air conditioner

Abstract

One embodiment of an air conditioner according to the present disclosure is provided with: an indoor unit; an outdoor unit; a refrigerant pipe that connects the indoors and the outdoors; a ventilation device that ventilates indoor air; and electrical wiring that extends from the indoor unit or the outdoor unit and is connected to the ventilation device. The ventilation device includes: a ventilation pipe that passes through the through-hole from indoors and is drawn out to the outdoors; a base part that is connected to the ventilation pipe outdoors; a ventilation fan that is supported by the base part; and a case that covers the ventilation fan. The base part includes: a base body that supports the ventilation fan at the front surface part thereof facing the opposite side to the wall; and an installation plate disposed between the base body and the wall surface. The electrical wiring includes: a first wiring part extending in a vertical direction between the base body and the installation plate; a folded part folded upward at the lower end of the first wiring part; a second wiring part extending upward from the folded part; and a terminal part positioned at the upper end of the second wiring part and connected to the ventilation fan.

Description

[Technical Field]

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

[0002] In recent years, air conditioners that maintain a comfortable indoor temperature environment by exchanging heat with indoor air using a heat exchanger inside the indoor unit and supplying the air indoors have become common. Since these air conditioners only circulate the indoor air using the indoor unit and do not ventilate the air with the outdoors, the indoor air becomes polluted if the room is left sealed for a long period of time. Therefore, air conditioners equipped with a ventilation unit that exhausts indoor air to the outdoors have been disclosed (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 3570260 Summary of the Invention [Problem to be solved by the invention]

[0004] To ensure quietness, it is preferable to place the ventilation fan of the ventilation system outdoors. In this case, a structure is required to protect the terminals of the electrical wiring connected to the ventilation fan from rainwater.

[0005] In view of the above circumstances, the present disclosure has an object to provide an air conditioner that can protect terminals of electrical wiring connected to a ventilation device from rainwater. [Means for solving the problem]

[0006] One aspect of an air conditioner according to the present disclosure includes an indoor unit installed indoors and having a first heat exchanger, an outdoor unit installed outdoors and having a second heat exchanger, refrigerant piping that passes through a through-hole in a wall separating the indoor space from the outdoor space and connects the first heat exchanger and the second heat exchanger, a ventilation device that ventilates the air in the room, and electrical wiring that extends from the indoor unit or the outdoor unit and is connected to the ventilation device, and the ventilation device includes a ventilation piping that passes from the indoor space to the outdoor space through the through-hole and is connected to the ventilation piping outside the room. the base body has a rear surface facing the wall and a front surface facing the opposite side of the wall, and supports the ventilation fan on the front surface; the electrical wiring has a first wiring portion extending vertically between the rear surface and the wall, a folded portion folded upward at a lower end of the first wiring portion, a second wiring portion extending upward from the folded portion, and a terminal portion located at an upper end of the second wiring portion and connected to the ventilation fan. The rear surface portion is provided with a pair of protrusions extending parallel to the vertical direction, the first wiring portion is disposed between the pair of protrusions, the base body has an air passage extending vertically therein and a pipe portion connected at an upper end to the ventilation piping, and at least one of the pair of protrusions is provided on an outer surface of the pipe portion. . [Effects of the Invention]

[0007] According to the present disclosure, it is possible to provide an air conditioner that can protect the terminals of the electrical wiring connected to the ventilation device from rainwater. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram showing a general configuration of an air conditioner according to an embodiment. [Figure 2] 1 is a schematic side view of an installation state of an air conditioner according to an embodiment. FIG. [Figure 3] 1 is a schematic perspective view of an installation state of an air conditioner according to an embodiment. [Figure 4] FIG. 2 is an exploded view of the ventilation device main body according to the embodiment. [Figure 5] FIG. 2 is a perspective view of the ventilation device main body according to the embodiment. [Figure 6] FIG. 2 is a front view of the ventilation device main body according to the embodiment. [Figure 7] FIG. 2 is a rear view of the ventilation device main body according to the embodiment. [Figure 8] FIG. 2 is a top view of the ventilation device main body according to the embodiment. [Figure 9] 9 is a cross-sectional view of the joint member and the pipe portion taken along line IX-IX in FIG. 6. [Figure 10] 7 is a cross-sectional view of the joint member and the pipe portion taken along line XX in FIG. 6. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that the scope of the present disclosure is not limited to the following embodiments and can be modified as desired within the scope of the technical concept of the present disclosure. In addition, in the following drawings, the scale and number of each structure may differ from the scale and number of the actual structure in order to make each configuration easier to understand.

[0010] The drawings also show the X-axis, Y-axis, and Z-axis as appropriate. The X-axis indicates one of the horizontal directions. The Y-axis indicates the other of the horizontal directions. The Z-axis indicates the vertical direction. In the following description, the horizontal direction along the X-axis is referred to as the "front-rear direction X," the horizontal direction along the Y-axis is referred to as the "left-right direction Y," and the vertical direction is referred to as the "vertical direction Z." The front-rear direction X, left-right direction Y, and vertical direction Z are perpendicular to each other. In the following description, the side of the vertical direction Z toward which the Z-axis arrow points (+Z direction) is referred to as the upside, and the side of the vertical direction Z opposite to the side toward which the Z-axis arrow points (-Z direction) is referred to as the downside. Furthermore, the side of the front-rear direction X toward which the X-axis arrow points (+X direction) is referred to as the front, and the side of the front-rear direction X opposite to the side toward which the X-axis arrow points (-X direction) is referred to as the rear. In addition, the side of the left-right direction Y toward which the Y-axis arrow points (+Y direction) is defined as the left, and the side opposite to the side toward which the Y-axis arrow points (-Y direction) is defined as the right.

[0011] <Overall structure> FIG. 1 is a schematic diagram showing the general configuration of an air conditioner 100 according to the present embodiment. As shown in FIG. 1, the air conditioner 100 comprises an outdoor unit 10, an indoor unit 20, a circulation path section (refrigerant piping) 18, and a ventilation device 30. The outdoor unit 10 is disposed outdoors 7. The indoor unit 20 is disposed indoors 8. The outdoor unit 10 and the indoor unit 20 are connected to each other by a circulation path section 18 through which a refrigerant 19 circulates. A portion of the ventilation device 30 is disposed indoors 8, and another portion is disposed outdoors 7. The ventilation device 30 discharges air from the room 8 in which the indoor unit 20 is disposed to the outdoors 7.

