- Home >> Solution >> Appliances >> cookers
Dishwasher Solution
Dishwashers are equipment for automatically cleaning tableware. They can be used to clean tableware such as bowls, chopsticks, plates, knives, forks, and pots. According to the installation method, they can be divided into two types: embedded and independent. Both domestic and commercial. Commercial dishwashers are generally used in places with a large number of people, such as restaurants, hotels, canteens of government agencies, etc., which can reduce the labor intensity of dishwashing workers, and at the same time can improve work efficiency and cleaning rate. At present, in European and American countries, the penetration rate of household dishwashers is very high, and even a considerable number of households have two dishwashers at the same time. At present, the domestic market of dishwashers in China is gradually opening up. In order to save time, many people choose to install dishwashers. Combined with the rapid growth of my country's overall economy and the intelligent experience brought by consumer electronics, the development prospects of dishwashers are huge.
1.The working principle of the dishwasher
The traditional dishwasher uses a motor to drive the washing pump so that the washing liquid is sprayed from the spray arm under a certain pressure to form a dense hot water flow; On the tableware, spray rinse and brush the tableware. The jet of water acts as a mechanical rinse on the surface of the dish, the special detergent for the dishwasher acts as a chemical cleanser on the surface of the dish, and the hot water plays the role of soaking and softening. The combination of the three can decompose and shed the oil stains and residual stains on the surface of the dishes, so as to achieve the purpose of cleaning. This kind of dishwasher can be divided into household and commercial according to its purpose. Commercial dishwashers include conveyor belt dishwashers, flying dishwashers, door dishwashers and desktop dishwashers. There are two main types of household dishwashers: cabinet and table.
2. Classification of dishwasher solutions
After years of development, dishwashers can be divided into these types according to their working principles: mechanical dishwashers, electronic dishwashers, smart dishwashers, and ultrasonic dishwashers. The following is an introduction to the principles of their respective schemes.
1. Mechanical dishwasher solution
The early dishwashers were controlled by a mechanical program controller. This type of dishwasher was relatively simple and relatively cheap. However, the initial investment in the development of the program controller was large. It is very difficult to change the washing program midway, which is not conducive to the rectification of problems and the improvement of washing performance. In addition, mechanical dishwashers lack high-precision signal feedback (such as temperature and water volume, etc.), and cannot accurately control the key parameters of the dishwasher. Therefore, their comprehensive washing performance is low and generally does not exceed the BBB level. It is the existence of the above-mentioned many shortcomings that the sales volume of dishwashers in this way has been declining year by year since 2004, and is currently on the verge of being eliminated.
2. Electronic dishwasher solution
Mechanical dishwashers are gradually fading out of the market and replaced by electronic dishwashers, which use electronic controllers to complete various functions. By programming the software of the single-chip microcomputer chip on the controller, a more user-friendly advanced operation interface can be produced; it can also accurately detect and control the key parameters of the dishwasher such as water intake and temperature; in addition, the flexibility of software modification is Function upgrades, performance improvements, or problem rectifications provide a lot of convenience. The above-mentioned advantages of electronic dishwashers make it possible to develop high-end dishwashers using fuzzy control technology. In addition, as European and American countries have increasingly stringent requirements for energy-saving and environmental protection of products, various dishwasher manufacturers are actively investing in the research and application of new technologies such as fuzzy control. has developed by leaps and bounds. At present, dishwashers with 3A-level washing performance are taking an increasing share of the entire market. In Europe, their market share has even reached 90%. Some famous brands have also launched 3A+ models with a higher level; At the same time, the market share of high-end dishwashers applying fuzzy control technology is also increasing year by year.
3. Smart dishwasher solution
In the current society, the "smart age" has arrived, and smart technology is bound to use all kinds of sensors. With the rapid development of sensor technology, its application fields are becoming more and more extensive, and people's requirements for intelligence are getting higher and higher. The demand for the application of intelligent technology is becoming more and more urgent. Although smart sensors convert various physical, chemical, or biological signals into electrical signals, humans can use computers to process and control these signals, but these operations will have certain temperature drift and other nonlinear effects. Therefore, for relevant engineering and research personnel, not only must master the structure, principle and performance indicators of various sensors, but also must understand that the sensor can meet the signal processing, display and control requirements through an appropriate interface circuit. On the other hand, the detection signals of sensors come from various application fields, and each field is researching its own sensor technology, so it is very important to derive various sensors.
