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JP-7856932-B2 - Air conditioning system

JP7856932B2JP 7856932 B2JP7856932 B2JP 7856932B2JP-7856932-B2

Inventors

  • 村田　遥
  • 池部 政典

Assignees

  • ダイキン工業株式会社

Dates

Publication Date
20260512
Application Date
20250227
Priority Date
20240329

Claims (13)

  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), An air conditioning device comprising 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).
  2. The air conditioning device according to claim 1, wherein the second mounting portion (300b) is positioned closer to the front panel portion (41) than the first mounting portion (211).
  3. The air conditioning device according to claim 1, wherein 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).
  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 air conditioning device according to any one of claims 1 to 3, wherein the second mounting portion (300b) is positioned closer to the front panel portion (41) than the rotating shaft member (120).
  5. The axis of the output shaft (102) is positioned above the axis of the gear (110). The air conditioning device according to claim 4, wherein 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).
  6. The air conditioning device according to claim 4, wherein the second mounting portion (300b) is arranged such that, when viewed from above, at least a portion of the second mounting portion (300b) overlaps with the motor (101).
  7. The electrical component box (65) is located above the aforementioned housing section (200) and houses predetermined electrical components. The air conditioning device according to claim 4, wherein 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).
  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 air conditioning device according to claim 7, further comprising 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).
  9. The air conditioning device according to any one of claims 1 to 3, wherein the housing section (200) is arranged to the side of the opening/closing member (90).
  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 air conditioning device according to any one of claims 1 to 3, wherein the housing section (200) is located below the drain pan (50).
  11. The casing (40) includes a bottom plate (44) that forms the bottom surface of the casing (40), The air conditioning device according to any one of claims 1 to 3, wherein the housing section (200) is positioned above the bottom plate (44) and at a predetermined distance from the bottom plate (44).
  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 housing portion (200) has a housing space (231) formed at its lower part and an opening (232) that communicates with the housing space (231) and opens toward the front panel portion (41), The air conditioning device according to any one of claims 1 to 3, wherein the housing case (300) is housed in the housing space (231) through the opening (232).
  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 air conditioning device according to any one of claims 1 to 3, wherein the first flow path (P1) is the first air outlet (51) or a flow path continuous with the first air outlet (51).

Description

This disclosure relates to an air conditioning system. The air conditioning system described in Patent Document 1 has an indoor unit equipped with a refrigerant gas sensor. The refrigerant gas sensor detects refrigerant leaking into the indoor unit. Japanese Patent Publication No. 2016-90107 Figure 1 is a piping diagram of the refrigerant circuit of the air conditioning system in this embodiment.Figure 2 is a three-dimensional perspective view showing the exterior of the indoor unit of this embodiment.Figure 3 is a cross-sectional view of the indoor unit shown in Figure 2, taken along the line III-III.Figure 4 is a front view of the indoor unit with the front panel removed.Figure 5 is a side view of the drain pan and gearbox of the indoor unit.Figure 6 is a rearward perspective view of the damper unit.Figure 7 is a view of the drive mechanism and refrigerant sensor from above.Figure 8 is an exploded perspective view of the sensor box.Figure 9 is an exploded perspective view of the gearbox.Figure 10 shows the mounting of the sensor box to the gearbox.Figure 11 is a three-dimensional perspective view of the gearbox.Figure 12 shows the gearbox viewed from the right side with the right-side housing removed. <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). (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) provides air conditioning to the target space. (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). 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. The outdoor heat exchanger (22) exchanges heat between the refrigerant flowing inside and the outdoor air via the outdoor fan (25). The outdoor fan (25) transports outside air to the outdoor heat exchanger (22). The four-way diverter valve (24) switches the flow path of the refrigerant circuit (11). The four-way diverter 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. The expansion valve (23) reduces the pressure of the refrigerant. The expansion valve (23) is an electronically controlled expansion valve with adjustable opening. (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 equipment 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. (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 plate (45). The bottom panel (44) is an example of a bottom plate (44). 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). 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 integrally formed. The casing (40) has a fi