CN217584148U

CN217584148U - Electrodeless lamp string without rectification

Info

Publication number: CN217584148U
Application number: CN202221510219.2U
Authority: CN
Inventors: 吴青安; 王碧海; 黄雅莹
Original assignee: Zhangzhou Guanyu Lighting Co Ltd
Current assignee: Zhangzhou Guanyu Lighting Co Ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-10-14
Anticipated expiration: 2032-06-16

Abstract

The utility model discloses a non-rectifying electrodeless lamp string, which comprises an LED module connected in parallel between a pair of connecting wires, wherein the LED module consists of a current-limiting resistor and an LED component, one end of the current-limiting resistor is connected to one of the connecting wires, and the LED component is sequentially connected in series at the other end of the current-limiting resistor and connected to the other connecting wire; this scheme ingeniously is integrated as an organic whole through a pair of emitting diode with the LED subassembly, make the illuminating part interval control of the two within 1mil, the positive negative pole that combines a pair of emitting diode connects in reverse parallel, can make under the alternating current power supply, a pair of emitting diode of LED subassembly is in the power supply alternating current cycle of commercial power, guarantee a emitting diode all the time and be in the bright state, simultaneously, two emitting diode are in bright conversion process that goes out, because the interval of the two is within 1mil, make the emitting diode that lights can fast illumination cover the illumination region of a luminous emitting diode that lights up, therefore, can avoid visual stroboscopic effectively from the vision.

Description

Electrodeless lamp string without rectification

Technical Field

The utility model relates to a LED lamps and lanterns field especially relates to an electrodeless lamp cluster of no rectification.

Background

The LED lamp is widely used in various fields because of its advantages such as low power consumption, low heat generation, and long service life; for example, a plurality of LED lamps are connected in series or in parallel to form an LED lamp strip or a lamp string which is used for environment atmosphere rendering. The LED lamp string mainly means that an LED lamp bead and a chip resistor are assembled on a strip-shaped FPC (flexible printed circuit) or PCB (printed circuit board) hard board, then encapsulation and other processes are carried out, and meanwhile, an external rectifier bridge power supply is added for power supply and lighting.

With the wide application of LED lamps, under diversified scene applications, some problems of LED light strings are discovered and paid attention to, the stroboscopic effect of LED lamps is a technical problem of LED lamps, which is currently being studied in the field, and professional data shows that the stroboscopic effect of LED light sources is that light emitted by the light sources shows a change of a certain frequency and a certain period with time, and changes between different brightness and colors with time. The serious stroboflash can cause illusion to human eyes, further cause accident or physiological discomfort, it needs to be noted that human eyes are very complicated system, individual difference is very big, for most people, can perceive the light flicker below 80Hz, human eyes can perceive the light and shade change at this moment, the flicker frequency is below 80Hz and is also called visible stroboflash (visible flicker), therefore, the visible stroboflash is unacceptable for ordinary illumination or display, and for the stroboflash above 80Hz, human eyes are not easy to detect, but have great influence on the space perception of human eyes. For example, a moving object is considered to be a series of still images, i.e., a Stroboscopic effect (strobospic effect). The illusion is created by the stroboscopic effect and it is very dangerous to see some fast running devices as running slowly or even stationary.

The stroboflash problem of the LED lamp string serving as an important lamp for supporting the environment atmosphere is not negligible, and some designers consider that a pure and constant current source is required to be obtained to ensure that the LED lighting lamp has no stroboflash based on the stroboflash technical problem of the LED lamp, and the LED driving power supply is the biggest key. At present, it is possible that the LED power supply simply makes it satisfy no stroboflash, and it has following three kinds of modes roughly to carry out technical level and improves or solve LED lamp stroboflash problem: 1. the output electrolytic capacitance is increased. 2. A valley-filled passive PFC scheme is employed. 3. A two-stage approach is employed. In the scheme of practical solution, part of designers connect two LED lamps in parallel in a reverse direction on an LED assembly of an LED light string, and then set a capacitor and a rectifier bridge on a power supply lead to weaken the stroboflash problem, so that when the LED light string is powered by mains supply, only one LED chip in a half cycle is on and the other LED chip is off in an alternating current cycle of the mains supply, under the condition that the capacitor is introduced, because the capacitor has charge-discharge characteristics, when waveforms in a cycle of the alternating current are alternated, the capacitor can self-discharge, so that in the alternating current cycle, the capacitor can automatically charge and discharge according to the cycle condition of the alternating current, and when the capacitor discharges, the off time of the LED lamps which are on during charging can be prolonged, so that a pair of LED lamps with the reverse connection and parallel connection of the positive and negative electrodes can have better on-off alternative transition, thus visually, a user can hardly perceive flickering of the LED light string, but it is understood that electronic elements in the LED light string have relatively high cost, and at the same time, factors which may cause failures are increased, and the electronic elements can be simplified as much as possible, and how to research on the market significance is still ensured.

Disclosure of Invention

In view of this, the present invention provides a non-rectifying electrodeless lamp string that is reliable in implementation, stable in use, and capable of effectively avoiding visual stroboflash.

