JP6202262B2 - Air conditioner indoor unit - Google Patents

Description

  The present invention relates to an indoor unit of an air conditioner equipped with a human detection sensor.

  In an indoor unit of an air conditioner, a human detection sensor (infrared detection sensor) is attached to the indoor unit, and when a human body is detected by the human detection sensor, the air conditioning operation is started, and when no human body is detected, the operation is stopped. A control system is employed (Patent Document 1). This eliminates the need for any special operation for starting or stopping the operation of the air conditioner, and prevents unnecessary air conditioning from being performed in a room where there are no people.

  In Patent Document 1, when the human detection sensor is attached to the indoor unit, the human detection sensor is attached to the operation display board with the light receiving unit together with the light emitting element for displaying the operation state, the light receiving element for receiving the remote control signal, and the like. The operation display board with the light receiving unit is incorporated in the display unit, and the display unit is attached to the storage unit on the front surface of the indoor unit.

JP 2000-241009 A

  By the way, when only the human detection sensor is exposed from the indoor unit to the outside, a human detection sensor mounting hole is formed in the front panel set, and the human detection sensor is exposed to the hole. The mounting part is a conspicuous part and requires an excellent appearance.

  However, it is difficult to match the axis of the human detection sensor and the axis of the human detection sensor mounting hole, and the gap around the human detection sensor tends to be uneven, which may impair the appearance.

  An object of the present invention is to provide an indoor unit of an air conditioner in which an appearance of a portion where a human detection sensor is attached to a front panel set is improved.

In order to achieve the above-mentioned object, the invention according to claim 1 is composed of a main body and a front panel assembly, and air in which a human detection sensor is mounted so as to be exposed from a human detection sensor mounting hole formed in the front panel assembly. In an indoor unit of a harmony machine, a human detection sensor substrate to which the human detection sensor is attached, a cylindrical human detection sensor holder in which the human detection sensor substrate is fitted and the human detection sensor protrudes from a bottom surface, and the human detection Human detection sensor holder mounting means for mounting the sensor holder on the main body, and an opening from which the human detection sensor protrudes in the center, and the axis of the human detection sensor mounting hole from the outside to the human detection sensor mounting hole of the front panel set and a human detection sensor decorative frame mounted by inserting with play in a direction perpendicular to the heart, the person detecting sensor decorative frame, open in the person detecting sensor decorative frame As center of the shaft coincides with the axis of the person detecting sensor is positioned by the positioning means, the positioning means is formed from the person detecting sensor decorative frame so as to extend in the depth direction of the person detecting sensor decorative frame 4 positioning ribs and a square tube-shaped portion formed in the circumferential direction of the human detection sensor holder, and the positioning rib of the human detection sensor decorative frame is the square tube of the human detection sensor holder. The positioning is performed by contacting each side surface of the shape portion from the outside .
According to a second aspect of the present invention, in the indoor unit for an air conditioner according to the first aspect, the human detection sensor holder attaching means is a display case attached to an electrical component box .

  According to the present invention, the human detection sensor decorative frame is positioned by the positioning means so that the axial center of the opening of the human detection sensor decorative frame coincides with the axial center of the human detection sensor. The gap around the human detection sensor located in the opening of the decorative frame is uniform, and the appearance of the attachment portion of the human detection sensor is improved.

It is a disassembled perspective view of a part of the indoor unit of the air conditioner of the present invention. It is a perspective view of a person detection sensor board | substrate, a person detection sensor holder, and a person detection sensor decorative frame. It is a perspective view of description which attaches a human detection sensor holder to the human detection sensor attachment part of a display case. It is the perspective view which attached the human detection sensor holder to the human detection sensor attachment part of the display case. It is a perspective view of description which attaches a display case to the display case attachment part of an electrical component box. It is the perspective view which attached the indicator case to the indicator case attachment part of an electrical component box. It is the perspective view which covered the front panel frame on the internal mechanism part of an outdoor unit. It is a perspective view before putting a front panel frame on the internal mechanism part of an outdoor unit.