[0012] The air conditioner 100 is capable of adjusting the temperature of the air in the room 8 by exchanging heat between the refrigerant 19 flowing in the circulation path portion 18 and the air in the room 8 in which the indoor unit 20 is located. Examples of the refrigerant 19 include fluorine-based refrigerants and hydrocarbon-based refrigerants, which have a low global warming potential (GWP).

[0013] The outdoor unit 10 includes an outdoor unit housing 11, a compressor 12, a heat exchanger 13, a flow control valve 14, a blower 15, a four-way valve 16, and a control unit 17. The outdoor unit housing 11 houses the compressor 12, the heat exchanger 13, the flow control valve 14, the blower 15, the four-way valve 16, and the control unit 17.

[0014] The compressor 12, the heat exchanger 13, the flow rate control valve 14, and the four-way valve 16 are provided in a portion of the circulation path 18 that is located inside the outdoor unit housing 11. The compressor 12, the heat exchanger 13, the flow rate control valve 14, and the four-way valve 16 are connected by a portion of the circulation path 18 that is located inside the outdoor unit housing 11.

[0015] The four-way valve 16 is provided in a portion of the circulation path section 18 that is connected to the discharge side of the compressor 12. The four-way valve 16 can reverse the direction of the refrigerant 19 flowing through the circulation path section 18 by switching a portion of the path of the circulation path section 18. When the path connected by the four-way valve 16 is the path shown by the solid line on the four-way valve 16 in Fig. 1, the refrigerant 19 flows through the circulation path section 18 in the direction shown by the solid arrow in Fig. 1. On the other hand, when the path connected by the four-way valve 16 is the path shown by the dashed line on the four-way valve 16 in Fig. 1, the refrigerant 19 flows through the circulation path section 18 in the direction shown by the dashed arrow in Fig. 1.

[0016] The indoor unit 20 includes an indoor unit housing 21, a heat exchanger 22, a blower 23 as a blower, and a control unit 24. The indoor unit housing 21 houses the heat exchanger 22, the blower 23, and the control unit 24 inside. The indoor unit 20 is capable of cooling operation to cool the air in the room 8 in which the indoor unit 20 is located, and heating operation to warm the air in the room 8 in which the indoor unit 20 is located. Note that the blower 23 is shown schematically in FIG. 1.

[0017] When the indoor unit 20 is in cooling operation, the refrigerant 19 flowing in the circulation path portion 18 flows in the direction shown by the solid arrow in Fig. 1. In other words, when the indoor unit 20 is in cooling operation, the refrigerant 19 flowing in the circulation path portion 18 circulates through the compressor 12, the heat exchanger 13 of the outdoor unit 10, the flow control valve 14, and the heat exchanger 22 of the indoor unit 20 in that order, before returning to the compressor 12. During cooling operation, the heat exchanger 13 in the outdoor unit 10 functions as a condenser, and the heat exchanger 22 in the indoor unit 20 functions as an evaporator.

[0018] On the other hand, when the indoor unit 20 is in heating operation, the refrigerant 19 flowing in the circulation path portion 18 flows in the direction shown by the dashed line in Fig. 1. In other words, when the indoor unit 20 is in heating operation, the refrigerant 19 flowing in the circulation path portion 18 circulates through the compressor 12, the heat exchanger 22 of the indoor unit 20, the flow control valve 14, and the heat exchanger 13 of the outdoor unit 10 in that order, before returning to the compressor 12. In heating operation, the heat exchanger 13 in the outdoor unit 10 functions as an evaporator, and the heat exchanger 22 in the indoor unit 20 functions as a condenser.

[0019] <Indoor unit> 2 and 3 are schematic diagrams showing the installation state of the air conditioner 100 according to the embodiment. 2, the indoor unit 20 is a wall-mounted indoor unit that is fixed to an upper region of a wall surface 9a of the room 8. The indoor unit 20 has a generally rectangular parallelepiped shape that is long in the left-right direction Y.

[0020] As shown in Fig. 2, the blower 23 is housed in the indoor unit housing 21. The blower 23 extends in the left-right direction Y. The blower 23 rotates around a rotation axis by a fan motor 23a. The heat exchanger 22 is disposed inside the indoor unit housing 21, between the blower 23 and the indoor unit air inlet 20a. The heat exchanger 22 extends in the left-right direction Y.

[0021] The indoor unit casing 21 has an outer shell member 21b and an air passage member 21d. The outer shell member 21b is a member that constitutes part of the outer shell of the indoor unit casing 21. The outer shell member 21b improves the design of the exterior of the indoor unit 20. The outer shell member 21b is in the shape of a roughly rectangular parallelepiped box that opens on the wall surface 9a side. The opening of the outer shell member 21b on the wall surface 9a side is closed by the air passage member 21d. The air passage member 21d is a member that constitutes part of the air passage through which air drawn into the indoor unit casing 21 by the blower 23 passes. The air passage member 21d is hooked onto an installation plate (not shown) that is fixed to the wall surface 9a on the room 8 side. This fixes the indoor unit 20 to the wall surface 9a.

[0022] The indoor unit casing 21 has an indoor unit inlet 20a and an indoor unit outlet 20b. In this embodiment, the indoor unit inlet 20a and the indoor unit outlet 20b are formed in the outer shell member 21b. The indoor unit inlet 20a opens upward and extends in the axial direction. A filter (not shown) is disposed in the indoor unit inlet 20a. On the other hand, the indoor unit outlet 20b opens toward the room 8 and extends in the axial direction. An air direction control vane 25 is disposed in the indoor unit outlet 20b.

[0023] Air from the room 8 is drawn into the indoor unit housing 21 through the indoor unit inlet 20a by driving the blower 23. The air drawn into the indoor unit housing 21 through the indoor unit inlet 20a passes through the heat exchanger 22 and is blown out into the room 8 from the indoor unit outlet 20b. The air passing through the indoor unit outlet 20b is blown by the air direction control vane 25 in the vertical direction Z and the left-right direction Y of the room 8.

[0024] A control unit 24 is provided inside the indoor unit housing 21. The control unit 24 is disposed inside the indoor unit housing 21 at one end in the left-right direction Y. The control unit 24 controls the fan motor 23a, the airflow direction control vane 25, the heat exchanger 22, etc.

