Air conditioning systems and radiant heating and cooling systems

Abstract

To provide an air conditioner for a radiant heating and cooling system that has sufficient heating and cooling performance even with a low height. [Solution] The air conditioning system for a radiant heating and cooling system includes an air conditioner 100 comprising a housing 110, a cross-flow fan unit 130 disposed within the housing 110, a heat exchange unit 140 disposed on the intake side of the cross-flow fan unit 130, and a lower guide member 160 that defines the bottom surface of an exhaust passage that sends the air discharged from the outlet forward. A guide spacer 500 is disposed above the air conditioner 100 to guide the air discharged from the top of the housing 110 forward and define the top surface of the exhaust passage, and the apex of the cross-flow fan 131 of the cross-flow fan unit 130 is positioned higher than the rear end of the lower guide member 160.

Description

Technical Field

[0001] The present invention relates to an air conditioner system and a radiant heating and cooling system.

Background Art

[0002] In recent years, as a heating and cooling system for adjusting the temperature of indoor air, there is known a radiant heating and cooling system in which a heat radiation panel is heated or cooled by an air conditioner provided indoors, and the temperature of the interior is adjusted by utilizing infrared radiation from the heated or cooled radiation panel. According to such a radiant heating and cooling system, since the wind does not directly hit people or objects indoors and there is no need to send air far away, a silent effect can be obtained.

[0003] As an air conditioner used in such a radiant heating and cooling system, for example, Patent Document 1 discloses an air conditioner including a housing having an air intake located in the front surface and an air outlet located in the upper surface, a cross-flow fan disposed inside the housing, and a heat exchanger disposed in front of the cross-flow fan.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] When installing such a radiant heating and cooling system in a general household, since the height from under the beam to the ceiling is limited, it is preferable that the height of the air conditioner is small so as not to protrude from under the beam. When the height of the air conditioner having the configuration described in Patent Document 1 is restricted, the air volume decreases, and therefore, in order to compensate for this decrease in air volume, the rotational speed of the cross-flow fan has to be increased. However, there is a problem that when the rotational speed of the cross-flow fan is increased, the noise generated from the fan becomes large.

[0006] The present invention has been made in view of the above problems, and its objective is to provide an air conditioner for a radiant heating and cooling system that has sufficient heating and cooling performance even if it is a low-height air conditioner. [Means for solving the problem]

[0007] According to one aspect of the present invention, an air conditioning system for a radiant heating and cooling system is provided, comprising: an air conditioner having an air intake port formed on its front surface and opening above the air intake port; a cross-flow fan unit disposed inside the housing; a heat exchange unit disposed on the intake side of the cross-flow fan unit; and a lower guide member that defines the bottom surface of an exhaust passage that sends air discharged from the housing forward; and an upper guide member provided on the top of the housing that guides air discharged from the top of the housing forward and defines the top surface of the exhaust passage, wherein the apex of the cross-flow fan of the cross-flow fan unit is positioned higher than the rear end of the lower guide member. The airflow rate of the cross-flow fan unit depends on the size of the space downstream of the cross-flow fan. According to the above embodiment, since the apex of the cross-flow fan of the cross-flow fan unit is located higher than the rear end of the lower guide member, a large exhaust space can be secured downstream of the cross-flow fan. As a result, a larger volume of air can be passed through the heat exchange unit and discharged without increasing the rotation speed of the cross-flow fan compared to conventional designs, ensuring sufficient heating and cooling performance even with an air conditioner that is low in height (i.e., has a small thickness in the height direction). In addition, since a large volume of air can be delivered without increasing the rotation speed of the cross-flow fan, the rotation noise of the cross-flow fan can be suppressed, improving heating and cooling performance while ensuring quiet operation.

[0008] According to one aspect of the present invention, the central axis of the cross-flow fan of the cross-flow fan unit is located above the center of the air conditioner in the height direction. According to the above embodiment, by raising the position of the cross-flow fan unit, it is possible to lower the height of the air conditioner while securing sufficient exhaust space downstream of the cross-flow fan.

[0009] According to one aspect of the present invention, the exhaust passage decreases in height and widens towards the downstream direction. According to the above embodiment, the reduction in the cross-sectional area of ​​the exhaust flow path is suppressed, so the exhaust from the air conditioner can be diffused over a wide area laterally across the heat radiation panel without reducing the exhaust flow rate.

[0010] According to one aspect of the present invention, the lower guide member is located on the rear side and comprises a rear flat portion of a certain height and an inclined portion that is continuous with the front of the rear flat portion and slopes upward, wherein the height of the exhaust passage decreases downstream in the inclined portion. According to the above embodiment, a sufficient cross-sectional area of ​​the exhaust passage can be secured, and the height of the intake-side space in front of the cross-flow fan unit can be increased, allowing the heat exchange unit to be installed in a wider area.

[0011] According to one aspect of the present invention, the upper guide member has a pair of side walls that define both sides of the exhaust flow path, and the distance between the pair of side walls widens toward the downstream side. According to the above embodiment, even if the height of the exhaust passage is reduced, a sufficient cross-sectional area of ​​the exhaust passage can be secured, and the exhaust from the air conditioner can be diffused over a wide area of ​​the heat radiation panel.

[0012] According to one aspect of the present invention, the heat exchange unit includes a first heat exchange section provided in front of the cross-flow fan unit and inclined forward toward upward, and a second heat exchange section provided below the cross-flow fan unit. According to the above embodiment, even in the intake-side space of a cross-flow fan unit with a limited volume, the surface area of ​​the heat exchange section can be increased, and the contact area of ​​the air with the heat exchange section can be increased.

[0013] According to one aspect of the present invention, the height of the air conditioner system is 30 cm or less. The installation location of the indoor unit of a non-radiative air conditioner in a normal house or apartment is in the range of about 30 cm from the ceiling to under the beam. However, according to the above aspect, the air conditioner system for the radiative heating and cooling system can be installed within the range from the ceiling to under the beam, similar to the indoor unit of the non-radiative air conditioner.

[0014] According to one aspect of the present invention, there is provided a radiative heating and cooling system including a heat insulating material provided along the ceiling, a heat radiation panel disposed below the heat insulating material, and the above-described air conditioner that supplies air between the heat insulating material and the heat radiation panel.

Effects of the Invention

[0015] According to the present invention, it is possible to provide an air conditioner for a radiative heating and cooling system having sufficient heating and cooling performance even if the air conditioner has a low height.

Brief Description of the Drawings

[0016] [Figure 1] It is a perspective view seen from below showing a radiative heating and cooling system according to an embodiment of the present invention. [Figure 2] It is a perspective view seen from above showing a radiative heating and cooling system according to an embodiment of the present invention. [Figure 3] It is a perspective view seen from below showing the radiative heating and cooling system in a state where the heat radiation panel is removed. [Figure 4] It is a perspective view seen from below showing the radiative heating and cooling system in a state where the heat radiation panel and the heat insulating panel are removed. [Figure 5] It is a cross-sectional view of a radiative heating and cooling system according to an embodiment of the present invention. [Figure 6] It is a perspective view showing the configuration of the mounting member and the spacer. [Figure 7] It is a longitudinal cross-sectional view in the front-rear direction of the air conditioner and the guide spacer. [Figure 8] It is a perspective view seen from above showing the air conditioner. [Figure 9] It is a perspective view from the side showing the vicinity of the cover of the air conditioner with the cover closed. [Figure 10] It is a perspective view from below showing the vicinity of the cover of the air conditioner with the cover closed. [Figure 11] It is a perspective view seen from the front upper side showing the guide spacer. [Figure 12] It is a perspective view seen from the front lower side showing the guide spacer. [Figure 13] It is a longitudinal sectional view in the front - rear direction showing the air flow in the air conditioner. [Figure 14] It is a perspective view seen from above showing the mounting frame. [Figure 15] It is a perspective view seen from below showing the mounting frame. [Figure 16] It is an enlarged perspective view showing the front mounting plate. [Figure 17] It is an enlarged perspective view showing the intermediate spacer plate and the engagement pin. [Figure 18] It is an enlarged perspective view showing the fixing plate and the rear spacer plate. [Figure 19] It is a perspective view seen from above showing the front heat - insulating panel. [Figure 20] It is a perspective view seen from below showing the front heat - insulating panel. [Figure 21] It is a perspective view showing the structure near the fittings for attaching the front heat - insulating panel [Figure 22] It is a perspective view seen from above showing the front heat - insulating panel. [Figure 23] It is a perspective view seen from below showing the front heat - insulating panel. [Figure 24] It is a perspective view showing the structure of the fittings. [Figure 25] It is a perspective view showing the structure of the magnet member. [Figure 26] It is a perspective view seen from above showing the heat - radiating panel. [[ID=5 and 53]] [Figure 27] It is a view of the heat - radiating panel seen from above. [Figure 28]This diagram shows a heat radiation panel in a folded state. [Figure 29] This diagram shows the frame configuration of a thermal radiation panel. [Figure 30] This is a magnified perspective view showing the retaining pins of the frame of a thermal radiation panel. [Figure 31] This is a magnified view of the adhesive fittings on the frame of a thermal radiation panel. [Modes for carrying out the invention]

