CN200996754Y

CN200996754Y - Refrigerating economizing air conditioner of automobile

Info

Publication number: CN200996754Y
Application number: CNU2006201754257U
Authority: CN
Inventors: 汪熊熊
Original assignee: Shanghai General Motors Co Ltd
Current assignee: SAIC General Motors Corp Ltd
Priority date: 2006-12-31
Filing date: 2006-12-31
Publication date: 2007-12-26
Anticipated expiration: 2016-12-31

Abstract

The utility model relates to a thermal storage and energy-saving conditioner used by vehicle. Through connection pipeline, an expansion valve (1), an evaporator (2), an air compressor (4), a condenser (6) and a liquid storage tank are connected in turn; furthermore, the liquid store tank (7) is connected with the expansion valve (1) so as to form a cycling system. The utility model is characterized in that the evaporator (2) and the air compressor (4) are connected with each other by a gas bag (3) storing gaseous refrigeration agent.

Description

Cold storage vehicle energy saving air-conditioning

Technical field

The utility model relates to a kind of energy-saving type air conditioner, particularly a kind of energy-saving type air conditioner that is applicable to automobile.

Background technology

Need motor driven compressor of air conditioner compressed gaseous cold-producing medium on the orthodox car, finish kind of refrigeration cycle, thus the power of engine to export some be to consume on air-conditioning, rather than driving vehicle, especially in summer, during the air-conditioning high loaded process, oil consumption is obviously risen.

For this reason, produced a kind of vehicle energy saving air-conditioning, the energy that reclaims when it utilizes automobile brake drives compressor of air conditioner work, keeps kind of refrigeration cycle, and then realizes purpose of energy saving.

But this vehicle energy saving air-conditioning also exists some problems.In automobilism, run into inappropriate braking energy and reclaim, or recover energy hour, just can cause gaseous refrigerant in time not to be reduced to liquid refrigerant and put into result in the kind of refrigeration cycle again.So, being subjected to the restriction of liquid refrigerant surplus, the refrigerating capacity of whole kind of refrigeration cycle will descend.Therefore,, need suitably increase the capacity of liquid refrigerant, and preserve gaseous refrigerants to be compressed such as a large amount of for realizing good refrigeration.In addition, when liquid refrigerant surplus deficiency, or during the gaseous refrigerant memory space inadequate, for realizing good refrigeration, can only open original compressor of air conditioner immediately, the enforce compression gaseous refrigerant is kept kind of refrigeration cycle.This will cause the increase of energy consumption.

The utility model content

For addressing the above problem, the purpose of this utility model is to provide a kind of vehicle energy saving air-conditioning, utilize the braking energy that reclaims to replace engine to drive compressor of air conditioner, gaseous refrigerant is compressed and finish kind of refrigeration cycle, when air conditioning for automobiles moves, reduce the power output of engine, satisfy the refrigeration requirement of car load simultaneously air-conditioning to compressor of air conditioner.

The purpose of this utility model also is to provide a kind of vehicle energy saving air-conditioning, when being applied to PHEV, starts the difficult problem of air conditioner refrigerating in the time of can solving engine shutdown.

Cold storage vehicle energy saving air-conditioning of the present utility model, by connecting pipe expansion valve 1, evaporimeter 2, compressor 4, condenser 6, fluid reservoir 7 are connected in turn, and described fluid reservoir 7 is connected with described expansion valve 1, and the formation circulatory system, wherein, between evaporimeter 2 and compressor 4, also be connected with air bag 3 as the gaseous refrigerant memory space.

According to cold storage vehicle energy saving air-conditioning of the present utility model, wherein, described compressor 4 has the fluid level condition or gaseous refrigerant memory space state that can detect liquid refrigerant in motoring condition and the fluid reservoir 7 and the air-conditioner controller 5 that makes the braking energy work of compressor 4 utilization recovery according to the clutch combination of testing result control compressor 4.