[0025] The external shape of the indoor unit housing 21 is a rectangular pillar extending in the left-right direction Y. The indoor unit housing 21 has an upper surface 21p facing upward and a lower surface 21q facing downward. The indoor unit air inlet 20a is provided on the upper surface 21p. The indoor unit air outlet 20b is provided on the lower surface 21q.

[0026] As shown in Fig. 3, a drain hose 20d is provided to the indoor unit 20. The tip of the drain hose 20d extends to the outdoors 7. The drain hose 20d discharges drain water that condenses on the heat exchanger 22 to the outdoors 7 during cooling.

[0027] <Outdoor unit> The outdoor unit 10 is placed outdoors 7. The outdoor unit housing 11 has an outdoor unit inlet 11b and an outdoor unit outlet 11a. Inside the outdoor unit housing 11, a blower 15 (see FIG. 1) sends air from the outdoor unit inlet 11b side through a heat exchanger 13 (see FIG. 1) toward the outdoor unit outlet 11a, promoting heat exchange in the heat exchanger 13.

[0028] As shown in FIG. 3 , the outdoor unit 10 and the indoor unit 20 are connected by a circulation path section 18 and a first electrical wiring 10e. The circulation path section 18 is configured in a loop shape between the outdoor unit 10 and the indoor unit 20. Therefore, the circulation path section 18 connects the outdoor unit 10 and the indoor unit 20 with a pair of pipes. The first electrical wiring 10e includes a power supply line that supplies power to the outdoor unit 10 via the indoor unit 20, and a signal line for controlling the outdoor unit 10 and the indoor unit 20 in cooperation with each other. The circulation path section 18 and the first electrical wiring 10e pass through a through-hole 9h provided in the wall 9 that separates the indoor space 8 from the outdoor space 7. As a result, the circulation path section 18 and the first electrical wiring 10e are drawn from the indoor space 8 to the outdoor space 7.

[0029] <Ventilation equipment> The ventilation device 30 is a device that ventilates the room 8 by discharging the air from the room 8 to the outside 7, thereby keeping the air in the room 8 clean. The ventilation device 30 may be driven in conjunction with the indoor unit 20 and the outdoor unit 10, or may be driven independently of these.

[0030] The ventilation device 30 has a ventilation intake section 32, ventilation piping 31, a ventilation device main body 50, and electrical wiring 30e. The ventilation intake section 32 is attached to the indoor unit 20 in the room 8. The ventilation device main body 50 is installed on a wall surface 9b of the outdoor room 7. The ventilation piping 31 extends across the indoor room 8 and the outdoor room 7.

[0031] The ventilation intake section 32 draws in air from the room 8. The ventilation intake section 32 is provided on the surface of the indoor unit casing 21. In the present embodiment, the ventilation intake section 32 is located on the lower surface 21q of the indoor unit casing 21.

[0032] The ventilation pipe 31 is a tubular pipe. The ventilation pipe 31 connects the ventilation device main body 50 and the ventilation intake section 32. Therefore, one end of the ventilation pipe 31 is located inside the room 8, and the other end is located outside the room 7. The ventilation pipe 31 passes through the inside of the indoor unit housing 21 and the through-hole 9h in the wall 9, and is drawn out to the outside the room 7.

[0033] The electrical wiring 30e extends from the indoor unit 20 and is connected to the ventilation device main body 50. The electrical wiring 30e supplies power to the ventilation device main body 50. The electrical wiring 30e may also include a signal line that transmits a control signal for controlling the ventilation device main body 50. The electrical wiring 30e extends from the outdoor unit 10 together with the ventilation piping 31 and passes through the through-hole 9h in the wall 9. Furthermore, the electrical wiring 30e extends along the wall surface 9b together with the ventilation piping 31 and is routed to the ventilation device main body 50.

[0034] The electrical wiring 30e of the present embodiment connects the control unit 24 of the indoor unit 20 and the ventilation device main body 50. However, as shown in FIG. 1, a modified electrical wiring 130e may be employed that connects the control unit 17 of the outdoor unit 10 and the ventilation device main body 50. When the modified electrical wiring 130e is employed, the electrical wiring 130e is routed from the outdoor unit 10 to the through-hole 9h in the wall 9 together with the first electrical wiring 10e shown in FIG. 3. Furthermore, the electrical wiring 130e is folded back without passing through the through-hole 9h, and extends along the wall surface 9b together with the ventilation piping 31 to the ventilation device main body 50.

[0035] FIG. 4 is an exploded view of the ventilation device main body 50. As shown in FIG. In the following description of the ventilation device main body 50, the direction perpendicular to the vertical direction Z along the wall surface 9b to which the ventilation device main body 50 is attached is the left-right direction Y, and the direction perpendicular to the wall surface 9b is the front-rear direction X. Furthermore, in the following description, among the directions perpendicular to the wall surface 9b, the direction away from the wall surface 9b is referred to as the forward (+X direction), and the direction approaching the wall surface 9b is referred to as the backward (-X direction). Furthermore, in the following description of the ventilation device main body 50, left and right are defined based on the posture of an observer facing forward (+X direction). In other words, the left-hand side of an observer facing the opposite side (+X direction) of the wall surface 9b is referred to as the left side (+Y direction), and the right-hand side is referred to as the right side (-Y direction). In this embodiment, the left-right direction of the ventilation device main body 50 and the left-right direction of the outdoor unit 10 coincide with each other, but these left-right directions do not necessarily have to coincide with each other.

[0036] The ventilation device main body 50 has a base 80, a joint member 75, a backflow check valve 53, a ventilation fan 51, a duct member 52, and a case 40.

[0037] The base 80 is fixed to the wall surface 9b with fixing screws (not shown). The base 80 supports other components of the ventilation device main body 50. The ventilation piping 31 (see FIG. 3) is connected to the base 80. The base 80 has a base main body 60, an installation plate 70, and a drain valve 69.

[0038] The mounting plate 70 is a plate-shaped member made of sheet metal. The mounting plate 70 is disposed between the base body 60 and the wall surface 9b. The mounting plate 70 protects the wall surface 9b. The upper end of the case 40 is engaged with the upper end 70a of the mounting plate 70. The lower end of the case 40 is screwed to the lower end 70c of the mounting plate 70.

