Research on New Cleaning Method of Automobile Air Conditioner

on the car air conditioning cleaning market at present there are some problem of cleaning method has been widely criticized, simple and convenient cleaning method, in particular, the so-called clean air conditioning is “only spray cleaner, no water washing”, this will cause the pipeline internal dirt clean is not complete, easy to internal damage other parts of automobile air conditioning, affect the normal operation of the air conditioning, the remaining part of the chemical substances will also produce secondary pollution to the air inside the car, seriously affects people’s health and safety.


Automobile Air Conditioning Cleaning Problems
The air conditioning system not only affects the driver's driving safety, but also plays a vital role in the health of every member in the car [1].
The current of air conditioning cleaning concept is still in the blocking online, but in fact the dirt of air conditioning and various kinds of bacteria (staphylococcus aureus, legionella, aspergillus, influenza viruses, etc.) hidden in the on the face of no hidden inside, if not regular cleaning, these pollutants will continuously through circulation flow into the car in the air, in such an environment for a long time, people will feel dizzy and sick, the body tired; And easy to catch a cold, bronchitis, tonsillitis, pneumonia, and other serious harm to our health [2].
While cleaning the car air conditioning is the most thorough way apart inside air conditioner parts cleaning individually, but for some prospective new car and maintenance to love the good vehicle air conditioning is far from reach need apart to clean thoroughly, using and dismantling air-conditioning unit cleaning method is not only expensive and time-consuming, laborious, also don't adapt to the high pace of life, the transport demand. As a result of the existence of these problems, a variety of cleaning devices were also born on the market, but these mixed products, quality and inconsistent, did not achieve the purpose of thoroughly cleaning air conditioning pipeline. For this reason, this paper carries on the design discussion in view of the present automobile air conditioning inlet pipe cleaning way, as far as possible to develop and design a portable automobile air conditioning inlet pipe cleaning device to break through the bottleneck in this field [3].

The Necessity of Designing New Automobile Air Conditioning Cleaning Device
According to the National Bureau of Statistics, by the first half of 2017, China's car PARC had exceeded 200 million, reaching 205 million and growing. Such a large number of car ownership has spawned a larger aftermarket, and car service has become the biggest "cake" in the aftermarket. However, car air conditioners have to be cleaned. Whether it is a traditional car or a new energy vehicle, experienced owners will find that when the air conditioner is turned on after a long period of not using the air conditioner, the air vent will blow out a musty smell, which is due to the dust  [4].
Therefore, cleaning automobile air conditioning is a rigid demand [5]. According to the investigation and procurement in many aspects, the simple cleaning of the entire automobile air conditioner in the market has the disadvantage of "only spray detergent, no water cleaning", and there has never been a simple and portable way of washing air inlet pipe of air conditioner. This method of cleaning spray "cures the symptoms but not the root causes" and may cause secondary pollution due to the chemical composition of cleaning agent remaining in the air duct. Currently on the market is not a separate cleaning air conditioning water inlet pipe portable devices, research and development of this kind of simple and easy, portable water air intake pipe device is expected to can make up for the market blank, with comprehensive cleaning dust, the air duct to cleaner, more efficient, solved the existence "only spray cleaner, no water washing" shortcomings [6].

Research and Development Objectives and Technical Content
The purpose of the research and development is to provide a portable air conditioning inlet pipe cleaning device for automobile, so as to solve the problem of "only spray detergent, no water cleaning" proposed by the above technology, resulting in incomplete cleaning of the dirt inside the pipe, easy to cause damage to other parts of the automobile air conditioning, affecting the normal operation of the air conditioning.
Therefore, how to thoroughly clean the automobile air conditioning pipeline, so that the inner surface of the pipeline to restore its original state; After cleaning, a layer of chemical passivation film can be formed on the metal surface of the air conditioning pipeline to prevent or reduce the regeneration of dirt, so as to effectively protect and extend the normal work and life of the air conditioning system, which will be the purpose of our design [7].
To achieve the above objectives, the following technical solutions are provided in this design: A portable car air intake pipe cleaning device, including the barrel body, motor, fixed clasp and sprinkler head, described in the back of the barrel body set with a handle, and the front of the barrel body is installed into the wind window, as described in the bottom of the barrel body fitted with mobile wheel, and the top of the barrel body set into the mouth, and the side of the barrel body from top to bottom respectively fixed outlet and the discharging mouth, described in the motor installed in the top of the barrel body, and set a stirring rod on the bottom of the motor, as described in the interior of the barrel body set a baffle, and the top of the barrel body internal installation has high pressure fan, described the fixed button fixed on the side of the barrel body, And the interior of the fixing buckle is connected with each other through the fixing pipe and the connecting pipe. The top of the fixing pipe is installed with the sprayer and the side brush, and the water jet is installed on the top of the sprayer[8].The physical picture of r&d is as follows:   3 is A schematic diagram of the enlarged structure at part A of the utility model. Graph: 1, barrel body, 2, handle, 3, mobile wheel, 4, into the mouth, 5, outlet, 6, discharging mouth, 7, into the wind window, 8, motors, 9, stirring rod, and baffle 10, 11, and high pressure fan, 12, fixed clasp, 13, fixed tube,, connecting pipe, 14, 15, spray, 16, brush, 17, sealing ring, 18, sprinkler head.