According to cold storage vehicle energy saving air-conditioning of the present utility model, wherein, described air bag 3 is placed in the irregular space between back seat and the storage room.

According to cold storage vehicle energy saving air-conditioning of the present utility model, wherein, described air bag 3 is placed in the front bumper.

According to cold storage vehicle energy saving air-conditioning of the present utility model, wherein, described air bag 3 is placed in the storage room.

According to cold storage vehicle energy saving air-conditioning of the present utility model, wherein, described air bag 3 is placed under the seat.

According to cold storage vehicle energy saving air-conditioning of the present utility model, wherein, described air bag 3 is placed in the seat.

Cold storage vehicle energy saving air-conditioning of the present utility model has the following advantages: use the braking energy that reclaims, with reducing the power output of engine to compressor of air conditioner significantly, reduce oil consumption, improve car load integral energy conversion efficiency.Can pass through the accurate Calculation of the memory space of liquid towards refrigerant charge, gaseous refrigerant, and rationally arrange to arrange; Need upgrade in time to the control of air-conditioning, coordinate the recycling of braking energy and the timely intervention of engine, ensure that air-conditioning all can even running in whole driving process.

In addition, when the utility model is applied to motor vehicle driven by mixed power, the startup problem of air-conditioning in the time of can solving engine shutdown.The advantage of PHEV is to keep engine in the operation of efficient district, under some operating mode, as idling, slide, under braking or the low speed and load, can instruct engine shutdown, improves the operational efficiency of car load, thereby reaches energy-conservation, fuel-efficient purpose.And because under traditional air-conditioning drive scheme, in case engine shutdown, compressor of air conditioner is also shut down thereupon, kind of refrigeration cycle can't be carried out, and air-conditioning also stops refrigeration; If will keep the operation of air conditioner refrigeration, must force the engine operation, the advantage of hybrid power system is also simultaneously weakened so.After using the present invention, it is cold that PHEV can realize shutting down Space-Time Modulation, needn't force engine in the operation of poor efficiency district because of starting air conditioner refrigerating, ensured the prioritization scheme of hybrid power system.

In a word, by cold storage vehicle energy saving air-conditioning of the present utility model, can reduce the power output of engine, thereby reach energy-conservation, fuel-efficient purpose compressor of air conditioner.Simultaneously, if be applied to PHEV, start the difficult problem of air conditioner refrigerating in the time that engine shutdown can being solved.

Description of drawings

Fig. 1 is the kind of refrigeration cycle schematic diagram of cold storage vehicle energy saving air-conditioning of the present utility model;

Fig. 2 is the schematic diagram of expression as the placement location of the air bag of gaseous refrigerant memory space.

1, expansion valve 2, evaporimeter

3, air bag 4, compressor

5, clutch controller 6, condenser

7, fluid reservoir

The specific embodiment

Below, in conjunction with the accompanying drawings cold storage vehicle energy saving air-conditioning of the present utility model is elaborated.

Fig. 1 is the kind of refrigeration cycle schematic diagram of cold storage vehicle energy saving air-conditioning of the present utility model.

The working method of air conditioning for automobiles is: the compressed machine 4 of low pressure gaseous state cryogen flow that comes out from evaporimeter 2 becomes high pressure-temperature gas, become the liquid of high pressure low temperature through the radiating tube cooling cooling of condenser 6, again through dehumidifying of the drier in the fluid reservoir 7 and buffering, with than pressure stable and flux and flow direction expansion valve 1, flow to evaporimeter 2 at last then through throttling and step-down.Refrigerant one is met environment under low pressure and is promptly evaporated, and absorbs a large amount of heat energy.Air in the compartment continues to flow through evaporimeter 2, and therefore temperature also just reduces in the compartment.Liquid cryogen is flowed through and is become low-pressure gas once more behind the evaporimeter 2, is inhaled into the periodic duty that compressor 4 carries out next time again.

The cold storage vehicle energy saving air-conditioning of this utility model is in original automobile air-conditioning refrigeration circulation, increases an air bag 3, temporary transient low pressure refrigerant gas of preserving by evaporimeter 2 outputs.

