JP5261955B2 - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner improving workability of electric wiring. <P>SOLUTION: A bathroom air conditioner 1A comprises an air conditioner body 2A having a fan and a heater and driven by the supply of power, and a relay terminal board 3a having a plurality of connecting terminals 30A to which wiring from the outside and wiring 31 from the air conditioner body 2A are connected, and independent of the air conditioner body 2A. The relay terminal board 3A is installed near an inspection opening 105 provided in a ceiling panel 102 of a bathroom 101. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a wiring connection structure in an air conditioner that is installed in a bathroom or a bathroom dressing room and performs indoor heating or the like.

  Conventionally, an air conditioner that is installed in a bathroom and heats the bathroom or ventilates the building has been proposed. Such an air conditioner is configured to be installed on the ceiling of the bathroom, and the power supply wiring is such that the wiring from the distribution board is directly connected to the air conditioner through the back of the ceiling.

  Moreover, the wiring of a remote control device or the like for operating the air conditioner is also connected directly to the air conditioner.

  In addition, the terminal to which the wiring provided in the air conditioner body is connected is equipped with a thermal fuse that is cut when the temperature rises, so that the power supply can be shut off when the wiring connection to the air conditioner is incomplete. An apparatus has been proposed (see, for example, Patent Document 1).

JP 2005-106392 A

  In the air conditioner installed on the ceiling of the bathroom, it is necessary to perform wiring work to the apparatus main body in the space behind the ceiling from the inspection port provided on the ceiling of the bathroom. However, depending on the installation position of the apparatus main body and the installation direction, when the terminal of the apparatus main body does not face the inspection port, there is a problem that workability is deteriorated.

  For this reason, there is a case where a construction method in which the power supply wiring is connected to the apparatus main body in advance and connected to the wiring from the distribution board in the middle is adopted at the construction site. However, in such a connection form, it is difficult to find a connection failure, and the thermal fuse provided in the apparatus main body does not function sufficiently.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide an air conditioner that improves the workability of electrical wiring and can detect a connection failure.

The air conditioner of the present invention has an air conditioner main body driven by power supply and a connection terminal to which external wiring including at least power supply wiring from the distribution board is connected. The power supply wiring from the panel and the power supply wiring from the air conditioner main unit are connected to the connection terminals, the relay device independent from the air conditioner main unit, and the state detection means that is provided in the relay device and detects a change in the state of the wiring The relay device is installed in the vicinity of the inspection port provided on the ceiling where the air conditioner main body is installed , the state detection means includes temperature detection means for detecting the temperature by the relay device, and the temperature detection means is , Provided at the connection terminal .

In the air conditioner of the present invention, the external power supply wiring including the power supply wiring from the distribution board is connected to the connection terminal of the relay device, and is connected to the power supply wiring from the air conditioning device body by the relay device. The relay device, is detected in a state of change state detection means of the wiring of the power supply or the like, the temperature rise of the connecting portion of the wiring in the RELAY device is detected.

  According to the air conditioner of the present invention, it is possible to perform an external wiring connection work such as a power supply with a relay terminal block installed in the vicinity of the inspection port. Regardless of this, the workability of the wiring work is improved and the confirmation after the work can be performed easily and reliably. Thereby, work mistakes can be significantly reduced.

  In addition, according to the air conditioner of the present invention, it is possible to detect a defect such as a connection point of the wiring from a change in the state of the wiring such as the power source. This makes it possible to shut off the power supply and notify the user, thereby improving safety.

  Hereinafter, an embodiment of a bathroom air conditioner of the present invention will be described with reference to the drawings.

<Configuration example of bathroom air conditioner according to the first embodiment>
FIG. 1 is a configuration diagram illustrating an example of a bathroom air conditioner according to the first embodiment. FIG. 1A is a bathroom in which the bathroom air conditioner 1A and the bathroom air conditioner 1A according to the first embodiment are installed. FIG. 1B is a plan view showing the outline of the configuration of the ceiling panel 102 of the bathroom 101 in which the bathroom air conditioner 1A and the bathroom air conditioner 1A are installed.

