KR20100090140A - Indoor unit for air conditioner - Google Patents

Abstract

PURPOSE: An indoor unit of an air conditioner is provided to prevent a sensing range from being limited or a sensing function from being disturbed by an intake panel by installing a sensing unit to the intake panel. CONSTITUTION: An indoor unit(10) of an air conditioner comprises a cabinet(11), a front panel(12), fan assembly, a heat exchanger, an intake panel(13), a filter, a sensor module(20), and a module supporter. The cabinet is installed to the indoor ceiling. The front panel is connected to the upper end of the cabinet and comprises indoor air intake and outlet. The fan assembly is accepted in the cabinet to suck the indoor air. The intake panel is connected to be able to be lifted from the front panel to selectively shield the indoor air intake. The filter is supplied to the lower part of the fan assembly and purifies the indoor air sucked through the indoor air intake. The sensor module is installed on one side of the intake panel to move with the intake panel and rotates to detect the location of an indoor user. The module supporter is connected to the upper side of the intake panel and guides the motion of the sensor wire extended from the sensor module in the process that the sensor module rotates.

Description

Indoor unit for air conditioner {Indoor unit for air conditioner}

The present invention relates to an indoor unit of an air conditioner.

In general, an air conditioner is a device for heating or cooling air by using a refrigerant cycle, which is roughly classified into a domestic air conditioner and an industrial air conditioner.

In detail, the domestic air conditioner is divided into a separate air conditioner divided into an indoor unit and an outdoor unit, and an integrated air conditioner in which the indoor unit and the outdoor unit are integrally formed. In addition, the indoor unit of the separate air conditioner may be divided into a wall-mounted type attached to a wall, an upper-type type installed on a floor, and a ceiling-type (or cassette type) indoor type attached to a ceiling.

Recently, an IR (Infra Red) sensor or a PIR (Pyroelectric InfraRed) sensor is mounted on one side of an indoor unit, and a structure for intensively supplying cold or warm air to a space where an indoor resident is located has been released.

In addition, in the case of the ceiling type indoor unit, since the suction grille portion in which the indoor air is sucked is exposed to the outside, it tends to give a messy appearance, and a structure for removing the suction grille and lifting the suction panel itself to open and close the suction port has been proposed.

The present invention is to provide a indoor sensor structure so that the human body sensor is mounted on the ceiling-type air conditioner indoor unit in which the indoor air inlet is opened and closed by lifting of the suction panel, so that the operation of the sensor is not disturbed by the movement of the suction panel. For the purpose of

In addition, an object of the present invention is to provide a sensor module assembly for preventing the wires connected to the sensor from being broken or broken due to the rotation of the sensor.

According to an embodiment of the present invention, an air conditioner indoor unit includes: a cabinet mounted to an indoor ceiling; A front panel coupled to a lower end of the cabinet and having an indoor air inlet and an outlet; A fan assembly accommodated in the cabinet to suck indoor air; A heat exchanger wrapped around the fan assembly; A suction panel coupled to the front panel to be liftable and selectively shielding the indoor air intake; A filter provided below the fan assembly to purify the indoor air sucked through the indoor air intake; A sensor module mounted on one side of the suction panel to move together with the suction panel and rotatably provided to sense a position of an indoor resident; The module supporter is coupled to the upper surface of the suction panel and guides the movement of the sensor wire extending from the sensor module during the rotation of the sensor module.

In another aspect, an indoor air conditioner indoor unit includes a cabinet mounted to an indoor ceiling; A front panel coupled to a lower end of the cabinet and having an indoor air inlet and an outlet; A fan assembly accommodated in the cabinet to suck indoor air; A heat exchanger wrapped around the fan assembly; A suction panel coupled to be liftable from the front panel to selectively shield the indoor air intake port and having a sensor hole formed at one side thereof; A filter provided below the fan assembly to purify the indoor air sucked through the indoor air intake; A sensor module inserted into the sensor hole and rotatably provided to sense a position of an indoor resident; And limiting means for limiting the rotational limit of the sensor module.

