Ventilation and air conditioning systems

Abstract

To provide a ventilating device to which electric power can be supplied by a simple structure, and an air condition system.SOLUTION: A ventilating device comprises a power terminal block (243) comprising a first input terminal (306) to which electric power from one of an indoor unit (130) and an outdoor unit (120) of an air conditioner (110) is inputted, and an air blowing part (232) for generating an outdoor air flow. The air blowing part (232) is driven by the electric power supplied via the power terminal block (243). The power terminal block (243) comprises an output terminal (356) for outputting the electric power to the other of the indoor unit (130) and the outdoor unit (120).SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to ventilation devices and air conditioning systems. [Background technology]

[0002] Air conditioners with a ventilation function are known. The air conditioner with a ventilation function disclosed in Patent Document 1 includes an air conditioner and a ventilation device. The ventilation device includes an indoor casing, a fan, and a duct. The duct is inserted into a hole in a wall and communicates with the indoor casing and the outdoor fan. As the fan rotates, outside air is transported to the indoor casing through the duct, and then blown out into the room from an opening provided in the indoor casing. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 04-073531 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in order to secure the power to drive the fan and the like of the ventilation device, it is necessary to prepare a power line for the ventilation device and an outlet into which the plug of the power line is inserted, which is cumbersome, and there is a possibility that the exposed power line will make the device look unsightly. Furthermore, if the configuration of the power supply surroundings of the indoor unit of the air conditioner is changed to obtain power for the ventilation device from the power supply of the indoor unit, it is necessary to change the design of the power supply surroundings of the indoor unit, which is cumbersome.

[0005] An object of the present disclosure is to provide a ventilation device and an air conditioning system that can supply power to the ventilation device with a simple configuration. [Means for solving the problem]

[0006] The first aspect is directed to a ventilation device. The ventilation device sends outside air into a room. The ventilation device includes a power supply terminal block (243) having a first input terminal (306) to which power is input from one of the indoor unit (130) and the outdoor unit (120) of an air conditioner (110), and a blower unit (232) that generates an outside air flow, the blower unit (232) is driven by the power supplied via the power supply terminal block (243), and the power supply terminal block (243) has an output terminal (356) that outputs the power to the other of the indoor unit (130) and the outdoor unit (120).

[0007] In the first embodiment, the ventilation device (210) can be easily installed since no additional power source for the ventilation device is required.

[0008] In the second aspect, in the first aspect, the first input terminal (306) of the power supply terminal block (243) receives input of a first signal for communication between the indoor unit (130) and the outdoor unit (120), and the output terminal (356) of the power supply terminal block (243) outputs the first signal.

[0009] In the second embodiment, the power supply terminal block (243) of the ventilation system can be used to transmit not only power to the outdoor unit (120) but also control signals from the indoor unit (130).

[0010] In a third aspect, in the first or second aspect, the indoor unit (130) includes a second input terminal (236) to which a second signal for communicating with the ventilation device is input.

[0011] In the third aspect, communication can be established between the indoor unit (130) of the air conditioner (110) and the ventilation device.

[0012] A fourth aspect is any one of the first to third aspects, further comprising a first wiring (810, 820) that transmits the power from the first input terminal (306) to the output terminal (356), and a second wiring (830, 840) that transmits the power from the first input terminal (306) to the blower section (232).

[0013] In the fourth aspect, power input to the first input terminal (306) can be sent to the output terminal (356) and the blower (232) of the ventilation device.

[0014] A fifth aspect is any one of the first to fourth aspects, further comprising a first ventilation unit (230) including the power supply terminal block (243) and the blower (232), and a second ventilation unit (220) including an outside air outlet (22a) for blowing out outside air, and the first ventilation unit (230) includes a communication terminal (237) for communicating with the second ventilation unit (220).

[0015] In a fifth embodiment, communication may be provided between the first ventilation unit (230) and the second ventilation unit (220).

[0016] A sixth aspect is directed to an air conditioning system, the air conditioning system including the above-described ventilation device and the air conditioner (110).

[0017] In the sixth embodiment, the ventilation device (210) can be easily installed since no additional power source for the ventilation device is required.