  The bathroom air conditioner 1A according to the first embodiment includes an air conditioner body 2A and a relay terminal block 3A. The air conditioner main body 2A includes a fan and an electric heater (not shown), sucks and circulates the air in the bathroom 101, and blows out hot air and the like, and discharges the air sucked from the bathroom 101 to the outside. .

  The ceiling panel 102 of the bathroom 101, which is a building structure, is formed with an opening for receiving the air conditioner main body 2A, and the air conditioner main body 2A is formed with an inlet grill for sucking air and an outlet grill for blowing air. The installed front panel 20 is exposed so that it is suspended from the back of the ceiling or fixed to the ceiling panel 102.

  The air conditioner body 2A attached to the ceiling panel 102 of the bathroom 101 has an exhaust duct 21 connected to an exhaust port (not shown). The exhaust duct 21 is connected to an outdoor grill 21 a attached to the outer wall 103 of the building, and is configured to be able to exhaust the air sucked from the bathroom 101 or the like by the air conditioner body 2 </ b> A to the outside through the exhaust duct 21.

  The bathroom 101 is provided with an inspection port 105 that can be opened and closed on the ceiling panel 102, and from the inspection port 105, connection work of the exhaust duct 21 and various inspections of the air conditioner main body 2A are performed.

  In the bathroom air conditioner 1 </ b> A, the main operation unit 4 that receives an operation of a bather or the like is installed in the bathroom undressing place 104 adjacent to the bathroom 101, and the operation mode selected by the main operation unit 4 is executed.

  For example, in a predetermined operation of the main operation unit 4, a heating operation mode is performed in which warm air is blown out by circulating air in the bathroom air conditioner 1 </ b> A to heat the bathroom 101. In addition, a ventilation operation mode in which the air in the bathroom 101 is discharged outdoors by the bathroom air conditioner 1A to ventilate the bathroom 101, and a 24-hour ventilation operation mode in which ventilation is performed with an air volume that allows the building air to be replaced in a predetermined time. Is executed.

  Furthermore, while the bathroom air conditioner 1A blows out warm air by circulating air, the air in the bathroom 101 is discharged to the outside, and the clothes dried in the bathroom 101 are dried, and the bathroom air conditioner 1A. A cool air operation mode in which air is blown by the circulating air is executed.

  The relay terminal block 3A is a component independent of the air conditioner body 2A, and includes one or a plurality of connection terminals 30A according to the configuration of the bathroom air conditioner 2A. The connection terminal 30A has, for example, a structure in which a core wire from which a cable is peeled off is inserted and fixed, a detachable connector, and the like are provided according to the type of wiring. In addition, the direction on the relay terminal block 3A is set so that wiring from the outside can be made from one direction indicated by an arrow A. The relay terminal block 3 </ b> A is installed near the inspection port 105 and with each connection terminal 30 </ b> A facing the inspection port 105 regardless of the installation position of the air conditioner main body 2 </ b> A.

  The air conditioner main body 2A includes, for example, an external terminal block 22 on the upper surface of the case, and the connection terminals 23 provided on the external terminal block 22 and the corresponding connection terminals 30A of the relay terminal block 3A are respectively connected by wirings 31 to provide air conditioning. A board accommodated in a board box or the like (not shown) in the apparatus main body 2A is electrically connected to each connection terminal 30A of the relay terminal block 3A.

  In the bathroom air conditioner 1A, the wiring 40A from the main operation unit 4 is connected to a predetermined connection terminal 30A of the relay terminal block 3A.

  In the bathroom air conditioner 1A, a power supply wiring 40B from a distribution board (not shown) is connected to a predetermined connection terminal 30A of the relay terminal block 3A.

  The relay terminal block 3A is provided with a connection terminal 30A to which an external device linked to the bathroom air conditioner 1A is connected. For example, in a configuration in which the bathroom air conditioner 1A is linked to a ventilation fan in another room (not shown), the external wiring 40C connected to the ventilation fan is connected to a predetermined connection terminal 30A of the relay terminal block 3A. Furthermore, in a configuration that works with a mist generator (not shown) that humidifies the bathroom 101, the external wiring 40C connected to the mist generator is connected to a predetermined connection terminal 30A of the relay terminal block 3A.

