Indoor unit of air conditioner

Abstract

Provided is an air-conditioning indoor unit capable of improving the cleanliness of a fan. An air-conditioning indoor unit according to one embodiment of the present invention is provided with: an indoor unit main body having a suction port and a discharge port; and a fan which is provided inside the indoor unit main body and generates an air flow from the suction port to the discharge port, the indoor unit main body having: a main body frame which has an opening and accommodates the fan; and a blow-out side frame that is attachable to and detachable from the opening of the main body frame, the blow-out side frame having an air supply port that constitutes a downstream air supply path formed from the fan to the blow-out port in a state in which the blow-out side frame is attached to the opening, and the blow-out side frame having an air supply port that forms a downstream air supply path formed from the fan to the blow-out port in a state in which the blow-out side frame is attached to the opening. The air supply port includes a tongue portion of the stabilizer and a downstream side portion of the rear air deflector.

Description

TECHNICAL FIELD

[0001] The present application relates to an air-conditioning indoor unit. This application claims priority based on Japanese Patent Application No. 2023-136144 filed on August 24, 2023, the contents of which are hereby incorporated by reference. BACKGROUND

[0002] For example, Patent Literature 1 discloses an air-conditioning indoor unit in which a wind direction adjusting unit is attached to and detached from a housing in a detachable manner.

[0003] PRIOR ART DOCUMENTS PATENT LITERATURE Japanese Patent Application Publication No. 2018-48791 SUMMARY PROBLEMS TO BE SOLVED BY THE INVENTION In the air-conditioning indoor unit described above, for example, when the fan is cleaned through the blowout port, since a wall surface that constitutes a downstream side air supply path formed from the fan to the blowout port blocks a part of the fan, the fan cannot be sufficiently cleaned at times.

[0004] Therefore, one embodiment of the present application aims to provide, for example, an air-conditioning indoor unit capable of improving fan cleanability.

[0005] SOLUTION TO PROBLEM An air-conditioning indoor unit according to one embodiment of the present application includes: an indoor unit main body having a suction port and a blowout port; a fan provided inside the indoor unit main body to generate an airflow from the suction port to the blowout port, the indoor unit main body having: a main body frame having an opening portion and housing the fan; and a blowout side frame that is attachable to and detachable from the opening portion of the main body frame, the blowout side frame having an air supply port that, in a state of being attached to the opening portion, constitutes a downstream side air supply path formed from the fan to the blowout port, the air supply port including a tongue portion of a stabilizer and a downstream side portion of a rear air deflector. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 is a perspective view of an indoor unit.

[0007] Figure 2 is a side sectional view of an indoor unit.

[0008] Figure 3 is a perspective view of an indoor unit main body in a state in which a blowout side frame is removed.

[0009] Figure 4 is a side sectional view of an indoor unit main body in a state in which a blowout side frame is removed.

[0010] Figure 5 is a perspective view when the blowout side frame is viewed from the outside.

[0011] Figure 6 is a perspective view of the blow-out side frame when viewed from the inner side.

[0012] Figure 7 is a side sectional view of the indoor unit main body showing a state in which the blow-out side frame is supported in a rotatable manner.

[0013] Figure 8 is a perspective view of a support portion of the main body frame.

[0014] Figure 9 is a side sectional view of the support portion of the main body frame.

[0015] Figure 10 is a sectional view of a claw portion of the blow-out side frame.

[0016] Figure 11 is a sectional view of a third wall of the main body frame.

[0017] Figure 12 is a sectional view of the indoor unit of the fan.

[0018] Figure 13 is a sectional view of the indoor unit showing a state in which the first fan is removed.

[0019] Figure 14 is a side view of a first face of the first fan.

[0020] Figure 15 is a side view of a second face of the second fan.

[0021] Figure 16 is a side view showing a state in which the first link plate and the second link plate are connected.

[0022] Figure 17 is a front surface diagram of a bearing member.

[0023] Figure 18A is a schematic front view of the indoor unit main body showing a state in which the first fan is installed.

[0024] Figure 18B is a schematic front view of the indoor unit main body showing a state in which the first fan is pushed in one direction in a state in which connection of the first fan and the second fan is released.

[0025] Figure 18C is a schematic front view of the indoor unit main body showing a state in which one end of the first fan is tilted. DETAILED DESCRIPTION

[0026] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Furthermore, in this specification and the accompanying drawings, the same or equivalent elements are labeled with the same reference numerals, and repeated descriptions are omitted. Additionally, illustrations of elements not directly related to the present invention are sometimes omitted. Moreover, the forms of the constituent elements shown in this embodiment are merely examples and are not limited to these forms.

[0027] The air conditioner described in this invention is a split-type unit, consisting of an indoor unit 100 and an outdoor unit. The indoor unit 100 houses an indoor heat exchanger 115 and a fan 200, while the outdoor unit houses a compressor, a four-way valve, an outdoor heat exchanger, a fan, and a throttling device. The indoor unit 100 and the outdoor unit are connected via refrigerant piping to form a refrigeration cycle, performing various operating modes such as cooling, heating, and dehumidification.

[0028] Reference Figure 1 and Figure 2 The following is a summary description of the indoor unit 100 of the air conditioner according to an embodiment of the present invention. Figure 1 This is a 3D view of the indoor unit 100. Figure 2 This is a side sectional view of the indoor unit 100. Figure 2 The illustration of the air guide plate 114 is omitted. The indoor unit 100 heats, cools, or dehumidifies the air in the space where it is installed. Hereinafter, the wall side of the room where the indoor unit 100 is installed will be defined as the rear side, and the opposite side will be defined as the front side. The ceiling side of the space where the indoor unit 100 is installed will be defined as the upper side, and the opposite side will be defined as the lower side.

[0029] The indoor unit 100 has an indoor unit body 110 that houses various structures inside. The indoor unit body 110 has a generally box-shaped shape with the left-right direction as its long side. An intake 111 is formed on the top of the indoor unit body 110. The indoor unit body 110 is provided with a filter 112 that covers the intake 111 from the inside. The filter 112 is, for example, a dust collection filter that captures dust in the passing air.

[0030] An air outlet 113 is formed on the lower part of the indoor unit body 110. The air outlet 113 is roughly rectangular with the left and right directions as its long sides. The indoor unit body 110 is provided with an air guide plate 114 that covers the air outlet 113 from the outside. The air guide plate 114 is configured to rotate and open and close the air outlet 113.

[0031] The air guide plate 114 includes: a first air guide plate 114a at the front of the opening / closing outlet 113; and a second air guide plate 114b at the rear of the opening / closing outlet 113. The first air guide plate 114a is configured to rotate about a rotation axis S1 located at its front end via a drive motor (not shown). By rotating about the rotation axis S1, the first air guide plate 114a can change the direction of the air blown from the outlet 113. The second air guide plate 114b is configured to rotate about a rotation axis S2 via a drive motor (not shown). By rotating about the rotation axis S2, the second air guide plate 114b can change the direction of the air blown from the outlet 113. The first air guide plate 114a and the second air guide plate 114b are detachable from the indoor unit body 110.

