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Security cooling fan | Introduction to cooling solutions for the security monitoring industry

by:TOCH     2021-03-26

Security cooling fan|Introduction to cooling solutions for the security monitoring industry As we all know, all electronic and electrical equipment face a common problem: as long as it works, it will generate heat (except for superconductivity). This is because all devices have an equivalent resistance of a certain size. Resistance multiplied by the current flowing is the voltage drop, and the voltage multiplied by the current equals the power. From Ohm's law, this power must be converted into heat. Security equipment basically works day by day. If the heat dissipation design of the security product is defective, heat will not only accelerate the aging of the security electronic components, but it is also likely to cause irreversible damage to them. The following will briefly introduce the heat dissipation solutions of the security industry in three aspects: surveillance cameras, surveillance storage hard disks, and integrated wiring of surveillance systems. 1. Surveillance camera. Since the surveillance camera is equipped with an infrared lamp with a large amount of heat, after the infrared lamp is started, there will be heat concentration in the front of the infrared camera during the entire working period (in hours). If the heat is not uniform, it will affect the normal operation of the camera. For example, if the infrared light board is running for a long time, the temperature on the LED board can almost reach about 10 degrees. The CCD image sensor behind the LED board becomes the most direct victim, and the CCD image sensor can directly convert the optical signal. It is an analog current signal. After amplification and analog-to-digital conversion, the current signal is an important component for image acquisition, storage, transmission, processing and reproduction in a surveillance camera. The following summarizes the six common heat dissipation methods for surveillance cameras: 1. Reduce current. Using low-power infrared lamps instead of high-power infrared lamps can reduce heat generation, but the effect is certainly not obvious when irradiating long distances. , Install a cooling fan inside. Our company also has a security monitoring system. As a cooling fan manufacturer, we install a cooling fan in the surveillance camera, and its service life is significantly longer than that of a camera without a cooling fan. The long-life (hours) ball cooling fan, coupled with the temperature control function (adjust the speed through temperature sensing), can better protect the security surveillance camera. , Use a constant current power supply. Keep the current constant and control the heat dissipation of the LED. , Group arrangement of LED lights. For example, in the case of infrared rays, they can be arranged in groups to reduce heat. , The choice of structural materials. For example, aluminum alloy and other materials with better heat dissipation are used for LED lamp board and housing. , Application of thermal conductive materials. The heat conduction medium material is used to transfer the heat of the heating element to the shell and then dissipate heat through natural convection. 2. Monitor storage hard drives. In the process of storing massive video data, the monitoring hard disk maintains a stable storage speed (the faster the rotating speed is, the higher the heat generated by the hard disk), but due to the large amount of data and continuous reading and writing of data information, there is no 'stop' work When the temperature of the hard disk has a feeling of “warm temperature”, the temperature at this time has reached about ℃. If the hard disk is overheated, the storage efficiency will be affected. After the work efficiency drops, the recording speed and storage are not equal to cause a delay, and the meaning of real-time monitoring will no longer exist. In a more serious situation, the high temperature of the hard disk causes the system to crash or even the entire hard disk is destroyed. In home or civilian monitoring systems, the 'spontaneous combustion' event caused by overheating of the hard disk is not new. Considering the price difference between PC hard disk and surveillance hard disk, most people buy the PC hard disk in the video recorder with the mentality of “saving while saving”. Different startup methods, different rotation speeds, and different stability of the hard disk will greatly affect the hard disk. As a result, important video data will not only be lost, but the cost seems to be more expensive. Therefore, the general DVR (hard disk video recorder) is equipped with a cooling fan, especially the monitoring storage hard disk will be installed with a fan to dissipate heat. 3. Integrated wiring of monitoring system. In a limited space, the heat dissipation of redundant cables will increase the ambient temperature. When the ambient temperature rises, the transmission attenuation characteristics of the cables will be improved accordingly, which will directly affect the transmission quality of the cables. This is also one of the common main causes of transmission quality failures in many redundant networks. There is a common point in redundant network cabling, that is, a large number of cables of different purposes are mixed together, and cables of different purposes are mixed together easily to cause interference and also affect their heat dissipation. Therefore, the network wiring design should consider heat dissipation and avoid excessive redundancy. The wiring construction should be professionally operated to avoid random changes; attention should be paid to the electromagnetic test and acceptance, and the distribution frame should be used cleverly to make the wiring concise and orderly. Now mainstream cameras are gradually moving towards high-end, high-definition pixels; major security equipment manufacturers are gradually introducing cloud storage solutions, and cloud storage vendors are combining various search, application technologies and cloud storage to provide enterprises with a series of data services As a result, data storage equipment will move towards larger and higher-end servers, so mainstream cameras and surveillance servers will also have higher heat dissipation requirements. Automobile radiator fan factory is a cooling fan manufacturer integrating Ru0026D, production and sales. It cooperates with many well-known domestic video-centric IoT solutions and companies that produce security surveillance video products. Needs, please contact our company. Contact information of car radiator fan factory Address: Junzi Bulingwu Industrial Road, Guanlan Street, Longhua District, Shenzhen Tel: // Sales:// Fax: Website: Email:market@szhxht.com
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