[0018] In a seventh aspect, based on the sixth aspect, the air conditioner (110) changes an upper limit of power consumption of the air conditioner (110) in accordance with power consumption of the ventilation device.

[0019] In the seventh aspect, it is possible to prevent the breaker of the commercial power supply from tripping when the air conditioner (110) is in use. [Brief description of the drawings]

[0020] [Figure 1] FIG. 1 is a schematic cross-sectional view of an air conditioning system according to an embodiment. [Diagram 2] FIG. 2 is a front view of the air conditioning indoor unit and the ventilation indoor unit. [Diagram 3] FIG. 3 is a front view of the air conditioning outdoor unit and the ventilation outdoor unit. [Figure 4] FIG. 4 is a block diagram including basic elements of an air conditioner. [Diagram 5] FIG. 5 is a block diagram showing the configuration of an air conditioning system. [Figure 6] FIG. 6 is a schematic diagram showing the configuration around the power supply of an air conditioning indoor unit. [Figure 7] FIG. 7 is a diagram showing the power supply terminal block of the ventilation outdoor unit. [Figure 8] FIG. 8 is a front view of the first terminal block. [Figure 9] FIG. 9 is a side view of the first terminal block. [Figure 10] FIG. 10 is a flow chart showing the operation of the third controller of the air conditioner. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that the following embodiments are essentially preferred examples and are not intended to limit the scope of the present invention, its applications, or its uses.

[0022] <<Embodiment>> An air conditioning system (1) according to an embodiment will be described.

[0023] As shown in FIGS. 1 to 3, an air conditioning system (1) includes an air conditioner (110) and a ventilator (210).

[0024] (1) Overall configuration of air conditioner The air conditioner (110) adjusts the temperature of air in a target space. The target space is an indoor space (I). The indoor space (I) is separated from the outdoor space (J) by a wall portion (A). A through hole (XA) is formed in the wall portion (A) to communicate between the indoor space (I) and the outdoor space (J).

[0025] 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).

[0026] Fig. 4 shows a schematic piping diagram of an 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 the refrigerant.

[0027] The air conditioner (110) includes an air conditioning outdoor unit (120), an air conditioning indoor unit (130), a first connecting pipe (112), and a second connecting pipe (113). The air conditioner (110) is a pair type having one air conditioning outdoor unit (120) and one air conditioning indoor unit (130).

[0028] (1-1)Air conditioner outdoor unit As shown in Figures 1 and 3, the air conditioning outdoor unit (120) is installed outdoors (J). As shown in Figure 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 conditioning outdoor unit (120) further includes a power supply terminal block (126) and a power supply circuit (923) (see Figure 5).

[0029] As shown in Fig. 4, the compressor (121) compresses a refrigerant. The compressor (121) is a rotary compressor. The rotary compressor (121) may be of a swing type, a rolling piston type, a scroll type, or the like.

[0030] The outdoor heat exchanger (122) exchanges heat between the refrigerant and outdoor air. The outdoor heat exchanger (122) is of a fin-and-tube type. The outdoor fan (125) transports outdoor air. The air transported 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.

[0031] The four-way switching valve (124) reverses the flow of refrigerant in the refrigerant circuit (111). The four-way switching valve (124) connects the discharge side of the compressor (121) to the gas side of the outdoor heat exchanger (122) and also connects the suction side of the compressor (121) to the gas side of the indoor heat exchanger (140) of the air conditioning indoor unit (130). 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. The four-way switching valve (124) connects the discharge side of the compressor (121) to the gas side of the indoor heat exchanger (140) of the air conditioning indoor unit (130) and also connects the suction side of the compressor (121) to 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.

[0032] (1-2) Air conditioning indoor unit As shown in Fig. 1 and Fig. 2, the air conditioning indoor unit (130) is installed in a room (I). The air conditioning indoor unit (130) is fixed to an 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 cross-flow fan (150), a flap (190), and a fan motor (194) that rotates the cross-flow fan (150). The air conditioning indoor unit (130) further includes a power supply terminal block (132) and a communication terminal (133) (see Fig. 5).