[0039] The base main body 60 has a first member 61 and a second member 62 that are assembled together in the front-rear direction X. An air passage 60F is provided inside the base main body 60. The air passage 60F is formed mainly between the first member 61 and the second member 62.

[0040] The first member 61 forms the rear portion of the base body 60. On the other hand, the second member 62 forms the front portion of the base body 60. The second member 62 supports the ventilation fan 51. The ventilation fan 51 is fixed to a region of the second member 62 facing forward. The second member 62 is provided with an opening 62a that penetrates the second member 62 in the front-to-rear direction X. The downstream end of the air passage 60F opens forward at the opening 62a. The opening 62a is covered by the ventilation fan 51.

[0041] A drain hole (not shown) is provided in base body 60 to connect air passage 60F to the outside space. The drain hole drains condensed water that accumulates in air passage 60F. A drain valve 69 is attached to the drain hole. Drain valve 69 closes the drain hole when ventilation fan 51 is driven and negative pressure is created in the air passage.

[0042] 5 is a perspective view of the ventilation device main body 50 as seen obliquely from behind. Note that the installation plate 70 is not shown in FIG. 5, the base main body 60 has a frame-shaped portion 63 that is rectangular in plan view, an introduction portion 64c that is arranged inside the frame-shaped portion 63, and a pipe portion 64b that is arranged to the right (-Y direction) of the frame-shaped portion 63. The frame-shaped portion 63, the introduction portion 64c, and the pipe portion 64b are formed by assembling a first member 61 and a second member 62, respectively, in the front-rear direction X.

[0043] Pipe portion 64b protrudes rightward (in the -Y direction) from the side surface of frame portion 63 and then extends upward. The internal space of pipe portion 64b forms the upstream region of air passage 60F. Pipe portion 64b is connected to ventilation piping 31 (see FIG. 3).

[0044] 5, introduction portion 64c is surrounded by frame portion 63. Introduction portion 64c has a hollow portion that is connected to the internal space of pipe portion 64b and forms the downstream region of air passage 60F. Air passage 60F within introduction portion 64c is connected to the intake port of ventilation fan 51. Introduction portion 64c serves to guide the air within air passage 60F to ventilation fan 51.

[0045] The frame-shaped portion 63 has plate-shaped upper plate portion 63a, right plate portion 63b, and left plate portion 63c. The upper plate portion 63a extends horizontally. The upper plate portion 63a is located above the introduction portion 64c. The right plate portion 63b extends downward from the right end of the upper plate portion 63a. The right plate portion 63b is located to the right of the introduction portion 64c. The left plate portion 63c extends downward from the left end of the upper plate portion 63a.

[0046] The introduction portion 64c and the rearward-facing surface of the pipe portion 64b form the back surface portion 60e of the base main body 60. The introduction portion 64c and the forward-facing surface of the pipe portion 64b form the front surface portion 60d of the base main body 60. The back surface portion 60e is not limited to only a region facing the +X-axis direction in the strict sense, but also includes a region having a +X-direction component in the normal direction. Similarly, the front surface portion 60d is not limited to only a region facing the +X-axis direction in the strict sense, but also includes a region having a +X-direction component in the normal direction.

[0047] The back surface portion 60e is provided with a pair of protrusions 66, 67 aligned in the left-right direction Y. In the following description, of the pair of protrusions 66, 67, the one located on the left is referred to as a first protrusion (protrusion) 66, and the other located on the right is referred to as a second protrusion (protrusion) 67. The first protrusion 66 and the second protrusion 67 extend parallel to each other in the vertical direction Z.

[0048] In this specification, the expression "extending in a specific direction" means that the direction in which the object (or space) extends has a component in that specific direction over its entire length, and is not to be interpreted in a restrictive sense as being parallel to that specific direction over its entire length.

[0049] The first protrusion 66 is positioned to the left (+Y direction) of the second protrusion 67. The first protrusion 66 extends, continuing from the right plate 63b of the frame-shaped portion 63. The first protrusion 66 has a first extending portion 66a connected to the lower end of the right plate 63b, and a second extending portion 66b connected to the lower end of the first extending portion 66a. The first extending portion 66a extends at an angle toward the left (+Y direction) as it extends downward. The second extending portion 66b extends parallel to the vertical direction Z.

[0050] The second protrusion 67 is provided on the pipe portion 64b. The second protrusion 67 has a guide portion 67g, a tapered portion 67t connected to the lower end of the guide portion 67g, a third extension 67a connected to the lower end of the tapered portion 67t, a fourth extension 67b connected to the lower end of the third extension 67a, and a fifth extension 67c connected to the lower end of the fourth extension 67b. The guide portion 67g is provided on the upper end 64a of the pipe portion 64b. The tapered portion 67t protrudes upward and downward. The guide portion 67g, the tapered portion 67t, and the third extension 67a extend parallel to the vertical direction Z. The guide portion 67g, the tapered portion 67t, and the third extension 67a extend parallel to the right plate portion 63b of the frame-shaped portion 63. The fourth extending portion 67b extends at an angle toward the left (+Y direction) as it extends downward. The fourth extending portion 67b extends parallel to the first extending portion 66a. The fifth extending portion 67c extends parallel to the vertical direction Z. The fifth extending portion 67c extends parallel to the second extending portion 66b.

[0051] Between the first protrusion 66 and the second protrusion 67, a gap 6 is provided, extending in the vertical direction Z with a substantially constant width in the left-right direction Y. The gap 6 bends in the left-right direction Y and extends in the vertical direction Z. The gap 6 extends parallel to the vertical direction Z in the region between the right plate portion 63b and the guide portion 67g, the tapered portion 67t, and the third extending portion 67a. The gap 6 extends at an angle toward the left as it extends downward in the region between the fourth extending portion 67b and the first extending portion 66a. The gap 6 also extends parallel to the vertical direction Z in the region between the fifth extending portion 67c and the second extending portion 66b. Therefore, the upper end 6a and the lower end 6b of the gap 6 are offset from each other in the left-right direction Y. The lower end 6b of the gap 6 is located to the left (+Y direction) of the upper end 6a.

[0052] The outer surface of the frame-shaped portion 63 constitutes a side surface portion 60f of the base main body 60. The side surface portion 60f is provided between the front surface portion 60d and the rear surface portion 60e. Here, the side surface portion 60f being "provided between the front surface portion 60d and the rear surface portion 60e" means that the side surface portion 60f is located on a path that traces the surface of the base main body 60 from the front surface portion 60d to the rear surface portion 60e.

