JP6680282B2 - Air conditioner indoor unit - Google Patents

Description

  The present invention relates to an air conditioning indoor unit.

  In an air conditioning indoor unit, for example, a type in which the front surface of the indoor unit main body is widely opened is commonly used in order to facilitate attachment / detachment work during maintenance of the air cleaning filter. In the indoor unit disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 10-274423), the user rotates the panel and takes out the filter while supporting the panel at the rotated position, or uses a pivot for the rotation. The filter is taken out after detaching it from the bearing.

  However, the work performed by the user while holding the panel is likely to be unstable, and the spindle and the bearing may be damaged. In order to eliminate this, a method of holding the panel at the maintenance position by a holding mechanism using frictional force can be used, but in that case, when the panel is rotated upward to open the front of the indoor unit main body, The indoor unit itself interferes.

  Then, the subject of this invention is providing an air conditioning indoor unit which does not interfere with a panel and an indoor unit main body, when moving a panel to a maintenance position.

An air conditioning indoor unit according to a first aspect of the present invention includes an indoor unit main body, a first panel, and a second panel. The first panel is held at a first position that covers the front surface of the indoor unit body, and at the time of maintenance, the lower end is held at a maintenance position separated from the front surface of the indoor unit body. The second panel is arranged directly above the first panel. The first panel moves from the first position to the first position through at least a first motion in which the upper end of the first panel does not come into contact with the lower part of the second panel even when the first panel moves, and a second motion different from the first motion . The first panel moves to a maintenance position which is a position diagonally above the position, and in the first operation, the first panel moves away from the first position to a second position in front of the second panel.

  At the time of maintenance, the front of the indoor unit main body is widely opened to facilitate the work, but at this time, the lower end of the first panel is rotated upward to open the front of the indoor unit main body, so the upper end of the panel interferes with the indoor unit main body. To do.

  However, in this air conditioning indoor unit, instead of moving the first panel to the maintenance position all at once, the first panel is moved to the second position away from the indoor unit body and then to the maintenance position. It is possible to prevent interference between the upper end of one panel and the indoor unit body.

  An air conditioning indoor unit pertaining to a second aspect of the present invention is the air conditioning indoor unit pertaining to the first aspect, wherein the lower end of the first panel is separated from the indoor unit body at the second position.

  In this air conditioning indoor unit, if the user manually moves the first panel from the second position to the maintenance position, the lower end of the first panel is separated from the indoor unit body, so that the user's hand is easy to reach. , Easy to use.

An air conditioning indoor unit according to a third aspect of the present invention includes an indoor unit main body, a first panel, and a second panel. The first panel is held at a first position that covers the front surface of the indoor unit body, and at the time of maintenance, the lower end is held at a maintenance position separated from the front surface of the indoor unit body. The second panel is arranged directly above the first panel. The first panel moves from the first position to the maintenance position through at least the first operation in which the upper end of the first panel does not come into contact with the lower portion of the second panel even if the first panel moves up and the second operation different from the first operation. Then, in the first operation, the first panel moves away from the first position to the second position in front of the second panel. The first operation is an operation in which the first panel moves obliquely upward from the first position while maintaining the posture to reach the second position. The second operation is an operation of rotating the lower end of the first panel at least at the second position in a direction away from the front surface of the indoor unit main body to reach the maintenance position.

  An air conditioning indoor unit pertaining to a fourth aspect of the present invention is the air conditioning indoor unit pertaining to any one of the first to third aspects, wherein in the second operation, the lower end of the first panel is higher than the upper end. It is far from the main body.

  In this air conditioning indoor unit, when the user performs maintenance such as filters from the front of the indoor unit main body, the indoor unit main body is viewed from diagonally below, so the lower end of the first panel is closer to the indoor unit main body than the upper end. It is easier to perform maintenance work if it is far away.

  An air conditioning indoor unit pertaining to a fifth aspect of the present invention is the air conditioning indoor unit pertaining to any one of the first aspect to the fourth aspect, wherein the first panel stops at the second position.

  In this air conditioning indoor unit, the operation from the first position of the first panel to the maintenance position is different from the "operation from the first position to the second position" and the "operation from the second position to the maintenance position". In the case of using the mechanism, by temporarily stopping at the second position, switching between the former mechanism and the latter mechanism becomes easy.

  An air conditioning indoor unit pertaining to a sixth aspect of the present invention is the air conditioning indoor unit pertaining to any one of the first to fifth aspects, further comprising a panel transfer mechanism. The panel transport mechanism guides the first panel to at least the second position.

  In this air conditioning indoor unit, the first panel always passes through the second position by the panel transfer mechanism, so that it is possible to prevent the user from moving the first panel to the wrong position.

  An air conditioning indoor unit pertaining to a seventh aspect of the present invention is the air conditioning indoor unit pertaining to the sixth aspect, wherein the panel transport mechanism automatically transports the panel to the second position.

  In this air conditioner indoor unit, for example, when the load for transporting the first panel from the first position to the second position is large, it is easier to use the load on the panel transport mechanism because the burden on the user can be reduced. Is good.

  An air conditioning indoor unit pertaining to an eighth aspect of the present invention is the air conditioning indoor unit pertaining to the sixth aspect or the seventh aspect, further comprising an operating section for starting the operation of the panel transport mechanism.

  In this air conditioner indoor unit, the presence of the operation unit can make the user recognize that the operation is automatic from the first position to the second position of the panel, and can encourage the use.

  An air conditioning indoor unit pertaining to a ninth aspect of the present invention is the air conditioning indoor unit pertaining to the sixth aspect, wherein the panel transport mechanism has a lower connecting portion and a lock mechanism. The lower connection part is connected to a lower part of the first panel. The lock mechanism switches the lower portion of the first panel and the lower connecting portion to either the connected state or the non-connected state at the second position.

  In this air conditioner indoor unit, when the user manually tries to convey the first panel, both ends of the first panel are pulled and pulled toward the front, so the first panel may be separated from the panel conveying mechanism. By providing the first panel, the first panel can be conveyed to the second position without coming off.

  An air conditioning indoor unit pertaining to a tenth aspect of the present invention is the air conditioning indoor unit pertaining to the ninth aspect, wherein a lock mechanism is arranged on the panel.

  An air conditioning indoor unit pertaining to an eleventh aspect of the present invention is the air conditioning indoor unit pertaining to the ninth aspect or the tenth aspect, wherein the panel transfer mechanism further comprises an upper connecting portion that is connected to the upper portion of the first panel. ing.

  In this air conditioner indoor unit, when the lower portion of the first panel and the lower connecting portion are in an unconnected state at the second position, the first panel is allowed to rotate around the upper connecting portion.

  An air conditioner indoor unit pertaining to a twelfth aspect of the present invention is the air conditioner indoor unit pertaining to the first aspect, wherein the first panel undergoes a second operation from a position where its upper end does not contact the lower portion of the second panel. Move to position.

  In this air conditioning indoor unit, it is possible to prevent interference between the upper end of the first panel and the lower end of the second panel.

  In the air conditioning indoor unit pertaining to the first aspect of the present invention, instead of moving the first panel to the maintenance position all at once, the first panel is moved to a second position away from the indoor unit body and then to the maintenance position. By doing so, it is possible to prevent interference between the upper end of the first panel and the indoor unit body.

  In the air conditioning indoor unit pertaining to the second aspect of the present invention, if the user manually moves the first panel from the second position to the maintenance position, the lower end of the first panel will move away from the indoor unit body. It is easy for users to enter and easy to use.

  In the air conditioning indoor unit pertaining to the third aspect of the present invention, by moving the first panel to the second position away from the indoor unit main body and then to the maintenance position, the upper end of the first panel and the indoor unit main body are separated. Interference can be prevented.

  In the air conditioning indoor unit pertaining to the fourth aspect of the present invention, when the user performs maintenance such as the filter from the front of the indoor unit main body, the indoor unit main body is seen from diagonally below, so the lower end of the first panel is It is easier to perform maintenance work if it is farther from the indoor unit body than at the top.

  In the air conditioning indoor unit pertaining to the fifth aspect of the present invention, the operation from the first position to the maintenance position of the first panel is referred to as "operation from the first position to the second position" and "from the second position to the maintenance position". When different mechanisms are used for each of the "operations", the former mechanism and the latter mechanism can be easily switched by temporarily stopping at the second position.

