The scientific name of the car wiper is windshield wiper, which refers to a sheet-type structure installed in front of the windshield. It is composed of an electric motor, a reducer, a four-bar linkage, a wiper arm spindle, a wiper blade assembly, etc. Its main function is to sweep away rain, snow and dust on the windshield that obstructs vision.

The rear wiper is the wiper of the rear windshield of the car. The rear wiper is mostly equipped on SUVs, MPVs, SUVs, hatchbacks and some hatchbacks. In addition to cars, other means of transportation are also equipped with wipers, such as trains and trams. Some engineering machinery, such as cranes, are also equipped with car wipers.

Car wipers play a vital role in bad weather such as rainy or foggy days to ensure that the driver’s vision is clear. According to different structures and functions, car wiper can be divided into many types.

1. According to the structure of the car wiper

There are mainly two types of bone wipers and boneless wipers. The difference between them lies mainly in the structure and working principle, and the resulting product prices are also different.

A bone wiper refers to a wiper whose keel can be seen from the outside. Its working principle is to press the wiper blade against the glass through multiple support points on the frame, so that the pressure on the support points on the wiper blade is even. This structure of wiper can provide better wiping effect, especially in rainy and snowy weather. During use, due to the average pressure of each support point of the bone wiper and the uniform wear, friction noise is easily generated between the wiper blade and the glass, and it is not easy to scrape away impurities.

Boneless wipers are not really without keels, but the keel is wrapped inside by a rubber strip and cannot be seen by people. Boneless wipers rely on a whole guide strip to disperse the pressure, so that the force of each part of the wiper blade is even, and it fits more closely with the glass, which can reduce the generation of water marks and scratches, and achieve better wiping effect.

2. Classification by wiper working mode

According to different wiping methods, wipers can be divided into traditional intermittent wipers and raindrop sensor wipers.

Traditional intermittent wipers are the most common type, and the driver makes adjustments according to the rain and visibility. It controls the operation of the motor to achieve intermittent wiping of the wiper blades, and can adjust the wiping speed according to the vehicle speed and the amount of rain.

Inductive automatic wipers are a more intelligent type, and are currently used in luxury cars. It senses the size and density of raindrops through built-in sensors, and automatically adjusts the wiping speed and frequency of the wiper blades, providing drivers with a more convenient and comfortable driving experience. With the advancement of technology, more and more models are equipped with rain-sensing automatic wipers. This new type of wiper can greatly improve the convenience and safety of driving in rainy days. It was originally only equipped on high-end cars. Due to the surge in global car users and the rapid development of new energy vehicles in recent years, it is currently developing from high-end cars to mid-range cars.

3. Classification by car wiper working direction

There are two common wiper working directions, one is parallel wipers (i.e., left and right synchronous wiping), and the other is split wipers (i.e., left and right cross wiping).

The biggest feature of parallel wipers is that they can use slightly shorter wiper strips (the wipers on the co-pilot seat are relatively short), and can also be equipped with slightly smaller wiper motors, so most of these wipers are more economical. The disadvantage of parallel wipers is that the co-pilot wipers are short, so when wiping, the upper right corner of the co-pilot seat is more likely to have a blind spot.

Compared with ordinary wipers, the connecting rod mechanism of split wipers is longer than that of parallel wipers, and a larger water flow groove space is required for installation, so the cost is generally higher than that of parallel wipers. In addition, the co-pilot seat coverage area of ​​split wipers is also larger than that of parallel wipers, and there is relatively less blind spot. However, split wipers are more likely to have water hanging in the middle of the front windshield, affecting the line of sight.

Although the cost of split wipers is relatively high, it does not mean that parallel wipers are all “cheap goods” and split wipers are high-end goods. Whether it is a parallel wiper or a split wiper, it is required to meet the following requirements: 98% car wiper coverage in front of the driver and 80% wiper coverage in front of the co-pilot. As for which wiper method to choose, it has a lot to do with the shape of the front windshield. On the premise of meeting the coverage rate, the car manufacturer can decide which wiper method to use based on the design and positioning of its own car model and the use environment of the vehicle.

4. Specifications and dimensions of car wiper

Comparison of Novoflow car wiper inch units and metric units:

10″–250mm

12″–300mm

14″–350mm

16″–400mm

18″–450mm

20″–500mm

21″–525mm

22″–550mm

24″–600mm

26″–650mm
32″–800mm
38”–1000mm

5. Tips on car wiper maintenance

1. When using wipers to remove dust from the windshield on sunny days, be sure to spray glass water and do not wipe dry.

2. If there are other stubborn and hard dirt on the glass, they should be cleaned manually. These things can easily damage the wiper blades, resulting in poor wiper cleaning. In serious cases, the wiper motor will also be affected.

