heat source side. Since the air heated in the heat exchanger 6 has a lower specific gravity than the air cooled in the use-side heat exchanger 3, it is more certain that the air heated in the heat source-side heat exchanger 6 reaches the user. Can be suppressed.

When the heat source side heat exchanger 6 functions as a refrigerant evaporator, the air cooled through the heat source side heat exchanger 6 is supplied to the outdoor air conditioner through the heat source side outlet 48. It is discharged upward from 100. For this reason, it can be suppressed that the air cooled in the heat source side heat exchanger 6 is supplied to a user who wants the heated air that has passed through the use side heat exchanger 3 functioning as a condenser. .

(4-8)
The outdoor air-conditioning apparatus 100 of the present embodiment has a structure in which the casing 10 has a plurality of side surfaces (specifically, four side surfaces 20a to 20d). It has an easy structure. Moreover, in the outdoor air-conditioning apparatus 100 according to the present embodiment, the stability in the installed state can be further enhanced by the fixing plates 19a and 19b used by being fixed to the bottom plate 12.

(4-9)
In the outdoor air-conditioning apparatus 100 of the present embodiment, the height of the drain tank 29 in the vertical direction is preferably at least half the length in the longitudinal direction of the drain tank 29 in plan view, and more preferably in the plan view of the drain tank 29. It is configured to be at least half the length in the longitudinal direction. For this reason, in the drain tank 29, it is possible to sufficiently store dew water generated in the use-side heat exchanger 3.

In the outdoor air-conditioning apparatus 100 of the present embodiment, since the compressor 1 and the like are arranged on the bottom plate 12, the height between the bottom plate 12 and the first partition plate 17 needs to be sufficiently ensured. However, the space between the bottom plate 12 and the first partition plate 17 except for the compressor 1 and the like can be used as a place where the drain tank 29 having a certain height can be accommodated. ing.

(4-10)
In the outdoor air-conditioning apparatus 100 of the present embodiment, since the electrical component 28 is disposed above the bottom plate 12, dust from the ground does not easily reach the electrical component 28.

Further, the electrical component 28 is disposed below the use side fan 4, is located far away downward from the heat source side heat exchanger 6, and is used side heat than the heat source side heat exchanger 6. It is arranged at a position close to the exchanger 3. Therefore, even when the ambient temperature is high, such as when the heat source side heat exchanger 6 functions as a refrigerant condenser and the use side heat exchanger 3 functions as a refrigerant evaporator, the electrical components 28 Is suppressed, and the reliability of the electrical component 28 is easily ensured.

(4-11)
In the outdoor air conditioner 100 of the present embodiment, the use side heat exchanger 3 is disposed via the first partition plate 17, and the heat source side heat exchanger 6 is disposed via the third partition plate 15, and each of the columns 11 a to 11 d is provided. Fixed against. For this reason, the outdoor air-conditioning apparatus 100 has a structure that easily ensures structural strength.

(4-12)
The outdoor air-conditioning apparatus 100 of the present embodiment is provided with a plurality of use-side outlets 46 that open in the circumferential direction. For this reason, the conditioned air obtained by the heat exchange in the use-side heat exchanger 3 can be supplied in a plurality of directions around the outdoor air conditioner 100. Specifically, in the outdoor air conditioner 100 of the present embodiment, an air conditioner that supplies conditioned air only in a specific direction called a so-called spot air conditioner or an air conditioner arranged near a wall in a room On the contrary, it is possible to supply the conditioned air to a wider area of 180 ° or more, more specifically, 270 ° or more, more specifically, 360 °, excluding the pillars 11a to 11d. ing.

Furthermore, since the use side outlets 46 are provided with the wind direction adjusting members 24 for independently adjusting the direction of the conditioned air passing therethrough, the conditioned air is sent in every direction around the outdoor air conditioner 100. The position can be adjusted.

