JPH0413538Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] (Field of industrial application) This invention provides indoor and outdoor heat exchangers in one main body, and a compressor is installed on the bottom plate of the main body. Contains air conditioners.

(Prior Art) In a vertical window type air conditioner, all refrigeration cycle equipment is incorporated into one main body (integrated type). Specifically, as shown in FIG. 5, a bottom plate a made of sheet metal and a peripheral wall cover b are
An indoor heat exchanger d and an indoor fan e are provided on the indoor side of the main body c, and an outdoor heat exchanger f and an outdoor fan (not shown) are provided on the outdoor side. A structure is used in which a hermetic compressor h (a compressor h and a motor for driving the compressor are built in a hermetic case) is installed on the bottom plate a.

Conventionally, in installing such a window type hermetic compressor h, a smooth bottom plate a is used as shown in Fig. 5, and the legs of the hermetic compressor h (fixed capacity type) are placed on the bottom plate a. A structure is used in which i... is fixed.

However, in such a structure, because the inner bottom surface of the bottom plate a is smooth, there is no defined drainage channel, and condensation that falls on the bottom plate a and rainwater that enters into the main body c from outside (due to strong rain and wind, etc.) are sealed. It has the disadvantage that it tends to accumulate around the compressor h. Moreover, since the bottom plate a is made of metal, there is a risk of current leaking from the hermetic compressor h through the bottom plate a to the surrounding wall cover b or other equipment. There are circumstances in which hermetic compressors cannot be easily applied. In other words, in a hermetic compressor with variable capacity, the capacity is controlled by increasing or decreasing the power frequency (using an inverter), but the leakage current observed when the frequency increases or decreases flows through the bottom plate a to the peripheral wall cover b, etc. This is due to Moreover, this is due to the fact that it is difficult to insulate between the bottom plate a and the hermetic compressor h, and it is also costly (grounding, etc. must be installed).

(Problems to be solved by the invention) In other words, the insulation around the hermetic compressor h has been a problem.

This idea was developed with a focus on these problems, and the aim is to create an air conditioner with a simple structure that can prevent current leakage from the compressor due to variable capacity. Our goal is to provide the following.

[Structure of the device] (Means and effects for solving the problems) In this device, the bottom plate 2 is made of synthetic resin and has an inclined portion 2c that slopes downward toward the outdoor side at the bottom. By providing a protruding rib 12 on the top of the compressor 10 to prevent rainwater from entering from outside, the insulation performance of the bottom plate itself is improved to prevent condensation, rainwater, etc. from accumulating around the compressor 10. The area around the compressor 10 is insulated by preventing rainwater from entering by the ribs 12 and the inclined portion 2c.

(Example) This invention will be described below based on an example shown in FIGS. 1 to 4. Fig. 4 shows the entire window type air conditioner, and Fig. 1 shows its side cross section, where 1 is a main body composed of a bottom plate 2 and a peripheral wall cover 3, and 4 is a view showing the interior of the main body 1. This is a partition plate that divides the room into an inside 5 and an outside 6. An indoor heat exchanger 7 and a vertical indoor fan 8 are installed on the indoor side 5 formed at the upper part of the front part, and an outdoor heat exchanger 7 is provided on the outdoor side 6 formed across the upper and lower parts of the rear part. A vertical outdoor fan (not shown) is provided. Further, a hermetic compressor 10 with variable capacity is installed on the side of the bottom plate 2 included in the outdoor side 6. The suction and discharge parts of this hermetic compressor 10 are connected to the indoor and outdoor heat exchangers 7 and 9 via connecting piping and a four-way valve (not shown),
It constitutes a refrigeration cycle. Note that an inverter circuit (not shown) is connected to the motor section of the hermetic compressor 10, so that the capacity can be varied by changing the rotational speed due to an increase or decrease in the power frequency.

