Non-polar LED light-emitting device and electronic product

Abstract

The utility model provides a non-polar LED light-emitting device and an electronic product. The non-polar LED light-emitting device comprises a first driving unit, a second driving unit, a first LED unit and a second LED unit, wherein the power supply end of the first driving unit is connected with the negative electrode of the second LED unit, and the driving output end is connected with the positive electrode of the first LED unit; the power supply end of the second driving unit is connected with the negative electrode of the first LED unit, and the driving output end is connected with the positive electrode of the second LED unit; and the power supply ends of the first driving unit and the second driving unit are respectively used as a power supply positive electrode interface and a power supply negative electrode interface of the non-polar LED light-emitting device. The non-polar LED light-emitting device does not need to distinguish the positive electrode and the negative electrode of a power supply, is convenient to use, and avoids permanent damage caused by identification errors; different light-emitting effects can be obtained according to different positive and negative electrode connection modes of the power supply; and a direct-current power supply or an alternating-current power supply can be connected to further obtain more light-emitting combination modes.

Description

Technical Field

[0001] The utility model relates to the field of LED driving, in particular to a non-polarity LED lighting device and an electronic product. Background Art

[0002] An LED (light-emitting diode) is a semiconductor light-emitting device that converts electrical energy directly into light. Due to its high energy efficiency, environmental friendliness, long lifespan, fast response time, rich colors, and ease of control, LEDs are widely used in lighting, display technology, traffic signals, indicator lights, medical equipment, and plant growth.

[0003] LEDs are composed of P-type and N-type semiconductors, with their interface forming a PN junction. LEDs operate based on the principle of electroluminescence in semiconductors. When a forward voltage is applied to the LED, holes injected from the P region into the N region, and electrons injected from the N region into the P region, recombine with electrons in the N region and holes in the P region within a few microns of the PN junction, generating spontaneous fluorescence. The energy states of electrons and holes in different semiconductor materials vary; the more energy released when electrons and holes recombine, the shorter the wavelength of the emitted light.

[0004] Due to the unidirectional conductivity of LEDs, when using or packaging them, it is necessary to first identify the positive and negative poles of the LED. If this identification is incorrect, once a reverse voltage is applied to the LED, the LED may not light up at best, or even break down, causing permanent failure. In addition, the current light-emitting mode of LEDs is relatively simple.

[0005] Therefore, how to reduce the polarity judgment of LED driving power supply, avoid the risk of LED failure, and enrich the light-emitting combination mode of LED has become one of the problems that technical personnel in this field need to solve urgently. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a non-polarity LED lighting device and electronic product to solve the problems of the prior art such as the inconvenience of using LEDs and the single lighting mode.

[0007] To achieve the above-mentioned and other related purposes, the present invention provides a non-polarity LED lighting device, which at least comprises:

[0008] A first driving unit, a second driving unit, a first LED unit, and a second LED unit;

[0009] The power supply end of the first driving unit is connected to the cathode of the second LED unit, and the driving output end is connected to the anode of the first LED unit; the power supply end of the second driving unit is connected to the cathode of the first LED unit, and the driving output end is connected to the anode of the second LED unit;

[0010] The power supply ends of the first driving unit and the second driving unit serve as the positive and negative power supply interfaces of the non-polarity LED lighting device, respectively.

[0011] Optionally, the potential of the power supply terminal of the first driving unit is higher than the potential of the power supply terminal of the second driving unit, or the potential of the power supply terminal of the first driving unit is lower than the potential of the power supply terminal of the second driving unit.

[0012] Optionally, the power supply of the non-polarity LED lighting device is a DC power supply or an AC power supply.

[0013] Optionally, the first driving unit and the second driving unit both include a constant current control module, and the constant current control module performs constant current control on the current flowing through the corresponding LED unit based on the power input from the power supply end.

[0014] More optionally, the first driving unit further includes a first power conversion module, which is connected between the power supply end of the first driving unit and the input end of the constant current control module, and converts the power input from the power supply end into a DC output.

[0015] More optionally, the second driving unit further includes a second power conversion module, which is connected between the power supply end of the second driving unit and the input end of the constant current control module, and converts the power input from the power supply end into a DC output.

