JP2012149781A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an indoor unit of an air conditioner provided with a communication means of simple constitution, that can receive efficiently a radio wave from a radio remote controller transmitted multi-directionally, without being affected by a structure in the indoor unit, and easy in attaching work.SOLUTION: An electrical equipment box is arranged in at least one side of right and left sides in a heat exchanger, in an inside of an indoor unit body, in the indoor unit provided with the radio remote controller, and a radio module 54 communicated with the radio remote controller is arranged in an under side of the electrical equipment box. The radio module 54 and a display part for displaying a state of the air conditioner are integrated as a display/communication unit 50. The radio module 54 is arranged on a back face side of a display substrate inside the display/communication unit 50.

Description

  The present invention relates to an air conditioner, and more particularly to an arrangement on the indoor unit side of wireless communication means (wireless module) that communicates with a wireless remote controller using radio waves.

Conventionally, an air conditioner that communicates with a remote controller via radio waves is disclosed in FIG.
9A is a diagram in which the indoor unit is installed on the left side of the room (hereinafter, left side installation), FIG. 9B is a diagram in which the indoor unit is installed on the right side of the room (hereinafter, right side installation), and FIG. 9C. Is a wireless remote controller 85.

  As shown in FIG. 9A, an electronic control device 82, a communication unit 83, and a communication unit on the left side of the indoor unit 81 are provided inside the indoor unit 81 of the air conditioner installed near the left wall 86 in the room. A fixing means 84 a, a communication means fixing means 84 b on the right side of the indoor unit, and an indoor heat exchanger 91 are provided, and the electronic control device 82 and the communication means 83 are connected by a connection line 90. The exchange of signals between the electronic control unit 82 and the communication unit 83 is performed via the interface unit 82a.

  Then, the control signal transmitted from the wireless remote controller 85 is received by the communication means 83, and the signal is transmitted to the interface means 82a in the electronic control device 82 through the connection line 90, and the interface means 82a shows in the electronic control device 82. A signal is transmitted to the control board that does not, and is reflected in the operating state of the air conditioner.

  As shown in FIG. 9A, when the indoor unit 81 is installed on the left side and the communication means 83 is attached to the fixing means 84a, the communication means 83 is an indoor unit such as the electronic control unit 82 or the heat exchanger 91. The communication means 83 may be remarkably deteriorated by being sandwiched between the wall 86 made of the above-described component and reinforced concrete, so that the communication means 83 is moved and fixed to the fixing means 84b on the side opposite to the wall 86, and the communication means By avoiding the state where 83 is sandwiched between the wall 86 and the indoor unit component such as the heat exchanger 91, the left side installation can be realized without reducing the reliability in communication with the wireless remote controller 85.

  Further, as shown in FIG. 9B, when the indoor unit 81 is installed on the right side, the communication means 83 is fixed to the fixing means 84a opposite to the wall 87 made of reinforced concrete, and the communication means 83 is connected to the wall. The right side installation is realized without deteriorating the communication reliability with the wireless remote controller 85 by avoiding the state sandwiched between the indoor unit components such as 87 and the heat exchanger 91 (see, for example, Patent Document 1). .)

  Because the wireless remote controller using radio waves communicates with the indoor unit in this way, it is affected by metal parts (heat exchanger, motor, indoor unit mounting plate) mounted on the indoor unit, etc. In some cases, radio waves did not reach the indoor unit. In the method of Patent Document 1, the left and right mounting positions of the communication means (wireless unit) are selected according to the mounting position of the indoor unit to improve communication with the wireless remote controller.

On the other hand, compared to infrared remote control, wireless remote control has not only the advantage of good operability due to the wide directivity of transmitted radio waves, but also strong against obstacles such as walls and furniture, and any position in the house The air conditioner can be operated even from the front.
For example, the wireless remote control has moved away from the indoor unit, such as controlling the air conditioner in the living room from the kitchen that is out of sight with the partition wall, controlling the air conditioner in the living room from the bedroom when getting up, and controlling the air conditioner in the child room from the kitchen on the first floor. A major feature of an air conditioner equipped with a wireless remote control is that it is located and can be controlled from outside the line of sight. On the other hand, unlike a wooden wall, a wall made of reinforced concrete used in a condominium or the like is expected to significantly attenuate radio waves, and there is a possibility that comfortable operation of an air conditioner cannot be expected.

