TWI732138B - UV LED packaging structure - Google Patents

Abstract

The present invention aims to disclose an ultraviolet LED packaging structure, which utilizes a packaging body to integrate an ultraviolet LED, a driving device, a control device, and an indicator light on a substrate for packaging. The control device is electrically connected to the drive device and the indicator light for control, so that the present invention can be effectively used to perform light sterilization operations and maintain/improve the sterilization effect. It is also possible to determine whether the ultraviolet LED is abnormal by changing the brightness of the indicator light.

Description

UV LED packaging structure

The present invention relates to a packaging structure, and particularly refers to a structure that encapsulates an ultraviolet LED and other components that are adapted for operation.

Naturally sourced ultraviolet (Ultraviolet, UV) originates from the invisible light radiated by the sun. It has been discovered through research and experiments that it is an electromagnetic wave with a wavelength between 10nm and 400nm. According to different wavelength ranges, ultraviolet rays are roughly classified into three types: ultraviolet A (UVA), ultraviolet B (UVB), and ultraviolet C (UVC). With the remarkable advancement of science and technology, various types of UV equipment have been realized, and they have a wide range of applications in various fields, and the popularization of science is known to the public.

In view of the considerable market value of UV products and the expected growth prospects, various industries have invested in UV research and development as a major product in order to lay out and seize business opportunities. Among them, the use of ultraviolet light for laser, sterilization, phototherapy, anti-counterfeiting detection, photo-activated air purification or scientific analysis, etc., are currently common technical means on the market. In the early days, ultraviolet sterilization has been used in medical disinfection and substance detection for many years. Now, thanks to the leap forward of the times, the use of ultraviolet rays has a wider degree of freedom. For example, products with food preservation, lighting requirements for the growth environment of animals and plants, medical beauty, air filtration, etc., have been completely popularized in people’s livelihood products and their traces can be seen. .

The advent of light-emitting diodes (LEDs) has led the lighting industry to a new level. Compared with traditional lamps (incandescent lamps, halogen lamps, high-pressure sodium lamps, mercury lamps, etc.), its advantages provide people Well known. In the future, the popularization of light-emitting diodes will inevitably become the mainstream, and is approaching maturity and saturation. The use of UV LEDs to replace UV lamps is a well-known art; however, how to effectively improve the performance of UV LEDs, increase the service life, reduce the limitations of the use environment, and integrate various components to increase functions, etc., are the goals that the industry urgently needs to improve. . For this reason, the inventors thought and invented the idea of improvement and started to develop solutions. After many years of thinking, the UV LED package structure of the present invention was produced to serve the public and promote the development of this industry.

One object of the present invention is to provide an ultraviolet LED packaging structure, which utilizes a control device to control the light intensity of the ultraviolet LED to maintain and enhance the effectiveness of the sterilization operation.

One objective of the present invention is to provide a UV LED packaging structure. The control device obtains the change in the light intensity of the UV LED through the detection module, and the brightness of the indicator shows a change, so that the user can determine whether the intensity of the UV LED is abnormal or not.

One objective of the present invention is to provide an ultraviolet LED packaging structure. The control device obtains the operating temperature of the driving device and the ultraviolet LED through the sensing module, and understands the operating performance of the driving device and the ultraviolet LED (whether it is overloaded, overheated, or in normal operation) , To adjust the working time and output current intensity of the driving device in a timely manner to maintain the basic operation of the driving device and the UV LED.

In order to achieve the aforementioned objectives and effects, the present invention discloses an ultraviolet LED packaging structure, which includes: a substrate; an ultraviolet LED arranged on one side of the substrate; and a driving device arranged on the other side of the substrate , Electrically connected to the ultraviolet LED to drive the ultraviolet LED to actuate to generate a light intensity and a light time; a control device, arranged on one side of the substrate and the driving device, includes a detection module and a processing module, The detection module is electrically connected to the processing module to detect the light intensity and the light time to generate a detection signal, and the processing module is electrically connected to the driving device to receive the detection signal to control the driving device Adjust the light intensity; an indicator light, arranged on one side of the substrate and the control device, electrically connected to the processing module, and receiving the detection signal through the processing module to change the brightness state of the indicator light; and a package Body, the ultraviolet LED, the driving device, the control device and the indicator light are packaged on the substrate.

In an embodiment of the present invention, it is also disclosed that the processing module controls the driving device to act, and the current and frequency input to the ultraviolet LED are adjusted by the driving device to change the light intensity and the light time.

In an embodiment of the present invention, it is also disclosed that the detection module includes a sensing module electrically connected to the detection module to sense the operating temperature of the driving device and the ultraviolet LED to generate a sensing The sensing signal is transmitted to the detection module, and the detection signal includes the sensing signal received by the processing module to adjust a working time and output current intensity of the driving device.

In an embodiment of the present invention, it is also disclosed that the processing module receives the detection signal, determines whether the light intensity matches a sterilization intensity, and adjusts the working time.

