Air conditioning system

Abstract

To provide an air conditioning device in which a refrigerant gas sensor can be easily attached and detached.SOLUTION: An air conditioning device comprises a casing (40) comprising an air flow passage (P), a first flow passage (P1) included in the air flow passage (P), an opening / closing member (90) for opening / closing the first flow passage (P1), a driving mechanism (100) for driving the opening / closing member (90), a refrigerant sensor (140) for detecting a refrigerant leaking into the casing (40), a first attachment part (211) to which the driving mechanism (100) is attached, a second attachment part (300b) to which the refrigerant sensor (140) is attached, and a housing part (200) internally comprising the first attachment part (211) and the second attachment part (300b) so as to be arranged opposite to a front panel part (41) constituting the casing (40).SELECTED DRAWING: Figure 11

Description

Technical Field

[0001] The present disclosure relates to an air conditioner.

Background Art

[0002] The air conditioner described in Patent Document 1 has an indoor unit provided with a refrigerant gas sensor. The refrigerant gas sensor detects refrigerant leaking inside the indoor unit.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the indoor unit described in Patent Document 1, the refrigerant gas sensor is disposed behind the connection pipe. In such a case, it is impossible to easily remove or attach the refrigerant gas sensor from the front of the indoor unit.

[0005] An object of the present disclosure is to provide an air conditioner capable of easily attaching and detaching a refrigerant gas sensor.

Means for Solving the Problems

[0006] The first aspect is a casing (40) having an air flow path (P), a first flow path (P1) included in the air flow path (P), an opening / closing member (90) for opening and closing the first flow path (P1), a drive mechanism (100) for driving the opening / closing member (90), a refrigerant sensor (140) for detecting refrigerant leaking into the casing (40), and a first attachment portion (211) to which the drive mechanism (100) is attached, The device comprises a second mounting portion (300b) to which the refrigerant sensor (140) is attached, The casing (40) is provided with a housing (200) that contains the first mounting portion (211) and the second mounting portion (300b), such that the first mounting portion (211) and the second mounting portion (300b) are positioned facing the front panel portion (41) that constitutes the casing (40). It is an air conditioning system.

[0007] In the first embodiment, since the housing (200) faces the front panel (41), the refrigerant sensor (140) inside the housing (200) can be easily removed and installed from the front side simply by removing the front panel. This improves the maintainability of the air inspection device. In addition, since the drive mechanism (100) and the refrigerant sensor (140) can be housed in a single housing (200), compactness can be achieved, and the number of parts can be reduced compared to when the drive mechanism (100) and the refrigerant sensor (140) are housed in separate housing cases.

[0008] In the second embodiment, the second mounting portion (300b) is positioned closer to the front panel portion (41) than the first mounting portion (211).

[0009] In the second embodiment, this arrangement allows the length of the casing (40) in the width direction (left-right direction) to be shorter than if the first mounting portion (211) and the second mounting portion (300b) were arranged side by side in the width direction of the casing (40). This makes the air conditioning unit product smaller.

[0010] In a third embodiment, the second mounting portion (300b) is provided such that, when viewed from the front of the housing portion (200), at least a portion of the first mounting portion (211) is located above the second mounting portion (300b).

[0011] In the third embodiment, the refrigerant sensor (140) can be positioned below the first mounting portion (211), allowing for effective use of the space below the first mounting portion (211). This enables the product to be made more compact.

[0012] The fourth aspect is one of the first to third aspects, The device further comprises a rotating shaft member (120) that connects the opening / closing member (90) and the drive mechanism (100), The aforementioned drive mechanism (100) is A motor (101) having an output shaft (102), The motor (101) has a gear (110) that transmits the rotational force to the rotating shaft member (120), The second mounting portion (300b) is positioned closer to the front panel portion (41) than the rotating shaft member (120).

[0013] In the fourth embodiment, the second mounting portion (300b) is positioned closer to the front panel portion (41), making it easier to remove and install the refrigerant sensor (140) from the front.

[0014] The fifth aspect is as described in the fourth aspect. The axis of the output shaft (102) is positioned above the axis of the gear (110). At least a portion of the second mounting portion (300b) or the refrigerant sensor (140) attached to the second mounting portion (300b) is positioned below the output shaft (102).

[0015] In the fifth embodiment, the space below the motor (101) can be effectively utilized by positioning the second mounting portion (300b) in the space below the output shaft (102) of the motor (101).

[0016] The sixth aspect is a manifestation of the fourth or fifth aspect, The second mounting portion (300b) is positioned such that, when viewed from above, at least a portion of the second mounting portion (300b) overlaps with the motor (101).

[0017] In the sixth aspect, by disposing the second mounting portion (300b) in the space directly below the output shaft (102) of the motor (101), the space directly below the motor (101) can be effectively utilized.

[0018] The seventh aspect is any one of the fourth to sixth aspects, further includes an electrical component box (65) disposed above the housing portion (200) and accommodating predetermined electrical components, The first wiring (H1) of the refrigerant sensor (140) extends from the housing portion (200) to the electrical component box (65) together with the second wiring (H2) of the motor (101).

[0019] In the seventh aspect, the wiring of the refrigerant sensor (140) and the wiring of the motor (101) can be bundled. Thereby, it is possible to prevent the wiring from interfering with the work when removing other components.

[0020] The eighth aspect is in the seventh aspect, the housing portion (200) is formed at a height position above the second mounting portion (300b), and has an insertion hole (215) through which the first wiring (H1) and the second wiring (H2) are inserted so as to extend outside the housing portion (200), further includes a regulating member (220) that regulates the arrangement of the first wiring (H1) and the second wiring (H2) so that after the first wiring (H1) and the second wiring (H2) extend downward from the insertion hole (215), they extend upward toward the electrical component box (65).

[0021] In the eighth aspect, water droplets adhering to the first wiring (H1) or the second wiring (H2) flow along the first wiring (H1) or the second wiring (H2) toward the regulating member (220), so that it is possible to prevent the water droplets from entering the first mounting portion (211). Thereby, failures of the motor (101) and the refrigerant sensor (140) can be suppressed.

[0022] The ninth aspect is any one of the first to eighth aspects, the housing portion (200) is disposed on the side of the opening / closing member (90).

[0023] In the ninth embodiment, the storage section (200) can be arranged by making effective use of the space on the side of the opening / closing member (90).

[0024] The tenth aspect is one of the first to ninth aspects, A heat exchanger (31) is arranged in the aforementioned air passage (P), The heat exchanger (31) is further equipped with a drain pan (50) located below it. The storage section (200) is located below the drain pan (50).

[0025] In the tenth embodiment, the space below the drain pan (50) can be effectively utilized to arrange the storage unit (200).

[0026] The eleventh aspect is one of the first to tenth aspects, The casing (40) includes a bottom plate (44) that forms the bottom surface of the casing (40), The storage section (200) is above the bottom plate (44) and are arranged at a predetermined distance from the bottom plate (44) It will be placed there.