  Thus, 1 A of bathroom air conditioners are the structures which can perform the electrical connection with the external apparatus linked with the main operation part 4 and power supply which are required for driving | operation via 3 A of relay terminals.

  In the bathroom air conditioner 1A, the installation location and installation direction are determined according to the arrangement and size of the bathtub 101a and the washing area 101b of the bathroom 101, and the external terminal block 22 of the air conditioner body 2A is directed to the inspection port 105. There may be no. The dimension in the height direction of the ceiling of the bathroom 101 is, for example, about 250 mm, and if the external terminal block 22 of the air conditioner main body 2A does not face the inspection port 105, the connection work to the external terminal block 22 on the ceiling is performed. It is difficult.

  On the other hand, the external terminal block 22 and the relay terminal block 3A of the air conditioner main body 2A are connected by the wiring 31, and the relay terminal block 3A is installed near the inspection port 105 to interlock with the main operation unit 4 and the power source. By performing electrical connection with an external device via the relay terminal block 3A, connection work can be performed near the inspection port 105 regardless of the installation position and installation direction of the air conditioner body 2A.

  Further, since each connection terminal 30A of the relay terminal block 3A is installed toward the inspection port 105, the connection work and the confirmation after the work can be easily and reliably performed. Thereby, especially in the installation work of the bathroom air conditioner 1A, the wiring work of the electric wiring can be easily and reliably performed, and the work mistake can be greatly reduced.

  In addition, when each wiring 40 is normally connected to the connection terminal 30A, a means for visually confirming may be provided such that a color-coded pin protrudes.

  Here, if the connection terminal 23 provided in the external terminal block 22 of the air conditioner main body 2A is also configured to be able to attach and detach wiring, an appropriate length is previously set in accordance with the distance between the air conditioner main body 2A and the relay terminal block 3A. By connecting the air conditioner main body 2A and the relay terminal block 3A with the wiring 31, the excess or deficiency of the wiring 31 can be eliminated.

  FIG. 2 is a block diagram showing a modification of the bathroom air conditioner of the first embodiment. On the other hand, as shown in FIG. 2, each wiring 31 connected to the connection terminal 30A of the relay terminal block 3A is an air conditioner. It may be introduced into the main body 2A and directly connected to a substrate (not shown).

<Configuration example of bathroom air conditioner according to second embodiment>
In the conventional bathroom air conditioner, the power supply wiring is directly connected from the distribution board to the external terminal block of the air conditioner body. However, when the external terminal block is not suitable for the inspection port of the ceiling panel, the workability is poor, and there is a possibility that a connection error may occur due to the poor workability.

  Therefore, as in the bathroom air conditioner 1A of the first embodiment, if the relay terminal block 3A is installed near the inspection port 105 and the power supply wiring is connected via the relay terminal block 3A, Thus, it becomes possible to reduce mistakes in connection work.

  On the other hand, among the wires connected to the bathroom air conditioner, a high current flows through the power supply wires, and therefore, when there is a mistake in the connection work, the temperature of the connection portion may become high.

  Therefore, the bathroom air conditioner of the second embodiment is provided with a state detection unit that detects a change in state including an abnormality such as a temperature rise at a wiring relay point outside the air conditioner main body, thereby improving safety.

  FIG. 3 is a configuration diagram illustrating an example of a bathroom air conditioner according to the second embodiment. A bathroom air conditioner 1B according to the second embodiment includes an air conditioner body 2B and a relay device 3B. The air conditioner body 2B includes a fan and an electric heater (not shown), and has a function of sucking and circulating the air in the bathroom 101 to blow out warm air and the like, a function of exhausting the air sucked from the bathroom 101 to the outdoors, and the like. .

  The ceiling panel 102 of the bathroom 101 is formed with an opening for receiving the air conditioner main body 2B. The air conditioner main body 2B has a front grille 20 formed with an inlet grill into which air is sucked and an outlet grill from which air is blown out. Is exposed from the ceiling, or is fixed to the ceiling panel 102 or the like.

