JP2014163558A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure an appropriate size of an auxiliary casing and place a refrigerant piping outside a side panel when room temperature air is blown out using the auxiliary casing.SOLUTION: In both sides of a heat exchanger, a first side panel 53a and a second side panel 53b are attached to a frame. The first side panel 53a and the second side panel 53b each have a wall body fixed to the frame in each side of the heat exchanger. An auxiliary casing 35 is movably attached to the wall body. The auxiliary casing 35 is displaced forward relative to the heat exchanger to form space 109 from a wall face in installation.

Description

  The present invention relates to an air conditioner.

  The air conditioner blows out cold air or warm air heat-exchanged by the heat exchanger from the outlet of the indoor unit. In the air conditioner described in Patent Document 1, auxiliary air outlets are formed adjacent to both sides of the air outlet. The auxiliary outlet opens at the front of the housing. A dust collection filter is installed at the suction port. Even if the air resistance of the dust collecting filter is high, the centrifugal fan can suck a sufficient amount of air from the suction port. The airflow that has passed through the dust collection filter is blown out from the auxiliary air outlet.

JP 2010-164271 A JP 2000-29792 A

  For example, in Patent Document 1, a centrifugal fan is incorporated in a housing. The rotating shaft of the cross flow fan and the rotating shaft of the centrifugal fan are coaxially connected to each other. Therefore, the arrangement of the centrifugal fan is restricted. In addition, since the collision with other parts is considered in the housing, the size of the centrifugal fan is also restricted. In particular, if the refrigerant connection pipe is pulled out from the side panel of the housing, the centrifugal fan cannot be reduced in size. In the prior art, the idea of attaching an auxiliary housing to the outside of the side panel and circulating room temperature air according to the operation of the auxiliary housing is not found.

  According to some aspects of the present invention, air that can draw out refrigerant piping from the outside of the side panel while appropriately securing the size of the auxiliary housing when blowing air at room temperature using the auxiliary housing. A harmony machine can be provided.

  An embodiment of the present invention includes a heat exchanger, a frame coupled to the heat exchanger and disposed from one end to the other end of the heat exchanger, and at least one side of the heat exchanger attached to the frame. The auxiliary panel having a blower attached to the side panel, and the auxiliary casing are arranged in front so that a space is formed between the auxiliary panel and the wall surface at the time of installation. It is related with an air conditioner provided with refrigerant piping arranged in space and connected to the heat exchanger.

  In such an air conditioner, a cold or warm air stream is generated by the action of the heat exchanger. Air flow of room temperature air is blown out from the auxiliary air outlet. There is a temperature difference between the air flow of room temperature air blown out from the auxiliary air outlet and the air flow of cold air or warm air generated by the heat exchanger. Since the specific gravity of the air changes according to the temperature, the direction and movement of the air flow of the room temperature air can be controlled according to the difference in specific gravity. Cool air and warm air can be sent to a desired place indoors. Thus, the indoor temperature environment can be efficiently adjusted.

  When the air conditioner is installed on the wall surface, the auxiliary housing is displaced in a direction away from the wall surface. Even if the heat exchanger is installed close to the wall surface, the refrigerant pipe can pass through the back of the auxiliary housing and be drawn from one side of the air conditioner along the wall surface. In addition, since the auxiliary casing is disposed outside the side panel, a sufficient size can be ensured in the auxiliary casing while ensuring a space behind the auxiliary casing. The size of the auxiliary housing can contribute to an increase in airflow of room temperature air.

  The shorter the distance between the heat exchanger and the wall surface, the smaller the moment generated by the weight of the heat exchanger and acting on the wall surface. As a result, the rigidity of the installation structure can be suppressed as much as possible. In contrast, when the auxiliary housing is not displaced forward with respect to the heat exchanger, a sufficiently large space behind the auxiliary housing when the heat exchanger is installed close to the wall surface. Can not be secured. The refrigerant piping must be pulled out from the lower surface of the air conditioner. The appearance after installation will deteriorate. Still, if the refrigerant pipe is pulled out from one side of the air conditioner, the heat exchanger will be separated from the wall surface. The moment generated by the weight of the heat exchanger and acting on the wall surface increases.

  The side panel may include a wall body fixed to the frame, and continuously extend from the wall body to the back of the auxiliary housing to form an outer wall of the space. Thus, the space behind the auxiliary housing and the space behind the heat exchanger are continuous. The walls separating these can be omitted. The refrigerant pipe can be drawn out of the side panel. Complicating the drawing operation of the refrigerant pipe can be avoided.

  The air conditioner may include a cross flow fan disposed in association with the heat exchanger and a centrifugal fan accommodated in the auxiliary housing. At this time, the rotation axis of the centrifugal fan may be disposed in front of a vertical virtual plane including the rotation axis of the cross flow fan. When the rotation axis is shifted in this way, the displacement of the auxiliary housing can be easily realized. That is, a sufficient size can be secured for the centrifugal fan while ensuring a space behind. Therefore, the refrigerant pipe can surely pass behind the auxiliary housing and be drawn out from one side of the air conditioner along the wall surface.

  The air conditioner may further include a front panel that is attached to the frame and configures the appearance of the air conditioner. At this time, the front end of the auxiliary housing may be aligned with the surface of the front panel. Although the auxiliary housing is displaced forward relative to the heat exchanger, a good appearance can be ensured.

  In the air conditioner, the side panel may be attached to the frame on both sides of the heat exchanger. The refrigerant pipe can be drawn from either the left or right side. As a result, the degree of freedom in installing the air conditioner is expanded.

