Taosha river-cooling and heat relief fan

How to buy a proper fan

1. The first dimension for purchasing an electric fan: locate the fan category based on your needs

 

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2. the second dimension of the electric fan: Look at the core components of the electric fan: the motor of the electric fan is the most important to consumers as a heart component. The life of the motor of an electric fan directly determines the service life of the electric fan, therefore, the core task of selecting an electric fan is to select a motor and identify the advantages and disadvantages of the motor.

The general method is:

(1) Watch the motor Material: The core component of the motor is the movement, there are many kinds of movement materials, and the most used materials on the market are: copper movement, copper clad aluminum movement and aluminum wire movement. Pure Copper movement has the highest magnetic conductivity, and the attenuation coefficient is small, the longest life, the most expensive; secondly, copper clad aluminum, and aluminum wire motor.

The best way to identify the movement material is to use a metal measuring instrument, but it is difficult to achieve it in general. The most common soil method is: a look! Check the movement color, disassemble the motor, and check the movement color. identify whether the movement is an aluminum-wire movement by color! Wipe the surface of the movement, copper clad aluminum movement repeatedly wipe the surface of the copper will fall, the layer of silver after the surface drops is copper clad aluminum movement motor; three cores! Find the same type of motor and remove the motor housing. The weight of the copper motor is greater than that of the aluminum wire motor and copper clad aluminum motor.

 

 

(2) capacitor configuration: as an important component of the fan, the capacitor can reflect the advantages and disadvantages of the motor from the side. Generally, the smaller the capacitance value of the household fan, the smaller the starting current of the motor, the more energy-saving the motor, the more stable the performance of the motor. In addition, the higher the rated voltage value, the stronger the voltage impact resistance of the capacitor, and the more stable the motor performance.

 

 

(3) view the thickness of motor silicon steel sheet: It is difficult to test the advantages and disadvantages of silicon steel sheet. Different materials have different effects. However, the simplest way to identify a consumer is to check the thickness of the silicon steel sheet. Theoretically, the larger the thickness, the better the motor, and the higher the cost. The specifications of motor Silicon Steel Sheet vary with product categories. Generally, 13mm (26 stacks), 14mm (28 stacks), and 16mm (32 stacks) are available), 18mm (36 stacks), 22mm (48 stacks), etc. Generally 13mm ~ More than 16mm are used for paging fans, and more than 18mm are used for floor fans.

 

3. Third dimension for purchasing an electric fan: view the energy efficiency level of the electric fan

 

(1) to see whether there is energy efficiency logo: In the electric fan Implementation Standard GB12021.9-2008, energy efficiency as the core indicators of the electric fan is highly valued by the National Quality Inspection Bureau, and strong requirements: no energy efficiency electric fans are not allowed to go public! Therefore, you must pay attention to the energy efficiency labels when purchasing products. Generally, no energy efficiency certification is implemented for miscellaneous brands. All brands of electric fans will post the "China Energy Efficiency logo!

(2) energy efficiency level: the higher the energy efficiency level, the greater the energy efficiency value, and the more energy-saving and environmental protection. The power efficiency of an electric fan ranges from high to low. It can be divided into 1-level energy efficiency, 2-level energy efficiency, and 3-level energy efficiency. Level 1 is the most energy-saving, level 2 is the second, and level 3 is the worst.

 

(3) view the Energy Efficiency Value and power size: the power efficiency of an electric fan is related to the motor specifications, Fan categories, and power. Generally, the higher the rated input power, the higher the energy efficiency value. When identifying the energy efficiency, check the type and model; the second, the rated input power; and the third, the Energy Efficiency Value. The larger the Energy Efficiency Value of a fan with the same specifications and power, the better the performance of the fan.

 

4. The fourth dimension for purchasing an electric fan: view the function configuration of the electric fan

 

The fan is driven by a motor to rotate the fan blade, resulting in wind. Therefore, the motor is called the heart component, and the wind blade is called the wing, which plays a huge role in the use of electric fans.

(1) Check the fan blade diameter and blade twist angle: the larger the diameter of the blade, the larger the air volume generated by the blade cutting. The larger the twist angle, the harder the wind cut, the wind hardness is also large. The more the number of wind blades, the more intensive the wind, the more gentle the wind effect, and the more stable the air volume. Generally, the diameter of the five wind leaves is larger than that of the three wind leaves, the Twist Angle of the three blades is larger than that of the five blades. Therefore, the air volume of the five blades is large, the effect is soft, the wind speed of the three blades is large, and the effect is hard.

