Method for forming key indicating light by utilizing PCB through hole
A technology for PCB circuit boards and buttons, which is applied in the field of using PCB circuit board through holes to form button indicator lights, can solve problems such as increasing product cost and production process complexity, reducing button sensitivity, etc. The effect of lighting effects
Inactive Publication Date: 2010-06-23
KONKA GROUP
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Problems solved by technology
The button indicator light is usually realized by PVC patch or 3M glue with holes of different shapes, but this will increase the product cost and the complexity of the production process, especially when it is used for capacitive touch-sensitive buttons, it will also reduce the button sensitivity.
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[0016] A kind of method that utilizes PCB circuit board through hole to form the method of button indicator light, refer to attached figure 1 And attached figure 2 , including a PCB circuit board 1 and a light-transmitting button housing 2, the light baffle 3 is arranged on the inner side of the PCB circuit board 1, the light baffle 3 is fixedly connected with the PCB circuit board 1, and the light baffle 3 is designed to be used for installing the LED light source 4. lumen, the steps are:
[0017] a Use the light baffle 3 to converge the light emitted by the LED light source 4 as the light source for the indicator light, and the LED light source 4 adopts a side-mounted patch type;
[0018] b Design circular, triangular, + symbol and - symbol through holes 5 on the PCB circuit board 1 according to the needs of the button indication function. The through holes are metallized with metal tin foil, and the other parts of the PCB circuit board are painted black. The illumination...
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The invention provides a method for forming key indicating light by utilizing PCB through hole, aiming at overcoming defects of key indicating light of the appliance in application. The invention comprises a PCB board and a diaphanous key case, the method includes the steps that: light rays emitted by a light source are focused to be an illuminating light source of indicating light; then through holes in different shapes are designed on the PCB board according to the key indicating function requirement, and then the illuminating light source produces indicating lights in different shapes by virtue of the through holes; and the indicating lights in different shapes penetrate the key case and are displayed at corresponding key positions. The invention has the beneficial effects that: the method is simple and practical, implementation cost is greatly reduced compared with the prior art, and indicating and illuminating effects are better.
Description
technical field [0001] The invention relates to a method for realizing the light of an indicator light of a button function of an electric appliance, in particular to a method for forming the light of a button indicator light by using a through hole of a PCB circuit board. Background technique [0002] At present, key indications applied to electrical appliances such as television sets, induction cookers, refrigerators, washing machines, etc. generally adopt the key function indication of capacitive touch sensing keys. The button indicator light is usually realized by PVC patch or 3M glue with holes of different shapes, but this will increase the product cost and the complexity of the production process, especially when it is used for capacitive touch-sensitive buttons, it will also reduce the button sensitivity. Contents of the invention [0003] The present invention provides a method for forming the button indicator light by utilizing the through hole of the PCB circuit...
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IPC IPC(8): H01H9/18
Inventor 鲍尔姜海松
Owner KONKA GROUP