In recent years, household disinfection penetrated into all areas of home appliances, in addition to embedded,vertical, desktop and other traditional household disinfection cabinet, dishwasher, oven, refrigerator, washing machine, air conditioning and other appliances are also increasing the disinfection function, people pay more and more attention to family health, "disinfection" become a new functional appliance, is applied to various fields, this paper is in the current commonly used disinfection technology on the market are analyzed on the basis of the focus and expounds the application of optical technology in the kitchen appliances disinfection tableware cabinet on the market and the latest development trend.

The article mainly discusses about the application of metal honeycomb combustion-supporting boards made by curly corrugated ribbons in household cooking stove burners. To solve the problem of short lifecycle and poor stability of such metal honeycomb combustion-supportion boards, combining with the experiments, the article analyses the root cause of short lifecycle, easy deformation, oxidation, easy fall-off of catalytic coating, short useful tiom of catalyst and backfire phenomenon. Through the own use theory that far infrared ray can catalyze combustion, the article focuses on oriented structure design, material optimal selection, processing technic and tool standard improvement of metal honeycomb combustion-supporting boards, in order to achieve the effects of long lifecycle, good stability and being not easy to get backfire.

This article compares the standard content of rice cookers in China, Japan, and South Korea, and interprets standard differences from three aspects of electrical safety standards, performance standards, and energy efficiency standards, and provides reference for rice cooker designers.

The texture characteristic of food refers to the texture and internal structure of food, it reflects people's sensory impression when food is ingested, contacted, chewed and swallowed, which is an important characteristic of food quality. The texture characteristics of cooked rice is an important indicator of quality to evaluate the quality of rice taste. Different types of rice cookers because of their different control methods, cooked rice taste different. In this paper, the influence of hardness, adhesion, elasticity and chewiness on rice taste index under different triggering forces, compressing amounts and testing speeds was investigated. The results show that when the setting of the compression amount is 85%, trigger force is 2N, test speed 60mm/min, rice texture properties of indicators measured results reproducibility is better.

Electric ceramic heating products use electric ceramic heating hob and other heating materials to heat the heating products. The standard state of electric ceramic heating hob products and market certification requirements are analyzed. According to the domestic certification rules (CCC) in China, the two different electric ceramic heating hobs for harmonic performance are chosen to test to exempt the electric ceramic heating hob products from electromagnetic compatibility testing. The results showed that the difference between harmonic current data of the two samples is significantly. It shows that it is necessary to strengthen the research on electric ceramic heating hob products in the future certification rules and standardization work and to formulate appropriate market supervision programs.

According to the requirements of article 19.4 in GB 4706.1-2005 and GB 4706.19-2008, this paper summarizes the actual test cases, puts forward the structural problems of electric chafing dish products with temperature regulating coupler, and puts forward personal understanding.

This paper analyzes the method and effect factors of moisture resistance of heating liquids combined with the relevant requirements of national standards and IEC standards, and analysis the reason of electric strength breakdown of cordless kettle with the cases, finally, put forward some amelioration advice about it.

Electromagnetic radiation has been listed as the fourth major source of environmental pollution after the water source, atmosphere and noise. It has become the invisible killer of human health, which has been harbored by WHO. At present, the influence of high-frequency radiation on human body is mainly due to the thermal effect absorbed by human body, which may lead to human dysfunction. Low frequency radiation is mainly concerned with low-frequency magnetic field, which generates eddy currents in human body and affects human health. Based on the characteristics of household appliances, industry and the domestic and foreign standards, this paper chooses the radiation test of induction cooking appliance. According to the monitoring results, the cause of radiation harassment of this kind of product is put forward so as to improve the safety for consumers.

This paper analyzes the structure, control methods and possible unsafe factors of automatic moving part and its control circuit of range hoods, and puts forward the corresponding safety measures according to the requirements of IEC 60335-2-31:2012 (Ed5.0) safety standard.

This paper discuss the procedure and method of evaluating the uncertainty in measurement of total pressure efficiency and airflow of the range hood, explore the application of evaluation results in product design and verification, evaluate the product quality and laboratory capabilities and propose corrective measures. It points out that there is a significant difference between the testing point of current standard and the actual operating point of the mainstream product on the market, resulting in the test result cannot accurately reflect the actual performance of the product, and put forward some suggestions for improvement.

As an important constitution of food contact product, kitchen appliance should compliance the requirement of national standard for food contact safety. However, at present, the food contact safety assessment of kitchen appliance is taken on the component, and no test and assessment method can be found to evaluate food contact safety of whole product. In this paper, we uses whole product simulation test and component weighting test to evaluate the food contact safety of whole product. The results show that the compliance of component doesn’t represent the compliance of whole product, which means that the evaluation of whole product food contact safety has significant meanings.