  As described above, according to the disclosed air conditioner, when the room temperature air is blown out using the auxiliary housing, the refrigerant pipe can be pulled out from the outside of the side panel while appropriately securing the size of the auxiliary housing. it can

It is a conceptual diagram which shows roughly the structure of the air conditioner which concerns on one Embodiment of this invention. It is a perspective view showing roughly the appearance of the indoor unit concerning one embodiment. It is a perspective view which shows the structure of a structure schematically. It is a vertical sectional view of the indoor unit schematically showing the configuration of the first blower fan. It is a perspective view which shows roughly the structure of a 1st side panel and a 2nd side panel. It is a disassembled perspective view of a fan unit. It is a perspective view of the ventilation path unit which shows a rack and a drive gear roughly. It is a perspective view which shows roughly the structure of the drive unit of a wind direction board. It is a disassembled perspective view which shows the main components of a main body roughly. It is a perspective view which shows the back of an indoor unit schematically. It is a perspective view of the 1st side panel observed from diagonally back. It is a top view which shows the inner side of a 1st side panel schematically. It is a top view which shows the inner side of a 2nd side panel schematically. It is a conceptual diagram which shows an example of an airflow at the time of air_conditionaing | cooling operation. It is a conceptual diagram which shows a specific example of an airflow at the time of heating operation.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 schematically shows a configuration of an air conditioner 11 according to an embodiment of the present invention. The air conditioner 11 includes an indoor unit 12 and an outdoor unit 13. The indoor unit 12 is installed in an indoor space in a building, for example. In addition, the indoor unit 12 may be installed in an environmental space corresponding to the indoor space. An indoor heat exchanger 14 is incorporated in the indoor unit 12. The outdoor unit 13 includes a compressor 15, an outdoor heat exchanger 16, an expansion valve 17, and a four-way valve 18. The indoor heat exchanger 14, the compressor 15, the outdoor heat exchanger 16, the expansion valve 17 and the four-way valve 18 form a refrigeration circuit 19.

  The refrigeration circuit 19 includes a first circulation path 21. The first circulation path 21 connects the first port 18a and the second port 18b of the four-way valve 18 to each other. A compressor 15 is provided in the first circulation path 21. The suction pipe 15a of the compressor 15 is connected to the first port 18a of the four-way valve 18 via a refrigerant pipe. The gas refrigerant is supplied to the suction pipe 15a of the compressor 15 from the first port 18a. The compressor 15 compresses the low-pressure gas refrigerant to a predetermined pressure. The discharge pipe 15b of the compressor 15 is connected to the second port 18b of the four-way valve 18 via a refrigerant pipe. Gas refrigerant is supplied from the discharge pipe 15 b of the compressor 15 to the second port 18 b of the four-way valve 18. The first circulation path 21 is formed by a refrigerant pipe such as a copper pipe.

  The refrigeration circuit 19 further includes a second circulation path 22. The second circulation path 22 connects the third port 18c and the fourth port 18d of the four-way valve 18 to each other. The outdoor heat exchanger 16, the expansion valve 17, and the indoor heat exchanger 14 are incorporated into the second circulation path 22 in order from the third port 18c side. The outdoor heat exchanger 16 realizes heat energy exchange between the refrigerant passing therethrough and ambient air. The indoor heat exchanger 14 realizes heat energy exchange between the refrigerant passing therethrough and ambient air. The second circulation path 22 may be formed by a refrigerant pipe such as a copper pipe.

  A blower fan 23 is incorporated in the outdoor unit 13. The blower fan 23 ventilates the outdoor heat exchanger 16. The blower fan 23 generates an air flow according to the rotation of the impeller, for example. The airflow passes through the outdoor heat exchanger 16. The flow rate of airflow passing through is adjusted according to the number of revolutions per minute of the impeller. In the outdoor heat exchanger 16, the amount of heat energy exchanged between the refrigerant and the air is adjusted according to the flow rate of the airflow.

  The indoor unit 12 includes a main unit 25 and a pair of fan units 26. The main body unit 25 incorporates the indoor heat exchanger 14 and the first blower fan 27. The first blower fan 27 ventilates the indoor heat exchanger 14. The 1st ventilation fan 27 produces | generates an airflow according to rotation of an impeller. Indoor air is sucked into the main unit 25 by the action of the first blower fan 27. The indoor air passes through the indoor heat exchanger 14 and exchanges heat with the refrigerant. The heat-exchanged cold air or warm air flow is blown out from the main unit 25. The flow rate of airflow passing through is adjusted according to the number of revolutions per minute of the impeller. In the indoor heat exchanger 14, the amount of heat energy exchanged between the refrigerant and the air can be adjusted according to the flow rate of the airflow. The fan unit 26 sucks room air and blows out the room air. In the fan unit 26, the room air is blown out at room temperature without heat exchange.

  When the cooling operation is performed in the refrigeration circuit 19, the four-way valve 18 connects the second port 18b and the third port 18c to each other and connects the first port 18a and the fourth port 18d to each other. Therefore, high-temperature and high-pressure refrigerant is supplied to the outdoor heat exchanger 16 from the discharge pipe 15 b of the compressor 15. The refrigerant flows through the outdoor heat exchanger 16, the expansion valve 17, and the indoor heat exchanger 14 in order. The outdoor heat exchanger 16 radiates heat from the refrigerant to the outside air. The refrigerant is decompressed to a low pressure by the expansion valve 17. The decompressed refrigerant absorbs heat from the surrounding air in the indoor heat exchanger 14. Cold air is generated. The cold air is caused to flow into the indoor space by the action of the first blower fan 27.

