JP5368223B2 - Air conditioner indoor unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrical box having a structure facilitating connecting work of a cable to a terminal block. <P>SOLUTION: The electrical box 10 is arranged in a storage space formed on one side in the right and left direction of a cabinet, and the terminal block 42 for connecting the cable 46 is provided in the upper part of the electrical box 10. An insertion port 47 of the cable 46 is formed in the lower part of the electrical box 10, and is positioned on one side relative to the terminal block 42. The terminal block 42 is arranged slantly to face the one side. The cable 46 inserted from the lower part to the upper part of the electrical box 10 is wired slantly so as to come closer from the one side to the other side. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an indoor unit of an air conditioner in which a cabinet including a heat exchanger and a fan is made compact.

  The indoor unit of the air conditioner is equipped with a fan and a heat exchanger. A fan is disposed below the heat exchanger, and the heat exchanger is provided so as to surround the fan. A part of the refrigerant pipe projects from one side of the heat exchanger in the left-right direction, and a fan motor for driving the fan is also provided on the one side. In addition, an electrical box is arranged in a storage space on one side inside the cabinet.

  A part of the refrigerant pipe and a fan motor enter the housing space. The structure of the electrical box is restricted depending on the members that enter the housing space. In Patent Document 1, an inclined surface portion that is inclined so as to narrow an excess space in the electrical box is provided, and an electrical component having a large overhang is disposed in a housing portion in which a gap between the lid and the inclined surface portion is widened. It is described that an electrical component with a small overhang amount is arranged in the accommodating portion where the distance between the inclined surface portion and the inclined surface portion is reduced.

Japanese Patent No. 4187031

  Incidentally, the electrical box is provided with a terminal block for connecting a cable connected to the outdoor unit. The terminal block is arranged on the upper part of the electrical box. The cable from the outdoor unit is routed from the rear side to the front side in the accommodation space, inserted from the insertion port of the electrical box, and connected to the terminal block.

  In order to avoid the refrigerant piping and the fan motor entering the storage box, the electrical box has a complicated structure. For this reason, the cable insertion port and the terminal block may not be arranged on a straight line in the vertical direction, and may be arranged shifted in the left-right direction. Thus, if the terminal block is displaced with respect to the insertion port, the cable must be connected while being bent, and the connection work becomes difficult.

  In view of the above, an object of the present invention is to provide an indoor unit of an air conditioner including an electrical box having a structure that allows easy connection work of a cable to a terminal block.

In the present invention, a fan driven by a fan motor and a heat exchanger arranged so as to surround the fan are installed in the cabinet, and a part of the refrigerant pipe protrudes from one side of the heat exchanger in the left-right direction. A fan motor is placed on one side of the left and right side of the cabinet, and an electrical box with a control board on which electrical components are mounted is placed in the storage space formed on one side of the cabinet in the left and right direction. A terminal block for connecting the cable is provided, the terminal block is tilted to one side, and the cable inserted from the bottom to the top of the electrical box is slanted so that it approaches the other side from one side It is wired.

  By tilting the terminal block toward one side, it is easy to see the terminal block when looking up from below. Therefore, it is possible to easily connect the cable inserted from the lower side of the electrical box to the terminal block.

  A cable insertion port is formed in the lower part of the electrical box, and the insertion port is located on one side of the terminal block. In this case, the insertion port and the terminal block are displaced in the left-right direction. However, since the terminal block is tilted, the cable can be wired obliquely by bending the cable slightly. Therefore, it is not necessary to bend the cable greatly, and the work becomes easy.

  The other side of the electrical box is opposite to the heat exchanger and fan motor, one side is opposite to the side of the cabinet, and the upper part of the electrical box is wider in the left and right direction than the lower part. The electrical component is provided on one side of the terminal block above the terminal block, and the electrical component is mounted on one side of the control board. It is preferable that the control board is tilted in accordance with the inclination of the terminal block so that the upper part of the control board is closer to the other side than the lower part.

  Since the control board and the terminal block are similarly tilted, the control board and the terminal block do not overlap in the front-rear direction. Therefore, the terminal block does not get in the way when taking out the control board from the electrical box.