  In the air conditioning indoor unit pertaining to the sixth aspect of the present invention, the first panel always passes through the second position by the panel transfer mechanism, so it is possible to avoid the user moving the first panel to the wrong position. .

  In the air conditioner indoor unit according to the seventh aspect of the present invention, for example, when the load for transporting the panel from the first position to the second position is large, it is easier for the user to bear the load on the panel transport mechanism. It is possible and easy to use.

  In the air conditioning indoor unit pertaining to the eighth aspect of the present invention, the presence of the operation unit can make the user recognize that the operation is automatic from the first position to the second position of the panel, and can encourage the use. .

  In the air conditioner indoor unit according to the ninth aspect and the tenth aspect of the present invention, when the user manually attempts to convey the first panel, the first panel is held by both ends and pulled toward the front panel. Although there is a possibility that the first panel will be separated from the first panel, the first panel is transported to the second position without being disengaged by providing the lock mechanism.

  In the air conditioning indoor unit pertaining to the eleventh aspect of the present invention, when the lower portion of the first panel and the lower connecting portion are in an unconnected state at the second position, the first panel rotates around the upper connecting portion. Is acceptable.

  In the air conditioning indoor unit pertaining to the twelfth aspect of the present invention, it is possible to prevent interference between the upper end of the first panel and the lower end of the second panel.

The perspective view of an air conditioning indoor unit at the time of an operation stop. The perspective view of the air-conditioning indoor unit in preparation for operation. The side view of an air conditioning indoor unit at the time of operation stop. The side view of the air conditioning indoor unit in preparation for operation. The perspective view of the air conditioning indoor unit at the time of driving. FIG. 3 is a vertical cross-sectional view of the air conditioning indoor unit when operation is stopped. FIG. 3 is a vertical cross-sectional view of the air conditioning indoor unit during operation preparation. FIG. 3 is a vertical cross-sectional view of the air conditioning indoor unit during operation. FIG. 3 is a vertical cross-sectional view of a panel transfer mechanism. The perspective view of the back side of a 1st panel. The expanded perspective view of the lock mechanism which connects a 1st panel and a movable link. FIG. 9B is an enlarged perspective view showing a released state of the lock mechanism of FIG. 9A. A partial perspective view of the air conditioning indoor unit when the first panel is in the maintenance position, FIG. 6 is a perspective view of the panel support mechanism before the operation of the support member. FIG. 6 is a perspective view of the panel support mechanism after the support member is operated. The front view of the panel support mechanism before the operation of the support member. The perspective view of the 1st wind direction adjustment blade at the time of operation stop. The perspective view of the 1st wind direction adjustment blade at the time of driving. Sectional drawing in the XX line of FIG. 13A. The expanded sectional view of a 1st recessed part. The expanded perspective view of a 2nd recessed part. The longitudinal cross-sectional view of the air conditioning indoor unit for showing the inclination angle of the 2nd wind direction adjustment blade. The perspective view of the 2nd wind direction adjustment blade. Sectional drawing in the YY line of FIG. 16A. It is an air conditioning indoor unit which concerns on a modification, Comprising: The longitudinal cross-sectional view of the said air conditioning indoor unit at the time of an operation stop. FIG. 11 is a vertical cross-sectional view of an air conditioning indoor unit according to a modified example, in which the panel transport mechanism is in operation before starting operation. It is an air conditioning indoor unit which concerns on a modification, Comprising: The longitudinal cross-sectional view of an air conditioning indoor unit at the time of driving | operation.

  An embodiment of the present invention will be described below with reference to the drawings. The following embodiments are specific examples of the present invention and do not limit the technical scope of the present invention.

(1) Outline of Air Conditioning Indoor Unit 1 FIG. 1A is a perspective view of the air conditioning indoor unit 1 when operation is stopped. FIG. 1B is a perspective view of the air conditioning indoor unit 1 being prepared for operation. 2A is a side view of the air conditioning indoor unit 1 when the operation is stopped. FIG. 2B is a side view of the air conditioning indoor unit 1 being prepared for operation. Further, FIG. 3 is a perspective view of the air conditioning indoor unit 1 during operation. 1A, 1B, 2A, 2B, and 3, the air conditioning indoor unit 1 is a wall-mounted type, and includes an indoor unit main body 10 and a front panel 11 that covers the front surface of the indoor unit main body 10.

  As shown in FIGS. 1A and 2A, when the air conditioning indoor unit 1 is stopped, the front surface of the air outlet 5 is covered by the first panel 111, and the lower surface of the air outlet 5 is formed by the first wind direction adjusting blade 30. Since it is covered, the interior of the indoor unit body 10 does not come into contact with the outside through the air outlet 5, and the design is good.

  In addition, as shown in FIGS. 1B and 2B, in the air conditioning indoor unit 1, the first panel 111 of the front panel 11 moves to the front upper side of the second panel 112 before the operation is disclosed, and the front of the air outlet 5 moves. Open up. After that, as shown in FIG. 3, the first airflow direction adjusting blade 30 located in the lower portion of the indoor unit body 10 rotates clockwise by 180 ° to open the lower portion of the air outlet 5.

(2) Indoor unit body 10
FIG. 4 is a vertical cross-sectional view of the air conditioning indoor unit 1 when the operation is stopped. In addition, FIG. 5 is a vertical cross-sectional view of the air conditioning indoor unit 1 being prepared for operation. FIG. 6 is a vertical cross-sectional view of the air conditioning indoor unit 1 during operation. 4, 5, and 6, the indoor unit main body 10 includes a main body casing 100 that forms an outer shell, a first airflow direction adjusting blade 30, a second airflow direction adjusting blade 40, and a vertical airflow direction adjusting blade that adjust the blowing direction of conditioned air. Equipped with 50. Further, inside the main body casing 100, the indoor heat exchanger 12, the fan 13, and the frame 16 are housed.

(2-1) Main body casing 100
The main body casing 100 forms a substantially rectangular three-dimensional space by the front surface portion 101, the upper surface portion 102, and the lower surface portion 103, and the indoor heat exchanger 12, the fan 13, the frame 16, and the filter 9 are accommodated in the three-dimensional space. ing. Further, the upper suction port 4A (see FIG. 10) including a plurality of slits is provided on the upper surface portion 102. Further, the air outlet 5 is provided from the lower portion of the front surface portion 101 to the front portion of the lower surface portion 103. A front suction port 4B is provided above the air outlet 5 in the front face portion 101.

  The indoor heat exchanger 12 and the fan 13 are attached to the frame 16. The indoor heat exchanger 12 exchanges heat with the passing air. The fan 13 applies the air taken in from the upper suction port 4A and the front suction port 4B to the indoor heat exchanger 12 to allow it to pass therethrough, and then blows it out to the air outlet 5. The air outlet 5 is provided with a first airflow direction adjusting blade 30 and a second airflow direction adjusting blade 40 that guide the air blown out in the vertical direction. The first wind direction adjusting blade 30 can be driven by a motor (not shown) to change the air blowing direction, and can also open and close the air outlet 5 on the lower surface 103 side.

  Further, a vertical airflow direction adjusting blade 50 that guides air in the left-right direction is provided on the upstream side of the first airflow direction adjusting blade 30 and the second airflow direction adjusting blade 40.

  The filter 9 is arranged between the front surface portion 101 and the upper surface portion 102 of the main body casing 100 and the indoor heat exchanger 12. The filter 9 removes dust contained in the air flowing toward the indoor heat exchanger 12.

  The indoor air is sucked into the fan 13 through the upper suction port 4A, the front suction port 4B, the filter 9, and the indoor heat exchanger 12 by the operation of the fan 13, and is blown from the fan 13 through the blowout flow path 18 and the blowout port 5. It

(2-2) First wind direction adjusting blade 30
The first wind direction adjusting blade 30 is stationary at a position covering the lower surface of the air outlet 5 when the operation is stopped. That position is called the initial position SP (see FIGS. 4 and 5). At this initial position SP, the surface on the lower side of the first wind direction adjusting blade 30 is always visible to the eyes while the operation is stopped, so that it has a good-looking surface, and is referred to as a decorative surface 30a here.

  Further, at the initial position SP, the surface on the inner side of the air outlet 5 faces downward during operation, and blown air flows along the surface. Therefore, it is referred to as a Coanda surface 30b here.

