TWI789670B - Ceiling embedded type air conditioner and installation method - Google Patents

Abstract

[Problem] Regardless of the installation direction of the suction grill, it can accommodate the suction grill that can be raised and lowered. [Solution] The indoor unit (100) of the ceiling-embedded air conditioner of the present invention is provided with: a fan (105), which is used to circulate the indoor air; a fan motor (106); a heat exchanger (103), which is A heat exchange medium is circulated to exchange heat with the indoor air; and a lift motor (113) is used to drive the suspension cables that enable the suction grille to rise and fall. The indoor unit (100) has: a decorative panel (107), which is arranged on the indoor side of the indoor unit (100), and has: a cable guide fixing part, which is connected to a continuous channel for allowing indoor air to circulate. The inner opening formed by the extended edge section protrudes; the cable guide fixing part (107a) formed adjacent to the outlet of the decorative panel (107) is arranged across the corner of the inner opening.

Description

Ceiling embedded type air conditioner and installation method

The present invention relates to a ceiling-embedded air conditioner, and more specifically, to a ceiling-embedded air conditioner capable of changing the installation direction of a suction grill to an indoor unit of the ceiling-embedded air conditioner and an installation method thereof.

In the case of a ceiling-embedded air conditioner (hereinafter referred to as an air conditioner) in which a decorative panel is installed on the lower part of the unit body, a suction grill formed with a grid is installed on the indoor side of the air conditioner body installed on the ceiling. Improve the appearance of the air conditioner, and secure the maintainability of the inside of the air conditioner. Since the air conditioner of the ceiling-embedded type is installed in the ceiling, an air conditioner is proposed in which the suction grille can be easily cleaned, inspected, or replaced. It is constituted to be able to move up and down freely from the air conditioner (Japanese Patent No. 6430855 specification).

In Patent Document 1, a motor for raising/lowering is installed inside a decorative panel, and the other end of a cable wound around the motor is fixed to a suction grill to support the suction grill freely. It also describes that when the suction grill is raised and lowered, the motor arranged in the main body of the air conditioner is driven to raise and lower the suction grill and the filter screen supported by the suction grill.

In addition, techniques for raising and lowering the suction grill are also described in, for example, Japanese Patent No. 3812027 (Patent Document 2) and Japanese Patent No. 5320189 (Patent Document 3). Patent Document 2 proposes a mechanism for smoothly storing the suction grill when storing it in the decorative panel.

In addition, Patent Document 3 describes a mechanism in which only the frame and the dust collection unit are raised and lowered in order to reduce the weight of the suction grill that is raised and lowered for maintenance. [Prior Art Literature] [Patent Document]

Patent Document 1: Specification of Japanese Patent No. 6430855 Patent Document 2: Specification of Japanese Patent No. 3812027 Patent Document 3: Specification of Japanese Patent No. 5320189

[Problem to be solved by the invention]

However, since the ceiling-embedded air conditioner is installed on the ceiling near the center of the room, design is required in addition to the air-conditioning capability. For the purpose of improving the design of the air conditioner, it is considered to expand the suction grill to the vicinity of the air outlet provided on the outer periphery of the decorative panel. However, if the suction grille is enlarged to the vicinity of the air outlet, the suction grille will increase in size and weight, and the output of the lift motor that moves the suction grille up and down may be insufficient.

Here, in order to reduce the weight of the portion to be raised and lowered, a part of the suction grille can be raised and lowered instead of the entire suction grille, and a part of the suction grille may be raised and lowered. For example, when the suction grille is formed in a square shape, the rectangular part including the filter and the cable mounting part in the suction grille is configured to be movable, and the rectangular part is raised and lowered. , by raising and lowering the movable part, it is possible to avoid insufficient output of the lifting motor.

In the case of adopting the aforementioned configuration, the ceiling-embedded air conditioner is constructed together with the decorative panel depending on the arrangement position of the main body or the structure of the piping. Therefore, in order not to impair the workability of the main body, it is necessary to allow the suction grille to be attached to the main body even when it is rotated by 90° in the grid direction with respect to the decorative panel. At this time, when the movable part of the suction grill is formed in a rectangular shape, if the suction grill is rotated by 90° for construction, the cable installation part of the lifting cable on the suction grill and the cable installation part formed on the decorative panel side will be connected to each other. Since the cable guide is displaced, there is a problem that the movable part of the suction grill cannot be accommodated in the decorative panel.