  When the heating operation is performed in the refrigeration circuit 19, the four-way valve 18 connects the second port 18b and the fourth port 18d to each other and connects the first port 18a and the third port 18c to each other. A high-temperature and high-pressure refrigerant is supplied from the compressor 15 to the indoor heat exchanger 14. The refrigerant flows through the indoor heat exchanger 14, the expansion valve 17, and the outdoor heat exchanger 16 in order. The indoor heat exchanger 14 radiates heat from the refrigerant to the surrounding air. Warm air is generated. Warm air is caused to flow into the indoor space by the action of the first blower fan 27. The refrigerant is decompressed to a low pressure by the expansion valve 17. The decompressed refrigerant absorbs heat from the surrounding air in the outdoor heat exchanger 16. Thereafter, the refrigerant returns to the compressor 15.

  FIG. 2 schematically shows the appearance of the indoor unit 12 according to an embodiment. The main unit 25 of the indoor unit 12 includes a structure 28. An outer panel 29 covers the structure 28. A first air outlet 31 is formed on the lower surface of the structure 28. The first air outlet 31 opens downward. The structure 28 can be fixed to a wall surface in the room, for example. The first air outlet 31 extends in a horizontal direction at the time of installation, and blows out cool air or warm air generated by the indoor heat exchanger 14.

  A pair of front and rear wind direction plates 32 a and 32 b are arranged at the first outlet 31. The up-and-down wind direction plates 32a and 32b can rotate about horizontal axis lines 33a and 33b, respectively. In the present embodiment, the rear ends of the up and down wind direction plates 32a and 32b serve as the rotation shaft, but the present invention is not limited to this. Depending on the rotation, the up and down wind direction plates 32 a and 32 b can open and close the first outlet 31.

  As shown in FIG. 3, a first suction port 34 is formed in the structure 28. The first suction port 34 opens at the front and top surfaces of the structure 28. The outer panel 29 can be covered with the first suction port 34 in front of the structure 28. The first suction port 34 introduces indoor air toward the indoor heat exchanger 14.

  The fan units 26 are individually attached to both sides of the first inlet 34 and the first outlet 31 extending in the horizontal direction. The fan unit 26 is disposed outside the outer wall surface of the structure 28. Each fan unit 26 is accommodated in an auxiliary housing, that is, a fan housing 35. The fan housing 35 is supported on the outer wall surface of the structure 28 so as to be movable with respect to the structure 28. Here, the fan housing 35 can rotate around a rotation axis that intersects the outer wall surface of the structure 28. In the present embodiment, the rotation axis of the fan housing 35 overlaps the horizontal axis 36. The horizontal axes 33a, 33b, and 36 extend in parallel to each other. The outer wall surfaces of the structures 28 extend in parallel to each other. Therefore, the outer wall surfaces provided at both ends of the structure 28 are orthogonal to the horizontal axes 33a, 33b, 36.

  A second suction port 37 is formed in the fan housing 35. The second suction port 37 takes in room air from the vertical direction of the outer wall surface of the structure 28. The second suction port 37 is covered with a suction port cover 38. The suction port cover 38 is attached to the fan housing 35. The outline of the suction port cover 38 is defined along the virtual cylindrical surface 39 inside the virtual cylindrical surface 39 coaxial with the horizontal axis 36. That is, the suction port cover 38 has a circular outline. A plurality of openings 41 are formed in the suction port cover 38. The opening 41 connects the space inside and outside the second suction port 37 to each other.

  A second air outlet 42 is formed in the fan housing 35. The second air outlet 42 blows out room air taken into the fan housing 35 from the second air inlet 37. The airflow blows out from the second outlet 42 in a direction along the outer wall surface. When the fan housing 35 rotates around the horizontal axis 36, the second outlet 42 can be displaced up and down in the direction of gravity. The direction of the airflow blown out from the second air outlet 42 can be changed. Here, the forward direction side is referred to as “downstream” and the reverse direction side is referred to as “upstream” in accordance with the direction of rotation of the fan housing 35 that lowers the second outlet 42 in the direction of gravity. A wind direction plate 43 (hereinafter referred to as “fan unit wind direction plate 43”) is attached to the second outlet 42. The fan unit wind direction plate 43 can deflect the direction of the airflow blown out from the second air outlet 42 in the horizontal direction. The total opening area of the two second outlets 42 is smaller than the opening area of the first outlet 31.

  The structure for changing the posture of the fan housing 35 is not limited to this. For example, a wind direction plate that changes the wind direction in the vertical direction is provided at the second air outlet 42, and the fan housing 35 can swing around an axis extending in the vertical direction on the back side of the fan housing 35 on the outer wall surface of the structure 28. The orientation of the second outlet 42 may be changed in the horizontal direction. In addition, a wind direction plate that changes the wind direction in the left-right direction may be provided at the second air outlet 42, and the fan housing 35 may be moved up and down by a guide rail provided on the outer wall surface of the structure 28.

  The structure 28 includes an auxiliary structure 44. The auxiliary structure 44 is formed on the outer wall surface around the fan housing 35. The auxiliary structure 44 protrudes outward from the fan housing 35 from the outer wall surface. The edge of the auxiliary structure 44 is partitioned along the suction port cover 38 outside the virtual cylindrical surface 39 described above.

  As shown in FIG. 4, the first blower fan 27 is rotatably supported on the structure 28. For example, a cross flow fan can be used as the first blower fan 27. The first blower fan 27 can rotate around a rotation axis 45 parallel to the horizontal axis 36. The rotation shaft 45 of the first blower fan 27 extends in the horizontal direction when installed. Thus, the first blower fan 27 is arranged in parallel with the first blower outlet 31. The indoor heat exchanger 14 is disposed around the first blower fan 27.