In order to realize the technical purpose, the utility model adopts the technical scheme that:

a non-rectifying electrodeless lamp string comprises a pair of connecting wires for connecting to a power supply and more than one LED module connected in parallel between the pair of connecting wires, wherein the LED module consists of a current-limiting resistor and more than one LED assembly, one end of the current-limiting resistor is connected to one of the connecting wires, and the more than one LED assembly is sequentially connected in series with the other end of the current-limiting resistor and connected to the other connecting wire;

the LED assembly comprises a pair of light emitting diodes, wherein the positive and negative electrodes of the pair of light emitting diodes are reversely connected in parallel;

in addition, a pair of light emitting diodes of the LED assembly are integrated, and the distance between the light emitting parts of the pair of light emitting diodes is within 1 mil.

As a possible implementation manner, further, the LED assembly of this embodiment further includes a lamp bowl, and the pair of light emitting diodes are located in the same lamp bowl.

As a possible implementation manner, in the present invention, the illumination angles of the pair of light emitting diodes of the LED module are both 15 to 60 degrees.

As a possible implementation manner, further, the power supply in the present scheme is commercial power.

As a possible implementation manner, further, the scheme further comprises a front plug and a tail plug, wherein the front plug is connected to one end of the pair of connecting wires, and the tail plug is connected to the other end of the pair of connecting wires.

As a preferred alternative, in this embodiment, a fuse is preferably provided on each of the pair of connecting wires or on one of the connecting wires.

As a preferred alternative, the fuse in this embodiment is preferably a 3A, 125V fuse.

As a possible implementation manner, further, in this solution, the current limiting resistor is a 1206 chip resistor, and the resistance value thereof is 3K.

As a preferred alternative, it is preferable that the pair of light emitting diodes of the LED assembly of this embodiment are both same color light emitting diodes.

Adopt foretell technical scheme, compared with the prior art, the utility model, its beneficial effect who has is: the LED module has the advantages that a pair of LEDs of the LED module is integrated ingeniously, the distance between the light emitting parts of the LED module and the LED module is controlled within 1mil, the positive and negative electrodes of the pair of LEDs are connected in parallel in an inverse mode, the pair of LEDs of the LED module can be enabled to be in a power supply alternating current period of a mains supply under the condition of alternating current power supply, one LED is always guaranteed to be in a lighting state, meanwhile, the two LEDs are in a lighting and extinguishing conversion process, the distance between the two LEDs is within 1mil, the lighting area of the lighting LED can be quickly illuminated to cover the lighting area of the lighting LED, therefore, visual stroboflash can be effectively avoided visually, the limitation that the LED is subjected to visual stroboflash by relying on a capacitor in the traditional scheme can be avoided, meanwhile, the rectifier bridge can be further depended on, the lighting angle of the pair of LEDs of the LED module can be 15-60 degrees under the implementation structure, the angle range can effectively avoid the problem of visual stroboflash, when a plurality of LED modules are connected in series to form a light string unit, the LED module can reliably work, and the LED module can provide effective lighting effect for users.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic connection diagram of a structural module for a simplified implementation of the present invention;

FIG. 2 is a schematic circuit connection diagram of a schematic implementation structure of the scheme of the present invention;

fig. 3 is a schematic diagram of connection of an expanded implementation structural module according to the solution of the present invention;

fig. 4 is a schematic structural view of a brief part of the LED assembly according to the present invention, in which the layout position relationship of a pair of LEDs is mainly shown;

fig. 5 is a schematic view of an irradiation area of a pair of light emitting diodes of the LED module according to the present invention when the illumination angle is 15 degrees;

fig. 6 is a schematic view of an irradiation area of a pair of light emitting diodes of the LED module according to the present invention when the illumination angle is 60 degrees.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only for illustrating the present invention, but do not limit the scope of the present invention. Similarly, the following embodiments are only some but not all embodiments of the present invention, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

As shown in fig. 1 or fig. 2, the non-rectifying electrodeless lamp string in the embodiment includes a pair of connection wires 1 for connecting to a power supply (mains) and one or more LED modules 2 connected in parallel between the pair of connection wires 1, where the LED modules 2 are composed of a current-limiting resistor 21 and one or more LED components 22, one end of the current-limiting resistor 21 is connected to one of the connection wires 1, and the one or more LED components 22 are sequentially connected in series at the other end of the current-limiting resistor 21 and connected to the other connection wire 1.

With particular reference to fig. 2, the LED assembly 22 according to the present embodiment includes a pair of light emitting diodes 221, the positive and negative electrodes of the pair of light emitting diodes 221 are connected in parallel in an inverse manner, and the pair of light emitting diodes 221 of the LED assembly 22 according to the present embodiment are all homochromatic light emitting diodes.

In addition to fig. 1 and 2, as shown in fig. 4, the pair of light emitting diodes 221 of the LED module 22 according to the present embodiment are integrated, and the distance L between the light emitting parts of the pair of light emitting diodes 221 is within 1 mil.