[0032] The indoor unit body 110 has an air supply path P that connects the intake port 111 and the outlet port 113. In the air supply path P, a heat exchanger 115 and a fan 200 are arranged sequentially from the intake port 111 to the outlet port 113.

[0033] The heat exchanger 115 is positioned upstream of the fan 200 in the direction of airflow. The heat exchanger 115 is arranged in a mountain-shaped configuration, surrounding the upper side of the fan 200. The heat exchanger 115 functions as a condenser during heating operation and as an evaporator during cooling operation.

[0034] Fan 200 is, for example, a cross-flow fan. Fan 200 is configured with its long side facing left to right. Fan 200 is driven by motor 210 (see reference). Figure 12 ), with the output shaft 210a of motor 210 (refer to Figure 12 The airflow is generated from the inlet 111 to the outlet 113 by rotating around the center of rotation.

[0035] In the above configuration, the indoor unit 100 drives the fan 200 to rotate via the motor 210. Air drawn in through the intake 111 passes through the filter 112 and undergoes heat exchange in the heat exchanger 115. After being heated or cooled, the air is blown out through the outlet 113. Furthermore, the air blown out from the outlet 113 is guided to the desired direction by the air guide plate 114.

[0036] For example, the air supply path P is configured such that the air drawn in from the intake port 111 is guided downwards and then generally forward and downwards towards the outlet port 113. In the air supply path P, the upstream air supply path from the intake port 111 to the fan 200 is called the first air supply path P1, and the downstream air supply path from the fan 200 to the outlet port 113 is called the second air supply path P2.

[0037] The first air supply path P1 is, for example, the upper space within the indoor unit body 110, bounded by the fan 200. A filter 112 and a heat exchanger 115 are installed in the first air supply path P1. The second air supply path P2 is, for example, the lower space within the indoor unit body 110, bounded by the fan 200.

[0038] The second air supply path P2 is a space surrounded by a rear air guide plate 120 located on the back side of the second air supply path P2, a stabilizer 130 located on the front side of the second air supply path P2, and a pair of side walls 140 arranged on the left and right.

[0039] The rear air guide vane 120 is a wall surface that guides air toward the outlet 113. The rear air guide vane 120 is located behind the fan 200. Except for its upstream end, the rear air guide vane 120 is curved, gradually moving away from the outer peripheral surface of the fan 200 from the upstream side to the downstream side. The rear air guide vane 120 extends in a left-right direction over approximately the entire width of the fan 200. The downstream end of the rear air guide vane 120 is the rear edge of the outlet 113.

[0040] The stabilizer 130 divides the airflow path into a first airflow path P1 and a second airflow path P2. The stabilizer 130 protrudes into the interior of the indoor unit body 110 from the leading edge of the outlet 113 toward the vicinity of the outer periphery of the fan 200. The stabilizer 130 is formed to extend in the left-right direction to approximately the entire width of the fan 200. The downstream end of the stabilizer 130 is the leading edge of the outlet 113.

[0041] The stabilizer 130 has: a guide 131 that directs air flowing toward the outlet 113; and a tongue 132 for stabilizing vortices generated near the outer periphery of the fan 200.

[0042] The guide section 131 is a wall surface that guides air toward the outlet 113. The guide section 131 is, for example, a flat surface that extends obliquely downward toward the outlet 113.

[0043] The tongue 132 includes: a relative portion 132a that is opposite to the outer periphery of the fan 200; and a curved portion 132b that connects the relative portion 132a and the upstream end of the guide portion 131.

[0044] A pair of side walls 140 are opposing walls spaced apart in the left-right direction. Each side wall 140 is an inner side surface of the indoor unit body 110. The rear air guide plate 120 and the stabilizer 130 are configured to extend from one side wall 140 to the other side wall 140. The downstream end of each side wall 140 is the side edge of the air outlet 113.

[0045] use Figure 3 and Figure 4 The main frame 150 and the blow-out side frame 160 that constitute the indoor unit body 110 will be described.Figure 3 This is a perspective view of the indoor unit body 110 with the blow-out side frame 160 removed. Figure 4 This is a side sectional view of the indoor unit body 110 with the blow-out side frame 160 removed. Figure 3 and Figure 4 The indoor unit body 110 shows the state of the air guide plate 114 being removed. Figure 3 and Figure 4 The illustration of the upper part of the indoor unit body 110 is omitted.

[0046] like Figure 3 and Figure 4 As shown, the indoor unit body 110 has a main frame 150 and an exhaust side frame 160. The main frame 150 is a main side frame that houses the heat exchanger 115 and the fan 200, etc. The exhaust side frame 160 is an exhaust side frame that can be installed and removed relative to the main frame 150.

[0047] The main frame 150 has an opening 150a. The opening 150a is an opening formed in the main frame 150 from the fan 200 in a predetermined direction. The predetermined direction is the direction relative to the air outlet 113 of the fan 200, which is approximately downward in this embodiment.

[0048] The blow-out side frame 160 is detachably mounted on the opening 150a of the main frame 150. The blow-out side frame 160 is, for example, a rectangular frame. The blow-out side frame 160 has an air outlet 160a surrounded by its frame. With the blow-out side frame 160 mounted on the opening 150a of the main frame 150, the air outlet 160a communicates with the opening 150a. The air outlet 160a is located inside the opening 150a and together with the opening 150a, forms a second air supply path P2. That is, the second air supply path P2 is composed of the opening 150a and the air outlet 160a.

[0049] like Figure 4 As shown, the air outlet 160a is formed by including at least the tongue 132 of the stabilizer 130 and the downstream side portion 120a of the rear air guide plate 120. In this embodiment, the air outlet 160a is formed by including the tongue 132 of the stabilizer 130, a part of the guide portion 131 of the stabilizer 130 (the upstream end), the downstream side portion 120a of the rear air guide plate 120, and a part of each sidewall 140. That is, the air outlet 160a is continuously formed in the circumferential direction of the second air supply path P2.

[0050] The downstream portion 120a of the rear air guide plate 120 includes, for example, the portion that overlaps with the fan 200 when viewed from the side of the air outlet 113 (lower side). In addition, the downstream portion 120a of the rear air guide plate 120 is not limited to the above configuration, as long as it includes at least the downstream end of the rear air guide plate 120.

[0051] As described above, the indoor unit body 110 can be detached from the main body frame 150 by allowing the blow-out side frame 160, which forms part of the second air supply path P2, to separate the tongue 132 in the stabilizer 130 and the downstream side portion 120a in the rear air guide plate 120. Specifically, the blow-out side frame 160 has the tongue 132 in the stabilizer 130 and the downstream side portion 120a in the rear air guide plate 120, while the main body frame 150 has the guide portion 131 in the stabilizer 130 and the upstream side portion 120b in the rear air guide plate 120. Thus, by removing the blow-out side frame 160 from the main body frame 150, the opening area from the fan 200 to the air outlet 113 can be increased, and components that easily become obstructions when approaching the fan 200 from the air outlet 113 can be removed, thereby improving the cleanliness of the fan 200.

[0052] The following uses Figure 4 The composition of the main frame 150 is explained.

