CN2302158Y

CN2302158Y - Precooling device of air conditioner for vehicle

Info

Publication number: CN2302158Y
Application number: CN 97208295
Authority: CN
Inventors: 王光建
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-16
Filing date: 1997-04-04
Publication date: 1998-12-30
Anticipated expiration: 2007-04-04

Abstract

The utility model relates to a pre-cooling device of the air conditioner for vehicles. The utility model is composed of a shell body, an inlet pipe, an outlet pipe, an inlet end cover, an outlet end cover, a heat exchange pipe, etc. The inlet pipe is communicated with an outlet of a compressor, and the outlet pipe is communicated with an inlet of the condenser. The shell body is provided with cooling water. When the high-temperature and high-pressure refrigerating working medium which is compressed flows through the heat exchange pipe, the high temperature and pressure refrigerating working medium generates heat exchange with the cooling water of the shell body, and the temperature and the pressure of the refrigerating working medium is quickly reduced. When the utility model is used, the pressure of the outlet end of the compressor reduces 5-6 kg, the temperature of the air outlet of an evaporator reduces 7 DEG C-10 DEG C, not only the refrigerating capacity of the air conditioner is improved, but also the power consumption is reduced.

Description

Cooler before the air conditioning for automobiles

The utility model belongs to parts in the automotive air-conditioning system.

At present, the basic cycle of automotive air-conditioning system is: compression → condensation → evaporation → compression.The power that this air-conditioning consumes is too big, very uneconomical.

The purpose of this utility model is to improve the refrigerating capacity of existing air conditioning for automobiles, reduces its consumption of power again.

The purpose of this utility model realizes by following proposal: between the compressor and condenser of existing automotive air-conditioning system, increase a preceding cooler, the condensed water that generates when evaporator is freezed imports wherein as cooling system conditioner, led in the water in the High Temperature High Pressure refrigeration working medium the past cooler that more compressed machine is extruded, allow refrigeration working medium and water carry out interchange of heat betwixt, the temperature and pressure of refrigeration working medium is reduced rapidly, and then the operation pressure of reduction compressor, realize the purpose of this utility model.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Accompanying drawing 1 is a front section view of the present utility model.

Accompanying drawing 2 is birds-eye vieies of the present utility model.

Accompanying drawing 3 is lateral plans of the present utility model.

In the accompanying drawings, [1] is metering hole, and [2] are outlet pipes, and [3] are outlet end caps, and [4] are housings, and [5] are heat exchanger tubes, and [6] are inlet end caps, and [7] are induction pipes.Housing [4] is the container that can be filled with water of a upward opening, and water therebetween is exactly cooling system conditioner.Should just lean on the condensed water of the generation of evaporator to mend the source later on filled with water in the housing [4] during beginning.In order to prevent that the water in the housing [4] from being swung in vehicle traveling process, preferably less than the cross-sectional plane of housing [4] base portion, promptly opening should shrink the opening that housing [4] makes progress to some extent.The radical of heat exchanger tube [5] can be selected within the 1-120 root according to the size of refrigerating capacity, if supporting with existing 508 type compressors, can obtain optimum efficiency with 81 heat exchanger tubes.If supporting with existing 507 types or 505 type compressors, the radical of heat exchanger tube should be less than 81.All heat exchanger tubes [5] are fixed between the two parallel relative walls of housing [4] uniform sequentially.Wherein, should be run through by heat exchanger tube [5] near the wall of inlet end cap [6] one sides, and near only opening a metering hole [1] in the center of every heat exchanger tube [5] on the wall of outlet end cap [3] one sides.The aperture of the pairing metering hole of every heat exchanger tube [5] [1] is unequal, and it is equal substantially that the principle of determining pore size will reach in equal time the refrigeration working medium by every heat exchanger tube [5] exactly.Inlet end cap [6] will contain the entrance point of all heat exchanger tubes [5].Outlet end cap [3] will contain all metering holes [1].Induction pipe [7] is arranged, the exit end UNICOM of induction pipe [7] and compressor on the inlet end cap [6].Outlet pipe [2] is arranged, the entrance point UNICOM of outlet pipe [2] and condenser on the outlet end cap [3].The utility model is fixed on the chassis of automobile, and its position height will be lower than evaporator, so that among the condensed water importing housing [4] with the evaporator generation.When air conditioning for automobiles was worked, High Temperature High Pressure refrigeration working medium after compression can only enter in the condenser through induction pipe [7], heat exchanger tube [5], metering hole [1], outlet pipe [2].When the High Temperature High Pressure refrigeration working medium flows through heat exchanger tube [5], just with housing [4] in cooling water expansion tank generation interchange of heat, make the temperature and pressure of refrigeration working medium be able to rapid reduction, then can seethe with excitement, evaporate after the cooling water expansion tank heat absorption and arrange in the air.

The utility model is simple in structure, making is easy, use this practical after, can make the pressure of air-conditioning compressor exit end reduce 5-6Kg, the evaporator draught temperature reduces 7-10 ℃, not only can increase the refrigerating capacity of air-conditioning greatly, and can make the consumption of power of compressor reduce about 30%.If with this reality novel and I in No. 96235271.3 supporting uses of patent of first to file, effect then can be better.

Claims

1, cooler before a kind of air conditioning for automobiles, by housing [4], induction pipe [7], outlet pipe compositions such as [2], it is characterized in that housing [4] is the container that can be filled with water of a upward opening, heat exchanger tube [5] is fixed between the two parallel relative walls of housing [4] uniform sequentially, wherein, wall near inlet end cap [6] one sides is run through by heat exchanger tube [5], near only opening a metering hole [1] on the wall of outlet end cap [3] one sides in the center of every heat exchanger tube [5], inlet end cap [6] will contain the entrance point of all heat exchanger tubes [5], outlet end cap [3] will contain all metering holes [1], induction pipe [7] and compressor outlet UNICOM, the entrance point UNICOM of outlet pipe [2] and condenser.

2, cooler before a kind of air conditioning for automobiles as claimed in claim 1 is characterized in that opening that housing [4] the makes progress cross-sectional plane less than housing [4] base portion.

3, cooler before a kind of air conditioning for automobiles as claimed in claim 1 is characterized in that the radical of heat exchanger tube [5] can be selected according to the size of refrigerating capacity within the 1-120 root, if supporting with existing 508 type compressors, can obtain optimum efficiency with 81 heat exchanger tubes.