[0053] The side surface portion 60f has an upper surface 60a facing upward, a right side surface 60b facing right, and a left side surface 60c facing left. The upper surface 60a is provided on the upper plate portion 63a. The right side surface 60b is provided on the right plate portion 63b. The right side surface 60b is continuous with the right end of the upper surface 60a (in the -Y direction). The left side surface 60c is provided on the left plate portion 63c. The left side surface 60c is continuous with the left end of the upper surface 60a (in the +Y direction). In this way, the side surface portion 60f faces in a direction along the wall surface 9b.

[0054] The side surface portion 60f is provided with a partitioning ridge portion 65. The partitioning ridge portion 65 extends along the wall surface 9b. The partitioning ridge portion 65 is also provided along the front edge of the first member 61. The partitioning ridge portion 65 is located rearward (toward the wall 9) of the boundary between the first member 61 and the second member 62.

[0055] The partition ridge 65 includes an upper ridge 65a provided on the upper surface 60a, a right ridge 65b provided on the right surface 60b, and a left ridge 65c provided on the left surface 60c. The upper ridge 65a, the right ridge 65b, and the left ridge 65c are a continuous ridge.

[0056] The upper surface protrusion 65a extends linearly in the left-right direction Y over the entire length of the upper surface 60a in the left-right direction Y. The upper surface protrusion 65a protrudes upward from the upper surface 60a.

[0057] The right side surface protrusion 65b extends downward from the right end of the upper surface protrusion 65a. The right side surface protrusion 65b protrudes rightward relative to the right side surface 60b. The rearward-facing surface of the right side surface protrusion 65b is connected at its lower end to the back surface portion 60e.

[0058] The left side surface protrusion 65c extends downward from the left end of the upper surface protrusion 65a. The left side surface protrusion 65c protrudes leftward relative to the left side surface 60c. As shown in FIG. 4, the lower end of the left side surface protrusion 65c reaches the lower end of the left side surface 60c. In other words, the left side surface protrusion 65c extends in the vertical direction Z over the entire length of the left side surface in the vertical direction Z.

[0059] The dividing ridge 65 divides the outer surface of the base body 60 into a rear region B and a front region F. The rear region B includes a region of the side surface 60f that is located rearward of the dividing ridge 65 (i.e., on the wall 9 side) and the back surface 60e. On the other hand, the front region F includes a region of the side surface 60f that is located on the opposite side of the rear region B from the dividing ridge 65 (i.e., the side away from the wall 9) and the front surface 60d.

[0060] It is expected that rainwater will run down from the wall surface 9b to the rear region B of the base body 60. In this embodiment, the rainwater running down the rear region B is prevented from flowing into the front region F by the partitioning protrusion 65. More specifically, the rainwater running down the rear region B of the side portion 60f flows downward along the right side surface 60b and the left side surface 60c and drips from the lower end of the base body 60 onto the ground.

[0061] 4, ventilation fan 51 includes cylindrical rotor 51a centered on a central axis extending in the front-rear direction X, fan motor 51b that rotates rotor 51a, fan box 51c that houses rotor 51a and fan motor 51b, and terminal block 51e. Ventilation fan 51 of this embodiment is a so-called sirocco fan. By rotating rotor 51a, ventilation fan 51 sends air from the inner diameter side to the outer diameter side of rotor 51a.

[0062] The fan box 51c is fixed to the front surface 60d of the base body 60. A rotor 51a and a fan motor 51b are disposed inside the fan box 51c. The fan box 51c has a fan inlet (not shown) connected to the opening 62a of the base body 60, and a fan outlet 51d facing downward. As the rotor 51a rotates, the ventilation fan 51 draws air from the air passage 60F of the base body 60 at the fan inlet and blows the air downward from the fan outlet 51d.

[0063] The terminal block 51e is fixed to the front surface 60d of the base body 60. The terminal block 51e supports a plurality of terminal connections 51g connected to the fan motor 51b. Electrical wiring 30e extending from the indoor unit 20 is connected to these terminal connections 51g.

[0064] According to this embodiment, ventilation fan 51 and its terminal block 51e are attached to the front region F of base body 60. Therefore, rainwater running down the surface of base body 60 is unlikely to reach ventilation fan 51 and terminal block 51e. That is, according to this embodiment, ventilation fan 51 and terminal block 51e can be protected from rainwater.

[0065] The backflow check valve 53 is attached to the fan outlet 51d. The backflow check valve 53 closes the fan outlet 51d. The backflow check valve 53 opens as the ventilation fan 51 blows air out of the fan outlet 51d. The backflow check valve 53 prevents air from flowing back from the fan outlet 51d toward the inside of the ventilation fan 51.

[0066] Duct member 52 is attached to case 40. Duct member 52 is disposed directly below fan outlet 51d. Duct member 52 guides air blown downward from fan outlet 51d to exhaust port 46a provided at the lower end of case 40.

[0067] The case 40 is box-shaped and opens to the rear. The case 40 is supported by a mounting plate 70. The case 40 covers the base 80 of the ventilator main body 50, the ventilation fan 51, the backflow check valve 53, and the duct member 52 from the front. In this way, the case 40 protects each part of the ventilator main body 50.

[0068] <Electrical wiring route> Next, the wiring path of the electrical wiring 30e will be described. Fig. 6 is a front view of the ventilation device main body 50. Fig. 7 is a rear view of the ventilation device main body 50. Fig. 8 is a top view of the ventilation device main body 50. Note that the installation plate 70 is not shown in Fig. 7.

[0069] 6, the electrical wiring 30e is routed together with the ventilation piping 31 from above the ventilation device main body 50 to the installation location of the ventilation device main body 50. The electrical wiring 30e passes between the base body 60 and the mounting plate 70 and is drawn out below the base body 60. Furthermore, the electrical wiring 30e is folded back upward below the base body 60 and connected to the terminal connection portion 51g of the terminal block 51e.

[0070] The electrical wiring 30e has a routing section 3a, a first wiring section 3b, a folded-back section 3c, a second wiring section 3d, and a terminal section 3e. The routing section 3a is a section that is routed along the ventilation piping 31 from the indoor unit 20 to the upper end 64a of the pipe section 64b. The routing section 3a is fixed to the ventilation piping 31 by wrapping protective tape around the ventilation piping 31.

