JP2022151349A - Ventilation device and air conditioning system - Google Patents

Abstract

To provide a ventilation device which enables easy installation of an indoor casing of the ventilation device, and to provide an air conditioning system.SOLUTION: An air conditioning system includes: an indoor unit (130) of an air conditioner (110) including a first casing (131) formed with an air outlet (137); a ventilation device (210) including a second casing (225) formed with an outside air outlet (22a) for blowing outside air; a blower part (240) which sends outside air; and a duct (211) connected to the blower part (240). The first casing (131) includes a first insertion part (13a) and a second insertion part (13b) for inserting the duct (211). The second casing (225) includes a connection part (25g) with which the duct (211) is connected. The duct (211) is connected to the connection part (25g) through the first insertion part (13a), an internal space of the first casing (131), and the second insertion part (13b).SELECTED DRAWING: Figure 1

Description

The present disclosure relates to ventilators and air conditioning systems.

An air conditioner with a ventilation function is known. An air conditioner with a ventilation function disclosed in Patent Document 1 includes an air conditioner and a ventilation device. A ventilation device includes an indoor casing, a fan, and a duct. The duct is inserted through the hole in the wall and connected to the indoor casing and the outdoor fan. As the fan rotates, outside air is conveyed to the indoor casing through the duct and then blown into the room through an opening provided in the indoor casing.

JP-A-04-073531

However, when the hole in the wall is located at a distance from the indoor casing of the ventilator, when bringing the duct from the hole in the wall to the indoor casing of the ventilator, the hole in the wall and the indoor casing of the ventilator must be If an indoor unit of an air conditioner exists between them, a duct must be installed so as to bypass the indoor unit. This may complicate the work of installing the indoor casing of the ventilation device.

An object of the present disclosure is to provide a ventilator and an air conditioning system in which an indoor casing of the ventilator can be easily installed.

A first aspect is directed to an air conditioning system. The air conditioning system includes an indoor unit (130) of an air conditioner (110) including a first casing (131) having an air outlet (137) and a second air outlet (22a) for blowing outside air. A ventilator (210) including a casing (225), a blower section (240) for sending outside air, and a duct (211) connected to the blower section (240), wherein the first casing (131) The second casing (225) includes a first insertion portion (13a) and a second insertion portion (13b) through which the duct (211) is inserted. ), and the duct (211) passes through the first insertion portion (13a), the space inside the first casing (131), and the second insertion portion (13b) to the connecting portion (25g ).

In the first aspect, since the duct (211) is inserted through the indoor unit (130), when the second casing (225) of the ventilation device (210) is installed, the duct (211) is inserted into the second casing (225). Since it is not necessary to arrange the duct (211) so as to bypass the indoor unit (130) of the air conditioner (110) when connecting the second casing (225) of the ventilation device (210), can be installed in

In a second aspect, in the first aspect, refrigerant pipes (112, 113) are inserted into the first insertion portion (13a).

In the second aspect, since not only the duct (211) but also the refrigerant pipe are inserted into the first insertion portion (13a), the air conditioning system can be constructed rationally.

In a third aspect, in the first or second aspect, the outside air outlet (22a) is arranged on one side of the second casing (225) in the longitudinal direction, and the second casing (225) The connecting portion (25g) of the duct (211) is arranged on the other side in the longitudinal direction.

In the third aspect, below the indoor unit (130) of the air conditioner (110), the outdoor air outlet (22a) of the ventilation device (210) is located at the center of the indoor unit (130) of the air conditioner (110). The casing of the ventilator (210) can be easily installed so that it is positioned closer.

In a fourth aspect, in any one of the first to third aspects, the first insertion portion (13a), the second insertion portion (13b), and the ventilator ( 210), at least one of said connecting portions (25g) includes a knock hole, an opening, or an opening/closing door.

In the fourth aspect, the duct ( 211) can be inserted.

A fifth aspect is directed to a ventilator. The ventilator is used together with the air conditioner (110). The ventilation device includes a casing (225) formed with an outside air outlet (22a) for blowing outside air, and a duct (211) for sending outside air. It includes a connecting portion (25g) to which the duct (211) inserted through the machine (130) is connected.

In the fifth aspect, since the duct (211) is inserted through the indoor unit (130), when connecting the duct (211) to the casing (225) when installing the casing (225) of the ventilator (210), Moreover, since it is not necessary to arrange the duct (211) so as to bypass the indoor unit (130) of the air conditioner (110), the casing (225) of the ventilator (210) can be easily installed.