3. When lifting the wiper blades for car washing and daily cleaning, hold the “back” of the wiper blades and gently return them when putting them down. Do not snap the wiper blades back.

4. When using in winter, you should first use an ice shovel to clean the ice on the windshield surface to avoid increasing the burden on the wipers.

5. If the dirt on the wipers is difficult to clean, If there is a problem with the wiper itself, it is best to find a professional to repair it as soon as possible.

6. A few knowledge points about wiper replacement

1. The original car has bone wipers, can they be replaced with boneless ones?

If the original car has bone wipers, it can be replaced with boneless wipers. But it should be noted that this depends on the pressure of the wiper bracket of the car model. For example, the wiper bracket pressure of some Japanese cars is relatively low. If boneless wipers are used, the wipers may not be clear for a long time.

If this happens, it is recommended to use traditional bone wipers; if the bracket pressure is high, the wiper rubber strip can be pressed against the glass surface, so that the effect of boneless wipers can be better reflected.

2. Is it necessary to replace the original brand wipers?

When replacing wipers, it is not necessary to use the original wiper brand, as long as the size and interface are suitable for your car model. In addition, car owners can also buy the same brand products (not the same products as the original car, but the same brand products) in non-4S store channels, but these brand products will not affect the daily use of the car.

3. Why do some car owners put the car wipers upright?

In the hot summer season, or on days with heavy snow, we often see that the wipers of many vehicles are erected. What is going on? It turns out that at noon in midsummer, the surface temperature of the front windshield of the car can reach more than 50 degrees, If the wipers are exposed to the sun for a long time, the wiper rubber may be deformed. In the cold winter, standing the wipers upright can prevent the wipers from freezing on the front windshield.

4. Is the method of grinding the car wipers reliable?

The method of refurbishing the wipers by grinding the wipers is reliable, but it requires a lot of skill. If the grinding is too violent or the sandpaper type is wrong, it is easy to deform the shape and blade surface of the rubber strip, which will not be worth the loss.

The steps of refurbishment are very simple. First, remove the wiper and clean it. Then fold the fine sandpaper in half and clamp the rubber strip. Then wet the surface of the rubber strip with water, and rub it from top to bottom as gently as possible with fine sandpaper three or four times. Finally, rinse the polished particles and install them back on the wiper arm.

5. Improper selection of glass cleaning agent will accelerate the aging of car wipers

Car glass water is a cleaning product used to clean car windshields, side windows and rearview mirrors. It is composed of water, diluent, surfactant, antifreeze and other chemical components, which can effectively remove dust, stains and dirt on the surface of the windshield, keep the windshield clean and transparent, and improve driving safety. It is recommended to use a special vehicle cleaning agent, because improper selection will damage your car windshield, accelerate the aging of the car wiper, reduce durability, and also increase maintenance costs.

6. How to solve the problem of abnormal noise and jumping of the car wiper?

Abnormal noise of the wiper may be caused by the following four reasons: First, the rubber strip of the wiper is aging; second, there is dirt accumulation on the rubber strip edge of the wiper; third, there is dirt on the surface of the front windshield; fourth, the temperature is too low and the rubber strip becomes hard; fifth, the wiper is frequently used under abnormal conditions (such as dry scraping).

If the car wiper makes abnormal noise, the owner can solve it by “applying toothpaste”. The specific steps are as follows: ① Squeeze out the toothpaste strip and apply it to a corner of the wet towel, ② repeatedly wipe the rubber strip edge, ③ wipe the black dirt wiped out with a towel.

Summary

As for the car wipers, they are consumable parts. Basically, when the wipers are not scraped cleanly or make abnormal noises, they need to be cleaned, refurbished or replaced directly. When we buy car wipers, we can choose according to the size and the corresponding interface. In addition, we don’t have to pursue boneless wipers. If the original car has bone wipers, when replacing boneless wipers, we should also pay attention to the bracket pressure of the original car to avoid the situation that they are not suitable after replacement.

While providing professional car wipers, we also provide customers with professional car cleaning and care products, which can solve the problem of car cleaning in one stop, including car interior cleaning, car exterior cleaning, car windshield cleaning, car wheel cleaning, etc. If you want to know more, you can refer to our wowiper brand.