  The principal part of the indoor unit of the air conditioner of the 1st Example of this invention is shown in FIG. Reference numeral 10 denotes a front panel assembly, which is provided with a maintenance lid 11 that is opened during connection work of a power cord and the like, and is provided with a light-transmitting light receiving / display unit 12, a square human detection sensor mounting hole 13, a diffuser / A wind direction plate arrangement hole 14 and the like are formed. The light receiving / display unit 12, the human detection sensor mounting hole 13, and the diffuser / wind direction plate arrangement hole 14 are formed so as to face obliquely downward on the front surface of the front panel set 10.

  An electrical component box 20 includes an electrical component box main body 21 in which electrical components (not shown) are accommodated, a power cable lead hole 22, a power cable lead hole 23, a display case mounting portion 24, and the like. The tip of the power cable drawn from the power cable lead-in hole 22 and inserted through the inside through the power cable lead-out hole 23 is connected to a terminal block (not shown) of the electrical component box main body 21. An upper claw 24 a and a lower claw 24 b are formed on the display case attaching portion 24.

  Reference numeral 30 denotes a display case, in which an operation display board attachment portion 31 with a light receiving portion and a human detection sensor attachment portion 32 as human detection sensor sensor attachment means are formed. In the operation display board mounting portion 31 with the light receiving portion, three openings 31a from which the light emitting elements are exposed and one opening 31b from which the light receiving elements are exposed are formed side by side. , 31d are formed. Further, the human detection sensor mounting portion 32 has engagement holes 32a on both sides and an opening 32b in the center.

  Reference numeral 40 denotes an operation display board with a light receiving part incorporated in the inside (rear side) of the operation display board attaching part 31 with a light receiving part of the display case 30, and optical components such as three light emitting elements 41a and one light receiving element 41b. Are attached side by side, and one connector 42 of a cord 44 to which connectors 42 and 43 are attached at both ends is attached.

  Reference numeral 50 denotes a human detection sensor substrate housed in the human detection sensor mounting portion 32 of the display case 30. A round human detection sensor 51 is mounted at the center of the front surface, and connectors 52 and 53 are mounted at both ends. One connector 52 of the cord 54 is attached.

  Reference numeral 60 denotes a square cylindrical human detection sensor holder in which a round opening 61 is formed at the center of the bottom surface, and the human detection sensor 51 protrudes from the opening 61 when the human detection sensor substrate 50 is fitted inside. It has become.

  Reference numeral 70 denotes a human detection sensor decorative frame in which a round opening 71 is formed at the center. The human detection sensor decorative frame 70 has an action of closing the periphery of the human detection sensor mounting hole 13 by being inserted from the outside of the human detection sensor mounting hole 13 of the front panel set 10. Do.

  FIG. 2 shows details of the human detection sensor substrate 50, the human detection sensor holder 60, and the human detection sensor decorative frame 70. The human detection sensor holder 60 is formed with stoppers 62 at which the four corners of the human detection sensor substrate 50 come into contact with the four corners of the inner bottom surface of the opening 61. Claws 63 that engage with the engagement holes 32a of the human detection sensor mounting portion 32 of the display case 30 are formed at two positions on both sides of the human detection sensor holder 60 that are 180 degrees apart.

  In addition to the opening 71 from which the head of the human detection sensor 51 protrudes, the human detection sensor decorative frame 70 has a rectangular peripheral flange (flange) that comes into contact with the peripheral edge of the human detection sensor mounting hole 13 of the front panel set 10 from the outside. 72 and two positions on both sides of the inner side of the peripheral rib 72 that are 180 degrees apart, are slightly spaced from the peripheral rib 72 (spacing slightly wider than the thickness of the peripheral edge of the human detection sensor mounting hole 13 of the front panel set 10). And four positioning ribs 74 formed so as to extend in the back direction on the side opposite to the peripheral flange 72 in order to press contact with the four outer peripheral surfaces of the human detection sensor holder 60 from the outside, Is provided.

  Next, assembly will be described. First, the human detection sensor substrate 50 is fitted into the human detection sensor holder 60 so that the human detection sensor 51 protrudes from the opening 61, and the four corners of the human detection sensor substrate 50 are connected to the human detection sensor holder 60. Press against the stopper 62. As a result, the human detection sensor substrate 50 is accommodated in the human detection sensor holder 60 and the state shown in FIG. 3 is obtained, and the axis of the human detection sensor 51 coincides with the axis of the human detection sensor holder 60. .

