CN216976551U

CN216976551U - LED module and LED lamp string

Info

Publication number: CN216976551U
Application number: CN202220531414.7U
Authority: CN
Inventors: 叶彩华
Original assignee: Dongguan Zhengyi Photoelectric Technology Co ltd
Current assignee: Dongguan Zhengyi Photoelectric Technology Co ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-07-15
Anticipated expiration: 2032-03-10

Abstract

The utility model discloses an LED module and an LED lamp string, which comprise a PCB (printed circuit board), wherein a plurality of welding positions are arranged on the PCB, lamp beads and wires are welded on the welding positions, voltage stabilizing resistors are also connected on the welding positions and are connected with the lamp beads in parallel, when the lamp beads are damaged, the LED module 1 can still conduct an internal circuit through the voltage stabilizing resistors, so that the whole lamp string is ensured to keep a circuit state, and due to the arrangement of the voltage stabilizing resistors, the voltage fluctuation of the whole LED lamp string can not be caused even if a plurality of LED modules are damaged at the same time, the normal work of other LED modules is influenced, the price of a voltage stabilizing diode is very low, and the LED module can not be manufactured to cause burden.

Description

LED module and LED lamp string

Technical Field

The utility model belongs to the technical field of LEDs, and particularly relates to an LED module and an LED lamp string.

Background

The light emitting diode, abbreviated as LED, is a commonly used light emitting device, emits light by energy released by recombination of electrons and holes, and is widely used in the field of lighting, and a plurality of light emitting diodes are usually connected in series to form a string of lights as an ornament.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an LED module and an LED string, so as to solve the problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

the LED module comprises a PCB, wherein a plurality of welding positions are arranged on the PCB, lamp beads and wires are welded on the welding positions, voltage stabilizing resistors are further connected on the welding positions, and the voltage stabilizing resistors are connected with the lamp beads in parallel.

The utility model has the beneficial effects that:

when the lamp beads are damaged, the LED module 1 can still conduct an internal circuit through the voltage stabilizing resistor, so that the whole lamp string is ensured to keep a circuit state, and due to the arrangement of the voltage stabilizing resistor, even if a plurality of LED modules are damaged at the same time, the voltage fluctuation of the whole LED lamp string can not be caused, the normal work of other LED modules is influenced, the voltage stabilizing diode is very cheap, and the burden caused by manufacturing the LED modules can not be caused.

The technical scheme is further that the lamp further comprises a first protective resistor, and the first protective resistor is connected with the lamp beads in series.

The technical scheme is further that the lamp further comprises a second protection resistor, and the second protection resistor is connected in series with a parallel circuit formed by the lamp beads and the voltage stabilizing resistor.

Further technical scheme still includes insulating casing, PCB board and lamp pearl are all inlayed in insulating casing, and the lamp pearl exposes with insulating casing.

An LED lamp string comprises a plurality of LED modules.

In a further technical scheme, the LED modules are connected in parallel.

The technical scheme is that the LED lamp comprises at least one rectifier module, and a plurality of LED modules are connected in series between the positive electrode and the negative electrode of the output end of the rectifier module.

According to the further technical scheme, the number of the rectifier modules is one, and the rectifier modules are bridge rectifier circuits.

According to the further technical scheme, the number of the rectifier modules is two, the LED modules are arranged between two adjacent rectifier modules, and the two rectifier modules form a bridge rectifier circuit.

In a further technical scheme, a rectifying module at one end of the LED lamp string is connected with a plug or a socket, and a rectifying module at the other end of the LED lamp string is connected with a socket or a plug.

The utility model has the beneficial effects that: the traditional rectifier module is divided into two parts, and the LED modules are connected in series in the two rectifier modules, so that the number of the lamp strings can be expanded when the LED modules are matched with a plug and a socket to be used together.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

FIG. 1: the internal structure of the LED module is shown as I.

FIG. 2: the internal structure of the LED module of the utility model is II.

FIG. 3: the utility model relates to an external structure diagram of an LED module.

FIG. 4: the LED modules of the present invention are connected in series.

FIG. 5: the LED modules of the utility model are connected in parallel.

Reference numerals: the LED module comprises a 1-LED module, a 11-PCB, a 12-welding position, a 13-lamp bead, a 14-lead, a 15-voltage stabilizing resistor, a 16-protection resistor I, a 17-protection resistor II, an 18-insulation shell, a 2-rectifier module, a 3-plug and a 4-plug.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The LED module 1 of the utility model is usually a plurality of LED light strings formed by series connection, so the embodiment will be explained by combining the LED light strings, firstly, the single LED module 1 comprises a PCB board, a lamp bead 13, a voltage stabilizing resistor 15 and a conducting wire 14, wherein the PCB board is provided with a plurality of welding positions 12, the PCB board can be processed by the prior art by the plurality of welding positions 12 to form a metal circuit to ensure that the plurality of welding positions 12 are communicated according to the functionality, then the lamp bead 13, the conducting wire 14 and the voltage stabilizing resistor 15 are welded on the welding positions 12 to ensure that the three are communicated with each other by welding, the voltage stabilizing resistor 15 is connected with the lamp bead 13 in parallel, because the voltage stabilizing resistor 15 is connected with the lamp bead 13 in parallel, the voltage applied on the lamp bead 13 is the same, when the lamp bead 13 is damaged, the LED module 1 can still conduct the internal circuit through the voltage stabilizing resistor 15, thereby ensuring that the whole light string keeps the state of a passage, and because of setting up the voltage stabilization resistance 15, even a plurality of LED modules 1 damage at the same time and will not cause the whole voltage fluctuation of LED lamp cluster, and influence the normal work of other LED modules 1, the price of zener diode is very cheap in addition, will not make LED module 1 make and cause the burden.