In an embodiment of the present invention, it is also disclosed that the ultraviolet LED is a UVC ultraviolet light with a wavelength of 100 nm to 280 nm.

In an embodiment of the present invention, it is also disclosed that the ultraviolet LED is a single LED or is composed of a plurality of LEDs.

In an embodiment of the present invention, it is also disclosed that the processing module receives the detection signal, determines that the light intensity does not meet a sterilization intensity, and adjusts the light intensity through the driving device.

In order to enable your reviewer to have a further understanding and understanding of the features of the present invention and the effects achieved, only the examples and detailed descriptions are provided. The description is as follows:

Please refer to the first figure, which is a schematic diagram of the first embodiment of the UV LED packaging structure of the present invention. As shown in the figure, the UV LED packaging structure 1 of the present invention includes: a substrate 10, a UV LED 12, a driving device 14, a control device 16, an indicator light 18, and a package body 19. The ultraviolet LED 12 is arranged on one side of the substrate 10. The driving device 14 is disposed on the other side of the substrate 10 and is electrically connected to the ultraviolet LED 12 to drive the ultraviolet LED 12 to generate a light intensity 120 and a light time 122. The control device 16 is disposed on one side of the substrate 10 and the driving device 14, and includes a detection module 160 and a processing module 162. The detection module 160 is electrically connected to the processing module 162, and detects the light intensity 120 and the light time 122 to generate a detection signal 1600, the processing module 162 is electrically connected to the driving device 14, receives the detection signal 1600, and controls the driving device 14 to adjust the light intensity 120. The indicator light 18 is disposed on one side of the substrate 10 and the control device 16, and is electrically connected to the processing module 162, and the processing module 162 receives the detection signal 1600 to change the brightness state of the indicator light 18. The package 19 encapsulates the ultraviolet LED 12, the driving device 14, the control device 16 and the indicator lamp 18 on the substrate 10.

Next, the implementation of the UV LED package structure 1 of the present invention will be described. First, the control device 16 operates the driving device 14 to actuate, and the driving device 14 inputs a current (including frequency) to the UV LED 12, and changes the size and period of the output current through the driving device 14 , And adjust the light intensity of the ultraviolet LED12 to 120, thereby starting the ultraviolet LED12 to emit ultraviolet light for sterilization; wherein, the ultraviolet LED12 is a UVC ultraviolet light with a wavelength of 100nm to 280nm, and can be a single LED or a plurality of LEDs . The detection module 160 is used as a UV sensor to detect the light intensity 120 and the light time 122 of the UV LED 12 to generate a detection signal 1600, and transmit the detection signal 1600 to the processing module 162, which is processed The module 162 calculates and processes the detection signal 1600 to determine whether the light intensity 120 of the ultraviolet LED 12 meets the energy intensity of a sterilization standard.

If it is judged that the light intensity 120 of the ultraviolet LED 12 reaches the energy intensity of the sterilization standard, it means that the conversion efficiency of the driving device 14 to activate the ultraviolet LED 12 is normal, and the light operation of the ultraviolet LED 12 can be performed according to the preset operating time. Especially if it is judged that the light intensity 120 of the ultraviolet LED 12 reaches the level performance above the sterilization standard, the processing module 162 can adjust the working time 140 (as shown in the second figure) and the output current intensity of the driving device 14 in a timely manner to reduce the light of the ultraviolet LED 12 Time 122. Therefore, the illumination time 122 of the UV LED 12 is equivalent to the working time 140 of the driving device 14. The driving device 14 is used as a switching element to turn on and off the UV LED 12. After receiving the detection signal 1600 through the processing module 162, the sterilization mode of the UV LED 12 is determined. Transform.

Conversely, if the processing module 162 receives the detection signal 1600 and determines that the light intensity 120 of the ultraviolet LED 12 does not reach the energy intensity of the sterilization standard, the processing module 162 will adjust the driving device 14 to increase the current input to the ultraviolet LED 12 or increase the light. Time 122, so that the UV LED 12 can reach the standard bactericidal light intensity of 120 performance.

Moreover, after the processing module 162 receives the detection signal 1600, it is equivalent to knowing the light energy intensity performance of the ultraviolet LED 12. Therefore, the processing module 162 can obtain the change of the light intensity 120 of the ultraviolet LED 12 by the detection signal 1600, thereby knowing the usage status of the ultraviolet LED 12, and generating a brightness change in the indicator light 18 to remind the user to pay attention to the current situation of the ultraviolet LED 12. In detail, the brightness change of the indicator light 18 changes correspondingly after the processing module 162 receives the detection signal 1600 for calculation and processing. Changes in the brightness of the indicator light 18, such as bright, off, and flickering gradual changes, are presented for the abnormal use of the ultraviolet LED 12, so that the user can judge the operation of the ultraviolet LED 12 to prevent the sterilization process from not being effective as expected.