The present invention aims to solve the above-mentioned problems, and aims to provide a ceiling-embedded air conditioner and an installation method thereof, which can accommodate the suction grill that can be raised and lowered regardless of the installation direction of the suction grill. [Technical means to solve the problem]

That is, according to an exemplary embodiment of the present invention, there is provided a ceiling-embedded air conditioner having: fan; heat exchanger; The decorative panel is equipped with a cable guide fixing part; suction grille, mounted on the aforementioned decorative panel; and A lift motor for driving the suspension cables that enable the lift of the aforementioned suction grille; Indoor unit, the indoor unit has: The said cable guide fixing part is arrange|positioned plurally across the corner part of the inside opening of the said decorative panel.

Furthermore, according to an exemplary embodiment of the present invention, a method for installing a ceiling-embedded air conditioner is provided, which is: A method of installing a ceiling-embedded air conditioner including an indoor unit in a room, the indoor unit comprising: a fan for circulating indoor air; a fan motor; air for heat exchange; and a lifting motor for driving a suspension cable that enables the suction grille to be raised and lowered; the foregoing method includes: A step of fixing a decorative panel to the frame body, the decorative panel is disposed on the indoor side of the indoor unit, and includes: a cable guide fixing portion protruding from an inner opening for allowing the indoor air to circulate, and A plurality of them are disposed across the corner of the inner opening; and The above-mentioned movable part of the suction grille, which is installed on the above-mentioned decorative panel and adjacent to the air outlet of the above-mentioned decorative panel, has a movable part that can be raised and lowered by the suspension cable, so that the above-mentioned suspension cable can be used as The step of rotating the decorative panel so that the position of the vertically lower side of the cable guide fixing portion coincides with the lattice direction of the remaining portion of the suction grill. [Effect of Invention]

According to the present invention, it is possible to provide a ceiling-embedded air conditioner and an installation method capable of accommodating a suction grill that can be raised and lowered regardless of the installation direction of the suction grill.

Hereinafter, although this embodiment is demonstrated using an embodiment, this invention is not limited to an embodiment. In addition, the drawings attached to this specification are only for making the present invention easy to understand, and are not intended to limit the present inventors. In addition, in the present invention, when an angle is described, it has a tolerance in the range of ±20% centering on the stated numerical value. Moreover, the terms "near", "near" or "adjacent" are used in the general meaning of "near", "near" or "adjacent" understood by those skilled in the art to which the invention pertains , and does not necessarily mean actually touching. In addition, the term "corner" in the present disclosure refers to a portion where edges are assembled at angles such as acute angles, obtuse angles, and right angles to form at least a regular polygon on a plane.

Fig. 1 is a schematic sectional view showing an indoor unit 100 of an air conditioner according to the present embodiment. The indoor unit 100 shown in FIG. 1 is housed in a frame 102 of the indoor unit 100 and accommodates a heat exchanger 103 , a fan 105 , and a fan motor 106 for driving the fan 105 . The indoor air flows in the direction of the arrow A, and follows the airflow generated by the fan 105 to the heat exchanger 103 to exchange heat with the refrigerant circulating in the heat exchanger 103 .

The conditioned air after the heat exchange is discharged from the air outlet 108 in the direction of the arrow B into the room. A drain pan 104 is disposed below the heat exchanger 103 to recover condensed water from the heat exchanger 103 .

A decorative panel 107 is provided on the indoor side of the housing 102 , and a suction grill 109 is detachably provided on the indoor side of the decorative panel 107 . The suction grille 109 includes a suction grille movable part 109b held vertically by an elevating motor 113, and a suction grille fixed part 109a arranged at both ends thereof. In addition, a grid 109c is formed as a design of the decorative panel 107 on the suction grill fixed part 109a and the suction grill movable part 109b. In the exemplary embodiment, the outer edge portion of the suction grill fixing portion 109a is formed to extend to the vicinity of the air outlet 108 from the viewpoint of design.