  The first wind direction adjusting blade 30 is rotated by a motor (not shown). The rotation axis (not shown) of the first airflow direction adjusting blade 30 is located above the front end of the first airflow direction adjusting blade 30 at the initial position SP by about half the dimension in the height direction of the outlet 5.

  Therefore, when the first wind direction adjusting blade 30 rotates clockwise by 180 °, the first wind direction adjusting blade 30 faces the decorative surface 30a upward and the Coanda surface 30b downward as shown in FIG. In the closed state, it projects forward from the upper part of the outlet 5.

  The details of the first airflow direction adjusting blade 30 will be described in the latter half, "(5) Detailed description of the first airflow direction adjusting blade 30".

(2-3) Second wind direction adjusting blade 40
The second wind direction adjusting blade 40 is located upstream of the outlet 5 and above the initial position SP of the first air direction adjusting blade 30 when the operation is stopped. For example, during cooling operation, as shown in FIG. 6, the second airflow direction adjusting blade 40 has an arc-shaped cross section, and the convex side surface 40a is directed downward and the concave side surface 40b is directed upward. In the heating operation, when generating a vertical airflow that directs the airflow downward, the second airflow direction adjusting blade 40 may have a posture in which the convex side surface 40a faces upward and the concave side surface 40b faces downward.

  The second wind direction adjusting blade 40 is rotated by a motor (not shown). The rotation axis (not shown) of the second wind direction adjusting blade 40 is located above the concave side surface 40b.

  The details of the second wind direction adjusting blade 40 will be described later in the section "(6) Detailed description of the second air direction adjusting blade 40".

(2-4) Vertical wind direction adjusting blade 50
As shown in FIGS. 4, 5, and 6, the vertical airflow direction adjusting blade 50 includes a plurality of blade pieces 501 and a connecting rod 503 that connects the plurality of blade pieces 501. Further, the vertical airflow direction adjusting blade 50 is arranged in the blowout flow path 18 at a position closer to the fan 13 than the first airflow direction adjusting blade 30 and the second airflow direction adjusting blade 40.

  The plurality of blade pieces 501 swing left and right around a state perpendicular to the longitudinal direction of the outlet 5 as the connecting rod 503 horizontally reciprocates along the longitudinal direction. The connecting rod 503 horizontally reciprocates by a motor (not shown).

(3) Front panel 11
As shown in FIGS. 1A, 2A, and 4, the front panel 11 is a member that covers the front surface of the indoor unit body 10. The front panel 11 is vertically divided and includes a first panel 111 located on the lower side and a second panel 112 located on the upper side of the first panel 111.

  The first panel 111 and the second panel 112 together form a design surface of the air conditioning indoor unit 1, and the first panel 111 and the second panel 112 have similar patterns, colors, or a combination thereof.

  In the air conditioning indoor unit 1, the position of the first panel 111 when the operation is stopped and the position of the first panel 111 when the operation is different are different.

  First, when the operation of the air conditioning indoor unit 1 is stopped, the surfaces of the first panel 111 and the second panel 112 are vertically arranged on the same vertical plane, and the surfaces of the first panel 111 and the second panel 112 are arranged. It creates a beautiful sensation as if they were integrated, so it looks good. The first panel 111 is set to be vertically longer than the second panel 112 when viewed from the front. The vertical length of the second panel 112 is set to be the same as the height dimension of the front surface of the air outlet 5.

  Further, the height positions of the lower end of the first panel 111 and the lower end of the air outlet 5 are close enough to make the user feel that they are the same when viewed from the front. Similarly, the height positions of the upper end of the second panel 112 and the upper end of the front surface portion 101 of the main body casing 100 are close enough to make the user feel that they match each other in a front view.

  Next, when the air conditioning indoor unit 1 starts to operate, the panel transport mechanism 21 causes the first panel 111 to move forward and upward at the same time, and when the first panel 111 is positioned at the upper end of the first panel 111 in a front view. The second panel 112 is moved to a height position aligned with the upper end. As a result, the front surface of the outlet 5 is opened, and a space for introducing air is formed between the front inlet 4B and the first panel 111.

  In addition, by aligning the height positions of the upper end of the first panel 111 and the upper end of the second panel 112, the front panel 11 does not project above the top surface of the indoor unit body 10 during operation, and the front panel 11 operates in front view. The product size at the time and the operation size at the time of stop do not change.

  Therefore, even if there is a restriction on the distance between the ceiling surface of the room and the upper surface of the air conditioning indoor unit 1, the service person can be installed without worrying about the product height during operation. It should be noted that the height positions of the upper end of the first panel 111 and the upper end of the second panel 112 do not have to be perfectly aligned in front view, and it is felt that the height positions are aligned in front view. It only needs to be close. Therefore, when viewed from the front, the upper end of the first panel 111 may be allowed to slightly protrude from the upper end of the second panel 112.

  As shown in FIGS. 2A and 2B, since the facing surfaces of the upper end of the side surface 111a of the first panel 111 and the lower end of the side surface 112a of the second panel 112 are inclined surfaces facing forward and upward, the first panel Even if 111 moves forward and rises at the same time, the upper end of the side surface 111a of the first panel 111 and the lower end of the side surface 112a of the second panel 112 do not interfere with each other.

(3-1) Panel transport mechanism 21
The first panel 111 can be moved forward and raised at the same time by the panel transfer mechanism 21, that is, can be moved diagonally upward. Here, for convenience of description, a position where the first panel 111 closes the front surface of the outlet 5 is referred to as a closed position CP (see FIG. 2A), and the first panel 111 is an upper end of itself and an upper end of the second panel 112 in a front view. The position at which the front surface of the outlet 5 is opened by moving to a height position where is aligned with is called an open position OP (see FIG. 2B).

  FIG. 7 is a vertical sectional view of the panel transport mechanism 21. 11A and 11B are perspective views of the panel support mechanism 24 before and after the operation of the support member 25, the panel transport mechanism 21 is also described, and will be referred to. 7, 11A and 11B, the panel transfer mechanism 21 is an application of a parallel crank mechanism. The panel transport mechanism 21 has a first crank 211, a second crank 212, a movable link 213, and a fixed link 214.

(3-1-1) First crank 211
The first crank 211 is a resin member, and both ends thereof are formed into a cylindrical shape or a cylindrical shape so as to function as a rotation shaft. The first rotary shaft 211a located on the first panel 111 side is rotatably held by the upper end bearing 213a of the movable link 213. In the present embodiment, as shown in FIG. 11A, the first rotating shaft 211a is a columnar protrusion.

  The second rotary shaft 211b located on the indoor unit body 10 side is connected to the output shaft of a motor (not shown). As shown in FIG. 7, the second rotating shaft 211b is provided behind the second panel 112. In this embodiment, a resin rod having a quadrangular cross section is inserted into the output shaft of the motor, and the second rotating shaft 211b has a square hole into which the resin rod is inserted.

  Further, the first crank 211 has a bent portion 211c as shown in FIG. The curved portion 211c is a portion connecting the first rotating shaft 211a and the second rotating shaft 211b, but an imaginary line (two points) connecting the center of the first rotating shaft 211a and the center of the second rotating shaft 211b at the shortest distance. After being separated obliquely downward from the chain line KL), it is curved and extends in a direction approaching the virtual line.

  When the first crank 211 lifts the first panel 111 until the first rotating shaft 211a comes to the front of the second panel 112, the first crank 211 approaches the lower end of the second panel, but the bent portion 211c is the second. Since it is curved so as to avoid the lower end of the panel 112, interference between the first crank 211 and the lower end of the second panel 112 is avoided.

(3-1-2) Second crank 212
The second crank 212 is a resin member, and both ends thereof are formed into a cylindrical shape or a cylindrical shape so as to function as a rotation shaft. The first rotary shaft 212a located on the first panel 111 side is rotatably held by the lower end bearing 213b of the movable link 213. In the present embodiment, as shown in FIG. 11A, the first rotation shaft 212a is a columnar protrusion.

  The second rotary shaft 212b located on the indoor unit body 10 side is rotatably held at the lower end of the fixed link 214. In the present embodiment, as shown in FIG. 7, the second rotating shaft 212b is a columnar protrusion.