In addition, since any one of the use-side outlets 46 can be closed by the wind direction adjusting member 24, the supply of the conditioned air around the outdoor air conditioner 100 in the direction in which the supply of the conditioned air is unnecessary is avoided. be able to.

いない Further, when not in use, such as when the operation is stopped, the use-side outlet 46 is closed by the wind direction adjusting member 24, so that dust and insects can be prevented from entering the machine.

(4-13)
In the outdoor air-conditioning apparatus 100 of the present embodiment, each of the use-side heat exchanger 3 and the heat-source-side heat exchanger 6 has a plurality of heat exchange surfaces facing different directions, and also corresponds to the casing 10. As described above, the use-side suction port 45 and the heat-source-side suction port 47 that are opened in a plurality of directions are provided, so that both the use-side heat exchanger 3 and the heat-source-side heat exchanger 6 are in the circumferential direction. Heat exchange can be performed using air taken in from various directions.

(4-14)
The outdoor air-conditioning apparatus 100 according to the present embodiment can perform both the cooling operation and the heating operation because the refrigerant circuit 9 includes the four-way switching valve 2, so that the outdoor air-conditioning apparatus 100 includes the cooling-only device and the heating-only device. There are many opportunities that can be used.

(5) Modification (5-1) Modification A
In the outdoor air conditioner 100 of the above embodiment, the case where the appearance is a rectangular parallelepiped shape extending in the vertical direction has been described as an example.

On the other hand, the appearance of the outdoor air conditioner is not limited to a rectangular parallelepiped shape, and may have, for example, an appearance in which a horizontal cross section has a polygonal shape such as a pentagon, a hexagon, or a horizontal cross section. The outer shape may be circular or elliptical.

(5-2) Modification B
In the outdoor air-conditioning apparatus 100 of the above embodiment, the case where the use-side outlets 46 are formed so as to correspond to all of the plurality of side surfaces of the casing 10 has been described as an example.

On the other hand, the outdoor air conditioner 100 may have, for example, one or two or more side surfaces on which no air outlet is formed. In this case, it is possible to secure the direction in which the blown air is not supplied, suppress the supply of the conditioned air in the direction in which the conditioned air is not required, and adjust the conditioned air in the direction in which the conditioned air is required. It becomes possible to supply air more sufficiently.

(5-3) Modification C
In the outdoor air-conditioning apparatus 100 of the above-described embodiment, the use-side heat exchanger 3 and the heat-source-side heat exchanger 6 which are present in all circumferential directions by providing four heat exchange surfaces have been described as examples. .

On the other hand, the heat exchange surfaces of the use side heat exchanger 3 and the heat source side heat exchanger 6 may be oriented in three circumferential directions, or may be oriented in two circumferential directions. Or it may be oriented in only one circumferential direction.

The number of heat exchange surfaces of the use side heat exchanger 3 and the heat source side heat exchanger 6, the number of heat source side suction ports 47, the number of use side suction ports 45, and the number of use side outlets 46 are as follows. For example, when the number of heat exchange surfaces of the use side heat exchanger 3 and the heat source side heat exchanger 6 is three, the heat source side suction port 47, the use side suction port 45, The number of the use side outlets 46 may be four.

(5-4) Modification D
In the outdoor air-conditioning apparatus 100 of the above embodiment, the case where the electrical component 28 is disposed below the use side fan 4 and the use side heat exchanger 3 has been described as an example.

On the other hand, it is not necessary that all of the electrical components included in the outdoor air-conditioning apparatus 100 be disposed below the use-side fan 4 and the use-side heat exchanger 3, and some of the electrical components are located at other positions (for example, , The space between the user-side bell mouth 41 and the casing 10).

(5-5) Modification E
In the outdoor air conditioner 100 of the above embodiment, a case where the heat source side fan motor 7a of the heat source side fan 7 and the use side fan motor 4a of the use side fan 4 are separately provided as an example. Explained.