The bottom plate 2 has a structure that prevents leakage current from the hermetic compressor 10 from leaking to the surrounding area. In other words, to explain the structure around the bottom plate 2, which is the main part of this invention, the bottom plate 2
The mounting boss 2a where the hermetic compressor 10 is installed is made by molding plastic (synthetic resin material)...
..., and a mounting boss 2b for installing the fan motor 11 for the outdoor side. In other words, the entire bottom plate 2 is made of an insulator. As shown in FIG. 3, the entire bottom wall of the bottom plate 2 is sloped at an angle that descends toward the outdoor side 6. A drainage hole (not shown) is formed in the outer side 6 to prevent water from accumulating around the hermetic compressor 10. Also, on the bottom plate 2, the hermetic compressor 10
A generally triangular plate-like rib 12 is integrally provided around the mounting bosses 2a, which are the outer peripheries of the mounting bosses 2a, so as to surround the mounting bosses 2a. and,
This plate-like rib 12 is designed to act as a wall against rainwater entering from outside, and the rainwater is prevented from entering the hermetic compressor 1.
0, and insulates the area around the hermetic compressor 10 from three factors: insulation of the bottom plate itself, drainage performance, and prevention of rainwater intrusion. In addition, there are also ribs 13 around the mounting boss 2b...
is provided protrudingly, and the periphery of the outdoor fan motor 11 is also insulated.

Note that ceramic piping (non-conductive material) is interposed in the connecting piping connected to the hermetic compressor 10 to prevent leakage current from leaking into the connecting piping.

Therefore, in such an air conditioner, if the hermetic compressor 10 is operated according to the load (difference between the indoor temperature and the set temperature) using an inverter circuit, and the refrigeration cycle is driven together with the indoor/outdoor fan motor 11, the air conditioner can be operated indoors. Cold air or hot air generated by heat exchange in the inner heat exchanger 7 is blown out from the air outlet 3 a formed on the front surface of the peripheral wall cover 3 . During this operation, the power frequency of the hermetic compressor 10 changes according to the load, changing the heating and cooling capacity.

Here, suppose that during such operation, dew condensation falls on the bottom plate 2, and rainwater enters the main body 1 due to heavy rain. Then, the water flows out to the outdoor side 6 following the slope of the slope part 2c, and is quickly drained to the outside from the drainage hole.

In other words, the hermetic compressor 10 is
This will prevent condensation, rainwater, etc. from accumulating around the area. This, together with the resin molding of the bottom plate 2, forms an insulating effect around the legs 10a of the hermetic compressor 10, and even if the frequency increases or decreases, leakage current from the hermetic compressor 10 side Even if this occurs, it will not leak to the surrounding wall cover 3 or other equipment. Moreover, even if rainwater enters strongly from outside, the hermetic compressor 10
Since the plate-like ribs 12 around the device prevent water from being applied to the equipment, it is also possible to prevent electrical leakage caused by strong rainwater.

Therefore, it can be seen that leakage from the hermetic compressor 10 due to variation in capacity can be prevented with a simple structure. Moreover, the plate-like ribs 12 not only prevent rainwater from entering, but also reinforce the rigidity of the bottom plate 2, making it strong against falling and the like.

[Effects of the invention] As explained above, according to this invention, the area around the compressor can be insulated by the insulating performance of the bottom plate itself and by preventing rainwater from entering due to the ribs and slopes.

As a result, leakage of current from the compressor due to capacity change can be prevented. Furthermore, since the bottom plate is made of resin and only the sloped portion and ribs are formed on the bottom plate, the structure is simple and the cost is low.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of this invention, Figure 1 is a side sectional view showing the entire window type air conditioner, Figure 2 is a plan view of its bottom plate, and Figure 3 is the bottom plate. FIG. 4 is a perspective view showing the appearance of the air conditioner, and FIG. 5 is a side sectional view showing a conventional window type air conditioner. 1...Main body, 2...Bottom plate, 2c...Slope part, 3
... Peripheral wall cover, 7 ... Indoor heat exchanger, 9 ...
Outdoor heat exchanger, 10... (closed type) compressor, 1
2...Plate-shaped rib (rib).

Claims (1)

[Scope of utility model registration request] In an integrated air conditioner in which an indoor/outdoor heat exchanger is provided in a main body consisting of a bottom plate and a peripheral wall cover, and a compressor is installed on the bottom plate, the bottom plate is made of synthetic resin with the bottom facing toward the outdoor side. What is claimed is: 1. An air conditioner comprising a sloping part that slopes downward, and having ribs protruding from the bottom plate around the compressor to prevent rainwater from entering from outside.