[0033] As shown in FIGS. 1 and 2, the casing (131) forms the outer shell of the air conditioning indoor unit (130). The casing (131) is formed in a horizontally long box shape. The casing (131) is installed with the back surface of the casing (131) facing the inner wall (A1). An internal space (S1) is formed inside the casing (131) to accommodate the indoor heat exchanger (140) and the crossflow fan (150). An intake port (136) is formed in an upper portion of the casing (131). An air outlet (137) is formed in a lower portion of the casing (131). A flap (190) is provided in the air outlet (137). The flap (190) constitutes an air direction adjusting plate that changes the direction of air blown out from the air outlet (137).

[0034] The indoor heat exchanger (140) exchanges heat between the refrigerant and the indoor air. The indoor heat exchanger (140) is of a fin-and-tube type. The cross-flow fan (150) is an indoor fan that transports the indoor air. The air transported by the cross-flow fan (150) passes through the indoor heat exchanger (140).

[0035] The first interconnection pipe (112) and the second interconnection pipe (113) are inserted through the through hole (XA) to connect the air conditioning indoor unit (130) and the air conditioning outdoor unit (120) to each other. The first interconnection pipe (112) is a gas pipe, and the second interconnection pipe (113) is a liquid pipe. The first interconnection pipe (112) is connected to a gas end of the indoor heat exchanger (140). The second interconnection pipe (113) is connected to a liquid end of the indoor heat exchanger (140).

[0036] A piping space (S2) is formed in a lower rear portion of the casing (131). The piping space (S2) accommodates refrigerant piping of the refrigerant circuit (111), a drainage path for condensed water (for example, a hose), and the like.

[0037] (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 control (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 an MPU, and a memory that stores a program 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).

[0038] The remote control (101) is provided in the room (I). The remote control (101) is an operation unit operated by a user. The remote control (101) transmits commands in response to user operations to the first controller (102) wirelessly or via wires.

[0039] The first controller (102) controls various components of the air conditioner indoor unit (130), such as the crossflow fan (150), the first flap (91), and the second flap (92), in response to commands received from the remote control (101).

[0040] The first controller (102) transmits commands corresponding to the operation of the remote control (101) to the second controller (103). The second controller (103) controls various components of the air conditioner outdoor unit (120), such as the compressor (121), the expansion valve (123), the four-way switching valve (124), and the outdoor fan (125), in response to the commands received from the first controller (102).

[0041] (2) Overall configuration of the ventilation system As shown in FIGS. 1 to 3 , the ventilation device (210) ventilates the room (I) by supplying outside air (outdoor air (J)) to the room (I). The ventilation device (210) is used in combination with the air conditioner (110). "Used in combination" refers to the ventilation device (210) being used in combination with the air conditioner (110). "Used in combination" refers not only to the air conditioner (110) and the ventilation device (210) being installed at the same time, but also to the ventilation device (210) being installed later with respect to the air conditioner (110). "Used" refers to the ventilation device (210) performing a process of supplying outside air to the room (I), which is the target space of the air conditioner (110).

[0042] The ventilation device (210) includes a duct (211), a ventilation indoor unit (220), and a ventilation outdoor unit (230). The duct (211) is inserted through the through hole (XA) and communicates with the ventilation indoor unit (220) and the ventilation outdoor unit (230). As shown in Fig. 3, outside the room (J), the first connection pipe (112), the second connection pipe (113), and the duct (211) are covered with a cover member (C).

[0043] The ventilation outdoor unit (230) is an example of a first ventilation unit of the present invention. The ventilation indoor unit (220) is an example of a second ventilation unit of the present invention.

[0044] (2-1) Ventilation indoor unit 1, 2, and 5, the ventilation indoor unit (220) is installed in a 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), a third controller (226), and a power supply circuit (922).