[0071] The connection portion between the ventilation piping 31 and the pipe portion 64b of the base body 60 is covered by a cylindrical joint member 75. The joint member 75 protects the connection portion between the pipe portion 64b and the ventilation piping 31. The electrical wiring 30e in this embodiment extends in the vertical direction Z along the outer surface of the joint member 75. However, the electrical wiring 30e may be passed inside the joint member 75.

[0072] As shown in FIG. 7, the first wiring portion 3b is a portion that connects to the routing portion 3a. The first wiring portion 3b extends in the vertical direction Z between the base main body 60 and the mounting plate 70. The first wiring portion 3b is disposed in the gap 6 between the first protrusion portion 66 and the second protrusion portion 67 of the back surface portion 60e. As shown in FIG. 8, the gap 6 opens upward between the back surface portion 60e and the mounting plate 70. The worker installing the ventilator main body 50 inserts the tip of the electrical wiring 30e into the gap 6 from above the base main body 60 and pushes it downward, thereby disposing the first wiring portion 3b in the gap 6.

[0073] According to the present embodiment, the mounting plate 70 is disposed between the first wiring portion 3b and the wall surface 9b. Therefore, when the electrical wiring 30e is pushed rearward of the base body 60, damage to the electrical wiring 30e due to the uneven shape of the wall surface 9b can be suppressed.

[0074] In this embodiment, the second protrusion 67 is provided on the outer surface of the pipe portion 64b. The pipe portion 64b is connected to the ventilation pipe 31 at its upper end 64a. When a worker inserts the electrical wiring 30e into the gap 6 and aligns it along the second protrusion 67, the electrical wiring 30e is also aligned along the ventilation pipe 31.

[0075] As shown in FIG. 7, the gap 6 extends in the vertical direction Z and bends in the left-right direction Y. Therefore, the first wiring portion 3b is guided by the first protrusion 66 and the second protrusion 67 and bends and extends in the left-right direction Y. The lower end of the first wiring portion 3b is disposed to the left (+Y direction) of the upper end. As shown in FIG. 6, the terminal portion 3e is located to the left (+Y direction) of the lower end of the first wiring portion 3b. According to this embodiment, by bending the gap 6 to the left, the lower end of the first wiring portion 3b can be brought closer to the terminal block 51e, and the electrical wiring 30e can be shortened overall.

[0076] The folded portion 3c is disposed between the first wiring portion 3b and the second wiring portion 3d. The folded portion 3c is bent upward in a U-shape at the lower end of the first wiring portion 3b. The folded portion 3c extends below the base main body 60 in the front-rear direction X and the left-right direction Y.

[0077] 6, the second wiring portion 3d extends upward from the folded portion 3c and passes in front of the base main body 60.

[0078] The terminal portion 3e is connected to the upper end of the folded portion 3c. The electrical wiring 30e of this embodiment is configured by bundling three electrical wires 3k in a belt shape within an outer sheath. The outer sheath of the electrical wiring 30e is peeled off at the terminal portion 3e, exposing the three electrical wires 3k. Furthermore, the inner sheath is peeled off at the tips of the three electrical wires 3k of the terminal portion 3e, exposing the conductor wires, and round terminals are crimped to the conductor wires. The terminal portion 3e is connected to a terminal connection portion 51g of the terminal block 51e. The terminal portion 3e is also covered by a cover 51f of the terminal block 51e.

[0079] The electrical wiring 30e is arranged along the wall surface 9b in the routing portion 3a. Therefore, rainwater runs from the wall surface 9b to the routing portion 3a. Rainwater also runs from the routing portion 3a to the first wiring portion 3b, which is connected to the lower portion of the routing portion 3a. The rainwater that runs along the first wiring portion 3b flows downward along the surface of the first wiring portion 3b and reaches the folded portion 3c. The rainwater that reaches the folded portion 3c drips downward at the folded portion 3c and does not flow toward the second wiring portion 3d and the terminal portion 3e. Furthermore, because the second wiring portion 3d and the terminal portion 3e are arranged forward of the base main body 60, rainwater is less likely to run directly from the wall surface 9b. Additionally, the second wiring portion 3d and the terminal portion 3e are covered from the front by the case 40 (see FIG. 4). Therefore, the second wiring portion 3d and the terminal portion 3e are less likely to be directly exposed to rainwater falling from the sky. By adopting the wiring path of the electrical wiring 30e of this embodiment, the terminal portion 3e of the electrical wiring 30e can be protected from rainwater.

[0080] <Joint material> 6, the joint member 75 is assembled to surround the upper end 64a of the pipe portion 64b. When the joint member 75 is assembled to the pipe portion 64b, the central axis J of the pipe portion 64b and the central axis J of the joint member 75 coincide with each other. In the following description, the radial direction relative to the central axis J of the pipe portion 64b or the joint member 75 will be simply referred to as the "radial direction," and the circumferential direction around these central axes J will be simply referred to as the "circumferential direction."

[0081] The joint member 75 has an upper cylindrical portion 75a, a tapered cylindrical portion 75b, and a lower cylindrical portion 75c. The upper cylindrical portion 75a and the lower cylindrical portion 75c are cylindrical. The lower cylindrical portion 75c has a larger diameter than the upper cylindrical portion 75a. The tapered cylindrical portion 75b connects the upper cylindrical portion 75a and the lower cylindrical portion 75c. The tapered cylindrical portion 75b has a tapered shape in which the diameter gradually increases downward.

[0082] The joint member 75 is provided with a through hole 76 extending in the radial direction. The through hole 76 penetrates the joint member 75 in the radial direction. The through hole 76 has an elongated first portion 76a extending in the circumferential direction and an elongated second portion 76b extending downward from one circumferential end of the first portion 76a. The through hole 76 is formed into an L shape by the first portion 76a and the second portion 76b. The first portion 76a is provided in the upper cylindrical portion 75a. The second portion 76b is provided in the upper cylindrical portion 75a and the tapered cylindrical portion 75b beyond the boundary between them.

[0083] An engaging protrusion 64p that protrudes radially outward is provided on the outer peripheral surface of the upper end 64a of the pipe portion 64b. In this embodiment, the engaging protrusion 64p is provided in a region facing forward of the pipe portion 64b. The engaging protrusion 64p has a generally rectangular shape with chamfered corners in a plan view. The dimension of the engaging protrusion 64p in the vertical direction Z is generally equal to the width direction of the first portion 76a in the vertical direction Z. The dimension of the engaging protrusion 64p in the left-right direction Y is slightly smaller than the circumferential width direction of the second portion 76b.

