JP6138001B2 - Indoor unit of air conditioner and air conditioner using the same - Google Patents

Description

  The present invention relates to an air conditioner.

  There is an air conditioner having a mechanism in which a gear is provided in each structure including a motor and a sensor, and the sensor is rotated in an arbitrary direction by the rotation of the gear. Patent Document 1 discloses an indoor unit of an air conditioner including a rotating structure in which a stepping motor is disposed on the upper side and a sensor is disposed on the lower side. It is arranged in the lower center of the front of the indoor unit.

JP 2012-37129 A

  However, since the air conditioner described in Patent Document 1 has a large rotating structure in the vertical direction, there is a problem in that intake of air in front of the indoor heat exchanger is hindered and heat exchange efficiency is lowered. The smaller the rotary sensor mechanism is, the more advantageous it is for the arrangement in the indoor unit and the intake of the indoor heat exchanger, and it is effective in reducing the power consumption.

  An object of the present invention is to provide an air conditioner in which a rotary sensor mechanism is reduced in size and power consumption is reduced.

  In order to solve the above problems, an indoor unit of an air conditioner according to the present invention includes a sensor board having a sensor, a sensor holder that holds the sensor board, a hollow gear that is connected to the sensor holder, and a hollow shape. A rotary sensor mechanism having a motor for driving the gear is provided, and a part of the sensor substrate is located inside the hollow gear.

  According to the present invention, it is possible to provide an air conditioner in which the rotary sensor mechanism is downsized and power consumption is reduced.

The block diagram of the air conditioner which concerns on 1st Embodiment Sectional drawing of the indoor unit of the air conditioner which concerns on 1st Embodiment The front view of the indoor unit of the air conditioner which concerns on 1st Embodiment Overall exploded view of the rotary sensor machine according to the first embodiment Bottom view of sensor mechanism holding base according to the first embodiment Exploded view of a rotary sensor according to the first embodiment Sectional drawing of the rotation-type sensor which concerns on 1st Embodiment Hollow shape gear diagram according to the first embodiment Sectional drawing of the hollow shape gear figure which concerns on 1st Embodiment Top view of sensor mechanism cover diagram according to the first embodiment The bottom view of the sensor mechanism cover figure concerning a 1st embodiment. Front view of sensor mechanism cover and rotary sensor according to first embodiment Left bottom view of sensor mechanism cover and rotary sensor according to first embodiment Sectional drawing of the rotation-type sensor which concerns on 2nd Embodiment

  Hereinafter, the best mode of the present invention will be described in detail with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected to the same part and the description is abbreviate | omitted about what was once demonstrated.

(First embodiment)
FIG. 1 is a configuration diagram of an air conditioner according to the first embodiment. FIG. 2 is a cross-sectional view of the indoor unit of the air conditioner according to the first embodiment. FIG. 3 is a front view of the indoor unit of the air conditioner according to the first embodiment.

  As shown in FIG. 1, the air conditioner 1 is configured by connecting an indoor unit 2 and an outdoor unit 3 with a connection pipe 4. The indoor unit 2 can be remotely operated by a separate remote controller 5. The indoor unit 2 includes an indoor heat exchanger 7 (not shown here), and the outdoor unit 3 includes a compressor (not shown), an expansion mechanism (not shown), and an outdoor heat exchanger (not shown). Have

  As shown in FIG. 2, the indoor unit 2 includes an indoor heat exchanger 7 inside the housing base 6. A cross-flow fan type indoor fan 8 having a length substantially equal to the width of the indoor heat exchanger 7 is disposed downstream of the air flow of the indoor heat exchanger 7. A dew tray 9 is disposed below the indoor heat exchanger 7. The indoor heat exchanger 7 and the indoor blower 8 are covered with a decorative frame 10 provided with a filter for preventing entry of dust and a filter cleaning mechanism, and a front panel 11 is attached to the front surface of the decorative frame 10. The upper surface of the indoor heat exchanger 7 is provided with an upper air inlet 12a for sucking indoor air, and a front air inlet 12b for sucking indoor air is provided on the front. The air sucked from the upper air inlet 12a and the front air inlet 12b flows to the indoor heat exchanger 7 through which the air flows. Below the indoor unit 2, an air outlet 13 that blows out air with adjusted temperature and humidity is provided. The room air sucked from the air inlet 12 by the indoor blower 8 flows through the indoor heat exchanger 7 and the indoor blower 8 into the blowout air passage 8a having a width substantially equal to the length of the indoor blower 8. Thereafter, the air in the blowout air passage 8a is deflected in the left-right direction by the left and right wind direction plates 14 located in the blowout air passage 8a, and the vertical direction is deflected by the up-and-down air direction plate 15 located in the air blowout port 13 so that the air outlet 13 Is blown into the room. The conditioned air that has passed through the indoor heat exchanger 7 flows into the air outlet 13 and is blown out.

