JPH0434088Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a sub-engine-driven cooling system for vehicles, and in particular, involves complicated piping for cooling water for the sub-engine that drives the refrigeration cycle. The present invention relates to a sub-engine-driven cooling system for a vehicle configured to send air to a radiator without any air flow.

(Prior Art) In general, a sub-engine-driven cooling system for a vehicle includes a frame supported below the floor of the vehicle, and various devices that constitute a refrigeration cycle and a sub-engine that drives these devices mounted on the frame. (Utility Model Application No. 60-174614) This type of conventional system is designed to efficiently place various equipment under the floor of a narrow vehicle. The sub-engine is placed on one side of the frame in order to reduce the noise by placing it separately from the engine and covering it with soundproofing material.
The sub-engine radiators are arranged separately from each other on the other side.

(Problem that the invention aims to solve) However, in the case where the sub-engine and radiator are placed separately on both sides of the frame, the connection hose for sending cooling water must be long, and it is difficult to install the sub-engine and radiator in a narrow space under the floor. However, there was a problem in that the hoses became loose and air pockets were likely to form, resulting in poor cooling of the sub-engine.

In addition, there was a problem that the long hose deteriorated or collapsed due to long-term use, resulting in poor cooling water flow and overheating of the sub-engine.

Therefore, the purpose of the present invention is to solve the problems of the above-mentioned conventional technology, and to provide a sub-engine that prevents poor cooling of the sub-engine by arranging the sub-engine and radiator separately on both sides of the frame. An object of the present invention is to provide a drive type cooling device.

[Structure of the idea]

(Means for Solving the Problems) In order to achieve the above object, the present invention supports a frame below the floor of a vehicle, and on this frame various devices forming a refrigeration cycle and driving these devices are provided. In a sub-engine-driven cooling system for a vehicle equipped with a sub-engine, the sub-engine is disposed on one side of the frame, a radiator for the sub-engine is disposed on the other side, and the frame is configured with a hollow frame tube, The present invention is characterized in that the cooling water for the sub-engine is sent to the sub-engine radiator through the frame pipe.

(Function) In the present invention, the cooling water for the sub-engine is sent to the sub-engine radiator through the frame pipe, thereby eliminating the need for a conventional long connection hose.

(Embodiment) Hereinafter, an embodiment of a sub-engine-driven cooling device according to the present invention will be described with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 indicates a vehicle body, and a frame 2 is supported below a floor 1a of the vehicle body 1.
This frame 2 is composed of a hollow frame tube 2a, as will be described later. A condenser CN and a sub-engine radiator R constituting a refrigeration cycle are disposed on one side of the frame 2, and a cooling fan 3 is disposed inside thereof. The cooling fan 3 is driven by an electric motor 5, and when the fan 3 is driven, cooling air is sucked in from the outside as shown by the arrow, exchanges heat, and blows downward through the vehicle body 1. Adjacent to these and inside thereof, an air conditioner case 6 is provided, and within the air conditioner case 6, an air cooler C and an air heater H are arranged.

On the other hand, on the other side of frame 2 is the sub engine.
It is equipped with SE. As shown in Fig. 2, the output shaft of the sub-engine SE is connected to the input shaft of the compressor CM that constitutes the refrigeration cycle via the rotating shaft 7, and the pulley 9 on the input shaft of the compressor CM is connected to the input shaft of the compressor CM via the V-belt. The pulley 11 on the input shaft of the fan 10 is driven.

For cooling or heating, the air inside the vehicle is drawn into the air conditioner case 6 from the indoor air intake port 12 as shown by the arrow (Fig. It is sent into the vehicle interior through a duct (not shown).

According to the present invention, both sides of the frame 2 are formed by hollow frame tubes 2a, and one end of the short first and second hoses 15, 16 is provided at the opening of the end of the frame tube 2a on the sub-engine SE side. are connected to each other. The other end of the first hose 15 is connected to the cooling water inlet 17 of the sub-engine SE, and the other end of the second hose 16 is connected to the cooling water outlet 18 of the sub-engine SE. Further, a tank 19 with a water inlet is attached to the cooling water outlet 18.

On the other hand, one ends of short third and fourth hoses 20 and 21 are respectively connected to the opening at the end of the frame pipe 2a on the side of the sub-engine radiator R, and the other end of the third hose 20 is connected to the opening for cooling the radiator R. The fourth hose 21 is connected to the water inlet 22, and the other end of the fourth hose 21 is connected to the cooling water outlet 23. Also,
The sub-engine SE cooling water inlet/outlet 17, 18 is located at a higher position than the frame pipe 2a, and the radiator R
The cooling water inlet/outlet 22, 23 is set at a lower position than the frame pipe 2a, so that the cooling water does not remain in the frame pipe 2a when the sub-engine SE is stopped.

With the above configuration, the frame pipe 2a can be used as a conduit for cooling water, making it possible to shorten the connecting hose and reduce weight. Since it is made higher than the water inlet and outlet ports 22 and 23, water can be easily filled, and since heat exchange of cooling water is also performed in the frame tube 2a, effects such as the ability to downsize the radiator R can be obtained. In addition, since the sub-engine SE and radiator R are placed separately,
Since the sub-engine SE makes a noise, it is easy to cover it with a noise material (not shown).

Further, in addition to the above configuration, if the reinforcing material of the frame 2 is constructed of a frame tube, this frame tube can also be used as a conduit for circulating refrigerant liquid, hot water, or the like.

[Effect of idea]

Since the present invention is configured as described above, the flow of the cooling water in the hose is not blocked, and it is possible to prevent insufficient cooling of the sub-engine.

[Brief explanation of drawings]

FIG. 1 is an explanatory view showing an embodiment of a sub-engine driven cooling system for a vehicle according to the present invention, and FIG. 2 is a plan view thereof. 1... Vehicle body, 1a... Floor, 2... Frame, 2
a...Frame tube, 3...Cooling fan, C...Air cooler, H...Air heater, SE...Sub engine, CN...Condenser, R...Radiator.

Claims (1)

[Scope of utility model registration request] In a sub-engine-driven cooling system for a vehicle, in which a frame is supported below the floor of the vehicle, and various devices constituting a refrigeration cycle and a sub-engine that drives these devices are mounted on the frame, one side of the frame A sub-engine is disposed on one side, a radiator for the sub-engine is disposed on the other side, and the frame is composed of a hollow frame tube,
A sub-engine-driven cooling system for a vehicle, characterized in that the cooling water for the sub-engine is sent to a radiator for the sub-engine through the frame pipe.