The inner part of the suction grille fixing part 109a is formed into a rectangle, and more specifically, the rectangular suction grille movable part 109b is formed separately from the suction grille fixing part 109a. The inner part of 109a is formed with the housing part 115 for housing the suction grille movable part 109b. The suction grill movable part 109b is formed with cable mounting parts 110a to 110d, which are formed at appropriate positions at the four corners of the suction grill movable part 109b. In addition, in FIG. 1, only the cable attachment part 110a, 110b (not shown) arrange|positioned at the front side of a paper surface is shown. Suspension cables 112 are fixed to the cable mounting portions 110a and 110b through the cable holding mechanism so as to hold the movable portion 109b of the fixed suction grill so as to be able to move up and down. A filter 111 is placed on a surface of the suction grill movable portion 109b facing the indoor unit 100 .

Inside the housing 102, a lift motor 113 and a roller 114 are disposed. The elevating motor 113 rotates the drum 114 to elevate the movable part 109b of the suction grill fixed to the other end of the suspension cable 112 . In addition, the lift motor 113 pulls up the suction grill movable part 109b to a position where the suction grill fixed part 109a and the suction grill movable part 109b are integrated during normal operation of the indoor unit 100 .

In the embodiment shown in FIG. 1 , although the elevating motor 113 is arranged on the left and right sides of the frame body 102 , the elevating motor 113 may be arranged on one of the frame body 102 by, for example, the configuration of Patent Document 1. In addition, the suspension cables 112 can also be driven by one lifting motor 113 on two sides of one side, and can be driven by another lifting motor synchronously driven by one lifting motor 113 on the other side. 113 drives are also available. In addition, four suspension cables 112 may be wound up and unwound by one elevating motor 113 , and four suspension cables 112 may be wound up and unwound by independent elevating motors 113 .

On the other hand, when the filter screen of the indoor unit 100 is replaced, cleaned, inspected, or parts replaced, etc., the lift motor 113 is activated according to an instruction from a remote controller (not shown) for controlling the indoor unit 100, so that The suction grill movable part 109b is lowered by a predetermined height, and is disposed so that an operator can access the inside of the housing 102 .

In this exemplary embodiment, the outer edge portion of the suction grill fixing portion 109a is formed to extend to the vicinity of the air outlets 108 formed in four directions of the decorative panel 107 from a design point of view. Therefore, the suction grill 109 of this embodiment has a larger area as a whole than the conventional suction grill, and its weight also increases. If the weight of the suction grill fixing part 109a increases, it is also assumed that the driving torque of the lifting motor 113 will be insufficient, and in order to improve the design of the indoor unit 100, the design of the lifting motor is changed. Increased cost can detract from the benefits of improved design.

Therefore, it is preferable to configure so that even if the area of the suction grill fixing part 109a is increased, the same lift motor 113 as in the past can be used. In an exemplary embodiment, in order to improve the above-mentioned trade-off, a part of the suction grill fixed part 109a is individually configured as the suction grill movable part 109b, and the suction grill movable part 109b Lifting and lowering by means of suspension cables 112.

The suction grill movable part 109b is substantially rectangular in one exemplary embodiment, and the filter 111 is provided on the frame body 102 side of the suction grill movable part 109b. In addition, the cable installation parts 110a-110b for fixing the suspension cable 112 as a suspension cable holding mechanism are arrange|positioned at the appropriate position of 4 corners of the suction grill movable part 109b. Therefore, even if the area of the suction grille fixing portion 109a is enlarged to improve the design, it is not necessary to change the design of the elevating motor 113 in response to the increase in weight accompanying the increase in area, and the indoor unit can be improved at a minimum cost. 100% designability.

Fig. 2 is a perspective view showing a state 200 in which the indoor unit 100 of the exemplary embodiment operates the elevating motor 113 to lower the suction grille movable portion 109b to a predetermined position. The frame body 102 is accommodated in the accommodation space inside the ceiling. In addition, a pipe 120 for supplying and discharging refrigerant for air conditioning is connected to the frame body 102, and a heat exchange medium from an outdoor unit (not shown) is supplied to the heat exchanger 103 to perform indoor air conditioning. .

The decorative panel 107 is positioned at the level of the top panel on the lower side of the frame body 102 to hide the gap between the top panel and the installation part of the indoor unit, thereby improving the design of the indoor unit 100 . As shown in FIG. 2 , during maintenance, etc., the suction grille movable part 109 b is lowered to a predetermined height by the suspension cable 112 , and other maintenance such as replacement of the filter 111 and cleaning inside the frame 102 can be performed.