In the current society, the Internet has spread to the general public, and intelligent home appliances have begun to enter society and families. In the near future, smart home appliances will become the new fashion of mass families with their shining advantages. At present, foreign home appliances are more bright in terms of intelligent control than domestic ones. Many computer and communication giants have entered the smart home appliance market one after another, either making hardware or providing software. However, domestic home appliance developers are also keeping up with the pace, and the progress of China's smart home appliances can be seen at every home appliance exhibition.
At present, for multi-sensing smart dishwashers, large foreign companies are in multiple R&D stages, and there are very few such models on the market. Multi-sensing smart dishwashers use pressure sensing technology to control water inlet accuracy, washing pump detection, and filter screens. There are technical difficulties in key technical aspects such as automatic cleaning, the loading capacity of the bowl, the combination of multiple sensor applications, and the detection method of turbidity. It is mainly reflected in the research of intelligent sensing and control technology with many types of sensors, such as temperature sensors, pressure sensors and turbidity sensors. There are many variables, the data processing is complicated, and it is difficult to establish a mathematical model. At the same time, there are technical difficulties such as high precision for water intake, multiple functions, high reliability, and the impact of detergent on turbidity values.
The multi-sensing intelligent dishwasher uses the detection voltage of the turbidity sensor, pressure sensor and temperature sensor as parameters, and then uses the mathematical model algorithm to process according to the parameters, and obtains the optimal washing procedure (time, temperature, water intake). path to achieve the best performance.
The electronic control team of some foreign companies used fuzzy control technology when designing dishwashers. The application of this technology will automatically optimize the washing parameters according to the detected load, such as time, water intake and heating temperature, to prevent Excessive use of these parameters leads to a waste of energy. Improve washing performance by improving the way of washing spray arms. The spray arm of the dishwasher that most people see is that the nozzle rotates periodically with the spray arm, and the spray angle and spray area are relatively small. In order to solve the short board of this spray arm, a new type of spray arm structure - master-slave spray arm is designed, that is, a small spray arm is added to one end of the main spray arm. During the washing process, it is located on the small spray arm In addition to the orbital movement around the center of the main spray arm, the nozzle also rotates around the center of the small spray arm. The test results show that, in the case of other configurations being the same, only the ordinary spray arm is replaced with the master-slave spray arm, and the cleaning rate will increase by 20%.
4. Ultrasonic dishwasher solution
Ultrasonic dishwashers use the principle of ultrasonic cleaning: when ultrasonic waves pass through a liquid medium, it will press the liquid medium to vibrate at a very high frequency, causing the liquid molecules to generate positive and negative alternating shock waves. When the sound intensity reaches a certain value, tiny cavitation bubbles grow rapidly in the liquid and close instantly, producing strong micro-explosions and shock waves that destroy the dirt on the surface of the object to be cleaned and fall off from the surface to be cleaned. Although the effect of each cavitation bubble is not large, there are hundreds of millions of cavitation bubbles acting on it every second, which has a very good cleaning effect A#B. Because the ultrasonic wave can bypass the solid matter to vibrate the entire liquid medium and generate cavitation bubbles, there is no dead angle that cannot be cleaned in this cleaning method, and the test proves that the cleanliness of ultrasonic cleaning is high. Compared with traditional dishwashers, ultrasonic dishwashers have the following advantages:
(1) Ultrasonic dishwashers save electricity and make less noise: because ultrasonic dishwashers do not require motors and water pumps, high-pressure water, circulating water, and movement and rotation of mechanisms are not required for washing. It is finished by vibrating quietly, so the machine has low noise and saves power. "The dishwasher has a simple structure and a long service life. Because it uses the vibration of water molecules generated by ultrasonic waves to wash dishes, it does not require the traditional dishwasher's spray arm rotation mechanism, water stirring impeller mechanism, and does not need pumps, motors, and circulating water. system, etc., so the structure is much simpler, the chance of failure is much less, and the maintenance and after-sales service are simple.
(2) No need for special detergent: Traditional dishwashers mainly rely on the chemical cleaning effect of special detergents, while ultrasonic dishwashers do not need detergents in principle. Adding detergent only plays an auxiliary role in degreasing, and there is no special requirement for detergent.
(3) Suitable for cleaning Chinese tableware: Chinese food is greasy and heavy, and the bowl is deep, so it is difficult to clean it in the dishwasher. Ultrasonic dishwashers can go around deep bowls due to the vibration of liquid molecules, and there is no dead angle that cannot be cleaned. And the test proves that it can remove greasy especially.