[0045] The casing (225) houses the reception section (221), the display section (222), the room temperature detection section (223), the communication terminal (224), and the third controller (226). An outdoor air outlet (22a) is formed in the casing (225). The outdoor air outlet (22a) is in communication with the duct (211) through a passage (227) provided inside the casing (225). In this embodiment, the outdoor air outlet (22a) blows outdoor air horizontally. The outdoor air outlet (22a) 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 ventilation device (210) transmitted from a ventilation device remote control. The operation signal for the ventilation device (210) includes, for example, a signal instructing to start or stop the ventilation device (210) and a signal instructing to change the strength of the volume of outside air blown out from the outside air outlet (22a) of the ventilation device (210). The reception unit (221) includes, for example, an infrared remote control receiving module. The ventilation device remote control may be shared with the remote control (101) of the air conditioner (110). The display unit (222) includes, for example, a light emitting diode (LED) and displays information indicating the operating state of the ventilation device (210). The information indicating the operating state of the ventilation device (210) includes, for example, information indicating the ON / OFF state of the power supply, information indicating the strength of the volume of outside air blown out from the outside air outlet (22a), and information indicating whether the ventilation device (210) is in an interlocking state with the air conditioner (110). The room temperature detection unit (223) is a temperature sensor that detects the air temperature in the room (I). The third controller (226) includes a processor such as a CPU and an MPU, and a memory that stores a program executed by the processor. The third controller (226) controls the operations of various components of the ventilation indoor unit (220).

[0046] (2-2) Outdoor ventilation unit As shown in Figures 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 section (A). The ventilation outdoor unit (230) includes an outside air temperature detection section (231), a first motor (232), a damper detection section (233), a second motor (234), a heater (235), a first communication 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 circuit (921).

[0047] The casing (242) accommodates the outside air temperature detection unit (231), the first motor (232), the damper detection unit (233), the second motor (234), the heater (235), the first communication terminal (236), the second communication terminal (237), the fourth controller (238), the fan (240), and the power supply terminal block (243). An air intake (24a) is formed in the casing (242). The air intake (24a) is opened and closed by the damper (241).

[0048] The outdoor air temperature detection section (231) is a temperature sensor that detects the temperature of outdoor air (outdoor air (J)). The first motor (232) rotates the fan (240). As the fan (240) rotates, outdoor air flows into the inside of the casing (242) through the air intake (24a). The outdoor air that has flowed into the inside of the casing (242) is sent through the duct (211) to the inside of the casing (225) of the ventilation indoor unit (220), and is blown out from the outdoor air outlet (22a) of the casing (225) into the room (I). The first motor (232) is an example of a blower of the present invention.

[0049] The second motor (234) opens and closes the air intake (24a) by changing the rotation angle of the damper (241). The damper detection unit (233) includes, for example, a limit switch, and detects whether the air intake (24a) is opened or closed by the damper (241).

[0050] The heater (235) heats the outside air. For example, when the difference between the room temperature (air temperature of the room (I)) detected by the room temperature detector (223) and the outside air temperature detected by the outside air temperature detector (231) is equal to or greater than a predetermined value, the outside air is heated by the heater (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 to the room (I) at a low temperature, and further to prevent condensation from occurring due to the temperature difference between the outside air and the room temperature.

[0051] The fourth controller 238 includes a processor, such as a CPU or an MPU, and a memory that stores a program executed by the processor. The fourth controller 238 controls the operation of various components of the outdoor ventilation unit 230.

[0052] The fourth controller (238), the first communication terminal (236), and the second communication terminal (237) are provided on a board (244) (see FIG. 6) and are electrically connected to one another on the board (244). Being electrically connected means that signals or power can be transmitted and received between the connected members. The first motor (232), the damper detection unit (233), the second motor (234), the heater (235), and the power supply terminal block (243) are electrically connected to the board (244).

[0053] (3) Air conditioning system wiring configuration The wiring configuration of the air conditioning system (1) will be described with reference to FIG.

[0054] As shown in FIG. 5, the air conditioning system (1) includes a first interconnecting wire (400), a second interconnecting wire (500), a first signal wire (600), and a second signal wire (700).

[0055] The first interconnecting 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 ventilation outdoor unit (230). The second interconnecting wire (500) is connected to the power terminal block (243) of the ventilation outdoor unit (230) and the power terminal block (126) of the air conditioning outdoor 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 ventilation outdoor unit (230). The second signal line (700) is connected to the second communication terminal (237) of the ventilation outdoor unit (230) and the communication terminal (224) of the ventilation indoor unit (220).

