Radio frequency anti-fake LED drive circuit board and LED power supply

Abstract

The utility model provides a radio frequency anti-fake LED drive circuit board and an LED power supply. The radio frequency anti-fake LED driving circuit board comprises a circuit substrate and an LED radio frequency reading module. The LED radio frequency reading module comprises an LED driving master controller, a radio frequency anti-counterfeiting module and an anti-counterfeiting protective film, the current feedback end of the LED driving master controller is electrically connected with the power supply end of the radio frequency anti-counterfeiting module, the LED driving master controller and the radio frequency anti-counterfeiting module are both connected with the anti-counterfeiting protective film, and the anti-counterfeiting protective film is further connected with the circuit substrate. If the radio frequency anti-counterfeiting module needs to be dismantled, the anti-counterfeiting protection film must be torn firstly, the LED driving master controller and the radio frequency anti-counterfeiting module are packaged on the circuit substrate through the anti-counterfeiting protection film at the same time, and when the anti-counterfeiting protection film is torn, the LED driving master controller and the radio frequency anti-counterfeiting module are damaged at the same time through the anti-counterfeiting protection film. The condition that the radio frequency anti-counterfeiting module is independently disassembled can be avoided, so that the anti-damage capability of the radio frequency function is effectively improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of LED power supplies, and in particular to a radio frequency anti-counterfeiting LED driving circuit board and an LED power supply. Background Art

[0002] With the development of LED lighting industry, the competition between branded light source devices and circulating electric light source devices is becoming more and more fierce, and there are phenomena such as counterfeit and inferior products and counterfeiting that disrupt the market. In order to improve the anti-counterfeiting level, wireless radio frequency identification technology is usually used. The existing wireless radio frequency identification technology implants RFID chips into LED power sources, writes key information such as production time, production serial number, and shipping area into the RFID chip, and uses special reading and writing equipment to read relevant information during market inspections, so as to identify whether it is genuine and whether it is counterfeiting.

[0003] However, the traditional RFID chip is separated from the LED driver power supply and is independently set. When the RFID chip is damaged or removed, the LED driver power supply can still be used normally. Without the key information stored in the RFID chip, the traceability information of the LED driver power supply cannot be obtained. Utility Model Content

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a radio frequency anti-counterfeiting LED driving circuit board and an LED power supply that effectively improve the anti-destruction capability of radio frequency functions.

[0005] The purpose of this disclosure is achieved through the following technical solutions:

[0006] A radio frequency anti-counterfeiting LED driver circuit board comprises: a circuit substrate and an LED radio frequency reading module; the circuit substrate has a driving anti-counterfeiting area; the LED radio frequency reading module comprises an LED driver main controller, a radio frequency anti-counterfeiting module and an anti-counterfeiting protective film, the LED driver main controller and the radio frequency anti-counterfeiting module are welded in the driving anti-counterfeiting area, the current feedback end of the LED driver main controller is electrically connected to the power supply end of the radio frequency anti-counterfeiting module, the anti-counterfeiting protective film is located on a side of the LED driver main controller away from the circuit substrate, the LED driver main controller and the radio frequency anti-counterfeiting module are both connected to the anti-counterfeiting protective film, and the anti-counterfeiting protective film is also connected to the circuit substrate.

[0007] In one embodiment, the anti-counterfeiting protective film is covered on the pad surface of the circuit substrate.

[0008] In one embodiment, the RF anti-counterfeiting module includes a RF anti-counterfeiting chip and a RF anti-counterfeiting antenna, the RF anti-counterfeiting chip and the RF anti-counterfeiting antenna are both arranged on the circuit substrate, and the reading end of the RF anti-counterfeiting chip is electrically connected to the RF anti-counterfeiting antenna.

[0009] In one embodiment, the radio frequency anti-counterfeiting antenna is located within the driving anti-counterfeiting area, and the radio frequency anti-counterfeiting antenna is connected to the anti-counterfeiting protective film.