In the outer part of the long side of the suction grill movable part 109b of the decorative panel 107, the suction grill fixed part 109a is fixed, and by cooperating with the rectangular suction grill movable part 109b, the suction grill can be The whole is extended to be adjacent to the outlet 108 . In addition, the inner portion of the suction grill fixing portion 109a is configured to be an edge position of the inner space of the decorative panel 107 formed by a plurality of continuous edge portions 116 .

Suspension cables 112 extend vertically upward from the movable portion 109b of the suction grill to the cable guide fixed to the cable guide fixing portion 107a formed on the surface of the decorative panel 107 facing the frame body 102 107b. In addition, the other end of the suspension cable 112 is connected to the drum 114 so as to be reelable, so that the movable portion 109b of the suction grill can be raised and lowered and installed on the decorative panel 107 .

In the vicinity of the four corners of the suction grill movable part 109b, a cable installation part 110a that functions as a suspension cable holding mechanism is arranged, and one end of the suspension cable 112 is fixed to the cable installation part. 110a. The movable part 109b of the suction grille is to rotate the drum 114 when the lifting motor 113 is activated, and is linked to the winding and unwinding of the suspension cable 112 to move up and down freely.

The suction grill fixing part 109a is detachably provided on the decorative panel 107, and a housing part 115 for accommodating the suction grill movable part 109b is formed at the center thereof. In the present embodiment, the suction grill fixing portion 109a is provided on the decorative panel 107 so as to extend obliquely up and down on the paper surface. Correspondingly, the movable part 109b of the suction grille has a long side along the extension direction of the fixed part 109a of the suction grille, and a short side perpendicular to it, and when the suspension cable 112 is wound up, it will be accommodated. The receiving portion 115 formed on the suction grill fixing portion 109a is integrated with the suction grill fixing portion 109a and the suction grill movable portion 109b to improve the design of the indoor unit 100 when viewed from the indoor side.

After the work of touching the interior of the indoor unit 100 is completed, for example, by operating the remote controller, the elevating motor 113 is activated to wind up the suspension cable 112, and the suction grill movable part 109b is accommodated in the suction grill fixed part 109a. 115 of the containment unit. In this case, a switch or a sensor that stops the lift motor 113 is provided at an appropriate position on the decorative panel 107, and when the movable portion 109b of the suction grill is pulled up to a predetermined position, the lift motor 113 is automatically stopped. also can. In addition, after the suction grill movable part 109b is accommodated in the housing part 115, the latch mechanism may be suitably operated and the suction grill movable part 109b may be fixed to the suction grill fixed part 109a.

Fig. 3 shows a state 300 in which the indoor unit 100 according to this embodiment is attached to the suction grill fixing portion 109a in a different arrangement. In FIG. 3 , it should be noted that the fixing part of the suction grille fixing part 109 a is rotated 90° clockwise with respect to the embodiment in FIG. 2 and installed on the decorative panel 107 . As shown in Fig. 3, when the indoor unit 100 is installed indoors, the suction grille fixing part 109a must be installed in any direction of 90° rotation depending on the conditions of the construction site or design requirements. .

In the embodiment shown in FIG. 3 , the suction grill fixing portion 109 a is fixed to the decorative panel 107 in a state rotated by 90° from the embodiment in FIG. 2 . In addition, in this case, the suction grill movable part 109b is preferably constructed so that the part fixed to the suction grill fixed part 109a is in the same direction as the grid 109c in terms of design. Therefore, as shown in FIG. 3, in terms of the exemplary embodiment shown in FIG. 3, the direction of the receiving portion 115 formed in the suction grid fixing portion 109a is rotated 90° counterclockwise compared with FIG. 2, corresponding to Here, the direction of the movable portion 109b of the suction grill is also rotated 90° counterclockwise.

As can be seen from Fig. 2 and Fig. 3, the suspension cable 112 is driven through the cable guide 107b arranged on the decorative panel 107, so if the installation direction of the decorative panel 107 is rotated with respect to the suction grill fixing part 109a, Then the position of the cable installation portion 110a relative to the cable guide fixing portion 107a in FIG. 2 , that is, the cable guide 107b will be shifted.