[0056] FIG. 6 shows a board (900) provided in the air conditioning indoor unit (130). As shown in FIG. 6, the board (900) is provided with a first controller (102), a power supply terminal block (132), a communication terminal (133), a power supply terminal (910), and a power supply circuit (920). The power supply 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) via wirings (W1, W2). The power supply circuit (920) converts an AC voltage input from the AC power supply (E) via the wirings (W1, W2) into a desired voltage, thereby generating required output power from the input power from the AC power supply (E). Various components of the air conditioning indoor unit (130), such as a fan motor (194), are driven by the output power from the power supply circuit (920).

[0057] The power supply terminal block (132) is connected to a wire (W3) branched from the wire (W1) and a wire (W4) branched from the wire (W2). The first controller (102) controls the power supply circuit (920) to adjust the output power, thereby controlling the power sent to the power supply terminal block (132) via the wires (W3, W4) from the input power from the AC power supply (E). The power supply terminal block (132) is connected to the first controller (102) via a wire 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 wires (W5, W6). The wires (W5, W6) function as communication lines for the first controller (102) to transmit and receive control signals.

[0058] 5 and 6, a portion of the input power from the AC power supply (E), which is a commercial power supply, is input to a power supply circuit (920), and the power supply circuit (920) supplies power to the air conditioning indoor unit (130), thereby operating the air conditioning indoor unit (130). A power supply terminal block (132) of the air conditioning indoor unit (130) outputs another portion of the power supplied to the power supply of the air conditioning indoor unit (130).

[0059] The power output from the power terminal block (132) is sent to the power terminal block (243) of the ventilation outdoor unit (230) via the first connecting wire (400). A part of the power sent to the power terminal block (243) via the first connecting wire (400) is sent to the power circuit (921) of the ventilation outdoor unit (230) to supply power to the ventilation outdoor unit (230), and is further sent via the second signal wire (700) to the power circuit (922) of the ventilation indoor unit (220) to supply power to the ventilation indoor unit (220). As a result, the ventilation outdoor unit (230) and the ventilation indoor unit (220) are operated. Further, another portion of the electric power sent to the power supply terminal block (243) of the ventilation outdoor unit (230) by the first connecting electric wire (400) is sent to the power supply terminal block (126) of the air conditioning outdoor unit (120) by the second connecting electric wire (500) and then sent from the power supply terminal block (126) to the power supply circuit (923) of the air conditioning outdoor unit (120), thereby supplying power to the air conditioning outdoor unit (120). As a result, the air conditioning outdoor unit (120) operates.

[0060] As shown in Fig. 5, the first controller (102) (see Fig. 4) of the air conditioning indoor unit (130) outputs a first control signal for communicating with the air conditioning outdoor unit (120). The first control signal is sent to the air conditioning outdoor unit (120) via the first interconnecting wire (400), the power supply terminal block (243) of the ventilation outdoor unit (230), the second interconnecting wire (500), and the power supply terminal block (126) of 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 based on the first control signal (e.g., switching of the four-way switching valve (124)).

[0061] 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 ventilation device (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 ventilation outdoor 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 power supply of the air conditioning indoor unit (130) has been turned on or off. The processing based on the second control signal includes, for example, processing for operating the ventilation device (210) in conjunction with the operation of the air conditioning indoor unit (130).

[0062] The fourth controller (238) of the ventilation outdoor unit (230) communicates with the third controller (226) of the ventilation indoor unit (220) through the second signal line (700). For example, when an operation signal for the ventilation device (210) is input from the remote control of the ventilation device (210) to the reception unit (221), the third controller (226) of the ventilation outdoor unit (230) transmits the operation signal from the communication terminal (224) through the second signal line (700) to the ventilation outdoor unit (230). When the fourth controller (238) of the ventilation outdoor unit (230) receives the operation signal from the second communication terminal (237), it performs processing based on the operation signal (for example, processing for rotating the fan (240) by the first motor (232) to send outside air to the ventilation indoor unit (220)). Furthermore, the third controller (226) of the ventilation indoor unit (220) and the first controller (102) of the air conditioning indoor unit (130) communicate with each other via a first signal line (600) and a second signal line (700).