  In the electrical box, the upper space is wider than the lower space. Therefore, it is preferable that an electrical component having a high exothermic property is disposed on the control board. Highly exothermic electrical components can be arranged together at the top, reducing the effect of heat on other electrical components. That is, the heat generated from the highly exothermic electrical component is likely to accumulate in the upper part of the electrical component box. The electrical components arranged in the lower part of the electrical box are not affected by heat and operate normally.

  According to the present invention, the structure of the electrical box is restricted by the fan motor and the refrigerant pipe that have entered the housing space, and when the cable is inserted, the terminal block and the cable insertion port are in a position shifted in the left-right direction. However, by tilting the terminal block to one side, the cable can be inserted smoothly and the cable connection work becomes easy. Along with this, it is possible to provide a structure that allows the electrical box to be mounted in a limited storage space, eliminating the need to expand the storage space and contributing to the downsizing of the cabinet. In addition, the influence of heat generated from the electrical component can be prevented from affecting other electrical components, and the reliability of the operation of the electrical component can be improved.

The perspective view when the indoor unit of the air conditioner of the present invention is viewed obliquely from below Perspective view of the indoor unit as seen from diagonally above Cross section of indoor unit A perspective view of an indoor unit in operation when viewed from diagonally below Perspective view of indoor unit with part of cabinet disassembled Perspective view of indoor unit with front panel removed Perspective view of electrical box Front view of electrical box Perspective view of indoor unit with part of cabinet removed Perspective view of indoor unit and partition member with part of cabinet removed Cross section of indoor unit with drain hose connected Cross section of the indoor unit showing the fixed state of the fan motor It is a figure which shows the lock member of a fan motor, Comprising: (a) is a figure which shows the time of a locked state, (b) is a figure which shows the time of a lock release state Perspective view of indoor unit when fan is removed from cabinet The figure which shows the position of the left and right drain ports when the indoor unit is viewed from the rear side Sectional view of the indoor unit showing the drain port on the other side Joint perspective view

  The indoor unit of the air conditioner of this embodiment is shown in FIGS. The indoor unit includes a heat exchanger 1 and a fan 2, which are housed in a cabinet 3. The cabinet 3 is formed in a box shape having substantially the same height and depth, the front side of the upper surface is gently inclined, and is curved from the lower part of the front surface to the lower surface. The cabinet 3 is attached to the upper part of the indoor wall so that a gap is formed between the cabinet 3 and the ceiling. Thus, since the height of the cabinet 3 is suppressed lower than the depth, the cabinet 3 looks compact when viewed from obliquely below.

  As shown in FIG. 2, an opening is formed long in the left-right direction on the upper surface of the cabinet 3, and this opening serves as a suction port 4. An air outlet 5 is formed in a curved portion at the lower front of the cabinet 3. Inside the cabinet 3, an air passage 6 extending from the suction port 4 to the air outlet 5 is formed, and the heat exchanger 1 and the fan 2 are arranged in the air passage 6. A filter 7 is detachably provided between the suction port 4 and the heat exchanger 1. In FIG. 2, the filter is not shown.

  The heat exchanger 1 is arranged in an inverted V shape and surrounds the fan 2. The fan 2 is positioned on the lower side in the cabinet 3, and the lower end of the fan 2 is lower than the lower end of the heat exchanger 1. Since the position of the fan 2 is lowered, the overall height of the cabinet 3 can be kept low.

  As shown in FIG. 5, an accommodation space 8 is formed on one side in the left-right direction inside the cabinet 3. An electrical box 10 is provided in the accommodation space 8. A display panel 11 is attached to the electrical box 10. A part of the refrigerant pipe 12 protrudes from one side of the heat exchanger 1 in the left-right direction so that it can be connected to an external pipe. A fan motor 13 is provided on one side of the fan 2 in the left-right direction. The refrigerant pipe 12 and the fan motor 13 enter the accommodation space 8. In the present embodiment, when the indoor unit is viewed from the front, the right side is one side in the left-right direction, and the left side is the other side in the left-right direction.

  The cabinet 3 includes a back plate 20, a front panel 21, a left cover 22, a right cover 23, and a front grill 24. The heat exchanger 1, the fan 2, and the electrical box 10 are detachably attached to the back plate 20. The left and right covers 22 and 23 are detachably attached to the back plate 20. The left cover 22 covers the space on the left side of the cabinet 3. The right cover 23 covers the accommodation space 8. The front panel 21 is detachably attached to the left cover 22 and the right cover 23 and covers the front surfaces of the left and right covers 22 and 23 and the front of the heat exchanger 1. The front grille 24 is detachably attached to the left cover 22 and the right cover 23 and covers the front side of the suction port 4.