[0053] like Figure 4 As shown, the opening 150a has: a first wall 151 located outside the tongue 132 of the blow-out side frame 160 when the blow-out side frame 160 is installed; a second wall 152 located outside the rear air guide plate 120 (downstream side portion 120a) of the blow-out side frame 160 opposite to the first wall 151; and a pair of third walls 153 opposite to each side wall 140 of the blow-out side frame 160.

[0054] The first wall 151 is a wall surface that extends substantially upward from the guide portion 131 of the main frame 150. When the blow-out side frame 160 is installed on the main frame 150, the tongue 132 is located inside the first wall 151. In this state, the guide portion 131 of the main frame 150 and the guide portion 131 of the blow-out side frame 160 are substantially flush. A drain pan 115a is provided at the upper front of the first wall 151 to receive condensate from the heat exchanger 115.

[0055] The second wall 152 is formed as a rearwardly recessed wall surface. When the blow-out side frame 160 is installed on the main frame 150, the rear air guide plate 120 (downstream side portion 120a) is located inside the second wall 152. In this state, the upstream side portion 120b of the main frame 150 and the downstream side portion 120a of the blow-out side frame 160 are approximately flush.

[0056] The third wall 153 is formed as an outwardly recessed wall surface. When the blow-out side frame 160 is installed on the main frame 150, the side wall 140 of the blow-out side frame 160 is located inside the third wall 153. In this state, the side wall 140 of the main frame 150 and the side wall 140 of the blow-out side frame 160 are approximately flush.

[0057] With the blow-out side frame 160 removed from the main frame 150, the distance between the first wall 151 and the second wall 152 is greater than the diameter of the fan 200. Therefore, the fan 200 can be removed to the outside of the indoor unit body 110 through the opening 150a.

[0058] Furthermore, by arranging the first wall 151 and the second wall 152 to not overlap with the fan 200 in the direction relative to the outlet 113 of the fan 200 (vertical direction in this embodiment), the front and rear ends of the fan 200 are not obstructed and are exposed when the fan 200 is observed through the opening 150a, thus improving accessibility to the fan 200. Therefore, for example, it is possible to hold the fan 200 with one hand, rotate it appropriately, and clean the outer periphery of the fan 200 with the other hand, thereby improving the cleanliness of the fan 200.

[0059] The following uses Figure 5 and Figure 6 The structure of the blow-out side frame 160 is explained. Figure 5 This is a three-dimensional view of the side frame being blown out at 160 degrees from the outside. Figure 6 This is a three-dimensional view of the side frame being blown out at 160 degrees from the inside.

[0060] like Figure 5 and Figure 6 As shown, the blow-out side frame 160 has a tongue 132 (front frame), a downstream side portion 120a of the rear air guide plate 120 (rear frame), a side wall 140 (left frame), and another side wall 140 (right frame).

[0061] The side frame 160 is equipped with an airflow direction changing unit 121. The airflow direction changing unit 121 changes the direction of the air blown from the outlet 113 left and right. The airflow direction changing unit 121 changes the direction of the air blown from the outlet 113 left and right by causing multiple airflow vanes 122 arranged side by side on the rear air guide plate 120 to swing left and right in a coordinated manner.

[0062] A flange 161 is provided on another side wall 140 (right frame) to cover the motor 210 of the fan 200 from the outside. The flange 161 is a plate-shaped member extending to the right from the other side wall 140. When the blow-out side frame 160 is installed on the main frame 150, the flange 161, by covering the motor 210 of the fan 200 from the outside, can divide the air supply section and the motor 210 housing section within the indoor unit body 110, thereby improving the airtightness of the second air supply path P2. In addition, when the blow-out side frame 160 is installed on the main frame 150, the flange 161 serves as a positioning mark, thereby improving the installability of the blow-out side frame 160.

[0063] The blow-out side frame 160 has a reinforcing member 162 that connects the stabilizer 130 (tongue 132) and the rear air guide plate 120 (downstream side portion 120a) in a manner that divides the air outlet 160a in the left-right direction. The reinforcing member 162 is located approximately at the center of the air outlet 160a in the left-right direction. This improves the rigidity of the blow-out side frame 160.

[0064] like Figure 5 As shown, the reinforcing member 162 is provided with a support shaft 163, which supports the second air guide plate 114b in a manner that allows it to rotate about the rotation axis S2. The support shaft 163 is, for example, a shaft extending laterally from the side of the reinforcing member 162. With the blow-out side frame 160 mounted on the main frame 150, the support shaft 163 is arranged coaxially with the rotation axis S2 (see reference). Figure 2 The support shaft 163 can be mounted on a bearing (not shown) formed inside the second air guide plate 114b. This prevents the middle portion of the second air guide plate 114b from bending due to its own weight. In addition, by providing the support shaft 163 on the rigid blow-out side frame 160, the middle portion of the second air guide plate 114b can be stably supported.

[0065] Furthermore, the support shaft 163 is preferably provided on the reinforcing member 162, but it can be provided on any one of the following as long as it can support the middle part of the second air guide plate 114b in the left-right direction so that it can rotate around the rotation axis S2: the tongue 132 (front frame) of the blowing side frame 160, the downstream side part 120a (rear frame) of the rear air guide plate 120, one side wall 140 (left frame), and the other side wall 140 (right frame). In addition, in this embodiment, the support shaft 163 is provided to support the second air guide plate 114b so that it can rotate around the rotation axis S2, but it is not limited to this. For example, the support shaft that supports the first air guide plate 114a so that it can rotate around the rotation axis S1 may also be provided.

[0066] The following describes the configuration of the ejector side frame 160 that is attached and detached from the main frame 150.

[0067] In the indoor unit body 110, with the rear air guide plate 120 (downstream portion 120a) of the air outlet side frame 160 supported on the main body frame 150, the air outlet side frame 160 is installed on the main body frame 150 by locking the stabilizer 130 (tongue 132) of the air outlet side frame 160 relative to the main body frame 150. The rear air guide plate 120 (downstream portion 120a) of the air outlet side frame 160 refers to the side opposite to the tongue 132 (front frame) with the air outlet 160a as the boundary. The stabilizer 130 (tongue 132) of the air outlet side frame 160 refers to the side opposite to the downstream portion 120a (rear frame) with the air outlet 160a as the boundary.

[0068] First, use Figures 6 to 9 The configuration of the blow-out side frame 160, which is supported so that it can rotate about the rotation axis S3 relative to the main frame 150, will be explained. Figure 7 This is a side sectional view of the indoor unit body 110, showing the state in which the blower side frame 160 is supported in a rotatable manner. Figure 7 It is a cross-sectional view of the indoor unit body 110 cut through a vertical plane via the rotation axis S3. Figure 8 This is a perspective view of the support part 155 of the main frame 150. Figure 9 This is a side sectional view showing the support part 155 of the main frame 150. Figure 9 It is a cross-sectional view of the support 155 cut through a vertical plane.

[0069] like Figures 6 to 9 As shown, the indoor unit body 110 has: a rotating shaft S3, which is disposed on the blow-out side frame 160 and parallel to the axial direction of the fan 200; and a support part 155, which is disposed on the main body frame 150 and supports the blow-out side frame 160 so that it can rotate around the rotating shaft S3.