  In the air conditioner main body 2B attached to the ceiling panel 102 of the bathroom 101, an exhaust duct 21 is connected to an exhaust port (not shown). The exhaust duct 21 is connected to an outdoor grill 21a attached to the outer wall 103 of the building, and is configured such that air sucked from the bathroom 101 or the like by the air conditioner main body 2B can be exhausted to the outdoors via the exhaust duct 21.

  The bathroom 101 is provided with an inspection port 105 that can be opened and closed on the ceiling panel 102. From the inspection port 105, connection work of the exhaust duct 21, various inspections of the air conditioner main body 2B, and the like are performed.

  In the bathroom air conditioner 1 </ b> B, a main operation unit 4 that receives an operation of a bather or the like is installed in a bathroom undressing place 104 adjacent to the bathroom 101. For example, the main operation unit 4 is directly connected to a wiring 40D connected to a board (not shown) of the air conditioner main body 2B, and the operation mode selected by the main operation unit 4 is executed in the bathroom air conditioner 1B.

  For example, in a predetermined operation of the main operation unit 4, a heating operation mode is performed in which warm air is blown out by circulating air in the bathroom air conditioner 1B to heat the bathroom 101. The bathroom air conditioner 1B exhausts the air in the bathroom 101 to the outside to ventilate the bathroom 101, and the 24-hour ventilation operation mode in which ventilation is performed with an air volume that allows the building air to be replaced in a predetermined time. Is executed.

  Furthermore, while the bathroom air-conditioning apparatus 1B blows out warm air by circulating air, the air in the bathroom 101 is discharged to the outside and the clothes dried in the bathroom 101 are dried, and the bathroom air-conditioning apparatus 1B. A cool air operation mode in which air is blown by the circulating air is executed.

  The relay device 3B is a component independent of the air conditioner main body 2B, and is installed near the inspection port 105 of the ceiling panel 102. In this example, the power supply wiring 41 is provided between the air conditioner main body 2B and a distribution board (not shown). Is relayed.

  FIG. 4 is a configuration diagram illustrating an example of a relay device. FIG. 4A is a side sectional view of the relay device 3B according to the present embodiment, and FIG. 4B is a diagram illustrating the relay device 3B according to the present embodiment. FIG.

  The relay device 3B includes a connection terminal 30B, a temperature sensor 32a, a temperature fuse 32b, a board 33 on which the connection terminal 30B, the temperature sensor 32a, and the temperature fuse 32b are mounted, and a case 34 that houses the board 33.

  The connection terminal 30B has, for example, a structure in which a core wire with a cable sheath peeled off is inserted and fixed, and a power supply wiring 41A from the air conditioner body 2B and a power supply wiring 41B from a distribution board (not shown) are connected. . Since the power supply wiring 41B from the distribution board is connected at the construction site (bathroom), the connection terminal 30B may have a configuration that allows the power supply wiring 41B to be easily connected.

  Further, the board 33 is provided with a power supply wiring 41A connected to the connection terminal 30B and a binding member 33a for fixing the power supply wiring 41B, and the power supply wiring 41A and the power supply wiring 41B connected to the connection terminal 30B move carelessly. To prevent disconnection.

  The temperature sensor 32a is an example of a temperature detection unit or a first temperature detection unit which is a state detection unit. For example, a change in state caused by a current flowing through the power supply wires 41A, 41B or the like is detected in the case 34 of the relay device 3B. The temperature is detected mainly by the temperature of the connection terminal 30B.

  For this reason, the substrate 33 is formed with an opening 33b on the back surface of the installation location of the connection terminal 30B, and the temperature sensor 32a is installed in the opening 33b of the substrate 33, for example, in contact with the connection terminal 30B. It should be noted that the temperature sensor 32a is arranged on the upper side with respect to the connection terminal 30B, which is the main temperature detection object, so that the temperature sensor 32a can easily detect the heat generated and rising at the connection terminal 30B.