  The right cover 23 surrounds the upper surface, the front surface, the lower surface, and one side surface of the accommodation space 8. Similarly, the left cover 22 surrounds a space on the other side of the cabinet 3 in the left-right direction. The electrical box 10 is hidden by the right cover 23. An operation window 25 is formed on the front surface of the right cover 23, and the electrical equipment box 10 faces the operation window 25 as shown in FIG. Wiring and the like can be performed from the outside through the operation window 25 with the front panel 21 removed. A display window 26 is formed at the lower front portion of the right cover 23, and the display panel 11 is fitted into the display window 26 so that the display panel 11 can be visually recognized from the outside.

  As shown in FIG. 2, claw 27 for attaching and detaching the left and right covers 22 and 23 is provided on the upper surface of the cabinet 3. When the user puts his hand into the gap between the upper surface of the cabinet 3 and the ceiling and pushes down the claw 27, the left and right covers 22 and 23 are detached from the upper surface of the back plate 20.

  A lateral louver 30 is provided at the air outlet 5 so as to be freely opened and closed. The lateral louver 30 is supported so as to be rotatable about an axis, and the lateral louver 30 is opened and closed by a louver motor 31. A vertical louver 32 is provided on the upstream side of the horizontal louver 30. The vertical louver 32 rotates in the left-right direction. The vertical louver 32 changes the wind direction in the left-right direction. The horizontal louver 30 and the vertical louver 32 are unitized to form a louver unit. The louver unit is detachably attached to the back plate 20. During operation of the air conditioner, as shown in FIG. 4, the vertical louver 30 is opened and the air outlet 5 is opened. During the stop, the vertical louver 30 is closed and the air outlet 5 is closed. In FIGS. 3 and 4, reference numeral 33 denotes a current plate.

  The suction port 4 is an opening surrounded by the left and right covers 22 and 23, the upper surface of the back plate 20, and the front panel 21. Therefore, the inlet 4 is not provided with a grill. The front grille 24 is a blindfold for preventing the filter 7 from being seen when viewed from the front. Since the suction port 4 has no grill, air can be sucked in without disturbing the air flow, and the suction efficiency is improved.

  A filter guide member 34 is provided in the suction port 4 along the front-rear direction. The rear end of the filter guide member 34 is attached to the back plate 20, the front end is attached to the louver unit, and the filter guide member 34 is detachable from the cabinet 3. By this filter guide member 34, the suction port 4 is divided into left and right parts. The suction port 4 may be divided into three or more or may be left as one opening without being divided.

  A filter 7 is provided for each suction port 4. As shown in FIG. 3, the filter 7 covers the front and top of the heat exchanger 1. The rear end of the filter 7 is pressed against the upper surface of the back plate 20, and the left and right side ends are pressed against one of the left and right covers 22 and 23 and the filter guide member 34. The user attaches / detaches the filter 7 from the front surface of the cabinet 3.

  The front panel 21 can be opened and closed with respect to the cabinet 3. The upper edge of the front panel 21 is rotatably supported by the left and right covers 22, 23 and the filter guide member 34. When the front panel 21 is opened, the front surface of the cabinet 3 is opened. The filter 7 is attached and detached from the front surface of the cabinet 3. The left and right covers 22 and 23 and the filter guide member 34 are provided with guides 35 for guiding the filter 7 to the mounting position so as not to jump out of the cabinet 3. Both ends of the inserted filter 7 are guided by the guide 35, and the filter 7 reaches the mounting position. In addition, the rear end of the filter 7 is pressed by the guide 36 provided on the upper surface of the back plate 20 so as not to protrude from the suction port 4.

  In the air conditioner, an outdoor unit (not shown) is installed outside the indoor unit. The outdoor unit includes a compressor, a heat exchanger, a four-way valve, an outdoor fan, and the like, and a refrigeration cycle is formed by these and the indoor heat exchanger. And the control apparatus which controls a refrigerating cycle is provided in an indoor unit. A control device including a microcomputer controls the refrigeration cycle based on a user instruction and detection signals of various sensors such as a temperature sensor that detects a room temperature and an outside temperature, and performs an air conditioning operation. At this time, the control device controls driving of the fan motor 13 and opening / closing of the louvers 30 and 32 in accordance with the cooling / heating operation.