According to the indoor unit of the air conditioner according to the embodiment of the present invention having the above configuration, the sensing means is mounted on the suction panel in the ceiling-type air conditioner indoor unit having a rising suction panel, the detection range by the suction panel Is limited or the phenomenon that the detection function is disturbed is eliminated.

In addition, according to the present invention, since the sensing means mounted on the indoor unit can be miniaturized as compared with the related art, there is an effect that the user can not recognize the sensing means.

In addition, there is an advantage that the wire connected to the sensor substrate is broken or broken during the rotation of the sensing sensor constituting the sensing means in the left and right directions.

In addition, by providing a means for limiting the rotation limit of the sensing sensor, there is an advantage that the phenomenon that the sensing sensor over-rotation is prevented.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an external perspective view of a ceiling type air conditioner indoor unit according to an exemplary embodiment of the present invention, and FIG. 2 is a longitudinal cross-sectional view schematically illustrating an internal configuration of the indoor unit.

1 and 2, the indoor unit 10 of the ceiling type air conditioner according to an embodiment of the present invention includes a cabinet 11 forming an exterior and a front panel coupled to a lower end of the cabinet 11. 12), a suction panel 13 coupled to be lifted from the front panel, a heat exchanger 17 enclosed inside the cabinet 11, and an inner space of the heat exchanger 17 The fan assembly 14, the shroud 16 provided under the fan assembly 14 to guide the flow of the sucked air, and the air sucked on the upper end of the shroud! 6 are purified. And a sensor module 20 mounted on one side of the filter 15 and the suction panel 13. The sensor module 20 detects the position and movement of the indoor occupant. .

In detail, four discharge holes 121 are formed at edge portions of the front panel 12, and discharge vanes 122 are rotatably provided at each discharge hole 121. That is, the wind direction of the discharged air is adjusted according to the rotation angle of the discharge vane 122. When the position of the indoor occupant is sensed by the sensor module 20, the rotation angle of the discharge vane 122 is adjusted by the controller so that air is ejected toward the occupant.

In addition, a suction port 111 for suctioning indoor air is formed at the center of the front panel 12, and the suction port 111 is selectively shielded by the suction panel 13. In addition, a plurality of racks 18 are extended to the upper surface of the suction panel 13, and the pinion 181 and the pinion rotated on the upper portion of the front panel 12 are coupled to the rack 18. A drive motor (not shown) may be provided. Therefore, the suction panel 13 moves a predetermined distance in the vertical direction by the operation of the drive motor, and the suction port 111 is selectively opened and closed by the movement of the suction panel 13. Note that the lifting means of the suction panel 13 is not limited to the rack / pinion structure presented above.

In addition, the air sucked through the suction port 111 is filtered through the filter 15, the foreign matter is filtered, and is sucked into the fan assembly (14). In detail, the fan assembly 14 includes a centrifugal fan 142 having an axial suction / radial discharge method and a fan motor 141 driving the centrifugal fan 142. In addition, the air sucked by the fan assembly 14 passes through the heat exchanger 17 and then is discharged back into the room through the discharge port 121.

On the other hand, the sensor module 20 is mounted on one side of the suction panel 13, the mounting position may be mounted on one side edge of the suction panel 13 as shown. Of course, the sensor module 20 may be mounted on the central portion of the suction panel 13. If the sensor module 20 is mounted at one edge of the front panel 12, the suction panel 13 may act as an obstacle when the suction panel 13 is lowered. That is, the infrared rays emitted from the sensor module 20 may hit the suction panel 13 and thus the sensing function may not be properly exhibited. However, as the sensor module 20 is mounted on the suction panel 13, as shown in the present invention, the detection area of the sensor module 20 is widened, and the detection range is prevented by the suction panel 13. There is an advantage that the phenomenon is limited.