If the suspension cable 112 is wound up in this state, the suspension cable 112 will rise while being pulled by the cable guide 107b shifted to the position, so the suspension cable 112 will bend greatly, and then As the suction grill movable part 109b approaches the receiving part 115 of the suction grill fixed part 109a, the winding torque increases, resulting in a large load on the elevating motor 113, the suspension cable 112 and the cable guide 107b. Therefore, even if it is a structure which raises and lowers the suction grille movable part 109b in consideration of the capability of the lifting motor 113, it assumes that the capability of the lifting motor 113 may be insufficient.

Therefore, in this embodiment, the cable guide fixing part 107a is formed in the decorative panel 107 so that the suction grill movable part 109b can be accommodated regardless of the installation direction of the suction grill fixing part 109a.

FIG. 4 is a perspective view showing the structure inside the frame of the decorative panel 107 according to the present embodiment as viewed from the frame body 102 side. Fig. 4 (A) shows the inner structure of the decorative panel 107, and Fig. 4 (B) enlarges the area of the circle 130 in Fig. 4 (A) to show the cable guide fixing part 107a and the cable guide of this embodiment. Enlarged view of piece 107b.

As shown in FIG. 4(A), air outlets 108 are formed in four directions on the decorative panel 107 . In addition, in the decorative panel 107, an edge portion 116 for forming an inner opening for taking in indoor air is formed on the inner side of the decorative panel 107 in the circumferential direction. The cable guide fixing part 107a of this embodiment is respectively formed on the edge part 116 gathered at the corner, and the suction grill movable part 109b which can correspond to the installation direction of the suction grill fixed part 109a is opposite to the decorative panel. 107 is configured by way of direction change.

Fig. 4(B) enlarges the portion of Fig. 4(A) where the cable guide fixing part 107a shown in the circle 130 is formed, and shows the connection with the cable installation part 110a of the suction grille movable part 109b. A diagram of the positional relationship. As shown in FIG. 4(B), a first cable guide fixing part 107a1 is formed in the corner area of the edge 116 of the decorative panel 107, and the first cable guide fixing part 107a1 houses a guide wire guide. The cable guide 107b of the member 107c. The cable guide 107b is fixed to the first cable guide fixing portion 107a1 by mounting screws 107d. The cable guide fixing portion 107a is formed to protrude inward from the edge portion 116 so that the suspension cable 112 extends to the suction grill movable portion 109b.

The guide member 107c is formed in the shape of a hollow cylinder, and is chamfered in a convex shape so that at least the upper end thereof moves smoothly without friction with the suspension cable 112 . Suspension cables 112 extend from the roller (not shown) through the inner side of the guide member 107c beyond the lower surface of the decorative panel 107 to the vertical lower side to the movable part 109b of the suction grille, and are further fixed on the suction grille formed on the suction grille. The cable installation part 110a of the grid movable part 109b.

With the arrangement shown in FIG. 4 , the suspension cables 112 can be moved smoothly, and the suction grill movable part 109 b can be reliably housed in the housing part 115 formed in the suction grill fixed part 109 a. And, as shown in FIG. 4(B), the second cable guide fixing portion 107a2 is located at a position where the edges 116 that define and form the inner opening of the decorative panel 107 gather to form an angle, so that the first cable The arrangement of the guide fixing portion 107a1 rotated by 90° is formed protruding toward the inner space near the corner portion. In addition, the term "near" means that when the cable mounting part 110a formed on the rectangular suction grille movable part 109b is rotated by 90°, it is formed close to the corner (corner) so as to overlap in the vertical direction. .

Therefore, even in the case where the suction grill fixing portion 109a is not arranged as shown in FIG. 2 but is arranged as shown in FIG. 3 due to the relationship between design and construction, in the exemplary embodiment, it is also There is a cable guide fixing part 107a matching the position of the cable mounting part 110a of the suction grill movable part 109b. Moreover, the decorative panel 107 only needs to be formed with a cable guide fixing part 107a for accommodating the cable guide 107b. Depending on the construction situation on site, the cable guide 107b is fixed on the movable part of the suction grill. The cable guide fixing part 107a at the position of the cable mounting part 110a at 109b can obtain elastic workability.