[0027] In the eleventh embodiment, if a water leak occurs, water may accumulate on the bottom plate (44), but by positioning the second mounting part (300b) above the bottom plate (44), failure of the refrigerant sensor (140) due to water ingress can be suppressed.

[0028] The twelfth aspect is one of the first to tenth aspects, The first mounting portion (211) constitutes the housing portion (200) that houses the drive mechanism (100), The second mounting portion (300b) constitutes a housing case (300) for housing the refrigerant sensor (140). The aforementioned housing section (200) is The storage space (231) formed at the lower part of the storage section (200) and It has an opening (232) that communicates with the storage space (231) and opens toward the front panel portion (41), The storage case (300) is housed in the storage space (231) through the opening (232).

[0029] In the twelfth embodiment, the housing case (300) containing the refrigerant sensor (140) can be removed from the housing section (200) through the opening (232). Since only the refrigerant sensor (140) can be removed from the housing section (200) in this way, maintainability such as replacement of the refrigerant sensor (140) can be improved.

[0030] The 13th aspect is one of the 1st to 12th aspects, The air passage (P) is provided with a heat exchanger (31) that functions as a radiator and an evaporator, The casing (40) is The air passage (P) has a first outlet (51) that blows the air into the target space, It has a second outlet (54) located above the first outlet (51) that blows air from the air passage (P) into the target space, The first flow path (P1) is the first outlet (51), or a flow path continuous with the first outlet (51). [Brief explanation of the drawing]

[0031] [Figure 1] Figure 1 is a piping diagram of the refrigerant circuit of the air conditioning system in this embodiment. [Figure 2] Figure 2 is a three-dimensional perspective view showing the exterior of the indoor unit of this embodiment. [Figure 3] Figure 3 is a cross-sectional view of the indoor unit shown in Figure 2, taken along the line III-III. [Figure 4] Figure 4 is a front view of the indoor unit with the front panel removed. [Figure 5] Figure 5 shows a side view of the drain pan and gearbox of the indoor unit. [Figure 6]Figure 6 is a rearward perspective view of the damper unit. [Figure 7] Figure 7 shows the drive mechanism and refrigerant sensor viewed from above. [Figure 8] Figure 8 is an exploded perspective view of the sensor box. [Figure 9] Figure 9 is an exploded perspective view of the gearbox. [Figure 10] Figure 10 shows the sensor box being attached to the gearbox. [Figure 11] Figure 11 is a three-dimensional perspective view of the gearbox. [Figure 12] Figure 12 shows the gearbox viewed from the right side with the right-side housing removed. [Modes for carrying out the invention]

[0032] <Embodiment> Embodiments of the present invention will be described below with reference to the drawings. The following embodiments are essentially preferred examples and are not intended to limit the scope of the present invention, its applications, or its uses. Furthermore, each embodiment, modification, and other example described below can be combined or partially replaced to the extent that the present invention is implementable. In the following description, "up," "down," "front," "back," "right," and "left" refer to the directions shown in Figures 2 to 12. The thick arrow in Figure 3 indicates the direction of airflow within the air passage (P).

[0033] (1) Air conditioning system As shown in Figure 1, the air conditioning system (10) has an outdoor unit (20) and an indoor unit (30). The air conditioning system (10) is a separate type in which the outdoor unit (20) and the indoor unit (30) are connected via two connecting pipes (12, 13). This connection constitutes a refrigerant circuit (11). The refrigerant circuit (11) is filled with refrigerant. The refrigerant is, for example, an HFC such as R32. The refrigerant circuit (11) performs refrigeration cycle operation. The air conditioning system (10) air-conditions the target space.

[0034] (2) Outdoor unit The outdoor unit (20) is located outdoors. The outdoor unit (20) has a compressor (21), an outdoor heat exchanger (22), a four-way switching valve (24), and an expansion valve (23) connected to the refrigerant circuit (11). The outdoor unit (20) has an outdoor fan (25).

[0035] The compressor (21) compresses the inhaled refrigerant. The compressor (21) discharges the compressed refrigerant. The compressor (21) is a rotary compressor such as a scroll type, oscillating piston type, rolling piston type, or screw type.

[0036] The outdoor heat exchanger (22) exchanges heat between the refrigerant flowing inside it and the outdoor air via the outdoor fan (25). The outdoor fan (25) transports outside air to the outdoor heat exchanger (22).

[0037] The four-way switching valve (24) switches the flow path of the refrigerant circuit (11). The four-way switching valve (24) switches between a first state, shown by the solid line in Figure 1, and a second state, shown by the dashed line in Figure 1. In the first state, the first refrigeration cycle operation is performed. In the second state, the second refrigeration cycle operation is performed.

[0038] The expansion valve (23) reduces the pressure of the refrigerant. The expansion valve (23) is an electronically controlled expansion valve with an adjustable opening.

[0039] (3) Indoor Unit As shown in Figures 2 to 4, the indoor unit (30) comprises a casing (40), an indoor heat exchanger (31), an indoor fan (32), a drain pan (50), a damper unit (80), and an electrical component box (65). The indoor unit (30) is installed in the indoor space which is the target space. The indoor unit (30) is a floor-standing type. The components of the indoor unit (30) will be described below.

[0040] (3-1) Casing As shown in Figures 2 and 3, the casing (40) is formed in a generally rectangular box shape. The casing (40) has a front panel (41), a pair of side panels (42), a rear panel (43), a bottom panel (44), and a top panel (45). The bottom panel (44) is an example of a base plate (44).

[0041] Specifically, the casing (40) of this embodiment includes a first main frame (47), a second main frame (48), a top plate (45), an intake grille (41a), and a rear panel (43).

[0042] The first main frame (47) constitutes the front panel portion (41) and a pair of front side panels (42a) of the casing (40). The front side panels (42a) constitute the front portion of the side panel portion (42). The front panel portion (41) and the pair of front side panels (42a) are formed integrally.

[0043] The casing (40) has a first outlet (51). The first outlet (51) blows air from the air passage (P), described later, into the target space. The first outlet (51) is formed at the lower part of the front panel (41). In other words, the first outlet (51) is located at the lower part of the casing (40). The first outlet (51) is an elongated hole extending in the left-right direction. A first airflow direction adjustment unit (52) is positioned at the first outlet (51).

[0044] The first wind direction adjustment unit (52) is composed of multiple blades arranged horizontally within the first air outlet (51). The multiple blades of the first wind direction adjustment unit (52) rotate in the same direction. This adjusts the direction of the wind blown out horizontally from the first air outlet (51).

[0045] An intake port (53) is formed at the top of the front panel (41). Specifically, the intake port (53) is formed above the first outlet port (51). The intake port (53) extends from approximately one end to the other in the left-right direction of the front panel (41). The first main frame (47) is detachable from the second main frame (48).

