JP2011099589A - Wall-mounted indoor unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wall-mounted indoor unit of an air conditioning device capable of easily performing the mounting work of a functional component housed in a body. <P>SOLUTION: The body 2 of the indoor unit 1 has a back section 2c facing a sidewall face on which the unit is mounted, and a central section 2b in the depth direction, having a lateral width larger than the back section 2c. A stepping motor 25 as a functional component is disposed in an internal projecting space 33 formed between an end face of a front space of the back section 2c and a side face of the central section 2b in the depth direction. By disposing the stepping motor 25 in the internal projecting space 33, the other circumferential components disturbing the mounting work can be reduced, and the mounting work of the stepping motor 25 can be easily performed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a wall-mounted indoor unit of an air conditioner, and more particularly to a wall-mounted indoor unit of an air conditioner in which functional parts are housed in a main body.

  The wall-mounted indoor unit of an air conditioner has an indoor heat exchanger in the main body, sucks indoor air into the main body from the suction port using a blower fan such as a crossflow fan, and passes it through the indoor heat exchanger to the outside of the main body. Harmonic air is blown out from the outlet. In order to control the wind direction of the conditioned air blown out from the air outlet, a vertical blade that adjusts the wind direction in the left-right direction and a horizontal blade that adjusts the wind direction in the up-down direction are generally provided.

  In order to adjust the harmony of the air blown in this way, the wind speed, the wind direction, etc., movable parts such as motors and gears, sensors for detecting the environment and operating state to control the movable parts, Various functional parts such as electric parts constituting the control circuit are required.

  However, in the conventional wall-mounted indoor unit, in order to reduce the feeling of pressure when attached to the wall, as described in Patent Document 1 (Japanese Patent Laid-Open No. 2005-98671), for example, a substantially rectangular parallelepiped main body is used. A configuration is adopted in which the inner volume covered with the casing is reduced as much as possible. Therefore, in the wall-mounted indoor unit, various parts and members are densely arranged in a narrow space, and various parts are also arranged around the functional parts. Since the functional parts in the wall-mounted indoor unit are in the above-described situation, it is difficult to attach the functional parts during assembly.

  An object of the present invention is to provide a wall-mounted indoor unit of an air conditioner that can easily perform a mounting operation of a functional component housed inside a main body.

  The wall-mounted indoor unit for an air conditioner according to the first invention includes a main body and a functional component. The main body has a back surface portion facing the side wall surface to be attached, a depth direction center portion that is provided in front of the back surface portion and has a larger width than the back surface portion, and a front surface portion that is provided in front of the depth direction center portion. A functional component is arrange | positioned in the internal overhang | projection space formed between the end surface of the front space of a back surface part, and the side surface of the depth direction center part.

  According to the present invention, since the functional parts are arranged in the internal overhanging space, other parts that obstruct the mounting operation are reduced in the surrounding area. For this reason, it is possible to perform the operation of attaching the functional component without any obstacles around it.

  A wall-mounted indoor unit of an air conditioner according to a second aspect of the present invention is the wall-mounted indoor unit of the air conditioner of the first aspect, wherein the main body has a lid member that forms at least the side surface of the depth center.

  According to the present invention, when the lid member is removed, the functional component can be easily exposed, and there is a state where there is no other component around the functional component. As a result, the area and direction in which functional parts can be attached and maintained can be expanded.

  The wall-mounted indoor unit for an air conditioner according to a third aspect of the present invention is the wall-mounted indoor unit for the air conditioner according to the first or second aspect of the present invention, further comprising a movable panel attached to the main body. The functional component is a driving component for generating power to drive the movable panel or transmitting power.

  According to the present invention, the drive parts are arranged in the overhanging space so that the operation can be confirmed and adjusted not only from one side such as the side of the main body but also from the front and rear. become.

  A wall-mounted indoor unit of an air conditioner according to a fourth aspect of the present invention is the wall-mounted indoor unit of the air conditioner according to the third aspect of the present invention, wherein the drive component includes an arm drive motor that generates a driving force transmitted to the panel support arm. .

  According to the present invention, the arm drive motor must be mounted with care to properly transmit the generated drive force to the movable panel. Therefore, by arranging the arm drive motor that requires attention in this way in the internal overhanging space, the workability of the arm drive motor installation work is improved.

  A wall-mounted indoor unit of an air conditioner according to a fifth aspect of the present invention is the wall-mounted indoor unit of the air conditioner according to the fourth aspect of the present invention, and the movable panel covers a part of the side surface and the front surface of the main body when stopped. And in order to support a movable panel, the panel support arm arrange | positioned in the adjacent space continuously connected to the circumference | surroundings vicinity of the internal overhanging space and / or the internal overhanging space is further provided. The arm drive motor is disposed outside the side of the panel support arm.

  According to the present invention, the operation of arranging the arm drive motor and the panel support arm can be performed together.

  A wall-mounted indoor unit of an air conditioner according to a sixth aspect of the present invention is the wall-mounted indoor unit of the air conditioner according to any of the first to fifth aspects of the present invention, and includes a light receiving unit and a control unit that controls the light receiving unit. With. The light receiving unit is disposed in an inner overhanging space and / or a close space continuously connected to the vicinity of the inner overhanging space. The control unit is provided in the internal overhanging space and / or the adjacent space, and controls the light receiving unit.

