Long-distance self-driving tour encounters the phone has no electricity, only the ordinary charger, or the business-ridden laptop is about to "strike" how to do? At this time many friends will complain, hey, hey is the silk, the car is also silk, the original factory is not equipped with 220V power. Indeed, currently 300,000 or less, whether it is a car or an SUV, is rarely equipped with a 220V power supply, which is to open the level between the models, but also for cost considerations. However, I believe many of my friends will say at this time, isn't there a car inverter? Yes, the car inverter can solve the problem of ordinary small household electrical appliances, but there are many ways to use the car inverter. Not necessarily everyone knows.
This article refers to the address: http://
We all know that no matter what grade of car, there will be one or more 12V power supplies. These 12V power supplies are usually used as power supplies for cigarette lighters or some devices such as driving recorders. However, because this power supply voltage is very low, and it is direct current, it is naturally not available for ordinary households to use 220V AC. At this time, you only need to spend more than one hundred yuan to buy a car inverter to solve the problem of small low-power appliances.
â— What is an inverter and what is its working principle?
Because this article is mainly to explain how the car inverter is used, and the precautions are mainly to help the novice to solve the daily use problem as the main purpose. Therefore, in terms of explaining the principle, we only make a basic introduction, and also ask some technical controllers to understand. Of course, if you are not interested in these electrical knowledge, it is a complete white, you can also jump to the next summary, directly into the topic.
Inverter is a kind of transformer that converts low-voltage DC power (usually the energy output from the battery) into high-voltage AC high-frequency energy (currently, our national AC is 220V, 50Hz sine wave). The basic working principle of the ordinary car inverter is: first convert the 12V low-voltage direct current in the car into high-voltage direct current of about 265V, and then convert the 265V direct current into 220V, 50Hz sine wave alternating current. The main internal components are inverter bridge, filter circuit, oscillator, control logic circuit and so on.
â—How to choose the inverter that suits you
At present, Auto Parts City, major e-commerce companies and Taobao merchants are filled with a large variety of inverter power supplies, which are tens of dollars cheaper, and hundreds or even thousands of dollars. It can carry a maximum power ranging from tens of watts to hundreds of watts. So which inverter should we use?
First of all, for ordinary home users, it is enough to buy an inverter with a maximum power limit of 200W. Because the insurance used by most family car 12V power supplies is less than or equal to 20A, that is to say, the maximum allowable 230W appliances, and some older models even allow the maximum current of only 10A, so the car is optional. Inverters can't be blind to high power. At present, most of the inverters connected to the 12V power supply can only be used for appliances under 150W.
For some outdoor workers, people who need high-power appliances can purchase inverters for directly connected batteries. This kind of inverter can be used by appliances of 500W or higher, and can drive small motors and some 1000W photographic softboxes.
As for the grade of the inverter, in addition to the traditional work materials and brands. They also have a big difference in performance. Currently, there are mainly inverters that output pure sine wave and quasi-sine wave on the market. Among them, the output of pure sine wave inverters is relatively high, basically starting from 500 yuan, and the mid-range goods are around 1000 yuan, but the performance is very stable. The quality of 220V AC output from some high-end goods is even higher than our daily routine. Use electricity. Inverters with square waves, such as quasi-sine waves or modified sine waves, can be guaranteed in most cases, and are a cost-effective inverter suitable for ordinary consumers.
As for what is a sine wave and a square wave, this is a relatively complicated physical concept. This article mainly shares the daily use of the inverter. As for how to distinguish the waveform of the inverter that is purchased by itself when purchasing, this is very simple, all the inverses. The specification output table on the transformer package will clearly indicate the continuous output power of the inverter sold, and output waveform and other data.
â—Uses and precautions for ordinary inverters
The maximum current that a car's 12V power fuse can withstand is not too high. Of course, there is no uniform standard. In most cases, each manufacturer will design the maximum allowable current to be 15A or 20A. There are also a small number of models, especially some older models, using 10A insurance. Therefore, when we use the inverter used in ordinary cars, we must know how much current the insurance of our car 12V car power supply allows. Do not blindly use high power, use electric appliances with excessive power, except for your car. There is no other benefit to the insurance inside.
In daily life, most of our digital products, such as mobile phones, cameras, computers, tablets, etc., require very low power, less than 100W, and can be used with confidence, but like some of the heating devices we use when driving by car. Usually the power is very high, such as hair dryer, hot fast, electric hot water bottle, etc., more than 1000W, it is absolutely impossible to connect the inverter inside the car.
â—Be careful when using, it is dangerous to operate by mistake
At this time, some friends may worry that if the inverter is used, if the current is too high, it will burn out the inverter and the 12V power supply in the car. Will it burn out other electrical appliances in the car or affect other electrical appliances? In terms of the use of electrical appliances in the car before the parallel circuit, so burned after the insurance will only affect the use of 12V power supply, will not affect other electrical appliances in the car.
â—Be sure to see the specifications of the products you purchased before using.
At present, the inverter of more than 100 yuan sold on the market is affected by the cost. The maximum number of 220V AC waves converted and output is not an absolutely pure sine wave, but a modified sine wave or quasi-sine wave (a kind of square wave improvement). ). The negative impact is that some appliances such as nickel-cadmium batteries, which require high charge and discharge, can have a very large impact. The electrical equipment that usually uses nickel-cadmium batteries has razors, rechargeable flashlights, mobile power supplies, etc., you must pay attention.
This is a commonplace thing, a lot of "young" cars, after the parking is turned off, the car 12V power supply will not automatically power off, of course, the consequences can be imagined. Because the inverter itself is also an electrical appliance that consumes power, if the 12V power supply is not powered after your car is turned off, the inverter itself will be used even if there is no other electrical appliance on the inverter after parking for a long time. The electricity in the battery is exhausted.
What about high-powered outdoor applications? How do you use inverters for high-power appliances? It’s not difficult, when you need to use high-power appliances (generally more than 150W) ), at this time, the dedicated inverter for high-power appliances can be directly connected to the car battery. When using it, you need to pay attention to how big the battery capacity is. Do not use the electricity in the battery to cause the vehicle to fire normally.
Circuit Breaker Rocker Switches
Circuit Breaker Rocker Switches Gray,Circuit Breaker Rocker Switches Black,Circuit Breaker Rocker Switches Black White,Circuit Breaker Rocker Switches Blue
Yang Guang Auli Electronic Appliances Co., Ltd. , https://www.ygpowerstrips.com