  The indoor unit 1 is provided with a rotary sensor mechanism 16 having a function of scanning the indoor space to measure the temperature distribution in the room and to sense the occupants. The rotary sensor mechanism 16 is located below the front air suction port 12 b and above the air discharge port 13, and is located on the front side of the dew tray 9.

  As shown in FIG. 3, the rotary sensor mechanism 16 is located near the center of the longitudinal direction of the indoor unit 2 (hereinafter referred to as “X direction”) in order to scan a wide range of the indoor space. It is arranged below in the short direction. Further, the rotary sensor mechanism 16 may be disposed below the front panel 11.

  FIG. 4 is an overall exploded view of the rotary sensor mechanism according to the first embodiment. FIG. 5 is a bottom view of the sensor mechanism holding base according to the first embodiment.

The rotary sensor mechanism 16 is disposed in a space 39 between the front air inlet 12 b and the air outlet 13, the sensor mechanism holding base 17 fixed to the indoor unit 2, and the sensor mechanism holding base 17 in the X direction. A rotary sensor 18 housed so as to be rotatable, a lead wire (not shown) connected to a sensor substrate (not shown here) disposed in the rotary sensor 18, and the lead wire upward A sensor mechanism cover 21 having a cylindrical wall guide 36 that guides the motor, and a motor 22 connected to a gear 37 for rotating the rotary sensor 18. When the motor 22 is driven, the rotary sensor mechanism 16 is rotated via the gear 37.
The rotary sensor mechanism 16 is arranged so that the sensor light receiving element opening 29 faces the indoor direction. Each will be described below.

  The sensor mechanism holding base 17 is a half-box type housing in which a through hole 23 for inserting the rotary sensor 18 is opened in the vertical direction, and the lower surface of the through hole 23 is used to hold the rotary sensor 18. It has a saucer structure 24. A through hole 25 for inserting the motor 22 and a motor screw hole 26 for attaching the motor 22 are formed on the lower surface of the sensor mechanism holding base 17. Further, a sensor mechanism cover fixing screw hole 28 for fixing the sensor mechanism cover 21 is formed on the upper surface of the sensor mechanism holding base 17.

  FIG. 6 is an exploded view of the rotary sensor according to the first embodiment. FIG. 7 is a cross-sectional view of the rotary sensor according to the first embodiment.

  The rotary sensor 18 includes a sensor board 19 having a sensor 19a, a light receiving element cover 20 for protecting the sensor 19a provided on the sensor board 19, and lead wires (not shown) connected to the sensor board 19. And a front sensor holder 27a for holding the sensor substrate 19 from the front, a rear sensor holder 27b for holding the sensor substrate 19 from the rear, and a hollow gear 31 having a hollow shape. Note that the sensor holder 27 may be configured without being divided into the front sensor holder 27a and the rear sensor holder 27b, and the sensor substrate 19 may be held.