  According to the present invention, light such as infrared rays can be received by the light receiving unit through the internal overhanging space, so that the light receiving unit can be arranged away from the outside of the main body and thus is not easily affected by the outside of the main body. Since the light receiving unit and the control unit are arranged in the space, it is easy to perform an attaching operation or a replacement operation of the light receiving unit and the control unit.

  In the wall-mounted indoor unit of the air conditioner according to the first aspect of the invention, the functional component can be easily attached.

  In the wall-mounted indoor unit of the air conditioner according to the second aspect of the invention, the lid member can be removed, so the area and direction in which functional parts can be attached and maintained can be expanded, and work efficiency and easy maintenance work are facilitated. Improves.

  In the wall-mounted indoor unit of the air conditioner according to the third aspect of the present invention, it is easy to check the drive state and attach the drive components, and the time required for attachment work and maintenance can be reduced.

  In the wall-mounted indoor unit of the air conditioner according to the fourth aspect of the invention, the arm drive motor can be easily attached and maintained.

  In the wall-mounted indoor unit of the air conditioner according to the fifth aspect of the invention, two operations can be consolidated, and the work efficiency can be improved.

  In the wall-mounted indoor unit of the air conditioner according to the sixth aspect of the present invention, the visibility with respect to the panel support arm is improved, so that the ease of attachment work and maintenance work is further improved.

The front view of the wall hanging type indoor unit of the air conditioning apparatus which concerns on one Embodiment of this invention. The top view of the wall-hanging type indoor unit of FIG. The side view of the wall-hanging type indoor unit of FIG. The perspective view for demonstrating the internal overhang | projection space of the wall-hanging type indoor unit of FIG. The perspective view of the wall-hanging type indoor unit of FIG. The front view which shows the state which moved the movable panel of the wall-hanging type indoor unit of FIG. The side view of the wall-hanging type indoor unit of FIG. The top view of the wall-hanging type indoor unit of FIG. The perspective view of the wall-hanging type indoor unit of FIG. The perspective view of the wall-hanging type indoor unit of FIG. The side view which shows the state which removed the movable panel of the wall-hanging type indoor unit of FIG. The side view which shows the structure of the periphery of the panel support arm at the time of operation stop. The side view which shows the structure of the periphery of the panel support arm in the middle of a movement. The side view which shows the structure of the periphery of the panel support arm at the time of a driving | operation. The side view for demonstrating the locus | trajectory of a movement of a movable panel. The front view which shows the state which removed the movable panel of the wall-hanging type indoor unit of FIG. The top view of the wall-hanging type indoor unit of FIG. The side view of the sectional view on the AA line of FIG. Sectional drawing for demonstrating the internal overhang | projection space of the wall-hanging type indoor unit of FIG. The perspective view which shows the state which removed the cover member from the wall hanging type indoor unit of FIG. The side view of the wall-hanging type indoor unit of FIG. (A) Front view of lid member, (b) Right side view of lid member, (c) Rear view of lid member, (d) Left side view of lid member. (A) The top view of the cover member of FIG. 22, (b) The bottom view of a cover member, (c) BB sectional drawing of FIG. 22 (a).

<Outline of air conditioner>
The wall-mounted indoor unit of an air conditioner according to an embodiment of the present invention is connected to an outdoor unit installed outside by a refrigerant pipe and constitutes a refrigerant circuit of the air conditioner together with the outdoor unit. The wall-mounted indoor unit is connected to the outdoor unit via a transmission line, and operates integrally with the outdoor unit. Therefore, a printed wiring board on which a control circuit and electrical components are mounted is installed inside the wall-mounted indoor unit.

<Appearance of wall-mounted indoor unit>
FIG. 1 is a front view of a wall-mounted indoor unit in a stopped state, and FIG. 2 and FIG. 3 show a plan view and a side surface of the wall-mounted indoor unit in FIG. In the following description, the wall-mounted indoor unit 1 is abbreviated as an indoor unit 1. Further, the right side toward the front surface 2F of the main body 2 of the indoor unit 1 is the left side of the indoor unit 1, and the left side is the right side of the indoor unit 1.

  An indoor unit 1 shown in FIGS. 1 to 3 includes a heat exchanger (not shown) and a blower (not shown) in a main body 2 having a front surface 2F, left and right side surfaces 2S, a back surface 2B, an upper surface 2U, and a bottom surface 2D. (Not shown) is installed. The shape of the main body 2 is a rectangle that is long in the horizontal direction (lateral direction) in the front view, is a rectangle that is long in the vertical direction in the side view, and the front surface 2F and the back surface 2B are parallel in the plan view, and the center of the side surface 2S is largely horizontal. It is a horizontally long shape protruding in the direction. An attachment portion (not shown) is provided on the back surface 2B of the main body 2. And the back surface 2B of the main body 2 faces the wall surface when the indoor unit 1 is attached to the wall surface.

  FIG. 4 is a perspective view illustrating an outline of the indoor unit 1 when the indoor unit 1 is viewed from diagonally above the left front of the indoor unit 1. The internal overhanging space will be described with reference to FIG. As shown in FIG. 4, the main body 2 of the indoor unit 1 can be divided into three parts in the depth direction. That is, the main body 2 includes a back surface portion 2c in the vicinity of the back surface 2B facing the wall surface to be attached, a depth direction center portion 2b in front of the back surface portion 2c, and a front surface portion 2a in front of the depth direction center portion 2b. . The front surface portion 2a and the back surface portion 2c are extremely thin spaces in the vicinity of the front surface 2F and the back surface 2B of the main body 2. For example, the depth of the front surface portion 2a and the back surface portion 2c is about 5 mm from the front surface 2F and the back surface 2B, and is about the thickness of the casing 6.

