JP4701819B2 - Air conditioner indoor unit - Google Patents

Description

  The present invention relates to an indoor unit of an air conditioner incorporating a power supply box.

  Conventionally, an indoor unit of this type of air conditioner has housed a box called an electrical box containing electrical control parts in the main body, and the electrical box has an open surface for accommodating a terminal block and the like. And an inner lid arranged in such a manner that the terminal block and the like are exposed on the surface, and an outer lid that covers the inner and outer connecting wires and is fixed to the electrical box (for example, see Patent Document 1). Here, the internal / external connection electric wire is an electric wire for connecting the indoor unit of the air conditioner and the electrical components of the outdoor unit.

  FIG. 6 shows a front view in which an inner lid is attached to the conventional electrical box described in Patent Document 1. In FIG. As shown in FIG. 6, the power supply box 4 includes a control board 12, a terminal block 11, an internal / external connection electric wire 13 connected to the terminal block, and a terminal block opening 42 that exposes a part of the terminal block 11 to the surface. And an inner lid 41 that covers the open surface of the electrical box 3. The inner lid 41 is locked to the electrical equipment box 4 by the locking claws 43 and 44.

An outer lid (not shown) is mounted and fixed in front of the inner lid 41 by a presser claw 43 of the inner lid 41 and is fixed to the electrical box 4 by an insertion portion 46 and screws.
JP 2003-185175 A

  However, in the conventional configuration, when the terminal block for product assembly or product installation in the market is attached / detached, the intermediate power supply cover and the external power supply cover that cover the terminal block and other power supply box storage parts are removed, and the screws are further removed. It had the subject of taking time because it had to be.

  Also, in terms of maintainability of the equipment, when removing the middle power supply cover and the external power supply cover, and when attaching and detaching the terminal block, it is necessary to remove the screws and reattach the screws, which makes it time consuming to attach and remove. It was.

  The present invention solves the above-described conventional problems, and an object thereof is to provide an indoor unit of an air conditioner in which a terminal block is easily attached and detached and serviceability is improved.

In order to solve the above-mentioned conventional problems, the indoor unit of the air conditioner of the present invention is such that the terminal block for connecting the inner and outer connecting wires is positioned left and right and upper by a guide provided in the power supply box, and is movable by a movable guide. If the lower part is locked and the terminal block is slid in the vertical direction while pressing the terminal unit toward the back of the indoor unit when the terminal block is installed, the movable guide moves in the back direction of the indoor unit and moves when the terminal block is attached. The expression guide returns to the original state .

  As a result, the terminal block is fixed directly to the power supply box only by a guide without using screws, so there is no need to install and remove screws, which can be time-consuming. The locked state is released, and the terminal block can be easily attached and detached.

  The indoor unit of the air conditioner of the present invention has a simple structure and can easily attach and detach the terminal block, thereby improving the workability during installation and service of the air conditioner and shortening the time. Serviceability is improved, and it is possible to contribute to cost reduction by reducing parts such as screws and improving assembly man-hours.

A first aspect of the present invention is the terminal block for connecting the inner and outer connection wires are positioned left and right and top by a guide provided in the power supply box is engaging the lower the movable guide, the terminal block chamber during the terminal block mounting of When sliding up and down while pressing toward the back of the unit, the movable guide moves toward the back of the indoor unit, and when the terminal block is attached, the movable guide returns to its original state, which takes time and effort. There is no need to attach and remove the cable, and the power supply box can be easily released by simply pressing the lower movable guide. The terminal block can be easily attached and detached, improving serviceability and reducing costs by reducing parts. can do.

  In the second invention, in particular, the terminal block provided in the power supply box according to the first invention is slid and attached at an elevation angle along the left and right guides provided in the power supply box, so that it takes time to install and remove screws. There is no work, the terminal block can be easily attached and detached, and the cost can be reduced by improving serviceability and reducing parts.

  In the third invention, in particular, the movable guide for locking the lower part of the terminal block according to the first or second invention includes a locking portion made of a protruding rib, and the top surface of the protruding rib to the movable guide surface. The projecting ribs can be reinforced, and when the terminal block is slid, the projecting ribs and the tilting ribs are held down to move the movable guide in the back direction. It can be made easier, and cost can be reduced by improving serviceability and reducing parts.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a front view of an indoor unit of an air conditioner according to the first embodiment of the present invention, FIG. 2 is a front view of a single power supply box according to the first embodiment of the present invention, and FIG. The front view of the power supply box which accommodated the electrical component in 1st Embodiment of this is shown.

  In FIG. 1, the indoor unit of an air conditioner has a heat exchanger 2 and a blower 3 disposed on a frame 1, and a power supply box 4 for storing electrical components is provided on the right side thereof. .

  2 and 3, the terminal block 11 is disposed on the upper left side of the power supply box 4, and the control board 12 is disposed on the right side. The internal and external connection electric wires 13 connected to the terminal block 11 are corded below the terminal block 11. It is fixed by the tool 14. The internal / external connection electric wire 13 is led out of the indoor unit through the opening 15 and is connected to the electrical box of the outdoor unit.