  The control device is built in the electrical box 10. As shown in FIGS. 7 and 8, the electrical equipment box 10 includes a control board 41 on which electrical equipment 40 is mounted, a terminal block 42 for connecting cables, cords, and the like, and a base member 43 attached to the back plate 20. Have. The electrical box 10 is vertically placed in the accommodation space 8 along the front-rear direction.

  The other side of the electrical box 10 in the left-right direction faces the heat exchanger 1 and the fan motor 13. The fan motor 13 and the refrigerant pipe 12 of the heat exchanger 1 enter the accommodation space 8. The shape of the electrical box 10 is such that the upper part is wider in the left-right direction than the lower part. The lower part of the electrical box 8 is close to one side. And the control board 41 and the terminal block 42 are arrange | positioned at the upper part of the electrical equipment box 10. FIG. Since the lower part of the electrical box 10 becomes narrow, the electrical box 10 arranged in the accommodation space can avoid the fan motor 13. Therefore, it is not necessary to widen the accommodation space 8 in the left-right direction, and the cabinet 3 can be made compact.

  The base member 43 is screwed to the back plate 20, and the control board 41 is fixed to one side of the upper portion of the base member 43. The electrical component 40 is mounted on one side of the control board 41. The electrical component 40 is a CPU, a transformer, a capacitor, a noise filter, or the like constituting the control device. The electrical component 40 protrudes toward one side. A lid 44 for concealing the electrical component 40 is put on the control board 41.

  The terminal block 42 is attached to the other side of the upper portion of the base member 43. There is no refrigerant pipe 12 in the upper part on the front side of the accommodation space 8. Therefore, there is an empty space in front of the refrigerant pipe 12, and the terminal block 42 is disposed in this space. Accordingly, the terminal block 42 is located on the front side of the refrigerant pipe 12 and on the front side of the control board 41.

  A lower portion of the base member 43 serves as a wiring guide portion 45 that holds cables and cords. The wiring guide 45 guides cables and the like from the lower rear part toward the upper terminal block 42. For example, the VVF cable 46 that connects the indoor unit and the outdoor unit is connected to the connector of the terminal block 42 through the wiring guide 45 from the insertion port 47 formed on the rear side of the lower part of the base member 43. Such a cable 46 is routed from the back plate 20 of the cabinet 3 to the front side of the right cover 23 and is inserted from the lower part to the upper part of the electrical box 10. A connector hole arrangement surface 48 into which the cable 46 is inserted is formed at the lower end of the terminal block 42. A plurality of connector holes 49 are formed in the connector hole arrangement surface 48, and the cable 46 is connected to the connector through the holes 49. When the electrical box 10 is mounted on the cabinet 3, the connector hole arrangement surface 48 is located on the front side of the electrical box 10 and faces downward.

  Here, the terminal block 42 arranged at the upper part is located closer to the other side, but the lower insertion port 47 needs to be shifted closer to one side in order to avoid the fan motor 13 entering the accommodation space 8. A lateral shift occurs in the positional relationship between the terminal block 42 and the insertion port 47. Therefore, in consideration of workability when connecting the cable 46, the terminal block 42 is arranged so that the connector hole arrangement surface 48 of the terminal block 42 is inclined to one side in the left-right direction. The other side of the lower end of the terminal block 42 is lower than the one side, and the terminal block 42 is inclined. The cable 46 inserted from the insertion port 47 is wired obliquely so as to approach from the one side to the other side along the wiring guide portion 45.

  The cable 46 is connected by removing the front panel 21 and the right cover 23 with the cabinet 3 attached to the wall. When the cable 46 is inserted into the electrical box 10 and connected to the connector of the terminal block 42, the lower end of the terminal block 42 is inclined to one side, in other words, the connector hole arrangement surface 48 of the terminal block 42 has the insertion port 47. Therefore, the position of the connector is easier to see when looking up, and the workability is improved as compared with the state where the terminal block 42 is horizontal. In particular, when the cable 46 is a VVF cable, it is difficult to bend in the width direction. Since the terminal block 42 is inclined to one side, the angle at which the cable 46 is bent in the width direction can be reduced as compared with the case where the terminal block 42 is horizontal without being inclined. Therefore, even if the terminal block 42 and the insertion port 47 are displaced in the left-right direction, the cable 46 can be guided to the connector by simply inserting the cable 46 almost straight from the insertion port 47, and workability is improved.

