JPH0141064Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention is a ceiling-suspended air conditioner, in particular, a heat exchanger, a fan, and an electric motor are installed inside a casing, and a rear An electrical equipment box whose sides can be opened and whose width in the front and rear directions is narrow is installed inside the electrical equipment box, and the electrical equipment box has a length in the longitudinal direction that is longer than the width dimension of the box, and which has a width in the longitudinal direction. This invention relates to a ceiling-suspended air conditioner in which a vertically elongated electromagnetic switch having a plurality of terminals is attached to the end face.

(Conventional technology) The conventional ceiling-suspended air conditioner was developed in 1980-80620.
As stated in the publication, smaller and thinner
There is a trend towards lighter weight.

That is, as shown in FIG. 6, this conventional example is a ceiling-suspended air conditioner, and the casing 1 is thin, and the inside of the casing 1A has an air conditioner that opens at the front of the casing 1A. A heat exchanger 2A is provided on the outlet 12A side, and a fan 3A is provided behind the heat exchanger 2A.

However, the casing 1A of the air conditioner
not only makes its thickness as thin as possible;
The width dimension in the front and back direction is also shortened to achieve a smaller and thinner overall design.
When installing the electrical box 7A containing the electromagnetic switch 8A along the back of the casing 1A,
The width of the box 7A in the front and back direction is narrow, so that the box 7A can be installed in a limited space behind the fan 3A.

By the way, conventionally, when an electromagnetic switch 8A having a terminal 9A at one end in the longitudinal direction is installed inside the electrical equipment box 7A, the electromagnetic switch 8A is installed so that the terminal 9A is connected to the box 7A due to the necessity of wiring work. The electromagnetic switch 8A is fixed so as to face the opening/closing side (surface A where the opening/closing lid is attached), and as a result, the width dimension of the electrical box 7A is limited by the longitudinal length of the electromagnetic switch 8A. There was a problem where L could not be made smaller.

To solve this problem, the electromagnetic switch 8A
The longitudinal direction of the electromagnetic switch 8A may be aligned with the longitudinal direction of the box 7A, so-called horizontal mounting.
A problem arises in that it becomes difficult to connect or disconnect each cord to each terminal 9A.

For this reason, when the electromagnetic switch 8A is installed horizontally, the wiring work of connecting (or disconnecting) each cord to the terminal 9A of the electromagnetic switch 8A is performed when the electromagnetic switch 8A is installed next to the electrical equipment box 7A. As a result, it becomes necessary for the worker to hold the electromagnetic switch 8A in place while fixing it in place, which causes many difficulties when carried out by a single worker. That's what happens.

The present invention allows the electromagnetic switch to be easily and stably temporarily supported in the electrical equipment box with the terminals of the electromagnetic switch exposed outside the opening/closing side of the electrical equipment box, Wiring connection to or removal from the terminal of the electromagnetic switch can be easily performed while the electromagnetic switch is supported by the electrical equipment box without having to be fixed by hand, and the electromagnetic switch The device can be easily attached to the electrical equipment box.

(Means for Solving the Problems) Accordingly, the present invention incorporates a heat exchanger 2, a fan 3, and an electric motor 4 inside a casing 1 as shown in FIGS. An electrical equipment box 7 whose back side can be opened and whose width in the longitudinal direction is narrow is installed on the back side, and the electrical equipment box 7 has a longitudinal length that is equal to the width dimension of the box 7. In a ceiling-suspended air conditioner in which a vertically elongated electromagnetic switch 8 is installed which is longer and has a plurality of terminals 8a on one end surface in the longitudinal direction, the ceiling wall 7a of the electrical equipment box 7
an engaging portion 70 having a pair of cuts a extending in the length direction of the electrical equipment box 7 and a recessed portion 71 recessed into the top wall 7a;
A holding piece receiving hole 7c is formed in the upper part of the front wall 7b of the electrical equipment box 7, and a mounting piece 7e having a screw hole 7f in the lower part is formed.
a fixing piece 81 that fixes the other end surface in the length direction of the electromagnetic switch 8, and this fixing piece 81
The first receiving piece 85 bends from one side in the orthogonal direction.
and a second receiving piece 86 extending in a bent shape from the lower side of the first receiving piece 85. At the upper end of the fixing piece 81 on this mounting plate 9, the engaging portion is formed. An insertion piece 80 that can be inserted into the cut a of 70, and a holding piece 83 that engages with the receiving hole 7c at the upper end of the first receiving piece 85,
A connecting piece 90 having a screw hole 91 that overlaps with the mounting piece 7e is provided on each end side of the second receiving piece 86, and one end surface of the electromagnetic switch 8 provided with a plurality of terminals 8a is connected to the second receiving piece 86. This makes it possible to hold the casing 1 so that it protrudes outward from the back surface of the casing 1.