[0017] The following describes a radiant heating and cooling system according to one embodiment of the present invention. In the following description, "front" refers to the direction in which the air conditioner blows air, and "rear" refers to the opposite direction.

[0018] <Radiant heating and cooling system> Figure 1 is a perspective view from below showing a radiant heating and cooling system according to one embodiment of the present invention. Figure 2 is a perspective view from above showing a radiant heating and cooling system according to one embodiment of the present invention. Figure 3 is a perspective view from below showing a radiant heating and cooling system with the heat radiation panel removed. Figure 4 is a perspective view from below showing a radiant heating and cooling system with both the heat radiation panel and the insulation panel removed. Figure 5 is a cross-sectional view of a radiant heating and cooling system according to one embodiment of the present invention.

[0019] The radiant heating and cooling system of this embodiment is suitable for use in bedrooms and hospitals because it does not blow air directly on people or objects and the air conditioner operates quietly. As shown in Figures 1 to 5, the radiant heating and cooling system 1 according to this embodiment includes an air conditioner 100, a mounting frame 200, an insulating panel 300, a heat radiating panel 400, and a guide spacer 500. The air conditioner 100 is fixed to a mounting member, which will be described later, attached to the wall. The guide spacer 500 is interposed between the top of the air conditioner 100 and the ceiling, and the air conditioner 100 and the guide spacer 500 constitute an air conditioning system 700 that sends heated or cooled air forward.

[0020] The mounting frame 200 is attached to the ceiling in front of the guide spacer 500. The insulation panel 300 is attached below the mounting frame 200. The heat radiating panel 400 is positioned at a predetermined distance from the insulation panel 300.

[0021] In this embodiment of the radiant heating and cooling system 1, the air conditioner 100 draws in air from the front (the lower front in this embodiment), heats or cools it, and discharges it from the top. The air discharged from the air conditioner 100 is then blown forward by the guide spacer 500. In other words, the air discharged from the air conditioner 100 is blown by the guide spacer 500 into the space 600 between the insulation panel 300 and the heat radiation panel 400. The heat radiation panel 400 is heated or cooled by the air blown into the space 600 between the insulation panel 300 and the heat radiation panel 400. As the heat radiation panel 400 is heated or cooled in this way, the indoor air, furniture, people, etc. are heated or cooled by the infrared radiation emitted from the heat radiation panel 400. In addition, although the sides of the insulation panel 300 and the heat radiation panel 400 are closed, the front is open, and the air blown between the insulation panel 300 and the heat radiation panel 400 is released into the room from the front. Therefore, the air in the room is also heated or cooled by the air blown out from the front of the gap between the insulation panel 300 and the heat radiation panel 400. In this way, the radiant heating and cooling system 1 of this embodiment combines a radiant heating method using infrared radiation from the heat radiation panel 400 with a convection method in which air is blown out from the gap between the insulation panel 300 and the heat radiation panel 400, so that the air in the room can be heated or cooled quickly without directly blowing the air blown from the air conditioner onto a person sleeping under the heat radiation panel 400 (the start-up time can be shortened).

[0022] <Air conditioning system> Air conditioner installation method The air conditioner 100 is fixed in the room by a plate-shaped mounting member 180. Figure 6 is a perspective view showing the configuration of the mounting member and spacer. As shown in Figure 6, the mounting member 180 has a plate-shaped main body 181 and an air conditioner engaging portion 182 that extends laterally at the top. The air conditioner engaging portion 182 is L-shaped in cross-section in the front-rear direction, extends forward from the main body 181, and its front end is bent upward.

[0023] Furthermore, the mounting member 180 can accommodate a left spacer 190A at its upper left end and a right spacer 190B at its upper right end. A lower engaging portion 182A and a lateral engaging portion 183A are formed on the upper left of the mounting member 180. The lower engaging portion 182A is L-shaped in its front-rear cross-section, extending forward from the main body 181, with its front end bent upward. The lateral engaging portion 183A is L-shaped in its horizontal cross-section, extending forward from the main body 181, with its front end bent to the left. The left spacer 190A is formed by bending a plate material and comprises a base end 191A, a forward extension 192A, and an upper part 193A. The base end 191A extends upward when attached to the mounting member 180. The forward extension 192A extends forward from the upper end of the base end 191A. The upper part 193A extends upward from the front end of the forward extension 192A. The left spacer 190A is positioned and attached to the mounting member 180 by the lower edge of the base end 191A being sandwiched in the lower engaging part 182A and also being sandwiched in the lateral engaging part 183A. The lower end of the left spacer 190A abuts against the forward-extending portion of the lower engaging part 182A.

[0024] Similarly, a lower engaging portion 182B and a lateral engaging portion 183B are formed on the upper right of the mounting member 180. The lower engaging portion 182B is L-shaped in the front-rear cross-section, extends forward from the main body 181, and its front end is bent upward. The lateral engaging portion 183B is L-shaped in the horizontal cross-section, extends forward from the main body 181, and its front end is bent to the right. The left lower engaging portion 182A and the right lower engaging portion 182B are provided at the same height. The right spacer 190B has the same shape as the left spacer 190A, is formed by bending a plate material, and comprises a base end portion 191B, a forward extension portion 192B, and an upper portion 193B. The right spacer 190B is positioned and attached to the mounting member 180 by the lower edge of the base end portion 191B being sandwiched between the lower engaging portion 182B and the lateral engaging portion 183B. The lower end of the right spacer 190B is in contact with the portion of the lower engaging part 182B that extends forward.

[0025] When installing the air conditioner 100, the mounting member 180 is positioned so that the upper ends of the left spacer 190A and the right spacer 190B abut against the ceiling, and is fixed to the wall surface with screws. The air conditioner 100 is held by the mounting member 180 by engaging an engaging portion (not shown) formed on its back surface with the air conditioner engaging portion 182. In this way, the upper ends of the spacers abut against the ceiling and the lower ends abut against the mounting member 180, so that the air conditioner engaging portion 182 of the mounting member 180 is parallel to the ceiling and at a predetermined distance from the ceiling. As a result, the air conditioner 100 attached to the mounting member 180 is positioned so that the distance from the ceiling to the top surface of the air conditioner 100 is a predetermined distance, that is, so that the ceiling and the top surface of the air conditioner are parallel. Furthermore, because the left spacer 190A and the right spacer 190B are formed by bending a sheet of material, the upper ends of the left spacer 190A and the right spacer 190B can be brought into contact with the ceiling even if a molding is formed at the boundary between the ceiling and the wall.