On the other hand, the heat source side fan 7 and the use side fan 4 may have a common fan motor arranged on the rotation shaft of both.

(5-6) Modification F
In the outdoor air conditioner 100 of the above embodiment, the use side heat exchanger 3 is provided on the upstream side of the air flow with respect to the use side fan 4, and the heat source side heat is provided on the upstream side of the air flow with respect to the heat source side fan 7. The case where the exchanger 6 is provided has been described as an example.

On the other hand, the use side heat exchanger 3 may be disposed downstream of the air flow with respect to the use side fan 4, and the use side heat exchanger 3 is located above the use side fan 4 in the casing 10. May be arranged. However, from the viewpoint of blowing the conditioned air obtained by the use-side heat exchanger 3 from a higher position, the arrangement of the above embodiment is preferable.

Further, the heat source side heat exchanger 6 may be disposed downstream of the air flow with respect to the heat source side fan 7, and the heat source side heat exchanger 6 is disposed on the heat source side fan 7 in the casing 10. You may. However, from the viewpoint of making it easier to send waste heat in the heat source side heat exchanger 6 functioning as a condenser condenser and unnecessary cold heat in the heat source side heat exchanger 6 functioning as a refrigerant evaporator to the upper part, An arrangement of the forms is preferred.

(5-7) Modification G
In the outdoor air-conditioning apparatus 100 of the above embodiment, the case where the electrical component 28 is disposed in the space inside the casing 10 vertically surrounded by the bottom plate 12 and the first partition plate 17 has been described as an example.

On the other hand, it is not necessary that all of the electrical components 28 included in the outdoor air conditioner 100 be disposed above the bottom plate 12 and below the first partition plate 17. In addition to the electric components arranged below the partition plate 17, electric components arranged at other positions (for example, around the heat source side fan 7) may be separately provided.

(5-8) Modification H
In the outdoor air-conditioning apparatus 100 of the above embodiment, the case has been described in which the casing 10 has four use-side outlets 46 and the air is sent out toward four sides as an example.

On the other hand, the direction of the air blown out through the use-side outlet 46 is not limited to four directions, but may be, for example, two directions, three directions, or the entire circumferential direction.

(5-9) Modification I
In the outdoor air conditioner 100 of the embodiment, the case where the drain tank 29 for storing the dew water generated in the heat exchanger is provided as an example has been described.

On the other hand, the outdoor air conditioner 100 does not necessarily need to include the drain tank.

For example, the dew condensation water trapped in the first partition plate 17 which is disposed below the use side heat exchanger 3 and functions as a drain pan may be discharged to the outside of the casing 10 via a drain hose (not shown) or the like. Good. For example, one end of the drain hose is connected to the lower side of an opening (not shown) formed to penetrate vertically near the corner of the first partition plate 17, and the other end of the drain hose penetrates vertically in the bottom plate 12. It may be configured to be connected to an opening (not shown) formed so as to perform drainage below the outdoor air conditioner 100.

The dew condensation water trapped in the third partition plate 15 disposed below the heat source side heat exchanger 6 and functioning as a drain pan may be discharged to the outside of the casing 10 via a drain hose or the like. Here, a drain hose for draining dew condensation water generated in the heat source side heat exchanger 6 includes a heat source side gas side communication pipe 51, a heat source side liquid side communication pipe 52, a use side gas side communication pipe 53, and a use side liquid side connection pipe. The arrangement may be made using the space of the corners 25a to 25c other than the corner 25d where the pipe 54 is arranged.

Here, the drainage path of the condensed water generated in the use-side heat exchanger 3 and the drainage path of the condensed water generated in the heat source-side heat exchanger 6 may be provided separately or merge from the middle. It may be provided as follows.

While the embodiments of the present disclosure have been described above, it will be understood that various changes in form and details can be made without departing from the spirit and scope of the present disclosure described in the claims. .