In addition, a sensor for emitting infrared rays is accommodated in the sensor module 20, and the sensor is rotatable 360 degrees by a driving means. Configuration and operation of the sensor module 20 will be described in detail with reference to the accompanying drawings.

3 is a perspective view of a sensor module according to an embodiment of the present invention.

Referring to FIG. 3, the sensor module 20 according to an embodiment of the present invention includes a sensor 21 for detecting a position and / or a movement of an indoor resident, and a sensor board 22 on which the sensor 21 is seated. A sensor pedestal 23 supporting the sensor board 23, a sensor wire 24 extending from the sensor board 22, a rotating shaft 28 extending from a bottom surface of the sensor pedestal 23, and A circular rotary plate 25 extending in a direction perpendicular to the rotary shaft 28, a stem motor 26 connected to an end of the rotary shaft 28 to provide rotational force, and the step motor 26. A motor housing 270 is included.

In detail, when the sensor module 20 is mounted on the indoor unit 10, the sensor board 22 faces the indoor floor, and the motor housing 27 protrudes above the suction panel 13.

In more detail, the sensor pedestal 23 is mounted to the rotation shaft 28 inclined at an angle. Therefore, the sensor 21 detects the presence of an object or a resident while rotating 360 degrees in a state inclined at a predetermined angle from a vertical line.

In addition, a locking protrusion 231 protrudes from one end of the sensor pedestal 23 to set the rotational limit of the sensor 21. The function of the locking protrusion 231 will be described in more detail with reference to the accompanying drawings.

In addition, the rotating plate 25 may be provided with a wire holder 251 for fixing the sensor wire 24. The motor wire 261 extends from one side of the step motor 26 and is connected to the main controller of the indoor unit 10.

In addition, a motor bracket 271 extends at an edge of the motor housing 27, and the motor housing 27 is connected to an upper surface of the suction panel 13 by a fastening member penetrating the motor bracket 271. It is fixed. Therefore, when the sensor module 20 is mounted on the suction panel 13, the sensor board 22 rotates left and right 360 degrees while the rotating shaft 28 rotates.

4 is a plan view of a suction panel equipped with a sensor module according to an embodiment of the present invention, Figure 5 is an enlarged perspective view showing the mounting state of the sensor module, Figure 6 is cut along the line II 'of FIG. Longitudinal section.

4 to 6, a sensor hole 131 for penetrating the sensor module 20 is formed in the suction panel 13. In addition, a module supporter 14 is mounted on an upper surface of the suction panel 13 on which the suction module 20 is mounted. Although it is represented in a circle in the drawings, it is understood that it is not limited thereto.

In detail, the motor housing 27 constituting the sensor module 20 protrudes above the module supporter 14, and the motor bracket 271 extending from the motor housing 27 is the module supporter 14. It is fixedly coupled to the upper surface of the. The sensor wire 24 extending from the sensor border 22 is required for the space formed between the module supporter 14 and the suction panel 13. In more detail, a certain point of the sensor wire 24 is fixedly coupled to the bottom surface of the module supporter 14, and a wire portion from the fixed point to the sensor board 22 is connected to the module supporter 14. It is free to move along the bottom of the plane. This will be described in more detail below with reference to the drawings.

In addition, a hole for penetrating the sensor module 20 is formed in the module supporter 14, and the hole is formed to be substantially the same as the size of the rotating plate 25. That is, the rotating plate 25 may be rotated in a state of being inserted into a hole formed in the module supporter 14.

Referring to FIG. 6, the coupling state of the sensor module 20 will be described in detail. The lower end portion of the sensor hole 131, that is, the bottom portion of the suction panel 13, is located on the lower side (with the indoor mounted on the ceiling). Direction, rounded and projected smoothly. In addition, a cover (indicated by a dotted line) for protecting the sensor module 20 may be coupled to an end portion of the protruding portion.