  However, in the configuration of Patent Document 1, it is effective when the indoor unit and the wireless remote controller are in the same room, but when trying to communicate with the indoor unit using the wireless remote controller from the adjacent room or the back room, the indoor unit The radio wave from the side opposite to the side on which the communication means is mounted is further attenuated due to the metal heat exchanger or fan motor in addition to attenuation by the wall, and the communication quality deteriorates. Even if communication means are arranged on either the left or right side of the indoor unit, there is a metal mounting plate that fixes the indoor unit to the wall behind the indoor unit, so that the radio waves from the back of the indoor unit are also attenuated. As a result, communication quality deteriorates.

  As described above, the configuration of Patent Document 1 has a problem in that the operation control from the out-of-sight, which is a major feature of an air conditioner equipped with a wireless remote controller, is significantly restricted, and the features of the wireless remote controller cannot be fully utilized. In addition, there is a problem in that the cost of the air conditioner increases due to the configuration in which the communication means is selected and installed on the left and right when the air conditioner is installed, and the installation work takes time. In recent years, the demand for wireless devices has increased, and the radio frequency assigned to the devices has increased, and the problems described above have become more prominent due to the straightness of radio waves.

On the other hand, in an air conditioner equipped with a wireless remote controller, as described above, there are restrictions on the arrangement of communication means on the indoor unit side, and the communication means alone is often arranged at an optimum position for communication.
For this reason, it is necessary to attach a communication means for a wireless remote controller arranged alone, or to use a dedicated line such as a power supply line or a control line, and there is a problem that the structure and wiring are complicated and the assembly is troublesome .

JP 2004-271153 A (page 3, FIG. 1)

  The present invention solves the above-described problems, and can efficiently receive radio waves from a wireless remote controller transmitted from multiple directions without being affected by the structure in the indoor unit, and has a simple configuration and easy installation work. An object of the present invention is to provide an indoor unit of an air conditioner equipped with a simple communication means.

In order to solve the above-mentioned problems, the present invention relates to an indoor unit body in which a heat exchanger is housed in a housing having a suction port and a blower outlet at a lower portion of the front surface, and the indoor unit body. In an air conditioner equipped with a wireless remote control that performs air conditioning operation instructions using radio waves,
Inside the indoor unit main body, an electrical component box that stores electronic equipment that controls the indoor unit is disposed on at least one side of the heat exchanger,
The wireless module for communicating with the wireless remote controller is disposed below the electrical component box and at a position lower than the lower end of the heat exchanger,
The display unit for displaying the state of the air conditioner and the wireless module are integrated as a display / communication unit.

  In the display / communication unit according to a second aspect of the present invention, the display unit is arranged on the front side of the indoor unit main body, on the rear side of the display unit, and from the center of the display unit to the outer periphery. The wireless module is arranged at a position distant from the direction.

By using the above means, according to the air conditioner of the present invention,
The invention according to claim 1 is the heat exchanger and the electrical component by disposing the wireless module below the electrical component box arranged side by side with the heat exchanger and at a position lower than the lower end of the heat exchanger. It can reduce the shielding of radio waves from the wireless remote control by the box and can receive radio waves from other than the upper direction of the indoor unit.
In addition, since the display unit and the wireless module are integrated, the number of units and modules is reduced and the mounting operation is facilitated as compared with the case where each unit is configured independently.

  In the invention according to claim 2, since the wireless module is arranged away from the display unit, it is possible to reduce shielding of radio waves from the wireless remote controller due to being blocked by the display unit.

It is a perspective view which shows the Example of the indoor unit of the air conditioner by this invention. It is a disassembled perspective view which shows the structure of the indoor unit by this invention. It is explanatory drawing which shows the cross-section of the indoor unit by this invention. It is a perspective view which shows the main structures of the indoor unit by this invention. It is a perspective view which shows the display and communication unit mounted in the indoor unit by this invention. It is a disassembled perspective view which shows the structure of the display and communication unit by this invention. It is explanatory drawing which shows the example of installation of the indoor unit by this invention. It is a principal part enlarged view which shows the display related structure of the indoor unit by this invention. It is explanatory drawing which shows the conventional air conditioner.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail as examples based on the attached drawings.