  There is a front space SP1 in the central portion 2b in the depth direction in front of the back surface portion 2c. The front space SP1 has the same height and the same width as the back surface portion 2c. The front space SP1 has end faces SF1 and SF2 on the left and right. These end surfaces SF1 and SF2 are rectangular surfaces surrounded by a one-dot chain line, a two-dot chain line, and two dotted lines in FIG. 4, and are opposed to the side surface 2S of the main body 2.

  The central portion 2b in the depth direction includes a front space SP1, an internal overhanging space SP2 projecting to the left of the front space SP1, and an internal overhanging space SP3 projecting to the right of the front space SP1. The internal overhanging space SP2 is a space between the left end surface SF1 of the front space SP1 and the left side surface 2S of the main body 2. In FIG. 4, the upper surface and the lower surface of the internal overhanging space SP2 are hatched. An internal overhanging space SP3 symmetric to the internal overhanging space SP2 is formed between the right end surface SF2 and the right side surface 2S. A functional component is disposed in at least one of the internal overhanging spaces SP2 and SP3. The proximity space close to the internal overhanging spaces SP2 and SP3 will be described later.

  As shown in FIG. 1, the indoor unit 1 includes a movable panel 3 that covers the entire front surface 2F of the main body 2 and a part of the side surface 2S. The movable panel 3 includes a flat front surface portion 3a that covers the entire surface along the front surface 2F of the main body 2, and a side surface portion 3b that curves smoothly and covers a part of the side surface 2S along the left and right side surfaces 2S of the main body 2. It consists of. As shown in FIG. 2, the side surface portion 3b of the movable panel 3 is curved in an arc shape when viewed from above.

  As can be seen from FIG. 1, only the movable panel 3 is visible from the front. When viewed from the front, the flat front surface portion 3a of the movable panel 3 is mainly seen, giving the impression that the wall is raised, so that the feeling of pressure on the occupants in the room can be reduced. Further, since the side surface portion 3b of the movable panel 3 is smoothly curved in an arc, there is no ridge line between the front surface portion 3a and the side surface portion 3b. The indoor unit 1 can be made inconspicuous.

  As can be seen from FIGS. 2 and 3, the side surface portion 3b extends to the most laterally widened portion in the depth direction central portion 2b. And the decorative board 4 is formed in the side surface 2S of the main body 2 behind the side part 3b. In the portion where the movable panel 3 and the decorative plate 4 are brought into contact with each other, the surface of the side surface 3b of the movable panel 3 is prevented from having a step at the end of the side surface 3b of the movable panel 3 and the end of the decorative plate 4. The position of the surface of the decorative board 4 is made to correspond. Therefore, when the indoor unit 1 is viewed from the front, the joint between the movable panel 3 and the decorative plate 4 is not visible.

  In the side surface 2S of the main body 2 constituted by the side surface portion 3b of the movable panel 3 and the decorative plate 4, the width of the main body 2 gradually decreases in the decorative plate 4 portion. For this reason, in the plan view, the left side surface 2S of the main body 2 is gently curved in an S shape and the right side surface 2S is gently curved in an inverted S shape in plan view.

  Thus, since the horizontal width of the depth direction center portion 2b is larger than that of the back surface portion 2c, an inner overhang space is formed on the inner side of the side surface 2S of the depth direction center portion 2b.

  The decorative plate 4 is attached to a lid member 30 included in the main body 2 (see FIG. 2). The lid member 30 is attached to the casing 6 that covers the main body 2. As shown in FIG. 2, the casing 6 has a grid-like grill 6 b on the upper surface 2 </ b> U of the main body 2, and a first suction port 7 is formed in the grill 6 b.

  FIG. 5 is a perspective view of the indoor unit 1 as viewed from the lower left of the indoor unit 1. The main body 2 has the bottom surface of the casing 6 on the lower surface 2D. An air outlet 9 is formed on the bottom surface of the casing 6. The air outlet 9 is formed not only on the bottom surface 2D of the main body 2 but also on the front surface 2F, which will be described later. A flap 10 is provided at the air outlet 9 in order to adjust the vertical wind direction of the conditioned air blown out from the air outlet 9. When the operation is stopped, the flap 10 closes the air outlet 9 as shown in FIG. Moreover, the positions of the surfaces of the flap 10 and the casing 6 are aligned so that the surface of the flap 10 and the surface of the bottom surface of the casing 6 are flush with each other with the flap 10 closing the air outlet 9. In addition, a circular push button switch 11 having a relatively large diameter is provided on the left side of the bottom surface 2D of the main body 2 so as to follow the shape of the side surface 2S. The push button switch 11 turns the power on and off. In addition to turning the power on and off, the push button switch 11 is made of a material that transmits infrared light, and is configured to receive the infrared light transmitted through the push button switch 11 inside the main body 2. The ring 11a around the push button switch 11 is made of a material that transmits light, and can transmit the light of the light emitting diode provided inside the main body 2 to the outside. The arrangement of the infrared light receiving unit and the light emitting diode will be described later.