(Function) With the above configuration, when connecting wiring such as a power cord, an operation cord, or a communication cord to the terminal 8a located on one end surface in the longitudinal direction of the electromagnetic switch 8, the insertion piece 80 Since it is located perpendicular to the holding piece 83 and the coupling piece 90, the insertion piece 8 of the electromagnetic switch 8 can be attached to the engaging portion 70 provided on the top wall 7a of the electrical equipment box 7.
0, one end surface in the longitudinal direction of the electromagnetic switch 8 is rotated horizontally by 90 degrees, and the electromagnetic switch 8 is stably attached to the electrical equipment box 7 in a state where it protrudes outward from the open side surface of the electrical equipment box 7. It can be easily temporarily supported, and wiring can be connected to the terminal 8a of the electromagnetic switch 8 in this temporarily supported state.
Therefore, when the wiring is connected to the terminal 8a by tightening a terminal screw, etc., the torque acting on the screw is borne by the electrical equipment box 7 via the engaging portion 70, so that the wiring The connection to the terminal 8a of the electromagnetic switch 8 can be easily and reliably made by one person.

When the electromagnetic switch 8 is housed in the electrical equipment box 7, the holding piece 83 provided at the upper end of the first receiving piece 85 of the mounting plate 9 to which the electromagnetic switch 8 is fixed is The upper part of the mounting plate 9 is temporarily held by engaging with the receiving hole 7c provided in the box 7, and then the connecting piece 90 provided on the end side of the second receiving piece 86 is connected to the connecting piece 90 of the box 7. By overlapping the mounting pieces 7e, the second receiving piece 86 is supported by the mounting piece 7e and fixed with screws.
It is possible to easily install the electromagnetic switch 8 without holding it by hand.

(Example) The air conditioner shown in Fig. 5 is a ceiling-suspended type, and 1 is a casing.The casing 1 is approximately a rectangular parallelepiped, and its thickness and longitudinal width are made as small as possible. The overall shape is small and thin.

Further, an air suction port 11 having a predetermined width and extending over the entire length of the casing 1 in the longitudinal direction is provided on the bottom surface of the casing 1 on the back side thereof;
Air blow-off ports 12 are provided at the front, side, and bottom portions of the casing 1.

Further, a heat exchanger 2 having a length approximately equal to the length in the longitudinal direction of the casing 1 is installed on the front side of the casing 1, and a heat exchanger 2 having a length approximately equal to the length in the longitudinal direction of the casing 1 is installed, and on the back side,
A partition wall 1 is provided along the entire length of the casing 1 in the longitudinal direction.
3, and a fan 3 and an electric motor 4 are arranged in a row on this partition wall 13.

Thus, due to the rotational drive of the fan 3, air flows from the air suction port 11 into the casing 1.
The air is sucked in in the direction shown by arrow A, passes through the heat exchanger 2, and then is blown out from the air outlet 12 in the direction shown by arrow B.

Further, on the back side of the casing 1, that is, on the back side where the fan 3 and electric motor 4 are disposed, there is installed an electrical equipment box 7 for housing an electromagnetic switch 8, which will be described later.

The electrical equipment box 7 is designed to reduce the width of the casing 1 in the front-rear direction as much as possible.
It has a longer width in the lateral direction and a narrower width in the front and rear directions. On the other hand, the electrical equipment box 7 is equipped with an electromagnetic switch 8 as shown in FIG. The electromagnetic switch 8 is longer in its longitudinal direction than the width L in the front-rear direction of the electrical equipment box 7, and has a plurality of terminals 8a on one end surface in the longitudinal direction for connecting wiring from each electrical device. keeping.

Further, the electrical equipment box 7 has a box-like shape with an openable back side, and an opening/closing lid (not shown) is provided on this open side.

As shown in FIGS. 1 and 2, the electromagnetic switch 8 is integrally connected with a mounting plate 9, and as shown in FIG. The electromagnetic switch 8 can be placed horizontally and stored and fixed in the electrical equipment box 7, or as shown in FIG. This makes it possible to provide temporary support.

This will be explained in detail below.

In the electrical equipment box 7, a pair of short cuts a extending in the longitudinal direction of the box 7 are formed in parallel on the top wall 7a, which is a part of the wall, as shown in FIGS. 1, 2, and 4. A recessed portion 71 is formed by pushing the cut portion a into the box 7, and a recessed portion 71 is formed in the mounting plate 9 of the electromagnetic switch 8 between the recessed portion 71 and the ceiling wall 7a. , forming an engaging portion 70 that receives an insertion piece 80 to be described later.