[0046] The intake grille (41a) is provided to cover the intake port (53). The intake grille (41a) is detachable from the first main frame (47). The intake grille (41a) has multiple slits (S) that extend in the left-right direction and are arranged in the vertical direction. Indoor air is drawn into the intake port (53) through the slits (S).

[0047] The second main frame (48) constitutes a pair of rear side panels (42b) and a bottom panel (44) of the casing (40). The pair of rear side panels (42b) and the bottom panel (44) are integrally formed. The rear side panels (42b) constitute the rear portion of the side panel section (42). The lower surface of the bottom panel (44) is in contact with the floor.

[0048] The rear panel (43) is attached from the rear so as to cover the inside of the frame of the second main body frame (48).

[0049] The casing (40) has a second outlet (54). The second outlet (54) blows air from the air passage (P) into the target space. The second outlet (54) is located above the first outlet (51). Specifically, the second outlet (54) is provided on the top plate (45). In other words, the second outlet (54) is located on the upper part of the casing (40). The second outlet (54) is formed to extend in the left-right direction of the top plate (45). The second outlet (54) is provided with a second airflow direction adjustment unit (55).

[0050] The second airflow adjustment unit (55) is formed in the shape of a plate extending in the left-right direction. The second airflow adjustment unit (55) switches the second air outlet (54) between an open state and a closed state. The second airflow adjustment unit (55) also adjusts the direction in which air is blown out from the second air outlet (54). The second airflow adjustment unit (55) is pivotally supported on the top plate (45) so as to be rotatable. This controls the posture of the second airflow adjustment unit (55).

[0051] The top panel (45) houses the control panel (56) and the notification panel (57). The control panel (56) inputs instructions to the air conditioning unit, such as turning the power on and off and switching operation modes, based on user input. The notification panel (57) informs the user of the operating status of the air conditioning unit and the indoor thermal environment (such as room temperature and indoor humidity).

[0052] (3-2) Airflow channel The casing (40) has an air passage (P). The air passage (P) includes a lower passage (P1) and an upper passage (P2). The lower passage (P1) is a passage that connects the suction port (53) and the first outlet port (51). The lower passage (P1) is a passage that is continuous with the first outlet port (51). The upper passage (P2) is a passage that connects the suction port (53) and the second outlet port (54). The lower passage (P1) is the first passage (P1).

[0053] (3-3) Indoor heat exchanger The indoor heat exchanger (31) is positioned in the air passage (P). The indoor heat exchanger (31) functions as both a heat radiator and an evaporator.

[0054] The indoor heat exchanger (31) exchanges heat between the refrigerant and the indoor air transported by the indoor fan (32). The indoor heat exchanger (31) is of the fin-and-tube type. The indoor heat exchanger (31) is located towards the front of the casing (40). Specifically, the indoor heat exchanger (31) is located behind the intake port (53). The indoor heat exchanger (31) is positioned to cover almost the entire area of ​​the intake port (53).

[0055] (3-4) Bellmouth A bell mouth (58) is provided inside the casing (40). The bell mouth (58) is positioned between the indoor heat exchanger (31) and the indoor fan (32). The bell mouth (58) guides the air that has passed through the indoor heat exchanger (31) to the indoor fan (32). Specifically, the bell mouth (58) has a guide portion (58a). The guide portion (58a) is provided so as to extend from the opening edge of the bell mouth (58) toward the first outlet (51) and the second outlet (54). The guide portion (58a) guides the air that has passed through the indoor fan (32) toward the first outlet (51) or the second outlet (54).

[0056] (3-5) Indoor fan The indoor fan (32) is positioned behind the bell mouth (58). The indoor fan (32) is a centrifugal fan, specifically a turbo fan. The indoor fan (32) has a fan motor (32a), a fan drive shaft (32b) rotated by the fan motor (32a), and an impeller (32c) connected to the fan drive shaft (32b). The fan drive shaft (32b) extends in the front-rear direction. When the indoor fan (32) is in operation, the air that has passed through the bell mouth (58) changes direction radially outward of the impeller (32c). The air directed downward from the indoor fan (32) passes through the lower passage (P1) and is blown out into the room from the first outlet (51). The air directed upward from the indoor fan (32) passes through the upper passage (P2) and is blown out into the room from the second outlet (54).

[0057] (3-6) Drain pan As shown in Figure 5, the drain pan (50) is positioned below the indoor heat exchanger (31). The drain pan (50) collects water adhering to the indoor heat exchanger (31). The drain pan (50) is positioned from the right end to the left end of the indoor heat exchanger (31). The drain pan (50) is formed in a tray shape.

[0058] The bottom (59) of the drain pan (50) has a flat section (59a), a front inclined section (59b), and a rear inclined section (59c). The flat section (59a) is located approximately in the center of the bottom section (59) in the front-to-back direction. The upper surface of the flat section (59a) is approximately horizontal. The front inclined section (59b) extends from the flat section (59a) so as to slope upward toward the front wall of the drain pan (50). The rear inclined section (59c) extends from the flat section (59a) so as to slope upward toward the rear wall of the drain pan (50).

[0059] The drain pan (50) has an opening (not shown) for draining the drain water accumulated in the drain pan (50) to the outside. A cylindrical drain port (60) is provided in the opening. A drain hose (not shown) is connected to the drain port (60) to transport the drain water to the outside.

[0060] A drain port is provided at one end of the drain pan (50) in the left-right direction. A drain port (60) is provided at the bottom of the drain pan (50). The drain port (60) extends rearward from the bottom (59) of the drain pan (50), and its open end is inclined to face diagonally downward. Specifically, the drain port (60) extends diagonally downward from the rear inclined portion (59c) of the bottom (59).

[0061] (3-7) Electrical component box As shown in Figure 4, the electrical component box (65) is located at the top and right end of the casing (40). The electrical component box (65) houses predetermined electrical components. These electrical components include, for example, an indoor control unit (C2) that controls various devices within the indoor unit (30).

[0062] (3-8) Damper Unit As shown in Figures 6 and 7, a damper unit (80) is provided in the casing (40). The damper unit (80) constitutes the lower flow path (P1). Specifically, the damper unit (80) has a flow path inner wall (81), a damper (90), a drive mechanism (100), and a rotating shaft member (120).

[0063] The channel inner wall portion (81) constitutes the inner wall of the lower channel (P1). The channel inner wall portion (81) has an upper surface portion (81a), a left side surface portion (81b), and a right side surface portion (81c). The channel inner wall portion (81) is formed integrally with the drain pan (50).

[0064] Specifically, the upper portion (81a) is formed by the bottom portion (59) of the drain pan (50). The left side portion (81b) is formed by the left side wall of the drain pan (50) extending downward. The right side portion (81c) is formed by the right side wall of the drain pan (50) extending downward. The lower surface of the inner wall portion (81) of the flow path is formed by a part of the bottom panel (44). In this way, the inner wall portion (81) of the flow path is formed below the drain pan (50). In other words, a lower flow path (P1) is formed below the drain pan (50).