FIG. 1 is a schematic cross-sectional view of an air conditioning system according to an embodiment. FIG. 2 is a front view of an air conditioning indoor unit and a ventilation indoor unit. FIG. 3 is a front view of an air conditioning outdoor unit and a ventilation outdoor unit. FIG. 4 is a block diagram containing the basic elements of an air conditioner. FIG. 5 is a block diagram showing the configuration of the air conditioning system. FIG. 6 is a schematic diagram showing the configuration around the power supply of the air conditioning indoor unit. FIG. 7 is a plan view of the ventilation indoor unit. FIG. 8 is a front view of the ventilation indoor unit. FIG. 9 is a bottom view of the ventilation indoor unit. FIG. 10 is a right side view of the ventilation indoor unit. FIG. 11 is a front view of the ventilation indoor unit with a part of the casing omitted. FIG. 12 is a plan view of the ventilation indoor unit with a part of the casing omitted. 13 is a cross-sectional view taken along line MM of FIG. 8. FIG. 14(a) and 14(b) are diagrams showing the positional relationship between the air conditioning indoor unit and the ventilation indoor unit. 15(a) and 15(b) are diagrams showing the positional relationship between the air conditioning indoor unit and the ventilation indoor unit. 16(a) to 16(c) are diagrams showing the positional relationship between the air conditioning indoor unit and the ventilation indoor unit. 17(a) to 17(c) are diagrams showing the positional relationship between the air conditioning indoor unit and the ventilation indoor unit.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. The following embodiments are essentially preferable examples, and are not intended to limit the scope of the present invention, its applications, or its uses.

<<Embodiment>>
An air conditioning system (1) according to an embodiment will be described.

As shown in FIGS. 1 to 3, the air conditioning system (1) includes an air conditioner (110) and a ventilator (210).

(1) Overall Configuration of Air Conditioner The air conditioner (110) adjusts the temperature of the air in the target space. The target space is the space inside the room (I). The interior (I) is separated from the exterior (J) by a wall (A). The wall (A) is formed with a through hole (XA) that communicates between the interior (I) and the exterior (J).

The air conditioner (110) performs cooling operation and heating operation. In cooling operation, the air conditioner (110) cools the air in the room (I). In heating operation, the air conditioner (110) heats the air in the room (I).

FIG. 4 shows a schematic piping diagram of the air conditioner (110). As shown in FIG. 4, the air conditioner (110) includes a refrigerant circuit (111). The refrigerant circuit (111) is filled with refrigerant. The refrigerant circuit (111) performs a refrigeration cycle by circulating refrigerant.

The air conditioner (110) includes an air conditioner outdoor unit (120), an air conditioner indoor unit (130), a first communication pipe (112), and a second communication pipe (113). The air conditioner (110) is of a pair type having one air conditioner outdoor unit (120) and one air conditioner indoor unit (130).

(1-1) Air Conditioning Outdoor Unit The air conditioning outdoor unit (120) is installed outdoors (J) (see FIGS. 1 and 3). As shown in FIG. 4, the air conditioning outdoor unit (120) includes a compressor (121), an outdoor heat exchanger (122), an expansion valve (123), a four-way switching valve (124), and an outdoor fan (125). . The air conditioner outdoor unit (120) further includes a power terminal block (126) and a power circuit (923) (see FIG. 5).

As shown in FIG. 4, the compressor (121) compresses refrigerant. The compressor (121) is a rotary compressor. The rotary compressor (121) is configured by an oscillating type, a rolling piston type, a scroll type, or the like.

The outdoor heat exchanger (122) exchanges heat between refrigerant and outdoor air. The outdoor heat exchanger (122) is of the fin-and-tube type. The outdoor fan (125) conveys outdoor air. Air carried by the outdoor fan (125) passes through the outdoor heat exchanger (122). The outdoor fan (125) is a propeller fan. The expansion valve (123) reduces the pressure of the refrigerant. The expansion valve (123) is an electronic or temperature sensitive expansion valve.

The four-way switching valve (124) reverses the flow of refrigerant in the refrigerant circuit (111). The four-way switching valve (124) communicates between the discharge side of the compressor (121) and the gas side of the outdoor heat exchanger (122), and at the same time, communicates the suction side of the compressor (121) with the air conditioner indoor unit (130). It communicates with the gas side of the indoor heat exchanger (140). As a result, a refrigeration cycle (cooling cycle) is performed in which the outdoor heat exchanger (122) functions as a radiator and the indoor heat exchanger (140) functions as an evaporator. In addition, the four-way switching valve (124) communicates the discharge side of the compressor (121) with the gas side of the indoor heat exchanger (140) of the air conditioning indoor unit (130), and at the same time, the suction of the compressor (121). side and the gas side of the outdoor heat exchanger (122). As a result, a refrigeration cycle (heating cycle) is performed in which the indoor heat exchanger (140) functions as a radiator and the outdoor heat exchanger (122) functions as an evaporator.

(1-2) Air Conditioner Indoor Unit As shown in FIGS. 1 and 2, the air conditioner indoor unit (130) is installed in the room (I). The air conditioning indoor unit (130) is fixed to the inner wall (A1). The air conditioning indoor unit (130) is a wall-mounted air conditioning indoor unit. The air conditioning indoor unit (130) includes a casing (131), an indoor heat exchanger (140), a crossflow fan (150), a flap (190), and a fan motor (194) that rotates the crossflow fan (150). . The air conditioner indoor unit (130) further includes a power terminal block (132) and a communication terminal (133) (see FIG. 5).

As shown in FIGS. 1 and 2, the casing (131) forms an outer shell of the air conditioning indoor unit (130). The casing (131) is shaped like a horizontally long box. The casing (131) is installed so that the rear surface of the casing (131) faces the inner wall (A1). An internal space (S1) is formed inside the casing (131) to accommodate the indoor heat exchanger (140) and the cross flow fan (150). A suction port (136) is formed in the upper portion of the casing (131). An outlet (137) is formed in the lower portion of the casing (131). The outlet (137) is provided with a flap (190). The flap (190) constitutes a wind direction adjusting plate that changes the direction of the air blown out from the outlet (137).