[0070] like Figure 6 and Figure 7 As shown, the blow-out side frame 160 has a rotation shaft S3 disposed on the downstream side portion 120a (rear frame) of the rear air guide plate 120. The rotation shaft S3 is configured to connect the front end portions of a pair of ribs 164, which extend rearward from the downstream side portion 120a (rear frame) of the rear air guide plate 120. The pair of ribs 164 are spaced apart from each other in the left-right direction. Each rib 164 is configured to tilt downward towards the rear when the blow-out side frame 160 is mounted on the main frame 150. In this embodiment, three rotation shafts S3 are disposed on the left and right sides along the downstream side portion 120a (rear frame) of the rear air guide plate 120.

[0071] like Figure 8 and Figure 9As shown, the main frame 150 has a support portion 155 that supports the blow-out side frame 160 so that it can rotate about the rotation axis S3. The support portion 155 is provided on the second wall 152 of the main frame 150. The support portion 155 is a rearwardly recessed groove. In this example, three support portions 155 are provided corresponding to the number of rotation axes S3.

[0072] The support portion 155 has: an opening 155a for inserting the rotating shaft S3; a guide portion 155b for guiding the rotating shaft S3 to the support position; and a protrusion 155c for restricting the rotating shaft S3 from disengaging from the support position.

[0073] The opening 155a opens generally forward. The guide portion 155b is an inclined surface that slopes downwards from the upper opening end of the designated opening 155a toward the rear. The lower opening edge of the designated opening 155a slopes downwards as it faces forward. The guide portion 155b is located at the center of the support portion 155 in the left-right direction. The protrusion 155c is configured to protrude downwards from the upper wall of the support portion 155. The protrusion 155c is located at a position further rearward than the guide portion 155b. The protruding end of the protrusion 155c is configured such that the distance between it and the lower wall of the designated support portion 155 is slightly smaller than the diameter of the rotation shaft S3.

[0074] In the above configuration, when the rotating shaft S3 is inserted into the support portion 155, the rotating shaft S3 is guided along the guide portion 155b to the lower and rear side of the support portion 155. Furthermore, by pressing the rotating shaft S3 rearward, the area surrounded by the protrusion 155c, the rear wall (bottom wall) of the support portion 155, and the lower wall is rotatably supported by the protrusion 155c. This area is referred to as the support position (holding position). As described above, by setting the protrusion 155c to have a spacing slightly smaller than the diameter of the rotating shaft S3, a click-sensitive feel can be obtained when it is inserted into the support position (holding position).

[0075] Next, use Figure 10 and Figure 11 The locking mechanism that locks the blow-out side frame 160 relative to the main frame 150 will be described. Figure 10 This is a cross-sectional view showing the claw portion 166 of the blow-out side frame 160. Figure 10 It is a cross-sectional view cut through a vertical plane along the axis of the claw 166. Figure 11 This is a sectional view showing the third wall 153 of the main frame 150.

[0076] The indoor unit body 110, as a locking mechanism, includes an operating section 165, which is disposed on the blower side frame 160 and accepts a user's sliding operation (see reference). Figure 5); Claw 166, provided on the blow-out side frame 160 and movable with the sliding operation of the operating part 165 (see reference) Figure 6 and Figure 10 ); the force-applying component 167 applies force to the operating part 165 and the claw part 166 in a specified direction (see reference). Figure 10 ); Locking part 156, provided on the main frame 150 and capable of locking claw part 166 (see reference) Figure 11 ).

[0077] The operating part 165 is, for example, a knob that can be slidably operated by the user in the left and right directions. The operating part 165 is provided in the guide part 131 of the blow-out side frame 160. Specifically, the operating part 165 is provided at each end of the guide part 131 in the left and right directions.

[0078] The claw portion 166 is, for example, a shaft portion with the left-right direction as its axis. The outer end face of the claw portion 166 has an inclined cut shape with the length decreasing from the lower side to the upper side in the axial direction. The claw portions 166 are respectively provided on one side wall 140 (left frame) and the other side wall 140 (right frame) of the blow-out side frame 160.

[0079] The claw 166 moves in the left-right direction as the operating part 165 slides. In this embodiment, the claw 166 and the operating part 165 are integrally formed. The claw 166 and the operating part 165 are supported together with respect to one side wall 140 (left frame) and the other side wall 140 (right frame) of the blow-out side frame 160 in a manner that allows them to move in the left-right direction respectively.

[0080] like Figure 10 As shown, the force-applying component 167 applies force, for example, outward to the operating part 165 and the claw part 166. This state is also referred to as the initial state. In the initial state, each claw part 166 protrudes outward from each sidewall 140. When the user slides the operating part 165 inward from the initial state, each claw part 166 moves against the force applied by the force-applying component 167, so that it is positioned inward from each sidewall 140. Furthermore, when the user releases the sliding operation on the operating part 165, the claw part 166 returns to the initial state again due to the force applied by the force-applying component 167.

[0081] like Figure 11 As shown, locking portions 156 are respectively provided on one third wall 153 and the other third wall 153 of the main frame 150. Each locking portion 156 is, for example, a groove provided on the corresponding third wall 153 and recessed outward. Each locking portion 156 is provided at an appropriate position on the third wall 153 (above the front end of the third wall 153 in this embodiment) so that the blow-out side frame 160 can be locked in a predetermined position. The position where the blow-out side frame 160 is locked is also referred to as the locking position.

[0082] The method for mounting the blow-out side frame 160 to the main body frame 150 will be described below. First, the blow-out side frame 160 is supported so that it can rotate relative to the main body frame 150 about the rotation axis S3. Then, when the tongue 132 (front frame) of the blow-out side frame 160 is rotated upward to the locked position, the claw 166 is locked by the locking part 156, thereby mounting (locking) the blow-out side frame 160 to the main body frame 150.

[0083] Furthermore, the outer end face of the claw portion 166 has an inclined cut shape with a length that decreases from the lower side to the upper side along the axial direction. Therefore, when the blow-out side frame 160 is rotated upward, the outer end face of the claw portion 166 can abut against the stepped portion of the lower edge forming the third wall 153. Thus, when the blow-out side frame 160 is rotated upward, the outer end face of the claw portion 166 can be pressed inward through this stepped portion, so the blow-out side frame 160 can be rotated upward to the locked position without sliding the operation part 165.

[0084] Furthermore, when the claw portion 166 is locked by the locking portion 156, the outer end face of the claw portion 166 does not abut against the stepped portion forming the lower edge of the locking portion 156, while the outer peripheral surface of the claw portion 166 abuts against the stepped portion forming the lower edge of the locking portion 156, thus maintaining the locked state between the locking portion 156 and the claw portion 166. Therefore, it is possible to prevent the blow-out side frame 160 from detaching from the main frame 150.

[0085] Next, the method for removing the blow-out side frame 160 from the main frame 150 will be described. First, when the user slides the pair of left and right operating parts 165 inward, the locking state between the claw part 166 and the locking part 156 is released, allowing the tongue 132 (front frame) of the blow-out side frame 160 to be rotated downward. Furthermore, by rotating the tongue 132 (front frame) of the blow-out side frame 160 downward, the blow-out side frame 160 is pulled forward and downward relative to the main frame 150, allowing the blow-out side frame 160 to be removed from the main frame 150.