[0010] In one embodiment, the LED radio frequency reading module further includes a feedback current limiting resistor, the feedback current limiting resistor is disposed within the driving anti-counterfeiting area, and two ends of the feedback current limiting resistor are electrically connected to a current feedback end of the LED driving main controller and a power supply end of the radio frequency anti-counterfeiting module, respectively.

[0011] In one embodiment, the LED radio frequency reading module further includes a driving voltage dividing resistor, the driving voltage dividing resistor is disposed within the driving anti-counterfeiting area, and the driving voltage dividing resistor is connected in parallel with a zero current detection input end of the LED driving main controller.

[0012] In one embodiment, the LED radio frequency reading module further includes a driving power supply diode, the driving power supply diode is disposed within the driving anti-counterfeiting area, a positive electrode of the driving power supply diode is used for being electrically connected to a same name end of a secondary side of a driving transformer, and a negative electrode of the driving power supply diode is electrically connected to a power supply end of the LED driving main controller.

[0013] In one embodiment, the anti-counterfeiting protective film coincides with the driving anti-counterfeiting area.

[0014] In one embodiment, the anti-counterfeiting protective film is an epoxy resin fixing film.

[0015] An LED power supply includes the radio frequency anti-counterfeiting LED driving circuit board according to any one of the above embodiments.

[0016] Compared with the prior art, the present disclosure has at least the following advantages:

[0017] If the radio frequency anti-counterfeiting module is to be removed, the anti-counterfeiting protective film must be torn off first, and the anti-counterfeiting protective film encapsulates the LED driving main controller and the radio frequency anti-counterfeiting module on the circuit board at the same time. When the anti-counterfeiting protective film is torn off, the anti-counterfeiting protective film will damage the LED driving main controller and the radio frequency anti-counterfeiting module at the same time, which can avoid the situation of separately removing the radio frequency anti-counterfeiting module, thereby effectively improving the anti-destruction ability of the radio frequency function. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present disclosure, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 Schematic diagram of the RF anti-counterfeiting LED driver circuit board in one embodiment;

[0020] Figure 2 Schematic diagram of the RF anti-counterfeiting LED driver circuit board in another embodiment. Detailed implementation manners

[0021] To facilitate the understanding of the present disclosure, the present disclosure will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the understanding of the disclosure content of the present disclosure is more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiments.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present disclosure belongs. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] The present disclosure relates to a radio frequency anti-counterfeiting LED driving circuit board. In one embodiment, the radio frequency anti-counterfeiting LED driving circuit board includes a circuit substrate and an LED radio frequency reading module; the circuit substrate has a driving anti-counterfeiting area; the LED radio frequency reading module includes an LED driving main controller, a radio frequency anti-counterfeiting module, and an anti-counterfeiting protective film. The LED driving main controller and the radio frequency anti-counterfeiting module are soldered in the driving anti-counterfeiting area. The current feedback terminal of the LED driving main controller is electrically connected to the power supply terminal of the radio frequency anti-counterfeiting module. The anti-counterfeiting protective film is located on the side of the LED driving main controller facing away from the circuit substrate. The LED driving main controller and the radio frequency anti-counterfeiting module are both connected to the anti-counterfeiting protective film, and the anti-counterfeiting protective film is also connected to the circuit substrate. If the radio frequency anti-counterfeiting module needs to be removed, the anti-counterfeiting protective film must be torn off first. The anti-counterfeiting protective film encapsulates the LED driving main controller and the radio frequency anti-counterfeiting module on the circuit substrate at the same time. When the anti-counterfeiting protective film is torn off, the anti-counterfeiting protective film will damage the LED driving main controller and the radio frequency anti-counterfeiting module at the same time, which can avoid the situation of removing the radio frequency anti-counterfeiting module alone, thereby effectively improving the anti-destruction ability of the radio frequency function.

[0025] Please refer to Figure 1 , which is a schematic structural diagram of a radio frequency anti-counterfeiting LED driving circuit board according to an embodiment of the present disclosure.