(3-1-3) Movable link 213
The movable link 213 is an elongated resin member, and is fixed to the back surface of the first panel 111 in a vertical posture. The upper and lower ends of the movable link 213 are bearings, the upper end is an upper end bearing 213a that receives the first rotating shaft 211a of the first crank 211, and the lower end is a lower end bearing 213b that receives the first rotating shaft 212a of the second crank 212. Is.

  In the present embodiment, as shown in FIG. 11A, the upper end bearing 213a has a bearing hole into which the cylindrical protrusion of the first rotating shaft 211a of the first crank 211 is inserted. Further, the lower end bearing 213b has a bearing hole into which the cylindrical protrusion of the first rotary shaft 212a of the second crank 212 is inserted.

(3-1-4) Fixed link 214
Although the fixed link 214 exists on the indoor unit body 10 side, it is sufficient that at least the bearing of the second rotating shaft 211b of the first crank 211 and the bearing of the second rotating shaft 212b of the second crank 212 exist. Need not have the shape of

  In the present embodiment, the second rotary shaft 211b of the first crank 211 is supported by the output shaft of the motor, and the second rotary shaft 212b of the second crank 212 is located at a position below the output shaft of the motor by a predetermined distance. It is supported by the formed bearing 214b.

(3-2) Operation of the first panel 111 at the start of operation When the motor rotates the second rotary shaft 211b of the first crank 211 clockwise when the first panel 111 is in the state shown in FIG. The one crank 211 rotates clockwise. At this time, the first rotary shaft 211a of the first crank 211 lifts the movable link 213 while drawing an arc centered on the second rotary shaft 211b.

  The first crank 211 stops rotating at a position where an imaginary line connecting the first rotating shaft 211a and the second rotating shaft 211b is inclined upward by about 5 ° with respect to the horizontal. This stop position is the maximum rotation position Rm of the first crank 211 (see FIGS. 5 and 6).

  The first rotary shaft 211a of the first crank 211 and the upper end bearing 213a of the movable link 213 are rotatably connected. Further, the lower end bearing 213b of the movable link 213 and the first rotating shaft 212a of the second crank 212 are rotatably connected. Further, the bearing 214b of the fixed link 214 and the second rotating shaft 212b of the second crank 212 are rotatably connected.

  Therefore, when the movable link 213 is lifted, the movable link 213 moves upward while being separated from the indoor unit body 10 while maintaining the vertical posture.

  At this time, the “imaginary line connecting the first rotating shaft 211a and the second rotating shaft 211b” of the first crank 211 and the “imaginary line connecting the first rotating shaft 212a and the second rotating shaft 212b of the second crank 212. Is substantially parallel to each other, and the “imaginary line connecting the upper end bearing 213a and the lower end bearing 213b” of the movable link 213 and the “imaginary line connecting the output shaft of the motor and the bearing 214b” of the fixed link 214 are substantially parallel to each other. And the four imaginary lines form a substantially parallelogram.

  That is, when the first crank 211 rotates as a driving node, the first panel 111 fixed to the movable link 213 can move up or down while keeping parallel to the fixed link 214.

  As shown in FIGS. 5 and 6, when the first crank 211 reaches the maximum rotation position Rm, the first panel 111 is located in front of the second panel 112, and the first panel 111 and the second panel 112 are located. The height position of the upper end of the is aligned in front view.

  Since the first panel 111 is set to be vertically longer than the second panel 112 in the front view, when the first panel 111 rises to a height position where the upper end of itself and the upper end of the second panel 112 are aligned in the front view. The second panel 112 is covered by the first panel 111 to form one panel.

  Further, since the vertical length of the second panel 112 is set to be the same as the height dimension of the front surface of the air outlet 5, as shown in FIG. 2B, the first panel 111 has its upper end and By ascending to a height position where the upper end of the panel 112 is aligned (open position OP), the front surface of the air outlet 5 is completely opened.

  The operation of transporting the first panel 111 from the open position OP to the closed position CP may be performed, for example, by rotating the first crank 211 of the panel transport mechanism 21 in FIG. 5 counterclockwise.

(4) Mechanism for maintaining the posture of the first panel 111 The panel transport mechanism 21 operates when the maintenance such as cleaning of the filter 9 is performed except during the operation. When performing maintenance such as cleaning of the filter 9, the user rotates the first panel 111 in a direction in which the lower end of the first panel 111 moves away from the indoor unit body 10 to open the front surface of the indoor unit body 10. There is a need.

  In this case, when the first panel 111 is rotated at the closed position CP, the upper end of the side surface 111a of the first panel 111 and the lower end of the side surface 112a of the second panel 112 interfere with each other as shown in FIG. This causes noise and scratches on the first panel 111 and the second panel 112.

  In the present embodiment, in order to avoid such an inconvenience, when the user opens the front surface of the indoor unit body 10 for maintenance of the filter 9 or the like, the first panel 111 is conveyed to the open position OP. In this open position OP, as shown in FIG. 2B, since the upper end of the side surface 111a of the first panel 111 and the lower end of the side surface 112a of the second panel 112 are dissociated, even if the first panel 111 is rotated. The upper end of the side surface 111a of the first panel 111 and the lower end of the side surface 112a of the second panel 112 do not interfere with each other, so that a squeaking sound and scratches on the first panel 111 and the second panel 112 are prevented.

  Although the user can manually transfer the first panel 111 from the closed position CP to the open position OP, the panel transfer mechanism 21 is connected to the motor, which is a burden to the user. It is preferable to operate at 21.

  When the panel transport mechanism 21 turns on either the operation button 81 or the maintenance preparation button 83 provided in advance on the remote control device (see FIG. 3, hereinafter referred to as the remote controller 80) of the air conditioning indoor unit 1, Operate.

  Therefore, at the time of maintenance, the user first turns on the maintenance preparation button 83 and moves the first panel 111 to the open position OP by the panel transport mechanism 21.

  After that, the user rotates the lower end of the first panel 111 in a direction away from the indoor unit main body 10 in order to open the front surface of the indoor unit main body 10, but the movable link 213 of the panel transfer mechanism 21 moves to the first position. Since the first panel 111 is connected to the back surface of the panel 111, it is necessary to switch the connection state between the two to a rotation permission state in which the first panel 111 can rotate independently.

  Therefore, a hinge mechanism 22, a lock mechanism 23, and a panel support mechanism 24 are provided between the back surface of the first panel 111 and the movable link 213 of the panel transport mechanism 21.

(4-1) Hinge mechanism 22
The hinge mechanism 22 is a mechanism for rotating the first panel 111 about the upper end bearing 213a of the movable link 213 when opening the front surface of the indoor unit body 10 (see FIG. 8).

  Specifically, the hinge mechanism 22 that holds the upper end bearing 213a of the movable link 213 is provided on the back surface side of the first panel 111. The hinge mechanism 22 may be a shaft that fits into the upper end bearing 213a of the movable link 213 with a snap fit.

  At this time, when the lower end of the first panel 111 is moved away from the indoor unit body 10, the first panel 111 rotates around the upper end bearing 213a of the movable link 213.

(4-2) Lock mechanism 23
FIG. 8 is a perspective view of the lock mechanism 23 arranged on the back surface of the first panel 111. FIG. 9A is an enlarged perspective view of the lock mechanism 23 for the first panel 111 and the movable link 213. Further, FIG. 9B is an enlarged perspective view showing a released state of the lock mechanism 23 of FIG. 9A.

  In FIGS. 8, 9A and 9B, a lock mechanism 23 that restrains the lower end bearing 213b of the movable link 213 is provided in a portion of the first panel 111 that faces the lower end bearing 213b of the movable link 213. The lock mechanism 23 has a claw portion 231, a spring portion 232, and a grip portion 233. In this embodiment, the claw portion 231, the spring portion 232, and the grip portion 233 are integrally molded of the same resin.

(4-2-1) Claw 231
The claw portion 231 slides along the back surface of the first panel 111. Normally, the claw tip 231a of the claw portion 231 is inserted into a hole 213h provided in the lower portion of the lower end bearing 213b of the movable link 213, and prevents the lower end bearing 213b from separating from the back surface of the first panel 111.