FIG. 1 is a perspective view showing an embodiment of an indoor unit 2 of an air conditioner according to the present invention.
The indoor unit 2 includes a front panel 11, a grill 12 that supports the front panel 11, a right side cover 14 that is disposed on the right of the grill 12, and a left side cover 15 that is disposed on the left of the grill 12. The upper surface cover 13 is provided above the right side cover 14 and the left side cover 15.

  The upper surface cover 13 is provided with holes partitioned by a plurality of lattices, and this is an upper suction port 35a for taking in air. Similarly, a plurality of holes (not shown) are arranged in the grill 12 to form a front suction port 35b, which together constitute the suction port 35. When the indoor unit 2 is operated, the front panel 11 is rotated forward as will be described later, and air is also taken in from the grill 12 side. A display unit 16 is provided below the right side of the front surface of the grill 12 to display an operation state with light from a plurality of light emitting diodes that are lit through a translucent sheet. On the other hand, the indoor unit 2 receives radio waves from the wireless remote controller 4 and performs air conditioning operation.

FIG. 2 is an exploded perspective view of the indoor unit 2 and a perspective view showing a metal mounting plate 60 for installing the indoor unit 2 on a wall. The indoor unit 2 includes a metal heat exchanger 23, a blower fan 22, a blower fan motor 24 that drives the blower fan 22, and a wind direction disposed below the blower fan motor 24 on a resin casing 21. The indoor unit main part 20 including the plate drive unit 28, the front substrate module 39 fixed to the lower front of the casing 21, and the grill 12 including the front panel 11 disposed on the front of the indoor unit main part 20 An electrical component box 40 fixed to the right side surface of the main unit 20 of the indoor unit, and a display / communication unit 50 disposed below the front surface of the electrical component box 40 and fixed to the front right side surface of the wind direction plate drive unit 28. The resin right side cover 14 covering the electrical component box 40 from the right side, the resin left side cover 15 covering the left side surface of the indoor unit main part 20, and the resin covering the upper surface of the indoor unit main part 20 And a top cover 13.
In addition, the heat exchanger 23 is shown by the figure cut in two places using a cut line, and makes the inside of the heat exchanger 23 easy to see.

The front substrate module 39 fixes various substrates inside and is provided with a human detection sensor 39a on the front surface, and is covered with a substantially rod-shaped resin case that is long on the left and right.
Further, a front drain pan portion 27 a that catches dew generated in the heat exchanger 23 is provided on the front side of the casing 21, and a similar rear drain pan portion is also provided behind the casing 21, although not shown.
Further, a right heat exchanger holder 25 for fixing the indoor unit 2 to a mounting plate 60 fixed to a wall (not shown) is provided on the right side above the rear portion of the heat exchanger 23. Similarly, a left heat source is provided on the left side. An exchanger holder 26 is provided.

  In the electrical component box 40, electronic devices such as a control board (not shown) and a power supply unit that control the indoor unit 2 are stored inside a resin case, and a shield plate 41 is disposed on the surface of the case except the front. This is intended to shield radio waves (unwanted radiation) generated from an internal control board or power supply, and to prevent the spread of fire at the time of ignition due to a failure of an electronic component. Therefore, the configuration is such that external radio waves are also blocked. Even when the shield plate 41 is not used, the external radio waves are similarly blocked by the wiring pattern of the internal control board.

The display / communication unit 50 is covered with a resin case, and has a display function using a light emitting diode and a communication function for communicating with the wireless remote controller 4.
The wind direction plate drive unit 28 includes a left and right wind direction plate drive motor 28b and a vertical wind direction plate drive motor 28a that rotate a left and right wind direction plate and a vertical wind direction plate (not shown).

  The mounting plate 60 is formed by pressing a metal plate. A right heat exchanger mounting hook 61 is formed on the upper right side, and a left heat exchanger mounting hook 62 is formed on the left side. The indoor unit 2 is suspended and fixed to the mounting plate 60 by being hooked on the right heat exchanger holder 25 and the left heat exchanger holder 26 of the unit 20 respectively.

  Further, there are arc-shaped notches on the left and right sides of the mounting plate 60, and a refrigerant pipe (not shown) is drawn out from either one side and connected to the outdoor unit. The right side is a notch 63 for right piping, and the left side is a notch 64 for left piping. Therefore, when the refrigerant pipe is pulled out from the left pipe cutout 64, there is no metal part made of a copper pipe or the like on the right pipe cutout 63 side.