  The temperature sensor 32a is connected to a substrate housed in a substrate box (not shown) in the air conditioner main body 2B by a signal wiring 42, and the output of the temperature sensor 32a is output to a control unit described later of the bathroom air conditioner 1B.

  The thermal fuse 32b is an example of a power cut-off means. The power supply wire 41A from the air conditioner main body 2B and the connection terminal 30B are connected and conducted, and cut at a predetermined temperature to supply power to the air conditioner main body 2B. Disconnect.

  The case 34 is formed of a non-combustible material such as metal, and has a configuration in which air does not easily enter the interior without providing openings other than the power supply wirings 41A and 41B and the signal wiring 42 outlet.

  The substrate 33 is attached to the case 34 via the legs 34 a and is floated so as not to directly contact the case 34. Further, as shown in FIG. 3, the case 34 is installed on the ceiling panel 102 of the bathroom 101 via the mounting legs 34b, and the relay device 3B prevents the case 34 from directly contacting the ceiling panel 102 and the upper surface of the ceiling. It is floating on.

  The air conditioner main body 2B includes, for example, an external terminal block 22 on the upper surface of the case, and the power connection terminal 24 provided on the external terminal block 22 and the connection terminal 30B of the relay device 3B are connected by a power supply line 41A.

  The bathroom air conditioner 1 </ b> B includes a thermal fuse 25 at the power connection terminal 24 of the external terminal block 22. The thermal fuse 25 is an example of a second temperature detection unit that constitutes a power disconnection unit. The power fuse 24 is connected to a heater (not shown) and disconnected at a predetermined temperature so that no current flows through the heater. .

<Example of control function of bathroom air conditioner according to second embodiment>
FIG. 5 is a functional block diagram of the bathroom air conditioner of the second embodiment. Next, an example of a control function of the bathroom air conditioner 1B of the second embodiment will be described.

  In the bathroom air conditioner 1B, a main control unit 5 that is a control means is realized by a CPU, a circuit configuration, and the like mounted on a board (not shown) provided in the air conditioner main body 2B. The bathroom air conditioner 1 </ b> B includes a heater 51 that heats air and a fan motor 52 that drives a fan that blows air in the air conditioner main body 2 </ b> B. The main control unit 5 controls energization of the heater 51 and the operation of the fan motor 52. Take control.

  The bathroom air conditioner 1 </ b> B includes a buzzer 53 as a notification unit in the air conditioner main body 2 </ b> B, and the main control unit 5 performs alarm sound generation control by the buzzer 53.

  Further, the main controller 5 is connected to an EEPROM 54 which is a non-volatile storage means, and uses the timer 55 to record an abnormality occurrence log together with time information in the EEPROM 54.

  In the bathroom air conditioner 1B, operation information obtained by pressing the operation button in the main operation unit 4 is input to the main control unit 5, and the main control unit 5 turns on the heater 51 and the fan motor 52 according to a program stored in advance. Control.

  The main operation unit 4 includes a buzzer 56 as a notification unit and a display unit 57 as a display unit. The main control unit 5 controls generation of an alarm sound by the buzzer 56 and display control at the display unit 57. Do.

  The main control unit 5 receives the temperature information detected by the temperature sensor 32a of the relay device 3B, and stops the operation according to the temperature in the relay device 3B, mainly the temperature of the connection location of the power supply wiring 41. Execute control.

<Operation example of bathroom air conditioner of second embodiment>
FIG. 6 is a flowchart showing an example of the operation of the bathroom air conditioner according to the second embodiment. Next, referring to each figure, the temperature detection at the connection point of the power supply wiring and the operation stop of the bathroom air conditioner are shown. The operation will be described.

  Step SA1: The bathroom air conditioner 1B detects the output of the temperature sensor 32a of the relay device 3B at any time or periodically by the main controller 5.

  Step SA2: Based on the result of detecting the output from the temperature sensor 32a, the main controller 5 determines that the temperature sensor 32a is not properly connected, and if there is no output signal from the temperature sensor 32a, the bathroom air conditioner 1B When there is an output signal from the temperature sensor 32a, it is determined that the temperature sensor 32a is correctly connected, and the bathroom air conditioner 1B is activated.