For the inverter refrigerator compressor, Cool-Tech^TM technology design the current feedforward torque compensation algorithm in the software; In the hardware Silan high-performance low-power microcontrollers and customized super-junction power MOSFET are selected. Experiments show that, compared with the sensorless FOC control and the traditional square wave control, Cool-Tech^TM technology can effectively reduce the system noise and vibration, reduce the inverter power consumption and improve system COP value.

Inverter air conditioner has become a trend, but there are still some limitations in the comfort and energy saving. It is mainly reflected in the following two aspects: firstly, the air outlet temperature is too low (about 5-7 degrees centigrade) in the cooling mode. Low air outlet temperature is easy to cause air conditioning disease. Secondly, if the inverter air conditioner runs a short period of time , it costs higher power than constant frequency air conditioner. Only when the running time is long,the energy saving effect of inverter air conditioner can be outstanding.
Based on a PMV comfort model for Chinese human body,the paper puts forward a intelligent control of dual proportion-integration-differentiation with the ambient temperature and piping temperature. It can cool down quickly , increase the comfort level of the air outlet to the local user and solve the disease of air conditioner effectively. Experimental results reveal that this technology can not only maintain the room temperature at 24-26 which is the best comfort level for users, but also has the remarkable saving effect , and the power saving rate is as high as 31%.

The thermal performance of the air source heat pump becomes worse when the outdoor finned tube heat exchanger frosting, it affects the safe and stable operation of the heat pump system at the same time. So delaying the frosting of the outdoor heat exchanger will significantly improve the thermal performance and indoor thermal comfortability of the heat pump system, ensuring the reliable operation of the heat pump unit. Based on the air enthalpy difference test platform, the process of frosting/defrosting for two different finned tube heat exchanger using hydrophilic coating and super-hydrophobic coating was compared under the condition of 2/1℃ dry /wet bulb temperature and with a wind velocity of 1.5m/s in front of the heat exchanger.Results show that, the fin tube heat exchanger using super-hydrophobic coating could effectively inhibit the formation of frost layer and delaying the frosting cycle, improving the performance of the heat exchanger under the low temperature conditions. Comparing with the hydrophilic coating, the frosting cycle of super-hydrophobic coating increased by 87.5%. The heat transfer capacity also raised 8.4%, accordingly. This paper is helpful for the design and operation of the air source heat pump system.

In order to compare the influences of exhaust through the bypass channel and the main channel on the energy efficiency of the air conditioning system and the suction temperature, a single variable method was used to verify the performance under different conditions and different frequencies. The results showed that capacity increased 3%-4% and energy efficiency increased 2.6%-3.6% at low temperature for cooling. Capacity increased 4.6% and energy efficiency increased 6% in low temperature and low frequency for heating. Capacity increased 18.6% and energy efficiency increased 11.3% in high frequency for heating. Capacity increased 28.3% and energy efficiency increased 14.8% at rated heating conditions. The effect of energy saving was very obvious .

How much solar water heater to produce hot water do with the weather and season, hot water more and less to use is very inconvenient. The application of Internet of things on the solar water heater. Using RFID and the Internet technology manage the equipment to distinguish and transfer the signal. The user can know the information of water heater at any time, and according to the demand for hot water, open the auxiliary electrical heating in advance. It can also stats solar water heater temperature and information for user access through the cloud platforms. It provide data support for the research on the performance of the solar water heater.

The illuminating quality problem of LED lamp has been paid more and more attention. This paper describes the lighting performance requirements of GB/T 9473 new standard for LED table lamps, and provides sample testing and result analysis of LED lamp products on the market, finds that the lighting quality problems and puts forward suggestions for rectification.

Air conditioning cooling and heating speed is a major pain point to users who use the air conditioner. There is no the corresponding evaluation index of air conditioning cooling and heating speed of the starting stage. the compressor start speed and cooling or heating outlet air temperature can objectively evaluate air conditioner cooling and heating result.

Customization and personalized is one direction of development of the future refrigerator. This article analyze the traditional refrigerator U-shell manufacture technique, rolling forming and the intelligent CNC mold bending U-shell technique, compare their advantage and disadvantage. The intelligent CNC mold bending technique have many advantage , it can forming many profile, adjust the dimension very fast and convenient, it is suitable for many sheet thickness and material. It accurately forming. These made it more appropriate for the new tendency of manufacturing technique of refrigerator’s sheet, which is customization and personalized.