<Appearance of indoor unit with movable panel raised>
The movable panel 3 rises to the highest point during operation and descends to the lowest point when operation is stopped. Therefore, the movable panel 3 of the indoor unit 1 is stationary at two places, the highest point and the lowest point. 6 to 10 show a state in which the indoor unit 1 is in an operating state and the movable panel 3 is lifted up. 6 is a front view of the indoor unit 1, FIG. 7 is a side view of the indoor unit 1, FIG. 8 is a plan view of the indoor unit 1, and FIG. 9 shows the indoor unit 1 in front left of the indoor unit 1. FIG. 10 is a perspective view of the indoor unit 1 as viewed from the upper left rear side of the indoor unit 1.

  As shown in FIG. 6, when the movable panel 3 moves to the uppermost point, the first opening 9a formed below the casing 6 can be seen from the front. The air outlet 9 described above with reference to FIG. 5 includes the first opening 9 a and the second opening 9 b that is formed on the bottom surface of the casing 6 but can be covered with the flap 10. The first opening 9a and the second opening 9b are connected to each other and correspond to an outlet of an outlet passage (not shown) provided in the main body 2 and directed obliquely downward. In FIG. 6, the second opening 9 b is closed by the flap 10, but in FIG. 9, the second opening 9 b is opened because the flap 10 rotates and is positioned in the outlet passage. During operation, in order to open at least the first opening 9a, the lower end 3c of the movable panel 3 rises above the position of the upper side of the first opening 9a.

  Further, in a state where the lower end portion 3c of the movable panel 3 is located above the upper side of the first opening 9a, the human detection sensor 12 provided on the front surface 6a of the casing 6 appears so that human detection is possible. Become.

  When the movable panel 3 moves upward, the distance that moves forward and backward of the lower end portion 3c is small, and the distance that the upper end portion 3d moves forward is increased. Therefore, as shown in FIG. 7, when viewed from the side, the upper end portion 3d moves forward relative to the lower end portion 3c, and the movable panel 3 tilts forward. Thereby, an opening 13 is formed between the back surface 3 e of the movable panel 3 and the front surface 6 a of the casing 6. In FIG. 6 and FIG. 9, the second suction port is provided on the front surface 6 a of the casing 6, although it cannot be seen behind the movable panel 3. By forming the opening 13, room air can be sucked from the second suction port provided in the front surface 6 a of the casing 6. In addition, about a 2nd suction inlet, it shows in FIG. 16 mentioned later.

  In this way, since the indoor air is sucked downward from the opening 13 whose upper portion is widened like a funnel, the movable panel 3 is sandwiched near the lower end 3c of the movable panel 3 and sucked from the second suction port. The flow of indoor air that is turned and the flow of conditioned air that is blown out from the air outlet 9 are generated. Therefore, if the gap between the lower end 3c of the movable panel 3 and the front surface 6a of the casing 6 is large, conditioned air is drawn into the flow of room air, or conversely, the room air flowing on the back side of the movable panel 3 is harmonized. It may also cause problems such as dew condensation due to being drawn into the air flow. Therefore, when the movable panel 3 reaches the uppermost point, an operation is performed in which the lower end portion 3 c of the movable panel 3 is drawn toward the front surface 6 a of the casing 6.

  For the same reason, it is not preferable that a gap is generated between the lower end 3 c of the movable panel 3 and the front surface 6 a of the casing 6 due to the deformation of the movable panel 3. The movable panel 3 is made of a relatively rigid and light material such as plastic or a laminate of aluminum and plastic. However, since the rigidity of the plate-like member constituting the movable panel 3 is not sufficient to prevent the occurrence of such a gap, for the purpose of further increasing the rigidity, as shown in FIGS. A hollow metal rod 14 made of metal or the like is attached to the back side of the front surface portion 3 a of the movable panel 3.

<Support of movable panel>
As shown in FIGS. 8 and 10, the movable panel 3 is supported by a panel support arm 15 in which a rack gear is formed. The panel support arm 15 moves when a driving force is transmitted from a stepping motor described later to the rack gear.

  As described above, in order to give the indoor unit 1 an excellent appearance, the movable panel 3 configured to cover not only the entire front surface 2F of the main body 2 but also a part of the side surface 2S of the main body 2 is heavy. It becomes. In addition, since the allowable deformation amount is limited in order to suck room air from the second suction port, high rigidity is required, and the movable panel 3 tends to further increase its own weight. In addition to simply sliding the movable panel 3 up and down, a complicated operation is required, so that the burden on the support member of the movable panel 3 such as the panel support arm 15 increases.

  FIG. 11 shows a side view of the indoor unit 1 with the movable panel 3 removed. The state shown in FIG. 11 is obtained by removing the movable panel 3 from the panel support arm 15 from the state of FIG. 7 where the movable panel 3 is stationary at the uppermost point.

  12, 13, and 14, in order to explain the structure and operation of the panel support arm 15, a portion including the panel support arm 15 and its peripheral parts is extracted and shown. 12 shows a state where the movable panel 3 is at the lowest point (closed state) when the operation is stopped, and FIG. 14 shows a state where the movable panel 3 is at the highest point (open state) during the operation. Is shown). FIG. 13 shows a state during the transition from the state of FIG. 12 to the state of FIG. 14 or conversely, the state of the transition from the state of FIG. 14 to the state of FIG.