[0026] In this embodiment, a pair of left and right spacers 190A and 190B are attached to the mounting member 180, but the invention is not limited to this, and three or more spacers may be attached. Also, in this embodiment, the spacers 190A and 190B and the mounting member 180 are separate components, but the spacers 190A and 190B may be integrally constructed with the mounting member 180. Furthermore, in this embodiment, the left spacer 190A and the right spacer 190B are formed by bending a plate material, but they do not have to be bent.

[0027] air conditioner Figure 7 is a longitudinal cross-sectional view of the air conditioner and guide spacer in the front-to-back direction. Figure 8 is a perspective view of the air conditioner from above. As shown in Figure 7, the air conditioner 100 comprises a housing 110, a cross-flow fan unit 130, a heat exchange unit 140, a drain pan 150, a lower guide member 160, and a cover 170. The air conditioner 100 and the guide spacer 500 constitute an air conditioning system 700 that sends heated or cooled air forward.

[0028] The housing 110 has a horizontally elongated space inside, which houses a cross-flow fan unit 130, a heat exchange unit 140, and a drain pan 150. The front of the housing 110 slopes forward and upward. A pair of air intake ports 112 are formed on the front of the housing 110, and filters 111 are attached to the air intake ports 112. The air intake ports 112 are formed in a horizontally elongated rectangular shape. A recess 114 is formed on the front (below the front) of the bottom surface 113 of the housing 110. The recess 114 is recessed backward relative to the rest of the front surface and recessed upward relative to the rest of the bottom surface 113. An air outlet 115 is formed on the top of the housing 110. The air outlet 115 is horizontally elongated rectangular in shape. The inner wall surface of the housing 110 has an arc-shaped section 117 at the rear.

[0029] The cross-flow fan unit 130 comprises a cross-flow fan 131 whose central axis extends laterally, and a motor (not shown) connected to the central axis of the cross-flow fan 131. The motor is located on one side of the housing 110 (the left side when viewed from the front in this embodiment). The cross-flow fan unit 130 rotates the cross-flow fan 131 with the motor, drawing in indoor air from the intake port 112 on the front of the housing 110 and generating an airflow directed toward the outlet 115 formed at the top of the housing 110. In this embodiment, the central axis A of the cross-flow fan 131 is located above the center of height of the air conditioner 100, and further above the center of height (half the height) of the air conditioning system 700, which consists of the air conditioner 100 and the guide spacer 500. In addition, the cross-flow fan unit 130 is positioned such that a portion of the rear side of the cross-flow fan 131 is located near the arc portion 117 of the inner wall surface of the housing 110.

[0030] The heat exchange unit 140 comprises a front heat exchange section 141 as a front heat exchange section and a lower heat exchange section 142 as a lower heat exchange section. The front heat exchange section 141 is located in front of the cross-flow fan 131 of the cross-flow fan unit 130. The front heat exchange section 141 is constructed by stacking three layers of heat exchange coils. Stacking three layers of heat exchange coils means that one layer of heat exchange coil is defined as a combination of a refrigerant inlet, outlet, and flow path from the inlet to the outlet, and three such layers are stacked. In this embodiment, the front heat exchange section 141 is configured with three layers of heat exchange coils, but it may also be single-layer, double-layer, or four or more layers. However, considering heat exchange efficiency, a configuration of three or more layers is preferable. The front heat exchange section 141 is positioned to tilt forward upward. The angle of the front heat exchange section 141 with respect to the horizontal is greater than the angle of the lower heat exchange section 142 with respect to the horizontal. The angle of the front heat exchange section 141 with respect to the horizontal direction is 50° or more, preferably 55° or more, and more preferably 60° or more. The upper end of the front heat exchange section 141 reaches near the upper part of the air intake port 112 on the front of the housing 110. The front heat exchange section 141 and the lower heat exchange section 142 are made by fabricating a single rectangular heat exchanger and cutting it diagonally in a side view, with one end becoming the front heat exchange section 141 and the other becoming the lower heat exchange section 142. The cut surface of the front heat exchange section 141 is the lower end, and the surface opposite the cut surface of the lower heat exchange section 142 is the front end. Since the lower end of the front heat exchange section 141 is connected to the front end of the lower heat exchange section 142, the area of ​​the lower end of the front heat exchange section 141 is smaller than the area of ​​the front end surface of the lower heat exchange section 142.

[0031] The lower heat exchange section 142 is located below the cross-flow fan 131 of the cross-flow fan unit 130. The lower heat exchange section 142 is also constructed by stacking three layers of heat exchange coils. The lower heat exchange section 142 may also consist of one, two, or four or more layers, but considering the heat exchange efficiency, a configuration of three or more layers is preferable. The lower heat exchange section 142 is positioned to incline forward toward upward. The front end of the lower heat exchange section 142 is connected to the lower end of the front heat exchange section 141. The rear end of the lower heat exchange section 142 reaches near the lower end of the arc portion 117 on the inner wall surface of the internal space of the housing 110.

[0032] The drain pan 150 is located below the heat exchange unit 140. The rear end of the drain pan 150 reaches the inner wall surface of the housing 110. The front end of the drain pan 150 is located in front of the lower end of the front heat exchange section 141, and the front end of the drain pan 150 is located behind the upper end of the front heat exchange section 141. In this way, the drain pan 150 is provided to partially cover the lower end of the front heat exchange section 141 and to cover the lower heat exchange section 142. In this embodiment, the drain pan 150 is provided to cover only the lower end of the front heat exchange section 141, but it may also be provided to cover the entire front heat exchange section 141. However, by covering only the lower end of the front heat exchange section 141, the air conditioner 100 can be made more compact and its design can be improved. The drain pan 150 is mostly inclined downward toward the rear. A drain pipe for discharging condensed water to the outside is connected to the lateral end of the drain pan 150.

[0033] The lower guide member 160 includes an inclined portion 161 that slopes downward toward the rear, a flat portion 162 that extends substantially horizontally toward the rear from the rear end of the inclined portion 161, and a downward extension portion 163 that extends downward from the rear end of the flat portion 162. The front end of the inclined portion 161 is connected to the front edge of the air outlet 115. The downward extension portion 163 slopes forward toward the rear, and its lower end extends to the vicinity of the cross-flow fan 131. The lower guide member 160 is positioned such that the apex B of the cross-flow fan 131 is located above the flat portion 162.

[0034] The cover 170 comprises a front plate 171 and a pair of side plates 172 extending rearward from the sides of the front plate 171. The front plate 171 comprises a downward curved portion 171A and an upward curved portion 171B extending from the upper end of the downward curved portion 171A. The downward curved portion 171A is formed in a circular arc shape that is convex downward toward the front. The upward curved portion 171B extends upward toward the front as a whole. Furthermore, the upward curved portion 171B has a shape that curves upward as if advancing upward. In addition, the front part of the upward curved portion 171B extends higher than the rear part.

[0035] The pair of side plates 172 have upper edges that extend approximately horizontally backward from the rear of the upward curved portion 171B. The rear edges of the pair of side plates 172 also extend in a straight line, sloping downward and backward. When the cover 170 is attached, the rear edges of the side plates 172 are parallel to the front surface of the housing 110.

[0036] Furthermore, the cover 170 has support members 173 extending rearward toward the housing 110 at the lower ends of both sides, and the tips of the support members 173 are rotatably connected to the housing 110. The cover 170 also has an arm 174 extending rearward from the top, and the tip of the arm 174 can be fixed to the housing 110 by a latch mechanism (not shown). Figure 9 is a side perspective view showing the vicinity of the cover of the air conditioner with the cover closed. Figure 10 is a bottom perspective view showing the vicinity of the cover of the air conditioner with the cover closed. As shown in Figures 9 and 10, the length of the support members 173 and the latch mechanism are adjusted so that when the cover 170 is closed (with the upper end fixed to the housing 110), there is a gap of 5 mm or more between the rear edge of the side plate 172 and the front surface of the housing 110. As a result, an upper opening 183 is formed between the upper edge of the cover 170 and the housing 110, a lower opening 184 is formed between the lower edge of the cover 170 and a recess 114 on the bottom surface of the housing 110, and a lateral opening 185 is formed on both the left and right sides between the rear edge of the side plate 172 of the cover 170 and the housing 110. Since the cover 170 is provided to cover the front surface of the filter 111 attached to the air intake 112, the filter 111 is not directly visible from the inside, improving the aesthetic appearance. In addition, since the upper opening 183, lower opening 184 and lateral opening 185 are provided between the cover 170 and the housing 110, the necessary airflow can be secured while improving the aesthetic appearance.