[0084] When connecting the ventilation pipe 31 to the ventilation device main body 50, the worker first passes the tip of the ventilation pipe 31 through the joint member 75. Next, the worker connects the ventilation pipe 31 to the pipe portion 64b. Furthermore, the worker covers the connection portion between the ventilation pipe 31 and the pipe portion 64b with the joint member 75. At this time, the worker first moves the joint member 75 downward to insert the fitting protrusion 64p into the second portion 76b of the through hole 76. Because the lower end of the second portion 76b is located in the portion where the inner diameter of the tapered tube portion 75b is wider, the worker can smoothly insert the fitting protrusion 64p into the second portion 76b from below. Furthermore, the worker rotates the joint member 75 circumferentially to insert the fitting protrusion 64p into the first portion 76a of the through hole 76. As a result, the fitting protrusion 64p fits into the inner edge of the first portion 76a, and the joint member 75 is fixed to the pipe portion 64b.

[0085] Fig. 9 is a cross-sectional view of the joint member 75 and the pipe portion 64b taken along line IX-IX in Fig. 6. Fig. 10 is a cross-sectional view of the joint member 75 and the pipe portion 64b taken along line XX in Fig. 6. Note that Figs. 9 and 10 illustrate a state in which the fitting protrusion 64p is disposed at the boundary between the first portion 76a and the second portion 76b of the through-hole 76. The joint member 75 is fixed to the pipe portion 64b by further rotating in the circumferential direction from the state shown in Figs. 9 and 10.

[0086] 10, in addition to the second ridges 67, a pair of guide ridges 64e are provided on the outer peripheral surface of the upper end 64a of the pipe portion 64b. The second ridges 67 and the pair of guide ridges 64e are arranged side by side in the circumferential direction of the pipe portion 64b. The second ridges 67 and the pair of guide ridges 64e face the inner surface of the joint member 75.

[0087] As shown in Fig. 9, the guide portion 67g of the second ridge portion 67 is disposed inside the joint member 75. The guide portion 67g has an outer end 67h facing radially outward and an upper end 67k facing upward. While the shape of the guide portion 67g will be mainly described here, the pair of guide ridges 64e also have the same shape as the guide portion 67g. That is, the pair of guide ridges 64e have the same outer ends 67h and upper ends 67k as the guide portion 67g.

[0088] The outer end 67h of the guide portion 67g extends parallel to the vertical direction Z. The outer end 67h of the guide portion 67g faces radially the inner surface of the lower cylindrical portion 75c of the joint member 75. The outer end 67h of the guide portion 67g extends along the inner surface of the lower cylindrical portion 75c. The guide portion 67g faces radially the inner surface of the joint member 75 and guides it. This stabilizes the radial position of the joint member 75 relative to the pipe portion 64b.

[0089] The upper end 67k of the guide portion 67g is inclined upward as it extends radially inward. The upper end 67k of the guide portion 67g faces the inner surface of the tapered cylindrical portion 75b of the joint member 75 in the vertical direction Z. The upper end 67k of the guide portion 67g extends along the inner surface of the tapered cylindrical portion 75b. The guide portion 67g faces and guides the inner surface of the joint member 75 in the vertical direction Z. This stabilizes the position of the joint member 75 in the vertical direction Z relative to the pipe portion 64b.

[0090] As described above, the pair of guide ridges 64e also have the outer end 67h and upper end 67k similar to the guide portion 67g. Therefore, the guide portion 67g and the guide ridges 64e stabilize the position of the joint member 75 in the radial direction and the vertical direction Z, thereby suppressing rattling. As a result, the second ridge 67 and the pair of guide ridges 64e guide the joint member 75, stabilize the position of the joint member 75 relative to the pipe portion 64b, and prevent the fitting protrusion 64p from coming off the through-hole 76.

[0091] <Summary> The air conditioner 100 of this embodiment includes an indoor unit 20, an outdoor unit 10, a circulation path section (refrigerant piping) 18, a ventilation device 30, and electrical wiring 30e. The indoor unit 20 is installed inside the room 8 and has a heat exchanger (first heat exchanger) 22. The outdoor unit 10 is installed outside the room 7 and has a heat exchanger (second heat exchanger) 13. The circulation path section 18 passes through a through-hole 9h in a wall 9 separating the room 8 from the outside 7, and connects the heat exchanger 22 of the indoor unit 20 to the heat exchanger 13 of the outdoor unit 10. The ventilation device 30 ventilates the air in the room 8. The electrical wiring 30e extends from the indoor unit 20 or the outdoor unit 10 and is connected to the ventilation device 30. The ventilation device 30 includes ventilation piping 31, a base body 60, a ventilation fan 51, and a case 40. The ventilation piping 31 is drawn from the indoor unit 20 through the through-hole 9h to the outdoor area 7. The base body 60 is connected to the ventilation piping 31 at the outdoor area 7. The ventilation fan 51 is supported by the base body 60. The case 40 covers the ventilation fan 51. The base body 60 has a back surface 60e facing the wall 9 and a front surface 60d facing the opposite side of the wall 9. The base body 60 supports the ventilation fan 51 on the front surface 60d. The electrical wiring 30e has a first wiring portion 3b, a folded-back portion 3c, a second wiring portion 3d, and a terminal portion 3e. The first wiring portion 3b extends in the vertical direction Z between the back surface 60e and the wall 9. The folded-back portion 3c is folded back upward at the lower end of the first wiring portion 3b. The second wiring portion 3d extends upward from the folded-back portion 3c. The terminal portion 3e is located at the upper end of the second wiring portion 3d and is connected to the ventilation fan 51.

[0092] According to the above-described configuration, as shown in FIG. 3 , by disposing the ventilation fan 51 inside the ventilation device main body 50 located outside the room 7, noise caused by the operation of the ventilation fan 51 is less likely to be transmitted to the room 8, thereby maintaining quietness in the room 8. However, disposing the ventilation fan 51 outside the room 7 also necessitates protecting the ventilation fan 51 from rainwater. According to the present embodiment, the ventilation fan 51 is covered by the case 40. The case 40 prevents rainwater from directly contacting the ventilation fan 51. Furthermore, as shown in FIG. 6 , the terminal portion 3e provided at the tip of the electrical wiring 30e must have an exposed conductor and must be protected from rainwater. According to the above-described configuration, the terminal portion 3e is connected to the ventilation fan 51 above the folded portion 3c. Therefore, rainwater running along the electrical wiring 30e drips off the folded portion 3c and is less likely to reach the terminal portion 3e, thereby protecting the terminal portion 3e from rainwater.

