JPS5933818B2 - cooler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to increasing the cooling capacity of automobile and other coolers.

The condenser of an automobile interior cooling system, that is, a car cooler, is generally installed in front of the engine radiator so that the air used to cool the radiator also serves to cool the condenser.

Due to this structure, the cooling capacity of the condenser is limited, and the full capacity of the device is not necessarily utilized.

Therefore, in the present invention, the following second condenser is added to the conventional condenser row.
It was decided to add a condenser.

This makes it possible to lower the pressure on the high-pressure side of the refrigerant gas, reduce the amount of flash gas, and reduce power consumption.

This second condenser has a condensing tube housed in a sealed container in a horizontal position. This is equipped with an inlet for the drain falling from the evaporator and an outlet check valve located not lower than the top surface of the container, and the check valve has a valve body that moves due to the acceleration of the drain due to the movement of the automobile and closes the outlet. It is.

This will be explained with reference to FIG. 1 is a car engine,
2 is an engine radiator, 3 is a cooling fan directly connected to the engine, and 4 is a car cooler compressor, which is driven by the engine 1.

Reference numeral 5 denotes a condenser for a car cooler, and a fan 3 acts as a suction draft to cool the condenser.

6 is a refrigerant reservoir, and 1 is a refrigerant evaporator from which cold air is sent into the car.

Reference numeral 8 is a drain pan that receives indoor moisture that condenses and falls on the heat radiation (cold heat) surface of the evaporator T.

The foregoing is a conventional and common equipment for car coolers, to which the present invention incorporates a second refrigerant condenser, indicated at 20.

9 is a box-shaped, cylindrical, etc. sealed container into which a refrigerant condensing pipe 10 is installed.
to accommodate.

If the container 9 is box-shaped, it should be flat, and if both the box-shaped and cylindrical shapes are in a horizontal position, it is convenient to store it under the floor of a car.

The condensing pipe 10 is connected between the refrigerant pipes of the air-cooled condenser 5 and the evaporator γ.

In the case shown, since there is a refrigerant reservoir 6, the outlet of the refrigerant pipe 10 is connected to this.

Drain from the drain pan 8 is introduced into the sealed container 9 through a pipe 11 from an inlet 12 at the lower part thereof, passes through a check valve 14 from an outlet 13 at the upper part, and is discharged from a discharge pipe 21.

The check valve 14 is shown in a vertical sectional view in FIG. A horizontal valve seat 16 located at , and a support 11 supporting the valve body 15 below.
It consists of etc.

The supports 1γ are several arms extending horizontally from the inner wall 14a of the valve box of the check valve 14, and even if the valve body 15 is seated on these arms, the drain can freely flow through the gap 17a between the adjacent supports 1γ, 1γ. This valve passes through this part when the car accelerates,
This is to prevent the drain in the container 9 from accelerating and overflowing from the discharge pipe 21 when decelerating or changing direction.

For this reason, the valve body is kept open by sitting on the support 11 with its own weight without imposing any special tension on the valve body.On the other hand, the valve body is not very heavy, and the drain inside the container The weight is such that it can be pushed upward by the acceleration of the valve seat 16 and pressed against the valve seat 16, thereby closing the valve.

In view of the purpose of the valve as described above, the check valve 14 must be positioned so as not to be lower than the upper surface of the container 9.

When comparing the device of the present invention as described above with a conventional car cooler with a compressor having a cylinder capacity of 110 cc and a rotation speed of 2,000 R/M, the outside temperature is 32°C and the humidity is 82°C.
．． At 2%, the evaporator outlet air temperature is 5℃ with the conventional model.
According to the present invention, when the inside temperature of the car is 21°C, the blown air temperature is 3°C and the inside temperature is 16°C.

In the case of the present invention, if the temperature of the air inside the vehicle is kept at 21° C., which would be the temperature inside the vehicle without using the device of the present invention, the temperature regulator operates frequently and the operating time of the compressor becomes much shorter than in the conventional case.

The above results show that the second condenser in the present invention has a refrigerant condensing pipe of 12 m/m 2.4 M and 9 m/m 7.2 M.
This is the case when these are connected in series and the container capacity is approximately 3 tons and is installed under the floor.

It should be noted that the above system is also suitable for ordinary air coolers.

In this case, there is no need for a check valve as in the case of automobiles, and the condenser using a drain only needs to be located at a lower position than the drain pan of the evaporator, and its shape etc. are not subject to restrictions as in the case of automobiles. Nor.

[Brief explanation of drawings]

Figure 1 is a system diagram when the present invention is used in a car cooler.
FIG. 2a is a longitudinal sectional view of a check valve when the present invention is used in a car cooler, and the same is a view taken along arrow AA in FIG. 2a. 1...Car engine, 2...Radiator, 3...Cooling fan, 4...Cooler compressor, 5...Conventional condenser ,6・
... Refrigerant reservoir, γ ... Evaporator, 8 ...
... Drain pan, 9 ... Condenser container in the present invention, 10 ... Refrigerant condensing pipe, 11 ...
...Drain pipe, 14...Check valve, 2
0...Condenser with drain.

Claims (1)

[Claims] 1 A condensing pipe is placed in a sealed container, this condensing pipe is connected between the condenser and evaporator of a normal car cooler consisting of a compressor, a condenser, and an evaporator, and the sealed container has an inlet for the drain that falls from the evaporator. and an outlet check valve located not lower than the top surface of the container, and the check valve has a valve body that closes the outlet by moving due to acceleration of the drain due to the movement of the automobile.