(4-2-2) Spring portion 232
The spring portion 232 urges the pawl portion 231 upward so that the pawl tip 231a of the pawl portion 231 does not separate from the hole 213h provided in the lower portion of the lower end bearing 213b of the movable link 213. The spring portion 232 is made of resin and formed into an arc beam shape. One end of the spring portion 232 is held on the back surface of the first panel 111, which is referred to as a free end 232a. The other end of the spring portion 232 is fixed to the claw portion 231 and is referred to as a fixed end 232b. In the present embodiment, the claw portion 231 and the spring portion 232 have a lock function of the lock mechanism 23.

(4-2-3) Handle part 233
The grip portion 233 is a portion on which the user puts his / her finger, and is connected to the lower portion of the claw portion 231. When the first panel 111 is in the open position OP, there is a gap between the back surface of the first panel 111 and the indoor unit body 10 so that the user's hand can enter, so that the user puts a finger on the handle portion 233. By pulling it downwards, the claw portion 231 descends and the claw tip 231a separates from the hole 213h provided in the lower portion of the lower end bearing 213b of the movable link 213, so that the first panel 111 and the lower end bearing 213b of the movable link 213 Can be separated. In the present embodiment, the handle portion 233 has a function of unlocking the lock mechanism 23.

(4-3) Panel support mechanism 24
FIG. 10 is a partial perspective view of the air conditioning indoor unit 1 when the first panel 111 is in the maintenance position. In FIG. 10, even if the first panel 111 moves to a position where the front surface of the indoor unit body 10 is opened (hereinafter, referred to as “maintenance position MP”), the first panel 111 is used in order for the user to work with both hands. It is necessary to hold 111 at the maintenance position MP.

  The panel support mechanism 24 is a mechanism for holding the first panel 111 at the maintenance position MP. As shown in FIG. 10, the panel support mechanism 24 has a rotation shaft 24a provided on the movable link 213 of the panel transport mechanism 21, and a support member 25 rotatably held by the rotation shaft 24a. ing.

(4-3-1) Rotating shaft 24a
FIG. 11A is a perspective view of the panel support mechanism 24 before the operation of the support member 25. Further, FIG. 11B is a perspective view of the panel support mechanism 24 after the operation of the support member 25. Further, FIG. 12 is a front view of the panel support mechanism 24 before the operation of the support member 25.

  11A, 11B, and 12, the rotating shaft 24a is a pin-shaped shaft that projects outward from both side surfaces of the movable link 213. The rotating shaft 24a is provided within a section 213c connecting the upper end bearing 213a and the lower end bearing 213b of the movable link 213, and between the center of the section 213c and the lower end bearing 213b.

(4-3-2) Support member 25
The support member 25 is an elongated member, and has a U-shaped concave cross-sectional shape perpendicular to the longitudinal direction. A shaft hole 25a into which the rotary shaft 24a is inserted is provided at one end of the support member 25.

  For convenience of explanation, the end portion of the support member 25 where the shaft hole 25a is provided is referred to as a first end portion 251, and the opposite end portion is referred to as a second end portion 252. The support member 25 becomes rotatable with respect to the movable link 213 by inserting the rotation shaft 24a into the shaft hole 25a of the first end portion 251.

  When the support member 25 is pushed and rotated in a direction of approaching the movable link 213, a part of the section 213c of the movable link 213 is fitted into the recessed space of the support member 25, overlaps with each other, and cannot be pushed any further.

  Conversely, when the pushing of the support member 25 in the direction of approaching the movable link 213 is stopped, the support member 25 rotates in the direction away from the movable link 213. This is because, as shown in FIG. 11A, the center of gravity 25g of the support member 25 is located above the pivot shaft 24a and in front (in the direction away from the movable link 213), so that the support member 25 is movable unless constrained. It naturally rotates in the direction away from the link 213.

  The end surface of the first end portion 251 includes an arc surface 251a having a central angle of 100 ° with respect to the center of the shaft hole 25a, and an inclined surface 251b projecting in the longitudinal direction of the support member 25 more than the arc surface 251a.

  When the support member 25 rotates in a direction away from the movable link 213 from a state where a part of the section 213c of the movable link 213 is fitted in the recessed space of the support member 25, the circular arc surface 251a and the inclined surface 251b are also formed. Rotate at the same time. Further, in the movable link 213, the advancement prevention surface 213d facing the inclined surface 251b is provided at a position advanced by 60 ° in the rotation direction of the inclined surface 251b.

  Therefore, when the support member 25 rotates by 60 ° in the direction away from the movable link 213, the inclined surface 251b abuts on the advancement prevention surface 213d, and the rotation of the support member 25 stops.

  At the open position OP of the first panel 111, while the connection between the lower end bearing 213b side of the movable link 213 and the first panel 111 is maintained, the support member 25 is a section between the back surface of the first panel 111 and the movable link 213. Because it is sandwiched between 213c. The support member 25 is stationary.

(4-3-3) Operation of Support Member 25 The grip portion 233 of the lock mechanism 23 is pulled downward (see FIG. 9B), the lower end bearing 213b side of the movable link 213 is disconnected from the first panel 111, When the lower end of the first panel 111 is pulled away from the indoor unit body 10 by the user's hand, the hinge mechanism 22 causes the first panel 111 to rotate around the upper end bearing 213a of the movable link 213.

  At the same time that the first panel 111 starts rotating in the direction away from the indoor unit body 10, the support member 25 starts rotating about the rotation shaft 24a so as to follow the first panel 111, and the first panel 111 moves. When the maintenance position MP is reached, the support member 25 rotates 60 ° in the direction away from the movable link 213, the inclined surface 251b abuts on the advancement prevention surface 213d, and the rotation of the support member 25 stops.

  At this time, even if the user releases the first panel 111, the second end 252 of the support member 25 supports the back surface of the first panel 111, so that the first panel 111 stops at the maintenance position MP and the indoor unit body is stopped. Open the front of 10.

  On the other hand, when the first panel 111 is returned from the tilted posture at the time of maintenance to the vertical posture, the second end portion 252 of the support member 25 is pushed by temporarily raising the support member 25 and then pushing the first panel 111 by hand. Slides on the back surface of the first panel 111 and approaches the movable link 213 of the panel transport mechanism 21, so that a part of the section 213c of the movable link 213 finally fits into the recessed space of the support member 25. , Overlapping, I can not press any more. At this point, the first panel 111 returns to the vertical posture.

  As shown in FIGS. 11A, 11B, and 12, the second end portion 252 does not exist at the main body end portion 25b of the support member 25, but at the left side of the main body end portion 25b of the support member 25 in the front view of FIG. After protruding from the surface to the back side, it folds to the left and extends parallel to the paper surface (vertical direction). That is, the second end 252 is closer to the indoor unit body 10 than the body end 25b.

  As described above, as a result of the second end 252 being provided at a position deviated from the main body end 25b of the support member 25, even if a buckling load is applied from the tip of the second end 252, the second end Since 252 bends and its force acts in a direction to bring the main body end portion 25b closer to the indoor unit main body 10, a moment inevitably occurs in the support member 25 in the direction of the indoor unit main body 10.

  Therefore, even if the user accidentally presses the first panel 111 without raising the support member 25, the second end 252 of the support member 25 bends when a certain amount of force is applied, and then the second end 252 is Since it slides on the back surface of the first panel 111, it is not damaged.

  As described above, the support member 25 of the panel support mechanism 24 is housed so as to overlap with the movable link 213 of the panel transport mechanism 21 when the first panel 111 is in the vertical posture at the closed position CP and the open position OP, and the first panel. When 111 is in the inclined position at the maintenance position MP, the support member 25 lowers by its own weight to support the first panel 111.

(4-3-4) Other Application Examples The panel support mechanism 24 is a type in which the front panel is not driven, and the front panel (including the front grill) is rotated forward to maintain the filter, for example, It is also applicable to floor-standing type air conditioning indoor units.

  Further, in the present embodiment, when the first panel 111 is in the inclined position at the maintenance position MP, the supporting member 25 is lowered from the movable link 213 side by its own weight to support the first panel 111, but is not limited to this. However, the support member 25 is rotatably held on the back surface side of the first panel 111, and when the first panel 111 is tilted, the support member 25 is lowered from the first panel 111 side by its own weight. The movable link 213 may be stopped and stopped.

(5) Detailed Description of First Wind Direction Adjusting Blade 30 FIG. 13A is a perspective view of the first air direction adjusting blade 30 when operation is stopped. FIG. 13B is a perspective view of the first wind direction adjusting blade 30 during operation. Further, FIG. 14A is a sectional view taken along line XX of FIG. 13A.