[0016] Optionally, the first LED unit includes N LED lamp beads, where N is a natural number greater than or equal to 2; when N is greater than or equal to 2, the LED lamp beads are connected in series or in parallel; when N is greater than or equal to 3, the LED lamp beads are connected in series, in parallel, or in series and parallel.

[0017] Optionally, the second LED unit includes M LED lamp beads, where M is a natural number greater than or equal to 2; when M is greater than or equal to 2, the LED lamp beads are connected in series or in parallel; when M is greater than or equal to 3, the LED lamp beads are connected in series, in parallel, or in series and parallel.

[0018] More optionally, the first LED unit and the second LED unit emit light of different colors.

[0019] In order to achieve the above-mentioned purpose and other related purposes, the present invention also provides an electronic product, which at least includes: the above-mentioned non-polarity LED light-emitting device.

[0020] As described above, the non-polarity LED lighting device and electronic product of the present invention have the following beneficial effects:

[0021] 1. The non-polarity LED lighting device of the present invention does not need to distinguish between the positive and negative poles of the power supply, is easy to use, and avoids permanent damage caused by identification errors.

[0022] 2. The non-polarity LED lighting device of the present invention can obtain different lighting effects according to different ways of connecting the positive and negative poles of the power supply; it can also be connected to a DC power supply or an AC power supply to further obtain more lighting combinations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Shown is a structural schematic diagram of the non-polarity LED lighting device of the present invention.

[0024] Figure 2 Shown is a schematic structural diagram of the first driving unit of the present invention.

[0025] Figure 3 Shown is a structural schematic diagram of the second drive unit of the present invention.

[0026] Figure 4 Shown is a schematic diagram of the lighting principle of the first LED unit of the present invention.

[0027] Figure 5 Shown is a schematic diagram of the lighting principle of the second LED unit of the present invention.

[0028] Component number description

[0029] 1 Non-polarity LED lighting device

[0030] 11 First drive unit

[0031] 111 First constant current control module

[0032] 112 First DC conversion module

[0033] 12 Second drive unit

[0034] 121 Second constant current control module

[0035] 122 Second DC conversion module DETAILED DESCRIPTION

[0036] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0037] See also Figures 1 to 5 It should be noted that the illustrations provided in this embodiment are merely schematic illustrations of the basic concept of the present invention. Therefore, the illustrations only show components relevant to the present invention and are not drawn according to the number, shape, and size of components in actual implementation. In actual implementation, the type, quantity, and proportion of each component may be arbitrarily changed, and the component layout may also be more complex.

[0038] like Figure 1 As shown, this embodiment provides a non-polarity LED lighting device 1, which includes:

[0039] A first driving unit 11 , a second driving unit 12 , a first LED unit LED1 , and a second LED unit LED2 .

[0040] like Figure 1 As shown, the power supply terminal V1 of the first driving unit 11 is connected to the cathode of the second LED unit LED2 , and the driving output terminal L1 is connected to the anode of the first LED unit LED1 .

[0041] Specifically, the first driving unit 11 drives the first LED unit LED1 to light up based on the power input from the power terminal V1. Figure 2 As shown, the first driving unit 11 includes a first constant current control module 111, which performs constant current control on the current flowing through the first LED unit LED1. Any control circuit structure that can achieve constant current control is applicable to the present invention and will not be described in detail here.

[0042] Furthermore, in this example, the first drive unit 11 also includes a first DC conversion module 112. The first DC conversion module 112 is connected between the power supply terminal V1 of the first drive unit 11 and the input terminal of the first constant current control module 111, and performs DC conversion on the power input from the power supply terminal V1. The first DC conversion module 112 can directly provide the input DC power to the first constant current control module 111. The first DC conversion module 112 can also perform DC-to-DC conversion on the input DC power to obtain a preset voltage value (to prevent the input power from exceeding the operating range of the first drive unit 11).

[0043] like Figure 1As shown, the power supply terminal V2 of the second driving unit 12 is connected to the cathode of the first LED unit LED1 , and the driving output terminal L2 is connected to the anode of the second LED unit LED2 .

[0044] Specifically, the second driving unit 12 drives the second LED unit LED2 to light up based on the power input from the power supply terminal V2. Figure 3 As shown, the second driving unit 12 includes a second constant current control module 121, which performs constant current control on the current flowing through the second LED unit LED2. Any control circuit structure that can achieve constant current control is applicable to the present invention and will not be described in detail here.