Fig. 5 shows an embodiment in which the positions of the decorative panel 107 and the suction grille movable portion 109b according to the present embodiment are viewed from the inside of the indoor unit 100 in a plan view. As shown in FIG. 5(A), the decorative panel 107 is provided with an edge portion 116 defining an inner opening of the decorative panel 107, and can take in indoor air. Further, the cable guide fixing portions 107a1 to 107a8 are formed on both sides of the edge portion 116 that protrudes from the edge portion 116 of the decorative panel 107 toward the inner opening and faces the inner opening through the inner opening. Therefore, in the exemplary embodiment, two cable guide fixing parts 107a1 and 107a7, for example, are arranged at corners where the edge parts 116 converge.

On the other hand, as shown in FIG. 5(B), the cable mounting portion 110a of the suction grill movable portion 109b is arranged at a position corresponding to the cable guide fixing portions 107a1, 107a2, 107a3, and 107a4. The suspension cable 112 is connected to a drum (not shown) through a guide member 107c formed on the cable guide 107b extending from the cable mounting portion 110a1 and disposed on the cable guide fixing portion 107a1. Similarly, the suspension cables 112 are connected to the drums (not shown) through the guide members 107c disposed at the cable guide fixing portions 107a2 to 107a4 respectively from the cable mounting portions 110a2 to 110a4.

Here, if the elevating motor 113 is described again, the elevating motor 113 used to lift the suspension cables 112 can also be arranged on the left and right sides of FIG. The single lift motor 113 lifts the suction grill movable part 109b. In addition, the elevating motor 113 corresponding to each suspension cable 112 can also be arranged depending on a specific application.

FIG. 6 shows an exemplary embodiment in which the suction grille fixing portion 109a is attached to the decorative panel 107 in a state rotated 90° clockwise from the embodiment in FIG. 5 . In the embodiment shown in FIG. 6, the suspension cables 112 extending from the cable installation parts 110a1-110a4 shown in FIG. 6 (B) respectively, as shown in FIG. The guide members 107c are disposed on the cable guide fixing portions 107a5, 107a6, 107a7, 107a8 of the decorative panels 107 that are present vertically above them.

After that, the suspension cable 112 is connected to the drum 114 so that the other end can be wound up. Therefore, even when the suction grill fixing part 109a is attached to the decorative panel 107 in a state rotated by 90°, the suction grill movable part 109b can be provided in any direction.

According to the above-described embodiments, the design of the indoor unit 100 of the ceiling-embedded air conditioner can be improved, and the workability when the suction grill fixing portion 109a is provided on the indoor unit 100 can be improved.

Hereinafter, a construction method in a case where the exemplary indoor unit 100 of this embodiment is installed indoors will be described.

After installing the indoor unit 100 on the ceiling, the decorative panel 107 is fixed to the frame body 102 . After that, the fixing part of the suction grill fixing part 109a is attached to the decorative panel 107 in consideration of the installation place and other conditions.

In addition, considering the direction of the grid 109c of the installed suction grille fixing part 109a, it is preferable to select and determine from a position with a difference of 90° in a manner consistent with the direction of the grid 109c of the installed suction grille fixing part 109a. The direction of the suction grill movable part 109b is adjusted to adjust the installation position of the cable guide 107b. After that, the suspension cable 112 is fixed to the suction grill movable part 109b through the guide member 107c from the drum 114 .

After the setting is completed, the lifting motor 113 is driven by the operation of the remote control, etc., so that the movable part 109b of the suction grille is raised to the level of the fixed part 109a of the suction grille, and the latch mechanism is used to improve the position of the movable part 109b of the suction grille if necessary. Integrality, and the setting of the suction grill fixing part 109a is completed.

When performing maintenance, the remote control is operated to unwind the suspension cable 112, and the suction grille movable part 109b is lowered from the top plate to a predetermined position, and maintenance for filter replacement and cleaning is performed. After the maintenance, the elevating motor 113 is driven again to integrate the suction grill movable part 109b and the suction grill fixed part 109a.

By constructing as above, regardless of the installation direction of the suction grill fixed part 109a, the suction grill movable part 109b can be placed in a manner that does not impose a burden on the elevating motor 113, the suspension cable 112, and the cable guide 107b. Set up smoothly. In addition, it should be understood that even if the suction grill movable part 109b is a square shape, this embodiment can be carried out without hindrance.