 

 

(2) identify the quality of the Fan Blade Material: The fan blade material is pp new materials, as new materials and return materials. First of all, you must learn to identify whether the returned materials are new materials. The returned materials are made from injection molding waste or pre-processed materials. They have a big odor, are not environmentally friendly, and are cost-effective. They become brittle under the influence of cold and hot weather, fragile and environmentally friendly. The most direct way to identify whether the returned materials are environmentally friendly materials is: Check whether there is a recycling logo "" for the wind leaves. If there is a recycling logo, it indicates that the materials are new environmentally friendly materials, if it is not stated that the blade is made up of the return material, there is also a simple visual method: because of the high purity of the new material, the transparency is relatively large, the return material is composed of impurities, so the transparency is low, you can view the other side from one side !.

 

 

(3) Select the control mode: The current electric fan is generally divided into mechanical control and remote control. Remote Control fan is easy to use and can be remotely controlled. Timing, wind (common wind, sleep wind, natural wind), shaking head, and other additional functions (such as negative ion) are configured at the same time ), manual operation is required for machinery, and relatively simple functions are configured. At the same time, there is only one category of wind (common wind) options.

 

 

(4) Compare the electric fan's head: the electric fan's head determines the fan's air supply range. Generally, an electric fan shakes his head by means of manual pitching, shaking his head on the left and right, shaking his head at 360 degrees, o-words shaking his head, and eight-character shaking his head. The eight-character shaking his head is driven by a dual Connection Rod and a dual motor/Three-power, generally, it is a high-end server with relatively decent sending, but the more features, the more likely it will be! The most practical is the ordinary head fan.

1. Shake your head: select as needed. If you are using a wide range of people, you should first choose the Left and Right shake function; if you need to adjust the air conditioning temperature, to promote the air circulation should choose 360 degrees or O words shake his head.

 

 

Second, let's see how to shake the head: The left and right ways of shaking the head are plug-in type and electronic type, mechanical floor fan/table fan generally uses the gear box plug-in type, the turn Fan uses the switch control; the remote control floor fan/table fan adopts synchronous motor and electronic type. The vertical and vertical flags are divided into one light pattern and the locking mother type;

 

 

 

3. Shake head angle and stability: Generally, the two important indicators of the shake head detection are the rotation frequency and rotation angle. National Standard Requirements: 4≤ ≦, ≥, so we can know that the conversion frequency is not larger, the better, or smaller, the better, and the larger the conversion angle, the better. Generally, the left and right sides of the brand floor fan shake at 60 ~ 90 degrees, the pitch angle is 30 degrees; some professional brands can shake their heads to 120 degrees, and the pitch angle is nearly 45 degrees.

(5) Timing comparison of electric fans: Check whether there is a timing or the timing length from the product "specification parameters" or "Product Introduction". The longer the timing, the higher the convenience of use, pay attention to non-timed fan purchase;

 

 

(6) Comparison of basic product parameters:

A. Product of the same specification has a higher weight than gross weight/net weight. The higher the weight, the more elegant the product materials are. The smaller the weight, the less plastic parts or other hardware.

 

 

B. Product height and lifting height in the same way: the product height and adjustable height indicate the basic configuration of the product in a certain sense. However, different brands and products of different categories have different heights. The higher the height, the higher the convenience of the use process.

 

 

5. The fifth dimension for purchasing an electric fan: view the product evaluation quantity and favorable rating

:

The higher the number of comments, the higher the popularity of the product. The higher the favorable rating, the better the number of comments. Rating, as a reference for purchasing experience, is an effective channel to avoid buying risks!

For example, for products of the same type, the price is the same, and the high-rating products are given priority. When you enter the product evaluation, the favorable rate of the products determines the purchase direction. When purchasing a product, the customer must consider both the evaluation quantity and the positive rate.

 

 

6. The sixth dimension of purchasing an electric fan: view the professionalism and scale of the brand

:

A brand is a specialized brand. The bigger the brand, the better it is. First, we need to have a deep understanding of what the pillar products of this brand are, and the selection of professional brands is rational. Second, we need to know the brand's after-sales service outlets and the degree of perfection; third, you need to learn more about the brand from the Internet.

 

Working Principle

 

The main component of an electric fan is an AC motor. The working principle is: the electric coil rotates by force in the magnetic field. The conversion form of energy is: electric energy is mainly converted into mechanical energy, and because the coil has resistance, it is inevitable that some electric energy should be converted into heat energy.

 

When the electric fan is working (assuming there is no heat transfer between the room and the outside), the temperature in the room not only does not decrease, but increases. Let's take a look at the reason for the temperature rise: when the electric fan is working, because there is a current through the coil of the electric fan, the wire has a resistance, so it will inevitably generate external heat, therefore, the temperature increases. But why do people feel cool? Because the body surface has a large amount of sweat, when the electric fan is working, the indoor air will flow, so it can promote the rapid evaporation of sweat, combined with "evaporation needs to absorb

 

A lot of heat ", so people will feel cool.