[0063] (4) Configuration of the first connecting wire, the second connecting wire, and the power terminal block of the ventilation outdoor unit 5 and 7, the first interconnection wire (400) includes a first power line (410) and a second power line (420) for transmitting electric power, and a first communication line (430) for transmitting a first control signal. The second interconnection wire (500) includes a third power line (510) and a fourth power line (520) for transmitting electric power, and a second communication line (530) for transmitting a first control signal.

[0064] As shown in FIG. 5, the power terminal block (243) of the ventilation outdoor unit (230) includes a first terminal block (300) and a second terminal block (350).

[0065] As shown in Figures 7 to 9, the first terminal block (300) includes a first housing (305), a first input terminal (306), and a first output terminal (307). The first input terminal (306) includes a first input section (311), a second input section (312), and a third input section (313). The first output terminal (307) includes a first output section (321), a second output section (322), and a third output section (323).

[0066] The first housing (305) is provided with a first input section (311) to a third input section (313) and a first output section (321) to a third output section (323). In the first housing (305), the first input section (311) is electrically connected to the first output section (321), the second input section (312) is electrically connected to the second output section (322), and the third input section (313) is electrically connected to the third output section (323). The first output section (321) to the third output section (323) are each provided in two stages in the depth direction of the first housing (305) (see FIG. 9).

[0067] The second terminal block (350) has a similar configuration to the first terminal block (300) except that the input / output configuration is reversed. The second terminal block (350) includes a second housing (355), a second output terminal (356), and a second input terminal (357). The second output terminal (356) includes a fourth output section (361), a fifth output section (362), and a sixth output section (363). The second input terminal (357) includes a fourth input section (371) electrically connected to the fourth output section (361), a fifth input section (372) electrically connected to the fifth output section (362), and a sixth input section (373) electrically connected to the sixth output section (363).

[0068] The power supply terminal block (243) further includes a first power wiring (810), a second power wiring (820), a third power wiring (830), a fourth power wiring (840), and a control signal wiring (850). The first power wiring (810) is electrically connected to a first output section (321) of the first terminal block (300) and a fourth input section (371) of the second terminal block (350). The second power wiring (820) is electrically connected to a second output section (322) of the first terminal block (300) and a fifth input section (372) of the second terminal block (350). The third power wiring (830) is electrically connected to the first output section (321) of the first terminal block (300) and the board (244) of the ventilation outdoor unit (230). The fourth power wiring (840) is electrically connected to the second output portion (322) of the first terminal block (300) and the board (244) of the ventilation outdoor unit (230). The control signal wiring (850) is electrically connected to the third output portion (323) of the first terminal block (300) and the sixth input portion (373) of the second terminal block (350).

[0069] The first interconnection wire (400) is electrically connected to the first input terminal (306) of the first terminal block (300). The first power line (410) of the first interconnection wire (400) is electrically connected to the first input section (311) of the first input terminal (306), the second power line (420) is electrically connected to the second input section (312), and the first communication line (430) is electrically connected to the third input section (313).

[0070] The second interconnection wire (500) is electrically connected to the second output terminal (356) of the second terminal block (350). The third power line (510) of the second interconnection wire (500) is electrically connected to the fourth output portion (361) of the second output terminal (356), the fourth power line (520) is electrically connected to the fifth output portion (362), and the second communication line (530) is electrically connected to the sixth output portion (363).

[0071] (5) Operation of the power terminal block of the ventilation outdoor unit 5 and 7, the power output from the power supply terminal block (132) of the air conditioning indoor unit (130) is sent to the first terminal block (300) of the ventilation outdoor unit (230) via the first power line (410) and the second power line (420). A part of the power sent to the first terminal block (300) is sent to various components of the ventilation device (210) via the third power wiring (830) and the fourth power wiring (840) and consumed by the various components of the ventilation device (210). Another part of the power sent to the first terminal block (300) is sent to the air conditioning outdoor unit (120) via the first power wiring (810), the second power wiring (820), the second terminal block (350), the third power line (510), and the fourth power line (520) and consumed by the air conditioning outdoor unit (120).