[0037] Guide Spacer Figure 11 is a perspective view of the guide spacer from the front and above. Figure 12 is a perspective view of the guide spacer from the front and below. The guide spacer 500 guides the air discharged from the top of the housing 110 of the air conditioner 100 toward the front and functions as an upper guide member that defines the upper surface of the exhaust flow path. As shown in Figures 11 and 12, the guide spacer 500 comprises a spacer body 520 formed in the shape of a rectangular parallelepiped and a discharge frame 510 attached to the front surface of the spacer body 520. A flow path space 501 is formed in the guide spacer 500. The flow path space 501 has a bottom opening 502 that opens to the bottom surface of the spacer body 520 and a discharge opening 512 that opens into the front discharge frame 510. The side walls 513A and 513B that form the flow path space 501 spread outward toward the front. In this embodiment, since the motor of the cross-flow fan unit 130 is located on the left side in a front view, the left side wall 513A of the flow path space 501 extends significantly further forward than the right side wall 513B. The front part 515 of the top surface of the flow path space 501 is formed to be substantially flat, and the rear part 514 is formed to be an arc shape that protrudes upward and backward in a cross section perpendicular to the front-rear direction.

[0038] The discharge frame 510 is formed in a horizontally elongated rectangular parallelepiped shape when viewed from the front, with a discharge opening 512 opening on its inner side. The discharge frame 510 is provided so as to follow the periphery of the discharge opening 512 of the flow path space 501 of the spacer body 520. Three engaging portions 511 are formed on the upper surface of the discharge frame 510 at predetermined intervals. Each engaging portion 511 has a rectangular parallelepiped recess 511A that opens upward. The width of this recess 511A is slightly larger than the engaging claw 204 of the mounting frame 200.

[0039] The guide spacer 500 is positioned between the air conditioner 100 and the ceiling. This allows fluid communication between the internal space of the housing 110 and the flow path space 501 of the guide spacer 500 through the outlet 115 of the housing 110 and the lower opening 502 of the guide spacer 500. In other words, the conditioned air blown out from the air conditioner 100 is blown into the flow path space 501.

[0040] In this embodiment, the height of the air conditioning system, which combines the guide spacer 500 and the air conditioner 100, is 30 cm or less, and it can be installed in the typical mounting position of a household air conditioner.

[0041] In this embodiment, the case in which the guide spacer 500 is configured separately from the housing 110 of the air conditioner 100 has been described, but it is not limited to this, and it may be configured as an integral part. In such a case, the air conditioner will draw in air from the front, particularly the lower front, and blow out air from the upper front.

[0042] Airflow generated by air conditioners The inside of the air conditioning system housing 110, with the guide spacer 500 installed above, is divided into an intake side space 190 on the intake side of the cross-flow fan 131 and an exhaust side space (exhaust passage) 191 on the exhaust side of the cross-flow fan 131.

[0043] Figure 13 is a longitudinal cross-sectional view showing the airflow in the air conditioner. When the air conditioner 100 is driven, indoor air is drawn into the intake space 190 from the upper opening 183, the lower opening 184, and the side opening 185. At this time, the air drawn in from the upper opening 183 is heated or cooled by passing near the heat radiation panel 400. In addition, since a recess 114 is formed in the lower part of the housing 110, air from below the air conditioner is also drawn in from the lower opening 184. Furthermore, since a side opening 185 is formed, a large amount of air is drawn into the intake space 190 not only from the top and bottom of the air conditioner 100, but also from the sides.

[0044] In this way, the air drawn into the housing 110 from the intake port 112 creates an airflow that flows into the front heat exchange section 141 and an airflow that enters the space between the lower heat exchange section 142 and the drain pan 150 (intake passage) and flows into the lower heat exchange section 142. In this embodiment, as described above, a large amount of air flows in from the lower opening 184, so a large amount of air also flows into the space between the lower heat exchange section 142 and the drain pan 150. Then, as the air passes through the front heat exchange section 141 and the lower heat exchange section 142, heat exchange takes place between the refrigerant in the front heat exchange section 141 and the lower heat exchange section 142 and the air, and the air is heated or cooled. The air is then sent to the exhaust side space 191 by the cross-flow fan 131.

[0045] In this embodiment, the lower guide member 160 is positioned such that the apex B of the cross-flow fan 131 is located above the flat portion 162, thereby increasing the cross-sectional area of ​​the exhaust space 191 downstream of the cross-flow fan 131. This allows for the delivery of a larger volume of air without increasing the rotational speed of the cross-flow fan 131.

[0046] The exhaust-side space 191 is formed by the inner wall surface of the guide spacer 500 and the lower guide member 160. In this embodiment, the apex of the cross-flow fan 131 is located higher than the rear end 164 of the lower guide member 160, so the height and cross-sectional area of ​​the exhaust-side space 191 immediately behind the cross-flow fan 131 are large. In the exhaust-side space 191, the top surface of the flow path space 501 of the guide spacer is curved so that it rises from rear to front, so the air sent by the cross-flow fan 131 is sent towards the outlet opening 512.

[0047] Because the pair of side walls 513B of the flow path space 501 are spaced further apart towards the front, the exhaust side space 191 widens towards the downstream. Also, because the inclined portion 161 of the lower guide member 160 is inclined upward toward the downstream, the exhaust side space 191 is lower in height in the portion corresponding to the inclined portion 161. Thus, although the height of the discharge opening 512 decreases toward the downstream, its width increases, resulting in little change in cross-sectional area. As a result, the air in the exhaust side space 191 flows smoothly toward the downstream. The air thus delivered is sent through the discharge opening 512 to the space 600 between the insulation panel 300 and the heat radiation panel 400.

[0048] <Mounting frame> Mounting frame Figure 14 is a perspective view from above showing the mounting frame. Figure 15 is a perspective view from below showing the mounting frame. In Figure 14, the lower left is the front and the upper right is the rear, while in Figure 15, the upper left is the front and the lower right is the rear. As shown in Figures 14 and 15, the mounting frame 200 has a rear frame member 201, a front frame member 202, and a pair of side frame members 203. In the rear frame member 201, the front frame member 202, and the side frame members 203, each side frame member 203 has a U-shaped cross-section with an opening at the bottom, and its front end is connected to the rear edges of both edges of the front frame member 202, and its rear end is connected to the front edges of both edges of the rear frame member 201.

[0049] Five engaging claws 204 are formed at predetermined intervals on the rear edge of the rear frame member 201. Each engaging claw 204 has a constant width and is L-shaped, extending rearward and bending downward when viewed from the side. The spacing between the engaging claws 204 is equal to the spacing between the engaging portions 511 of the guide spacer 500.

[0050] The mounting frame 200 is fitted with a pair of front mounting plates 210, a pair of intermediate spacer plates 220, an engagement pin 240, a pair of fixing plates 230, and a pair of rear spacer plates 250. The front mounting plates 210, intermediate spacer plates 220, fixing plates 230, and rear spacer plates 250 have their lower surfaces located below the rear frame member 201, the front frame member 202, and the side frame member 203, and function as spacers that form a gap between the mounting frame 200 and the insulation panel 300.

[0051] Figure 16 is an enlarged perspective view of the front mounting plate. As shown in Figure 16, the front mounting plate 210 is provided at the intersection of the front frame member 202 and the side frame member 203 and has a lateral extension 211 extending along the front frame member 202, a rear extension 212 extending from the lateral extension 211 along the side frame member 203, and an extension (first extension) 213 extending forward from the lateral extension 211. The extension 213 is formed in a trapezoidal shape such that its width narrows towards the front. The lower surface of the front mounting plate 210 is located below the lower edge of the mounting frame 200.