  13A, 13B, and 14A, the first wind direction adjusting blade 30 includes a heat insulating portion 31 made of expanded polystyrene, a first blade member 321 forming a decorative surface 30a, and a second blade member forming a Coanda surface 30b. It is configured so as to be sandwiched with 322. The first blade member 321 and the second blade member 322 are collectively referred to as the “blade member 32”.

  The first airflow direction adjusting blade 30 is a member that adjusts the airflow direction of the air blown out from the air outlet 5 through the airflow passage 18. As shown in FIG. 4, when the air conditioning indoor unit 1 is in the stopped state, the first airflow direction adjusting blade 30 covers the lower surface of the air outlet 5 with the decorative surface 30a facing downward.

  Then, as shown in FIG. 6, when the air conditioning indoor unit 1 starts to operate, the first airflow direction adjusting blade 30 rotates 180 ° around the rotation shaft 30c. At this time, the first wind direction adjusting blade 30 reaches the upper portion of the outlet 5 (see FIG. 14A), and therefore, in order to avoid interference with the first panel 111, it is inevitably performed after the operation of the first panel 111 or after the operation of the first panel 111. The rotation operation of the first wind direction adjusting blade 30 is performed after the operation of the first panel 111.

  For convenience of description, the position where the first wind direction adjusting blade 30 reaches by rotating 180 ° about the rotation axis is referred to as the maximum open position MOP (see FIG. 6).

  At the maximum open position MOP, the first wind direction adjusting blade 30 stands still with the decorative surface 30a facing upward and the Coanda surface 30b facing downward. During the cooling operation, the front suction port 4B of the indoor unit body 10 is present above the decorative surface 30a, and the indoor air is sucked in. On the other hand, the air outlet 5 exists below the Coanda surface 30b, and cool air is blown out.

(5-1) Condensation Countermeasures for First Wind Direction Adjusting Blade 30 Since there is a slight gap between the upper wall of the outlet 5 and the decorative surface 30a, room air can easily enter. In addition, during the cooling operation, the second blade member 322 forming the Coanda surface 30b is cooled by the cool air, so that the first blade member 321 forming the decorative surface 30a is also cooled by heat transfer. Condensation occurs.

  Since the heat transfer along the thickness direction of the first wind direction adjusting blade 30 is insulated by the expanded polystyrene of the heat insulating portion 31, the first blade member 321 is cooled only by the first blade member 321 and the first blade member 321. The heat conduction inside the two-blade member 322 is a factor.

  Further, the cold air flows along the Coanda surface 30b of the first airflow direction adjusting blade 30 at the maximum open position MOP, but the cold air is separated when the curvature of the arc of the tip portion changes, so the indoor air is drawn in by the vortex after the separation. As a result, dew condensation occurs due to contact with the first wind direction adjusting blade 30.

(5-1-1) Recess 33
In order to prevent the occurrence of dew condensation as described above, the first airflow direction adjusting blade 30 is provided with a recess 33 formed by reducing the plate thickness of the second blade member 322. The recesses 33 are provided at both ends of the first wind direction adjusting blade 30, and one of them is called a first recess 331 and the other is called a second recess 332.

  As shown in FIG. 14A, when the first airflow direction adjusting blade 30 is at the maximum open position MOP, the position of the first recess 331 is in the downstream direction from the upstream end 30up with respect to the flow of blown air of the first airflow direction adjusting blade 30. It is set to be within a range of 20% of the lateral width dimension of the first wind direction adjusting blade 30.

  Further, the position of the second recess 332 is such that, when the first airflow direction adjusting blade 30 is at the maximum open position MOP, the first airflow direction adjusting blade moves upstream from the downstream end 30 dp with respect to the flow of the air blown out of the first airflow direction adjusting blade 30. It is provided within the range of 20% of the width dimension of 30.

  FIG. 14B is an enlarged cross-sectional view of the first recess 331. Further, FIG. 14C is an enlarged cross-sectional view of the second recess 332. 14B and 14C, the first recess 331 and the second recess 332 are formed by reducing the plate thickness of the second blade member 322 by 35 to 60%. That is, the minimum thickness t of the first recess 331 and the second recess 332 is set within the range of 40 to 65% of the plate thickness of the second blade member 322 excluding the first recess 331 and the second recess 332.

  It is considered that the thinner the minimum thickness of the first concave portion 331 and the second concave portion 332, the better. However, in the present embodiment, since the second blade member 322 is manufactured by resin injection molding, the molten resin is formed in the mold. Is set within a range of 40 to 65% of the plate thickness of the second blade member 322. Further, since the bottom surfaces of the first recess 331 and the second recess 332 are supported on the back surfaces by the expanded polystyrene of the heat insulating portion 31, there is no reduction in strength.

  Further, the width of the depressions of the first concave portion 331 and the second concave portion 332 is a dimension corresponding to 40 to 65% of the plate thickness of the second blade member 322 at the bottom width w1 of the concave portion, and the second blade member at the inlet w2 of the concave portion. It is set to a size corresponding to 100 to 200% of the plate thickness of 322, and is preferably set to a range of 0.6 to 2.4 mm.

  The flow of the heat transmitted through the second blade member 322 is hindered by the minimum thickness portions of the first concave portion 331 and the second concave portion 332, so that the section from the first concave portion 331 and the second concave portion 332 to the first blade member 321 respectively. The temperature drop is suppressed. As a result, the temperature drop in the portion that comes into contact with warm room air is also suppressed, and the occurrence of condensation is suppressed.

  The numbers of the first recesses 331 and the second recesses 332 are not particularly limited, but it is preferable to provide the two first recesses 331 and the one second recess 332 because the upstream side in the flow direction of the blown air is easily cooled.

  By the way, some air conditioning indoor units have a plurality of grooves provided in a portion where the indoor air hits instead of the blown air, but the purpose of these grooves is to hold the condensed water and evaporate with the wind. It is completely different from the one concave portion 331 and the second concave portion 332, which suppresses heat transfer to the cold air side where cold air and warm air are separated and the start point side and the end point side where cold air hits.

(5-1-2) Wall part 34
Up to this point, the indoor air that enters the gap between the upper wall of the outlet 5 and the decorative surface 30a and the indoor air that is drawn in by the vortex after separation of the cool air that flows along the Coanda surface 30b of the first airflow direction adjusting blade 30 are , It was explained on the assumption that it will be cooled to cause condensation.

  However, condensation may occur due to events other than the above. Specifically, the vertical wind direction adjusting blade 50 causes the cool air flowing along the Coanda surface 30b of the first air direction adjusting blade 30 at the maximum open position MOP (see FIG. 6) to be a side wall of the walls forming the outlet 5. In some cases, it may wrap around to the decorative surface 30a side.

  The gap between the decorative surface 30a of the first wind direction adjusting blade 30 at the maximum open position MOP and the upper wall of the walls forming the outlet 5 has a negative pressure, and the negative pressure causes cold air to flow toward the decorative surface 30a. It is thought that it will rise, and dew condensation occurs in such a case.

  In the present embodiment, as shown in FIGS. 3A and 3B, the wall portion 34 that rises in the thickness direction is provided at the side end portion in the longitudinal direction of the second blade member 322. When the vertical airflow direction adjusting blade 50 blows left and right, the cold air flowing diagonally across the Coanda surface 30b of the first airflow direction adjusting blade 30 hits the wall portion 34 and is directed to the lower side of the side wall of the air outlet 5, so that the first airflow direction is reduced. The flow that goes around the decorative surface 30a of the adjusting blade 30 does not occur. This suppresses the occurrence of dew condensation.

(6) Detailed Description of Second Wind Direction Adjusting Blade 40 As shown in FIG. 4, when the air conditioning indoor unit 1 is not operating, the second air direction adjusting blade 40 is closer to the closed position CP than the first panel 111. Is also located rearward and above the first wind direction adjusting blade 30 at the initial position SP, and is invisible to the public.

  On the other hand, as shown in FIG. 6, when the air conditioning indoor unit 1 is in operation, the first panel 111 moves to the open position OP to open the front surface of the outlet port 5, and the first wind direction adjusting blade 30 moves. Since it rotates and moves above the second airflow direction adjusting blade 40 to open the lower surface of the air outlet 5, the second airflow direction adjusting blade 40 is exposed from the air outlet 5.