  The movable panel 3 shown in FIGS. 12 to 14 has a laminated structure of an aluminum plate 3m and a plastic plate 3n. A first connecting portion 16a and a second connecting portion 16b for connecting to the panel support arm 15 are provided on the back side of the plastic plate 3n. The first connecting portion 16 a provided in the vicinity of the upper end portion 3 d of the movable panel 3 is connected to an opening portion 15 a provided in the upper portion of the panel support arm 15. On the other hand, the second connecting portion 16b is provided at a height of about one quarter of the height of the movable panel 3 with respect to the lower end portion 3c of the movable panel 3. The second connecting portion 16 b is connected to a connecting portion 15 b provided at the lower part of the panel support arm 15. The movable panel 3 and the panel support arm 15 are configured such that they can be attached and detached by performing or uncoupling the above-described connection.

  The panel support arm 15 is formed of a plate-like component similar to a triangular ruler whose width decreases toward the top, and is a long hole formed with the same angle with respect to the side 15c to which the movable panel 3 is in close contact. The first sliding opening 15d and the second sliding opening 15e are formed. A roller 15f is attached to the apex of the panel support arm 15 farthest from the side 15c.

  The panel support arm 15 is housed in a thin case 17 configured by combining two plate-like members. One plate-like member 18 constituting the thin case 17 has a columnar first support member 20a fitted in the first sliding opening 15d so that the first sliding opening 15d can slide, and a first The cylindrical second support member 20b fitted in the second sliding opening 15e is screwed so that the two sliding openings 15e can slide. A guide portion 18 a that moves while the roller 15 f hits is formed around the plate-like member 18.

  The guide portion 18a includes a guide wall 18a1 that extends linearly and a recess 18a2 that continues to the top of the guide wall 18a1. The recess 18a2 is located farther than the side 15c with respect to the straight line extending the guide wall 18a1. The second sliding opening 15e includes a long upper opening 15e1 and a very short lower opening 15e2. The upper opening 15e1 extends toward the side 15c as it goes upward, whereas the lower opening 15e2 extends away from the side 15c as it goes upward.

  Since the guide portion 18a has the concave portion 18a2 and the second sliding opening 15e has the lower opening 15e2, the movable panel 3 moves in a complicated manner. When the second support member 20b slides with the upper opening 15e1 of the second sliding opening 15e facing from the top to the bottom, the upper end 3d of the movable panel 3 moves to the upper side of the casing 6 while the movable panel 3 moves upward. While greatly separated from the front surface 6a, the lower end 3c is slightly separated from the front surface 6a. When the second support member 20b enters the lower opening 15e2, the roller 15f enters the recess 18a2. At that time, the panel support arm 15 moves while rotating around the first support member 20a, and the upper end portion 3d of the movable panel 3 moves so as to be further away from the front surface 6a of the casing 6, while the lower end portion Conversely, 3c moves to approach the front surface 6a. The trajectory of the movement of the movable panel 3 is shown in FIG.

  The panel support arm 15 moves when a driving force is transmitted from the driven gear 21 shown in FIGS. 12 to 14 to the rack gear of the panel support arm 15. Power is transmitted to the driven gear 21 from a driving gear 22 connected to a driving shaft of a stepping motor described later. The driven gear 21 and the driving gear 22 are attached inside the thin case 17, and the driven gear 21 meshes with the rack gear of the panel support arm 15.

  The operation of mounting the heavy movable panel 3 as described above and the panel support arm 15 that performs complicated movement so as to operate properly becomes difficult when other members are densely arranged around the periphery. Therefore, in the indoor unit 1, members such as the panel support arm 15 are provided in the internal overhang space of the central portion 2 b in the depth direction of the main body 2.

<Installation location of panel support arm 15>
Next, the installation place of the panel support arm 15 and its surrounding members described with reference to FIGS. 12 to 14 will be described. 16 and 17 show a state where the movable panel 3 of the indoor unit 1 is removed. FIG. 16 is a front view of the indoor unit 1, and FIG. 17 is a plan view of the indoor unit 1.

  As shown in FIG. 16, the second suction port 27 is provided in the front surface 6 a of the casing 6. Similar to the first suction port 7, the second suction port 27 slightly leans to the right of the main body 2. From this, it can be seen that the force that the movable panel 3 receives from the room air sucked into the second suction port 27 is slightly larger on the right side of the main body 2. Even when the force applied to the movable panel 3 is different on the left and right, the position supported by the panel support arms 15 provided on the left and right should not be shifted. Therefore, it is important to attach the panel support arm 15.

  The panel support arm 15 is disposed at a position corresponding to the overhang regions 2d and 2e shown in FIG. In the front view, the positions of the overhang regions 2 d and 2 e overlap the position of the side surface portion 3 b of the movable panel 3. A lid member 30 is attached to the projecting regions 2 d and 2 e, and the main body 2 has a shape projecting laterally from the casing 6 by the amount of the lid member 30. The lid member 30 is fixed to the casing 6 with screws 31. The panel support arm 15 and its surrounding members described in FIGS. 12 to 14 are fixed to the casing 6 by screws 32.

  AA sectional view of FIG. 16 is shown in FIG. Moreover, the state which took off the bis | screw 31 and removed the cover member 30 is shown in FIG. 20 and FIG. FIG. 20 is a perspective view of the indoor unit 1 as viewed from the upper left and obliquely upward, and FIG. 21 is a side view of the indoor unit 1 as viewed from the left.