  A first blower fan drive source 46 is fixed to the structure 28. For example, an electric motor can be used as the first blower fan drive source 46. The drive shaft of the first blower fan drive source 46 rotates about its axis. The drive shaft can be disposed coaxially with the rotation shaft 45 of the first blower fan 27. The drive shaft of the first blower fan drive source 46 can be coupled to the rotary shaft of the first blower fan 27. Thus, the driving force of the first blower fan drive source 46 is transmitted to the first blower fan 27. The first blower fan drive source 46 drives the first blower fan 27. The airflow passes through the indoor heat exchanger 14 according to the rotation of the first blower fan 27. As a result, a cold or warm air stream is generated. Cold air or warm air is blown out from the first outlet 31.

  As shown in FIG. 5, the structure 28 includes a main body 51, a front panel 52, a first side panel 53a, and a second side panel 53b. A first air outlet 31 is formed in the main body 51. A first side panel 53 a and a second side panel 53 b are attached to the main body 51 on both sides of the first outlet 31. The first side panel 53 a and the second side panel 53 b constitute an outer shell of the structure 28. Since the 1st side panel 53a and the 2nd side panel 53b are comprised by the right-and-left symmetrical similar components, below, the code | symbol is unified and demonstrated about the same components. The first side panel 53 a and the second side panel 53 b each have a wall body 54. Each wall 54 is provided on both sides of the main body 51 so as to be parallel to each other. The outer wall surface 54 a of the wall body 54 corresponds to the outer wall surface of the structure 28. Here, the outer wall surface 54 a may be orthogonal to the horizontal axis 36. The wall body 54 is fixed to the first air outlet 31 on both sides of the first air outlet 31. The auxiliary structures 44 are integrated with the first side panel 53a and the second side panel 53b, respectively. Such a member can be formed based on integral molding from a hard resin material. Similarly, the second side panel 53b and the auxiliary structure 44 can constitute one member. In the present embodiment, the first side panel 53a and the auxiliary structure 44, the second side panel 53b, and the auxiliary structure 44 are constituted by one member, but they may be constituted by different members.

  Screws 55 are used to attach the first side panel 53a and the second side panel 53b to the structure 28. The screw 55 passes through the first side panel 53a and the second side panel 53b and is screwed into the main body 51. When the screw 55 is screwed, a virtual plane 56 is defined. The virtual plane 56 is formed so as to connect the first side panel 53a and the second side panel 53b to each other. The axis of the screw 55 is orthogonal to the virtual plane 56. The virtual plane 56 faces the front of the structure 28. Here, the virtual plane 56 is parallel to the horizontal axis 36 and parallel to the wall surface of the room when the indoor unit 12 is installed, and is positioned on the front side of the first side panel 53a and the second side panel 53b. To do. The virtual plane 56 extends in parallel to the rotation axis 45 of the first blower fan 27.

  The main body 51 has a screw boss 57. The first side panel 53 a and the second side panel 53 b have screw insertion pieces 58. The screw insertion piece 58 has, for example, a plate piece having a uniform plate thickness at least partially. The plate piece of the screw insertion piece 58 is overlaid on the boss 57. The screw 55 passes through the screw insertion piece 58 and is screwed into the boss 57.

  A first electrical component unit 61 and a second electrical component unit 62 are attached to the front surface of the main body 51. A first control board is accommodated in the first electrical component unit 61. A second control board is accommodated in the second electrical component unit 62. When the front panel 52 is fixed to the main body 51, the first electrical component unit 61 and the second electrical component unit 62 are covered with the front panel 52.

  As shown in FIG. 6, each fan unit 26 includes a first decorative housing 71a and a second decorative housing 71b. The fan casing 35 includes a first decorative casing 71a and a second decorative casing 71b. The 1st decorative housing 71a and the 2nd decorative housing 71b are mutually connected, and the 2nd blower outlet 42 is formed. A second suction port 37 is defined in the first decorative housing 71a. In the internal space defined by the first decorative casing 71a and the second decorative casing 71b, there is a blower path unit 72, a centrifugal fan 73 as a second blower fan, a mounting plate 74, a second blower fan drive source 75, and a protective member. 76 is accommodated.

  The fan unit 26 includes an air passage unit 72. The air duct unit 72 includes a first member 72a and a second member 72b. The first member 72a of the air duct unit 72 is coupled to the second decorative casing 71b. In this way, the air duct unit 72 is integrated with the fan housing 35. A cylindrical portion 77 is formed on the first member 72 a of the air duct unit 72. The cylindrical portion 77 forms a cylindrical surface 77a coaxial with the horizontal axis 36 on the inner surface. The air passage unit 72 forms an opening 78 that communicates with the second suction port 37 and an air passage 79 that extends to the second air outlet 42.

  The fan unit 26 includes a centrifugal fan 73. The centrifugal fan 73 is accommodated in the air duct unit 72. As the centrifugal fan 73, for example, a sirocco fan can be used. The rotational axis of the centrifugal fan 73 intersects the outer wall surface 54 a of the wall body 54. Here, the rotational axis of the centrifugal fan 73 is orthogonal to the outer wall surface 54a. The rotational axis of the centrifugal fan 73 can overlap the horizontal axis 36. When the centrifugal fan 73 rotates, room air is taken in from the opening 78 along the rotation axis of the centrifugal fan 73. The centrifugal fan 73 pushes indoor air in the centrifugal direction over the entire circumference. The indoor air thus pushed out is blown out from the second air outlet 42 through the air blowing path 79.