  FIG. 3 is an explanatory diagram showing a cross-sectional structure of the indoor unit according to the present invention, and shows a cross section at substantially the left and right of the indoor unit 2 in FIG.

  As shown in FIG. 3, the air flow path connecting the suction port 35 and the blower port 34 includes fins arranged in parallel and heat transfer tubes arranged so as to be orthogonal to the fins. An inverted V-shaped heat exchanger 23 composed of an exchanger 23a and a rear heat exchanger 23b, and a blower fan 22 that sends out the air heat-exchanged with the refrigerant in the heat exchanger 23 into the room from the outlet 34. And are provided.

  Further, a front drain pan portion 27a that receives condensed water dripping from the front heat exchanger 23a is provided below the front heat exchanger 23a, and below the rear heat exchanger 23b, the same rear heat exchanger is provided. A rear drain pan portion 27b for receiving condensed water dripping from 23b is provided. Further, an air filter 30 is mounted on the inner surface of the upper cover 13 and the grill 12 connected to the upper cover 13, and dust in the air is removed by the air filter 30. A front substrate module 39 is fixed in front of the front drain pan portion 27a, and two refrigerant tubes 29 connected to the heat exchanger 23 are stored behind the casing 21.

  In addition, a plurality of left and right wind direction plates 32 that deflect the blown-out air blown in the left-right direction are provided in the blow-out passage that connects the blower fan 22 and the blow-out port 34, and the blow-out port 34 is pivotally supported rotatably. A vertical wind direction plate 31 is provided. The up-and-down wind direction plate 31 closes the air outlet 34 when the operation of the air conditioner is stopped. Further, a diffuser 33 is provided below the left and right wind direction plates 32. The diffuser 33 is rotated almost horizontally during the cooling operation and downward during the heating operation, so that an optimum wind direction can be obtained for each operation. .

  The front panel 11 is mounted on the grill 12, and when the air conditioner is in operation, the front panel 11 slides upward to the position indicated by the front panel 11 ′, and the upper end rotates forward (outside). It is supposed to open. By opening the front panel 11, indoor air can be sucked not only from the top cover 13 side but also from the grill 12 side, thereby ensuring a sufficient amount of air suction and improving air conditioning capacity. It is like that. Further, when the air conditioner is stopped, the front panel 11 is closed and slides downward to prevent dust, dust, or foreign matter from entering the suction port 35 on the grill 12 side, and is formed on the grill 12. In addition, many piers are hidden from the user so as to enhance the beauty of the body.

  On the other hand, the electrical component box 40 indicated by the dotted line is arranged on the right side of the heat exchanger 23, and the display / communication unit 50 is located on the front side below the electrical component box 40 (in FIG. 3). (Left direction) The wireless module 54 in the display / communication unit 50 is disposed below the lower end of the heat exchanger 23, particularly the front heat exchanger 23a, which is a metal that shields radio waves. Further, the wireless module 54 is below the dew receiving surface of the front drain pan portion 27a (the bottom surface of the inner surface of the front drain pan portion 27a) in order to avoid shielding radio waves by the condensed water staying in the front drain pan portion 27a. Has been placed. Needless to say, the wireless module 54 is disposed below the lower end of the rear heat exchanger 23b and the rear drain pan 27b and the dew receiving surface.

  FIG. 4 is a perspective view showing the main structure of the indoor unit 2 according to the present invention. An electrical component box 40 having a shield plate 41 is fixed to the right side surface of the metal heat exchanger 23, and the side surface of the wind direction plate drive unit 28 is arranged so that the display / communication unit 50 faces obliquely downward at the lower front side thereof. It is fixed to. In addition, a front substrate module 39 is disposed at the front lower side of the heat exchanger 23. As described above, the wind direction plate drive unit 28 including the left and right wind direction plate drive motor 28b and the upper and lower wind direction plate drive motor 28a is disposed below the blower fan motor 24 (not shown). In the lower part, no metal parts other than the display / communication unit 50 are arranged.

  Accordingly, the range indicated by the dotted line in FIG. 4, that is, the radio wave shielding surface A represented on the front side of the electrical component box 40 and the heat exchanger 23, and the right side of the electrical component box 40 and the heat exchanger 23. The area surrounded by the shielding surface B of the radio wave that is present is that there is some metal or condensed water accumulated in the drain pan portion, and the radio wave from the wireless remote controller 4 may be blocked before reaching the display / communication unit 50 There is.