[0026] A radio frequency anti-counterfeiting LED driving circuit board 10 according to an embodiment includes a circuit substrate 100 and an LED radio frequency reading module 200. The circuit substrate 100 has a driving anti-counterfeiting area 110. Please refer to Figure 2 together, the LED radio frequency reading module 200 includes an LED driving main controller 210, a radio frequency anti-counterfeiting module 220, and an anti-counterfeiting protective film 230. The LED driving main controller 210 and the radio frequency anti-counterfeiting module 220 are soldered in the driving anti-counterfeiting area 110. The current feedback terminal of the LED driving main controller 210 is electrically connected to the power supply terminal of the radio frequency anti-counterfeiting module 220. The anti-counterfeiting protective film 230 is located on the side of the LED driving main controller 210 facing away from the circuit substrate 100. The LED driving main controller 210 and the radio frequency anti-counterfeiting module 220 are both connected to the anti-counterfeiting protective film 230, and the anti-counterfeiting protective film 230 is also connected to the circuit substrate 100.

[0027] In this embodiment, if the RF anti-counterfeiting module 220 is to be removed, the anti-counterfeiting protective film 230 must be torn off first. The anti-counterfeiting protective film 230 encapsulates the LED driving main controller 210 and the RF anti-counterfeiting module 220 on the circuit board 100 at the same time. When the anti-counterfeiting protective film 230 is torn off, the anti-counterfeiting protective film 230 will damage the LED driving main controller 210 and the RF anti-counterfeiting module 220 at the same time, which can avoid the situation of removing the RF anti-counterfeiting module 220 alone, thereby effectively improving the anti-destruction ability of the RF function.

[0028] In another embodiment, the anti-counterfeiting protective film 230 is an epoxy resin fixing film.

[0029] In one of the embodiments, please refer to Figure 1 , the anti-counterfeiting protective film 230 covers the solder pad surface of the circuit board 100. In this embodiment, the anti-counterfeiting protective film 230 is located on the solder pad surface of the circuit board 100, that is, the anti-counterfeiting protective film 230 encapsulates the electronic components on the surface of the circuit board 100 with solder pads, which is convenient for covering and encapsulating the LED driving main controller 210 and the RF anti-counterfeiting module 220 on the circuit board 100.

[0030] In one of the embodiments, please refer to Figure 2 , the RF anti-counterfeiting module 220 includes an RF anti-counterfeiting chip 222 and an RF anti-counterfeiting antenna (not shown in the figure). The RF anti-counterfeiting chip 222 and the RF anti-counterfeiting antenna are both arranged on the circuit board 100, and the reading end of the RF anti-counterfeiting chip 222 is electrically connected to the RF anti-counterfeiting antenna. In this embodiment, the RF anti-counterfeiting chip 222 is used as a writing chip for key information such as production time, production serial number, and shipping area, and the RF anti-counterfeiting chip 222 stores the above key information. The RF anti-counterfeiting antenna is used as a reading sensor for the RF anti-counterfeiting chip 222, and can quickly read the key information in the RF anti-counterfeiting chip 222 when the reader approaches.

[0031] Furthermore, the RF anti-counterfeiting antenna is located in the driving anti-counterfeiting area 110, and the RF anti-counterfeiting antenna is connected to the anti-counterfeiting protective film 230. In this embodiment, the RF anti-counterfeiting chip 222 and the RF anti-counterfeiting antenna are both located in the driving anti-counterfeiting area 110, and the anti-counterfeiting protective film 230 covers the RF anti-counterfeiting chip 222 and the RF anti-counterfeiting antenna at the same time, which is convenient for encapsulating the key components of the RF function and avoiding damage to the RF anti-counterfeiting module 220.