[0086] As described above, by fixing the tongue 132 (front frame) of the blow-out side frame 160 to the main frame 150, the tongue 132, which needs to be accurately positioned relative to the fan 200, can be fixed in the desired position, thus effectively stabilizing the vortex generated near the outer periphery of the fan 200.

[0087] The indoor unit body 110 has a guide mechanism that guides the blow-out side frame 160 to a locking position that can be locked relative to the main body frame 150 when the blow-out side frame 160 is supported so that it can rotate about the rotation axis S3.

[0088] use Figure 7 and Figure 11The guiding mechanism is described below. The indoor unit body 110, which serves as the guiding mechanism, has a claw 168 (see reference) provided on the blower side frame 160. Figure 5 and Figure 6 ); a slot 157 is provided in the main frame 150 and into which the claw 168 can be inserted (see reference) Figure 11 ).

[0089] The claw portion 168 is, for example, a shaft portion with the left-right direction as its axis. The outer end face of the claw portion 168 is a surface that is approximately perpendicular to the axis direction. The claw portions 168 are respectively provided on one side wall 140 (left frame) and the other side wall 140 (right frame) of the blow-out side frame 160. The claw portions 168 always protrude outward from each side wall 140.

[0090] The slots 157 are provided, for example, on one third wall 153 and the other third wall 153 of the main frame 150. Each slot 157 is, for example, a slot provided on the corresponding third wall 153 and recessed outward. The slot 157 has: a first slot 157a, which, viewed from the axial direction of the fan 200, extends along the direction in which the blow-out side frame 160 rotates from the locked position about the rotation axis S3; and a second slot 157b, which is continuous with the first slot 157a and, viewed from the axial direction of the fan 200, extends along a direction that intersects with the first slot 157a and is away from the support portion 155.

[0091] The first groove 157a is a groove with a width slightly larger than the diameter of the claw 168. The first groove 157a is formed along the rotation trajectory of the claw 168 about the rotation axis S3.

[0092] The second groove 157b is a groove extending along a direction intersecting the first groove 157a and away from the support portion 155. In this embodiment, the second groove 157b opens at its end opposite to the connection portion with the first groove 157a. Furthermore, the second groove 157b has a shape that widens from the connection portion with the first groove 157a towards the open end. In this example, the direction away from the support portion 155 is forward-sloping downward, referring to the direction in which the opening end of the opening 155a of the support portion 155 is inclined.

[0093] As described above, by forming the first groove 157a and the second groove 157b in different directions, steps are created at the end of the first groove 157a and the beginning of the second groove 157b. Therefore, even if the blow-out side frame 160 is accidentally released while rotating along the first groove 157a, the blow-out side frame 160 is easily caught by the steps, preventing it from falling. Thus, the safety of loading and unloading the blow-out side frame 160 can be improved.

[0094] Additionally, the claw portion 168 is provided on the blow-out side frame 160, but is not limited thereto; it may also be provided on the main body frame 150. In this case, the groove portion 157 only needs to be provided on the blow-out side frame 160.

[0095] Next, use Figure 12 The overall structure of fan 200 will be explained. Figure 12 This is a cross-sectional view of the indoor unit 100, which represents the fan 200. Figure 12 This is a cross-sectional view of the fan 200 cut by a vertical plane passing through the centerline L1. The fan 200 is a cross-flow fan. The fan 200 is supported by the indoor unit body 110 and extends in the left-right direction.

[0096] like Figure 12 As shown, the fan 200 has, for example, a pair of end plates 201; one or more support plates 202 arranged at a predetermined interval between the pair of end plates 201; and a plurality of blades 203 respectively mounted between the end plates 201 and the support plates 202 adjacent to the end plates 201 and between the adjacent support plates 202.

[0097] Each end plate 201 and each support plate 202 is a circular flat plate. Each end plate 201 and each support plate 202 is arranged so that their centers are aligned on the same straight line. The straight line connecting the centers of each plate is the center line L1 of the fan 200. Hereinafter, the end plate 201 located on one side (left side in this embodiment) will be referred to as the first end plate 201L, and the end plate 201 located on the other side (right side in this embodiment) will be referred to as the second end plate 201R.

[0098] Each end plate 201 is, for example, a circular flat plate. The first end plate 201L has a shaft portion 201a that protrudes outward (to the left in this embodiment). The shaft portion 201a is disposed on the centerline L1 of the fan 200. The shaft portion 201a is rotatably supported on a bearing member 141 formed on the inner side of the indoor unit body 110. The second end plate 201R is provided with a boss portion 201b for fixing the output shaft 210a of the motor 210. The boss portion 201b is configured to protrude inward from the inner side of the second end plate 201R. The output shaft 210a of the motor 210 and the second end plate 201R are fixed by tightening screws into the screw holes formed in the boss portion 201b.

[0099] In addition, each support plate 202 is, for example, formed as a ring-shaped plate. Each support plate 202 has at least: a circular opening (not shown) centered on the center line L1; and a ring-shaped portion (not shown) surrounding the opening (not shown).

[0100] Multiple blades 203 are mounted between adjacent plates. The multiple blades 203 are supported between adjacent plates, for example, by being embedded in grooves formed on the corresponding plates. The multiple blades 203 are arranged side-by-side at intervals in the circumferential direction around the centerline L1 of the fan 200. Each blade 203 is a plate-shaped component extending parallel to the centerline L1. Each blade 203 is curved into an arc shape that bulges outward from its central end towards its outer peripheral end in the opposite direction of rotation of the fan 200.

[0101] In the above configuration, the power from the motor 210 is transmitted to the fan 200, which rotates around the center line L1, thereby generating airflow from the inlet 111 to the outlet 113.

[0102] use Figure 13 The separate configuration of fan 200 will be explained. Figure 13 This is a cross-sectional view of the indoor unit 100 with the first fan 200a removed. Figure 13 It is a cross-sectional view of the fan 200 cut through a vertical plane passing through the centerline L1.

[0103] like Figure 13 As shown, the fan 200 can be separated into multiple fan blades. The fan 200 is configured as a cross-flow fan by combining multiple fan blades. The fan 200 has, for example, a first fan 200a and a second fan 200b that can be separated in the longitudinal direction (left-right direction in this example). The first fan 200a is a fan blade located on one side in the left-right direction (left side in this embodiment). The second fan 200b is a fan blade located on the other side in the left-right direction (right side in this embodiment) and fixed to the output shaft 210a of the motor 210.

[0104] The fan 200 is divided into left and right sections at any of the one or more support plates 202. Among the divided support plates 202, the plate located on one side (left side in this embodiment) is referred to as the first connecting plate 204, and the plate located on the other side (right side in this embodiment) is referred to as the second connecting plate 205. In this embodiment, the fan 200 is divided into left and right sections at the rightmost support plate.

[0105] The first fan 200a has: a first end plate 201L; a plurality of support plates 202 arranged at predetermined intervals along the other side from the first end plate 201L; a first connecting plate 204 located at the end on the other side; and a plurality of blades 203 respectively mounted between adjacent plates.