1: Compressor 2: Four-way switching valve (switching valve)
3: User side heat exchanger 4: User side fan (second fan)
5: expansion means 6: heat source side heat exchanger 7: heat source side fan (first fan)
8: Accumulator 9: Refrigerant circuit 10:

Casing

11a, 11b, 11c, 11d: Post 12: Bottom plate 13: Top plate 14: Fourth partition plate 15: Third partition plate 16: Second partition plate (partition plate)
16b: opening 17: first partition plate 18: casters 19a, 19b: fixed

plates

20a, 20b, 20c, 20d: side surface 21: upper decorative plate 22: intermediate decorative plate 23: lower decorative plate 24: wind direction adjusting member 28: electrical equipment Part 29: drain tank 41: use side bell mouth 42: heat source side bell mouth 43: fan guard 45: use side suction port 46: use side outlet (outlet)
47: heat source side suction port 48: heat source side outlet 100: outdoor air conditioner

JP 2006-234270 A

Claims

A compressor (1), a heat source side heat exchanger (6), a first fan (7) for generating an air flow passing through the heat source side heat exchanger, a use side heat exchanger (3), An outdoor air conditioner (100) comprising: a second fan (4) for generating an airflow passing through the use side heat exchanger;
A casing (10) accommodating at least the heat source side heat exchanger and the use side heat exchanger therein;
The heat source side heat exchanger is disposed above the utilization side heat exchanger,
An operation is performed in which at least the use-side heat exchanger functions as a refrigerant evaporator and the heat source-side heat exchanger functions as a refrigerant condenser.
Outdoor air conditioner.
The second fan is housed inside the casing and below the heat source side heat exchanger,
The outdoor air conditioner according to claim 1.
The casing has a partition plate (16),
The partition plate has an upper surface facing the space in which the second fan is disposed, a lower surface facing the space in which the use side heat exchanger is disposed, and an opening (16b) penetrating vertically. are doing,
The outdoor air conditioner according to claim 2.
The second fan is a centrifugal blower installed such that the rotation axis direction is the vertical direction.
The outdoor air conditioner according to any one of claims 1 to 3.
The first fan is disposed above the heat source side heat exchanger, and generates an air flow that sends air passing through the heat source side heat exchanger upward.
The outdoor air conditioner according to any one of claims 1 to 4.
The casing has a polygonal outline in a plan view,
The outdoor air conditioner according to any one of claims 1 to 5.
The casing has a bottom plate (12) on which the compressor is mounted,
An electrical component (28) disposed inside the casing and above the bottom plate and below the second fan,
The outdoor air conditioner according to any one of claims 1 to 6.
It has columns (11a to 11d) extending in the vertical direction, which constitute a part of the periphery of the casing in plan view,
The heat source side heat exchanger and the use side heat exchanger are both fixed to the support,
The outdoor air conditioner according to any one of claims 1 to 7.
The casing has a plurality of outlets (46) for sending out the air that has passed through the use-side heat exchanger to a plurality of sides outside the casing.
The outdoor air conditioner according to any one of claims 1 to 8.
A wind direction adjusting member (24) for changing a direction of an air flow passing through the air outlet;
The outdoor air conditioner according to any one of claims 1 to 9.
The heat source side heat exchanger and / or the use side heat exchanger has a plurality of heat exchange surfaces,
The outdoor air conditioner according to any one of claims 1 to 10.
It is possible to further perform an operation in which the use side heat exchanger functions as a refrigerant condenser and the heat source side heat exchanger functions as a refrigerant evaporator,
A state in which the use side heat exchanger functions as a refrigerant evaporator and the heat source side heat exchanger functions as a refrigerant condenser; and a state in which the use side heat exchanger functions as a refrigerant condenser and the heat source side heat exchange. A switching valve (2) for switching between a state in which the device functions as a refrigerant evaporator;
The outdoor air conditioner according to any one of claims 1 to 11.