[0045] Furthermore, in this example, the second drive unit 12 also includes a second DC conversion module 122. The second DC conversion module 122 is connected between the power supply terminal V2 of the second drive unit 12 and the input terminal of the second constant current control module 121, and performs DC conversion on the power input from the power supply terminal V2. The function and structure of the second power conversion module 122 are the same as those of the first power conversion module 112 and are not further described here.

[0046] It should be noted that, in this embodiment, the first driving unit 11 and the second driving unit 12 are integrated on the same chip. In actual use, the first driving unit 11 and the second driving unit 12 may be two independent modules or may be composed of discrete devices.

[0047] like Figure 1 As shown, the first LED unit LED1 is controlled by the first driving unit 11 .

[0048] Specifically, the first LED unit LED1 can be configured as a single LED bead or as an LED light string. When configured as an LED light string, the first LED unit LED1 includes N LED beads, where N is a natural number greater than or equal to 2. If N is greater than or equal to 2, the LED beads are connected in series or in parallel. If N is greater than or equal to 3, the LED beads are connected in series, in parallel, or in series and parallel. The connection relationship between the LED beads can be customized as needed and is not detailed here.

[0049] like Figure 1 As shown, the second LED unit LED2 is controlled by the second driving unit 12 .

[0050] Specifically, the second LED unit LED2 can be configured as a single LED bead or as an LED light string. When configured as an LED light string, the second LED unit LED2 includes M LED beads, where N is a natural number greater than or equal to 2. If N is greater than or equal to 2, the LED beads are connected in series or in parallel; if N is greater than or equal to 3, the LED beads are connected in series, in parallel, or in series and parallel. The connection relationship between the LED beads can be configured as needed and is not detailed here. Furthermore, the number and connection relationship of the beads in the first LED unit LED1 and the second LED unit LED2 can be the same or different, depending on actual needs.

[0051] like Figure 1 As shown, the power supply ends of the first driving unit 11 and the second driving unit 12 serve as the positive and negative power supply interfaces of the non-polarity LED lighting device 1 respectively.

[0052] Specifically, as an example, the power supply terminal V1 of the first drive unit 11 serves as the positive power supply terminal, and the power supply terminal V2 of the second drive unit 12 serves as the negative power supply terminal; that is, the potential of the power supply terminal V1 of the first drive unit 11 is higher than the potential of the power supply terminal V2 of the second drive unit 12. As another example, the power supply terminal V1 of the first drive unit 11 serves as the negative power supply terminal, and the power supply terminal V2 of the second drive unit 12 serves as the positive power supply terminal; that is, the potential of the power supply terminal V1 of the first drive unit 11 is lower than the potential of the power supply terminal V2 of the second drive unit 12. In other words, the non-polarity LED lighting device 1 of the present invention can function normally without distinguishing between the positive and negative poles of the power supply.

[0053] Specifically, as an example, the power supply of the non-polarity LED lighting device 1 is a DC power supply. Figure 4 As shown, when the potential of the power supply terminal V1 is higher than the potential of the power supply terminal V2, current flows from the first driving unit 11 and drives the first LED unit LED1 to light up; no current flows through the second LED unit LED2, and the second LED unit LED2 does not light up. Figure 5 As shown, when the potential of the power supply terminal V1 is lower than the potential of the power supply terminal V2, current flows in from the second driving unit 12 and drives the second LED unit LED2 to light up; no current flows through the first LED unit LED1, and the first LED unit LED1 does not light up.

[0054] Specifically, as another example, the power source of the non-polarity LED lighting device 1 is an AC power source. Figure 4 As shown, when the potential of the power supply terminal V1 is higher than the potential of the power supply terminal V2, the first LED unit LED1 is lit and the second LED unit LED2 is not lit; Figure 5As shown, when the potential of power supply terminal V1 is lower than that of power supply terminal V2, the second LED unit LED2 is lit and the first LED unit LED1 is not lit. That is, during one cycle of the AC power supply, the first LED unit LED1 is lit for half of the time and the second LED unit LED2 is lit for the other half of the time.