[0093] In the air conditioner 100 of this embodiment, as shown in Fig. 7, the back surface 60e is provided with a pair of protrusions 66, 67 extending parallel to each other in the vertical direction Z. The first wiring portion 3b is disposed between the pair of protrusions 66, 67. With this configuration, by pushing the tip of the electrical wiring 30e from above the base main body 60 with the ventilation device main body 50 installed on the wall surface 9b, the electrical wiring 30e can be easily guided to the bottom of the base main body 60, guided by the pair of protrusions 66, 67. In other words, with this configuration, the workability of handling the electrical wiring 30e can be improved.

[0094] In the air conditioner 100 of this embodiment, as shown in FIG. 7 , the base main body 60 has a pipe portion 64b. The pipe portion 64b has an air passage 60F extending in the vertical direction Z therein and is connected to the ventilation piping 31 at its upper end 64a. At least one of the pair of protrusions 66, 67 (the second protrusion portion 67) is provided on the outer surface of the pipe portion 64b. With this configuration, by placing the electrical wiring 30e in the gap 6 between the pair of protrusions 66, 67, the electrical wiring 30e can be easily aligned with the ventilation piping 31 connected to the pipe portion 64b. This makes it possible to configure a ventilation device 30 that has a neat appearance in which the electrical wiring 30e and the ventilation piping 31 are integrally arranged.

[0095] 9, the ventilation device 30 includes a cylindrical joint member 75 that covers the connection between the ventilation piping 31 and the pipe section 64b. A second protrusion 67 provided on the outer surface of the pipe section 64b faces the inner surface of the joint member 75. With this configuration, the second protrusion 67 guides the joint member 75, making it possible to stabilize the position of the joint member 75 relative to the pipe section 64b and to prevent the joint member 75 from rattling.

[0096] In the air conditioner 100 of this embodiment, as shown in Fig. 5, the base main body 60 has a side surface portion 60f. The side surface portion 60f is provided between the front surface portion 60d and the rear surface portion 60e. A partitioning ridge portion 65 extending along the wall 9 is provided on at least a portion of the side surface portion 60f. The partitioning ridge portion 65 divides the outer surface of the base main body 60 into a rear region B located on the wall 9 side and a front region F located on the opposite side.

[0097] When there is a heavy rainfall, it is expected that rainwater will run down from the wall surface 9b onto the rear surface 60e. Furthermore, some of the rainwater running down the rear surface 60e will flow onto the side surface 60f. According to the above-described configuration, the partitioning ridges 65 provided on the side surface 60f block the rainwater and prevent it from reaching the front region F. This makes it possible to protect the ventilation fan 51 supported by the front surface 60d and the terminal portion 3e from the rainwater.

[0098] Although the embodiments of the present disclosure have been described above, the present disclosure is not limited to the configurations of the above-described embodiments. For example, in the above-described embodiments, the width of the gap 6 between the first protrusion 66 and the second protrusion 67 is uniform over the entire length of the gap 6, but the width of the gap 6 does not necessarily have to be uniform. Furthermore, the first protrusion 66 or the second protrusion 67 may be partially interrupted. [Explanation of symbols]

[0099] 3b...first wiring section, 3c...folded section, 3d...second wiring section, 3e...terminal section, 6a, 67k...upper end, 6b...lower end, 7...outdoor section, 8...indoor section, 9...wall, 9a, 9b...wall surface, 9h...through hole, 10...outdoor unit, 13...heat exchanger (second heat exchanger), 18...circulation path section (refrigerant piping), 19...refrigerant, 20...indoor unit, 22...heat exchanger (first heat exchanger), 30...ventilation device, 30e, 130e...electrical wiring, 3 1...ventilation piping, 40...case, 51...ventilation fan, 60...base body, 60d...front portion, 60e...rear portion, 60f...side portion, 60F...air duct, 64a...upper end portion, 64b...pipe portion, 65...partition ridge portion, 66...first ridge portion (ridge portion), 67...second ridge portion (ridge portion), 70...mounting plate, 75...joint member, 80...base, 100...air conditioner, B...rear region, F...front region, Z...vertical direction

Claims

1. an indoor unit installed indoors and having a first heat exchanger; an outdoor unit installed outdoors and having a second heat exchanger; a refrigerant pipe that passes through a through-hole in a wall that separates the indoor space from the outdoor space and connects the first heat exchanger and the second heat exchanger; a ventilation device for ventilating the air in the room; and an electric wiring extending from the indoor unit or the outdoor unit and connected to the ventilation device, The ventilation device includes: a ventilation pipe extending from the room through the through hole to the outside of the room; a base body connected to the ventilation pipe outside the room; a ventilation fan supported by the base body; a case that covers the ventilation fan, the base body has a rear surface facing the wall and a front surface facing the opposite side of the wall, and the front surface supports the ventilation fan; The electrical wiring is a first wiring portion extending vertically between the rear surface portion and the wall; a folded portion folded upward at a lower end of the first wiring portion; a second wiring portion extending upward from the folded portion; a terminal portion located at an upper end of the second wiring portion and connected to the ventilation fan, The rear surface portion is provided with a pair of protrusions extending parallel to each other in the vertical direction, the first wiring portion is disposed between the pair of protrusions, the base body has an air passage extending in the vertical direction therein and a pipe portion connected at an upper end to the ventilation pipe, At least one of the pair of protrusions is provided on an outer surface of the pipe portion. Air conditioner.

2. The ventilation device includes a cylindrical joint member that covers a connection portion between the ventilation piping and the pipe portion, The protrusion provided on the outer surface of the pipe portion faces the inner surface of the joint member. The air conditioner according to claim 1.

3. the base body has a side portion provided between the front portion and the rear portion, A partition protrusion extending along the wall is provided on at least a portion of the side surface, The dividing protrusion divides the outer surface of the base body into a rear region located on the wall side and a front region located on the opposite side.

3. The air conditioner according to claim 1 or 2.

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