  Step SA3: The main controller 5 monitors the temperature in the relay device 3B from the output of the temperature sensor 32a, mainly the presence / absence of a temperature increase at the connection location of the power supply wiring 41.

  Step SA4: When the temperature detected by the temperature sensor 32a exceeds the predetermined upper limit temperature in Step SA3 described above, the main control unit 5 stops energization to the heater 51 and also stops the operation of the fan motor 52, and the bathroom air conditioner Stop the operation of 1B.

  That is, during the execution of the heating operation mode or the drying operation mode in the bathroom air conditioner 1B, a high current flows through the power supply wiring 41 by energizing the heater 51, which may promote an excessive temperature rise. When the temperature detected in the relay device 3B by the temperature sensor 32a exceeds the upper limit temperature, the energization to the heater 51 is stopped and the temperature rise is suppressed.

  Step SA5: When the temperature detected by the temperature sensor 32a exceeds a predetermined upper limit temperature and the operation of the bathroom air conditioner 1B is stopped, the main control unit 5 causes the buzzer 53 and the main operation unit 4 provided in the air conditioner main body 2B to stop. The provided buzzer 56 is operated to generate an alarm sound.

  Step SA6: When the temperature detected by the temperature sensor 32a exceeds a predetermined upper limit temperature and the operation of the bathroom air conditioner 1B is stopped, the main control unit 5 displays an error on the display unit 57 of the main operation unit 4.

  Step SA7: When the temperature detected by the temperature sensor 32a exceeds the predetermined upper limit temperature and the operation of the bathroom air conditioner 1B is stopped, the main control unit 5 records the abnormality detection flag and the abnormality occurrence time in the EEPROM 54, Error information can be referred to when investigating the cause of.

  Step SA8: The main control unit 5 monitors the operation of a reset button (not shown) provided in the main operation unit 4 or the air conditioner body 2B.

  Step SA9: When the reset button is pressed in Step SA8 described above, the main control unit 5 stops the buzzer 53 provided in the air conditioner main body 2B and the buzzer 56 provided in the main operation unit 4, and stops the generation of the alarm sound. Let On the other hand, when the abnormality detection flag is recorded, since the cause of the abnormality has not been removed, the error display continues and the operation of the bathroom air conditioner 1B is continued.

  Thus, even if the main operation unit 4 is operated until the cause of the abnormality, in this example, the cause of the temperature rise at the connection point of the power supply wiring 41 is removed, the bathroom air conditioner 1B does not operate, The temperature rise of the wiring 41 can be prevented again.

  Step SA10: When the cause of the abnormality is removed by repair or the like and a predetermined error canceling operation is performed, the abnormality detection flag is canceled and the bathroom air conditioner 1B can be restarted.

  Here, when the operation stop control based on the temperature detection described above cannot be performed due to an abnormality of the temperature sensor 32a or an abnormality of the main control unit 5, when the temperature of the power supply wiring 41 rises, the temperature fuse 32b provided in the relay device 3B. Is cut at a predetermined temperature, so that no current flows through the heater 51.

  Further, when the operation stop control based on the temperature detection described above cannot be performed due to an abnormality of the temperature sensor 32a or an abnormality of the main control unit 5, if the temperature of the power supply wiring 41 rises, the external terminal block 22 of the air conditioner body 2B The thermal fuse 25 provided in the power connection terminal 24 is cut at a predetermined temperature, so that no current flows through the heater 51.

  In general, the temperature sensor 32a is used from the cutting temperature of the temperature fuse 32b and the temperature fuse 25 so that the operation is stopped by the temperature detection by the temperature sensor 32a before the temperature fuse 32b and the temperature fuse 25 are disconnected due to the temperature rise. The upper limit temperature of the detection temperature at is set low.

  Note that the main control unit 5 may be notified that the temperature fuse 32b or the temperature fuse 25 has been cut, and may be recorded in the EEPROM 54 as information for specifying the location where the abnormality has occurred.

