In the early 1980s, the power was tight and the people’s lives were not very rich. In the winter, the northern residents mostly relied on central heating facilities, but in the days before and after heating, they faced the increasing cooling in the living room. Silently endurance; while the southern residents, especially the residents of the south of the Yellow River and the Yangtze River, there is neither centralized heating facilities, no fire subsidies and sufficient heating for coal supply, bitter cold water, humid cold air, making people Really feel the long and difficult winter, individual "smart people", stealing electric stoves to heat often lead to the entire residential building insurance burned out of power, attracting a buzz, but also Face heavy punishment after the surprise inspection, difficult years Leave people with unforgettable memories.
In the mid-1980s, with the improvement of the national power environment and the continuous improvement of the living standards of residents, electric heaters began to gradually enter the ordinary citizens' families, bringing a warm warmth to the general public during the winter season.
Most of the early heaters used resistance wires as heating elements, which were simple and unsafe. They occurred when electric shocks and fire accidents occurred. These heaters were completely eliminated with the birth of far-infrared quartz tube heaters in the late 1980s. .
1. Far-infrared quartz tube heaters Far-infrared quartz tube heaters use far-infrared radiation heating technology. Because far-infrared is more easily absorbed by radiation objects than other infrared rays, it has strong penetrating power and can make the human body directly feel the heat. It is warm when it is turned on. Therefore, it is not limited by the space environment. Even in places with poor sealing conditions, large space, dark and humid places, or even outdoor use, as long as the distance is appropriate, it can achieve better heating effect, but the quartz tube is warmed. The shortcomings of red glare and body sensation, combined with short life, have been gradually improved into halogen tube far-infrared heaters. The halogen tube is a sealed integrated component, and the tube is filled with a halogen gas, which can effectively ensure the life of the internal heating wire. At the same time, it develops a bright electric heater. The Feng Keping is stronger than the quartz tube, and the radiant heat is larger. Set a lattice cooling net in front of the machine to effectively reduce the reflection brightness, make the transmitted light soft, moderate radiation, the biggest advantage of far-infrared heater is its moderate price, tens of hundreds of yuan price, deeply The market has been recognized for more than a decade, and under the strong impact of new series of electric heaters, PTC heaters, etc., it has always sold well and showed strong vitality.
The use of far-infrared heaters must be kept away from flammable, explosive, and easily discolored objects. It is also strictly forbidden to put clothes, baby diapers, etc. directly on the body for baking, which is easy to cause fire; elderly people and children who are inconvenient to move When using the room, you must remove all objects within one meter before the machine, and you should not take it lightly. At the same time, the far-infrared heater is not suitable for use in entertainment venues such as karaoke rooms, because people who drink alcohol often lose their sense of reason and cause electric heating to ignite. Such accidents have occurred in a city in Henan province caused by items such as sofas.
In the early 1990s, the oil-filled electric heater, the electric oil heater, was on the market. It was catching up with the rise of the wealthy Chinese people. The shape of the electric oil heater is similar to that of traditional heating. Decoration, and can be moved at will, combined with simple operation and no open flame, no radiation, no noise, self-control temperature, etc., received the attention of the market, and quickly became the leading product in the electric heating market. The electric heating oil adopts the electric heating tube as the heating element, and the heating tube is located at the bottom of the oil-sealed closed casing, and the special heat-conducting oil is poured into the housing. When the electric current is working, the heat-conducting oil around the heating tube is heated, and the heat-dissipating fins along the oil passage will be The heat is dissipated into the space, the heat transfer oil does not need to be replaced, added, and the maintenance is simple and convenient to use, but the high price is an obstacle that is difficult to completely dominate the electric heating market.
The electric oil heater is strictly forbidden to be inverted or put down. The internal electric heating tube will be exposed to the oil surface and will be damaged or leaked. It is not allowed to completely cover the surface of the oil to be baked. When the heat dissipation hole is severely blocked, it may cause The body bursts and the hot oil splashes and burns the human body; when there is a need for baking, you can choose the electric oil heater with a hanger or a homemade baking rack.
In the mid-1990s, the PTC heater was introduced to the market. It uses the PTC ceramic monsoon trend to talk about the porcelain heating body. It has excellent self-regulating and energy-saving characteristics, extremely low thermal inertia and no open flame, no radiation safety, and super strong. The anti-vibration and other advantages have led to a revolution in the field of electric heating, but the initial rise of the market due to stability, attenuation, etc., has come to a quiet. A few years later, with the improvement and efforts of the scientific and technical personnel, the PTC ceramic heating element was further improved, and its performance was confirmed and widely used in the air-conditioning. In the year of 1997, it was gradually accepted by people with electric heaters. In 1998 and 1999, the market was popular due to the joining of many famous brands such as Gree, Midea and Samp, and it quickly formed halls and bathrooms. , Taiwan's multi-purpose, air-conditioning wall-type and other series of varieties, has become a hot product that consumers are vying to buy, and most of them will come to the top, dominate the world.
