JPS5930820Y2 - Two-room switching power supply box for air conditioner - Google Patents

Description

[Detailed description of the invention] The present invention relates to an improvement of a two-room switching power supply box in a multi-room air conditioner that is equipped with one outdoor unit and can switch the air conditioning of only one of two rooms. This product provides a power supply box that can be easily manufactured and assembled, installed, and provided with after-sales service.

Hereinafter, the present invention will be described with reference to the accompanying drawings showing one embodiment thereof.

The installation of a multi-room air conditioner generally consists of an outdoor unit (e) of a separate type air conditioner and corresponding indoor units (a, l) installed in rooms A and B, as shown in Figure 1.
), refrigerant connection pipes c and d that connect them, and connection wires f, g, and h that connect the two-room switching power supply box 1 and the indoor/outdoor unit.

The two-chamber switching power supply box 1 includes a body plate 2 constituting a part of the outer shell, wiring draw-out notches 3 provided on the left and right sides of the body plate 2 as shown in FIG. Screw holes 4, 4 are provided near the parts 3, 3.

The notches 3, 3 and the threaded holes 4, 4 have the same shape and positional relationship, and the wiring protection bushing 5 and the notch 3
, 3 are formed so that a blind plate 6 for covering them can be attached in either the left or right direction.

Therefore, the wiring can be drawn out to either the left or right.

Further, as shown in FIG. 3, the bottom plate 7 spot-welded to the body plate 2 is provided with a protrusion 8 that protrudes inside the power supply box 1, and a space 9 is formed by the protrusion 8.

This space 9 prevents the tips of the mounting screws 11 of electrical components, such as the terminal plate 10, from protruding beyond the outer periphery of the power supply box 1.

By providing this space 9, when the power supply box 1 is mounted on a wall surface, etc., it is not only possible to mount it flush with the wall surface, but also to form a part of the outer shell of the power supply box 1 and also serve as an electrical component mounting plate. Can be done.

On the protrusion 8 of the bottom plate 7, a relay mounting bracket 13 for mounting a relay 12 for switching between chambers A and B at an angle of a predetermined angle α with respect to the bottom plate 7 is attached to the bottom plate 7 by welding or screwing. It is installed at an angle.

Furthermore, a resilient metal relay fixture 14 is attached to the relay mounting bracket 13 with screws 15.

The relay 12 is held by locking portions 16 provided at both ends of the relay fixture 14.

In addition, since the relay 12 is inclined, when inserting the lead wire crimp terminal 17 into the terminal of the relay 12, the relay 12
2 terminal numbers are easy to read and wiring work can be done easily.

Furthermore, when the relay 12 needs to be replaced, it can be easily removed by opening the locking portion 16 of the relay fixture 14 using a common flathead screwdriver 18.

A locking piece 19 is provided on the body plate 2 and is used to lock a lid 20 for covering the power supply box 1.

Hook the lid 20 onto the locking piece 19 and attach it to the power supply box 1 with the screw 21.
It is fixed to the body plate 2 of.

Reference numeral 21 denotes a resin protective tube for protecting the wirings f, g, and h and for making them look good.

23 is a power cord for supplying electricity to the indoor/outdoor units) a, l), and e, and is connected to the terminal 10 in the power supply box 1.

25 connects the terminal 10 in the power box 1 and the operation power to 0.
An operation switch for switching between N-OFF and indoor unit (a) or b of either room 2 (room A, room B), 24 is a connection cord for connecting this operation switch, and the operation switch 25 is used for easy use. Can be placed in a good location.

As is clear from the above embodiments, the two-chamber switching power supply box for a multi-chamber air conditioner according to the present invention allows electrical components to be easily attached by protruding a portion of the outer shell into the power supply box. , there is no need for the power supply box to have a double structure of a plate for mounting electrical components and a bottom plate that makes up the outer shell, and the structure is simple and has fewer parts, reducing man-hours and making it lighter and smaller. By tilting the mounting bracket, the power supply box can be made thinner, making it easier to attach and detach the relay and assemble the wiring.Furthermore, cutouts are provided on the left and right sides of the body plate, making it easy to install protective bushings and blind plates. can be installed and removed in any position, and the wiring can be routed from either the left or right direction, and the installation location of the power supply box can be freely determined without being affected by the direction of the wiring, which has great practical effects. It is what it is.

[Brief explanation of drawings]

FIG. 1 is a plan view showing the installed state of a multi-room air conditioner equipped with a two-room switching power supply box according to an embodiment of the present invention;
The figure is a perspective view of the two-room switching power supply box, and Figure 3 is A- in Figure 2.
FIG. 4 is a sectional view taken along line A' and a perspective view showing the main parts of the power supply box. 1...2-chamber switching power supply box, 2...body board,
3, 3... Notch for drawing out wiring, 4, 4...
...Threaded hole, 7...Bottom plate, 8...Protrusion, 12...Relay, 13...Relay mounting bracket, 14... ...Relay fixture.

Claims (1)

[Scope of utility model registration request] The power supply box for switching between two rooms in a multi-room air conditioner is equipped with a protrusion that protrudes inward, and the bottom plate of the power supply box, which forms part of the outer shell of the power supply box, allows electrical components to be attached. A two-room switch for air conditioners with a relay mounting bracket for attaching the relay at an angle, and a cutout for wiring that allows wiring to be wired either left or right on the left or right side of the body of the power supply box, or in either the left or right direction. power box.