  The fan unit 26 includes a mounting plate 74. The mounting plate 74 is connected to the first member 72a of the air duct unit 72, as will be described later. The first decorative casing 71a, the second decorative casing 71b, and the mounting plate 74 constitute the external appearance of the fan unit 26. The mounting plate 74 is overlaid on the outer wall surface 54 a of the wall body 54. The mounting plate 74 is screwed to the wall body 54. The screw 81 passes through the wall body 54 from the inner wall surface (the back side of the outer wall surface) of the wall body 54 and is screwed into the mounting plate 74. Each screw 81 can have an axis parallel to the horizontal axis 36. Thus, the fan unit 26 is fixed to the first side panel 53a and the second side panel 53b, respectively.

  The fan unit 26 includes a second blower fan drive source 75. The second blower fan drive source 75 is supported by the mounting plate 74. Since the mounting plate 74 is overlaid on the outer wall surface 54 a of the wall body 54, the second blower fan drive source 75 is fixed to the outer wall surface 54 a of the wall body 54 on both sides of the first outlet 31. The 2nd ventilation fan drive source 75 can be comprised with an electric motor, for example. The centrifugal fan 73 is fixed to the drive shaft 82 of the second blower fan drive source 75.

  The fan unit 26 includes a protection member 76. The protection member 76 is fixed to the mounting plate 74. The protection member 76 can be formed in a so-called dome shape. The protection member 76 covers the second blower fan drive source 75. The drive shaft 82 of the second blower fan drive source 75 penetrates the protection member 76 and protrudes from the side where the second blower fan drive source 75 is attached to the side where the centrifugal fan 73 of the protection member 76 is attached. A centrifugal fan 73 is attached to the drive shaft 82 of the second fan drive source 75 outside the protective member 76. The protection member 76 closes the opening of the cylindrical portion 77.

  The fan unit 26 includes a plurality of rollers 83. The rollers 83 are arranged at an equal distance from the horizontal axis 36. The roller 83 has a cylindrical body. The cylindrical body is rotatably supported by the protection member 76. The axis of the cylinder extends parallel to the horizontal axis 36. The roller 83 can rotate around the axis of the cylinder. The cylindrical body can be formed of a resin material such as POM (polyacetal resin). The cylindrical body is inscribed in the cylindrical surface 77 a of the air duct unit 72. Thus, the air duct unit 72 is connected to the protective member 76 through the rollers 83 so as to be rotatable around the horizontal axis 36.

  As shown in FIG. 7, a rack 84 is formed in the cylindrical portion 77 of the air duct unit 72. The rack 84 is disposed on the cylindrical surface 77 a at a position displaced from the roller 83 in the direction along the horizontal axis 36 and extends concentrically with the horizontal axis 36. A drive gear 85 meshes with the rack 84. The rotation axis of the drive gear 85 is set parallel to the horizontal axis 36. The cylindrical portion 77 can rotate with respect to the protection member 76 around the horizontal axis 36 in accordance with the rotation of the drive gear 85. That is, the air duct unit 72 can rotate. The rack 84 and the drive gear 85 constitute power transmission means.

  A fan housing drive source 86 is attached to the attachment plate 74. The fan housing drive source 86 can be constituted by an electric motor, for example. The drive shaft of the fan housing drive source 86 is connected to the drive gear 85. The axis of the drive shaft overlaps with the rotation shaft of the drive gear 85. Thus, the rotation of the drive gear 85 is caused based on the power of the fan housing drive source 86. The fan housing drive source 86 generates a driving force that causes the fan housing 35 to rotate. As described above, when the mounting plate 74 is overlaid on the outer wall surface 54 a of the wall body 54, the fan housing drive source 86 passes through the wall body 54 and is disposed inside the wall body 54. Thus, the fan housing drive source 86 is fixed to the inner wall surface of the wall body. In addition, the fan housing drive source 86 may be screwed to the inner wall surface of the wall body 54. In this case, the drive shaft of the fan housing drive source 86 only needs to penetrate the wall body 54. A screw used for fixing the fan housing drive source 86 may be screwed into the mounting plate 74 from the inner wall surface (the back side of the outer wall surface) of the wall member 54 through the wall member 54. The attachment plate 74 can be more firmly fixed in accordance with such joint fastening.

  As shown in FIG. 8, the fan unit 26 includes a drive unit 87 for the fan unit wind direction plate 43. The fan unit wind direction plate 43 can change its posture around the rotation axis 88 fixed to the first member 72 a of the air passage unit 72. The rotation axis 88 overlaps a tangent line that is in a virtual plane orthogonal to the horizontal axis line 36 and is in contact with a virtual circle concentric with the horizontal axis line 36. The drive unit 87 is accommodated in the fan housing 35 and is fixed to the air passage unit 72 on the upper side of the air passage 79.

  The drive unit 87 includes a link member 89. The link member 89 is connected to the fan unit wind direction plate 43. A link case 91 is fixed to the air passage unit 72 for connection. The link case 91 holds the upper end of the fan unit wind direction plate 43 so as to be rotatable around the rotation axis 88 of the fan unit wind direction plate 43. Connected to the upper end of the fan unit wind direction plate 43 is an eccentric shaft 92 that is eccentric from the rotation axis 88 of the fan unit wind direction plate 43 and extends parallel to the rotation axis 88 of the fan unit wind direction plate 43. A guide path 93 for the eccentric shaft 92 is formed in the link case 91. The guide path 93 of the eccentric shaft 92 guides the movement of the eccentric shaft 92 along an arc concentric with the rotation shaft 88 of the fan unit wind direction plate 43 when the fan unit wind direction plate 43 rotates.

