Electric blankets

How electric blankets work

Electric blankets have been developed for more than a hundred years, and their working principle is also very simple. The heating wire is encapsulated in the blanket in the shape of a coiled snake. After the power is turned on, the heating wire generates heat. The heat is conducted to the body through the blanket, and the human body will feel it. very warm.

The main component of the electric blanket is the heating wire, which has two structures: single-layer spiral and double-layer spiral.

The single-layer spiral structure heating wire is less safe because it has no sensor and only has a heating function and cannot control the temperature. Moreover, if the two heating wires accidentally cross, the heat will be doubled, which will not only make the human body feel uncomfortable, but also It is easy to cause fire.

Moreover, the single-layer spiral structure is already an obsolete technology, so for the sake of comfort and safety, try not to buy this kind of electric blanket even if it is cheap.

The heating wire with double-layer spiral structure has actually been around for a long time. It is a very mature technology. The inner layer generates heat, and the outer layer is a safety detection and protection wire. In addition, the double-layer spiral heating wire has a unique layer of temperature-sensing wire. When it is abnormal, When the local high temperature of the electric blanket is caused by use, the temperature-sensitive protective wire will promptly transmit the signal to the controller. The controller will cut off the power supply based on the obtained signal to avoid fire accidents caused by the high temperature of the electric blanket surface.

Because sleeping on an electric blanket for a long time will make your mouth feel dry, and the weather itself in winter will be relatively dry, and some people feel that sleeping on an electric blanket is worried about leakage or electromagnetic radiation. Therefore, in order to cater to consumers, merchants have launched Water heating blankets are similar products to electric blankets.

The biggest difference between a plumbing blanket and an electric blanket is that the heating wire is sealed inside the electric blanket, while the water pipe is sealed inside the plumbing blanket. The principle of heat conduction is actually the same, both are heated by electricity, but the plumbing blanket heats water. .

Electromagnetic radiation is really an IQ tax. All electrical appliances will emit electromagnetic radiation, but as long as it meets national standards, there will be no problem. At least the electromagnetic radiation of mobile phones is much greater than that of electric blankets, and they are not used every day.

Dangers and myths about electric blankets

When you want to buy something, don’t look at the advantages. Look at the disadvantages first. If the disadvantages are acceptable or have no impact, then look at the advantages.

There are several disadvantages of electric blankets mentioned above. One is that they feel dry, the other is leakage or fire, and electromagnetic radiation. In addition, various reasons why electric blankets are bad include inability to wash and overheating. Burns, male spermicide, etc. I will explain these issues one by one here.

About drying. This is not a big problem. If you don’t feel anything, you can ignore it. For those who pay more attention to this point, there are water-heated blankets that can be used instead.

About leakage. Some low-quality products may indeed have leakage problems, so when purchasing, be sure to choose high-quality products that have passed the national 3C certification, and don’t skimp on the small.

It is easy to cause fire. This situation may indeed occur if the heater is left unattended for a long period of time. This problem mostly occurs with electric blankets that previously used single-layer spiral structure heating wires. Nowadays, those with temperature control and overheating protection functions will basically not have this problem.

As mentioned above about electromagnetic radiation, if you spend more money because of this, it is purely an IQ tax.

Not washable. This is what I said before. Technology is advancing and developing. If you have this need, just choose a washable electric blanket.

Overheating can cause burns. This is more common in the elderly or paralyzed people with limited mobility, as well as infants, so you must be careful if you use it for these people.

Male spermicide. This is also a cognitive issue. What affects sperm is not the electric blanket, but the temperature. The healthy temperature of sperm is 34-35.5. If the temperature exceeds 36, it will affect the activity of sperm. The maximum temperature of an electric blanket can reach about 55. High temperature will indeed affect it, but the most comfortable temperature for the human body should be around 24 to 25, so it actually has no effect. If you insist on setting the temperature all the way up, just pretend I didn’t tell you.

These are basically the main harms. In fact, after a hundred years of improvement, step by step, the existing problems have basically been solved. Others are basically just rumors. Love each other as a family. There are often similar rumors in the group, so I won’t go into details here.

Advantages of electric blankets and suitable people

In fact, everyone will have their own opinions on this point. In my opinion, the main advantages of electric blankets are that they are practical and cheap.

Practical

The positioning of electric blankets is actually very clear. They are for the comfort of lying in bed in winter or cold weather. In winter, even if it’s not cold when I wear clothes outside, I don’t want to feel cold as soon as I get in bed, and it’s easy to wake up in the middle of the night after going to bed. If you catch a cold, an electric blanket can solve these problems very well.

It doesn’t have that many functions, but it’s useful enough.

Cheap

Needless to say, the power of an electric blanket is low. It only costs one kilowatt hour if it is turned on one night. Air conditioners and electric heaters require at least ten kilowatt hours of electricity per night. If the electricity bill is 50 cents, it only costs 10 kilowatts if it is turned on every night for a month. A few yuan, if you switch to turning on the air conditioner or electric oil heater every night, it will cost at least ten times more.

Furthermore, high-power electrical appliances are not allowed in the dormitories during school hours. In many schools, the entire building loses power when a hair dryer is used. At this time, electric blankets are very practical. Everyone in the dormitory can use them, and there will be no tripping or power outage. The problem.

Suitable people for electric blankets

I think all friends who are afraid of the cold or have a cold body can choose it, especially in winter when their hands and feet are cold. No matter how thick the quilt is, it is not as effective as an electric blanket that is super warm when you get under the quilt.

For those who are afraid of the cold and are prone to cold hands and feet in winter, or even frostbite, don’t worry, it’s definitely suitable.

Written by: Nancy from FUJIREJA GROUP
The Exporter and Manufacturer of Heaters since 2003
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