Common-mode inductor for LED (light-emitting diode) displays
A technology of LED display and common mode inductance, applied in the direction of transformer/inductor magnetic core, inductance with magnetic core, etc., can solve the problems of large loss, low conversion efficiency, reduced reliability, etc. The effect of high temperature and low power loss
Inactive Publication Date: 2012-09-05
江苏泰昌电子有限公司
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Problems solved by technology
[0004] For some common-mode inductors, in order to meet the requirements of power conversion and current carrying, the filter is large in size along with the supporting transformer, and the conversion efficiency is low and the loss is large, resulting in the heat generation of the components on the entire power board. large, temperature rise
However, the LED display system generally has a compact structure and is in a sealed state, so the heat dissipation effect is not good.
The large amount of heat generated by the components on the power board leads to the instability of the power system and reduces the reliability, shortens the life of the product, and reduces the efficiency of the entire power supply, which is not conducive to energy saving
Method used
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[0010] The present invention is further explained below in conjunction with the accompanying drawings.
[0011] like figure 1 As shown, the common mode inductor for the LED display includes a base 1, flanges 2 are respectively provided on both sides of the base 1, and an included angle ranging from 0° to 90° is formed between the flange 2 and the base 1, preferably 35°, The coil 4 is wound on the magnetic core 3, and the magnetic core 3 is placed on the flange 2. Due to the inclination of the magnetic core, the overall height of the common mode inductance decreases, and the product sinks below the PCB, thereby It has the characteristics of ultra-thin body of the whole product. It is an indispensable core component in the field of LED displays.
[0012] The above-mentioned embodiments are only for illustrating the technical concept and characteristics of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the prese...
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Abstract
The invention discloses a common-mode inductor for LED (light-emitting diode) displays. The common-mode inductor comprises a base and flanges, wherein the flanges are arranged on both sides of the base, an inclined angle is formed between each flange and the base, a coil is wound around a magnetic core, the magnetic core is placed on the flange, and the inclined angle is 0-90 degrees. The common-mode inductor for LED displays is small in volume, and can meet the application requirements on small power loss, small heat value, high operating temperature and large bearing current when the common-mode inductor and a super-thin transformer are used simultaneously; and the common-mode inductor can stably operate at a temperature between minus 25 and plus 120 DEG C.
Description
technical field [0001] The invention relates to a common mode inductor, in particular to a common mode inductor for LED displays. Background technique [0002] In the field of LED displays, with the implementation of the national "energy saving and environmental protection" policy, LED displays are the absolute mainstream products on the market. In addition to the light-emitting advantage, the biggest benefit of LED-backlit displays is to ensure that the brightness difference at each point of the screen can be well controlled, and it does not require too much energy consumption. Better brightness uniformity allows images on LED screens to have richer layers, rather than pure black blocks. Compared with the brightness of traditional CCFL products, which is generally 300 to 500 lumens, the brightness of LED display equipment can easily reach thousands of lumens to meet the needs of various industrial applications. Coupled with the obvious advantages of LED energy consumption...
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Login to View More IPC IPC(8): H01F17/04H01F27/26
Inventor 朱锦良
Owner 江苏泰昌电子有限公司