  The drive unit 87 includes a left / right wind direction plate drive source 94. The left and right wind direction plate drive source 94 can be constituted by an electric motor, for example. The left and right wind direction plate drive source 94 is fixed to the air duct unit 72. The left / right wind direction plate drive source 94 has a drive shaft 94 a extending in parallel with the rotation shaft 88 of the fan unit wind direction plate 43. The upper end of the drive shaft 94a is rotatably held by the link case 91. An eccentric shaft 96 that is eccentric from the shaft center 95 of the drive shaft 94a and extends in parallel with the shaft center 95 of the drive shaft 94a is connected to the upper end of the drive shaft 94a. A guide path 97 for the eccentric shaft 96 is formed in the link case 91. The guide path 97 of the eccentric shaft 96 guides the movement of the eccentric shaft 96 along an arc concentric with the shaft center 95 of the drive shaft 94a.

  The link member 89 rotatably holds the eccentric shafts 92 and 96. When the eccentric shaft 96 moves in the guide path 97 according to the rotation of the left and right wind direction plate drive source 94, the movement of the eccentric shaft 96 causes the link member 89 to move. The link member 89 maintains its posture during the movement. The movement of the eccentric shaft 96 produces a movement of the eccentric shaft 92 along the same path. Thus, the posture of the fan unit wind direction plate 43 can be changed synchronously. The drive unit 87 generates a drive force that causes a change in the attitude of the fan unit wind direction plate 43.

  As shown in FIG. 9, the main body 51 includes a heat exchanger unit 101. The heat exchanger unit 101 includes an indoor heat exchanger 14 and a heat exchanger holder 102. A pair of heat exchanger holders 102 are coupled to both ends of the indoor heat exchanger 14 in the horizontal direction. The heat exchanger holder 102 is formed by resin molding, for example. The heat exchanger holder 102 is connected to an installation plate fixed to, for example, a wall surface. Thus, the indoor heat exchanger 14 is connected to, for example, an indoor wall surface at the time of installation. The heat exchanger holders 102 can be connected to each other by a connecting plate 103 made of resin.

  The main body 51 includes a main frame 104. The main frame 104 is disposed from one end to the other end of the heat exchanger unit 101, and the main frame 104 is coupled to the indoor heat exchanger 14. For coupling, the main frame 104 is fixed to the heat exchanger holder 102. Since the heat exchanger holder 102 supports the indoor heat exchanger 14 having a relatively large weight, the heat exchanger holder 102 has a relatively high rigidity structure. The boss 57 is formed on the main frame 104 by, for example, integral molding of resin. The boss 57 is formed with a receiving surface 105 extending in parallel with (or in contact with) the virtual plane 56. A plate piece of the screw insertion piece 58 of the first side panel 53a or the second side panel 53b is overlaid on the receiving surface 105. In this way, the relative position (and relative attitude) of the first side panel 53a and the second side panel 53b with respect to the indoor heat exchanger 14 can be determined. The receiving surface 105 is threaded. The screw 55 is screwed into the screw hole. Thus, the first side panel 53a and the second side panel 53b are attached to the main frame 104.

  In the present embodiment, the first side panel 53a and the second side panel 53b are attached to the main frame 104. However, for example, even if the structure is attached to the heat exchanger holder 102, the production line operation is simplified. Can achieve the effect.

  The main body 51 includes an outlet frame 107. The outlet frame 107 is coupled to the indoor heat exchanger 14. The air outlet frame 107 is fixed to the heat exchanger holder 102 for coupling. In this way, the fixing of the outlet frame 107 is stabilized. A first air outlet 31 is formed in the air outlet frame 107. The first blower fan 27 and the first blower fan drive source 46 are supported by the blower outlet frame 107.

  The first electrical component unit 61 and the second electrical component unit 62 are supported by the main frame 104, respectively. The first control board in the first electrical component unit 61 and the second control board in the second electrical component unit 62 include a power supply and control circuit for the first blower fan drive source 46 and a power supply for the second blower fan drive source 75. The control circuit, the power supply and control circuit of the fan housing drive source 86, the power supply and control circuit of the left and right wind direction plate drive source 94, and other electrical components are connected. Connections are appropriately distributed to the first control board and the second control board. For example, wiring can be used for connection.

  As shown in FIG. 10, a refrigerant pipe 108 is connected to the indoor heat exchanger 14. The refrigerant pipe 108 is drawn from one side of the indoor heat exchanger 14 and accommodated behind the indoor heat exchanger 14. Here, the refrigerant pipe 108 extends from the indoor heat exchanger 14 and reaches the back of the indoor heat exchanger 14 while bypassing the fan housing 35 of the first side panel 53a. At this time, a space 109 is defined behind the fan housing 35 in the first side panel 53a and the second side panel 53b. The first side panel 53a and the second side panel 53b form an outer wall 111 of the space 109. The outer wall 111 provides a side wall of the indoor unit 12. The space 109 behind the fan housing 35 and the space 112 behind the indoor heat exchanger 14 are continuous. The outer wall 111 forms an edge 111a that forms the rear ends of the first side panel 53a and the second side panel 53b along the wall surface when the indoor unit 12 is installed on the wall surface of the room. On the edge 111a of the outer wall 111, a notch planned area 113 that is notched when the refrigerant pipe 108 is pulled out is formed. When the refrigerant pipe 108 is drawn out from one side of the indoor unit 12 along the wall without forming a piping structure in the wall behind the indoor unit 12, the notched area 113 is cut out, and the refrigerant pipe 108 is cut out. Passes through the notch formed.

  As shown in FIG. 11, the first side panel 53 a includes a peripheral wall 114 that covers the outer periphery of the fan housing 35 behind the fan housing 35. The peripheral wall 114 rises outward from the wall body 54. An outer wall 111 is connected to the outer end of the peripheral wall 114. The outer wall 111 extends rearward from the outer end of the peripheral wall 114. The virtual plane including the outer wall 111 extends parallel to the virtual plane including the outer wall surface 54a (or the inner wall surface 54b) of the wall body 54. In this way, the outer wall 111 continuously extends from the wall 54 to the back of the fan housing 35. When the indoor unit 12 is installed on the wall surface of the room, a space 109 is formed between the peripheral wall 114 and the wall surface.