The biggest feature of PTC heaters is rapid heating and comfortable body, because it uses forced convection heat conduction, and the forced convection coefficient is several times that of traditional natural convection, which makes the volume and weight of PTC heaters greatly reduced. It can be done only about 1/5 of the electric oil heater. Its shortcoming is that it must clean the filter at the air inlet every 15 days or so. If it is not clean for a long time, it will cause poor airflow and affect the heating effect. It will also cause the internal thermal circuit breaker to operate. The thermal circuit breaker is a disposable component. After the circuit is broken, it must be sent to the maintenance point for replacement, which is inconvenient for consumers. PTC heaters are not suitable for use in dirty, dusty areas.
In addition, most of the PTC heaters used in bathrooms are waterproof and drip-proof. This often gives consumers a misunderstanding that there is no danger of electric shock when used in the bathroom. In fact, the so-called waterproof and anti-drip design is just water from above the body. When it is drenched, it can be effectively waterproof, but for some consumers who are accustomed to taking the shower head and washing it all over, if the water flows from the lower hot air outlet into the body and contacts the PTC heating element, it may cause an electric shock. Therefore, PTC heaters for bathrooms must be wall-mounted and properly kept away from water.
At the end of the twentieth century, when various electric heaters competed, the air-conditioner fan was quietly available. Taking the Gree brand DF168 type air-conditioning fan as an example, it selected long-life nickel-chromium heating elements to provide strong hot air in winter. Special ice storage box makes the cold air blown out in summer 3 5*C lower than room temperature. It adopts unique rolling water curtain cleaning function and humidifying method to remove dust, odor and purify the air, so that the blown wind is fresh and moist, and care for the skin. It effectively eliminates the "air conditioning disease" worry; it is a unique four-machine integrated, can be used as a heater, air cooler, air freshener, air humidifier, one input, suitable for all seasons. The expansion of the function marks the limitation of the seasonal heating products of the heating and cooling air-conditioning fan. It enters the ranks of the applicable electric appliances in the four seasons. Its appearance has not only reduced the burden of repeated investment of consumers in different seasons, but also eliminated the collection and maintenance of seasonal products after use. The troubles have formed a unique and beautiful cross-century landscape in the electric heating market.
However, it should be emphasized that the heating and cooling air-conditioning fan does not have a compressor after all. It does not require Freon, and it is impossible to achieve true refrigeration. It only uses the direct evaporation of water and ice to reduce the temperature of a part of the air. The cooling effect is very limited. At the same time, it is not suitable for use in wet areas and rheumatism patients. Only when it is combined with a dehumidifier, can it be applied to the rainy north and the humid south, which is its future development direction.
Ceramic steel heaters are very likely to become the new favorite of the market. Its core part is the joint ceramic steel electric heating sheet.
The joint ceramic steel electric heating piece is the thinnest heating element in the world. It is the permanent fusion of ceramic on the surface of high-grade, thin steel sheet at 840C high temperature. After cutting according to the corresponding size, it adopts the latest development of printing technology. The resistive circuit is printed on the surface of the ceramic steel sheet, and the circuit joint is fixed by a pure silver electrode paste with excellent electrical conductivity, and then the ceramic is melted and covered on the surface to form a protective layer at a high temperature, and the surface is smooth and non-porous, anti-wear and It has excellent corrosiveness and strong impact resistance. It can resist thermal shock caused by sudden temperature changes, resist acid, alkali and various solvent erosion, and resist UV infiltration. It is a scientific, advanced and durable new electric heating element.
In the winter, people like to stay away from the darkness and stay under the warmth of the sun. In fact, at the time of the sun and the darkness, the temperature of the air is the same. The comfort and warmth we feel comes from the infrared rays in the solar electromagnetic spectrum. The thermal radiation generated by light waves, and the ceramic steel electric heater uses the principle of invisible heat radiation and natural convection to heat the space. The invisible heat radiation emitted by it is between 35 microns and the scientific principle. In other words, heat transfer in this wavelength range is the most comfortable.
Ceramic electric heaters are popular in the European and American markets due to their elegant shape, warm and comfortable, simple operation and easy maintenance.
With the continuous digestion of imported technologies and the further improvement of people's living standards, ceramic electric heating films will gradually transition to large-scale music decorative paintings, and in the future, you will walk into a new and fashionable life.
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