Further, a holding piece 8, which will be described later, is provided on the mounting plate 9 above the middle part of the front wall 7b of the electrical equipment box 7.
A rectangular receiving hole 7c is formed to receive the 3.

Further, a U-shaped cut with an open bottom is made below the receiving hole 7c of the electrical equipment box 7, and this cut portion is bent inward into the box 7 into an L-shape. A mounting piece 7e is formed parallel to the front wall 7b. This mounting piece 7e has a screw hole 7f for fixing the electromagnetic switch 8 in the storage position.

On the other hand, the mounting plate 9 of the electromagnetic switch 8 is connected to the terminal 8a of the electromagnetic switch 8 as shown in FIGS.
a fixing piece 81 that fixes the electromagnetic switch 8 to the mounting plate 9 by coming into contact with a surface facing the terminal surface having a
A first extending in a bent shape from one side of the fixed piece 81 in the orthogonal direction and facing one side of the electromagnetic switch 8.
a receiving piece 85; and a second receiving piece 8 extending in a bent shape from the lower side of the receiving piece 85 and facing the lower surface of the electromagnetic switch 8.
It consists of 6.

A screw hole 87 for screwing the electromagnetic switch 8 is formed in the fixing piece 81, and the upper end is bent and inserted into the engaging part 70 of the ceiling wall 7a. The insertion piece 80 is formed.

Further, at the upper end of the first receiving piece 85, the substantially L-shaped holding piece 8 is inserted into the receiving hole 7c of the front wall 7b and engages with the back surface of the upper peripheral edge of the receiving hole 7c.
There are 3.

Furthermore, a connecting piece 90 that overlaps with the mounting piece 7e of the front wall 7b is lowered from an end side of the second receiving piece 86 opposite to the side that is connected to the first receiving piece 85. The coupling piece 90 also has a screw hole 91 corresponding to the screw hole 7f of the mounting piece 7e.
is opened.

The insertion piece 80 is provided at a position perpendicular to the holding piece 83 and the coupling piece 90.

Next, the work of connecting each electric cord to the electromagnetic switch 8 and the work of housing the electromagnetic switch 8 in the electrical equipment box 7 will be explained based on FIGS. 1 and 2.

The electromagnetic switch 8 is screwed in advance to the fixing piece 81 of the mounting plate 9 via a stop plate 92 (hereinafter, the electromagnetic switch including the mounting plate 9).

When connecting each electric cord to the terminal 8a of the electromagnetic switch 8, as shown in FIG. 70, and the electromagnetic switch 8 is held in the electrical equipment box 7 by the engaging portion 70.

Then, the terminal surface of the electromagnetic switch 8 is exposed on the open side outer surface of the box 7, and since the electromagnetic switch 8 is held in the box 7, each electrical cord is connected to the terminal 8a. When connecting the electromagnetic switch 8, the electromagnetic switch 8 does not rotate even if a terminal screw or the like is rotated using a screwdriver or the like and rotational torque is applied to the electromagnetic switch 8. As a result, the electromagnetic switch 8 does not rotate. Switch 8
This allows the connection work to be easily performed without having to press down with your hands.

Further, when storing the electromagnetic switch 8 in the box 7, as shown in FIG. 2, the holding piece 83 of the electromagnetic switch 8 is inserted into the receiving hole 7c of the front wall 7b. While the holding piece 83 is engaged with the back surface of the upper peripheral edge of the receiving hole 7c, the coupling piece 90 of the electromagnetic switch 8 is engaged with the mounting piece 7e.
and insert screws (not shown) into each of the screw holes 7f and 91 to connect the connecting piece 90 and the mounting piece 7.
The electromagnetic switch 8 is fixed to the box 7.

In this way, the electromagnetic switch 8 can be housed in the box 7 with the direction perpendicular to its length aligned with the narrow longitudinal direction of the box 7, and the electromagnetic switch 8 can be attached. The holding piece 83 of the mounting plate 9 is supported by the receiving hole 7c, and the second receiving piece 86 of the mounting plate 9 is supported by the receiving hole 7c.
The mounting plate 9 can be attached to the box 7 while being supported by the mounting piece 7e.

In the above embodiment, the engaging portion 70 is provided on the top wall 7a of the box 7, but the engaging portion 70 is provided on the front wall 7b.
It may also be provided at any other location on the wall of the box 7. Further, the engaging portion 70 is formed in a concave shape, and the electromagnetic switch 8 is provided with an insertion piece 80 that protrudes into the engaging portion 70. However, the insertion piece 80 is formed on the box 7 side. The electromagnetic switch 8
A recessed portion may be formed on the side.