Promptly, cold storage vehicle energy saving air-conditioning of the present utility model, by connecting pipe expansion valve 1, evaporimeter 2, compressor 4, condenser 6, fluid reservoir 7 are connected in turn, and described fluid reservoir 7 is connected with described expansion valve 1, and the formation circulatory system, wherein, between evaporimeter 2 and compressor 4, also be connected with air bag 3 as the gaseous refrigerant memory space.

Wherein, described compressor 4 has the fluid level condition or gaseous refrigerant memory space state that can detect liquid refrigerant in motoring condition and the fluid reservoir 7 and the air-conditioner controller 5 that makes the braking energy work of compressor 4 utilization recovery according to the clutch combination of testing result control compressor 4.

When automobile under steam, when need starting air conditioner refrigerating, air-conditioner controller 5 instruction expansion valves 1 are opened, the liquid refrigerant evaporimeter 2 of flowing through after expansion valve 1 throttling, step-down absorbs heat in the car and becomes low-pressure gas, then temporarily is stored in the air bag 3; When damped condition occurring, the clutch combination of air-conditioner controller 5 instruction compression machines 4, thus compressor 4 utilizes the braking energy operation work of reclaiming, and compression is finished kind of refrigeration cycle from the gaseous refrigerant in the air bag 3; When the liquid refrigerant liquid level is lower than the circulation minimum in the fluid reservoir 7, or the gaseous refrigerant memory space is when reaching the circulation maximum, the clutch combination of air-conditioner controller 5 instruction compression machines 4, thereby compressor 4 consumption of engine power output operation work, compression is finished kind of refrigeration cycle from the gaseous refrigerant in the air bag 3.Under actual road conditions, especially under the urban traffic situation, damped condition is more, and air-conditioning can utilize braking energy operation, and consumption of engine power output not can reduce oil consumption thus, realizes energy-conservation, fuel-efficient purpose.In addition, in cold storage vehicle energy saving air conditioning applications of the present utility model during in PHEV, owing to can preserve gaseous refrigerants to be compressed such as a large amount of, so can utilize motor to solve a difficult problem that when engine shutdown, starts air conditioner refrigerating.

Air bag 3 is used to store gaseous refrigerant, can be designed to arbitrary shape according to vehicle body space deployment scenarios, can be arranged on the car load in any possible irregular space, in the irregular space between back seat and storage room, in the front bumper, in the storage room, under the seat, even in the seat.

Claims

1, a kind of cold storage vehicle energy saving air-conditioning, by connecting pipe expansion valve (1), evaporimeter (2), compressor (4), condenser (6), fluid reservoir (7) are connected in turn, and described fluid reservoir (7) is connected with described expansion valve (1), and form the circulatory system, it is characterized in that

Between evaporimeter (2) and compressor (4), also be connected with air bag (3) as the gaseous refrigerant memory space.

2, cold storage vehicle energy saving air-conditioning according to claim 1, it is characterized in that described compressor (4) has the fluid level condition or gaseous refrigerant memory space state that can detect motoring condition and the interior liquid refrigerant of fluid reservoir (7) and the air-conditioner controller (5) that makes the braking energy work of compressor (4) utilization recovery according to the clutch combination of testing result control compressor (4).

3, cold storage vehicle energy saving air-conditioning according to claim 1 is characterized in that, described air bag (3) is placed in the irregular space between back seat and the storage room.

4, cold storage vehicle energy saving air-conditioning according to claim 1 is characterized in that, described air bag (3) is placed in the front bumper.

5, cold storage vehicle energy saving air-conditioning according to claim 1 is characterized in that, described air bag (3) is placed in the storage room.

6, cold storage vehicle energy saving air-conditioning according to claim 1 is characterized in that, described air bag (3) is placed under the seat.

7, cold storage vehicle energy saving air-conditioning according to claim 1 is characterized in that, described air bag (3) is placed in the seat.