  The control board 41 is disposed so as to be inclined in the left-right direction in accordance with the inclination of the terminal block 42. The control board 41 is inclined in the electrical box 10 so that the upper part of the control board 41 is closer to the other side than the lower part. That is, the control board 41 and the terminal block 42 are parallel, and the control board 41 and the terminal block 42 are arranged in the left-right direction when viewed from the front. The control board 41 and the terminal block 42 are displaced in the front-rear direction, but do not overlap each other. Therefore, when the rear control board 41 is taken out from the electrical box 10, the terminal block 42 does not get in the way, and the control board 41 can be easily pulled out to the front side. Then, when the control board 41 is inclined, the upper part is wider than the lower part in the space surrounded by the control board 41 and the lid 44. Therefore, a tall electrical component 40 such as a transformer, a capacitor, and a noise filter is disposed on the upper portion of the control board 41, and a short electrical component 40 is disposed on the lower portion. A transformer, a capacitor, a noise filter, and the like are electrical components 40 with high heat generation. By arranging these at the upper part, the generated heat is accumulated at the upper part of the electrical box 10, and the influence of the heat on the lower electrical part 40 such as a CPU can be reduced.

  By the way, a part of the refrigerant pipe 12 of the heat exchanger 1 protrudes from one side in the left-right direction and is drawn out to the rear side for connection to the outdoor unit. The refrigerant pipe 12 in the accommodation space 8 faces the fan motor 13 and also faces the electrical box 10.

  As shown in FIGS. 9 and 10, a partition member 50 that partitions the refrigerant pipe 12 and the fan motor 13 and partitions the refrigerant pipe 12 and the electrical box 10 is provided. The partition member 50 supports the heat exchanger 1 and is attached to the cabinet 3. A partition member 50 is attached to one side of the heat exchanger 1, and the partition member 50 is attached to the back plate 20.

  The partition member 50 includes a side plate 51 positioned between the refrigerant pipe 12 and the fan motor 13 and a dew cover 52 positioned between the refrigerant pipe 12 and the electrical box 10. Are integrally formed. The side plate 51 is screwed to one side of the heat exchanger 1. The dew cover 52 is screwed to the back plate 20.

  As shown in FIG. 11, the upper surface 53 of the side plate 51 is located below the refrigerant pipe 12 and covers the top of the fan motor 13. The upper surface 53 is formed on a curved surface along the outer periphery of the fan motor 13, and extends to the front side and the rear side from the fan motor 13. A drain pan 54 is provided below the front side of the heat exchanger 1, and the front end of the upper surface reaches the drain pan 54. A drain pan 55 is also provided below the rear side of the heat exchanger 1, and the rear end of the upper surface reaches the rear drain pan 55. The front drain pan 54 is formed integrally with the louver unit. A covering material 56 is attached to the outer periphery of the fan motor 13 for vibration isolation and heat insulation. One end of the fan motor 13 protrudes from the coating material 56 to one side. The upper surface 53 of the side plate 51 is disposed so as to cover the covering material 56.

  The dew cover 52 is provided on one side of the side plate 51 and is formed as a wall that rises upward from one end of the upper surface 53 of the side plate 51. The upper end of the dew cover 52 is positioned above the uppermost refrigerant pipe 12 of the refrigerant pipe 12, as shown in FIG. Therefore, the dew cover 52 shields the other side of the electrical box 10 from the refrigerant pipe 12.

  When the air conditioner is operated, dew is generated along with heat exchange and adheres to the refrigerant pipe 12. The dew may be scattered by the wind of the fan 2. Further, the members around the refrigerant pipe 12 come into contact with the cold air to cause dew condensation. However, since the electrical box 10 is shielded from the refrigerant pipe 12 by the dew cover 52 of the partition member 50, dew does not adhere to the electrical box 10. Further, the fan motor 13 is also shielded from the refrigerant pipe 12 by the side plate 51, and dew does not adhere to the fan motor 13. The dew adhering to the dew cover 52 flows down and reaches the upper surface 53 of the side plate 51, and the dew flows along the upper surface 53 to the front side or the rear side and flows into the front and rear drain pans 54 and 55. In this way, dew generated in the vicinity of the refrigerant pipe 12 is collected in the drain pan 54. The front and rear drain pans 54 and 55 communicate with each other so that water flows from the rear drain pan 55 to the front drain pan.