  As shown in FIG. 18, a large internal overhang space 33 is formed between the lid member 30 and the casing 6 in a portion corresponding to the central portion 2 b in the depth direction. The stepping motor 25 can be arranged outside the thin case 17 because of the internal overhang space 33. The case 17 is configured by combining a plate member 18 and a transparent plate member 19. A stepping motor 25 is fitted into the transparent plate member 19. As can be seen from FIG. 18, the lid member 30 has a shape obtained by vertically dividing a flat bottom-bulged circular cylinder having a cross-section like pear, and a relatively extra space is formed inside the main body 2. It has not been. For example, if the shape is as shown by a two-dot chain line, an extra large space 34 is formed near the back surface 2B of the main body 2. It is possible to finish the shape of the side surface 2S of the main body 2 so that the occupant feels less pressure by scraping off such extra space and smoothly curving the shape of the bulged lid member 30. is made of.

  When the lid member 30 is removed, the structure around the stepping motor 25 and the panel support arm 15 is three-dimensionally exposed as shown in FIG. Thereby, the operation | work which attaches the structure around the stepping motor 25 and the panel support arm 15 to the side surface of the casing 6 becomes easy. That is, the plate-like member 18 can be screwed to the casing 6 together with the thin case 17 to which the stepping motor 25 is attached, and the flat thin case 17 is attached to a flat place like the side wall 6c of the casing 6. Simple.

  Thus, even after the assembly is completed, if the lid member 30 is removed, the entire area around the stepping motor 25 and the panel support arm 15 can be three-dimensionally exposed. For this reason, the restriction on the direction in which the tool is inserted is reduced, and the maintenance work is facilitated.

  Further, since the transparent plate-like member 19 covers the outer side surface of the panel support arm 15, the movement of the drive components such as the panel support arm 15, the driven gear 21, the drive gear 22, and the stepping motor 25 is made transparent. It can be confirmed by seeing through the shaped member 19.

  In order to detect the position of the panel support arm 15, the case 17 is provided with a limit switch 26. A plate-like piece 28 with a step is attached to the panel support arm 15 (see FIG. 21), and the plate-like piece 28 moves together with the panel support arm 15. When the limit switch 26 detects the step of the plate-like piece 28, the position detection by the limit switch 26 is performed.

  As described above, in the support structure of the movable panel 3, the support of the movable panel 3 is assisted by the roller 15f entering the recess 18a2. Once the roller 15f enters the recess 18a2, in order for the roller 15f to exit the recess 18a2, the height difference between the recess 18a2 and the guide wall 18a1 must be exceeded, so that the support can be assisted. Therefore, it is necessary for the limit switch 26 to detect that the panel support arm 15 has reliably moved to the position where the roller 15f enters the recess 18a2 (has reached the highest point). For this reason, it is necessary to accurately set the limit switch 26 and the plate-like piece 28 at the correct arrangement position. By using the overhanging space 33, the limit switch 26 and the plate-like piece 28 can be installed together with the case 17 in which the panel support arm 15 is housed, so that the mounting can be performed easily and accurately. Further, since members around the case 17 are three-dimensionally exposed during maintenance, adjustment by tools and human hands and replacement of parts can be easily performed.

  In addition to the stepping motor 25, a printed wiring board 40 (functional component) on which an electrical component is mounted is disposed in addition to the stepping motor 25 over the internal overhanging space 33 and a space adjacent thereto. The printed wiring board 40 is disposed above the push button switch 11. A light receiving element 41 that receives infrared rays is mounted on the printed wiring board 40 and a control unit thereof is formed. The light receiving element 41 is disposed immediately above the center point of the push button switch 11. The attachment and maintenance of such a printed wiring board 40 are facilitated in the same manner as the attachment and maintenance of functional components such as the panel support arm 15 and the stepping motor 25 are facilitated.

  Further, above the ring 11 a around the push button switch 11, light emitting diodes 42 of different emission colors are arranged. The light emitting diode 42 is also mounted on the printed wiring board 40. And since the difference in operation, such as heating and cooling, is transmitted in the luminescent color, the ring 11a around the push button switch 11 can be illuminated in various colors. Maintenance of such light emitting diodes 42 and light receiving elements 41 is also maintenance of functional parts.

  Next, the proximity space will be described with reference to FIG. FIG. 19 is a cross-sectional view of the state in which the panel support arm 15 and its peripheral members and components such as the stepping motor 25 are removed from FIG. An alternate long and short dash line in the drawing extends forward from the left end of the back surface portion 2c. In the case of the indoor unit 1, a part on the back side of the lid member 30 also constitutes the back surface portion 2c. The side surface 2 </ b> S of the main body 2 is a lid member 30, and a space is formed between the side wall 6 c of the casing 6 and the lid member 30. Originally, the space formed between the side wall 6c and the lid member 30 is a bulged space. However, in order to clarify the scope of the term, the space outside the one-dot chain line in the figure is internally extended. A space 33 is defined. However, when a functional component is arranged in the adjacent space 33a that is continuously connected to the internal overhanging space 33 and is close to the internal overhanging space 33, the same operation as that in the case of arranging in the internal overhanging space 33 can be expected. Even if it is close to the internal overhanging space 33, for example, the space inside the casing 6 beyond the side wall 6c cannot be expected to perform the same function as the internal overhanging space 33, and is not the adjacent space 33a. Also, even if it is continuous, you cannot expect the same work if it is too far away. Therefore, the thickness of the proximity space 33a (the distance from the inner overhanging space 33 to the farthest place) is preferably about 2 to 4 cm in consideration of the size of the functional components used in the normal wall-mounted indoor unit 1. More preferably, it is less than 2 cm.