[modified example] Fig. 7 shows a modified example of an indoor unit 700 which is a modified example of this embodiment. In the modified example shown in FIG. 7, the same reference numerals are used for members common to those of the embodiment shown in FIG. 1, and description thereof will be omitted. In the indoor unit 700 shown in FIG. 7 , there is formed a fixing member for detachably fixing one end of the suspension cable 112 to an appropriate position of the decorative panel 107 . In addition, guide pulleys 110b for fixing the suspension cables 112 functioning as a suspension cable holding mechanism are provided at appropriate positions on the four corners of the suction grill movable part 109b.

On the other hand, an elevating motor 113 is provided in the indoor unit 700 , and a drum 114 is rotatably arranged on the elevating motor 113 . A suspension cable 112 is wound around the drum 114 from the left direction of the paper to the guide pulley 110b of the suction grill movable part 109b. When the lifting motor 113 is activated, the suction grill will move as shown in FIG. 7 The part 109b is pulled up toward the suction grill fixing part 109a, and is integrated with the suction grill fixing part 109a.

In the embodiment shown in FIG. 7 , other elevating motors 113 are provided on the backside of the paper, and the suspension cables 112 passing through the backside of the paper can be rewound and unwound by two elevating motors 113 . In addition, the suspension cable 112 passing through the front side of the drawing and the suspension cable 112 passing through the rear side of the drawing can also be wound up and unwound by one lifting motor 113, so that the suction grille movable part 109b can be raised and lowered. .

By using one elevating motor 113, synchronous winding and unwinding of the suspension cables 112 respectively passing through the front side of the paper and the back side of the paper can be performed, and power consumption during maintenance can also be suppressed.

And, in response to the change of the installation direction of the suction grille fixing part 109a, the cable guide fixing part 107a is formed on one of the edges 116 of the inner opening of the decorative panel 107, and the cable guide fixing part 107a is formed on the side facing the The edge portion 116 of the edge portion 116 is formed with a fixing member for fixing the other end of the suspension cable 112 . In this case, for example, the cable guide fixing portion 107a formed at a corresponding position can be used as a fixing member.

In addition, the same is true for the pair of edge portions 116 rotated by 90°. The cable guide fixing portion 107a is formed on one of the facing edge portions 116, and the hanging portion 107a is formed on the other edge portion 116. The other end of the suspension cable 112 is a fixing member that is fixed in a detachable manner.

In the modified example, when the installation direction of the suction grill fixing portion 109a is changed by 90°, the suspension cable 112 is first fixed to the fixing member or the cable guide fixing portion 107a formed at a position rotated by 90°. . Afterwards, the suspension cable 112 passes through the guide pulley 110b of the movable portion 109b of the suction grid, and passes between the second edge portion 116 formed opposite to the first edge portion 116 of the fixed suspension cable 112. The guide member 107c of the cable guide fixing portion 107a extends to the drum 114 .

After other work such as replacing the filter is completed, the suspension cable 112 is wound up in response to activation of the elevating motor 113, whereby the suction grill movable part 109b is accommodated in the suction grill fixed part 109a. [Industrial Utilization Possibility]

As described above, according to the present invention, it is possible to provide an air conditioner capable of efficiently installing the suction grill regardless of the installation direction of the suction grill.

100: indoor unit 102: frame 103: heat exchanger 104: Drain pan 105: fan 106: Fan motor 107: Decorative panel 107a: Cable guide fixing part 107a1~107a8: Cable guide fixing part 107b: Cable guide 107c: Guide member 107d: Mounting screws 108: Blow outlet 109: suction grille 109a: suction grill fixing part 109b: Movable part of suction grille 109c: lattice 110a: cable installation part 110a1~110a4: Cable installation part 110b: guide pulley 111: filter screen 112: suspension cable 113: Lifting motor 114: roller 115: Containment Department 116: Edge 120: Piping 200: indoor unit 700: indoor unit

[ Fig. 1] Fig. 1 is a schematic cross-sectional view of an indoor unit 100 of an air conditioner according to this embodiment. [ Fig. 2] Fig. 2 is a perspective view showing a state 200 in which the indoor unit 100 of an exemplary embodiment operates the elevating motor 113 to lower the suction grille movable part 109b to a predetermined position. [ Fig. 3] Fig. 3 is a diagram showing a state 300 in which the suction grill fixing part 109a is attached to the decorative panel 107 in a state rotated 90° clockwise in the indoor unit 100 according to this embodiment. [FIG. 4] FIG. 4 is a perspective view showing the inside structure of the frame of the decorative panel 107 of this embodiment as seen from the frame 102 side. [ Fig. 5 ] Fig. 5 is a diagram showing an embodiment in which the position of the decorative panel 107 and the suction grill movable part 109b of the present embodiment is viewed from the inside of the indoor unit 100 . [FIG. 6] FIG. 6 is a diagram showing an exemplary embodiment in which the suction grille fixing part 109a is attached to the decorative panel 107 in a state rotated 90° clockwise from the embodiment in FIG. 5. [FIG. 7] FIG. 7 is a diagram showing a modified example of the indoor unit 700 which is a modified example of the present embodiment.