In addition, a sleeve 133 having an inner diameter equal to an inner diameter of the sensor hole 131 extends upward at an upper end portion of the sancer hole 131, that is, an upper surface portion of the suction panel 13. The stopper 134 on which the locking protrusion 231 of the sensor module 20 is engaged protrudes from the inner circumferential surface of the sleeve 133. Therefore, the locking protrusion 231 is limited to the stopper 134 so that it can no longer rotate when the rotation shaft 28 rotates 360 degrees.

In addition, a support rib 132 for supporting the module supporter 14 protrudes from an upper surface of the suction panel 13. The support rib 132 is provided in the form of a sleeve having the same shape as the module supporter 14, and is in close contact with the bottom edge of the module supporter 14. Therefore, a space equal to the length of the support rib 132 is formed between the module supporter 14 and the suction panel 13. In addition, the sensor wire 24 extending from the sensor board 22 extends outward from the rotating plate 25 and is fixed to one point of the bottom surface of the module supporter 14.

7 is a partial perspective view showing a state of a sensor module in a state of looking up to an indoor unit according to an embodiment of the present invention.

Referring to FIG. 7, the sensor module 20 according to the exemplary embodiment of the present invention may rotate left and right 360 degrees inside the sensor hole 131 of the suction panel 13.

As shown, the locking protrusion 231 extending from the sensor pedestal 23 constituting the sensor module 20 rotates inside the sensor hole 131. In addition, the locking protrusion 231 rotates from one side of the stopper 134 protruding from the inner circumferential surface of the sleeve 133 and rotates approximately 360 degrees until the contact side is contacted with the opposite side. When the locking protrusion 231 is caught by the stopper 134, the step motor 26 reversely rotates to rotate 360 degrees again. The step motor 26 then causes the sensor 21 to sense the presence and movement of the indoor occupant while repeating the forward and reverse rotations at a predetermined speed.

8 is a view showing an assembled state of the sensor module according to an embodiment of the present invention, a perspective view of the bottom of the suction panel is removed.

Referring to FIG. 8, a portion protruding to the bottom surface of the module supporter 14, that is, the sensor 21 and the sensor pedestal 23, is exposed to the room through the suction panel 13. In addition, the rotating plate 25 rotates in or slightly above the hole formed in the module supporter 14. The step motor 26 and the motor housing 27 are fixed to the upper surface of the module supporter 14 by the motor bracket 271.

Here, the sensor wire 24 extending from the sensor board 22 is fixed to the rotating plate 25 by a wire holder 251. The sensor wire 24 is fixed by a wire fixer 141 on one side of the bottom surface of the module supporter 14.

In this state, when the sensor 21 performs a sensing operation, the rotating shaft 28 and the rotating plate 25 rotate. Then, the sensor wire 24 is repeated around the axis of rotation 28 and released. In addition, the sensor wire 24 between the wire holder 251 and the wire fixer 141 moves along the bottom surface of the module supporter 14, as indicated by a dotted line in the figure. As described above, the sensor wire 24 is repeatedly wound and unwinded along the bottom surface of the module supporter 14 according to the rotation operation of the sensor module 20, thereby causing the phenomenon that the sensor wire 24 is damaged. Is prevented. In detail, the end of the sensor wire 24 connected to the sensor board 22 is prevented from being separated from the sensor board 22 by the wire holder 251. In addition, an end of the sensor wire 24 connected to the main controller of the indoor unit 10 is prevented from being separated from the main controller by the wire fixer 141. In addition, a portion of the sensor wire 24 between the wire holder 251 and the wire fixer 141 is prevented from being entangled or twisted by the module holder 14.

In addition, the sensor module 20 is controlled by the locking protrusion 231 and the stopper 134 so as not to rotate more than 360 degrees, the phenomenon that the sensor wire 24 is wound around the rotating shaft is prevented.

1 is an external perspective view of an indoor unit of a ceiling air conditioner according to an embodiment of the present invention.

Figure 2 is a longitudinal sectional view schematically showing the internal configuration of the indoor unit.

