Electric blanket, also known as electric pad, electric blanket and electric mattress, is a kind of blanket that uses electric heating to keep warm. Winter can warm the bedding and provide comfortable sleeping conditions. Because of its simplicity, power saving, no noise and low price, it is suitable for families without heating in winter. Electric blanket is a kind of contact electric heater, which weaves or sews the electric heating elements of special flexible cables with standard insulation into a coiled snake-shaped blanket, and generates heat when electrified. It is mainly used to raise the temperature in the bed when people sleep, so as to achieve the purpose of heating. It can also be used for dehumidification of bedding. It has a history of more than 100 years, with low power consumption, adjustable temperature, convenient use and wide application. The new non-radiation electric blanket has won the national patent, and pregnant women, children and the elderly can use it with confidence.
Basic introduction
Contact electric heater. Soft-wire electric heating elements are woven or sewn in blankets in the shape of coiled snakes, and generate heat when electrified. Working principle and electric blanket can drive away cold and keep warm. Similar to electric blanket, there are hot compress blanket, electric mattress and electric pad.
Product advantage
Of course, electric blanket also has its advantages. It has a good protective effect on rheumatism patients and can reduce their chances of attack.
In addition, for the elderly or people with particularly weak constitution, electric blankets can also provide better care.
Product defect
1. Electric blankets with poor quality may leak electricity if they are not well maintained after long-term use, so it is best not to use them when sleeping.
2. The electric blanket will keep the capillaries dilated, and the water and salt in the body will be obviously lost, which is prone to dry mouth, sore throat, nostril bleeding, dry skin, constipation and other symptoms.
3. The electromagnetic radiation of electric blanket has a wide impact on human health. Under the action of electromagnetic radiation, there is often a phenomenon that polynuclear leukocytes, leukocytes and reticular leukocytes increase and lymphocytes decrease. In terms of blood biochemical indexes, cholesterol is high and cholinesterase activity is enhanced.
4. The electromagnetic radiation of electric blanket has a wide influence on human health. Electromagnetic radiation can cause continuous high-intensity microwave irradiation, which can accelerate people's heart rhythm, raise blood pressure, accelerate breathing, gasp and sweat. In severe cases, it can lead to convulsions and respiratory disorders until death.
5. Children are physically active. If you are used to the heat of electric blanket, your child's resistance to cold will decrease, and your immunity will also decrease, which will affect your growth and development. Therefore, it is not recommended for children to use electric blankets.
6. Children are physically active. If you are used to the heat of electric blanket, your child's resistance to cold will decrease, and your immunity will also decrease, which will affect your growth and development. Therefore, it is not recommended for children to use electric blankets.
7. The danger of electric blanket is that high temperature will reduce the quality of sleep and make you feel depressed after getting up the next day. In fact, sleeping on an electric blanket for a long time is not comfortable.
8. Electric blanket is mechanically heated, which will destroy the balance mechanism of human body, thus promoting blood pressure to rise.
base type
No signal: used for ordinary electric blanket. The electrothermal alloy wire used is linear, but most of them are spirally wound on the heat-resistant core wire and coated with a layer of heat-resistant resin.
With signal line: electric blanket is used for temperature control electric blanket. The wire core is made of glass fiber or polyester yarn, wrapped with flexible electrothermal alloy wire (or foil tape), covered with nylon thermal layer or special plastic thermal layer, and then wrapped with copper alloy signal wire around the thermal layer, and the outermost layer is covered with heat-resistant resin. When the temperature of any point of the electric blanket exceeds a predetermined value, the heat-sensitive layer on the corresponding electric heating wire changes from an insulator to a good conductor, the control circuit is turned on, and the electric blanket is turned off, thus achieving the purposes of temperature control and safety protection.
Adopt common electric blanket without signal line type electric heating element. If temperature control is to be realized, there are generally two kinds of temperature control elements: one is overheating safety thermostat, each electric blanket needs about 8 ~ 9, which is connected in series with electric heating elements for safety protection; The other is a constant temperature controller, which is located at the bedside or at hand to adjust the temperature. An electric blanket with an electric heating element with a signal line only needs a constant temperature controller.
health hazard
Susceptible diseases: the occurrence of allergic dermatitis, on the one hand, the electric blanket constantly dissipates heat when used, so that the moisture of human skin evaporates and dries; On the other hand, some people have allergic and itchy skin, or small papules of different sizes appear on their bodies, which can bleed, scab and peel after scratching. Most of these symptoms start from the back of the human body and then gradually spread to the whole body. It often makes people itch unbearable, sleepless all night, affecting rest and work.
Baby use
Infants are dehydrated because they are in the period of growth and development. According to their weight, their water intake should be higher than that of adults. However, if the electric blanket is overheated and used for a long time, the child will lose too much water, resulting in dehydration symptoms such as dry throat mucosa, hoarseness and irritability.
According to the experience of many families using electric blankets, there are two main unsafe factors of electric blankets: one is that the electric blankets are overheated due to improper use, which leads to combustion accidents such as sparks and arcs; One is the electric shock accident caused by poor insulation or damage of electric blanket.
counteraction
Electric blanket is an ideal heating product for families in winter. But electric blankets are not suitable for everyone, and some people will have adverse reactions after using them.
When people use electric blankets, even if the insulation resistance is completely qualified, there will be induced voltage acting on the human body. Although this current is small, it is potentially dangerous to the elderly, the weak or the heart patients, infants and young children, and pregnant women sleeping on electric blankets may also lead to fetal malformation. These people can use hot water bottles or air conditioners to keep warm in winter, and it is best not to use electric blankets. Stroke patients, especially the elderly, are prone to harm because their skin feels cold and hot slowly and the electric blanket is overheated.
Cause infertility
When the electric blanket is turned on, it will produce a very low electromagnetic field, which will have some adverse effects on female endocrine and seriously lead to infertility.
Male testicles can only ensure sperm vitality at low temperature. The heat generated by electric blanket will have a bad effect on male seminal vesicle for a long time, which will reduce male sperm or make sperm vitality weak.
Decreased resistance
Children's physical vitality is relatively large. As the saying goes, "There are three pots of fire on their buttocks", and they are not afraid of cooling their beds. If they get used to the heat of electric blankets, they will reduce their resistance to cold, reduce their immunity and affect their growth and development. Not recommended. If you are really afraid of their cold, you can add a towel quilt to the quilt. The soft surface can reduce the cold feeling when the skin touches the quilt.
be down in spirits
Sleeping on an electric blanket for a long time is actually uncomfortable. If the temperature is too high, it will reduce the quality of sleep and make you feel depressed after getting up the next day.
If the electric blanket is not well maintained for a long time, it may leak electricity (of course, only a few), so it is best not to use it when sleeping.