<Structure of lid member>
FIG. 20 and FIG. 23 show a six-side view and a step view of the left-side cover member 30 constituting the left side of the indoor unit 1. 20A is a front view of the lid member 30, FIG. 20B is a right side view, FIG. 20C is a rear view, and FIG. 20D is a left side view. FIG. 23A is a plan view, FIG. 23B is a bottom view, and FIG. 23C is a cross-sectional view along the line BB.

  As already described, the lid member 30 has a three-dimensional shape, and the lid member 30 is disposed on the side surface 2S of the main body 2, whereby the internal overhang space 33 is formed. In order to reduce the outer shape of the main body 2 of the indoor unit 1 as much as possible, it is preferable not to provide an extra space inside the main body 2. Therefore, the shape of the lid member 30 is the stepping motor 25 so that the stepping motor 25 can be accommodated. In the vicinity of, a smooth convex curve is drawn. The shape of the lid member 30 in plan view will be described with reference to FIG. 23A. First, the side surface gradually expands in the width direction of the main body 2 from the start end on the back surface 2B side toward the end on the front surface 2F side. Next, a portion from about one third to the front surface 2F draws a substantially semicircular arc. The starting end of the back surface 2B and the terminal end of the front surface 2F are at substantially the same position in the width direction (lateral direction) of the main body 2. Therefore, an internal overhang space 33 sufficient to accommodate the functional parts is formed inside the substantially semicircular arc. If it sees in detail, the level | step difference will be formed in the place where the cover member 30 protrudes most. This step is formed in order to make the outer surfaces of the movable panel 3 and the decorative plate 4 flush with each other.

  Comparing FIG. 23A, FIG. 23B, and FIG. 23C, it can be seen that the lid member 30 has a linear silhouette in the height direction of the main body 2. This largely depends on the design. For example, if the internal overhanging space 33 at the top of the main body 2 has a margin, the shape of the upper surface of FIG. 23 (a) is smaller than the shape of the lower surface of FIG. 23 (b). It is also possible to take such a configuration. By wrapping functional parts such as the stepping motor 25 provided in the internal overhanging space 33 with a soft curve in a side outline such as the lid member 30 while eliminating unnecessary internal space, the feeling of pressure given to the occupant is reduced. can do. At the same time, the assembly of functional components arranged in the internal overhanging space 33 is facilitated.

  The lid member 30 is provided with a latching claw 35 on the back side. The lid member 30 can be easily attached to the casing 6 by inserting the latching claw 35 into a predetermined hole of the casing 6, inserting the screw 31 into the hole 36 and screwing it into the screw hole of the casing 6. A rib 37 is formed on the back side of the lid member 30 to reinforce the lid member 30.

<Modification>
(1) In the said embodiment, it comprises with the cover member 30 which can remove the side surface 2S of the main body 2. FIG. However, the side surface 2S of the main body 2 may not be removable. For example, the side surface 2S of the main body 2 may be configured by the casing 6. In this case, the convenience of maintenance is reduced, but the maintenance is easier than in the prior art, and the attachment work is easier than in the past. Conventionally, when the casing is removed, the parts that are dense on the side surface spread in a flat shape, whereas if the side surface shape that protrudes as in the above embodiment is provided, the parts that are densely matched to the protruding side surface shape are obtained. spread. Therefore, by curving the side surface in a convex manner as in the above embodiment, the densely shaped parts become three-dimensional along the side surface shape, so that a portion where tools and human hands can easily enter can be formed. As a result, the efficiency of the installation work, and hence the maintenance work, is improved.

  (2) In the above embodiment, the internal overhang space 33 is formed across the entire height direction so as to reach the upper surface 2U from the lower surface 2D in the height direction of the main body 2. However, the same effect may be obtained even if it is not formed over the entire height direction of the internal overhang space 33. For example, the side wall 6c of the casing 6 may be extended to the vicinity of the lid member 30 when the panel support arm 15 is downsized and there is room in the space. Alternatively, the overhanging portion where the margin is generated is eliminated, the inner overhanging space 33 is formed halfway in the height direction, and the width of the main body 2 is narrowed only in a place where the inner overhanging space 33 is not provided. The design can also be taken.

  (3) In the said embodiment, the side surface 2S of the main body 2 is comprised with the cover member 30 of 1 sheet over the whole height direction. However, the lid member 30 can be divided in the middle, and can be configured such that only a part of the side surface 2S can be removed. For example, the lid member can be fitted only in the upper half, and the lower half can be constituted by a casing.

<Features>
(A)
In the wall-mounted indoor unit 1, the stepping motor 25 is disposed in the internal overhanging space 33 of the main body 2. Conventionally, parts are packed in the casing for the purpose of making the shape of the indoor unit as small as possible. Therefore, since a substantially rectangular parallelepiped main body has a flat side surface, other parts are provided around the stepping motor 25. It is common to be crowded. On the other hand, since the periphery of the stepping motor 25 of the above-described embodiment is covered with the curved lid member 30, there is no space for placing other components, and almost the entire stepping motor 25 is exposed. Thereby, the attaching operation of the stepping motor 25 is facilitated. On the other hand, since the shape of the side surface 2S of the main body 2 is a shape that protrudes into a smooth curved surface, it is possible to reduce the feeling of pressure compared to the case where the width of the main body 2 is widened.