  Next, the human detection sensor holder 60 in which the human detection sensor substrate 50 is housed in this way is inserted into the human detection sensor mounting portion 32 of the display case 30 from the front of the human detection sensor mounting portion 32, as shown in FIG. Fit as shown in. At this time, the cord 54 drawn out from the human detection sensor substrate 50 is pulled out from the opening 32b of the human detection sensor mounting portion 32 of the display case 30, and the claws 63 on both sides of the human detection sensor holder 60 are detected by humans. The sensor mounting portion 32 is engaged with the engagement holes 32a on both sides. Thereby, the human detection sensor holder 60 is assembled to the human detection sensor mounting portion 32 as shown in FIG. At this time, the attachment surface (front surface) of the human detection sensor substrate 50 of the human detection sensor substrate 50 has four corners pressed against the stopper 62 of the human detection sensor holder 60, and the rear surface of the human detection sensor substrate 50 is Since it is pressed against the edge around the opening 32b of the detection sensor mounting portion 32, there is no backlash.

  Next, after the human detection sensor substrate 50 and the human detection sensor holder 60 are incorporated into the human detection sensor mounting portion 32 of the display case 30, on the back side of the operation display substrate mounting portion 31 with the light receiving portion of the display case 30, The operation display board 40 with the light receiving part is fitted so that the light emitting element 41a is exposed from the opening 31a and the light receiving element 41b is exposed from the opening 31b.

  Next, the display case 30 in which the operation display board 40 with the light receiving part, the human detection sensor board 50 and the human detection sensor holder 60 are incorporated is attached to the display case attaching part 24 of the electrical component box 20. At this time, as shown in FIG. 5, the claw 31 d of the human detection sensor mounting portion 32 of the operation display board mounting portion 31 with the light receiving portion of the display case 30 is replaced with the upper claw of the display case mounting portion 24 of the electrical component box 20. The claw 31c of the human detection sensor mounting portion 32 is fitted into the lower claw 24b. Thereby, as shown in FIG. 6, the human detection sensor holder 60 is incorporated into the electrical component box 20. In the present embodiment, the human detection sensor holder 60 is incorporated in the electrical component box 20 which is a part of the main body 120 (see FIG. 8) as described above, but the main body 120 is a front panel in a portion constituting the indoor unit. The detection sensor holder 60 may be incorporated into the main body 120 other than the electrical component box 20 except for the set 10.

  Next, the human detection sensor decorative frame 70 is pushed in from the front side to the inner side of the human detection sensor mounting hole 13 of the front panel set 10 with the positioning rib 74 as the head. As a result, the claw 73 of the human detection sensor decorative frame 70 is pushed by the peripheral edge of the human detection sensor mounting hole 13 and bent slightly inward to escape, and when further pushed, the claw 73 comes off from the inner edge of the human detection sensor 13. As a result, the peripheral edge portion of the human detection sensor mounting hole 13 is sandwiched between the peripheral collar 72 and the claw 73 of the human detection sensor decorative frame 70 with play. Therefore, the human detection sensor decorative frame 70 is attached to the peripheral portion of the human detection sensor mounting hole 13 with a slight play in the vertical and horizontal directions.

  Next, when the entire front panel set 20 to which the human detection sensor decorative frame 70 is attached is covered from the upper surface to a part in which the electrical component box 20, the heat exchanger, the piping, and others are incorporated, the human detection sensor 51 becomes human. The detection sensor protrudes from the opening 71 of the decorative frame 70 to the outside. At this time, since the human detection sensor decorative frame 70 and the human detection sensor holder 60 are aligned with each other in the direction shown in FIG. 2, the four positioning ribs 74 of the human detection sensor decorative frame 70 are arranged around the human detection sensor holder 60. The human detection sensor decorative frame 70 is positioned so that the axis of the opening 71 coincides with the axis of the human detection sensor 51. Therefore, the gap (not shown) around the human detection sensor 51 in the opening 71 becomes uniform, and the appearance is improved. As shown in FIG. 7, the periphery of the human detection sensor 51 is decorated with a human detection sensor decorative frame 70. The light emitting element 41 a exposed from the opening 31 a of the operation display substrate mounting portion 31 with the light receiving portion of the display case 30 and the light receiving element 41 b exposed from the opening 31 b are the light-transmitting light receiving / displaying portion 12 of the front panel set 10. Located on the back of the.