  Further, as shown in FIG. 12, the partition member 50 functions as a motor presser for fixing the fan motor 13 to the cabinet 3. On one side of the side plate 51, a pressing portion 57 that contacts the fan motor 13 is provided. The pressing portion 57 is formed so as to protrude downward from one end portion of the upper surface 53. The lower surface of the pressing portion 57 is formed in an arc shape along the outer periphery of the fan motor 13. The presser portion 57 directly contacts the outer periphery of the front upper portion of the outer periphery of the fan motor 13.

  A motor pressing member 58 and a lock member 59 for fixing the fan motor 13 together with the pressing portion 57 are provided. The motor pressing member 58 is formed so as to protrude forward from the back plate 20, and is positioned below the rear side of the dew cover 52. The motor pressing member 58 directly contacts the entire outer periphery of the rear side of the outer periphery of the fan motor 13.

  The lock member 59 is located below the front side of the dew cover 52 and directly contacts the outer periphery of the lower portion of the front side of the outer periphery of the fan motor 13. As shown in FIG. 13, the lock member 59 is rotatably supported by a rib provided on the back plate 20. As shown in FIG. 13A, when the claw provided on the lock member 59 is hooked on the rib, the lock member 59 contacts the fan motor 13 and the fan motor 13 is held. As shown in FIG. 13 (b), when the claw is removed from the rib, the lock member 59 can be rotated and separated from the fan motor 13. When the lock member 59 is separated from the fan motor 13, the fan 2 can be removed from the cabinet 3 as shown in FIG. When the fan 2 is attached or detached, the louver unit screwed to the partition member 50 is removed in advance.

  As described above, the single partition member 50 can realize a plurality of functions such as dew receiving, dew scatter prevention, dew collection, and motor presser. Therefore, the number of parts can be reduced and space can be saved. Further, the heat exchanger 1 can be attached to the cabinet 3 with the partition member 50 attached to the heat exchanger 1 in advance, and the side plate 51 and the dew cover 52 are separately attached to the heat exchanger 1 attached to the cabinet 3. Compared to the case of mounting, the mounting work is simplified and the working time can be shortened.

  In the indoor unit, the drain pan 54 is provided in the left-right direction on the front side of the cabinet 3, and the water accumulated in the drain pan 54 is discharged to the outside by the drain hose 60. As shown in FIG. 15, the drain ports 61 and 62 are formed on both sides of the drain pan 54 in the left-right direction. A drain hose 60 is connected to one of the drain ports 61 and 62, and the drain hose 60 is guided to the outside through the rear side inside the cabinet 3.

  By the way, on one side in the left-right direction of the cabinet 3, the refrigerant pipe 12 and the fan motor 13 are arranged and occupy the space of the accommodation space 8. On the other hand, there is no large protrusion like the fan motor 13 on the other side.

  As shown in FIG. 16, the drain port 61 on the other side in the left-right direction is positioned below the rotating shaft 63 of the fan 2 at the approximate center in the front-rear direction of the cabinet 3. Note that, on the other side of the fan 2, the rotating shaft 63 is rotatably supported on the back plate 20. As shown in FIG. 11, the drain port 62 on one side is located at a level substantially the same as the lower end of the fan motor 13 on the obliquely lower front side of the fan motor 13, that is, on the front side of the fan motor 13. Each drain port 61, 62 protrudes obliquely downward toward the rear side.

  As described above, the drain port 61 on the other side is located on the rear side of the drain port 62 on the one side, and is located below. Therefore, when the cabinet 3 is viewed from the rear side, the drain port 61 on the other side can be directly viewed as shown in FIG. The drain port 62 on one side is blocked by the fan motor 13 and the drain port 62 is difficult to see.

  Depending on the installation location of the indoor unit, one of the left and right drain ports 61 and 62 is used. When using the drain port 62 on one side, a joint 65 is used to connect the drain hose 60. When the drain port 61 on the other side is used, the joint 65 is not used, and the drain hose 60 is directly connected to the drain port 61. Note that the drain port 62 that is not used is covered with a cap.