3. Market Status of Dishwashers
With the improvement of people's living standards and the urgent need for high-quality life, the dishwasher kitchen has become the focus of attention of many Chinese families. However, dishwashers are suitable for Chinese family kitchens, and they are also very useful for frying, frying, cooking, and cleaning. However, many people are still skeptical about Chinese dishwashers.
The application of dishwashers is affected by various factors, such as the size of the kitchen area, the price of water and electricity, the purchase of special detergents, and living habits. Chinese tableware is mainly bowls and plates, but the types and specifications of bowls are not standardized, unlike European and American tableware, which are highly standardized. Dishwashers generally use a water spray type. The water flow is not strong, and the grooves of the bowl are easy to be washed away. If the position is wrong, the washing effect will not be as good as hand washing. In addition, at the beginning of the market development, the price of dishwashers was generally high, and ordinary working-class people preferred to choose hand washing. According to a survey conducted by the China Consumers Association, more than 95% of consumers in China know nothing about the functions of dishwashers, and most of them have never even seen dishwashers. Less than 2% of consumers have bought or plan to buy, and more than 50% of consumers said they would consider buying in the future. All this information shows that dishwashers are still in the initial stage of development in China and will have great potential for development in the future.
4. Suggestions on choosing the brand of dishwasher
(1) Look at the effect of cleaning and disinfection. The effect of cleaning the dishwasher is one of the key factors to measure the quality of a dishwasher. Chinese families who are used to frying, frying, cooking, and frying should choose according to their own cleaning effect. Usually you can choose the nozzle or impeller model, with washing, rinsing, drying and automatic program control to meet the basic living needs of its functions. Some dishwashers have rapid flushing, flushing, rinsing and rotating spray functions for more powerful and safe cleaning. With the new function of microcomputer control, the sensor detection dishwasher is a good choice. In addition, the market has introduced double-rotating spray arms in recent years, pre-washing and reserved washing, and has a backup power washing function, and a dishwasher child safety lock function, making cleaning more convenient and safe. The disinfection and drying function of the dishwasher is also very important for the cleaning of the home kitchen. Consumers should choose to use the physical method of dishwasher disinfection for thorough disinfection to ensure safety.
(2) Consider the installation form. The higher requirements for the installation of built-in dishwashers need to be purchased before decoration, and the overall cabinet should be designed according to the dishwasher and its specifications. Built-in dishwashers allow for more space in the kitchen without causing congestion. If you have a well-decorated kitchen, you should choose an independent dishwasher. As long as there is a space where electricity and water are connected, you can have a good helper for a clean kitchen.
(3) Choose the appropriate size and capacity. According to Western habits, the cleaning capacity of a dishwasher is usually set at about 8, 10 or 12 sets of utensils. For example, a dishwasher is usually larger and can be placed together with clean pots and utensils, more than a family. The Chinese dishwasher market is based on the number and design capacity of 6-pack dishwashers based on the habits of Chinese family eating habits. These relatively small-sized dishwashers can wash dishes, etc., except for regular tableware, there is no problem with cleaning. More suitable for small families. In addition, the easier use of the dishwasher's door in the pull-down is worth our while.
(4) Choose the right brand. The general election of the dishwasher brand is very important, first of all, its products are generally recognized by the public, more reliable quality. Secondly, a good brand has a high-quality service system. When there are parts, you only need to make a sales call to come to repair the problem. The manufacturer even provides replacement, return service, and some quality assurance.
(5) Dishwasher optional accessories. Dishwashers need to use special detergents in their work, while brighteners and ordinary detergents may be a problem with cleaning foam. In addition, because the water in northern China is very fresh, fresh water should be matched with salt to prevent water from polluting tableware.
The above are the details of the dishwasher solution introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have electronic function development needs for kitchen appliances such as dishwashers, you can trust us. We have rich experience in customized development of electronic products. We can evaluate the development cycle and IC price as soon as possible, and can also calculate the PCBA quotation for dishwashers. We are a number of chip agents at home and abroad, including MCU, voice IC, Bluetooth IC and modules, wifi modules. Our development capabilities cover PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development and other hardware and software design. It can also undertake the research and development of smart electronic products, household appliances scheme design, beauty equipment development, Internet of Things application development, smart home scheme design, TWS scheme development, Bluetooth audio development, children's toy scheme development, and electronic education product development.
- TOP