With the continuous innovation of LED packaging technology and the implementation of energy saving and emission reduction policies at home and abroad, the proportion of LED light source applications in the field of lighting is increasing, and new packaging forms are constantly being introduced. Yuan Lei senior engineer Ouyang Minghua said: "LED performance in heat dissipation, light efficiency, reliability, cost performance is still a concern, if these are not broken, or new products in the future can achieve breakthroughs, then lighting The field selection may not be LED.†COB (Chip on Board) is the LED packaging product introduced by the industry in this context. Compared with traditional discrete LED packaging products, it has better heat dissipation capability and high density. Luminous flux output. In addition to explaining some of the characteristics of COB, this paper focuses on how to improve the light efficiency of COB from the basic principles and seek ways to meet the core value points of lighting.
COB has good heat dissipation capacity
When designing the LED package structure, the junction temperature of the chip should be reduced as much as possible. The COB packaged chip has the shortest heat dissipation path, and can directly transfer the heat of the working chip to the metal substrate and then to the heat sink. Therefore, the COB has better heat dissipation capability than the conventional discrete component assembly. The material of the current COB metal substrate is copper, aluminum, aluminum oxide, aluminum nitride, etc. In terms of overall cost, heat dissipation capability, corrosion resistance, etc., aluminum is mainly used as a metal substrate to produce COB. The following figure shows Yuanlei COB products. Structure diagram.
COB enables high-density luminous flux output
When using LEDs in a modular design, we usually give a small amount of space to the light source. At the same time, we hope to have a high enough brightness output in a small size. However, this solution can hardly be found on discrete component LEDs. Of course, some possibilities are possible. 3535 ceramics or other products with relatively small light fluxes are selected, but they are not comparable to the high-density luminous flux output of COB or MCOB. So the advantages of COB in product modularization are reflected: it helps the modular design and maintains a high luminous flux.
The drive design of the COB is very flexible, and the application side can select COB in combination with existing driving conditions to meet various solutions from low pressure to high pressure.
COB three modular design drawings
Hotel Door Lock Motor also known as Smart Hotel Door Lock Motor, perform operations in the hotel door lock, at this point, the cardholder simply throw the door handle to open the door. That is to say the hotel Door Lock Motor is used to open the door.
Induction door lock is a infrared sensor through induction of new security equipment, widely used in hotels, hotels and clubs, and other areas of the smart IC card, rf door lock, generally divided into induction induction door lock system, provides the high quality for the hotel induction door lock system. Induction in the European and American countries have been developed to a certain extent, has been a measure of the quality of life index of height and life.
Operating temperature range:
Hotel door Lock Motor should be used at a temperature of -10~60℃.
The figures stated in the catalog specifications are based on use at ordinary room temperature catalog specifications re based on use at ordinary room temperature (approximately20~25℃.
If a Smart Hotel Door Lock Motor is used outside the prescribed temperature range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.Depending on the temperature conditions ,it may be possible to deal with them by changing the grease of the motor's parts.Please feel free to consult with us about this.
Storage temperature range:
lock motor should be stored ta a temperature of -15~65℃.
In case of storage outside this range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.
Service life:
The longevity of Smart Hotel Door Lock Motor is greatly affected by the load conditions , the mode of operation,the environment of use ,etc.Therefore,it is necessary to check the conditions under which the product will actually be used .The following conditions will have a negative effect on longevity.Please consult with us should any of them apply.
â—Use with a load that exceeds the rated torque
â—Frequent starting
â—Momentary reversals of turning direction
â—Impact loads
â—Long-term continuous operation
â—Forced turning using the output shaft
â—Use in which the permitted overhang load or the permitted thrust load is exceeded
â—A pulse drive ,e.g.,a short break,counter electromotive force,PWM control
â—Use of a voltage that is nonstandard as regards the rated voltage
â—Use outside the prescribed temperature or relative-humidity range,or in a special environment.
â—Please consult with us about these or any other conditions of use that may apply,so that we can be sure that you select the most appropriate model.
Hotel door lock motor applicable door types: building doors, fire doors, security doors, door and office door, fire doors, etc. Applicable scenario: family, company, office buildings, schools, shopping malls, such as Banks.
when it come to volume production,we're a major player as well .each month,we rurn out 600000 units,all of which are compliant with the rohs directive.Have any questions or special needed, please contact us, we have the engineer group and best sales department to service to you
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Hotel Door Lock Motor
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