In this embodiment, the protection resistor is added in the LED module 1, and there are two connection manners, which are defined as a first protection resistor 16 and a second protection resistor 17 for distinguishing, and the specific details are as follows:

1. the first protection resistor 16 is connected with the lamp bead 13 in series, and is shown in figure 1;

2. the second protection resistor 17 is connected in series with a parallel circuit formed by the lamp bead 13 and the voltage stabilizing resistor 15, which is shown in fig. 2.

Can protect lamp pearl 13 through setting up of protection resistance, avoid producing great electric current fluctuation in the circuit, prolong the life of lamp pearl 13.

In this embodiment, as shown in fig. 3, both the PCB board and the lamp beads 13 are embedded in the insulating housing 18, and the lamp beads 13 are exposed out of the insulating housing 18.

A rectifier module 2 is added into a commonly formed LED lamp string, a plurality of LED modules 1 are connected in series between the positive electrode and the negative electrode of the output end of the rectifier module 2, and the rectifier module 2 has two forms, specifically as follows:

1. the number of the rectifier modules 2 is one, and the rectifier modules are usually composed of four diodes in the market, and the rectifier modules are simple;

2. the number of the rectifier modules 2 is two, as shown in fig. 4, the LED module 1 is disposed between two rectifier modules 2, and two adjacent rectifier modules 2 form a bridge rectifier circuit, that is, each rectifier module 2 has two diodes, and the two rectifier modules 2 together form a complete rectifier circuit, which is as follows:

each rectifier module 2 comprises two diodes, when the two diodes in the first rectifier module 2 are oppositely arranged, the two diodes in the second rectifier module 2 are arranged in a reverse manner, so that the two adjacent rectifier modules 2 can form a complete bridge rectifier circuit, in addition, the rectifier module 2 at one end part of the LED lamp string is connected with a plug 3 or a plug 4, the rectifier module 2 at the other end part of the LED lamp string is connected with the plug 4 or the plug 3, and the number of the LED lamp strings is expanded according to the actual arrangement.

The LED module 1 can also adopt a parallel connection mode, when the used power supply is a 12V power supply which can be directly used, if the LED module 1 adopts a serial connection mode, the voltage is not enough obviously, the LED module 1 cannot work normally, therefore, the parallel connection mode is adopted to ensure that each LED module 1 has enough voltage to be lightened, the voltage of 12V is far higher than the rated voltage of the lamp bead 13, the voltage can be divided through a protective resistor which is connected with the lamp bead 13 in series, and the lamp bead 13 can be lightened normally.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may include only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments as will be apparent to those skilled in the art.

Claims

1. An LED module, characterized in that: the LED lamp is characterized by comprising a PCB, wherein a plurality of welding positions (12) are arranged on the PCB, lamp beads (13) and conducting wires (14) are welded on the welding positions (12), voltage stabilizing resistors (15) are further connected on the welding positions (12), and the voltage stabilizing resistors (15) are connected with the lamp beads (13) in parallel.

2. An LED module according to claim 1, wherein: the lamp also comprises a first protective resistor (16), wherein the first protective resistor (16) is connected with the lamp bead (13) in series.

3. An LED module according to claim 1, wherein: the LED lamp further comprises a second protection resistor (17), wherein the second protection resistor (17) is connected in series with a parallel circuit formed by the lamp beads (13) and the voltage stabilizing resistor (15).

4. An LED module according to claim 1, wherein: still include insulating casing (18), PCB board and lamp pearl (13) are all inlayed in insulating casing (18), and lamp pearl (13) expose and insulating casing (18).

5. An LED light string, characterized in that: comprises a plurality of LED modules (1).

6. The LED light string of claim 5, wherein: the LED modules (1) are connected in parallel.

7. The LED light string of claim 5, wherein: the LED lamp comprises at least one rectifier module (2), wherein a plurality of LED modules (1) are connected in series between the positive electrode and the negative electrode of the output end of the rectifier module (2).

8. The LED light string of claim 7, wherein: the number of the rectifier modules (2) is one, and the rectifier modules are bridge rectifier circuits.

9. The LED light string of claim 8, wherein: the LED light source comprises two rectifier modules (2), the LED modules (1) are arranged between the two adjacent rectifier modules (2), and the two rectifier modules (2) form a bridge rectifier circuit.

10. The LED light string of claim 9, wherein: the rectifying module (2) positioned at one end part of the LED lamp string is connected with a plug (3) or a socket (4), and the rectifying module (2) positioned at the other end part of the LED lamp string is connected with the socket (4) or the plug (3).