JPS632818Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an improvement of an air conditioner.

Figure 1 shows a conventional air conditioner, in which 1 and 2 are a pair of left and right partition plates made of galvanized iron plates, etc.;
4 is an outer panel made of plastic or painted iron plate. 5 and 6 are blowers driven by an electric motor 7; 8 is an electrical component containing control parts for the air conditioner; 9 is a heat exchanger; 10 is an electric heater;
Reference numeral 11 indicates a plurality of electrical wires connecting the electric heater 10 and the electrical equipment 8, and reference numeral 12 indicates a blowout grill.

The air sucked into the air conditioner from inside the room is blown into the blower 5.6 and then discharged, passing through the heat exchanger 9 where it is cooled or heated. During cooling, after being cooled by the heat exchanger 9, the electric heater 1
However, during cooling, the electric heater 10 is not energized and is not heated, and the air is blown out of the air conditioner through the blow-off grill 12.

During heating, the air passes through the electric heater 10 after being heated by the heat exchanger 9, but when the heating load is large, such as when the indoor air temperature is low, the electric heater 10 is energized, and after being further heated, it passes through the electric heater 10. Blown out of the air conditioner.

The electrical wiring 11 passes through the partition plate 1 and communicates between the electric heater 10 and the electrical component 8, and a rubber bush 13 is used for this penetration portion.

As shown in FIG. 2, the rubber bush 13 is provided with cuts 13a and 13b for passing the electrical wiring 11 through, and is fitted into the through hole of the partition plate 1 as shown in FIG. Multiple electrical wiring 11
is penetrated. A heat insulating material 14 having a through hole having a diameter φc larger than the rubber bushing 13 is layered on the inner surface of the partition plate 1.

Therefore, as is clear from FIG. 4, gaps are created between the plurality of electrical wiring lines 11 and between the electrical wiring lines and the rubber bushing 13.

For this reason, during cooling, the air cooled by the heat exchanger 9 flows from the gap as shown by the arrow in Figure 4, cooling the outer panel 3, causing dew condensation on the outer panel 3. . Furthermore, since the portion G on the inner surface of the partition plate 1 to which the heat insulating material 14 is not layered is exposed to cold air and cooled, there is a drawback that dew condensation occurs on the outside of the partition plate 1 as well.

The present invention was proposed to solve such problems, and the electrical wiring that penetrates the partition plate that partitions the cold air area and the non-cool air area is routed through a rubber bushing at the part that penetrates the partition plate. In the air conditioner, the rubber bushing is provided with a number of electrical wiring through-holes corresponding to the number of air wirings, and a flange part presses the entire periphery of the rubber bushing fitting hole of a heat insulating material lined inside the partition plate. The present invention relates to an air conditioner characterized by being provided with.

As mentioned above, in the present invention, multiple electrical wirings do not need to pass through the rubber bushings installed at the electrical wiring penetrations in the partition plate that separates the cold air area from the non-chilled air area, as in the conventional case. , the number of through-holes corresponding to the number of electrical wirings is drilled in the rubber bushing, and one electrical wiring is passed through each through-hole, so there is no gap between the electrical wiring and the rubber bushing. Prevents condensation from forming on the outer panel during cooling.

Furthermore, in the present invention, the rubber bushing includes:
Since a flange is provided that presses the entire periphery of the rubber button fitting hole in the heat insulating material lined inside the partition plate, the entire periphery of the rubber button fitting hole on the inner surface of the partition plate is pressed against the flange and the heat insulating material. , and therefore will not be exposed to cold air.
Condensation on the partition plate is prevented.

The present invention will be described below with reference to the illustrated embodiments.

Reference numeral 21 denotes a rubber bushing, which is fitted into the through hole of the electrical wiring 23 that connects the electrical equipment and the electric heater provided on the partition plate 22 of the air conditioner, and is inserted into the through hole of the electrical wiring 23 in the number corresponding to the number of the electrical wiring 23. Electrical wiring through holes 21a having the same diameter D as the diameter d are bored, and one electric wiring 23 is passed through each through hole 21a. Therefore, cold air during cooling does not leak out from the gap between the through hole 21a of the rubber bush 21 and the electric wiring 23.

Further, a collar piece 21c that presses the outer surface of the partition plate 22 with an annular groove 21b that fits into the peripheral edge of the through hole of the partition plate 22 protrudes from the outer end of the rubber bush 21, and a flange piece 21c that presses the outer surface of the partition plate 22 is provided at the inner end. A flange piece 21d that presses the entire periphery of the through-hole of the rubber bushing 21 in the heat insulating material 24 layered on the inner surface of the plate 22 is provided in a protruding manner, and the dimension E between the flange piece 21d of the rubber bush 21 and the annular groove 21d is insulated. It is determined to be slightly smaller than the thickness e of the material 24.

Therefore, since the entire periphery of the rubber bush through hole in the heat insulating material 24 is crimped by the flange piece 21d, the cold air can be sealed between the flange piece 21d of the rubber bush and the heat insulating material 24, and the rubber bush of the partition plate 22 is sealed. The through hole portion is not exposed to cold air.

According to the illustrated embodiment, no cold air leaks from the gap between the electrical wiring through hole 21a of the rubber bushing 21 and the electrical wiring 23.
Since dew condensation does not occur on the outer skin of the partition plate 22, and the periphery of the through hole of the rubber bushing 21 in the partition plate 22 is sealed by the flange 21d of the rubber bush 21 and the heat insulating material 24, the partition plate 22 There is no risk of condensation forming.

[Brief explanation of the drawing]

Figure 1 is a plan view of a conventional air conditioner, Figures 2 and 3 are a front view and a vertical side view of the rubber bushing, respectively, Figure 4 is a vertical side view showing the electrical wiring penetration, and Figure 5 is a vertical side view of the rubber bushing. Vertical side view showing the electrical wiring penetration part in one embodiment of the air conditioner according to the present invention, No. 6
7 and 7 are a front view and a vertical side view of the rubber bushing, respectively. 21... Rubber button, 21a... Electric wiring through hole, 21d... Flange piece, 22... Partition plate, 23...
...Electrical wiring, 24...Insulation material.

Claims (1)

[Scope of utility model registration request] In an air conditioner in which electrical wiring that penetrates a partition plate that partitions a cold air area and a non-chill air area is routed via a rubber bushing in the partition plate penetration part, a number of electrical wirings corresponding to the number of electrical wirings are installed in the rubber bushing. An air conditioner characterized in that a through hole is bored and a flange is provided to press the entire periphery of the rubber bushing hole of the heat insulating material attached inside the partition plate.