  As shown in FIG. 12, the peripheral wall 114 of the first side panel 53 a covers the outer periphery along the contour of the fan housing 35. That is, the fan housing 35 is displaced forward so as to form a space 109 between the fan housing 35 and the wall surface. When the indoor unit 12 is installed on the wall surface of the room, the fan housing 35 is displaced in a direction away from the wall surface. According to the displacement of the fan housing 35, the planned cutout region 113 can be surely accommodated between the peripheral wall 114 and the edge 111a of the outer wall 111. Therefore, even if the indoor heat exchanger 14 is installed close to the wall surface, the refrigerant pipe 108 can be pulled out from one side of the indoor unit 12 along the indoor wall surface through the back of the fan housing 35. Moreover, since the fan housing 35 is disposed outside the first side panel 53a, a sufficient size can be secured in the fan housing 35 while the space 109 is secured behind. The size of the fan housing 35 can contribute to an increase in the airflow of room temperature air.

  As shown in FIG. 13, the peripheral wall 114 of the second side panel 53 b covers the outer periphery along the contour of the fan housing 35. That is, the fan housing 35 is displaced forward so as to form a space 109 between the fan housing 35 and the wall surface. When the indoor unit 12 is installed on the wall surface of the room, the fan housing 35 is displaced in a direction away from the wall surface. According to the displacement of the fan housing 35, the planned cutout region 113 can be surely accommodated between the peripheral wall 114 and the edge 111a of the outer wall 111. Therefore, even if the indoor heat exchanger 14 is installed close to the wall surface, the refrigerant pipe 108 can be pulled out from one side of the indoor unit 12 along the indoor wall surface through the back of the fan housing 35. In addition, since the fan housing 35 is disposed outside the second side panel 53b, a sufficient size can be secured in the fan housing 35 while the space 109 is secured behind. The size of the fan housing 35 can contribute to an increase in the airflow of room temperature air.

  The shorter the distance between the indoor heat exchanger 14 and the wall surface, the smaller the moment generated by the weight of the indoor heat exchanger 14 and acting on the wall surface. As a result, the rigidity of the installation structure including the heat exchanger holder 102 can be suppressed as much as possible. On the other hand, when the fan housing 35 is not displaced forward with respect to the indoor heat exchanger 14, when the indoor heat exchanger 14 is installed close to the wall surface, the fan housing 35 is placed behind the fan housing 35. A sufficiently large space cannot be secured. The refrigerant pipe 108 must be pulled out from the lower surface of the indoor unit 12. The appearance after installation will deteriorate. Still, if the refrigerant pipe 108 is pulled out from one side of the indoor unit 12, the indoor heat exchanger 14 will be separated from the wall surface. The moment generated by the weight of the indoor heat exchanger 14 and acting on the wall surface increases.

  Next, the operation of the air conditioner 11 will be described. For example, when the cooling operation is set, the four-way valve 18 connects the second port 18b and the third port 18c to each other and connects the first port 18a and the fourth port 18d to each other. The refrigerant circulates in the refrigeration circuit 19 according to the operation of the compressor 15. As a result, cold air is generated in the indoor heat exchanger 14. The temperature of the cold air is at least lower than the temperature of the room air. The operation of the compressor 15 is controlled according to the room temperature detected by the room temperature sensor. In addition, the compressor 15 may be stopped when, for example, the presence sensor is detected over a predetermined period by a human sensor.

  When the first blower fan 27 rotates, for example, as shown in FIG. 14, a cold airflow 121 blows out from the first outlet 31. At this time, the postures of the vertical wind direction plates 32a and 32b are appropriately controlled. The blowing of the airflow 121 can be controlled according to the direction of the up and down wind direction plates 32a and 32b. Here, the vertical airflow direction plates 32a and 32b are held in a substantially parallel posture with respect to the floor surface, so that the vertical airflow direction plates 32a and 32b are blown out from the first air outlet 31 so that the cold airflow 121 is blown in the horizontal direction. Be controlled.

  When the centrifugal fan 73 rotates, indoor air is sucked into the space inside the fan housing 35 from the second suction port 37 in the fan unit 26. The temperature of room air (hereinafter referred to as “room temperature air”) is equal to room temperature. The air flow of the sucked room temperature air blows out from the second outlet 42 of the fan unit 26. At this time, the attitude of the fan housing 35 is appropriately controlled around the horizontal axis 36. For example, as illustrated in FIG. 14, the posture of the fan housing 35 can change from a horizontal posture to a front downward (downstream direction). The fan housing 35 can guide the air flow 122 from the second air outlet 42 downward from the horizontal direction. The air flow 122 of room temperature air blows downward from the second blow-out port 42.

  Generally, the indoor unit 12 is installed at a relatively high position indoors. If the cool air flow 121 is guided in the horizontal direction, the cool air descends from a high position toward the floor surface. Cold air gradually accumulates indoors. At this time, the fan unit 26 can direct the air flow 122 of room temperature air directly to the occupant M. The fan unit 26 can function as a substitute for a so-called fan during cooling operation. Mixing of cold air can be prevented in the air flow 122 of room temperature air, and as a result, the occupant M can obtain a pleasant cool feeling. The occupant M can obtain a cool feeling based on the heat of vaporization generated by the air flow 122 in addition to the cool feeling based on the temperature drop in the room.