  As described above, in the bathroom air conditioner 1B of the second embodiment, when the temperature rise of the power supply wiring 41 in the relay device 3B is detected and the detected temperature exceeds a predetermined upper limit temperature, the heater 51 Since energization is stopped, an excessive temperature rise at the connection point of the power supply line 41 can be suppressed by preventing a high current from flowing when the temperature rises at the connection point of the power supply line 41.

  In this way, it is possible to detect a problem in the connection location of the power supply wiring 41 and shut off the power supply or notify the user, so that safety can be improved.

  In addition, since the relay device 3B is covered with the nonflammable case 34 and has a structure in which air does not easily enter the case 34, the nonflammable effect can be improved.

  Further, in the relay device 3B, the board 33 on which the connection terminal 30B for connecting the power supply wiring 41 is mounted is attached to the case 34 via the leg 34a, and the case 34 is attached to the ceiling of the bathroom 101 via the attachment leg 34b. Since it is installed on the panel 102, the heat generated at the connection point of the power supply wiring 41 is not easily transmitted to the ceiling panel 102 via the case 34.

  In the above example, the temperature sensor 32a detects the temperature of the connection point of the power supply wiring 41 in the relay device 3B and performs control to stop the operation. However, the operation is stopped using the smoke sensor. You may make it perform control to perform.

  Even in the bathroom air conditioner 1B according to the second embodiment, the relay device 3B is installed near the inspection port 105 of the ceiling panel 102. Therefore, the workability is improved regardless of the installation position and the installation direction of the air conditioner main body 2B. improves.

  Therefore, similarly to the bathroom air conditioner 1A of the first embodiment, not only the power supply wiring 41 but also an external device (not shown) may be connected via the relay device 3B.

  Moreover, the power supply wiring 41A connected to the connection terminal 30B of the relay device 3B may be introduced into the air conditioner main body 2B and directly connected to a substrate (not shown). Furthermore, the power supply wiring directly connected to the air conditioner main body 2B may be connected to the relay terminal block described in the first embodiment and connected from the relay terminal block to the relay device 3B.

  Further, the main operation unit 4 and the air conditioner body 2B may be directly connected without using the relay device 3B as shown in FIG. 3, or may be connected via the relay device 3B, or may be wirelessly connected. .

  The present invention is applied to an air conditioner incorporating an electric heater such as a bathroom heater or a bathroom heater.

It is a block diagram which shows an example of the bathroom air conditioner of 1st Embodiment. It is a block diagram which shows the modification of the bathroom air conditioner of 1st Embodiment. It is a block diagram which shows an example of the bathroom air conditioner of 2nd Embodiment. It is a block diagram which shows an example of a relay apparatus. It is a functional block diagram of the bathroom air conditioner of a 2nd embodiment. It is a flowchart which shows an example of operation | movement of the bathroom air conditioner of 2nd Embodiment.

Explanation of symbols

  1A, 1B ... Bathroom air conditioner, 2A, 2B ... Air conditioner body, 22 ... External terminal block, 23 ... Connection terminal, 24 ... Power connection terminal, 25 ... Thermal fuse, 3A ... Relay terminal block, 3B ... Relay device, 30A, 30B ... Connection terminal, 31 ... Wiring, 32a ... Temperature sensor, 32b ... Temperature fuse, 33 ... Substrate, 34 ... Case, 4 ... Main operation unit, 5 ... Main control unit, 101 ... Bathroom, 102 ... Ceiling panel, 105 ... Inspection port

Claims (2)

An air conditioner body that is driven by power supply;
It has a connection terminal to which external wiring including at least power supply wiring from the distribution board is connected, and at least power supply wiring from the distribution board and power supply wiring from the air conditioner body are connected to the connection terminal. A relay device independent from the air conditioner body,
Provided in the relay device, comprising a state detection means for detecting a change in the state of the wiring,
The relay device is installed in the vicinity of an inspection port provided on the ceiling where the air conditioner body is installed,
The state detection means includes a temperature detection means for detecting temperature by the relay device,
The air conditioner characterized in that the temperature detection means is provided in the connection terminal . 2. The air conditioner according to claim 1, wherein the relay device is covered with a metal case and is floated via an attachment leg .

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