The indoor heat exchanger (140) exchanges heat between refrigerant and indoor air. The indoor heat exchanger (140) is of the fin-and-tube type. The cross-flow fan (150) is an indoor fan that conveys indoor air. Air carried by the cross-flow fan (150) passes through the indoor heat exchanger (140).

The first communication pipe (112) and the second communication pipe (113) connect the air conditioning indoor unit (130) and the air conditioning outdoor unit (120) to each other while being inserted through the through hole (XA). The first communication pipe (112) is a gas pipe, and the second communication pipe (113) is a liquid pipe. The first communication pipe (112) is connected to the gas end of the indoor heat exchanger (140). The second communication pipe (113) is connected to the liquid end of the indoor heat exchanger (140).

A piping space (S2) is formed in the lower rear portion of the casing (131). The piping space (S2) accommodates the refrigerant piping of the refrigerant circuit (111), a condensed water discharge path (for example, a hose), and the like.

(1-3) Control Device As shown in FIG. 4, the air conditioner (110) has a control device (10). The control device (10) includes a remote controller (101), a first controller (102) and a second controller (103). Each of the first controller (102) and the second controller (103) includes a processor such as a CPU and MPU, and a memory storing programs executed by the processor. The first controller (102) is provided in the air conditioning indoor unit (130), and the second controller (103) is provided in the air conditioning outdoor unit (120).

A remote control (101) is provided in the room (I). A remote controller (101) is an operation unit operated by a user. The remote controller (101) transmits a command according to a user's operation to the first controller (102) wirelessly or by wire.

The first controller (102) controls various types of air conditioning indoor units (130), such as a cross-flow fan (150), a first flap (91), a second flap (92), etc., according to commands received from the remote controller (101). Control components.

The first controller (102) transmits a command according to the operation of the remote controller (101) to the second controller (103). The second controller (103) operates the compressor (121), the expansion valve (123), the four-way switching valve (124), the outdoor fan (125), etc. outside the air-conditioned room according to the command received from the first controller (102). It controls various components of the machine (120).

(2) Overall configuration of ventilation device As shown in FIGS. Provide ventilation. The ventilator (210) is used together with the air conditioner (110). Being used together indicates that the ventilator (210) is used together with the air conditioner (110). Attachment includes not only the simultaneous installation of the air conditioner (110) and the ventilator (210), but also the installation of the ventilator (210) after the air conditioner (110). Use indicates that the ventilator (210) performs a process of supplying outside air to the room (I), which is the target space of the air conditioner (110).

The ventilation device (210) includes a duct (211), an indoor ventilation unit (220), and an outdoor ventilation unit (230). The duct (211) communicates with the ventilation indoor unit (220) and the ventilation outdoor unit (230) while being inserted through the through hole (XA). As shown in FIG. 2, in the room (I), the duct (211) is connected to the ventilation indoor unit (220) while being inserted through the casing (131) of the air conditioning indoor unit (130). A portion of the duct (211) located between the casing (131) of the air conditioning indoor unit (130) and the casing (225) of the ventilation indoor unit (220) is covered with a cover member (D). As shown in FIG. 3, outside the room (J), the first communication pipe (112), the second communication pipe (113) and the duct (211) are covered with a cover member (C).

The ventilation outdoor unit (230) is an example of the first ventilation unit of the present invention. The ventilation indoor unit (220) is an example of the second ventilation unit of the present invention.

(2-1) Ventilation Indoor Unit As shown in FIGS. 1, 2 and 5, the ventilation indoor unit (220) is installed in the room (I). The ventilation indoor unit (220) includes a reception unit (221), a display unit (222), a room temperature detection unit (223), a communication terminal (224), a casing (225), and a third controller (226). , and a power supply circuit (922).

The casing (225) accommodates a reception section (221), a display section (222), a room temperature detection section (223), a communication terminal (224), and a third controller (226). An outside air outlet (22a) is formed in the casing (225). In this embodiment, the outside air outlet (22a) blows out the outside air horizontally. The casing (225) is separate from the casing (131) of the air conditioning indoor unit (130). A gap is provided between the casing (225) and the casing (131) of the air conditioning indoor unit (130). The casing (225) is installed, for example, below the casing (131) of the air conditioning indoor unit (130). The reception unit (221) receives an operation signal for the ventilator (210) transmitted from the ventilator remote controller. The operation signal for the ventilator (210) is, for example, a signal instructing to start or stop the ventilator (210), or the intensity of the outside air blown out from the outside air outlet (22a) of the ventilator (210). including a signal for instructing switching. The reception unit (221) includes, for example, an infrared remote control reception module. The ventilator remote controller may be shared with the remote controller (101) of the air conditioner (110). The display section (222) includes, for example, an LED (Light Emitting Diode), and displays information indicating the operating state of the ventilator (210). The information indicating the operating state of the ventilator (210) includes, for example, information indicating whether the power is ON or OFF, information indicating the intensity of the outside air blown out from the outside air outlet (22a), is in an interlocked state with the air conditioner (110). The room temperature detector (223) is a temperature sensor that detects the temperature of the room (I). The third controller (226) includes a processor, such as a CPU and MPU, and memory storing programs executed by the processor. A third controller (226) controls the operation of various components of the ventilation indoor unit (220).