 

Use and Maintenance of electric fans

1. Read the instruction manual carefully before use to fully understand the structure, performance, installation, use and maintenance methods and precautions of the fan.

 

2. the desktop and floor-mounted fan must use a three-core plug and socket with a safe grounding wire. The ceiling fan should be installed in a high ceiling, so that no grounding wire can be installed.

 

3. The fan blade is an important component. It must be protected to prevent deformation during installation, disassembly, scrubbing, or use.

 

4. When you operate functions such as switches, buttons, and knob, you cannot press the buttons too quickly or press them at the same time.

 

5. The speed control knob of the ceiling fan should be slowly rotated in sequence and should not be rotated between the gears. Otherwise, it is easy to make the ceiling fan fever and machine burning.

 

6. The oil stains or ash of the electric fan should be cleared in time. It cannot be wiped with gasoline or a strong alkali solution to avoid damage to the functions of surface paint parts.

 

7. Do not continue to use the power supply when the fan is hot, abnormal, shake his head, slow speed, or other faults occur during use. Cut off the power supply for repair in time.

 

8. Remove the oil stains and ash on the surface before the fan is collected, and clean the fan with a dry soft cloth. Then wrap the fan with kraft paper or a clean cloth. The storage location should be dry and ventilated to avoid extrusion.

 

 

Electric Fan favorites

 

When the weather gets cooler, it's time to add a summer fan to your favorites. Note the following before adding an electric fan.

 

Correctly disassemble parts according to fan line drawing requirements. During the operation, open the mesh clamp, loosen the Fastening Bolts on the wind leaf sleeve, and remove the blades. Unscrew the four screws of the fixed mesh cover, remove the gasket and the rear mesh cover, and restore the screw cap.

 

Maintain the plating parts. First, wipe the dust stains and water vapor on the plated parts with a soft cloth, and then apply a thin layer of oil to facilitate protection. Please note that you must wipe it clean before you install the oil. Otherwise, the moisture will not evaporate after the oil is installed, which may cause corrosion dust points, but will lead to rust of the plated parts.

 

Maintain the paint parts. Clean with a soft cloth. If the stains on the top are not easy to wipe off, use soap water containing less alkali to scrub, or use a small amount of kerosene to wipe, then clean and dry. After removing the blade, wrap it with soft paper and place it between the front and back netmask to avoid deformation of the blade angle.

 

Maintain other parts. The power cord cannot be exposed to harmful gases, such as mosquito coils and gas. Otherwise, the color may change or even cause accidents. The motor bearing is a copper bearing. To prevent oil loss, you can inject a proper amount of oil into the oil injection hole. Place the knob at the beginning of the head to avoid non-compression.

 

In addition, before placing the fan head in plastic bags and cartons, it is best to run for 10 minutes without load, wait until the fan head is completely cooled before packaging, so that the motor is dry during the winter.

 

 

Power-saving mode for electric fans

 

First, choose products of excellent quality when purchasing. Due to the low technical barrier of the fan industry and uneven products on the market, we must select well-known brands to ensure quality.

 

Second, because the fan can directly convert power into kinetic energy, the power consumption is very low, the maximum power is only 60 W, equivalent to the power consumption of ordinary Lighting Lamp, so from the perspective of energy conservation, fan Use is undoubtedly the best choice in the Midsummer season. While the fan is used together with the air conditioner, the air conditioner temperature is set to 26 ℃ ~ 28 ℃, saving power and money.

 

Third, as far as the use of the fan itself is concerned, the electric power of the fan with a large fan blade is usually large, and the power consumption is also large. the power consumption of the Fan is proportional to the speed of the fan blade, such as 400mm fan, the power consumption for fast transmission is 60 W, and the power consumption for slow transmission is only 40 W. The power consumption for the same electric fan is 40% different from that for the slowest transmission, after cooling down, you can use slow blocks to reduce the power consumption of electric fans. When the air volume meets the usage requirements, try to use the moderate or slow gear.

 

Fourth, when using the fan, it is best to place it next to the door and window to facilitate air circulation, improve the cooling effect, shorten the use time, and reduce power consumption.

 

Finally, pay attention to the maintenance of the fan at ordinary times to maintain its good performance and avoid deformation and vibration of the Wind Blade. In this way, it is also conducive to saving energy to a certain extent.

 

 

Purchase Process

According to the ranking of sales volume on a certain treasure, it is found that the fans have the most popular tower fans and floor fans. Baidu queries the tower fans for more gentle and even wind power, energy-saving, beautiful appearance, no harm, and suitable for the elderly and children, according to the sales volume and the buyer's rating, we got two mainstream tower fans, namely, Emet and shanhu, which provide better performance.

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