  However, in general, the indoor unit 2 is installed on a wall near the ceiling, and the radio remote controller 4 is operated by the user's hand, so that radio waves from the radio remote controller 4 reach diagonally upward from below. By arranging the display / communication unit 50 below the electrical component box 40, radio waves from below the indoor unit 2 can be received with high sensitivity in almost all directions.

  In addition, as will be described later, the display function and the communication function are combined into one unit, and the display / communication unit 50 is arranged in front of the electrical component box 40, so that the unit having the two functions is compactly arranged. can do. Furthermore, since an ion generator (not shown) is arranged on the opposite side of the display / communication unit 50 (on the left side when viewed from the front of the indoor unit 2), the radio module 54 that is sensitive to static electricity is kept away from the ion generator. Protect with.

  As described above, by arranging the wireless module 54 below the electrical component box 40 disposed side by side with the heat exchanger 23, the radio wave from the wireless remote controller 4 by the heat exchanger 23 and the electrical component box 40 can be reduced. Shielding is reduced and radio waves from other than the upper direction of the indoor unit 2 can be received well.

  In addition, since the wireless module 54 is arranged at a position lower than the lower end of the front heat exchanger 23a, the influence of the radio wave shielding of the heat exchanger 23, which is a metal, is reduced, and the radio remote controller 4 can receive radio waves from a wide range. It can be received well.

  Further, since the wireless module 54 is disposed at a position lower than the dew receiving surface of the front drain pan portion 27a, the influence of the radio wave shielding of the condensed water accumulated in the front drain pan portion 27a is reduced, and a wireless remote controller from a wide range. 4 radio waves can be received well.

  FIG. 5 is a perspective view showing the display / communication unit 50 mounted on the indoor unit according to the present invention. 5A is a diagram viewed from a surface corresponding to the front surface of the indoor unit 2 (front surface of the display / communication unit 50), and FIG. 5B is a surface corresponding to the rear surface of the indoor unit 2 (display / communication). It is the figure seen from the back surface of the unit 50).

  As shown in FIG. 5A, the front surface of the display / communication unit 50 forms a case with a resin rear cover 51 and a front cover 52. Twenty-two LED windows 52b are provided below the front cover 52, and light from a light-emitting diode (not shown) is visible from the LED window 52b as will be described later.

  As shown in FIG. 5B, below the rear cover 51 of the display / communication unit 50, there are two fixing arms 51a for fixing the display / communication unit 50 to the right side surface of the wind direction plate drive unit 28. A fixed arm 51b is provided. Further, as described later, the rear cover 51 has a structure with a bulge for storing the wireless module as will be described later. Further, the rear cover 51 is partially cut off on the left side, and the connector 53a inside the display / communication unit 50 is exposed.

  FIG. 6 is an exploded perspective view showing the structure of the display / communication unit 50 according to the present invention. A display substrate 53 on which a wireless module 54 is mounted is stored in a case constituted by the rear cover 51 and the front cover 52. Twenty-two light emitting diodes 53b are mounted on the back surface of the display substrate 53 (the front side of the indoor unit 2). Each light emitting diode 53b is arranged at a position corresponding to the LED window 52b. The wireless module 54 is electrically connected to the display substrate 53 via the connector 53c and is mechanically fixed.

  A plurality of connectors 53a are mounted on the display substrate 53, and various signals and power sources are connected to a control substrate in the electrical component box 40 through wires. The fixing arm 51a is provided with a fixing hole 51d, and the fixing arm 51b is provided with a fixing hole 51c. Further, locking holes 51e are provided on the left and right sides of the rear cover 51, and locking claws 52a corresponding to these locking holes 51e are provided on the left and right sides of the front cover 52, respectively. Each cover is fixed by engaging the locking claw 52a.

  FIG. 8 is an enlarged view of a main part showing the structure of the display unit 16 of the indoor unit according to the present invention. FIG. 8A is an explanatory view of the right side cover 14 of the indoor unit 2 as viewed from the front, and FIG. These are explanatory drawings of a cross section showing the relationship between the right side cover 14 of the indoor unit 2 and the display / communication unit 50.