(2-2) Ventilation Outdoor Unit As shown in FIGS. 1, 3 and 5, the ventilation outdoor unit (230) is installed outdoors (J). The ventilation outdoor unit (230) is installed on the outer wall of the wall (A). The ventilation outdoor unit (230) includes an outside temperature detector (231), a first motor (232), a damper detector (233), a second motor (234), a heater (235), and a first communication. A terminal (236), a second communication terminal (237), a fourth controller (238), a fan (240), a damper (241), a casing (242), a power supply terminal block (243), and a power supply A circuit (921).

The casing (242) includes an outside air temperature detector (231), a first motor (232), a damper detector (233), a second motor (234), a heater (235), and a first communication terminal ( 236), a second communication terminal (237), a fourth controller (238), a fan (240), and a power terminal block (243). An intake port (24a) is formed in the casing (242). The intake port (24a) is opened and closed by a damper (241).

The outside air temperature detector (231) is a temperature sensor that detects the temperature of outside air (outdoor (J) air). The first motor (232) rotates the fan (240). Rotation of the fan (240) causes outside air to flow into the casing (242) through the intake port (24a). The outside air that has flowed into the casing (242) is sent to the inside of the casing (225) of the ventilation indoor unit (220) through the duct (211), and is discharged from the outside air outlet (22a) of the casing (225) into the room (I ).

The second motor (234) opens and closes the intake port (24a) by changing the rotation angle of the damper (241). The damper detector (233) includes, for example, a limit switch, and detects whether the damper (241) opens or closes the intake port (24a).

A heater (235) heats the outside air. For example, when the difference between the room temperature (indoor (I) temperature) detected by the room temperature detector (223) and the outside air temperature detected by the outside temperature detector (231) exceeds a predetermined value, the heater Outside air is heated by (235) and the heated air is supplied to the room (I). As a result, it is possible to prevent the outside air from being supplied into the room (I) in a low temperature state, and further to prevent condensation from occurring due to the temperature difference between the outside air and the room temperature.

The fourth controller (238) includes a processor, such as a CPU and MPU, and memory storing programs executed by the processor. A fourth controller (238) controls the operation of various components of the ventilation outdoor unit (230).

(3) Wiring Configuration of Air Conditioning System With reference to FIG. 5, the wiring configuration of the air conditioning system (1) will be described.

As shown in FIG. 5, the air conditioning system (1) includes a first communication wire (400), a second communication wire (500), a first signal wire (600), and a second signal wire (700). Prepare.

The first communication wire (400) is connected to the power terminal block (132) of the air conditioning indoor unit (130) and the power terminal block (243) of the outdoor ventilation unit (230). The second communication wire (500) is connected to the power terminal block (243) of the outdoor ventilation unit (230) and the power terminal block (126) of the outdoor air conditioning unit (120). The first signal line (600) is connected to the communication terminal (133) of the air conditioning indoor unit (130) and the first communication terminal (236) of the outdoor ventilation unit (230). The second signal line (700) is connected to the second communication terminal (237) of the outdoor ventilation unit (230) and the communication terminal (224) of the indoor ventilation unit (220).

FIG. 6 shows a substrate (900) provided in the air conditioning indoor unit (130). As shown in FIG. 6, the board (900) includes a first controller (102), a power terminal block (132), a communication terminal (133), a power terminal (910), and a power circuit (920). is provided. A power terminal (910) is a terminal for connecting to an AC power supply (E) via an electric wire. The power supply circuit (920) is connected to the power supply terminal (910) by wires (W1, W2). The power supply circuit (920) converts the AC voltage from the AC power supply (E) input through the wiring (W1, W2) to the desired voltage, thereby converting the input power from the AC power supply (E) into the required voltage. produces output power that Various components of the air conditioning indoor unit (130) such as the fan motor (194) are driven by the power output from the power supply circuit (920).

The power terminal block (132) is connected to a wiring (W3) branched from the wiring (W1) and a wiring (W4) branched from the wiring (W2). The first controller (102) controls the power supply circuit (920) to adjust the output power so that the input power from the AC power supply (E) is transferred to the power supply terminal block via the wiring (W3, W4). Controls the power sent to (132). The power terminal block (132) is connected to the first controller (102) via wiring W (W5). The communication terminal (133) is connected to the first controller (102) via a wire W (W6). A communication circuit (930) is provided in the wiring (W5, W6). The wires (W5, W6) function as communication lines for the first controller (102) to transmit and receive control signals.

As shown in FIGS. 5 and 6, part of the input power from the AC power supply (E), which is a commercial power supply, is input to the power supply circuit (920), and the power supply circuit (920) supplies the air conditioner indoor unit (130) with power. The air conditioning indoor unit (130) operates by supplying power to the air conditioner. The power terminal block (132) of the air conditioner indoor unit (130) outputs another portion of the power supplied to the power supply of the air conditioner indoor unit (130).