[0065] The damper (90) is an opening / closing member (90) that opens and closes the lower flow path (P1). The damper (90) is positioned inside the inner wall portion (81) of the flow path. The damper (90) is a horizontally elongated plate member. The damper (90) is rotatably supported by a plurality of support members (84, 85, 86) on the inner wall portion (81) of the flow path. Specifically, three support members (84, 85, 86) are provided at the lower end of the damper (90). The support members (84, 85, 86) are the first support member (84), the second support member (85), and the third support member (86).

[0066] The first support member (84) is provided at the right end of the damper (90). The first support member (84) is rotatably supported on the right side surface (81c) of the inner wall portion (81) of the flow path. The rotational force of the drive mechanism (100), which is located to the right of the right side surface portion (81c), is directly transmitted to the first support member (84).

[0067] Specifically, the first support member (84) penetrates the right side portion (81c) and is connected to the rotating shaft member (120) extending from the drive mechanism (100). The rotating shaft member (120) transmits the rotational force of the drive mechanism (100) to the first support member (84). In this way, the rotating shaft member (120) connects the damper (90) and the drive mechanism (100).

[0068] The second support member (85) is located approximately in the center of the damper (90). The second support member (85) is pivotally supported on the lower surface portion (81d).

[0069] The third support member (86) is provided at the left end of the damper (90). The third support member (86) is pivotally supported on the left side surface (81b).

[0070] In this way, the damper (90) is supported at three points on the inner wall of the flow path (81), allowing for stable opening and closing of the lower flow path (P1). The support members (84, 85, 86) may be at two points or four or more points.

[0071] (3-9) Drive mechanism The drive mechanism (100) includes a motor (101) and a gear (110). The motor (101) is, for example, a stepping motor. Electrical wiring (H2) is connected to the motor (101) (see Figure 12). The electrical wiring (H2) is connected to electrical components housed in an electrical component box (65). The motor (101) is controlled by a predetermined signal output from the electrical components via the electrical wiring (H2). The electrical wiring (H2) is an example of a second wiring (H2).

[0072] The motor (101) has an output shaft (102). The output shaft (102) extends in the left-right direction. The output shaft (102) extends in the same direction as the axial direction of the rotating shaft member (120). A first pinion (103) is provided on the output shaft (102).

[0073] The gear (110) transmits the rotational force of the motor (101) to the rotating shaft member (120). Specifically, the gear (110) is provided with a second pinion (112) and a third pinion (113). The second pinion (112) and the third pinion (113) are arranged side by side in the left-right direction. In other words, the second pinion (112) and the third pinion (113) are arranged adjacent to each other in the direction in which the output shaft (102) extends. The second pinion (112) is arranged to mesh with the first pinion (103). The third pinion (113) is arranged to mesh with the fourth pinion (121) of the rotating shaft member (120). In this way, the rotational force of the motor (101) is transmitted to the rotating shaft member (120) via the gear (110).

[0074] (3-10) Refrigerant sensor The refrigerant sensor (140) detects refrigerant leaking into the casing (40). The refrigerant sensor (140) may also be a sensor that detects the concentration of refrigerant in the air.

[0075] As shown in Figure 8, the refrigerant sensor (140) has a detection element (141) and a substrate (142). The detection element (141) may be an element having a metal oxide semiconductor. The substrate (142) converts the reaction of the detection element (141) when it comes into contact with the refrigerant gas into a predetermined signal.

[0076] A sensor wire (H1) is connected to the refrigerant sensor (140) (see Figure 12). The sensor wire (H1) is connected to an electrical component housed in the electrical component box (65). The refrigerant concentration detected by the refrigerant sensor (140) is transmitted via the sensor wire (H1) to the electrical component in the electrical component box (65).

[0077] (4) Control Unit As shown in Figure 1, the air conditioning system (10) has an outdoor control unit (C1) and an indoor control unit (C2). The outdoor control unit (C1) and the indoor control unit (C2) include an MCU (Micro Controller Unit), electrical circuits, and electronic circuits. The MCU includes a CPU (Central Processing Unit), memory, and a communication interface. Various programs for the CPU to execute are stored in the memory.

[0078] The outdoor control unit (C1) is installed in the outdoor unit (20). The outdoor control unit (C1) controls the operation of the compressor (21), the rotation speed of the outdoor fan (25), the opening degree of the expansion valve (23), etc.

[0079] The indoor control unit (C2) is installed in the indoor unit (30). The indoor control unit (C2) is included in the electrical components housed in the aforementioned electrical component box (65). The indoor control unit (C2) controls the operation of the motor (101) and the indoor fan (32). The indoor control unit (C2) receives signals output from the refrigerant sensor (140).

[0080] (5) Cooling operation, heating operation (5-1) Cooling operation During cooling operation, the outdoor control unit (C1) sets the four-way switching valve (24) to the first state. During cooling operation, the outdoor control unit (C1) and the indoor control unit (C2) operate the compressor (21), outdoor fan (25), and indoor fan (32), and adjust the opening degree of the expansion valve (23).

[0081] The indoor control unit (C2) closes the damper (90) (as shown by the dashed line in Figure 3) and opens the second air outlet (54). This blocks the lower airflow path (P1). Air drawn in from the intake port (53) passes through the upper airflow path (P2) and is blown out into the room from the second air outlet (54). The indoor control unit (C2) may also adjust the second airflow direction adjustment unit (55) to a predetermined position based on a command input by the user. Furthermore, the damper (90) does not have to be in the closed state at all times during cooling operation. During cooling operation, the control unit (C) may switch the damper (90) between the open and closed states in response to user operation.

[0082] During cooling operation, the refrigerant circuit (11) performs a refrigeration cycle (cooling cycle) in which the outdoor heat exchanger (22) functions as a heat radiator and the indoor heat exchanger (31) functions as an evaporator.

[0083] (5-2) Heating operation During heating operation, the outdoor control unit (C1) sets the four-way switching valve (24) to the second state. During heating operation, the outdoor control unit (C1) and the indoor control unit (C2) operate the compressor (21), outdoor fan (25), and indoor fan (32), and adjust the opening degree of the expansion valve (23).

[0084] The indoor control unit (C2) opens the damper (90) (solid line state in Figure 3) and also opens the second air outlet (54). As a result, the air drawn in from the intake port (53) flows through the lower flow path (P1) and the upper flow path (P2). The air heated by the indoor heat exchanger (31) is then blown out into the indoor space from the first air outlet (51) and the second air outlet (54).

[0085] During heating operation, the refrigerant circuit (11) performs a refrigeration cycle (heating cycle) in which the indoor heat exchanger (31) functions as a heat radiator and the outdoor heat exchanger (22) functions as an evaporator.