  FIG. 15 is a vertical cross-sectional view of the air conditioning indoor unit 1 for showing the inclination angle of the second wind direction adjusting blade 40. In FIG. 15, the second wind direction adjusting blade 40 has the convex side surface 40a facing downward and the concave side surface 40b upward, so that the cool wind flowing along the concave side surface 40b, which is the upper surface, is lifted to move the first wind direction. Go to the adjusting blade 30. The flow along the concave side surface 40b is called main flow.

  On the other hand, the cold air flowing along the convex side surface 40a that is the lower surface flows along the convex side surface 40a when the angle of the second wind direction adjusting blade 40 (hereinafter, referred to as "tilt angle θ") is within a predetermined angle range. Maintains and flows in the same direction as the mainstream.

  Here, the inclination angle θ of the second wind direction adjusting blade 40 is the angle of the imaginary line BL passing through the front end and the rearmost end of the second wind direction adjusting blade 40 with respect to the tangent line TL at the end of the scroll 17.

  When the inclination angle θ of the second wind direction adjusting blade 40 is out of the predetermined angle range, the cold air is along the curved surface partway, but is separated before the direction toward the first air direction adjusting blade 30, so that the mainstream becomes mainstream. Go away.

  In such a case, the cold air flowing along the convex side surface 40a is separated immediately after it exceeds the apex of the convex side surface 40a or at the center of the section connecting the apex of the convex side surface 40a and the downstream end. Therefore, indoor air having a temperature higher than that of the cold air enters the place where the cold air does not follow, and dew condensation occurs.

  The section connecting the deepest point of the concave side surface 40b to the downstream side point is called the concave second half section 40bb, and the section connecting the apex of the convex side surface 40a and the downstream end is called the convex second half section 40ab.

  In the present embodiment, when the vertical airflow direction adjusting blade 50 is swaying to the left or right, it is confirmed by experiments by the applicant that dew condensation is likely to occur in the convex second half section 40ab at both ends of the second airflow direction adjusting blade 40. Has been done.

(6-1) Measures against dew condensation on the second airflow direction adjusting blade 40 As described above, unless the inclination angle θ of the second airflow direction adjusting blade 40 exceeds the predetermined angle, the cold air does not separate in the convex second half section 40ab, Since the entire second wind direction adjusting blade 40 is in a state of being surrounded by cold air, the occurrence of dew condensation on the second air direction adjusting blade 40 is suppressed.

(6-1-1) Relationship between Posture of Second Wind Direction Adjusting Blade 40 and Blow-Out Air Temperature According to the applicant's research, when the temperature Tb of the blown air is in the range of 12 ° C to 13 ° C, the second wind direction. If the inclination angle θ of the adjusting blade 40 is in the range of 0 to 5 °, the occurrence of dew condensation is suppressed.

  On the other hand, when it is unavoidable that the cold air is separated in the convex-side second half section 40ab due to the user's convenience, that is, when the inclination angle θ of the second wind direction adjusting blade 40 is outside the range of 0 to 5 °. Has a problem in that the degree of freedom of parameters is narrow because it is necessary to increase the dew point temperature by raising the temperature Tb of blown air to 14 ° C to 16 ° C.

  The applicant has a problem of expanding the range of the inclination angle θ of the second airflow direction adjusting blade 40 while suppressing the generation of dew condensation, and in order to solve this problem, it flows along the convex side surface 40a. It is necessary to allow the cool air to flow without peeling even in the second half section 40ab on the convex side.

(6-1-2) Through hole 43
Therefore, in the present embodiment, in order to allow the cool air to flow without separating even in the convex-side rear half section 40ab of the convex side surface 40a, the second air-direction adjusting blade 40 is provided on the end side in the longitudinal direction of the second air-direction adjusting blade 40. A through hole 43 passing through in the thickness direction is provided. The through hole 43 will be described below with reference to the drawings.

  FIG. 16A is a perspective view of the second wind direction adjusting blade 40. 16B is a cross-sectional view taken along line YY of FIG. 16A. 16A and 16B, the through-hole 43 is provided for the purpose of flowing the cool air flowing along the concave-side latter half section 40bb of the concave side surface 40b to the convex-side latter half section 40ab of the convex side surface 40a (dotted line in FIG. 16B). See the arrow).

  The opening 43b formed in the concave second half section 40bb of the through hole 43 is located on the upstream side of the opening 43a formed in the convex second half section 40ab. That is, the through hole 43 is an obliquely downward hole that advances downward as it goes forward.

  Because of the presence of the through hole 43, a part of the cool air flowing along the concave side surface 40b passes through the through hole 43, flows out to the convex-side second half section 40ab, and flows toward the downstream end. Since the cold air flowing along the section 40ab is attracted, peeling is suppressed.

  The through hole 43 is an elongated hole parallel to the longitudinal direction of the second airflow direction adjusting blade 40. The through hole 43 is a virtual plane including the vertical plane 50a of the blade piece 501 at the end in the opposite direction to the shake direction and the second wind direction adjustment when the vertical wind direction adjustment blade 50 is at the maximum shake position during actual use. It suffices that at least a part of the through hole 43 hangs in a section from the area where the blade 40 intersects to the end of the second airflow direction adjusting blade 40 that is closest to the area.

  In the present embodiment, as shown in FIG. 16A, the through holes 43 are formed so as to extend over the range of 20% of the entire length in the longitudinal direction from both ends. For example, when the vertical airflow direction adjusting blade 50 is at the maximum leftward deflection position, a section on the right side of the intersection area between the second airflow direction adjusting blade 40 and the virtual plane including the vertical plane 50a of the blade piece 501 on the rightmost side (for example, the right end). (A range of from 80 mm to 80 mm) has no momentum in the flow of air, is easily separated from the convex side surface 40a of the second airflow direction adjusting blade 40, is easily contacted with room air, and is likely to cause dew condensation.

  Therefore, by providing the through holes 43 so that the through holes 43 cover the range of 20% of the entire length in the longitudinal direction from both ends, the cool air passing through the through holes 43 is along the convex-side half section 40ab of the convex side surface 40a. Since the air flows, the cold air flowing from the upstream side toward the convex-side second half section 40ab is attracted and is prevented from being separated from the convex-side latter half section 40ab. As a result, the indoor air does not come into contact with the second wind direction adjusting blade 40, and the occurrence of dew condensation is suppressed.

  As a result of the through hole 43 being provided as described above and the occurrence of dew condensation being suppressed, when the temperature Tb of the blown air is in the range of 12 ° C to 13 ° C, the inclination angle θ of the second wind direction adjusting blade 40 is 0 to 0. It has been confirmed by the applicant's study that the occurrence of dew condensation is suppressed within the range of 32 °.

  In addition, the through hole 43 does not necessarily have to be an elongated hole. It may be.

(7) Modification In the above embodiment, the second panel 112 of the front panel 11 is fixed, and only the first panel 111 moves to the front of the second panel 112 to open the front of the indoor unit body 10. However, the present invention is not limited to this, and both the first panel 111 and the second panel 112 may move to open the front surface of the indoor unit body 10.

  FIG. 17 is a vertical cross-sectional view of the air conditioning indoor unit 1B according to the modified example, and is the air conditioning indoor unit 1B when the operation is stopped. In addition, FIG. 18 is a vertical cross-sectional view of the air conditioning indoor unit 1B during operation of the panel transport mechanism before the start of operation. Further, FIG. 19 is a vertical cross-sectional view of the air conditioning indoor unit 1B during operation. 17, 18 and 19, the difference between the above-described embodiment and the air conditioning indoor unit 1B according to the modification is that a panel transfer mechanism 21B that transfers both the first panel 111 and the second panel 112 is provided. Is.

  The panel transfer mechanism 21B is the panel transfer mechanism 21 that transfers the first panel 111, to which a transfer mechanism for the second panel 112 is added. As shown in FIG. 18, the panel transport mechanism 21B first moves the first panel 111 forward and upward, and when the first panel 111 is separated from the indoor unit main body 10 by a predetermined distance, the second panel 112 is moved to the inside of the room. Horizontally move in a direction away from the machine body 10.