The power output from the power terminal block (132) is sent to the power terminal block (243) of the ventilation outdoor unit (230) through the first communication wire (400). A part of the electric power sent to the power supply terminal block (243) through the first communication wire (400) is sent to the power supply circuit (921) of the outdoor ventilation unit (230) to is supplied to the ventilation indoor unit (220) by being sent to the power supply circuit (922) of the ventilation indoor unit (220) through the second signal line (700). As a result, the ventilation outdoor unit (230) and the ventilation indoor unit (220) operate. In addition, another part of the electric power sent to the power supply terminal block (243) of the outdoor ventilation unit (230) through the first communication wire (400) is supplied to the air conditioning outdoor unit (120) through the second communication wire (500). ), and is sent from the power terminal block (126) to the power supply circuit (923) of the air conditioner outdoor unit (120), thereby supplying power to the air conditioner outdoor unit (120). . As a result, the air conditioning outdoor unit (120) operates.

As shown in FIG. 5, the first controller (102) (see FIG. 4) of the air conditioner indoor unit (130) outputs a first control signal for communicating with the air conditioner outdoor unit (120). The first control signal is the first communication wire (400), the power terminal block (243) of the ventilation outdoor unit (230), the second communication wire (500), and the power terminal block (126) of the air conditioning outdoor unit (120). to the air conditioning outdoor unit (120). As a result, the second controller (103) (see FIG. 4) of the air conditioning outdoor unit (120) performs processing (for example, switching processing of the four-way switching valve (124)) based on the first control signal.

As shown in FIG. 5, the first controller (102) (see FIG. 4) of the air conditioning indoor unit (130) outputs a second control signal for communicating with the ventilator (210) from the communication terminal (133). . The second control signal is sent to the air conditioning outdoor unit (120) via the first signal line (600). As a result, the fourth controller (238) of the outdoor ventilation unit (230) receives the second control signal through the first communication terminal (236) and performs processing based on the second control signal. The second control signal includes, for example, a signal indicating that the air conditioner indoor unit (130) is powered on or off. The processing based on the second control signal includes, for example, processing to operate the ventilator (210) in conjunction with the operation of the air conditioner indoor unit (130).

The fourth controller (238) of the outdoor ventilation unit (230) communicates with the third controller (226) of the indoor ventilation unit (220) through the second signal line (700). For example, when an operation signal for the ventilator (210) is input from the remote controller of the ventilator (210) to the reception unit (221), the third controller (226) of the outdoor ventilation unit (230) sends the signal to the communication terminal (224). to the ventilation outdoor unit (230) via the second signal line (700). When the fourth controller (238) of the ventilation outdoor unit (230) receives the operation signal from the second communication terminal (237), the fourth controller (238) performs processing based on the operation signal (for example, the fan (240) is operated by the first motor (232). to rotate the outside air to the ventilation indoor unit (220)). Further, the third controller (226) of the ventilation indoor unit (220) and the first controller (102) of the air conditioning indoor unit (130) are connected to each other via the first signal line (600) and the second signal line (700). connect.

(4) Detailed Configuration of Indoor Ventilation Unit The indoor ventilation unit (220) will be further described with reference to FIGS. 7 to 13. FIG. Below, with the ventilation indoor unit (220) installed on the inner wall (A1) of the room (I), the inner wall (A1) side is forward with respect to the casing (225) of the ventilation indoor unit (220). The outside air outlet (22a) side is the rear, and the front, rear, up, down, left and right directions are defined.

As shown in FIGS. 7-13, the ventilation indoor unit (220) further includes a passageway (227), a heat insulating material (228) installed around the passageway (227), and a filter (229).

The passageway (227) is a tubular member installed inside the casing (225) of the ventilation indoor unit (220). One end (27a) of the passageway (227) is open while being positioned in the left-right center of the interior of the casing (225). The other end (27b) of the passageway (227) communicates with the outside air outlet (22a). A filter (229) is installed at the other end (27b) of the passageway (227). Filter (229) includes, for example, a non-woven fabric.

The casing (225) of the ventilation indoor unit (220) has a hollow, substantially cuboid shape. The casing (225) is installed so as to extend in the left-right direction. The casing (225) has a first outer surface (25a), a second outer surface (25b), a third outer surface (25c), a fourth outer surface (25d), a fifth outer surface (25e), and a sixth outer surface (25e). Including outer surface (25f). The first outer surface (25a) and the second outer surface (25b) face each other, and between the first outer surface (25a) and the second outer surface (25b) are the third outer surface (25c) and the fifth outer surface (25c). The outer surface (25e), the fourth outer surface (25d) and the sixth outer surface (25f) are arranged annularly. In this embodiment, the first outer surface (25a) faces upward, the second outer surface (25b) faces downward, the third outer surface (25c) faces rearward, the fourth outer surface (25d) faces forward, and the third outer surface (25d) faces forward. The casing (225) is installed with the fifth outer surface (25e) facing right and the sixth outer surface (25f) facing left. In FIG. 11, the illustration of the cover member that constitutes the third outer surface (25c) is omitted except for the peripheral portion of the outside air outlet (22a).