Further, in the embodiment, when the electromagnetic switch 8 is temporarily supported by the electrical equipment box 7,
Only the upper side of the electromagnetic switch 8 is connected to the box 7.
Although the electromagnetic switch 8 is supported by the wall, the lower end of the electromagnetic switch 8 may also be supported by the box 7 in the same manner.

(Effect of the invention) As described above, the present invention
The electromagnetic switch 8, which has a plurality of terminals 8a at one end in the longitudinal direction, is placed horizontally along the longitudinal direction of the box 7, and the terminal connection work position of the electromagnetic switch 8 with respect to the box 7 is set to the electromagnetic switch 8. Rotate the terminal surface of switch 8 by 90 degrees horizontally,
The electromagnetic switch 8 can be placed in a position exposed to the open outer surface of the box 7, and the electromagnetic switch 8 can be easily and stably temporarily supported on the box 7 in the working position. Work such as connecting the electric cord to the terminal 8a of the electromagnetic switch 8 can be performed very easily.Furthermore, when the electromagnetic switch 8 is stored in the electrical equipment box 7, the electromagnetic switch 8 can be The attached holding piece 83 of the mounting plate 9 is supported by the receiving hole 7c, and the second holding piece 83 of the mounting plate 9 is supported by the receiving hole 7c.
Since the receiving piece 86 can be supported by the mounting piece 7e, the mounting plate 9 can be easily attached to the mounting plate 9 without having to hold it by hand.
and the box 7 can be screwed together. Therefore, the electromagnetic switch 8 is connected to the box 7.
It can be easily installed.

[Brief explanation of the drawing]

Figures 1 to 5 are drawings showing an embodiment of the present invention, Figure 1 is an explanatory diagram showing a state in which an electromagnetic switch is temporarily supported in an electrical equipment box, and Figure 2 is an explanatory diagram showing a state where the electromagnetic switch is housed in the box. Explanatory diagram showing the state in which
The figure is an enlarged perspective view of a mounting plate provided integrally with the electromagnetic switch, Fig. 4 is an enlarged partial front view of the electromagnetic switch, Fig. 5 is an overall view of the air conditioner, and Fig. 6 is an explanation of a conventional example. It is a diagram. 1...Casing, 2...Heat exchanger, 3...Fan, 4...Electric motor, 7...Electrical box, 7a
...Ceiling wall, 7b...Front wall, 7c...Reception hole, 7e
...Mounting piece, 7f...screw hole, 70...engaging part,
71... recessed part, a... cut, 8... electromagnetic switch, 8a... terminal, 80... insertion piece, 81... fixed piece, 85... first receiving piece, 86... second receiving piece , 9
...Mounting plate, 90...Joining piece.

Claims (1)

[Scope of utility model registration request] A heat exchanger 2, a fan 3, and an electric motor 4 are housed inside a thin and horizontally elongated casing 1, and the back side of the casing 1 is open and the back side is open. An electrical equipment box 7 having a narrow width dimension is installed inside, and the electrical equipment box 7 has a longitudinal length longer than the width dimension of the box 7, and has a plurality of terminals 8a on one end surface in the longitudinal direction. In a ceiling-suspended air conditioner in which a vertically elongated electromagnetic switch 8 is attached, the electrical equipment box 7 is mounted on the ceiling wall 7a of the electrical equipment box 7.
An engaging part 70 having a pair of cuts a extending in the length direction and a recessed part 71 recessed into the top wall 7a is formed on the upper part of the front wall 7b of the electrical equipment box 7, A holding piece receiving hole 7c is formed, and a mounting piece 7e having a screw hole 7f at the lower part is formed, and the other end surface in the length direction of the electromagnetic switch 8 is fixed to a width shorter than the width of the electrical equipment box 7. A mounting plate 9 consisting of a piece 81, a first receiving piece 85 bent from one side of the fixed piece 81 in a perpendicular direction, and a second receiving piece 86 extending in a bent shape from the lower side of the first receiving piece 85. On the other hand, an insertion piece 80 that can be inserted into the cut a of the engaging part 70 is attached to the upper end of the fixing piece 81 of the mounting plate 9, and an insertion piece 80 is inserted to the upper end of the first receiving piece 85. A holding piece 83 that engages with the receiving hole 7c is attached to the end side of the second receiving piece 86,
A coupling piece 90 having a screw hole 91 that overlaps with the mounting piece 7e is provided, and the electromagnetic switch 8 is connected to the electromagnetic switch 8.
A ceiling-suspended air conditioner characterized in that one end surface provided with a plurality of terminals 8a can be held so as to protrude outward from the back surface of the casing 1.