[0052] Figure 17 is an enlarged perspective view showing the intermediate spacer plate and engagement pin. As shown in Figure 17, the intermediate spacer plate 220 is located in front of the engagement pin 240 and, in the installed state, is positioned to meet the rear end of the front insulation panel 310, which will be described later. The lower surface of the intermediate spacer plate 220 is located below the lower edge of the mounting frame 200. The engagement pin 240 is a cylindrical rod and is located in the middle of each side frame member 203. The engagement pin 240 extends laterally so as to pass between both edges of the side frame member 203.

[0053] Figure 18 is an enlarged perspective view showing the fixing plate and the rear spacer plate. As shown in Figure 18, the fixing plate 230 is provided at the rear end of the side frame member 203. The fixing plate 230 has screw holes formed therein, which are used when fixing the magnet mounting member 370, which will be described later. The rear spacer plate 250 is provided at the intersection of the side frame member 203 and the rear frame member 201. The rear spacer plate 250 is T-shaped, and its lower surface is located below the lower edge of the mounting frame 200.

[0054] Mounting frame fixing method In the installed state, three of the five engaging claws 204 of the mounting frame 200 engage with the engaging portion 511 of the guide spacer 500. That is, the tips of the engaging claws 204 are positioned within the recess 511A of the air outlet frame 510. In this embodiment, three of the five engaging claws 204, excluding the ends, engage with the engaging portion 511 so that the center of the mounting frame 200 coincides with the center of the guide spacer 500. The mounting frame 200 is then fixed to the ceiling by passing screws through the mounting frame 200 at appropriate locations and tightening them to the ceiling. Since the front of the mounting frame 200 can be lifted and screwed in while the rear of the mounting frame 200 (the tips of the engaging claws 204) is hooked into the recess 511A of the air outlet frame 510, the installation can be performed by a single worker, improving workability.

[0055] Furthermore, it is not necessary to position the mounting frame 200 so that its center coincides with the center of the guide spacer 500. For example, the three rightmost of the five engaging claws 204 may be positioned to engage with the engaging portion 511 of the guide spacer 500. The number of engaging claws 204 on the mounting frame 200 is not limited to three, nor is the number of engaging portion 511 on the guide spacer 500 limited to five.

[0056] <Insulation Panel> As shown in Figures 2 and 3, the insulation panel 300 is composed of a front insulation panel 310 located at the front and a rear insulation panel 350 located between the front insulation panel 310 and the guide spacer 500.

[0057] Front insulation panel Figure 19 is a perspective view from above showing the front insulation panel. Figure 20 is a perspective view from below showing the front insulation panel. In Figures 19 and 20, the left side is the front and the right side is the rear. The front insulation panel 310 is made of a highly insulating material such as expanded polystyrene, and comprises a plate-shaped bottom portion 311 and a pair of side wall portions 312. The bottom portion 311 has flat front and back surfaces and is formed in a rectangular shape in plan view. The pair of side wall portions 312 extend vertically downward along the side edges of the bottom portion 311. Notches 313 are formed on the inner surface of the rear ends of the bottom portion 311 and the side wall portions 312. The notches 313 are formed by reducing the thickness of the side wall portions 312 and the bottom portion 311. A pair of openings 314 extending in the front-to-back direction are formed on both sides of the front of the front insulation panel 310.

[0058] Mounting hardware 330 is attached to both sides of the front of the front insulation panel 310. Figure 21 is a perspective view showing the configuration near the mounting hardware of the front insulation panel. The mounting hardware 330 comprises a front engaging member 331, a pair of upper mounting members 332, a pair of lower mounting members 333, and a front panel holding member 334.

[0059] The front engaging member 331 is formed by bending a rectangular piece of metal, and has a rectangular flat portion 331A, a pair of vertical portions 331B extending downward from both ends of the flat portion 331A, and a pair of base portions 331C extending laterally from each of the pair of vertical portions 331B. The front engaging member 331 is fixed to the pair of upper mounting members 332 by screwing each of the pair of base portions 331C to the front ends of the pair of upper mounting members 332.

[0060] The upper mounting member 332 has an upper part 332A and a lower part 332B. The upper part 332A and the lower part 332B are each rectangular parallelepipeds, with equal widths for the upper part 332A and the lower part 332B, and the length of the upper part being longer than the length of the lower part 332B.

[0061] The lower mounting member 333 has an upper part 333A and a lower part 333B. The upper part 333A and the lower part 333B are each rectangular parallelepipeds, with equal widths for the upper part 333A and the lower part 333B, and the length of the lower part 333B being longer than the length of the upper part 333A.

[0062] These upper mounting member 332 and lower mounting member 333 are preferably made of a material with high thermal insulation properties.

[0063] The front panel retaining member 334 includes a mounting portion 334A, a pair of lower side wall portions 334B, a pair of upper side wall portions 334C, and a pair of fixing portions 334D. The mounting portion 334A is rectangular in shape, elongated in the front-to-back direction, and has a notch 334E at its front end. The notch 334E is roughly V-shaped, and its inclination approaches the front-to-back direction towards the back.

[0064] The lower part of the side wall 334B is rectangular and extends upward from both sides of the mounting portion 334A. The upper part of the side wall 334C is rectangular and extends upward from the upper rear edge of the lower part of the side wall 334B. The length of the upper part of the side wall 334C in the depth direction is shorter than the length of the lower part of the side wall 334B. The fixing portion 334D is rectangular and bends from the upper part of the side wall 334C and extends horizontally outward. The length of the fixing portion 334D in the depth direction is equal to the length of the upper part of the side wall 334C. Furthermore, the fixing portion 334D of the front panel holding member 334, the lower part 332B of the upper mounting member 332, and the upper part 333A of the lower mounting member 333 have approximately equal width in the lateral direction and length in the depth direction. The front panel holding member 334 is fixed to the upper mounting member 332 and the lower mounting member 333 by sandwiching a pair of fixing parts 334D between the upper mounting member 332 and the lower mounting member 333, respectively. The upper mounting member 332 and the lower mounting member 333 are fixed together, for example, by screws.

[0065] Furthermore, the mounting hardware 330 is fixed to the front insulation panel 310 by positioning the upper mounting member 332 and the lower mounting member 333 within a pair of openings 314 in the front insulation panel 310, with the upper part 332A of the upper mounting member 332 and the lower part 333B of the lower mounting member 333 sandwiching the protrusions within the openings 314 of the front insulation panel 310. A closing insulation member 335, formed to match the cross-sectional shape of the openings 314, is attached to the lower side of the openings 314. The closing insulation member 335 is made of the same material as the front insulation panel 310.

[0066] With the mounting hardware 330 installed, the engaging member 331 is positioned on the upper surface of the front insulation panel 310, and a gap is formed between the flat portion 331A of the engaging member 331 and the front insulation panel 310. In addition, the front panel holding member 334 is positioned on the lower surface of the front insulation panel 310, and the mounting portion 334A extends forward beyond the front edge of the front insulation panel 310.

[0067] Rear insulation panel Figure 22 is a perspective view from above showing the rear insulation panel. Figure 23 is a perspective view from below showing the rear insulation panel. In Figures 22 and 23, the left side is the front and the right side is the rear.

[0068] The rear insulation panel 350 is made of a highly insulating material such as expanded polystyrene, and comprises a plate-shaped bottom portion 351 and a pair of side wall portions 352. The bottom portion 351 has flat front and back surfaces and is formed in a rectangular shape in plan view. The pair of side wall portions 352 extend vertically downward along the side edges of the bottom portion 351. Notches 353 are formed on the outer surfaces of the front ends of the bottom portion 351 and the side wall portions 352. The notches 353 are formed by reducing the thickness of the side wall portions 352 and the bottom portion 351. A pair of first openings 354 extending in the front-rear direction are formed on both sides of the front of the rear insulation panel 350. Extensions extending from the front, rear, left, and right are formed within the first openings 354. In addition, second openings 355 extending in the front-rear direction are formed on both sides of the rear of the rear insulation panel 350.