[0086] (6) Gearbox As shown in Figures 4, 9 to 12, the indoor unit (30) of the air conditioning unit (10) has a gearbox (200). The gearbox (200) is a component that houses the drive mechanism (100) and the refrigerant sensor (140), and has a first mounting portion (211) and a second mounting portion (300b), which will be described later, inside the gearbox (200). The gearbox (200) is an example of the housing portion (200) of this disclosure.

[0087] The gearbox (200) is positioned below the drain pan (50). The gearbox (200) is positioned to the right of the right side surface (81c) of the inner wall portion (81) of the flow path. The gearbox (200) is fixed to the right side surface (81c).

[0088] The gearbox (200) is positioned above the bottom panel (44) of the casing (40) and at a predetermined distance from the bottom panel (44). The predetermined distance should be such that the bottom surface of the gearbox (200) does not touch the top surface of the bottom panel (44). Preferably, the gearbox (200) should be as far away from the bottom panel (44) as possible. Because the gearbox (200) is positioned above the bottom panel (44), even if the bottom panel (44) gets wet, the water is prevented from entering the gearbox (200). When the indoor unit (30) is viewed from the front and the intake grille (41a) and the first main frame (47) are removed, the entire gearbox (200) is exposed (see Figure 4).

[0089] As shown in Figure 9, the gearbox (200) has a right housing (200a) and a left housing (200b). The two housings (200a, 200b) are assembled so that the right housing (200a) accommodates the left housing (200b). Specifically, the right housing (200a) has a first top surface (201), a first front surface (202), a first bottom surface (203), and a first side surface (204). The left housing (200b) has a second top surface (206), a second front surface (207), a second bottom surface (208), and a second side surface (209). With the right housing (200a) and the left housing assembled, the first upper surface (201) is covered from above by the second upper surface (206), and the first front surface (202) is covered from the front by the second front surface (207).

[0090] In other words, the top and front surfaces of the gearbox (200) have a double-layered structure. This prevents water from easily entering the gearbox (200) even if, for example, water droplets adhere to the top surface of the gearbox (200).

[0091] In this way, by combining the right housing (200a) and the left housing (200b), the second upper portion (206) constitutes the upper surface of the gearbox (200), and the second front portion (207) constitutes the front surface of the gearbox (200) (see Figure 11). The first side portion (204) constitutes the right side of the gearbox (200), and the second side portion (209) constitutes the left side of the gearbox (200). The first bottom portion (203) constitutes the right portion of the bottom of the gearbox (200), and the second bottom portion (208) constitutes the left portion of the gearbox (200).

[0092] As shown in Figures 9 and 12, the gearbox (200) has a drive mechanism fixing section (211) and a sensor box housing space (231).

[0093] The drive mechanism fixing portion (211) is provided in the upper and rear parts of the gearbox (200). The drive mechanism fixing portion (211) fixes the drive mechanism (100) and the rotating shaft member (120) within the gearbox (200). The drive mechanism fixing portion (211) is an example of the first mounting portion (211).

[0094] Specifically, the drive mechanism fixing part (211) has a motor fixing part (211a), a gear fixing part (211b), and a rotating shaft member fixing part (211c). The motor fixing part (211a) fixes the motor (101). The motor fixing part (211a) is formed near the center in the front-rear direction at the top of the gearbox. The gear fixing part (211b) is formed behind the motor fixing part (211a) and in contact with the lower part of the motor fixing part (211a). The rotating shaft member fixing part (211c) is located at the rearmost and lower part of the gearbox (200). The rotating shaft member fixing part (211c) is formed behind the gear fixing part (211b) and in contact with the lower part of the gear fixing part (211b). Thus, the motor fixing portion (211a), the gear fixing portion (211b), and the rotating shaft member fixing portion (211c) are provided in a continuous sequence from the front to the rear of the gearbox (200). Furthermore, with the motor fixing portion (211a) and the gear fixing portion (211b) arranged side by side, the drive mechanism fixing portion (211) is formed to incline downward from the front to the rear of the gearbox (200).

[0095] As shown in Figures 7 and 12, when viewing the drive mechanism (100) inside the gearbox (200) from above, the motor (101), gear (110), and rotating shaft member (120) are arranged in that order from front to back. The output shaft (102) of the motor (101) is located behind the center of the motor (101). Also, when viewing the drive mechanism (100) of the gearbox (200) from the side, the axis of the output shaft (102) of the motor (101) is located above the axis of the gear (110). The axis of the rotating shaft member (120) is located below the axis of the gear (110).

[0096] The axis A1 of the output shaft (102), the axis A2 of the gear (110), and the axis A3 of the rotating shaft member (120) are not aligned on the same straight line. Specifically, the angle of inclination of the straight line connecting the axis A1 of the output shaft (102) and the axis A2 of the gear (110) with respect to the horizontal is smaller than the angle of inclination of the straight line connecting the axis A2 of the gear (110) and the axis A3 of the rotating shaft member (120) with respect to the horizontal.

[0097] This arrangement allows the three components—the motor (101), the gear (110), and the rotating shaft member (120)—to be positioned close to each other. This saves space inside the gearbox (200), thus allowing the gearbox (200) to be made smaller.

[0098] As shown in Figures 9 and 12, the drive mechanism fixing part (211) has a wiring housing part (221) for housing wiring. The wiring housing part (221) is a space in which electrical wiring (H2) and sensor wiring for the refrigerant sensor (140), which will be described later, are arranged. The wiring housing part (221) is located in front of the motor fixing part (211a). The wiring housing part (221) is located above the sensor box (300), which will be described later. In other words, the wiring housing part (221) is located above the sensor fixing part (300b), which will be described later. The electrical wiring (H2) and sensor wiring (H1) extend to the outside through an insertion hole (215), which will be described later (see Figure 11).

[0099] (7) Sensor box As shown in Figures 9 and 10, the sensor box (300) is a component that houses the refrigerant sensor (140). In this way, the refrigerant sensor (140) is housed in the gearbox (200). The sensor box (300) is an example of a housing case (300).

[0100] The sensor box (300) is housed in a sensor box housing space (231) formed within the gearbox (200). The sensor box housing space (231) is an example of the housing space (231). The sensor box housing space (231) is formed in the lower part of the gearbox (200). Specifically, the sensor box housing space (231) is formed in the front part of the lower part of the gearbox (200). More specifically, the sensor box housing space (231) is formed in the space below the motor fixing part (211a), which is part of the drive mechanism fixing part (211). The sensor box housing space (231) is formed in the space in front of the rotating shaft member fixing part (211c), which is part of the drive mechanism fixing part (211).

[0101] The sensor box (300) is housed in the gearbox (200) via an opening (232) provided in the gearbox (200). Space(231) The sensor box is housed within the gearbox (200). The opening (232) is provided on the front of the gearbox (200). Specifically, the opening (232) is formed in the first front section (202) and the second front section (207). The opening (232) communicates with the sensor box housing space (231) and opens towards the front panel section (41). In this way, the sensor box (300) is installed inside the gearbox (200) or removed through the opening (232) on the front of the gearbox (200).