  The joint 65 is interposed between the drain port 62 and the drain hose 60. The inlet 66 of the joint 65 is fitted into the outer periphery of the drain port 62 and is screwed to the drain pan 54. The drain hose 60 is fitted into the outlet 67 of the joint 65, and the drain hose 60 is screwed to the joint 65.

  As shown in FIG. 17, the joint 65 has a shape in which the outlet side of the straight pipe is slightly bent. The outlet 67 of the joint 65 faces upward from the straight pipe portion. Therefore, when the joint 65 is connected to the drain port 62, the inlet side of the joint 65 faces obliquely downward. The outlet 67 of the joint 65 also faces obliquely downward, but the inclination is gentle. That is, the inclination angle of the inlet 66 of the joint 65 is the same as the inclination angle of the drain port 62 and is steeper than the inclination angle of the outlet 67. Thereby, since drain water flows vigorously at the beginning, drainage is improved.

  The joint 65 connected to the drain port 62 is in a state along the outer periphery of the fan motor 13, wraps around below the fan motor 13 and reaches the rear side of the fan motor 13. When the cabinet 3 is viewed from the rear side, the outlet 67 of the joint 65 can be directly seen. Further, the inclination angle of the outlet 67 of the joint 65 becomes gentle so that the outlet 67 is easy to see. Therefore, the drain hose 60 can be easily connected to the joint 65. Since the inclination angle of the inlet 66 of the joint 65 is steep, the water accumulated in the drain pan 54 tends to flow toward the outlet 67.

  Here, even if the position of the fan motor 13 in the cabinet 3 is lowered, the drainage can be performed from the drain pan 54 through the lower portion of the fan motor 13 by using the joint 65. Therefore, the position of the fan motor 13 can be lowered, the height of the cabinet 3 can be lowered, and the cabinet 3 can be made compact. In addition, the inclination of the joint 65 may be changed according to the position of the drain port 62 on one side, the position of the drain pan 54 can be freely set, and the cabinet 3 can be made more compact.

  In addition, this invention is not limited to the said embodiment, Of course, many corrections and changes can be added to the said embodiment within the scope of the present invention. The joint is a curved tube so that the curvature on the front side of the joint is smaller than the curvature on the rear side. The inclination angle of the inlet becomes steeper than the inclination angle of the outlet, and the joint is arranged so as to wrap around the outer periphery of the fan motor.

DESCRIPTION OF SYMBOLS 1 Heat exchanger 2 Fan 3 Cabinet 4 Suction port 5 Air outlet 7 Filter 8 Accommodating space 10 Electrical box 12 Refrigerant piping 13 Fan motor 40 Electrical component 41 Control board 42 Terminal block 43 Base member 45 Wiring guide 46 Cable 47 Insert 50 Partition member 51 Side plate 52 Dew cover 53 Upper surface 54 Drain pan 57 Press part 60 Drain hose 61 Drain port 62 Drain port 65 Joint 66 Inlet 67 Outlet

Claims (4)

The cabinet is equipped with a fan driven by a fan motor and a heat exchanger arranged so as to surround the fan. A part of the refrigerant pipe projects from one side of the heat exchanger in the left-right direction, A fan motor is arranged on one side, and an electrical box with a control board with electrical components mounted is placed in the storage space formed on one side of the cabinet in the left-right direction. A cable is connected to the upper part of the electrical box. The terminal block is tilted so that one side in the left-right direction is higher than the other side, and the cable inserted from the lower part to the upper part of the electrical box is from one side to the other side. routed obliquely as going closer, the control board is disposed on one side of the terminal block at the top of the electrical component box, so that the top of the control board is due to the other side of the lower control board, the end An indoor unit of an air conditioner characterized in that it is arranged to be inclined to match the inclination of the platform. The other side in the lateral direction of the electrical component box is opposed to the heat exchanger and the fan motor, one side faces the side surface of the cabinet, the upper portion of the electrical component box is formed so as widely made in the lateral direction than the lower, electrostatic instrumentation components an indoor unit of an air conditioner according to claim 1, wherein the kite is mounted on one side of the control board. The indoor unit of an air conditioner according to claim 1 or 2 , wherein a cable insertion port is formed in a lower part of the electrical box, and the insertion port is located on one side of the terminal block. The indoor unit for an air conditioner according to any one of claims 1 to 3, wherein an electrical component having high exothermicity is disposed on an upper portion of the control board.

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