107: Decorative panel

107a1~107a8: Cable guide fixing part

109b: Movable part of suction grille

110a1~110a4: Cable installation part

115: Edge

116: Edge

Claims (12)

A ceiling-embedded air conditioner, comprising an indoor unit including: a fan; a heat exchanger; a decorative panel having a cable guide fixing portion and an air outlet; a suction grill installed on The decorative panel; an elevating motor for driving a suspension cable that enables the suction grille to be raised and lowered; and a plurality of the cable guide fixing parts are arranged across corners of the inner opening of the decorative panel. The ceiling-embedded air conditioner according to Claim 1, which includes: a suction grill fixing portion fixed to the decorative panel; The movable part of the suction grill includes a grill arranged on the indoor side in the fixed part of the suction grill and the movable part of the suction grill. The ceiling-embedded air conditioner according to claim 2, wherein the movable part of the suction grille is a rectangle having a long side in the direction adjacent to the blowing outlet, and is connected to the suction by the suspension cable. Integrated grille. The ceiling-embedded air conditioner as described in claim 2, wherein Among them, the movable part of the suction grille is equipped with suspension cable holding mechanisms for holding the suspension cables at four corners. The ceiling-embedded air conditioner according to Claim 1, wherein a cable guide is fixed to the fixing portion of the cable guide, and the cable guide includes: a guide member that is the suspension The hollow cylinder in which the suspension cables are inserted has a convex shape so that the top moves smoothly without friction with the suspension cables. The ceiling-embedded air conditioner according to claim 5, wherein the cable guide is fixed to the cable guide fixing portion formed at a position rotated by 90°. The ceiling-embedded air conditioner according to claim 5, wherein the cable guide is detachably fixed to the cable guide fixing portion. The ceiling-embedded air conditioner according to claim 4, wherein the suspension cable is fixed to the first edge facing the inner opening, and the suspension cable is fixed to the second edge facing the opening. The cable guide through which the suspension cables are inserted, the suspension cable holding mechanism is a guide pulley for guiding the suspension cables in a lateral direction. The ceiling-embedded air conditioner as described in claim 2, wherein Among them, the first grid formed on the movable part of the suction grill extends toward the direction of the second grid formed on the suction grill, so that the area of the suction grill arranged on the indoor side of the decorative panel is increased. big. A method for installing a ceiling-embedded air conditioner is a method of installing a ceiling-embedded air conditioner including an indoor unit in a room. The indoor unit is equipped with: a fan for circulating indoor air; a fan motor; The heat exchanger circulates a heat exchange medium to exchange heat with the aforementioned indoor air; and the lifting motor is used to drive the suspension cables that enable the suction grille to rise and fall; the aforementioned method includes: fixing the decorative panel to the frame In the above step, the decorative panel is disposed on the indoor side of the indoor unit, and includes: a cable guide fixing portion protruding toward an inner opening formed by a continuously extending edge section for allowing the indoor air to circulate. formed, and a plurality of them are disposed across the corner of the inner opening; The step of rotating the aforementioned decorative panel in such a way that the position on the lower side of the direction is consistent with the lattice direction of the remaining part of the aforementioned suction grille; the movable part of the suction grille is installed on the aforementioned decorative panel and adjacent to the aforementioned The air outlet of the decorative panel is formed and can be raised and lowered by the suspension cable. The installation method according to claim 10, wherein the movable part of the suction grille is a rectangle having a long side in the direction adjacent to the blowing outlet, and includes: making the above-mentioned A step of integrating the movable part with the aforementioned suction grille. The installation method according to claim 10, further comprising: holding the suction grill so that the maintenance of the ceiling-embedded air conditioner can be performed, unwinding the suspension cable, and making the suction grill movable The step of descending from the top plate to a predetermined position.

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