[0069] Furthermore, a mounting groove 356 is formed on the lower surface of the rear end of the rear insulation panel 350. The mounting groove 356 extends from both ends toward the center with a predetermined width in the depth direction. The rear insulation panel 350 also has a pair of rear wall members 357. The width of the pair of rear wall members 357 in the depth direction is equal to the width of the mounting groove 356. This allows the rear wall members 357 to be fitted into the mounting groove 356. When the insulation panel 300 is installed so that its left-right center coincides with the center of the air conditioner 100, the pair of rear wall members 357 are attached to each end of the pair of mounting grooves 356. When the insulation panel 300 is installed so that its left-right center is offset from the air conditioner 100, the rear wall members 357 are attached to one of the mounting grooves 356.

[0070] Additionally, mounting members 360 are attached to both sides of the front of the rear insulation panel 350. Figure 24 is a perspective view showing the configuration of the mounting hardware for the rear insulation panel. The mounting member 360 comprises a rear engaging member 361, a pair of mounting members 362, and a rear panel holding member 363. As shown in Figure 24, the rear engaging member 361 is formed by bending a plate-shaped metal fitting and has a rectangular flat portion 361A, an inclined portion 361B extending upward toward the rear from the center of the flat portion 361A, and a flat portion (second extension) 361C extending horizontally toward the rear from the rear end of the inclined portion 361B. The rear engaging member 361 is fixed to the pair of mounting members 362 by screwing both ends of the rear engaging member 361 to the front ends of the pair of mounting members 362.

[0071] The mounting member 362 has an upper part 362A and a lower part 362B. The upper part 362A and the lower part 362B are each rectangular parallelepipeds, with equal widths for the upper part 362A and the lower part 362B, and the length of the upper part being longer than the length of the lower part 362B.

[0072] The rear panel retaining member 363 includes a mounting portion 365, a lower side wall portion 364B, an upper side wall portion 364C, and a fixing portion 364D.

[0073] The lower part of the side wall 364B is rectangular in shape and extends in the front-rear direction. A mounting portion 365 is erected on the outer surface of the lower part of the side wall 364B. The upper part of the side wall 364C is rectangular and extends upward from the upper rear edge of the lower part of the side wall 364B. The length of the upper part of the side wall 364C in the depth direction is shorter than the length of the lower part of the side wall 364B. The fixing portion 364D is rectangular and bends from the upper part of the side wall 364C and extends horizontally inward. The length of the fixing portion 364D in the depth direction is equal to the length of the upper part of the side wall 364C. Furthermore, the fixing portion 364D of the rear panel holding member 363 and the lower part 362B of the mounting member 362 have approximately equal width in the lateral direction and length in the depth direction. The fixing portion 364D is screwed to the mounting member 362, thereby attaching the mounting portion 365 to the lower part of the outer mounting member 362.

[0074] The mounting portion 365 is made of a plate material extending in the front-rear direction and has a front flat portion 365A, a central inclined portion 365B, and a rear flat portion 365C. The front flat portion 365A extends horizontally in the front-rear direction when mounted. The central inclined portion 365B extends upward and inclined towards the rear from the rear end of the front flat portion 365A. The rear flat portion 365C extends horizontally in the front-rear direction when mounted. The front end edge 365D of the front flat portion 365A is bent upward, and the rear end edge 365E of the rear flat portion 365C is bent upward.

[0075] The mounting member 360 is fixed to the rear insulation panel 350 by fitting the mounting member 362 into the first opening 354. A closing insulation member 366, formed to match the cross-sectional shape of the first opening 354, is attached to the lower side of the first opening 354. The closing insulation member 366 is made of a highly insulating material, such as the same material as the rear insulation panel 350.

[0076] With the mounting member 360 attached, the rear engaging member 361 is positioned on the upper surface of the rear insulation panel 350. Additionally, the rear panel holding member 363 is positioned on the lower surface of the rear insulation panel 350, with the mounting portion 365 extending laterally.

[0077] Furthermore, in the installed state, magnet mounting members 370 are attached to the second opening 355 of the rear insulation panel 350. Figure 25 is a perspective view showing the configuration of the magnet mounting member 370. The magnet mounting member 370 comprises an upper mounting member 372, a lower mounting member 373, a magnet holding member 374, and a magnet 375.

[0078] The upper mounting member 372 has an upper part 372A and a lower part 372B. The upper part 372A and the lower part 372B are each rectangular parallelepipeds, with equal widths, and the length of the upper part 372A being longer than the length of the lower part 372B.

[0079] The lower mounting member 373 has an upper part 373A and a lower part 373B. The upper part 373A and the lower part 373B are each rectangular parallelepipeds, with equal widths for the upper part 373A and the lower part 373B, and the length of the lower part 373B being longer than the length of the upper part 373A.

[0080] These upper mounting member 372 and lower mounting member 373 are preferably made of a material with high thermal insulation properties.

[0081] The magnet holding member 374 is formed by bending a rectangular plate and has a mounting portion 374A, a vertical wall portion 374B, and a fixing portion 374C. The mounting portion 374A is rectangular in shape. The vertical wall portion 374B extends downward from the outer edge of the mounting portion 374A. The fixing portion 374C extends horizontally to the side from the lower edge of the vertical wall portion 374B. A magnet 375 is attached to the lower surface of the fixing portion 374C.

[0082] The mounting portion 374A, the lower part 372B of the upper mounting member 372, and the upper part 373A of the lower mounting member 373 have approximately equal width in the lateral direction and length in the depth direction. With the mounting portion 374A sandwiched between the lower part 372B of the upper mounting member 372 and the upper part 373A of the lower mounting member 373, the upper mounting member 372 and the lower mounting member 373 are fixed together with screws, thereby integrating the upper mounting member 372, the lower mounting member 373, and the magnet holding member 374. Furthermore, a through hole 376 is formed that penetrates the upper mounting member 372, the lower mounting member 373, and the magnet holding member 374.

[0083] How to install insulation panels The rear insulation panel 350 is installed as follows: First, the rear end of the bottom portion 351 is positioned so that it rests on the upper surface of the air outlet frame 510 of the guide spacer 500. Then, the rear engaging member 361 of the mounting member 360 engages with the engaging pin 240 of the mounting frame 200, and the mounting member 360 is pushed backward so that the flat portion 361C is supported by the engaging pin 240. Next, the magnet holding member 374 is placed inside the second opening 355 and the screw is tightened through the through hole 376. The tip of the screw is tightened to the fixing plate 230 of the mounting frame 200. This restricts the forward and backward movement of the rear insulation panel 350 relative to the mounting frame 200. Since the rear end of the bottom portion 351 is placed on the upper surface of the air outlet frame 510 of the guide spacer 500 before the engaging member 361 and the engaging pin 240 engage, the installation can be easily performed by a single worker.

[0084] In this manner, the rear insulation panel 350 is mounted by hooking the flat portion 361C of the rear engaging member 361 onto the laterally extending rod-shaped engaging pin 240, and its rear end is secured and held by being locked to the upper part of the air outlet of the guide spacer 500. At this time, in front of the rear insulation panel 350, because the rear engaging member 361 is hooked onto the rod-shaped engaging pin 240, the rear insulation panel 350 is suspended, and a gap is formed between it and the lateral frame member 203. Furthermore, since the intermediate spacer plate 220 and the pair of rear spacer plates 250 are attached to the lower surface of the mounting frame 200, it is guaranteed that a gap is formed between the rear insulation panel 350 and the lateral frame member 203 and rear frame member 201 of the mounting frame 200.