On the basis of fig. 1 and 2, and with further reference to one of fig. 4 to 6, in order to avoid visible stroboscopic, the LED assembly 22 according to the present embodiment further includes a lamp bowl 222, and a pair of light emitting diodes 221 are located in the same lamp bowl 222; wherein, the illumination angles of the pair of light emitting diodes 221 of the LED assembly 22 are both 15 to 60 degrees, which may be 15 degrees, 30 degrees, 45 degrees or 60 degrees, and fig. 5 shows a schematic view of the illumination area of the pair of light emitting diodes 221 of the LED assembly 22 when the illumination angle is 15 degrees; it can be known that when the illumination angle of the pair of light emitting diodes 221 is 15 degrees, the junction of the illumination area ranges of the two does not exceed the space range covered by the lamp bowl 222; fig. 6 schematically shows the illumination areas of the pair of light emitting diodes 221 of the LED assembly 22 at an illumination angle of 60 degrees, and it can be known that the intersection of the illumination areas of the pair of light emitting diodes 221 at an illumination angle of 15 degrees does not exceed the spatial range covered by the lamp bowl 222.

As shown in fig. 3, in order to facilitate the serial connection of a plurality of lamp strips, the present solution further includes a front plug 4 and a tail plug 5, where the front plug 4 is connected to one end of a pair of connecting wires 1, and the tail plug 5 is connected to the other end of the pair of connecting wires 1; the front plug 4 and the tail plug 5 are plug-in structures capable of being matched with each other, under the structural form, the scheme can form a combined lamp string with a longer length by serially connecting a plurality of electrodeless lamp strings, and the combined lamp string serially connected by the plurality of electrodeless lamp strings can be detached independently after the combined lamp string is used, so that the combined lamp string is convenient to be applied on site more flexibly.

In order to avoid the abnormality of short circuit of the lamp string caused by overlarge current, in the scheme, a pair of connecting wires 1 are provided with fuses or one of the connecting wires is provided with a fuse 3; as a preferred alternative, preferably, the fuse in the embodiment may be a 3A, 125V fuse, but is not limited to this, and it may also be a fuse with other operating parameters; in a possible implementation manner of the selection of the current limiting resistor 21, further, in this embodiment, the current limiting resistor 21 is a 1206 chip resistor, and the resistance value of the current limiting resistor is 3K.

By adopting the scheme of the embodiment, the working principle is as follows:

after the electrodeless lamp string in the present embodiment is connected to the mains supply, the positive half cycle of the ac power supplied and input by the mains supply passes through one of the light emitting diodes 221 of the LED assembly 22, so that the LED assembly 22 lights up, and when the negative half cycle of the ac power passes through the other light emitting diode 221 of the LED assembly 22, that is, the pair of light emitting diodes 221 of the LED assembly 22 switches their operation, because the distance L between the light emitting parts of the pair of light emitting diodes 221 is within 1mil, and the persistence of vision and the effect of the fluorescent material afterglow are added, at this time, the alternating process cannot be seen by the eyes of the user, and the effect of preventing the stroboflash of the lamp string is achieved.

The above only is the partial embodiment of the utility model discloses a not therefore restriction the utility model discloses a protection scope, all utilize the utility model discloses equivalent device or equivalent flow transform that the content of description and drawing was done, or direct or indirect application in other relevant technical field, all the same reason is included in the patent protection scope of the utility model.

Claims

1. A non-rectifying electrodeless lamp string comprises a pair of connecting wires for connecting to a power supply and more than one LED module connected in parallel between the pair of connecting wires, and is characterized in that the LED module consists of a current-limiting resistor and more than one LED component, one end of the current-limiting resistor is connected to one of the connecting wires, and the more than one LED components are sequentially connected in series to the other end of the current-limiting resistor and connected to the other connecting wire;

in addition, the pair of light emitting diodes of the LED assembly are integrated, and the distance between the light emitting parts of the pair of light emitting diodes is within 1 mil.

2. The non-rectifying electrodeless lamp string as recited in claim 1, wherein the LED assembly further comprises a lamp bowl, and the pair of LEDs are located in the same lamp bowl.

3. The light string of commutatorless electrodeless lamps as recited in claim 1, wherein said pair of LEDs of said LED assembly each illuminate between 15 and 60 degrees.

4. The non-rectifying electrodeless lamp string as recited in claim 1, wherein the power supply is mains power.

5. The non-rectifying electrodeless lamp string as recited in claim 1, further comprising a front plug connected to one end of the pair of connecting wires and a tail plug connected to the other end of the pair of connecting wires.

6. A string of rectificationless electrodeless lamps as claimed in any one of claims 1 to 5, wherein a fuse is provided on each of the pair of connecting leads or on one of the connecting leads.

7. The commutatorless electrodeless lamp string as recited in claim 6, wherein said fuse is a 3A, 125V fuse.

8. The non-rectifying electrodeless lamp string as claimed in claim 1 wherein the current limiting resistor is a 1206 chip resistor having a resistance of 3K.

9. The non-rectifying electrodeless lamp string as claimed in any one of claims 1, 2, 3, 4, 5 and 8 wherein each of the pair of LEDs of the LED assembly is a same color LED.