[0102] As shown in Figures 8 to 10, the sensor box (300) has a front wall portion (300a) and a sensor fixing portion (300b). The front wall portion (300a) is a member that closes the opening (232) when the sensor box (300) is housed in the sensor box housing space (231). The front wall portion (300a) is provided with mounting holes (301). The mounting holes (301) are holes through which fastening members (B), such as screws, are inserted. By inserting the fastening members (B) into the mounting holes (301), the sensor box (300) and the gear box (200) are fastened together.

[0103] A refrigerant sensor (140) is attached to the sensor fixing part (300b). The sensor fixing part (300b) is an example of the second mounting part (300b). In other words, the sensor fixing part (300b) constitutes a sensor box (300) that houses the refrigerant sensor (140).

[0104] The sensor fixing portion (300b) is formed in a frame shape. The substrate (142) of the refrigerant sensor (140) is mounted within the frame of the sensor fixing portion (300b). The cylindrical portion of the detection element (141) of the refrigerant sensor (140) extends downward from the sensor fixing portion (300b).

[0105] The sensor fixing portion (300b) is formed to extend rearward from approximately the center height position of the front wall portion (300a). The sensor fixing portion (300b) is positioned closer to the front panel portion (41) than the rotating shaft member (120). More specifically, the sensor fixing portion (300b) is positioned closer to the front panel portion (41) than the drive mechanism fixing portion (211).

[0106] The sensor fixing portion (300b) is positioned such that, when viewed from the front of the gearbox (200), at least a portion of the drive mechanism fixing portion (211) is located above the sensor fixing portion (300b). Specifically, the sensor fixing portion (300b) is positioned such that a portion of the motor fixing portion (211a) of the drive mechanism fixing portion (211) is located above the sensor fixing portion (300b). Furthermore, the sensor fixing portion (300b) is positioned below the output shaft (102) of the motor (101). The sensor fixing portion (300b) is positioned directly below the wiring housing portion (221).

[0107] The sensor mounting portion (300b) is positioned such that, when viewed from above inside the gearbox (200), a portion of the sensor mounting portion (300b) overlaps with the motor (101). In other words, when viewed from above and directly below, a portion of the rear part of the sensor mounting portion (300b) and a portion of the front part of the motor (101) overlap.

[0108] Figure 10 illustrates how to install the sensor box (300). The sensor box (300) is inserted into the sensor box housing space (231) from the front through the opening (232). After inserting the sensor fixing part (300b) until the front wall portion (300a) is closed to the opening (232), the fastening member (B) is inserted into the mounting hole (301). This fixes the sensor box (300) to the gearbox (200). To remove the sensor box (300) from the gearbox (200), remove the fastening member (B) from the mounting hole (301) and pull the sensor box (300) forward.

[0109] As explained above, the gearbox (200) is positioned facing the front panel (41). The sensor box (300) can be attached to or removed from the gearbox (200) through the opening (232), so the sensor box (300) is also positioned facing the front panel (41). In other words, the gearbox (200) and the sensor box (300) are positioned facing the front panel (41). The gearbox (200) is also positioned below the drain pan (50). The gearbox (200) is positioned to the side of the damper (90).

[0110] (8) The orientation of the wiring connected to the gearbox Next, we will describe the orientation of the electrical wiring (H2) connected to the gearbox (200).

[0111] As shown in Figure 11, the gearbox (200) has an insertion hole (215). The insertion hole (215) is formed at a height above the sensor fixing portion (300b). The insertion hole (215) is a hole through which the sensor wiring (H1) and electrical wiring (H2) are inserted so that the sensor wiring (H1) and electrical wiring (H2) extend to the outside of the gearbox (200).

[0112] The through hole (215) is formed in the first side portion (204) of the gearbox (200). The through hole (215) is formed on the upper and forward side of the first side portion (204). Specifically, the through hole (215) is formed by combining the right housing (200a) and the left housing (200b). The through hole (215) communicates with a notch (216) formed in the first front portion (202) (see Figure 9). The notch (216) is formed by cutting out the first front portion (202) toward the left.

[0113] The electrical wiring (H2) and sensor wiring (H1) extend upward from inside the gearbox (200) through the through-hole (215) toward the electrical component box (65). In this way, the sensor wiring (H1) extends toward the electrical component box (65) together with the electrical wiring (H2) of the motor (101). The electrical wiring (H2) and sensor wiring (H1) extending from the through-hole (215) toward the electrical component box (65) are bundled together into a single bundle.

[0114] The electrical wiring (H2) and sensor wiring (H1) are inserted into the notches (216) to form the insertion holes (215) before the left housing (200b) is assembled to the right housing (200a). Then, by assembling the left housing (200b) to the left housing (200b), the electrical wiring (H2) and sensor wiring (H1) are inserted through the insertion holes (215).

[0115] A hook portion (220) is formed on the first side portion (204). The hook portion (220) is formed so that its tip curves downward. The hook portion (220) is a restricting member (220) that restricts the arrangement of the electrical wiring (H2) and the sensor wiring (H1). The hook portion (220) is positioned below the insertion hole (215). The hook portion (220) is positioned behind the insertion hole (215). As a result, the first wiring (H1) and the second wiring (H2) extend downward from the insertion hole (215) and then extend upward toward the electrical component box (65).

[0116] (9) Characteristics (9-1) Feature 1 The indoor unit (30) of this embodiment includes a damper (90) for opening and closing the lower flow path (P1), a drive mechanism (100) for driving the damper (90), a refrigerant sensor (140) for detecting refrigerant leaking into the casing (40), a gearbox (200) to which the drive mechanism (100) is attached, and a sensor box (300) to which the refrigerant sensor (140) is attached. The gearbox (200) has a first mounting portion (211) to which the drive mechanism (100) is attached and houses the sensor box (300). The sensor box (300) has a second mounting portion (300b) to which the refrigerant sensor (140) is attached. Thus, the first mounting portion (211) and the second mounting portion (300b) are arranged inside the gearbox (200), and the gearbox (200) houses the drive mechanism (100) and the refrigerant sensor (140). The gearbox (200) is positioned facing the front panel (41) that makes up the casing (40).

[0117] According to this embodiment, since the gearbox (200) faces the front panel (41), the operator can inspect the inside of the gearbox (200) from the front simply by removing the front panel. Furthermore, since the drive mechanism (100) and the refrigerant sensor (140) are housed in the same gearbox (200), both the drive mechanism (100) and the refrigerant sensor (140) can be inspected and parts replaced simply by opening the gearbox (200). In this way, the maintainability of the drive mechanism (100) and the refrigerant sensor (140) inside the gearbox (200) is improved.