[0085] The front insulation panel 310 is installed as follows. First, the front insulation panel 310 is positioned so that the rear notch 313 of the front insulation panel 310 engages with the front notch 353 of the rear insulation panel 350. Then, the rear insulation panel 350 is moved so that the extension 213 of the front mounting plate 210 of the mounting frame 200 fits below the front engaging member 331 of the front insulation panel 310. In other words, the front notch 353 of the rear insulation panel 350 is hooked into the rear notch 313 of the front insulation panel 310, and then the engaging member 331 and the front mounting plate 210 are engaged. This allows even a single worker to easily perform the installation work. Furthermore, with this mounting structure, the rear of the front insulation panel 310 engages with the front of the rear insulation panel 350, and the front engaging member 331 hooks onto the extension 213, forming a mounting portion which holds the panel in place. In this configuration, the rear insulation panel 350 is spaced apart from the mounting frame 200, and the rear notch 313 of the front insulation panel 310 is engaged with the front notch 353 of the rear insulation panel 350, so the rear of the front insulation panel 310 is spaced apart from the mounting frame 200. Furthermore, at the front of the front insulation panel 310, the engaging member 331 is hooked onto the extension 213, so the front insulation panel 310 is suspended, and the front insulation panel 310 is spaced apart from the mounting frame 200. In addition, since the upper surface of the front insulation panel 310 and the lower surface of the intermediate spacer plate 220 are located below the front frame member 202 and the side frame member 203, it is guaranteed that a gap will be formed between the front insulation panel 310 and the side frame member 203 and the front frame member 202 of the mounting frame 200.

[0086] In this embodiment, the mounting portion is configured by hooking the rear engaging member 361 onto the engaging pin 240 in front of the rear insulation panel 350, but the engaging member may be hooked onto the engaging pin in front of the front insulation panel 310. Also, in this embodiment, the mounting portion is configured by hooking the engaging member 331 onto the extension portion 213 in front of the front insulation panel 310, but the engaging member may be hooked onto the extension portion in front of the rear insulation panel 350.

[0087] Thus, in this embodiment, the heat insulating panel 300 is suspended at its front and middle sections, and at the middle and rear sections, a pair of intermediate spacer plates 220 and a pair of rear spacer plates 250 are interposed between the heat insulating panel 300 and the mounting frame 200, so that it is held at a distance from the mounting frame 200.

[0088] <Radiating panel> Figure 26 is a top-down perspective view showing the thermal radiation panel. In Figure 26, the upper right is the rear and the lower left is the front. Figure 27 is a top-down view of the thermal radiation panel. Figure 28 is a view of the thermal radiation panel in a folded state. The thermal radiation panel 400 has a frame 410 and a radiating cloth 450 that surrounds the frame 410.

[0089] Figure 29 shows the configuration of the frame of the heat radiation panel. In Figure 29, the upper right is the rear and the lower left is the front. Frame 410 includes a front frame 420 and a rear frame 430. The front frame 420 has a first transverse frame member 421 extending laterally in the front, a second transverse frame member 422 extending laterally in the rear, and five front vertical frame members 423 provided between the first transverse frame member 421 and the second transverse frame member 422. The front frame 420 is roughly rectangular, and the corners between the left and right outer front vertical frame members 423 and the first transverse frame member 421 are arc-shaped.

[0090] The rear frame 430 has a third transverse frame member 431 extending laterally forward, a fourth transverse frame member 432 extending laterally rearward, and five rear vertical frame members 433 provided between the third transverse frame member 431 and the fourth transverse frame member 432. The rear frame 430 is roughly rectangular in shape, and the corners between the left and right outer rear vertical frame members 433 and the fourth transverse frame member 432 are arc-shaped.

[0091] The second transverse frame member 422 of the front frame 420 and the third transverse frame member 431 of the rear frame 430 are rotatably connected. The rear frame 430 is rotatable such that its rear end is lower relative to the front frame 420.

[0092] Retaining pins 424 are attached to the front of the second pair of front vertical frame members 423 from the left and right of the front frame 420. Figure 30 is a magnified perspective view showing the retaining pins of the frame of the heat radiation panel. As shown in Figure 30, the retaining pins 424 are erected on the upper surface of the front vertical frame members 423. The retaining pins 424 have a cylindrical portion 424A and a head 424B formed at the tip of the cylindrical portion 424A, which has a larger diameter than the cylindrical portion 424A.

[0093] Furthermore, a pair of mounting brackets 425 are attached to the second transverse frame member 422 of the front frame 420. The mounting bracket 425 has a base portion 425A, an inclined portion 425B, a flat portion 425C, a pair of side wall portions 425D, and a retaining pin 425E. The base portion 425A is rectangular and fixed to the second transverse frame member 422. The inclined portion 425B extends diagonally downward toward the rear from the rear end of the base portion 425A. The flat portion 425C extends toward the rear from the lower end of the inclined portion 425B. The pair of side wall portions 425D are erected on both edges of the flat portion 425C and extend upward. The retaining pin 425E is cylindrical and spans between the pair of side wall portions 425D, protruding toward the center.

[0094] Furthermore, suction fittings 435 are provided at the rear of each of the second pair of rear vertical frame members 433 from the left and right of the rear frame 430. Figure 31 is an enlarged view of the suction fittings of the frame of the heat radiation panel. The suction fitting 435 has a side wall portion 435A and a flat portion 435B. The lower part of the side wall portion 435A is fixed to the outer side of the rear vertical frame member 433 and extends upward. The flat portion 435B extends horizontally to the side from the upper end of the side wall portion 435A.

[0095] The radiant cloth 450 is bag-shaped and can accommodate the frame 410 inside. The radiant cloth 450 is shaped to cover the perimeter of the bottom and top surfaces of the frame 410. With the radiant cloth 450 attached, the retaining pins 424, mounting hardware 425, and suction hardware 435 are exposed.

[0096] The heat radiation panel 400 can be attached to the insulation panel 300 in the following manner.

[0097] First, with the heat radiation panel 400 bent so that the front frame 420 and the rear frame 430 overlap, a pair of retaining pins 425E are placed on the front flat portion 365A of the mounting portion 365 of the rear insulation panel 350. In this state, the front of the front frame 420 is lifted and moved towards the rear. This guides the retaining pin 424 into the notch 334E of the front panel retaining member 334 of the front insulation panel 310. As a result, the retaining pin 424 enters the back of the notch 334E of the front panel retaining member 334, and the bottom surface of the head 424B of the retaining pin 424 contacts the upper surface of the mounting portion 334A of the front panel retaining member 334. At the same time, the retaining pin 425E moves along the central inclined portion 365B of the mounting member 360 and is positioned on the rear flat portion 365C. Then, the rear frame 430 of the heat radiation panel 400 is rotated relative to the front frame 420 until it is horizontal. As a result, the suction fitting 435 of the rear frame 430 is attracted to and held by the magnet 375 attached to the magnet mounting member 370 of the rear insulation panel 350. This allows the heat radiation panel 400 to be attached to the insulation panel 300.

[0098] <Effects and Effects of This Embodiment> According to this embodiment, the following effects are achieved. According to this embodiment, the apex of the cross-flow fan 131 of the cross-flow fan unit 130 is located higher than the rear end of the lower guide member 160. The amount of air blown by the cross-flow fan unit 130 depends on the size of the space downstream of the cross-flow fan 131. According to this embodiment, since the apex of the cross-flow fan 131 of the cross-flow fan unit 130 is located higher than the rear end of the lower guide member 160, a large exhaust space 191 can be secured downstream of the cross-flow fan 131. As a result, a larger amount of air can be passed through the heat exchange unit 140 and discharged without increasing the rotation speed of the cross-flow fan 131 compared to conventional designs, and sufficient heating and cooling performance can be ensured even with a low-height air conditioner. In addition, since a large amount of air can be sent without increasing the rotation speed of the cross-flow fan 131, the rotation noise of the cross-flow fan can be suppressed, and heating and cooling performance can be improved while ensuring quiet operation.