Connecting portions (25g) are formed on the first outer surface (25a), the second outer surface (25b), and the fifth outer surface (25e). On the first outer surface (25a) and the second outer surface (25b), the connecting portion (25g) is arranged on the right side of each surface. A connecting portion (25g) indicates a portion of the casing (225) where the duct (211) is connected. The location where the duct (211) is connected specifically indicates the location where the duct (211) is inserted inside the casing (225). Connections (25g) include dowel holes, openings or opening doors. The connection part (25g) may be configured to have a closed state and an open state like a knock hole and an open/close door, and switch to the open state so that the duct (211) can be inserted. A configuration in which the opening is always open may also be used. When the connection portion (25g) is configured by a knock hole, the edge portion (H) (see FIGS. 7, 9 and 10) of the connection portion (25g) is formed thinner than the surroundings. When the connecting part (25g) is pressed, the thin edge (H) at the connecting part (25g) is cut from the casing (225) and the connecting part (25g) is removed from the casing (225). As a result, a hole penetrating the inside and outside of the casing (225) is formed in the casing (225) where the connecting portion (25g) was located.

In this embodiment, the connecting portion (25g) is formed on the first outer surface (25a), the second outer surface (25b), and the fifth outer surface (25e). However, the invention is not so limited. The number of connecting parts (25g) is not particularly limited. Only one connection portion (25g) may be provided, or a plurality of connection portions may be provided.

The duct (211) is inserted into the casing (225) from one of the plurality of connection portions (25g) provided on the outer surface of the casing (225). ) to one end (27a) of the passageway (227).

The duct (211) is made of a bellows-like or sponge-like bending deformation (plastic or elastic deformation) material (for example, resin). When the duct (211) is inserted into the casing (225) from the connecting portion (25g) of the first outer surface (25a) or the connecting portion (25g) of the second outer surface (25b), Inside, it is connected to one end (27a) of the passageway (227) while bending leftward. When the duct (211) is inserted into the casing (225) from the connecting portion (25g) of the fifth outer surface (25e), the duct (211) extends straight without bending inside the casing (225). , is connected to one end (27a) of the passageway (227) (not shown).

An outside air outlet (22a) is formed in the third outer surface (25c). The outside air outlet (22a) is arranged on the left side of the third outer surface (25c). The third outer surface (25c) includes a first water trapping groove (25h) and a second water trapping groove (25i).

(5) Positional Relationship Between Air Conditioning Indoor Unit and Duct As shown in FIGS. 2 insertion part (13b) is included.

The duct (211) is sent to the room (I) through the through hole (XA) and inserted into the casing (131) of the air conditioning indoor unit (130) through the first insertion portion (13a). The duct (211) inside the casing (131) projects out of the casing (131) from the second insertion portion (13b). A portion of the duct (211) protruding from the second insertion portion (13b) to the outside of the casing (131) is connected (inserted) to the connection portion (25g) of the ventilation indoor unit (220).

The duct (211) is inserted into the casing (131) of the air conditioning indoor unit (130) through the first insertion portion (13a) and the second insertion portion (13b), and is inserted into the casing (225) of the ventilation indoor unit (220). ) is connected (inserted) to the connection (25g).

Refrigerant pipes (the first communication pipe (112) and the second communication pipe (113)) are further inserted into the first insertion portion (13a). The refrigerant pipe is sent to the room (I) through the through hole (XA), inserted into the casing (131) of the air conditioner indoor unit (130) from the first insertion portion (13a), and connected to the indoor heat exchanger (140 ) (see FIG. 1).

Each of the first insertion portion (13a) and the second insertion portion (13b) includes a knock hole, an opening, or an opening/closing door. Each of the first insertion portion (13a) and the second insertion portion (13b) has a closed state and an open state like a knock hole and an open/close door, and by switching to the open state, the duct (211) is opened. ) can be inserted, or a structure that is always open like an opening may be used. When each of the first insertion portion (13a) and the second insertion portion (13b) is configured by a knock hole, the edges of each of the first insertion portion (13a) and the second insertion portion (13b) are thinner than their surroundings. formed in When each of the first insertion portion (13a) and the second insertion portion (13b) is pressed, the thin edge portions of each of the first insertion portion (13a) and the second insertion portion (13b) are separated from the casing (131). By cutting, each of the first insertion portion (13a) and the second insertion portion (13b) is removed from the casing (131). As a result, holes penetrating the inside and outside of the casing (131) are formed at the places where the first insertion portion (13a) and the second insertion portion (13b) were located in the casing (131). be.

(6) Installation Example of Duct The arrangement structure of the first insertion portion (13a) and the second insertion portion (13b) will be described with reference to FIGS. 14(a) to 17(c).

Below, as shown in FIGS. 7 to 10, the first outer surface (25a) faces upward, the second outer surface (25b) faces downward, and the third outer surface (25c) faces rearward. The posture of the casing (225) of the ventilation indoor unit (220) at that time may be referred to as the first posture.

Below, the posture when the posture of the casing (225) is upside down from the first posture (the first outer surface (25a) faces downward, the second outer surface (25b) faces upward, and the third outer surface (25c) faces downward. A posture facing backward) may be described as a second posture.

(6-1) A first example of the arrangement structure of the first insertion portion (13a) and the second insertion portion (13b) will be described.