[0106] The second fan 200b has: a second end plate 201R; a second connecting plate 205 arranged at predetermined intervals along one side of the second end plate 201R; and a plurality of blades 203 mounted between the second end plate 201R and the second connecting plate 205.

[0107] use Figure 14 and Figure 15 The connection part 220 connecting the first fan 200a and the second fan 200b will be described. Figure 14 This is a side view showing the first side of the first fan 200a. Figure 14 This is a view of the first fan 200a from the outside (right side). Figure 15 This is a side view showing the second side of the second fan 200b. Figure 15 This is a view of the second fan 200b from the outside (left side). Figure 16 This is a side view of the first connecting plate 204 and the second connecting plate 205, showing the state of the first connecting plate 204 and the second connecting plate 205 connected. Figure 16 This is a diagram showing the first connecting plate 204 and the second connecting plate 205 viewed from the left.

[0108] The connecting part 220 connects the first surface and the second surface. The first surface is the surface of the first fan 200a that is opposite to the second fan 200b (in this embodiment, the outer surface of the first connecting plate 204); the second surface is the surface of the second fan 200b that is opposite to the first fan 200a (in this embodiment, the outer surface of the second connecting plate 205).

[0109] The connecting part 220 has, for example, a plurality of first magnets 220a disposed on the first connecting plate 204; and a plurality of second magnets 220b disposed on the second connecting plate 205.

[0110] like Figure 14 As shown, the first connecting plate 204 is, for example, a flat plate formed in an annular shape. The first connecting plate 204 has, for example, an opening 204a that connects the interior of the first fan 200a to the outside; and an annular portion 204b surrounding the opening 204a.

[0111] A plurality of first magnets 220a are disposed on the outer surface of the first connecting plate 204. Specifically, the plurality of first magnets 220a are arranged side by side at equal intervals in the circumferential direction on the annular portion 204b of the first connecting plate 204. In this embodiment, four first magnets 220a are arranged side by side at equal intervals in the circumferential direction.

[0112] like Figure 15 As shown, the second connecting plate 205 is, for example, a plate formed in a generally annular shape. The second connecting plate 205 includes, for example, an opening 205a that connects the interior of the second fan 200b to the outside; an annular portion 205b surrounding the opening 205a; and a protective member 205c that blocks a portion of the opening 205a. The specific shape of the protective member 205c will be described later.

[0113] A plurality of second magnets 220b are disposed on the outer surface of the second connecting plate 205. Specifically, the plurality of second magnets 220b are arranged side by side at equal intervals in the circumferential direction on the annular portion 205b of the second connecting plate 205. The number of second magnets 220b is the same as the number of first magnets 220a. That is, the circumferential spacing of the plurality of second magnets 220b is the same as the circumferential spacing of the plurality of first magnets 220a.

[0114] In the above configuration, the first fan 200a and the second fan 200b are connected in a state where the first surface (the outer surface of the first connecting plate 204) and the second surface (the outer surface of the second connecting plate 205) are opposite each other due to the mutual attraction between the first magnet 220a and the second magnet 220b.

[0115] Furthermore, the first magnet 220a and the second magnet 220b are arranged at equal intervals in the circumferential direction on the outer surfaces of the corresponding connecting plates, so that the circumferential position of the second surface relative to the first surface is a predetermined position. Thus, the first surface and the second surface are connected by the magnetic attraction between the first magnet 220a and the second magnet 220b, and the circumferential position of the second surface relative to the first surface is determined. Therefore, the positions of the plurality of blades 203 constituting the first fan 200a and the plurality of blades 203 constituting the second fan 200b can be connected at the predetermined position, thereby preventing resonance caused by the displacement of adjacent blades 203 from their predetermined positions.

[0116] In addition, the connecting part 220 has a first magnet 220a and a second magnet 220b, but is not limited to this. For example, as long as the first surface of the first fan 200a (the outer surface of the first connecting plate 204) and the second surface of the second fan 200b (the outer surface of the second connecting plate 205) are connected relative to each other, and the circumferential position of the second surface (the outer surface of the second connecting plate 205) relative to the first surface (the outer surface of the first connecting plate 204) is connected at a predetermined position.

[0117] like Figure 16 As shown, the fan 200 has a limiting part 230, which, when the first fan 200a and the second fan 200b are connected, limits the rotation of the first fan 200a relative to the second fan 200b in a predetermined direction. The rotation directions of the fan 200 include a first direction C1 and a second direction C2 that are opposite to each other (see reference). Figure 16 The first direction C1 is the direction in which the fan 200 rotates under various operating modes such as cooling, heating, and dehumidification. The second direction C2 is the opposite direction to the first direction C1. The limiting part 230 restricts the first fan 200a from rotating relative to the second fan 200b in the first direction C1.

[0118] like Figure 14 andFigure 15 As shown, the limiting part 230 has: a plurality of protrusions 231 disposed on one of the fan blades of the first fan 200a and the second fan 200b; and a plurality of slots 232 disposed on the other fan blade and locking each of the protrusions 231.

[0119] like Figure 14 As shown, a plurality of grooves 232 are provided on the outer surface of the first connecting plate 204. Specifically, the plurality of grooves 232 are arranged side by side at equal intervals along the circumferential direction on the annular portion 204b of the first connecting plate 204. The grooves 232 are, for example, through holes formed in the annular portion 204b. In this embodiment, four grooves 232 are arranged side by side at equal intervals in the circumferential direction. In addition, the grooves 232 are not limited to holes, but may also be recesses.

[0120] like Figure 15 As shown, a plurality of protrusions 231 are provided, for example, on the outer surface of the second connecting plate 205. Specifically, the plurality of protrusions 231 are arranged side by side at equal intervals along the circumferential direction on the annular portion 205b of the second connecting plate 205. Each protrusion 231 protrudes outward. The number of protrusions 231 is the same as the number of grooves 232, and four protrusions 231 are arranged side by side at equal intervals in the circumferential direction.

[0121] like Figure 16 As shown, with the first connecting plate 204 and the second connecting plate 205 connected, the protrusions 231 corresponding to the plurality of slots 232 are inserted and locked respectively.

[0122] like Figure 16 As shown, the slot 232 is a slot extending in the circumferential direction of the fan 200. With the first connecting plate 204 and the second connecting plate 205 connected, the protrusion 231 is locked at the end of the slot 232 on the second direction C2 side. In this state, within the slot 232, there is no space for the protrusion 231 to move on the side closer to the second direction C2 than the protrusion 231, but there is a space S4 on the side closer to the first direction C1 than the protrusion 231, allowing the protrusion 231 to move. The space S4 is set to a length such that when the protrusion 231 moves along the slot 232 towards the second direction C2, the magnetic attraction between the first magnet 220a and the second magnet 220b disappears.

[0123] In the above configuration, when the first fan 200a and the second fan 200b are connected, the limiting part 230 allows the first fan 200a to rotate relative to the second fan 200b only in the second direction C2. By rotating the first fan 200a relative to the second fan 200b in the second direction C2, the protrusion 231 moves within the groove 232 towards the second direction C2, thereby eliminating the magnetic attraction between the first magnet 220a and the second magnet 220b, allowing the first fan 200a and the second fan 200b to be removed.