3 is a perspective view of a sensor module according to an embodiment of the present invention.

4 is a plan view of a suction panel equipped with a sensor module according to an embodiment of the present invention.

Figure 5 is an enlarged perspective view showing the mounting state of the sensor module.

6 is a longitudinal sectional view taken along the line II ′ of FIG. 5;

Figure 7 is a partial perspective view showing the state of the sensor module in a state looking up the indoor unit according to an embodiment of the present invention.

8 is a view showing the assembly state of the sensor module according to an embodiment of the present invention, a bottom perspective view of the suction panel is removed.

Claims (12)

Cabinets mounted on the ceiling indoors; A front panel coupled to a lower end of the cabinet and having an indoor air inlet and an outlet; A fan assembly accommodated in the cabinet to suck indoor air; A heat exchanger wrapped around the fan assembly; A suction panel coupled to the front panel to be liftable and selectively shielding the indoor air intake; A filter provided below the fan assembly to purify the indoor air sucked through the indoor air intake; A sensor module mounted on one side of the suction panel to move together with the suction panel and rotatably provided to sense a position of an indoor resident; Is coupled to the upper surface of the suction panel, the air conditioner indoor unit includes a module supporter for guiding the movement of the sensor wire extending from the sensor module in the process of rotating the sensor module. The method of claim 1, The sensor module, A motor fixed to an upper surface of the module supporter; A rotating shaft connected to the rotating shaft of the motor and extending; A sensor board connected to an end of the rotating shaft; An air conditioner indoor unit including a sensor fixed to the bottom surface of the sensor board. The method of claim 2, A rotating plate extending at any point of the rotating shaft; The air conditioner indoor unit further includes a sensor wire extending from the sensor board and fixed to one side of a bottom surface of the rotating plate. The method of claim 3, wherein The sensor wire is fixed at any point of the edge of the module supporter, And an air conditioner indoor unit moving in a direction approaching or away from a center of the module support according to the rotation operation of the sensor. The method of claim 3, wherein The module supporter is coupled to the suction panel in a state spaced apart from the upper surface of the suction panel, And the sensor wire is movably received in a space between a bottom surface of the module supporter and an upper surface of the suction panel. The method according to claim 3 or 4, And the sensor wire is wound or unwound in a state of being in contact with the bottom surface of the module servo. Cabinets mounted on the ceiling indoors; A front panel coupled to a lower end of the cabinet and having an indoor air inlet and an outlet; A fan assembly accommodated in the cabinet to suck indoor air; A heat exchanger wrapped around the fan assembly; A suction panel coupled to be liftable from the front panel to selectively shield the indoor air intake port and having a sensor hole formed at one side thereof; A filter provided below the fan assembly to purify the indoor air sucked through the indoor air intake; A sensor module inserted into the sensor hole and rotatably provided to sense a position of an indoor resident; And An air conditioner indoor unit including limiting means for limiting the rotational limit of the sensor module. The method of claim 7, wherein The sensor module air conditioner indoor unit, characterized in that provided in a clockwise or counterclockwise rotation 360 degrees. The method of claim 7, wherein The bottom surface of the suction panel corresponding to the edge of the sensor hole protrudes rounded downwardly, And a cylindrical sleeve protrudes upward on an upper surface of the suction panel corresponding to an edge of the sensor hole. The method of claim 9, In the limiting means, A stopper protruding from an inner circumferential surface of the sleeve; The air conditioner indoor unit includes a locking projection projecting in the direction intersecting the rotation axis of the sensor module at any point of the sensor module is caught on the stopper. The method of claim 7, wherein In the limiting means, A stopper protruding from the inner circumferential surface of the sensor hole, The air conditioner indoor unit includes a locking protrusion protruding from the sensor module and caught by the stopper to limit rotation of the sensor module. The method according to claim 1 or 7, The sensor module includes an indoor air conditioner IR sensor.

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