  For example, when the heating operation is set, the four-way valve 18 connects the second port 18b and the fourth port 18d to each other and connects the first port 18a and the third port 18c to each other. The refrigerant circulates in the refrigeration circuit 19 according to the operation of the compressor 15. As a result, warm air is generated in the indoor heat exchanger 14. The temperature of the warm air is at least higher than the temperature of the room air. The operation of the compressor 15 is controlled according to the room temperature detected by the room temperature sensor. For example, when the presence sensor is detected over a predetermined period by the human sensor, the compressor 15 may be stopped.

  As shown in FIG. 15, in the heating operation, the warm air flow 123 blows out from the first outlet 31 in accordance with the rotation of the first blower fan 27. At this time, the postures of the vertical wind direction plates 32a and 32b can be established downward. The up-and-down air direction plates 32a and 32b guide the airflow 123 from the first air outlet 31 downward toward the floor surface. The warm air flow 123 blows downward from the first outlet 31.

  Room temperature air is blown out from the second outlet 42 in accordance with the rotation of the centrifugal fan 73. Here, the posture of the fan housing 35 is set slightly upward (upstream direction) from the up-and-down airflow direction plates 32a and 32b. The fan housing 35 of the fan unit 26 establishes a posture in which the air flow 122 of room temperature air is blown downward from a position higher than the first air outlet 31 in the same manner as the vertical airflow direction plates 32a and 32b. The air flow 122 of the fan unit 26 forms a room temperature air layer above the warm air flow 123. The air flow 122 of room temperature air blown out from the second air outlet 42 can collide with the warm air flow and control the direction and movement of the warm air flow 123. Warm air can be sandwiched between the airflow 122 of the fan unit 26 and the floor surface. Thus, the rise in warm air is suppressed. Warm air is sent to the desired place indoors. Resident M can continue to feel warm under his feet. Since the room temperature is lower than the set temperature but reaches a specific temperature, it can be avoided that the occupant M feels chilly based on the air flow 122 of room temperature air. The indoor temperature environment is efficiently arranged.

  In such an air conditioner 11, cold air or warm air flow 121, 123 is blown out from the first outlet 31 of the main unit 25. The air flow 122 of room temperature air is blown out from the second outlet 42 of the fan unit 26. The airflow 122 of room temperature air and the airflows 121 and 123 of cold air or warm air have a temperature difference. Since the specific gravity of the air changes according to the temperature, the air flow 122 of room temperature air can control the direction and movement of the cold air and the warm air flow 121 and 123 according to the difference in specific gravity. Cold air or warm air can be sent to a desired place indoors. Thus, the indoor temperature environment can be adjusted efficiently.

  In the indoor unit 12, the space 109 behind the fan housing 35 and the space 112 behind the indoor heat exchanger 14 are continuous. Both 109 and 112 are not partitioned. The wall which partitions both 109 and 112 is omitted. The refrigerant pipe 108 can be drawn out to the outside of the first side panel 53a or the second side panel 53b without processing the wall. Complicating the drawing operation of the refrigerant pipe 108 can be avoided.

  As is clear from FIG. 4, in the indoor unit 12, the rotation axis of the centrifugal fan 73 (which overlaps the horizontal axis 36) is ahead of the vertical virtual plane including the first blower fan 27, that is, the rotation axis 45 of the cross flow fan. It only has to be arranged. When the rotational axis of the centrifugal fan 73 is shifted in this way, the displacement of the fan housing 35 can be easily realized. That is, a sufficient size can be secured for the centrifugal fan while ensuring a space behind. Accordingly, the refrigerant pipe 108 can reliably pass through the back of the fan housing 35 and be drawn from one side of the indoor unit 12 along the wall surface.

  As is clear from FIG. 2, the front end of the fan housing 35 is fitted to the surface of the front panel 29. Therefore, although the fan housing 35 is displaced forward relative to the indoor heat exchanger 14, a good appearance can be secured in the indoor unit 12.

  Moreover, in the indoor unit 12, a space 109 is secured behind the fan housing 35 in both the first side panel 53a and the second side panel 53b. The refrigerant pipe 108 can be drawn out from either the left or right side. As a result, the degree of freedom of the installation location of the indoor unit 12 is expanded.

  12 air conditioner (indoor unit), 14 heat exchanger (indoor heat exchanger), 27 first blower fan, that is, cross flow fan, 29 front panel, 35 auxiliary housing (fan housing), 42 auxiliary air outlet (first 2 outlets), 45 rotating shaft, 53a first side panel, 53b second side panel, 54 wall body, 54a outer wall surface, 54b inner wall surface, 73 centrifugal fan, 104 frame (main frame), 108 refrigerant piping, 109 space 111 outer wall.

Claims (3)

A heat exchanger,
A frame coupled to the heat exchanger and disposed from one end to the other end of the heat exchanger;
A side panel attached to the frame on at least one side of the heat exchanger, and an auxiliary housing having a blower inside, which is movably attached;
The auxiliary housing is arranged forward so as to form a space between the auxiliary housing and the wall surface during installation,
An air conditioner comprising: a refrigerant pipe disposed in the space behind the auxiliary housing and connected to the heat exchanger.   2. The air conditioner according to claim 1, wherein the side panel includes a wall body fixed to the frame, extends continuously from the wall body to the back of the auxiliary housing, and defines an outer wall of the space. An air conditioner characterized by forming.   The air conditioner according to claim 1 or 2, further comprising: a cross flow fan disposed in association with the heat exchanger; and a centrifugal fan accommodated in the auxiliary housing, wherein the rotational axis of the centrifugal fan is The air conditioner is arranged in front of a vertical virtual plane including a rotation axis of the cross flow fan.

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