  Here, the stepping motor 25 is an arm drive motor for driving the panel support arm 15. Since it is important that the arm drive motor of the panel support arm 15 that must be supported so that the movable panel 3 is not displaced, it is important that the arm drive motor is arranged at a correct position. Improvement effect is expected. The arm drive motor is a kind of movable part. The movable parts of the indoor unit 1 must be suitable for a quiet space with few moving things such as a living room. Since such a movable part has a function of moving, it is generally difficult to perform an attaching operation as compared with a stationary part. Such a tendency is remarkable particularly when the movable part has to transmit or generate a large driving force. The effect of improving the work efficiency due to the ease of mounting such moving parts is great. The movable component is a kind of functional component. Since the functional component has some function, it is required to be mounted so that the function is exhibited. Therefore, the working efficiency is greatly improved by facilitating the mounting of such functional parts.

  In particular, the curved lid member 30 surrounding the stepping motor 25 can be removed. Since the lid member 30 can be removed, when the maintenance of the stepping motor 25 is performed, there is no need to remove the casing 6 as in the conventional case, and the maintenance becomes easy. Further, even in the work of attaching a functional component such as the stepping motor 25, the work can be performed with the casing 6 covered. For example, the heat exchanger has a plurality of fins, and working with the casing 6 not covered may cause injury to the operator, but prevents such problems and improves the ease of installation. Can be made.

(B)
The panel support arm 15 supports the movable panel 3 that covers the entire front surface 2F of the main body 2 and also covers a part of the side surface 2S of the main body 2. In the above embodiment, the panel support arm 15 is disposed in the proximity space 33a. Therefore, it is possible to perform an operation of attaching together with the stepping motor 25 which is a functional component disposed in the internal overhanging space 33. Thereby, the panel support arm 15 and the stepping motor 25 can be easily attached at an accurate position, the process of the attachment work is simplified, and the work efficiency is improved. In the above embodiment, the panel support arm 15 is disposed in the proximity space 33a. However, the panel support arm 15 may be disposed in the internal extension space 33 or in the internal extension space 33 and the proximity space 33a. Similarly, work efficiency is improved.

  The panel support arm 15 is covered with a transparent plate member 19, and the state of the panel support arm 15 moving in the case 17 can be observed through the plate member 19. Therefore, not only the panel support arm 15 but also the operation state of the panel support arm 15 at the time of maintenance can be easily confirmed. Further, the operation of the driven gear 21 and the drive gear 22 can be confirmed through the transparent plate-like member 19, and the operation of the stepping motor 25 can be indirectly confirmed from these operation confirmations.

(C)
The light receiving element 41 (light receiving unit) is disposed in the internal overhanging space 33. Then, the infrared light transmitted through the push button switch 11 is received. Since the light receiving element 41 is away from the outside of the main body 2, it is difficult to be affected by an environmental change in the room. Since the printed wiring board 40 having the light receiving element 41 and the control unit is disposed in the internal overhanging space, it is easy to perform the attaching and detaching operations of the light receiving element 41 and the printed wiring board 40 having the control unit.

DESCRIPTION OF SYMBOLS 1 Wall mounted type indoor unit 2 Main body 2a Front part 2b Depth direction center part 2c Rear part 3 Movable panel 6 Casing 15 Panel support arm 25 Stepping motor 30 Lid member 40 Printed wiring board 41 Light receiving element

JP 2005-98671 A

Claims (6)

A back surface portion (2c) facing the side wall surface to be attached, a depth direction center portion (2b) provided in front of the back surface portion and having a lateral width larger than that of the back surface portion, and provided in front of the depth direction center portion. A body (2) having a front surface (2a);
Functional components (SP2, SP3, 33) disposed in an overhanging space (SP2, SP3, 33) formed between the end surface (SF1, SF2) of the front space (SP1) of the back surface portion and the side surface of the central portion in the depth direction. 25) and a wall-mounted indoor unit of an air conditioner. The main body has a lid member (30) that forms at least a side surface of the central portion of the depth.
The wall-mounted indoor unit of the air conditioning apparatus according to claim 1. A movable panel (3) attached to the body;
The functional component is a driving component for generating power to drive the movable panel or transmitting power.
The wall-mounted indoor unit of the air conditioning apparatus according to claim 1 or 2. The drive component includes an arm drive motor (25) that generates a drive force transmitted to the movable panel.
The wall-mounted indoor unit of the air conditioning apparatus according to claim 3. The movable panel covers a part of the side surface and the front surface of the main body when stopped,
In order to support the movable panel, it further comprises a panel support arm (15) disposed in the internal overhanging space and / or a close space (33a) continuously connected in the vicinity of the periphery of the internal overhanging space,
The arm drive motor is disposed outside the side of the panel support arm,
A wall-mounted indoor unit for an air conditioner according to claim 3 or 4. A light receiving part (41) disposed in the adjacent space (33a) continuously connected to the inner overhanging space and / or the vicinity of the inner overhanging space;
A control unit (40) that is provided in the internal overhanging space and / or the adjacent space and controls the light receiving unit;
A wall-mounted indoor unit for an air conditioner according to any one of claims 1 to 5.

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