[0072] 5 and 7, the first control signal output from the power supply terminal block (132) of the air conditioning indoor unit (130) and addressed to the air conditioning outdoor unit (120) is sent to the air conditioning outdoor unit (120) via the first communication line (430), the first terminal block (300), the control signal wiring (850), and the second communication line (530). As a result, the fourth controller (238) of the air conditioning outdoor unit (120) performs processing based on the first control signal.

[0073] (6) An example of the operation of the first controller of an air conditioning indoor unit An example of the operation of the first controller (102) of the air conditioning indoor unit (130) will be described with reference to Figures 5 and 10. Figure 10 is a flow chart showing an example of the operation of the first controller (102) of the air conditioning indoor unit (130).

[0074] 5 and 10, in step S1, the first controller (102) determines whether the ventilation device (210) is operating. The operation of the ventilation device (210) indicates a state in which the ventilation device (210) consumes power by performing ventilation processing by rotating the fan (240) (see FIG. 1), etc.

[0075] When the first controller (102) determines that the ventilation device (210) is not operating, the process proceeds to step S2.

[0076] When the first controller (102) determines that the ventilation device (210) is operating, the process proceeds to step S3.

[0077] In step S2, the first controller (102) sets the upper limit of the power consumption of the air conditioning indoor unit (130) to a first predetermined value. The first predetermined value is set to a value that does not trip the breaker when setting the power consumption of the air conditioning indoor unit (130), without taking into account the power consumption of the ventilation device (210). As a result, the first controller (102) operates so that the power consumption of the air conditioning indoor unit (130) does not exceed the first predetermined value.

[0078] When the process shown in step S2 is completed, the process proceeds to step S1.

[0079] In step S3, the first controller (102) sets the upper limit of the power consumption of the air conditioning indoor unit (130) to a second predetermined value lower than the first predetermined value (second predetermined value<first predetermined value). The second predetermined value is set to a value that does not trip a breaker while taking into consideration the power consumption of the ventilation device (210) when setting the power consumption of the air conditioning indoor unit (130). The difference between the first predetermined value and the second predetermined value is set based on the power consumption of the ventilation device (210) and is set to, for example, a value substantially equal to or slightly larger than the upper limit of the power consumption of the ventilation device (210). For example, when the first predetermined value is set to 1500 W and the upper limit of the power consumption of the ventilation device (210) is 200 W, the second predetermined value is set to 1300 W. As a result, the first controller (102) operates so that the power consumption of the air conditioning indoor unit (130) does not exceed the second predetermined value.

[0080] When the process shown in step S3 is completed, the process proceeds to step S1.

[0081] (7) Effects of the embodiment As described above, the ventilation device (210) includes a power supply terminal block (243). The power supply terminal block (243) includes a first input terminal (306) for receiving power from the air conditioning indoor unit (130) and a second output terminal (356) for outputting power to the air conditioning outdoor unit (120). Power is sent to the first motor (232) of the ventilation device (210) and other devices via the power supply terminal block (243). By configuring the power supply terminal block (243) of the ventilation device (210) so that the power is branched and sent to the air conditioning outdoor unit (120) and the first motor (232) of the ventilation device (210) and other devices via the power supply terminal block (243) of the ventilation device (210), there is no need to add a power supply for the ventilation device (210) and no need to modify the power supply configuration of the air conditioning indoor unit (130), and therefore the ventilation device (210) can be easily installed.

[0082] The first controller (102) of the air conditioner (110) changes the upper limit of power consumption of the air conditioner (110) in accordance with the power consumption of the ventilation device (210). As a result, even if the ventilation device (210) is also used while the air conditioner (110) is in use, it is possible to prevent the breaker of the commercial power supply from tripping.

[0083] (8) First Modification In the first modified example, power is sent from the air conditioning outdoor unit (120) to the ventilation device (210) and the air conditioning indoor unit (130). In this case, the air conditioning outdoor unit (120) receives power from the power grid, a first input terminal (306) of a power terminal block (243) of the ventilation device (210) receives power from the air conditioning outdoor unit (120), and a second output terminal (356) of the power terminal block (243) outputs power to the air conditioning indoor unit (130). In addition, power is sent to a first motor (232) of the ventilation device (210) and the like via the power terminal block (243) of the ventilation device (210).