  Finally, as shown in FIG. 19, the first panel 111 moves from the indoor unit body 10 by a distance D1 in the horizontal direction and H1 in the vertical direction and stops. The second panel 112 moves a distance D2 shorter than the distance D1 in the horizontal direction from the indoor unit body 10 and stops.

  In the air conditioning indoor unit 1B, the second panel 112 opens the upper front surface of the indoor unit main body 10 during operation, so that air passes between the upper front surface of the indoor unit main body 10 and the second panel 112 and the indoor unit main body 10 Since it reaches the front surface of the indoor unit 10, the air suction path from the front surface of the indoor unit body 10 becomes short, and the air resistance can be reduced.

(8) Features (8-1)
In the air conditioning indoor unit 1, the first panel 111 is held at the closed position CP (see FIG. 2A) that covers the front surface of the indoor unit body 10 and the maintenance position MP (see FIG. 10) that opens the front surface of the indoor unit body 10 during maintenance. ). Further, when the first panel 111 moves from the closed position CP to the maintenance position MP, the first panel 111 moves to the open position OP (see FIG. 2B) that is separated from the indoor unit body 10 in front of the closed position CP. The “operation from the closed position CP of the first panel 111 to the open position OP” and the “operation from the open position OP of the first panel 111 to the maintenance position MP” are different operations. Since the first panel 111 moves to the maintenance position MP after being separated from the indoor unit body 10, it is possible to prevent interference between the upper end of the first panel 111 and the indoor unit body 10.

(8-2)
In the air conditioning indoor unit 1, when the user manually moves the first panel 111 from the open position OP to the maintenance position MP, since the lower end of the first panel 111 is separated from the indoor unit main body 10, Is easy to enter and is easy to use.

(8-3)
In the air conditioning indoor unit 1, when the user performs maintenance on the filter 9 and the like from the front of the indoor unit main body 10, the indoor unit main body 10 is viewed obliquely from below, but the lower end of the first panel 111 is lower than the upper end. Since it is separated from the indoor unit body 10, maintenance work is easy.

(8-4)
In the air conditioning indoor unit 1, the first panel 111 always stops at the open position OP. The operation of the first panel 111 from the closed position CP to the maintenance position MP has different mechanisms for "operation from the closed position CP to the open position OP" and "operation from the open position OP to the maintenance position MP". In this case, by temporarily stopping at the open position OP, switching between the former mechanism and the latter mechanism becomes easy.

(8-5)
In the air conditioning indoor unit 1, since the panel transfer mechanism 21 guides the first panel 111 to the open position OP, the first panel 111 must always go through the second position, and the user must move the first panel 111 to the wrong position. Can be avoided.

(8-6)
In the air conditioning indoor unit 1, since the first panel 111 is automatically transported to the open position OP by the panel transport mechanism 21, the burden on the user can be reduced and the usability is good.

(8-7)
In the air conditioning indoor unit 1, the presence of the maintenance preparation button 83 for starting the operation of the panel transport mechanism 21 allows the user to recognize that the operation from the closed position CP to the open position OP of the first panel 111 is automatic. , Can be encouraged to use.

(8-8)
In the air conditioning indoor unit 1, the first panel 111 is prevented from moving relative to the movable link 213 of the panel transfer mechanism 21 by connecting the claw portion 231 of the lock mechanism 23 and the hole 213h of the movable link 213 of the panel transfer mechanism 21. Being bound by (hereinafter referred to as the connected state). Further, the first panel 111 is moved relative to the movable link 213 of the panel transport mechanism 21 at the open position OP by releasing the connection between the grip portion 233 of the lock mechanism 23 and the hole 213h of the movable link 213 of the panel transport mechanism 21. That is allowed (hereinafter referred to as the unconnected state). Therefore, as long as the grip portion 233 is not operated, even if both ends of the first panel 111 are pulled forward, the first panel 111 is transported to the open position OP without being separated from the panel transport mechanism 21.

(8-9)
In the air conditioning indoor unit 1, when the grip portion 233 of the lock mechanism 23 and the hole 213h of the movable link 213 of the panel transport mechanism 21 are in the unconnected state at the open position OP, the first panel 111 causes the panel transport mechanism 21 to move. Of the movable link 213 is allowed to rotate around the upper end bearing 213a.

(8-10)
In the air conditioning indoor unit 1, the second panel 112 is located above the first panel 111 in the closed position CP and in front of the indoor unit body 10. In the open position OP, the first panel 111 is located in front of the second panel 112. Therefore, even when the first panel 111 moves from the open position OP to the maintenance position MP, the upper end of the side surface 111a of the first panel 111 and the lower end of the side surface 112a of the second panel 112 do not interfere with each other.

  INDUSTRIAL APPLICABILITY The present invention is not limited to a wall-mounted air conditioning indoor unit, but is also useful for a floor-standing air conditioning indoor unit.

1 Air-conditioning indoor unit 1B Air-conditioning indoor unit 10 Indoor unit main body 21 Panel transfer mechanism 111 First panel 112 Second panel 23 Lock mechanism 213a Upper end bearing (upper connecting portion)
213h hole (lower connecting part)

JP, 10-274423, A

Claims (12)

Indoor unit body (10),
A first panel (111) that is held at a first position that covers the front surface of the indoor unit body (10), and has a lower end that is maintained at a maintenance position that is away from the front surface of the indoor unit body (10) during maintenance;
A second panel (112) located above the first panel (111) and in front of the indoor unit body (10);
Equipped with
The second panel (112) is arranged directly above the first panel (111),
The first panel (111) performs at least a second operation different from the first operation in which the upper end of the first panel (111) moves to a position where the upper end of the first panel (111) does not contact the lower part of the second panel (112). From the first position to the maintenance position, which is a position diagonally above the first position ,
In the first operation, the first panel (111) moves away from the first position to a second position in front of the second panel (112),
Air conditioning indoor unit. In the second position, the lower end of the first panel (111) is separated from the indoor unit body (10),
The air conditioning indoor unit according to claim 1. Indoor unit body (10),
A first panel (111) that is held at a first position that covers the front surface of the indoor unit body (10), and has a lower end that is maintained at a maintenance position that is away from the front surface of the indoor unit body (10) during maintenance;
A second panel (112) located above the first panel (111) and in front of the indoor unit body (10);
Equipped with
The second panel (112) is arranged directly above the first panel (111),
The first panel (111) performs at least a second operation different from the first operation in which the upper end of the first panel (111) moves to a position where the upper end of the first panel (111) does not contact the lower part of the second panel (112). Through the first position to the maintenance position,
In the first operation, the first panel (111) moves away from the first position to a second position in front of the second panel (112),
The first operation is an operation in which the first panel (111) moves obliquely upward from the first position while maintaining its posture to reach the second position,
In the second operation, the first panel (111) rotates the lower end of the first panel (111) at least at the second position in a direction away from the front surface of the indoor unit body (10) to perform the maintenance. Movement to reach the position,
Air conditioning indoor unit. In the second operation, the lower end of the first panel (111) is farther from the indoor unit body (10) than the upper end.
The air conditioning indoor unit according to any one of claims 1 to 3. The first panel (111) stops at the second position,
The air conditioning indoor unit according to any one of claims 1 to 4. A panel transfer mechanism (21) for guiding the first panel (111) to at least the second position,
The air conditioning indoor unit according to any one of claims 1 to 5. The panel transfer mechanism (21) automatically transfers the first panel (111) to the second position,
The air conditioning indoor unit according to claim 6. An operation unit (83) for starting the operation of the panel transport mechanism (21) is further provided.
The air conditioning indoor unit according to claim 6 or 7. The panel transfer mechanism (21) is
A lower connecting part (213h) connected to a lower part of the first panel (111),
A lock mechanism (23) for switching the lower portion of the first panel (111) and the lower connecting portion (213h) to either a connected state or a non-connected state at the second position;
Has,
The air conditioning indoor unit according to claim 6. The locking mechanism is disposed on the first panel (111),
The air conditioning indoor unit according to claim 9. The panel transfer mechanism (21) further includes an upper connection part (213a) connected to an upper part of the first panel (111).
The air conditioning indoor unit according to claim 9 or 10. The first panel (111) moves from a position where its upper end does not contact the lower part of the second panel (112) to the maintenance position through the second operation.
The air conditioning indoor unit according to claim 1.

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