  FIG. 8 shows a mechanism immediately before the front panel set 10 is covered. Reference numeral 80 denotes a wind direction plate motor, 90 denotes a diffuser motor, 100 denotes a wind direction plate, and 110 denotes a diffuser. As described above, the human detection sensor mounting portion 32 of the display case 30 is disposed in the empty space on the right side of the motor 80. In addition, in the indoor unit of the model which does not provide the human detection sensor 51, the display unit case 30 in which the human detection sensor attachment portion 32 is not formed is attached. Therefore, in the indoor unit to which the human detection sensor 51 is not attached, it is not necessary to provide the human detection sensor attachment hole 13 in the front panel set 10.

  As described above, the indoor unit according to the present embodiment is configured such that the human detection sensor mounting portion 32 is provided integrally with the operation display board mounting portion 31 with the light receiving portion of the display case 30. Changes to the configuration of the indoor unit to which no human detection sensor is attached are that a display case 30 provided with a human detection sensor attachment portion 32 is newly manufactured and a human detection sensor attachment hole 13 is newly provided in the front panel set 10. It is only necessary to provide it. Therefore, in the present embodiment, the configuration of the indoor unit (the operation display board 40 with the light receiving unit and the display unit case mounting unit 24) without the human detection sensor can be effectively used, and the manufacturing cost can be reduced. .

  Further, the positioning rib 74 of the human detection sensor decorative frame 70 causes the axis of the opening 71 of the human detection sensor decorative frame 70 to coincide with the axial center of the human detection sensor 51 protruding from the front surface of the human detection sensor holder 60. Since the positioning is performed, the gap around the human detection sensor 51 located in the opening 71 of the human detection sensor decorative frame 70 is uniform, and the appearance of the mounting portion of the human detection sensor is improved.

10: Front panel assembly, 11: Maintenance lid, 12: Light receiving / display unit, 13: Human detection sensor mounting hole, 14: Wind direction plate / diffuser placement hole, 20: Electrical component box, 21: Electrical component box body, 22: Cable Insertion hole, 23: Cable lead-out hole, 24: Display case mounting part, 24a: Upper claw, 24b: Lower claw 30: Display case, 31: Operation display board mounting part with light receiving part, 31a, 31b: Opening, 31c, 31d: Claws, 32: Human detection sensor mounting part, 32a: Engagement hole, 32b: Opening 40: Operation display board with light receiving part, 41a: Light emitting element, 41b: Light receiving element, 42, 43: Connector, 44: Code 50: Human detection sensor substrate, 51: Human detection sensor, 52, 53: Connector, 54: Code 60: Human detection sensor holder, 61: Opening, 62: Stopper, 63: Claw 70: Human detection sensor粧枠, 71: opening, 72: peripheral flange, 73: pawl, 74: positioning rib 80: wind direction plate motor 90: diffuser motor 100: airflow direction plate 110: diffuser 120: body

Claims (2)

In an indoor unit of an air conditioner that is composed of a main body and a front panel set and has a human detection sensor attached so as to be exposed from a human detection sensor mounting hole formed in the front panel set.
A human detection sensor substrate to which the human detection sensor is attached, a cylindrical human detection sensor holder in which the human detection sensor substrate is fitted and the human detection sensor protrudes from a bottom surface, and the human detection sensor holder is attached to the main body The human detection sensor holder mounting means and an opening through which the human detection sensor projects in the center are formed, and the human detection sensor mounting hole of the front panel set is played from the outside in a direction perpendicular to the axis of the human detection sensor mounting hole. With a human detection sensor decorative frame inserted and attached with
The human detection sensor decorative frame is positioned by positioning means so that the axial center of the opening of the human detection sensor decorative frame coincides with the axial center of the human detection sensor ,
The positioning means includes four positioning ribs formed so as to extend from the human detection sensor decorative frame in the depth direction of the human detection sensor decorative frame, and a rectangular tube shape formed in the circumferential direction of the human detection sensor holder. And the positioning rib of the human detection sensor decorative frame is positioned by abutting from the outside on each side surface of the rectangular tube-shaped portion of the human detection sensor holder. Air conditioner indoor unit. In the indoor unit of the air conditioner according to claim 1,
The indoor unit of an air conditioner, wherein the human detection sensor holder attaching means is a display case attached to an electrical component box .

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