[0124] On the other hand, when the first fan 200a and the second fan 200b are connected, if an attempt is made to rotate the first fan 200a relative to the second fan 200b in the first direction C1, the protrusion 231 abuts against the end of the groove 232 on the second direction C2 side, thus restricting the first fan 200a from rotating in the first direction C1.

[0125] As described above, by rotating the first fan 200a relative to the second fan 200b in a direction opposite to the normal rotation direction of the fan 200, the connection between the first fan 200a and the second fan 200b can be released. Furthermore, since the rotation of the first fan 200a relative to the second fan 200b is restricted to the first direction C1, which is the normal rotation direction of the fan 200, even when a force is applied to the first fan 200a to rotate in the first direction C1 during normal operation of the fan 200, the release of the connection between the first fan 200a and the second fan 200b can be prevented.

[0126] use Figure 15 The protective component 205c of the second connecting plate 205 will be described. Figure 15 This is a side view of the second connecting plate 205 of the protective component 205c.

[0127] The protective member 205c has: an annular portion 206 disposed within the opening 205a; and a plurality of ribs 207 arranged side by side in the circumferential direction between the annular portion 206 and the annular portion 205b. The plurality of ribs 207 extend radially from the inner side to the outer side and are inclined relative to the radial direction.

[0128] As described above, by means of a protective member 205c that blocks a portion of the opening 205a in the second fan 200b, the user can be prevented from inserting their hand or fingers into the interior of the second fan 200b through the opening 205a when the first fan 200a is removed from the indoor unit body 110. Therefore, the user's hand or fingers can be prevented from contacting the output shaft 210a of the motor 210.

[0129] Furthermore, multiple ribs 207 extend radially from the inner side to the outer side and are inclined relative to the radial direction. As a result, when the first fan 200a and the second fan 200b are connected, the forced air vortex generated between the interiors of the first fan 200a and the second fan 200b when the fan 200 rotates can be stabilized, thus suppressing the performance degradation of the fan 200.

[0130] In addition, the protective member 205c has an annular portion 206 and multiple ribs 207, but is not limited thereto; for example, it may also be a configuration that only has multiple ribs 207.

[0131] Next, use Figure 17 Figure 18 illustrates the method of attaching and detaching the first fan 200a relative to the indoor unit body 110. Figure 17 This is a schematic diagram showing the front surface of bearing component 141. Figure 18A This is a schematic front view of the indoor unit body 110, showing the state in which the first fan 200a is installed. Figure 18B This is a schematic front view of the indoor unit body 110, showing the state in which the first fan 200a is pushed in one direction after the connection between the first fan 200a and the second fan 200b has been disconnected. Figure 18C This is a schematic front view of the indoor unit body 110 showing the state in which one end of the first fan 200a is tilted.

[0132] With the second fan 200b installed on the indoor unit body 110, the first fan 200a is installed on the indoor unit body 110 in a detachable manner.

[0133] like Figure 17 As shown, one end of the first fan 200a along its long side (left-right direction in this embodiment) is supported so that it can move in the left-right direction relative to the indoor unit body 110. A bearing 201c is provided on the shaft portion 201a of the first fan 200a. The bearing 201c is positioned by a retaining ring 201d. The bearing 201c of the first fan 200a is supported so that it can move in the left-right direction relative to the bearing component 141 provided on the inner side of the indoor unit body 110.

[0134] like Figure 17As shown, the bearing component 141 has an elongated hole extending in the left-right direction. The bearing component 141 is formed, for example, of a resin with high sliding properties such as graphite nylon (Polyslider, registered trademark). The bearing component 141 has: a main body 141a that supports the bearing 201c in a manner movable in the left-right direction; and a widening portion 141b formed to tilt the first fan 200a with one end as a fulcrum. The main body 141a is formed as a cylinder with open ends and a fixed inner diameter. The widening portion 141b is continuously formed inside the main body 141a and is formed to gradually widen in inner diameter. The main body 141a and the widening portion 141b are aligned along a central axis.

[0135] The method for removing the first fan 200a will be described below using Figure 18. Figure 18A As shown, the first fan 200a is installed on the indoor unit body 110. Figure 18A This indicates the state where the air guide plate 114 has been removed from the indoor unit body 110 and the side frame 160 has been blown out. Figure 18A In the middle, by removing the blow-out side frame 160, there is an opening 150a on the bottom surface of the indoor unit body 110 that allows the first fan 200a to be removed.

[0136] exist Figure 18A In the state shown, by rotating the first fan 200a relative to the second fan 200b in the second direction C2, the connection between the first fan 200a and the second fan 200b is released. Then, by pushing the first fan 200a to the left, a gap is created between the first fan 200a and the second fan 200b. Figure 18B (As shown in the diagram). Furthermore, by using one end of the first fan 200a as a fulcrum, the first connecting plate 204 side of the first fan 200a is tilted downwards, so that the first connecting plate 204 side is exposed to the outside of the indoor unit body 110 through the opening 150a. Figure 18C (As shown in the diagram). Furthermore, by pulling the shaft portion 201a of the first fan 200a out of the bearing component 141, the first fan 200a is removed from the indoor unit body 110 through the opening 150a. Since the method of installing the first fan 200a onto the indoor unit body 110 is the reverse of the removal method described above, its description is omitted.

[0137] As described above, by having the second fan 200b installed in the indoor unit body 110 and the first fan 200a detachably mounted in the indoor unit body 110, the first fan 200a can be removed while the second fan 200b surrounding the output shaft 210a of the motor 210 remains in place. This allows for thorough cleaning of the removed first fan 200a. Furthermore, since the output shaft 210a of the motor 210 is surrounded by the second fan 200b, the output shaft 210a is not exposed inside the indoor unit body 110, preventing the user's fingers from touching the output shaft 210a, thus ensuring high safety.

[0138] Furthermore, when the connection between the first fan 200a and the second fan 200b is disconnected, by pushing one side (left side) in the first direction (left-right direction), the other end (right end) in the first direction (left-right direction) can be tilted relative to the first direction (left-right direction) using one end (left end) in the first direction (left-right direction) as a fulcrum. Therefore, even if the fan 200 is placed in a space with no space on the left and right, the first fan 200a can be removed from the opening 150a on the air outlet 113 side of the indoor unit body 110.

[0139] In the above configuration, the fan 200 is separated from the support plate 202, but this is not the only option. For example, the fan 200 can be separated from the support plate 202 at multiple blades 203, or it can be separated by diagonally crossing the support plate 202. Even in this case, connecting plates can be provided on the separation surfaces.

[0140] Furthermore, the fan 200 is configured to be separable into two fan blades, but it is not limited to this; it can also be configured to be separable into three or more fan blades. In this case, it is sufficient to make the first fan 200a further separable into multiple fan blades. Similarly, in this case, the separated fan blades can be connected to each other via the connecting part 220.