As shown in FIG. 8A, the indoor unit according to the present invention displays various items on the inclined portion below the right side cover 14, and the light emission described in FIG. Twenty-two diodes 53b are used.
The breakdown of the number is 14 because the number represented by 7 segments is 2 digits, 1 on the right side represents “today”, 2 on the right side of 7 segments represents “0” and “Yen” There are five LEDs corresponding to “driving”, “timer”, “high power”, “clean”, “absent ECO” from the left in the horizontal direction, and a total of 22 light emitting diodes 53b It is arranged on the back surface of the display substrate 53, that is, on the front side of the indoor unit 2.

In the right side cover 14, a display plate 14b is disposed on an inclined portion below the front surface of the right side cover main body 14a. The display plate 14b is integrally formed with a display sheet 14d and a display plate body 14c made of a translucent resin material.
The contents of the various item displays described above are printed on the display sheet 14d, and the structure is such that the contents of the item display are recognized by viewing the light from the light emitting diode 53b through the transparent or printed color sheet. ing.

  As shown in FIG. 8B, the display / communication unit 50 is arranged on the back surface of the display plate 14b, and the front cover 52 of the display / communication unit 50 is in close contact with the back surface of the display plate 14b. . For this reason, the light emission from the light emitting diode 53b illuminates the display sheet 14d only in each range defined by the LED window 52b, and the individual item display is turned on. The light emitting diode 53b and the display plate 14b (display sheet 14d) serve as the display unit 16.

  In the display / communication unit 50, the wireless module 54 is arranged on the back side of the display unit 16 and at a position away from the center of the display unit 16 in the outer peripheral direction. The wireless module 54 is connected to the surface of the display substrate 53 via a connector 53c. In other words, the display board 53 is disposed at a distance of the height of the connector 53c. For this reason, the distance from the back surface of the display sheet 14d is the distance of the front cover 52 in the front-rear direction, the thickness of the display substrate 53, and the height of the connector 53c. By arranging the wireless module 54 at a distance from the display sheet 14d in this way, even if the display sheet 14d is mixed with decorative metal powder or metal foil, the influence on the radio waves transmitted and received by the wireless module 54 is achieved. Can be reduced. This is because the tuning frequency of the antenna is shifted due to the proximity of an antenna (not shown) built in the wireless module 54 and metal. This effect is particularly noticeable in products using a high frequency such as 2.4 GHz.

  The wireless module 54 is located away from the 22 light emitting diodes 53b, that is, above the display unit 16, that is, on the back side of the display unit 16 and from the center of the display unit 16 as described above. It arrange | positions in the position away in the outer peripheral direction. For this reason, the influence on the radio wave transmitted and received by the wireless module 54 can be reduced by moving away from the noise source generated by the drive signal for turning on / off the light emitting diode 53b.

  Furthermore, since the wireless module 54 has a structure completely covered by the rear cover 51 and the front cover 52 as described above, even if these covers are charged, the display / communication unit 50 including the wireless module 54 is used. All have the same potential. For this reason, current flowing between different potentials does not occur in the display / communication unit 50. Therefore, in the storage and installation work of the display / communication unit 50, it is possible to reduce the destruction of the wireless module 54 due to static electricity charged to the worker.

  In addition, as shown in FIG. 6, a plurality of connectors 53 a are mounted on the display substrate 53. A power source and various input / output signals necessary for controlling the wireless module 54 are connected to the display substrate 53 via the connector 53c. Further, these power sources and various input / output signals are various signals and power sources necessary for the display substrate 53. And connected to a control board or the like in the electrical component box 40 through the connector 53a.

  By the way, the indoor unit 2 is generally mounted above the room. For this reason, the display unit on which the operator confirms the operation of the indoor unit 2 is disposed in front of the indoor unit 2, particularly below the electrical component box 40 side, which is not easily affected by the structure of the air outlet 34. As described above, this location is also a suitable location for the wireless module 54.

  For this reason, by integrating the function of the display unit and the function of the wireless module as one unit, that is, the display / communication unit 50, the radio wave from the wireless remote controller 4 by the heat exchanger 23 and the electrical component box 40 can be transmitted. Shielding can be reduced, and the display unit and the wireless module become one part, and compared with the case where each is arranged as a single part, the power supply line and the signal line can be shared, so the installation work is It becomes easy.