[0032] In one of the embodiments, please refer to Figure 2, the LED radio frequency reading module 200 further includes a feedback current limiting resistor 240. The feedback current limiting resistor 240 is disposed in the driving anti-counterfeiting area 110. Two ends of the feedback current limiting resistor 240 are electrically connected to the current feedback terminal of the LED driving main controller 210 and the power supply terminal of the radio frequency anti-counterfeiting module 220 respectively. In this embodiment, the feedback current limiting resistor 240 is located on the circuit board 100. Moreover, the feedback current limiting resistor 240 is located between the LED driving main controller 210 and the radio frequency anti-counterfeiting module 220, facilitating the connection of the feedback current limiting resistor 240 in series between the current feedback terminal of the LED driving main controller 210 and the power supply terminal of the radio frequency anti-counterfeiting module 220. In this way, when the anti-counterfeiting protective film 230 is encapsulated, key components such as the feedback current limiting resistor 240 are encapsulated together to improve the anti-destruction ability of the feedback current limiting resistor 240.

[0033] In one embodiment, please refer to Figure 2 , the LED radio frequency reading module 200 further includes a driving voltage dividing resistor 250. The driving voltage dividing resistor 250 is disposed in the driving anti-counterfeiting area 110. The driving voltage dividing resistor 250 is connected in parallel with the zero current detection input terminal of the LED driving main controller 210. In this embodiment, the driving voltage dividing resistor 250 is located on the circuit board 100. Moreover, the driving voltage dividing resistor 250 is located between the LED driving main controller 210 and the radio frequency anti-counterfeiting module 220, facilitating the connection of the driving voltage dividing resistor 250 in parallel on the zero current detection input terminal of the LED driving main controller 210. In this way, when the anti-counterfeiting protective film 230 is encapsulated, key components such as the driving voltage dividing resistor 250 are encapsulated together to improve the anti-destruction ability of the driving voltage dividing resistor 250.

[0034] In one embodiment, please refer to Figure 2 , the LED radio frequency reading module 200 further includes a driving power supply diode 260. The driving power supply diode 260 is disposed in the driving anti-counterfeiting area 110. The positive electrode of the driving power supply diode 260 is used to be electrically connected to the same name terminal of the secondary side of the driving transformer, and the negative electrode of the driving power supply diode 260 is electrically connected to the power supply terminal of the LED driving main controller 210. In this embodiment, the driving power supply diode 260 is located on the circuit board 100. Moreover, the driving power supply diode 260 is located between the LED driving main controller 210 and the radio frequency anti-counterfeiting module 220, facilitating the connection of the driving power supply diode 260 in series on the power supply terminal of the LED driving main controller 210. In this way, when the anti-counterfeiting protective film 230 is encapsulated, key components such as the driving power supply diode 260 are encapsulated together to improve the anti-destruction ability of the driving power supply diode 260.

[0035] In one of the embodiments, refer to Figure 1 , the anti-counterfeiting protective film 230 coincides with the driving anti-counterfeiting area 110. In this embodiment, the area of the anti-counterfeiting protective film 230 is equal to the area of the driving anti-counterfeiting area 110, which is convenient for the anti-counterfeiting protective film 230 to encapsulate all the key radio frequency traceability components in the radio frequency anti-counterfeiting LED driving circuit board.

[0036] In one of the embodiments, the present disclosure also relates to an LED power supply, including the radio frequency anti-counterfeiting LED driving circuit board described in any of the above embodiments. In this embodiment, the radio frequency anti-counterfeiting LED driving circuit board includes a circuit substrate and an LED radio frequency reading module; the circuit substrate has a driving anti-counterfeiting area; the LED radio frequency reading module includes an LED driving main controller, a radio frequency anti-counterfeiting module, and an anti-counterfeiting protective film. The LED driving main controller and the radio frequency anti-counterfeiting module are welded in the driving anti-counterfeiting area. The current feedback terminal of the LED driving main controller is electrically connected to the power supply terminal of the radio frequency anti-counterfeiting module. The anti-counterfeiting protective film is located on the side of the LED driving main controller facing away from the circuit substrate. The LED driving main controller and the radio frequency anti-counterfeiting module are both connected to the anti-counterfeiting protective film, and the anti-counterfeiting protective film is also connected to the circuit substrate. If the radio frequency anti-counterfeiting module needs to be removed, the anti-counterfeiting protective film must be torn off first. The anti-counterfeiting protective film encapsulates the LED driving main controller and the radio frequency anti-counterfeiting module on the circuit substrate at the same time. When the anti-counterfeiting protective film is torn off, the anti-counterfeiting protective film will damage the LED driving main controller and the radio frequency anti-counterfeiting module at the same time, which can avoid the situation of separately removing the radio frequency anti-counterfeiting module, thereby effectively improving the anti-destruction ability of the radio frequency function.