[0099] Furthermore, according to this embodiment, the central axis of the cross-flow fan 131 of the cross-flow fan unit 130 is located above the center of the air conditioner 100 in the height direction. By raising the position of the cross-flow fan unit 130 in this way, it is possible to lower the height of the air conditioner while securing a sufficiently large exhaust space 191 downstream of the cross-flow fan 131.

[0100] According to this embodiment, the exhaust passage (exhaust side space 191) decreases in height and widens towards the downstream side. As a result, the reduction in the cross-sectional area of ​​the exhaust passage is suppressed, so that the exhaust from the air conditioner 100 can be diffused over a wide area of ​​the heat radiation panel 400 without a reduction in exhaust flow rate.

[0101] According to this embodiment, the lower guide member 160 is located on the rear side and includes a flat portion 162 of a certain height and an inclined portion 161 that is continuous with the flat portion 162 and slopes upward, with the height of the exhaust passage (exhaust side space 191) decreasing downstream in the inclined portion 161. This ensures a sufficient cross-sectional area of ​​the intake passage and increases the height of the intake side space 190 in front of the cross-flow fan unit 130, allowing the heat exchange unit 140 to be installed in a wider area.

[0102] According to this embodiment, the guide spacer 500 has a pair of side walls 513A and 513B that define both sides of the exhaust passage, and the distance between the pair of side walls 513A and 513B widens toward the downstream side. As a result, even if the height of the exhaust passage is reduced, a sufficient cross-sectional area of ​​the exhaust passage can be secured, and the exhaust from the air conditioner 100 can be diffused over a wide area of ​​the heat radiation panel 400.

[0103] According to this embodiment, the heat exchange unit 140 includes a front heat exchange section 141 provided in front of the cross-flow fan unit 130 and inclined forward toward upward, and a lower heat exchange section 142 provided below the cross-flow fan unit 130.

[0104] This allows for a larger surface area of ​​the heat exchanger even in the limited volume of the intake side space 190, thereby increasing the contact area between the air and the heat exchanger.

[0105] Furthermore, according to this embodiment, the height of the air conditioning system 700 is 30 cm or less. In a typical house or apartment, the indoor unit of a non-radiative air conditioner is installed within a range of about 30 cm from the ceiling to the bottom of the beam. However, according to this embodiment, the air conditioning system 700 for a radiant heating and cooling system can be installed within the same range from the ceiling to the bottom of the beam as the indoor unit of a non-radiative air conditioner. [Explanation of symbols]

[0106] 1: Radiant heating and cooling system 100:Air conditioner 110: Cabinet 111: Filter 112: Air intake 113: Bottom 114: Recess 115: Air outlet 117: Arc section 130: Cross-flow fan unit 131: Cross-flow fan 140: Heat exchange unit 141: Front heat exchange section 142: Lower heat exchange section 150: Drain pan 160: Lower guide member 161: Inclined part 162: Flat part 163 :Downward extension part 170: Cover 171: Front panel 171A: Downward curved section 171B: Upper curved section 172: Side panel 173: Support member 174: Arm 180: Installation components 181: Main unit 182: Air conditioner engagement part 182A: Lower engagement part 182B: Lower engagement part 183: Upper opening 183A: Side engaging part 183B: Side engaging part 184 :Downward opening 185: Side opening 190: Intake side space 190A: Left spacer 190B: Right spacer 191: Exhaust side space 191A: Proximal end 191B: Proximal end 192A: Front part 192B: Front part 193A: Upper part 193B: Top 200: Mounting frame 201: Rear frame member 202: Front frame member 203: Side frame member 204: Engaging claw 210: Front mounting plate 211: Yokonobe 212: Lateral part 213: Extension part 220: Intermediate spacer plate 230: Fixing plate 240: Engaging pin 250: Rear spacer plate 300: Insulation panel 310: Front insulation panel 311: Bottom part 312: Side wall section 313: Notch 314: Opening 330: Mounting hardware 331: Engaging member 331A: Flat part 331B: Vertical section 331C: Base 332: Upper mounting member 332A :Top 332B: Bottom 333: Lower mounting member 333A :Top 333B: Bottom 334: Front panel retaining member 334A: Mounting part 334B: Lower part of the side wall 334C: Upper side wall 334D:Fixed part 334E: Notch 335: Closure insulation member 350: Rear insulation panel 351: Bottom part 352: Side wall section 353: Notch 354: First opening 355: Second opening 356: Mounting groove 357: Rear wall member 360: Mounting parts 361: Engaging member 361A: Flat part 361B: Inclined part 361C: Flat part 362: Mounting components 362A: Top 362B :Bottom 363: Rear panel retaining member 364B: Lower side wall 364C: Upper side wall 364D:Fixed part 365: Mounting part 365A:Anterior flat area 365B: Central slope 365C: Posterior flat area 365D: Front edge 365E: Rear edge 366: Closure insulation member 370: Magnetic mounting component 372: Upper mounting member 372A: Top 372B: Lower part 373: Lower mounting member 373A: Upper 373B: Bottom 374: Magnet holding member 374A: Mounting part 374B: Vertical wall section 374C:Fixed part 375: Magnet 376: Through hole 400: Thermal radiation panel 410: Frame 420: Front frame 421: First horizontal frame material 422: Second horizontal frame material 423: Front vertical frame material 424: Retaining pin 424A: Cylindrical section 424B: Head 425: Mounting hardware 425A: Base 425B: Inclined part 425C: Flat part 425D: Side wall part 425E: Retaining pin 430: Rear frame 431: Third horizontal frame material 432: Fourth horizontal frame material 433: Rear vertical frame material 435: Adhesive metal fittings 435A: Side wall part 435B: Flat part 450: Radiation cloth 500: Guide Spacer 501: Flow channel space 502: Bottom opening 510: Speech bubble frame 511: Engaging part 511A: Recess 512: Outlet opening 513A: Side wall 513B: Side wall 514: Rear 515: Front 520: Spacer body 600: Space 700: Air conditioning system A: Central axis B: Vertex

Claims

1. In an air conditioning system for a radiant heating and cooling system, It is an air conditioner, An air intake is formed on the front, and the housing has an opening above the air intake, A cross-flow fan unit is arranged inside the aforementioned enclosure, A heat exchange unit positioned on the intake side of the cross-flow fan unit, An air conditioner including a lower guide member that defines the bottom surface of an exhaust passage that sends the air discharged from the housing forward, The enclosure comprises an upper guide member provided on the upper part of the enclosure, which guides the air discharged from the top of the enclosure forward and defines the upper surface of the exhaust passage, The apex of the cross-flow fan of the cross-flow fan unit is positioned higher than the rear end of the lower guide member. Air conditioning system.

2. The central axis of the cross-flow fan of the cross-flow fan unit is located above the center of the air conditioner in the height direction. The air conditioning system according to claim 1.

3. The aforementioned exhaust passage decreases in height and widens towards the downstream direction. The air conditioning system according to claim 1.

4. The lower guide member is Located on the rear side, with a rear flat section of a certain height, A sloping section that is continuous with the front of the aforementioned rear flat section and slopes upward, Equipped with, In the aforementioned inclined section, the height of the exhaust passage decreases toward the downstream direction. The air conditioning system according to claim 3.

5. The upper guide member has a pair of side walls that define both sides of the exhaust passage, The distance between the pair of side walls widens towards the downstream side. The air conditioning system according to claim 1.

6. The heat exchange unit is provided in front of the cross-flow fan unit and includes a first heat exchange section that is inclined forward toward upward, Includes a second heat exchange section provided below the cross-flow fan unit, The air conditioning system according to claim 1.

7. The height of the aforementioned air conditioning system is 30 cm or less. An air conditioning system according to any one of claims 1 to 6.

8. Insulation material installed along the ceiling, A heat radiation panel positioned below the aforementioned insulation material, An air conditioning system according to claim 1, wherein air is supplied between the thermal insulation material and the heat radiation panel, Equipped with, Radiant heating and cooling system.

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