  FIG. 7 is an explanatory view showing an installation example of the indoor unit 2 according to the present invention, and shows a state in which the second floor portion of a two-story house is viewed from obliquely above. The indoor unit 2 is installed above the wall A via a mounting plate 60. A wall C is vertically provided on the central back side of the wall A. A wall B is provided in front of the left side of the wall A, and the left side of the wall B is an adjacent room. And it is the left direction from the center back side of the wall A, and the back direction is the outer side of a house. Note that the right side of the wall A is cut off halfway, and the back of the right side of the wall A is a continuation of the room in which the indoor unit 2 is installed.

  The indoor unit 2 and the outdoor unit 3 installed on the back surface (outdoor) of the indoor unit 2 are connected by a refrigerant pipe 5 connected to a refrigerant pipe 29 provided in the indoor unit 2 to constitute the air conditioner 1. is doing. The refrigerant pipe 5 is piped outside the house through the left pipe cutout 64 of the mounting plate 60. On the other hand, the indoor unit 2 is blocked in front of the right pipe notch 63, but there are no metal parts below the electrical component box 40 as shown in FIG. There is only a communication unit 50.

  Therefore, when the wireless remote controller 4 is operated by moving it to various places in the house, it is stored in the metal parts or drain pan portion of the indoor unit that shields radio waves in the direction from the wireless remote controller 4 to the display / communication unit 50. Because there is no condensed water, not only radio waves from the wireless remote controller 4 in the same room as the indoor unit 2, but also remote radio waves from the first floor, remote radio waves from the adjacent room, and remote radio waves from the back of the indoor unit 2 are highly sensitive. Can be received.

  In addition, when a refrigerant pipe is pulled out from the notch 63 side for right piping, possibility that the back side of the indoor unit 2 is a house outdoor is high. For this reason, although the radio wave from the back of the indoor unit 2 is attenuated due to the refrigerant pipe, it is rare to control the indoor unit 2 from outside the house, which does not cause a substantial problem.

DESCRIPTION OF SYMBOLS 1 Air conditioner 2 Indoor unit 3 Outdoor unit 4 Wireless remote controller 5 Refrigerant pipe 11 Front panel 12 Grill 13 Upper surface cover 14 Right side cover 14a Right side cover main body 14b Display plate 14c Display plate main body 14d Display sheet 15 Left side cover 16 Display part DESCRIPTION OF SYMBOLS 20 Indoor unit main part 21 Casing 22 Blower fan 23 Heat exchanger 23a Front heat exchanger 23b Rear heat exchanger 24 Blower fan motor 25 Right heat exchanger holder 26 Left heat exchanger holder 27a Front drain pan part 27b Rear drain pan part 28 Wind direction plate drive unit 28a Vertical wind direction plate drive motor 28b Left and right wind direction plate drive motor 29 Refrigerant pipe 30 Air filter 31 Vertical wind direction plate 32 Left and right wind direction plate 33 Diffuser 34 Outlet 35 Suction port 35a Upper suction port 35b Front suction port 39 Front substrate Joule 39a Human detection sensor 40 Electrical component box 41 Shield plate 50 Display / communication unit 51 Rear cover 51a, 51b Fixed arm 51c, 51d Hole 51e Locking hole 52 Front cover 52a Locking claw 52b LED window 53 Display board 53a, 53c Connector 53b Light emitting diode 54 Wireless module 60 Mounting plate 61 Right heat exchanger mounting hook 62 Left heat exchanger mounting hook 63 Notch for right pipe 64 Notch for left pipe

Claims (2)

Air having an indoor unit body that houses a heat exchanger in a housing having a suction port and a blower outlet at the lower front, and a wireless remote controller that uses the radio waves to instruct an air conditioning operation to the indoor unit body In the harmony machine,
Inside the indoor unit main body, an electrical component box that stores electronic equipment that controls the indoor unit is disposed on at least one side of the heat exchanger,
The wireless module for communicating with the wireless remote controller is disposed below the electrical component box and at a position lower than the lower end of the heat exchanger,
An air conditioner, wherein a display unit for displaying a state of the air conditioner and the wireless module are integrated as a display / communication unit.   In the display / communication unit, the display unit is disposed on the front side of the indoor unit main body, and the wireless module is disposed on the back side of the display unit and at a position away from the center of the display unit in the outer circumferential direction. It arrange | positions, The air conditioner of Claim 1 characterized by the above-mentioned.

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