Please refer to the second figure, which is a schematic diagram of the second embodiment of the ultraviolet LED packaging structure of the present invention. As shown in the figure, the difference between the first embodiment and the second embodiment of the ultraviolet LED package structure 1 of the present invention is that the detection module 160 further includes a sensing module 164 which is electrically connected to the detection module 160 , The operating temperature of the driving device 14 and the ultraviolet LED 12 is sensed to generate a sensing signal 1640, the sensing signal 1640 is transmitted to the detection module 160, and the detection signal 1600 includes the sensing signal 1640 which is received by the processing module 162 and adjusted The working time 140 and the output current intensity of one of the driving devices 14.

Since the driving device 14 and the ultraviolet LED 12 both generate heat after operating for a period of time, the generation of the heat easily reduces the performance of the driving device 14 itself and the energy drop of the ultraviolet LED 12. Therefore, the sensing module 164 is used as a temperature sensor to sense the operating temperature of the driving device 14 and the ultraviolet LED 12, and the sensing signal 1640 is transmitted to the detection module 160 to detect The module 160 then transmits the detection signal 1600 with the sensing signal 1640 to the processing module 162, and the processing module 162 determines whether the ultraviolet LED 12 is caused by the driving device 14 and the light intensity 120 is reduced to affect the sterilization process. If there is a reason that affects the light intensity 120 of the ultraviolet LED 12, the processing module 162 may decide to extend the working time 140 of the driving module 14 to increase the light time 122 to compensate for the lack of light intensity 120 and maintain the sterilization operation. Of course, if the processing module 162 finds that the operating temperature index of the driving device 14 is high/abnormal after receiving the detection signal 1600, it can also directly stop the operation of the driving device 14 to maintain the basic operation of the driving device 14 and the ultraviolet LED 12.

In summary, the UV LED packaging structure of the present invention integrates the UV LED, driving device, control device, indicator light and other structures on a substrate for packaging processing. At the same time, the UV LED, the driving device and the indicator light are controlled by the control device in a centrally controlled management mode, so that the UV LED package structure can be maintained, and the sterilization effect can be improved. It also has the advantages of the driving device overheating/overload protection mechanism and warning use. The person perceives the brightness change of the indicator light, and judges whether the UV LED is operating normally or not.

1: UV LED packaging structure 10: substrate 12: UV LED 120: light intensity 122: light time 14: driving device 140: working time 16: control device 160: detection module 1600: detection signal 162: processing module 164: Sensing module 1640: sensing signal 18: indicator light 19: package body

The first figure: it is a schematic diagram of the first embodiment of the ultraviolet LED packaging structure of the present invention; and the second figure: it is a schematic diagram of the second embodiment of the ultraviolet LED packaging structure of the present invention.

1: UV LED packaging structure

10: substrate

12: UV LED

120: light intensity

122: light time

14: drive device

16: control device

160: Detection module

1600: Detection signal

162: Processing Module

18: indicator light

19: Package body

Claims (7)

An ultraviolet LED packaging structure comprising: a substrate; an ultraviolet LED arranged on one side of the substrate; a driving device arranged on the other side of the substrate, electrically connected to the ultraviolet LED, and driving the ultraviolet LED to actuate A light intensity and a light time; a control device, arranged on one side of the substrate and the driving device, includes a detection module and a processing module, the detection module is electrically connected to the processing module to detect The light intensity and the light time are measured to generate a detection signal, the processing module is electrically connected to the driving device, receives the detection signal and controls the driving device to adjust the light intensity; an indicator light is arranged on the substrate and One side of the control device is electrically connected to the processing module, and the detection signal is received by the processing module to change the brightness state of the indicator; and a package body for the ultraviolet LED, the driving device, and the control device And the indicator light is packaged on the substrate. The ultraviolet LED package structure described in the first item of the scope of patent application, wherein the processing module controls the driving device to act, and the current and frequency input to the ultraviolet LED are adjusted by the driving device to change the light intensity and the light time . For the ultraviolet LED package structure described in the first item of the scope of patent application, the detection module includes a sensing module electrically connected to the detection module to sense the operating temperature of the driving device and the ultraviolet LED. A sensing signal is generated, the sensing signal is transmitted to the detection module, the detection signal includes the sensing signal received by the processing module, and a working time and output current intensity of the driving device are adjusted. For the ultraviolet LED package structure described in item 3 of the scope of patent application, the processing module receives the detection signal, determines whether the light intensity meets a sterilization intensity, and adjusts the working time. According to the ultraviolet LED package structure described in the first item of the patent application, the ultraviolet LED is a UVC ultraviolet light with a wavelength of 100 nm to 280 nm. In the ultraviolet LED package structure described in item 1 of the scope of patent application, the ultraviolet LED is composed of a single LED or a plurality of LEDs. For the ultraviolet LED package structure described in the first item of the patent application, the processing module receives the detection signal, determines that the light intensity does not meet a sterilization intensity, and adjusts the light intensity through the driving device.

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