  FIG. 4 is a perspective view of a main part of the power supply box according to the first embodiment of the present invention, and FIG. 5A is a terminal block attachment in the CC cross section of the power supply box according to the first embodiment of the present invention. The principal part enlarged view of time, (b) shows the principal part enlarged view at the time of terminal block removal.

  Next, the configuration of the power supply box will be described with reference to the drawings with reference to FIGS.

  The terminal block 11 attached to the power supply box 4 is positioned left and right by the right guide 21 and the left guide 22 in the left-right direction, and further, the terminal block 11 is provided by holding claws 23 arranged on the top surfaces of the guides 21 and 22. Is fixed so that it does not float.

  Further, the upper side of the terminal block 11 is fixed by a protrusion guide 24 and the lower side is fixed by a movable guide 25. The movable guide 25 has a configuration in which a protruding rib 32 is provided at the tip of a movable portion formed by providing an inverted U-shaped through hole 31 below the terminal block 11 mounting portion of the power supply box 4. The terminal block 11 can be securely fixed in the vertical direction in such a manner that the inner and lower end surfaces of the table 11 are engaged with each other and are sandwiched between the protrusion guide 24 and the movable guide 25.

  Further, by providing the movable guide 25 with an inclined rib 33 guided from the top surface of the protruding rib 32 at the tip, the protruding rib 32 can be reinforced, and when the terminal block 11 is stored, the terminal block 11 is placed below the mounting portion. Since the terminal block 11 is slid while being pressed against the mounting surface by the left and right holding claws 23, the movable ribs 25 and the inclined ribs 33 are pressed and the movable guide 25 is movable in the back direction. To do.

  When the terminal block 11 is securely pushed in and set, the movable guide 25 reacts to return to the state before the terminal block 11 is attached, and the tip end of the protruding rib 32 and the inner lower end surface of the terminal block 11 substantially coincide. The terminal block 11 is securely fixed in the vertical direction in such a manner that the terminal block 11 is engaged with the projection guide 24 and the movable guide 25.

  Further, when the movable guide 25 is pushed down, the protrusion rib 32 and the terminal block 11 are disengaged, and the terminal block 11 can be easily removed from the power supply box 4 when the terminal block 11 is slid down the mounting portion. .

  In addition, since the right guide 21 and the left guide 22 that are fixed in the left-right direction have a shape that matches the shape of the terminal block 11, the inner and outer connection wires 13 can be easily attached and detached, and can be attached to any side surface of the terminal block 11. Since it fits, it can be fixed securely and has a simple structure.

  Further, the mounting surface of the terminal block 11 is inclined at an elevation angle of about 20 degrees, so that the movable guide 25 can be easily slidably mounted and removed, and the internal / external connection electric wire 13 can be easily connected to the lower portion of the terminal block 11.

  As described above, in the present embodiment, the terminal block for connecting the internal and external connection wires is positioned on the left and right and the top by the guide provided on the power supply box, and the lower part is locked by the movable guide, and directly on the power supply box. By fixing, there is no need to install and remove screws, which can be time-consuming.Furthermore, the terminal block can be easily attached and detached by simply pressing the lower movable guide. Costs can be reduced by improving and reducing parts.

  Further, the protrusion guides for positioning and fixing the left and right and upper portions of the terminal block provided in the power supply box of the present embodiment may be recessed holes provided in the shape of the terminal block.

  As described above, the indoor unit of the air conditioner according to the present invention has a simple structure and can easily attach and detach the terminal block, thereby improving serviceability. It can also be applied to applications such as electric water heaters that require installation work.

The front view of the indoor unit of the air conditioner in Embodiment 1 of this invention Front view of a single power supply box according to Embodiment 1 of the present invention The front view of the power supply box which accommodated the electrical component in Embodiment 1 of this invention The principal part perspective view of the power supply box in Embodiment 1 of this invention (A) in the CC cross section of the power supply box in Embodiment 1 of this invention is a principal part enlarged view at the time of terminal block attachment (b) is a principal part enlarged view at the time of terminal block removal. Front view of a conventional electrical box with an inner lid

DESCRIPTION OF SYMBOLS 1 Base frame 2 Heat exchanger 3 Blower 4 Power supply box 11 Terminal block 12 Control board 13 Internal / external connection electric wire 14 Cord stopper 15 Opening part 21 Right guide 22 Left guide 23 Holding claw 24 Projection guide 25 Movable guide 31 Through hole 32 Projection Rib 33 Inclined rib 41 Inner lid 42 Terminal block opening 43, 44 Locking claw 45 Pressing claw (engaging part)
46 Insertion part (engagement part)
A opening B opening

Claims (3)

The terminal block for connecting the internal and external connection wires is positioned on the left and right and top by a guide provided in the power supply box, and locked at the bottom by a movable guide. The air conditioner is characterized in that the movable guide moves in the interior direction of the indoor unit when it is slid in the vertical direction while being pressed, and the movable guide returns to its original state when the terminal block is attached. Indoor unit. The indoor unit of an air conditioner according to claim 1, wherein the terminal block is slidably mounted at an elevation angle along left and right guides provided in the power supply box. The movable guide for locking the lower part of the terminal block has a locking portion made of a protruding rib, and an inclined rib guided from the top surface of the protruding rib to the movable guide surface. The indoor unit of the air conditioner described in 2.

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