[0118] (9-2) Feature 2 In the indoor unit (30) of this embodiment, the sensor fixing part (300b) is positioned closer to the front panel part (41) than the drive mechanism fixing part (211). This arrangement allows the length of the casing (40) in the width direction (left-right direction) to be shorter than if the drive mechanism fixing part (211) and the sensor fixing part (300b) were arranged side by side in the width direction of the casing (40). This makes the indoor unit (30) product more compact.

[0119] (9-3) Feature 3 In the indoor unit (30) of this embodiment, the sensor fixing portion (300b) is provided such that, when viewed from the front of the gearbox (200), at least a part of the drive mechanism fixing portion (211) is located above the sensor fixing portion (300b). This allows the refrigerant sensor (140) to be positioned below the drive mechanism fixing portion (211), thus enabling effective use of the space below the drive mechanism fixing portion (211). This makes the indoor unit (30) more compact.

[0120] (9-4) Feature 4 In the indoor unit (30) of this embodiment, the sensor fixing portion (300b) is positioned closer to the front panel portion (41) than the rotating shaft member (120).

[0121] According to this, by positioning the sensor fixing part (300b) closer to the front panel part (41), it becomes easier to remove and install the refrigerant sensor (140) from the front.

[0122] (9-5) Feature 5 In the indoor unit (30) of this embodiment, at least a portion of the sensor fixing portion (300b) is positioned below the output shaft (102).

[0123] According to this, the sensor mounting part (300b) can be positioned in the space below the output shaft (102) of the motor (101), thus making effective use of the space below the motor (101).

[0124] (9-6) Feature 6 In the indoor unit (30) of this embodiment, the sensor fixing portion (300b) is positioned such that, when viewed from above, at least a portion of the sensor fixing portion (300b) overlaps with the motor (101).

[0125] According to this, by placing the sensor fixing part (300b) in the space directly below the output shaft (102) of the motor (101), the space directly below the motor (101) can be effectively utilized.

[0126] (9-7) Feature 7 In the indoor unit (30) of this embodiment, an electrical component box (65) is further provided, which is located above the drive mechanism fixing part (211) and houses predetermined electrical components. The sensor wiring (H1) of the refrigerant sensor (140) extends to the electrical component box (65) via the drive mechanism fixing part (211) together with the electrical wiring (H2) of the motor (101).

[0127] According to this, the wiring for the refrigerant sensor (140) and the wiring for the motor (101) can be laid out to match. This prevents the wiring from getting in the way when removing other components.

[0128] (9-8) Feature 8 In the indoor unit (30) of this embodiment, the gearbox (200) has an insertion hole (215) formed at a height above the sensor fixing portion (300b) through which the sensor wiring (H1) and electrical wiring (H2) are inserted so as to extend to the outside of the gearbox (200). The gearbox (200) further includes a hook portion (220) that restricts the arrangement of the sensor wiring (H1) and electrical wiring (H2) so that after the sensor wiring (H1) and electrical wiring (H2) extend downward from the insertion hole (215), they extend upward toward the electrical component box (65).

[0129] According to this, water droplets adhering to the electrical wiring (H2) or sensor wiring (H1) will flow along the electrical wiring (H2) or sensor wiring (H1) towards the hook portion (220), thus preventing them from entering the drive mechanism fixing portion (211). This helps to prevent failure of the motor (101) and refrigerant sensor (140).

[0130] (9-9) Feature 9 In the indoor unit (30) of this embodiment, the gearbox (200) is positioned to the side of the damper (90).

[0131] According to this, the space to the side of the damper (90) can be effectively utilized to position the gearbox (200).

[0132] (9-10) Feature 10 In the indoor unit (30) of this embodiment, the gearbox (200) is located below the drain pan (50).

[0133] According to this, the space below the drain pan (50) can be effectively utilized to position the gearbox (200). By effectively utilizing the available space in this way, the product (indoor unit (30)) can be made more compact.

[0134] (9-11) Feature 11 In the indoor unit (30) of this embodiment, the gearbox (200) is positioned above the bottom panel (44) of the casing (40) and at a predetermined distance from the bottom panel (44).

[0135] This allows the bottom surface of the gearbox (200) and bottom A gap is formed between the top surface of the front panel (44) and the gearbox (200). In this way, the gearbox (200) is positioned higher than the bottom panel (44), so even if water accumulates on the bottom panel (44) due to water leakage inside the casing (40), it is possible to prevent water from entering the inside of the gearbox (200). Consequently, it is possible to prevent failure of the refrigerant sensor (140) due to water ingress.

[0136] (9-12) Feature 12 In the indoor unit (30) of this embodiment, the gearbox (200) has a sensor box housing space (231) formed at the lower part of the gearbox (200), and an opening (232) that communicates with the sensor box housing space (231) and opens toward the front panel portion (41). The sensor box (300) is housed in the sensor box housing space (231) via the opening (232).

[0137] According to this, the sensor box (300) containing the refrigerant sensor (140) can be removed from the gearbox (200) through the opening (232). Since only the refrigerant sensor (140) can be removed from the gearbox (200) in this way, the maintainability, such as the replacement of the refrigerant sensor (140), can be improved.

[0138] (10) Other embodiments The above embodiment may also have the following configuration.

[0139] The indoor unit (30) of the air conditioning system (10) may be wall-mounted or ceiling-mounted. The air conditioning system (10) may also be a humidity control device that adjusts the humidity of the target space, an air purifier that cleans the air of the target space, or a ventilation device that ventilates the target space.

[0140] The opening / closing member (90) may open and close outlets such as the first outlet (51) and the second outlet (54). In this case, such outlets constitute the first flow path (P1). The opening / closing member (90) may be, for example, a flap that opens and closes the outlet of a wall-mounted indoor unit. The opening / closing member (90) may open and close the airflow path of an outdoor unit. The opening / closing member (90) may be a shutter or a ball valve driven by a drive mechanism (100).

[0141] The gearbox (200) may be provided in the outdoor unit (20).

[0142] The gearbox (200) and the sensor box (300) may be separate components. In other words, the sensor box (300) does not need to be housed inside the gearbox (200).

[0143] The drive mechanism fixing part (211) can be any member to which the drive mechanism (100) is attached, and does not have to be a member that houses the drive mechanism (100), such as a gearbox (200). In this case, the gearbox (200) houses both the drive mechanism fixing part (211) and the sensor fixing part (300b).

[0144] The drive mechanism (100) may be housed in a case provided with a drive mechanism fixing part (211). In this case, the housing part (200) houses the case and the sensor box (300).

[0145] The intake grille (41a) may constitute the front panel portion (41) of the casing (40). In this case, when the intake grille (41a) is removed from the casing (40), the gearbox (200) may be positioned so that it is exposed to the outside when viewed from the front of the indoor unit (30). In other words, the first mounting portion (211) and the second mounting portion (300b) are exposed to the outside.