[0141] In the above configuration, the air conditioner indoor unit 100 includes: an indoor unit body 110 having an intake 111 and an outlet 113; and a fan 200 disposed inside the indoor unit body 110 and generating airflow from the intake 111 to the outlet 113. The indoor unit body 110 includes: a main frame 150 having an opening 150a and housing the fan 200; and an outlet side frame 160 detachable from the opening 150a of the main frame 150. When installed in the opening 150a, the outlet side frame 160 has an air outlet 160a that forms a downstream airflow path (second airflow path P2) from the fan 200 to the outlet 113. The air outlet 160a includes a tongue 132 of a stabilizer 130 and a downstream portion 120a of a rear air guide plate 120.

[0142] Therefore, by removing the blow-out side frame 160 from the main frame 150, the opening area from the fan 200 to the blow-out port 113 can be increased, and components that are likely to become obstructions when approaching the fan 200 from the blow-out port 113 can be removed, thus improving the cleanliness of the fan 200.

[0143] With the blow-out side frame 160 installed on the main body frame 150, the air outlet 160a is located inside the opening 150a. The opening 150a has: a first wall 151 located outside the stabilizer 130 constituting the air outlet 160a; and a second wall 152 opposite to the first wall 151 and located outside the rear air guide plate 120 constituting the air outlet 160a, the distance between the first wall 151 and the second wall 152 being greater than the diameter of the fan 200. Thus, the fan 200 can be removed to the outside of the indoor unit body 110 through the opening 150a.

[0144] The indoor unit body 110 also includes: an airflow direction changing component (second air guide plate 114b) extending in a first direction (left-right direction) parallel to the rotation axis of the fan 200 and capable of rotating around a first rotation axis (rotation axis S2) parallel to the first direction (left-right direction); and a first support portion (support shaft 163) provided at the middle of the first direction (left-right direction) of the blow-out side frame 160, supporting the airflow direction changing component (second air guide plate 114b) in a manner capable of rotating around the first rotation axis (rotation axis S2). This prevents the middle portion of the second air guide plate 114b from bending due to its own weight.

[0145] The blow-out side frame 160 also includes a reinforcing member 162, which connects the stabilizer 130 of the blow-out side frame 160 to the rear air guide plate 120 of the blow-out side frame 160 in a manner that divides the air outlet 160a in a first direction (left-right direction). A first support portion (support shaft 163) is provided on the reinforcing member 162. As described above, by providing the support shaft 163 on the blow-out side frame 160, which has increased rigidity, the middle portion of the second air guide plate 114b can be stably supported.

[0146] The indoor unit body 110 is equipped with a locking mechanism that, when the rear air guide plate 120 of the blower side frame 160 is supported on the main body frame 150, locks the stabilizer 130 side of the blower side frame 160 relative to the main body frame 150. This allows the tongue 132 of the stabilizer 130, which needs to be accurately positioned relative to the fan 200, to be fixed in the desired position, thus effectively stabilizing the vortices generated near the outer periphery of the fan 200.

[0147] The indoor unit body 110 also includes: a second rotating shaft (rotating shaft S3), which is disposed on the rear air guide plate 120 side of the blow-out side frame 160 and parallel to the rotating shaft of the fan 200; and a second support part (support part 155), which is disposed on the main body frame 150 and supports the blow-out side frame 160 so that it can rotate around the second rotating shaft (rotating shaft S3). Thus, the blow-out side frame 160 can rotate the stabilizer 130 side of the blow-out side frame 160 with the rear air guide plate 120 side of the blow-out side frame 160 as a fulcrum.

[0148] The indoor unit body 110 also includes a guide mechanism that guides the blower side frame 160 to a locking position that can be locked relative to the main body frame 150. The guide mechanism has: a claw portion 168 disposed on one of the main body frame 150 or the blower side frame 160; and a groove portion 157 disposed on the other of the main body frame 150 or the blower side frame 160 and into which the claw portion 168 can be inserted. The groove portion 157 has: a first groove portion 157a, which, viewed from the axial direction of the fan 200, extends in a direction that rotates the blower side frame 160 about a second rotation axis (rotation axis S3) from the locking position; and a second groove portion 157b, which is continuous with the first groove portion 157a and, viewed from the axial direction of the fan 200, extends in a direction that intersects the first groove portion 157a and is away from the second support portion (support portion 155). As described above, by forming the first groove 157a and the second groove 157b in different directions, steps are generated at the end of the first groove 157a and the beginning of the second groove 157b. Therefore, even if the blow-out side frame 160 is accidentally released while rotating along the first groove 157a, the blow-out side frame 160 is easily stuck by the steps, which can prevent the blow-out side frame 160 from falling.

[0149] Furthermore, the present invention is not limited to the embodiments described above, and various modifications are possible. For example, it can be replaced with a configuration that is substantially the same as the configuration shown in the above embodiments, a configuration that performs the same function or effect, or a configuration that can achieve the same purpose.

Claims

1. An indoor unit for an air conditioner, comprising: The indoor unit body has an intake inlet and an exhaust outlet; and A fan, located inside the indoor unit, generates airflow from the intake port to the outlet port. The indoor unit body has: The main frame, having an opening and housing the fan; and The side frame is detachably mounted to the opening of the main frame. The blow-out side frame has an air outlet, which, when installed in the opening, forms a downstream air supply path from the fan to the blow-out outlet. The air outlet includes the tongue of the stabilizer and the downstream side portion of the rear air guide plate.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, With the blow-out side frame installed on the main body frame, the air outlet is located inside the opening. The opening has: The first wall is located outside the stabilizer that constitutes the air outlet; The second wall is opposite to the first wall and located outside the rear air guide plate that constitutes the air outlet. The distance between the first wall and the second wall is greater than the diameter of the fan.

3. The indoor unit of the air conditioner according to claim 1 or 2, characterized in that, It also has: A wind direction changing component extends along a first direction parallel to the rotation axis of the fan and is rotatable about a first rotation axis parallel to the first direction. as well as A first support portion is disposed at the midpoint of the first direction of the blow-out side frame, and supports the airflow direction changing component in a manner that allows it to rotate about the first rotation axis.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, It also includes a reinforcing component that connects the stabilizer of the blow-out side frame to the rear air guide plate of the blow-out side frame in a manner that divides the air outlet in the first direction. The first support portion is disposed on the reinforcing member.

5. The indoor unit of the air conditioner according to claim 1 or 2, characterized in that, The device is equipped with a locking mechanism that locks the stabilizer side of the blow-out side frame relative to the main frame while the rear air guide plate side of the blow-out side frame is supported on the main frame.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, It also has: The second rotating shaft is disposed on the rear air guide plate side of the blow-out side frame and is parallel to the rotating shaft of the fan; The second support is disposed on the main frame and supports the blow-out side frame in a manner that allows it to rotate about the second axis of rotation.

7. The indoor unit of the air conditioner according to claim 6, characterized in that, It also includes a guiding mechanism that guides the blow-out side frame to a locking position that can be locked relative to the main frame. The guiding mechanism has: A claw portion, which is disposed on one of the main body frame or the blow-out side frame; and A groove is provided on the other side of the main frame or the blow-out side frame and is capable of inserting the claw. The groove has: The first groove, viewed from the axial direction of the fan, extends in the direction of rotating the blow-out side frame from the locked position about the second rotation axis; The second groove is continuous with the first groove and extends in a direction that intersects with the first groove and is away from the second support when viewed from the axial direction of the fan.

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