As shown in FIG. 14(a), the casing (225) of the ventilation indoor unit (220) is installed below and to the right of the casing (131) of the air conditioning indoor unit (130). The casing (225) of the ventilation indoor unit (220) is placed in the first posture. A through hole (XA) is arranged in the inner wall (A1) at a location facing the lower right portion of the rear surface of the casing (131) of the air conditioning indoor unit (130). The first insertion portion (13a) is arranged to face the through hole (XA). The second insertion portion (13b) is arranged on the right side of the lower portion of the casing (131). The duct (211) inserted through the through-hole (XA) is inserted into the casing (131) from the first insertion portion (13a), and protrudes downward from the casing (131) from the second insertion portion (13b). , is connected (inserted) to the connecting portion (25g) (see FIGS. 7 and 8) of the first outer surface (25a) of the ventilation indoor unit (220).

(6-2) A second example of the arrangement structure of the first insertion portion (13a) and the second insertion portion (13b) will be described.

As shown in FIG. 14(b), in the second example, the through hole (XA) is arranged on the right side of the casing (131) of the air conditioning indoor unit (130), and the first insertion portion (13a) extends through the casing (131). differs from the first example (see FIG. 14(a)) in that it is arranged at a lower portion of the right portion of the .

(6-3) A third example of the arrangement structure of the first insertion portion (13a) and the second insertion portion (13b) will be described.

As shown in FIG. 15(a), the casing (225) of the ventilation indoor unit (220) is installed below and to the left of the casing (131) of the air conditioning indoor unit (130). The casing (225) of the ventilation indoor unit (220) is placed in the second posture. A through hole (XA) is arranged at a location facing the lower left portion of the rear surface of the casing (131) of the air conditioner indoor unit (130). The first insertion portion (13a) is arranged to face the through hole (XA). The second insertion portion (13b) is arranged at a leftward portion of the lower portion of the casing (131). The duct (211) inserted through the through-hole (XA) is inserted into the casing (131) from the first insertion portion (13a), and protrudes downward from the casing (131) from the second insertion portion (13b). , is connected to the connecting portion (25g) (see FIGS. 8 and 9) of the second outer surface (25b) of the ventilation indoor unit (220).

(6-4) A fourth example of the arrangement structure of the first insertion portion (13a) and the second insertion portion (13b) will be described.

As shown in FIG. 15(b), in the fourth example, the through hole (XA) is arranged on the left side of the casing (131) of the air conditioning indoor unit (130), and the first insertion portion (13a) extends through the casing (131). It differs from the third example (see FIG. 15(a)) in that it is arranged at a lower portion of the left portion of the .

(6-5) A fifth example of the arrangement structure of the first insertion portion (13a) and the second insertion portion (13b) will be described. In the fifth example, points different from the third example will be described.

As shown in FIG. 16(a), in the fifth example, the through hole (XA) is arranged at a location facing the lower right portion of the rear surface of the casing (131) of the air conditioning indoor unit (130). differs from the third example (see FIG. 15(a)) in that the first insertion portion (13a) is disposed at a location facing the .

(6-6) A sixth example of the arrangement structure of the first insertion portion (13a) and the second insertion portion (13b) will be described.

As shown in FIG. 16(b), in the sixth example, the through hole (XA) is arranged on the right side of the casing (131) of the air conditioning indoor unit (130), and the first insertion portion (13a) extends through the casing (131). It is different from the third example (see FIG. 15(a)) in that it is arranged in the lower part of the right part of the .

(6-7) A seventh example of the arrangement structure of the first insertion portion (13a) and the second insertion portion (13b) will be described.

As shown in FIG. 16(c), in the seventh example, the through hole (XA) is arranged below and to the right of the casing (131) of the air conditioning indoor unit (130), and the first insertion portion (13a) is It is different from the third example (see FIG. 15(a)) in that it is arranged at a portion on the right side of the lower portion of the casing (131).

(6-8) An eighth example of the arrangement structure of the first insertion portion (13a) and the second insertion portion (13b) will be described.

As shown in FIG. 17(a), the casing (225) of the ventilation indoor unit (220) is installed on the right side of the air conditioning indoor unit (130). The casing (225) of the ventilation indoor unit (220) is placed in the second posture. A through hole (XA) is arranged at a location facing the lower right portion of the rear surface of the casing (131) of the air conditioner indoor unit (130). The first insertion portion (13a) is arranged to face the through hole (XA). The second insertion portion (13b) is arranged at a lower portion of the right portion of the casing (131). The duct (211) inserted through the through hole (XA) is inserted into the casing (131) through the first insertion portion (13a), and protrudes to the right of the casing (131) through the second insertion portion (13b). is connected to the connection portion (25g) (see FIGS. 8 and 10) on the fifth outer surface (25e) of the ventilation indoor unit (220).

(6-9) A ninth example of the arrangement structure of the first insertion portion (13a) and the second insertion portion (13b) will be described.

As shown in FIG. 17(b), the casing (225) of the ventilation indoor unit (220) is installed on the left side of the air conditioning indoor unit (130). The casing (225) of the ventilation indoor unit (220) is placed in the first posture. A through hole (XA) is arranged at a location facing the lower left portion of the rear surface of the casing (131) of the air conditioner indoor unit (130). The first insertion portion (13a) is arranged to face the through hole (XA). The second insertion portion (13b) is arranged at a lower portion of the left portion of the casing (131). The duct (211) inserted through the through-hole (XA) is inserted into the casing (131) from the first insertion portion (13a), and protrudes leftward from the casing (131) from the second insertion portion (13b). is connected to the connection portion (25g) (see FIGS. 8 and 10) on the fifth outer surface (25e) of the ventilation indoor unit (220).