The hollow gear 31 has a hollow shape so that a pair of sensor holders 27 formed by the front sensor holder 27a and the rear sensor holder 27b can be inserted. The hollow gear 31 is driven by the motor 22 via the gear 37. Instead of the gear 37, the hollow gear 31 may be driven by the motor 22 via another mechanism. Further, the hollow gear 31 may be driven directly by the motor 22.
The hollow gear 31 is connected (joined) to the sensor holder 27. That is, in the present embodiment, a part of the sensor substrate 19 is located inside the hollow gear 31. According to the present embodiment, a part of the hollow gear 31 and the sensor substrate 19 can be overlapped in the vertical direction, and the vertical height of the rotary sensor 18 can be reduced. As described above, in the present embodiment, the rotary sensor 18 is positioned below the front air inlet 12b and above the air outlet 13. Therefore, if the height in the vertical direction of the rotary sensor 19 is lowered, a space for the front air inlet 12b can be secured, the amount of air flowing through the indoor unit 2 is increased, and the efficiency of the air conditioner 1 is increased. Can be increased.

  The hollow gear 31 and the sensor holder 27 can be connected by screws, welding, or fitting. The hollow gear 31 may be configured as a part integrated with the sensor holder 27.

  The hollow gear 31 has a gear part 31a and a joint part 31b located above the gear part 31a. The sensor 19 a is located below the hollow gear 31. The sensor holder 27 is connected to the connection portion 31 b of the hollow gear 31. According to this embodiment, the sensor substrate 19 is disposed at a position penetrating the gear portion 31a of the hollow gear 31, and the vertical height of the rotary sensor 18 can be reduced.

  The joining portion 31b may be positioned below the gear portion 31a, the sensor 19a may be positioned below the hollow gear 31, and the sensor holder 27 may be connected to the connection portion 31b of the hollow gear 31. .

  The front sensor holder 27a is provided with a sensor light receiving element opening 29 at a position corresponding to the sensor 19a, and a sensor light receiving element installation portion 30 for installing the sensor substrate 19 is provided inside the front sensor holder 27a. It has been. The sensor substrate 19 is held by the front sensor holder 27a and the rear sensor holder 27b in a state where the light receiving element cover 20 is arranged on the sensor 19a, and is joined by a plurality of screws. The sensor substrate 19 is held by the front sensor holder 27a and the rear sensor holder 27b so that the sensor 19a is on the front side and faces the indoor space obliquely downward.

  FIG. 8 shows a hollow gear according to the first embodiment. FIG. 9 is a cross-sectional view of the hollow gear diagram according to the first embodiment. The hollow gear 31 is a gear inserted from above the sensor holder 27 so as to be integrated with the sensor holder 27, and not only acts as a gear for the sensor holder 27 to rotate in the X direction, but also includes the front sensor holder 27a and It also has a function of assisting the fitting assembly of the rear sensor holder 27b.

  The hollow gear 31 is provided with a through hole 38 on the upper surface, and the inner wall surface 310 a of the through hole 38 is fitted into the upper and outer surfaces 310 b of the sensor holder 27. At this time, the protrusion of the sensor holder 27 and the shape of the through hole 38 of the hollow gear 31 are, for example, an alphabet D shape so that the hollow gear 31 does not rotate with respect to the sensor holder 27. In the present embodiment, the shape of the through hole 38 is an alphabetic D shape, but the shape is not limited as long as the rotation of the sensor holder 27 and the cap gear 31 is prevented.

  FIG. 10 is a top view of the sensor mechanism cover diagram according to the first embodiment. FIG. 11 is a bottom view of the sensor mechanism cover diagram according to the first embodiment.

  The sensor mechanism cover 21 is on the sensor mechanism holding base 17 and is a case that simultaneously covers the sensor holder 27 and the gear 37 disposed on the motor 22. In addition to preventing the hollow gear 31 from being pulled upward, the sensor mechanism cover 21 is a rotary type. It has a role of holding the sensor 18. The inner wall of the cover corresponding to the upper part of the hollow gear 31 of the sensor mechanism cover 21 is provided with a protrusion 32 for preventing the rotation type sensor 18 from over-rotating and for confirming the position of the rotation type sensor 18.

  FIG. 12 is a front view of the sensor mechanism cover and the rotary sensor according to the first embodiment. FIG. 13 is a left bottom view of the sensor mechanism cover and the rotary sensor according to the first embodiment.

