JPH01273717A - Air conditioner for rolling stock - Google Patents

Abstract

PURPOSE:To prevent a drop of drain from a return port further contriving effective utilization of in-room space by providing a compressor to be arranged behind an in-room heat exchanger while forming a suction port in both sides of a blow port further in a plane almost equal to the blow port. CONSTITUTION:A suction port 21 is formed in both sides of a blow port 5 in a side surface, forming the blow port 5, in a case 2 further in the same horizontal surface, and a return duct 20 is formed so as to be connected to the suction port 21. Intake air, inducted through the suction port 21 and the return duct 20, is blown from the blow port 5 via a heat exchanger 4. Compressors 8, 8 are arranged in a chamber 22 behind a chamber arranging the heat exchanger 4. In this constitution, since the suction port 21 is opened to the case 2 in its lateral direction, a drop of drain from a return port can be prevented.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) The present invention relates to an air conditioner for a railway vehicle that prevents drain from falling from a return port and makes effective use of indoor space. .

(Prior Art) The air conditioner main body 1 of this type of air conditioner for railway vehicles is as follows:
As shown in FIG. 3, an indoor fan device 3 is installed inside the case 2.
and an indoor heat exchanger 4, and an indoor fan device 3.
Air outlet 5゜5 on the side near the side and suction port 6 on the bottom.
6.6, and compressors 8, 8 are arranged in chambers 7.7 located on both sides of the indoor heat exchanger 4, and the two air conditioner main bodies 1.1 are As shown in the figure, the air outlets 5 are arranged at both ends of the roof 9a of the railway vehicle 9 so as to face each other, and the air outlet 5 of these two air conditioner bodies are connected to each other by an air duct 10 extending in the longitudinal direction. The ports are connected to each other by return ducts 11 extending in the longitudinal direction.

Further, in the partitioned chamber 12 in the case 2, an outdoor fan device 13 and an outdoor heat exchanger (not shown) are arranged.

[Problem to be solved by the invention]

In the air conditioner for railway vehicles of the above type, the air conditioner main body's suction ports are formed on the bottom surface of the case, so the return duct that connects the air conditioner main body suction ports is located on the bottom side of the air conditioner main body. However, if the ceiling of the cabin is low or the suction port opens downwards, if condensation forms, the condensate may fall into the cabin, and installation of the return duct to the suction port becomes troublesome. There are some difficulties.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide an air conditioner for a railway vehicle that prevents drain from falling from a return port and makes effective use of indoor space.

(Means for Solving the Problems) The air conditioner for a railway vehicle of the present invention includes a fan device and an indoor heat exchanger inside a case, and has an air outlet formed on a side surface near the fan device, with the air outlet facing opposite to each other. A pair of air conditioner bodies are installed at both ends of the roof of a railway vehicle, a blowout duct connects the outlets of these air conditioners, and a return connects the air conditioners' suction ports. A compressor is disposed behind the indoor heat exchanger inside the case, and the compressor is installed on both sides of the side air outlet forming the air outlet of the case and in a horizontal plane that is almost the same as the air outlet. A suction port is formed, and a blowout duct and a return duct are located in substantially the same horizontal plane.

(Function) In the air conditioner for a railway vehicle of the present invention, suction ports are formed on both sides of the air outlet provided in the case and at positions in a horizontal plane that is approximately the same as the air outlet, and the air conditioners are connected to each other by a return duct. By tying them together, the outlet duct is located in almost the same horizontal plane as the return duct, which prevents the drain from falling from the return port and makes effective use of indoor space.

(Example) An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, the same members as in FIG. 3 are given the same reference numerals.

In FIG. 1, reference numeral 20 indicates a return duct provided in the case 2, and the return duct 20 is located on both sides of the outlet 5 inside the case 2.

The suction ports 21 connected to the return duct 20 are located on both sides of the air outlet on the side surface forming the air outlet 5 of the case 2 and in substantially the same horizontal plane as the air outlet.

The air conditioner main body 1 is disposed at both ends on the roof 9a of a railway vehicle 9, such as a train passenger car, so that the air outlets face each other, and the air inlets 21 and 21 are connected by a return duct 9. There is. Further, the air outlet 5.5 of the main body of the air conditioner is connected by an air outlet duct 10. Further, a compressor 8.8 is disposed in the chamber 22 located behind the chamber in which the indoor heat exchanger 4 of the case 2 is disposed.

Therefore, the air conditioner main body 1.1 is arranged at both ends on the roof 9a of the railway vehicle 9 so that the air outlet 5 and the air inlet 21 face each other, and the air conditioner body 1.1 is connected to each other by the air duct 10.
When the suction ports are connected with the return duct 9,
The blowout duct 10 and the return duct 9 are located in substantially the same horizontal plane, so that the ceiling of the vehicle becomes high, and the interior space can be used effectively. Furthermore, since the suction port 21 opens in the lateral direction of the case 2, it is possible to prevent drain from falling from the return port.

〔Effect of the invention〕

As described above, according to the present invention, the return duct is installed at the same height as the air conditioner body, so the ceiling of the vehicle becomes higher, the interior space can be used more effectively, and the air inlet Since the case is open in the lateral direction, drain can be prevented from falling from the return port, and since return air is sucked in through the return duct, noise can be kept low.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the air conditioner main body of the air conditioner for a railway vehicle of the present invention, FIG. 2 is a diagram showing the usage state of the air conditioner for a railway vehicle of the present invention, and FIG. 3 is a diagram of a conventional railway vehicle air conditioner. FIG. 4 is a sectional view of the air conditioner main body of the air conditioner for railway vehicles, and is a diagram showing the state of use of the conventional air conditioner for railway vehicles. 1... Air conditioner body, 5... Air outlet, 9...
Return duct, 10...Blowout duct, 20...
Return duct, 21... Suction port. Applicant's agent Yumi Sato 1 Figure 2

Claims (1)

[Claims] A pair of air conditioners, which are equipped with a fan device and an indoor heat exchanger inside the case, have an outlet formed on the side near the fan device, and are arranged at both ends on the roof of a railway vehicle so that the outlets face each other. In an air conditioner for a railway vehicle that has a machine body, a blow-off duct that connects the outlets of the air conditioner body, and a return duct that connects the suction ports of the air conditioner body, the indoor heat exchanger inside the case for a railway vehicle, characterized in that a compressor is disposed at the rear of the case, and suction ports are formed on both sides of the air outlet on the side surface forming the air outlet of the case, and in a horizontal plane that is substantially the same as the air outlet. Air conditioner.