(6-10) A tenth example of the arrangement structure of the first insertion portion (13a) and the second insertion portion (13b) will be described.

As shown in FIG. 17(c), in the tenth example, the through hole (XA) is arranged at a location facing the lower right portion of the rear surface of the casing (131) of the air conditioning indoor unit (130), and the first insertion portion ( It differs from the ninth example (see FIG. 17(b)) in that 13a) is arranged opposite to the through hole (XA).

(7) Effects of Embodiment As shown in FIG. 1, the duct (211) is connected to the fan (240). Connected to the fan (240) indicates that the duct (211) is installed such that the outside airflow generated by the fan (240) flows into the duct (211). As shown in FIGS. 14(a) to 17(c), the duct (211) includes a first insertion portion (13a), a space (inside) inside the casing (131) of the air conditioning indoor unit (130), and It is connected to the connection portion (25g) through the second insertion portion (13b). As a result, when installing the casing (225) of the ventilation indoor unit (220), it is not necessary to install the duct (211) so as to bypass the casing (131) of the air conditioning indoor unit (130). The casing (225) of the indoor unit (220) can be easily installed.

Further, part of the duct (211) can be housed inside the casing (131) of the air conditioning indoor unit (130) so as not to be exposed to the outside, so the duct (211) can be installed in an orderly fashion.

The casing (225) of the ventilation indoor unit (220) is provided with an outside air outlet (22a) on one side in the left-right direction (longitudinal direction), and a plurality of connection portions (25g) (first outer surface (25a ), a connection (25g) on the second outer surface (25b), and a connection (25g) on the fifth outer surface (25e)). As a result, as shown in FIGS. 14(a) and 14(b), the casing (225) of the ventilation indoor unit (220) is installed to the right of the left-right center of the casing (131) of the air conditioning indoor unit (130). In this case, install the casing (225) so that the outside air outlet (22a) faces left, and place the outside air outlet (22a) close to the outlet (137) of the air conditioning indoor unit (130). can be done. As a result, the air blown out from the air outlet (137) can be effectively mixed with the outside air blown out from the outside air outlet (22a).

As shown in FIGS. 15(a) to 16(c), when the casing (225) of the ventilation indoor unit (220) is installed to the left of the left-right center of the casing (131) of the air conditioning indoor unit (130). The casing (225) can be installed so that the outside air outlet (22a) faces rightward, and the outside air outlet (22a) can be brought close to the outlet (137) of the air conditioning indoor unit (130). As a result, the air blown out from the air outlet (137) can be effectively mixed with the outside air blown out from the outside air outlet (22a).

Although the embodiments have been described above, it will be appreciated that various changes in form and detail may be made without departing from the spirit and scope of the claims. In addition, the above embodiments, modifications, and other embodiments may be appropriately combined or replaced as long as the functions of the object of the present disclosure are not impaired.

The descriptions of "first", "second", "third", etc. described above are used to distinguish the words and phrases to which these descriptions are given, and the number and order of the words and phrases are also limited. not something to do.

The present disclosure is useful for ventilators and air conditioning systems.

13a first insertion portion
13b second insertion portion
22a outside air outlet
25g connection
110 air conditioner
112, 113 Refrigerant piping
130 indoor unit
131 first casing
137 outlet
210 ventilator
211 Duct
225 second casing
240 blower (fan)

Claims (5)

an indoor unit (130) of an air conditioner (110) including a first casing (131) having an air outlet (137);
a ventilator (210) including a second casing (225) formed with an outside air outlet (22a) for blowing outside air;
A blower section (240) for sending outside air;
a duct (211) connected to the blower section (240),
The first casing (131) includes a first insertion portion (13a) and a second insertion portion (13b) for inserting the duct (211),
The second casing (225) includes a connecting portion (25g) to which the duct (211) is connected,
The duct (211) is connected to the connection portion (25g) through the first insertion portion (13a), the space inside the first casing (131), and the second insertion portion (13b). air conditioning system. In claim 1,
An air conditioning system in which refrigerant pipes (112, 113) are inserted into the first insertion portion (13a). In claim 1 or claim 2,
The external air outlet (22a) is arranged on one side in the longitudinal direction of the second casing (225),
An air conditioning system in which the connecting portion (25g) of the duct (211) is arranged on the other longitudinal side of the second casing (225). In any one of claims 1 to 3,
At least one of the first insertion portion (13a), the second insertion portion (13b) of the air conditioner (110), and the connection portion (25g) of the ventilator (210) includes a knock hole or an opening. air-conditioning system, including parts, or opening and closing doors. A ventilator used in combination with an air conditioner (110),
a casing (225) formed with an outside air outlet (22a) for blowing outside air;
a duct (211) for sending outside air and
The casing (225) includes a connection portion (25g) to which the duct (211) inserted through the indoor unit (130) of the air conditioner (110) is connected.

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