  The rotation type sensor 18 rotates in the left-right direction to the protrusion 32 provided on the sensor mechanism cover 21 to prevent over-rotation and confirm the position of the rotation type sensor 18 at the same time when the air conditioner 1 is turned on. At this time, the protrusion 33 provided on the hollow gear 31 contacts the protrusion 32 provided on the sensor mechanism cover 21, so that the motor 22 changes the position of the sensor light receiving element opening 29 provided on the sensor holder 27. recognize. For example, since the current value flowing through the motor 22 increases when the protrusion 32 contacts the protrusion 33, the position of the sensor light receiving element opening 29 can be recognized by detecting the current value. And a position is adjusted by control of the motor 22 so that the sensor light-receiving element opening part 29 may face the front of the indoor unit 2. FIG. Thereafter, the rotary sensor mechanism 16 rotates in the left-right direction according to the control method, and scans the indoor space.

(Second Embodiment)
A different part from 1st Embodiment is demonstrated and description is abbreviate | omitted about the part which overlaps with 1st Embodiment. FIG. 14 is a cross-sectional view of a rotary sensor according to the second embodiment.

  In the first embodiment, the shape of the upper end portion of the sensor holder 27 is a claw shape 34 for preventing the hollow gear from being removed, and a claw shape gear 31 that is inserted from above at the time of assembly is provided on the upper end portion of the sensor holder 27. Hold in shape 34. The claw shape 34 prevents the hollow gear 31 from coming off by a removal preventing surface 35 which is a wall surface of the sensor holder for preventing the hollow gear from coming off. By adopting this configuration, a plurality of screws used for fixing the sensor holder 27 and the sensor substrate 19 can be reduced.

  As mentioned above, although each embodiment demonstrated the air conditioner which concerns on this invention, the embodiment of this invention is not limited to these description, A various change etc. can be performed.

  The sensor 19a in the present embodiment is assumed to be a camera element or an infrared light receiving element, but may be used as a sound sensing element, a gas sensing element, or the like.

1: air conditioner, 2: indoor unit, 3: outdoor unit, 4: connection piping, 5: remote control roller, 6: housing base, 7: indoor heat exchanger, 8: indoor blower, 8a: blowout air channel , 9: dew tray, 10: decorative frame, 11: front panel, 12a: air inlet (top), 12b: air inlet (front), 13: air outlet, 14: left and right wind direction plate, 15: up and down wind direction Plate: 16: Rotating sensor mechanism, 17: Sensor mechanism holding base, 18: Rotating sensor, 19: Sensor substrate, 19a: Sensor, 20: Light receiving element cover, 21: Sensor mechanism cover, 22: Motor, 23: Rotation Type sensor insertion through hole, 24: rotating sensor tray structure, 25: motor insertion through hole, 26: motor screw hole, 27: sensor holder, 27a: front sensor holder, 27b: Sensor holder, 28: screw hole for fixing the sensor mechanism cover, 29: sensor light receiving element opening, 30: sensor light receiving element installation part, 31: hollow gear, 31a: gear part, 31b: connection part, 32: protrusion, 33: Projection, 34: Claw, 35: Removal prevention surface, 36: Wall surface guide, 37: Gear, 38: Through hole, 39: Space, 310a: Inner wall surface, 310b: Upper and outer surface

Claims (3)

A sensor substrate having a sensor;
A sensor holder for holding the sensor substrate;
A hollow hollow gear connected to the sensor holder;
A rotary sensor mechanism having a motor for driving the hollow gear;
A part of the sensor substrate is located inside the hollow gear,
The hollow gear has a gear part and a joint located above the gear part,
The sensor is located below the hollow gear,
The sensor holder air conditioner indoor unit you characterized by being connected to the junction of the hollow gear. A front air inlet provided on the front;
An indoor heat exchanger through which air sucked from the front air inlet flows,
An air outlet through which air that has passed through the indoor heat exchanger flows;
A dew pan located below the indoor heat exchanger,
2. The air conditioner according to claim 1, wherein the rotary sensor mechanism is located below the front air suction port and above the air discharge port and on the front side of the dew tray. Indoor unit of the machine. The indoor unit of the air conditioner according to claim 2,
Compressor, an expansion mechanism, an air conditioner characterized by comprising an outdoor unit of an air conditioner having an outdoor heat exchanger.