[0037] The above embodiments only represent several implementation manners of the present disclosure, and their descriptions are relatively specific and detailed, but should not be construed as a limitation on the scope of the present disclosure patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present disclosure, several modifications and improvements can still be made, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure patent should be subject to the appended claims.

Claims

1. A radio frequency anti-counterfeiting LED driving circuit board, characterized in that, Comprising: A circuit board having a driving anti-counterfeiting area; An LED radio frequency reading module, the LED radio frequency reading module includes an LED driving main controller, a radio frequency anti-counterfeiting module, and an anti-counterfeiting protective film. The LED driving main controller and the radio frequency anti-counterfeiting module are soldered in the driving anti-counterfeiting area. The current feedback terminal of the LED driving main controller is electrically connected to the power supply terminal of the radio frequency anti-counterfeiting module. The anti-counterfeiting protective film is located on the side of the LED driving main controller away from the circuit board. The LED driving main controller and the radio frequency anti-counterfeiting module are both connected to the anti-counterfeiting protective film, and the anti-counterfeiting protective film is also connected to the circuit board.

2. The RF anti-counterfeiting LED driver circuit board according to claim 1, characterized in that, The anti-counterfeiting protective film covers the solder surface of the circuit board.

3. The RF anti-counterfeiting LED driver circuit board according to claim 1, characterized in that, The radio frequency anti-counterfeiting module includes a radio frequency anti-counterfeiting chip and a radio frequency anti-counterfeiting antenna. The radio frequency anti-counterfeiting chip and the radio frequency anti-counterfeiting antenna are both arranged on the circuit board, and the reading terminal of the radio frequency anti-counterfeiting chip is electrically connected to the radio frequency anti-counterfeiting antenna.

4. The RF anti-counterfeiting LED driving circuit board according to claim 3, characterized in that The radio frequency anti-counterfeiting antenna is located in the driving anti-counterfeiting area, and the radio frequency anti-counterfeiting antenna is connected to the anti-counterfeiting protective film.

5. The RF anti-counterfeiting LED driving circuit board according to claim 1, characterized in that, The LED radio frequency reading module further includes a feedback current limiting resistor. The feedback current limiting resistor is arranged in the driving anti-counterfeiting area, and both ends of the feedback current limiting resistor are electrically connected to the current feedback terminal of the LED driving main controller and the power supply terminal of the radio frequency anti-counterfeiting module respectively.

6. The RF anti-counterfeiting LED driving circuit board according to claim 1, characterized in that, The LED radio frequency reading module further includes a driving voltage dividing resistor. The driving voltage dividing resistor is arranged in the driving anti-counterfeiting area, and the driving voltage dividing resistor is connected in parallel with the zero current detection input terminal of the LED driving main controller.

7. The RF anti-counterfeiting LED driving circuit board according to claim 1, wherein The LED radio frequency reading module further includes a driving power supply diode. The driving power supply diode is arranged in the driving anti-counterfeiting area. The positive electrode of the driving power supply diode is used to be electrically connected to the same name terminal of the secondary side of the driving transformer, and the negative electrode of the driving power supply diode is electrically connected to the power supply terminal of the LED driving main controller.

8. The RF anti-counterfeiting LED driving circuit board according to claim 1, characterized in that The anti-counterfeiting protective film coincides with the driving anti-counterfeiting area.

9. The RF anti-counterfeiting LED driving circuit board according to claim 1, characterized in that, The anti-counterfeiting protective film is an epoxy resin fixing adhesive film.

10. An LED power supply, characterized in that, Including the radio frequency anti-counterfeiting LED driving circuit board according to any one of claims 1 to 9.

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