[0084] (9) Second Modification In this embodiment, in the power supply terminal block (243) of the ventilation outdoor unit (230), the first terminal block (300) and the second terminal block (350) are configured separately. However, the present invention is not limited to this. The first terminal block (300) and the second terminal block (350) may be configured integrally. In this case, the first input terminal (306) of the first terminal block (300) and the second output terminal (356) of the second terminal block (350) are provided in the same housing, and the first input terminal (306) and the second output terminal (356) are electrically connected within the housing.

[0085] Although the embodiments have been described above, it will be understood that various modifications of form and details are possible without departing from the spirit and scope of the claims. In addition, the above embodiments, modifications, and other embodiments may be appropriately combined or substituted as long as the functions of the subject of the present disclosure are not impaired.

[0086] The descriptions "first," "second," "third," etc. mentioned above are used to distinguish the words to which these descriptions are attached, and do not limit the number or order of the words. [Industrial Applicability]

[0087] The present disclosure is useful for ventilation and air conditioning systems. [Explanation of symbols]

[0088] 110 Air conditioner 120 Outdoor unit (air conditioner outdoor unit) 130 Indoor unit (air conditioning indoor unit) 220 Second ventilation unit (ventilation indoor unit) 230 First ventilation unit (outdoor ventilation unit) 232 Blower section (first motor) 236 Second input terminal 243 Power terminal block 306 1st input terminal 810, 820 1st wiring 830, 840 2nd wiring

Claims

1. 1. A ventilation device comprising: a power supply terminal block (243) having a first input terminal (306) to which power is input from one of the indoor unit (130) and the outdoor unit (120) of the air conditioner (110); A blower (232) that performs ventilation processing by rotating; Equipped with The air blower (232) is driven by the power supplied via the power supply terminal block (243), the power supply terminal block (243) has an output terminal (356) for outputting the power to the other of the indoor unit (130) and the outdoor unit (120); The ventilation device includes: a first wiring (810, 820) for transmitting the power from the first input terminal (306) to the output terminal (356); a second wiring (830, 840) for transmitting power from the first input terminal (306); a power supply circuit (921) that supplies the power transmitted through the second wiring (830, 840) to the air blower (232); A ventilation device comprising:

2. In claim 1, the first input terminal (306) of the power supply terminal block (243) receives an input of a first signal for communication between the indoor unit (130) and the outdoor unit (120); The output terminal (356) of the power supply terminal block (243) outputs the first signal.

3. In claim 2, A ventilation device comprising a control signal wiring (850) that transmits the first signal input to the first input terminal (306) to the output terminal (356).

4. In claim 2 or 3, The ventilation device further comprises a second input terminal (236) for receiving a second signal for communication between the indoor unit (130) and the ventilation device.

5. In any one of claims 1 to 4, a first ventilation unit (230) including the power supply terminal block (243) and the blower (232); a second ventilation unit (220) including an outside air outlet (22a) for blowing out outside air; Equipped with A ventilation device, wherein the first ventilation unit (230) includes a communication terminal (237) for communicating with the second ventilation unit (220).

6. A ventilation device according to any one of claims 1 to 5; The air conditioner (110), Equipped with An air conditioning system in which a portion of the power sent from one of the indoor unit (130) and the outdoor unit (120) of the air conditioner (110) to the power supply terminal block (243) is sent to the ventilation device via the second wiring (830, 840), and another portion of the power sent from the one of the indoor unit (130) and the outdoor unit (120) to the power supply terminal block (243) is sent to the other of the indoor unit (130) and the outdoor unit (120) via the first wiring (810, 820).

7. In claim 6, The air conditioner (110) is an air conditioning system that changes an upper limit of power consumption of the air conditioner (110) in accordance with power consumption of the ventilation device.

8. In claim 6 or 7, An air conditioning system comprising a ventilator remote control that transmits an operation signal to the ventilator.

9. In claim 8, The indoor unit (130) includes a controller (102) that controls components of the indoor unit (130) including a crossflow fan (150) or flaps (91, 92); The ventilator remote control transmits commands to the controller (102) in response to user operations.

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