[0055] It should be noted that in order to enrich the combination of LED lighting, the first LED unit LED1 and the second LED unit LED2 are set to emit different colors. As an example, when the first LED unit LED1 and the second LED unit LED2 are alternately lit, an effect of two colors of light flashing alternately can be obtained.

[0056] This embodiment further provides an electronic product, which at least includes the non-polarity LED lighting device 1 of the present invention, and is used to achieve non-polarity connection or obtain a desired lighting effect, which will not be described in detail here.

[0057] In summary, the present invention provides a non-polarity LED lighting device and electronic product, comprising: a first drive unit, a second drive unit, a first LED unit, and a second LED unit; wherein the power supply end of the first drive unit is connected to the cathode of the second LED unit, and the drive output end is connected to the anode of the first LED unit; the power supply end of the second drive unit is connected to the cathode of the first LED unit, and the drive output end is connected to the anode of the second LED unit; the power supply ends of the first drive unit and the second drive unit serve as the positive and negative power supply interfaces of the non-polarity LED lighting device, respectively. The non-polarity LED lighting device of the present invention does not require distinguishing between the positive and negative poles of the power supply, is easy to use, and avoids permanent damage caused by identification errors; different lighting effects can be obtained according to different ways of connecting the positive and negative poles of the power supply; and can also be connected to a DC power supply or an AC power supply to further obtain more lighting combinations. Therefore, the present invention effectively overcomes the various shortcomings of the existing technology and has high industrial utilization value.

[0058] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed in the present invention are intended to be covered by the claims of the present invention.

Claims

1. A non-polar LED light-emitting device, characterized in that: The non-polarity LED lighting device at least comprises: A first driving unit, a second driving unit, a first LED unit, and a second LED unit; The power supply end of the first driving unit is connected to the cathode of the second LED unit, and the driving output end is connected to the anode of the first LED unit; the power supply end of the second driving unit is connected to the cathode of the first LED unit, and the driving output end is connected to the anode of the second LED unit; The power supply ends of the first driving unit and the second driving unit serve as the positive and negative power supply interfaces of the non-polarity LED lighting device, respectively.

2. The non-polarity LED lighting device according to claim 1, characterized in that: The potential of the power supply terminal of the first driving unit is higher than the potential of the power supply terminal of the second driving unit, or the potential of the power supply terminal of the first driving unit is lower than the potential of the power supply terminal of the second driving unit.

3. The non-polarity LED lighting device according to claim 1, characterized in that: The power supply of the non-polarity LED lighting device is a DC power supply or an AC power supply.

4. The non-polarity LED lighting device according to claim 1, characterized in that: The first driving unit and the second driving unit each include a constant current control module. The constant current control module performs constant current control on the current flowing through the corresponding LED unit based on the power input from the power supply end.

5. The non-polarity LED lighting device according to claim 4, characterized in that: The first driving unit further includes a first DC conversion module, which is connected between the power supply terminal of the first driving unit and the input terminal of the constant current control module and performs DC conversion on the power input from the power supply terminal.

6. The non-polarity LED lighting device according to claim 4, characterized in that: The second driving unit further includes a second DC conversion module, which is connected between the power supply terminal of the second driving unit and the input terminal of the constant current control module and performs DC conversion on the power input from the power supply terminal.

7. The non-polarity LED lighting device according to claim 1, characterized in that: The first LED unit includes N LED lamp beads, where N is a natural number greater than or equal to 2; when N is greater than or equal to 2, the LED lamp beads are connected in series or in parallel; when N is greater than or equal to 3, the LED lamp beads are connected in series, in parallel, or in series and parallel.

8. The non-polarity LED lighting device according to claim 1, characterized in that: The second LED unit includes M LED lamp beads, where M is a natural number greater than or equal to 2; when M is greater than or equal to 2, the LED lamp beads are connected in series or in parallel; When M is greater than or equal to 3, the LED lamp beads are connected in series, in parallel, or in series and parallel.

9. The non-polarity LED lighting device according to any one of claims 1 to 8, characterized in that: The first LED unit and the second LED unit emit light of different colors.

10. An electronic product, characterized in that: The electronic product at least comprises: the non-polarity LED light-emitting device according to any one of claims 1-9.

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