[0146] The gearbox (200) may be used as the first mounting section (211). Alternatively, the sensor box (300) may be used as the second mounting section (300b).

[0147] The drive mechanism fixing part (211) may consist only of the motor fixing part (211a).

[0148] At least a portion of the sensor fixing part (300b) needs to be positioned below the output shaft (102). Alternatively, the refrigerant sensor (140) attached to the sensor fixing part (300b) may be positioned below the output shaft (102).

[0149] The sensor fixing portion (300b) may be positioned such that, when viewed from above, the entire sensor fixing portion (300b) overlaps with the motor (101).

[0150] The sensor fixing portion (300b) may be provided such that, when viewed from the front of the gearbox (200), the entire drive mechanism fixing portion (211) is located above the sensor fixing portion (300b), or the motor fixing portion (211a) may be provided so that it is located above the sensor fixing portion (300b).

[0151] The sensor fixing portion (300b) may be positioned directly below at least a portion of the drive mechanism fixing portion (211) when viewed from the front of the gearbox (200). This helps to prevent the length of the casing (40) in the width direction (left-right direction) from increasing, thereby enabling a more compact indoor unit (30).

[0152] The sensor fixing part (300b) may be positioned directly below at least a portion of the drive mechanism fixing part (211) when viewed from above inside the gearbox, or it may be positioned directly below the entire drive mechanism fixing part (211). This allows for effective use of the space below the drive mechanism fixing part (211).

[0153] The sensor wiring (H1) of the refrigerant sensor (140) only needs to extend to the electrical component box (65) together with the electrical wiring (H2) of the motor (101), and does not need to pass through the drive mechanism fixing part (211).

[0154] While embodiments and modifications have been described above, it will be understood that a variety of changes in form and details are possible without departing from the spirit and scope of the claims. Furthermore, these embodiments and modifications may be combined or substituted as appropriate, as long as they do not impair the functions of the subject matter of this disclosure. The terms “First,” “Second,” etc., used above are used to distinguish the phrases to which these terms are attached, and do not limit the number or order of such phrases. [Industrial applicability]

[0155] As explained above, this disclosure is useful for air conditioning systems. [Explanation of Symbols]

[0156] 10. Air conditioning system 31 Indoor heat exchanger (heat exchanger) 40 Casing 41 Front panel section 44. Bottom panel (base plate) 50 Drain pan 51 1st outlet 54 2nd outlet 90 Damper (opening / closing component) 100 Drive mechanism 101 Motor 102 Output shaft 110 gear 120 Rotating shaft member 140 Refrigerant Sensor 200 Gearbox (Housing) 220 Hook section (regulating member) 231 Sensor box housing space (Accommodation space) 232 Aperture 300 Sensor Box (Housing Case) H1 Sensor wiring (first wiring) H2 Electrical Wiring (Second Wiring) P Airflow channel P1 First channel

Claims

1. A casing (40) having an air passage (P), The first flow path (P1) included in the aforementioned air flow path (P), The opening / closing member (90) opens and closes the first flow path (P1), A drive mechanism (100) for driving the opening / closing member (90), A refrigerant sensor (140) for detecting refrigerant leaking into the casing (40), The first mounting portion (211) to which the drive mechanism (100) is attached, The refrigerant sensor (140) is attached to a second mounting portion (300b), The casing (40) comprises a housing (200) having the first mounting portion (211) and the second mounting portion (300b) inside, positioned facing the front panel portion (41) that constitutes the casing (40). Air conditioning system.

2. The second mounting portion (300b) is positioned closer to the front panel portion (41) than the first mounting portion (211). The air conditioning device according to claim 1.

3. The second mounting portion (300b) is provided such that, when viewed from the front of the housing portion (200), at least a portion of the first mounting portion (211) is positioned above the second mounting portion (300b). The air conditioning device according to claim 1.

4. The device further comprises a rotating shaft member (120) that connects the opening / closing member (90) and the drive mechanism (100), The aforementioned drive mechanism (100) is A motor (101) having an output shaft (102), The motor (101) has a gear (110) that transmits the rotational force to the rotating shaft member (120), The second mounting portion (300b) is positioned closer to the front panel portion (41) than the rotating shaft member (120). An air conditioning device according to any one of claims 1 to 3.

5. The axis of the output shaft (102) is positioned above the axis of the gear (110). At least a portion of the second mounting portion (300b) or the refrigerant sensor (140) attached to the second mounting portion (300b) is positioned below the output shaft (102). The air conditioning device according to claim 4.

6. The second mounting portion (300b) is positioned such that, when viewed from above, at least a portion of the second mounting portion (300b) overlaps with the motor (101). The air conditioning device according to claim 4.

7. The electrical component box (65) is located above the aforementioned housing section (200) and houses predetermined electrical components. The first wiring (H1) of the refrigerant sensor (140) extends from the housing (200) to the electrical component box (65) together with the second wiring (H2) of the motor (101). The air conditioning device according to claim 4.

8. The housing portion (200) is formed at a height above the second mounting portion (300b) and has an insertion hole (215) through which the first wiring (H1) and the second wiring (H2) are inserted so as to extend to the outside of the housing portion (200). The system further includes a restricting member (220) that restricts the arrangement of the first wiring (H1) and the second wiring (H2) so that they extend downward from the insertion hole (215) and then upward toward the electrical component box (65). The air conditioning device according to claim 7.

9. The housing portion (200) is positioned to the side of the opening / closing member (90). An air conditioning device according to any one of claims 1 to 3.

10. A heat exchanger (31) is arranged in the aforementioned air passage (P), The heat exchanger (31) is further equipped with a drain pan (50) located below it. The aforementioned storage section (200) is positioned below the drain pan (50). An air conditioning device according to any one of claims 1 to 3.

11. The casing (40) includes a bottom plate (44) that forms the bottom surface of the casing (40), The housing section (200) is positioned above the bottom plate (44) and at a predetermined distance from the bottom plate (44). An air conditioning device according to any one of claims 1 to 3.

12. The first mounting portion (211) constitutes the housing portion (200) that houses the drive mechanism (100), The second mounting portion (300b) constitutes a housing case (300) for housing the refrigerant sensor (140). The aforementioned housing section (200) is The storage space (231) formed at the lower part of the storage section (200) and It has an opening (232) that communicates with the storage space (231) and opens toward the front panel portion (41), The storage case (300) is housed in the storage space (231) through the opening (232). An air conditioning device according to any one of claims 1 to 3.

13. The air passage (P) is provided with a heat exchanger (31) that functions as a radiator and an evaporator, The casing (40) is A first outlet (51) that blows air from the aforementioned air passage (P) into the target space, It has a second outlet (54) located above the first outlet (51) that blows air from the air passage (P) into the target space, The first flow path (P1) is the first outlet (51), or a flow path continuous with the first outlet (51). An air conditioning device according to any one of claims 1 to 3.

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