CN211297078U

CN211297078U - Self-balancing LED lamp drives integrative light source

Info

Publication number: CN211297078U
Application number: CN201922195011.0U
Authority: CN
Inventors: 马彬; 马金刚
Original assignee: Zhejiang Chenglian Electric Technology Co ltd
Current assignee: Zhejiang Chenglian Electric Technology Co ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-08-18
Anticipated expiration: 2029-12-10

Abstract

The utility model discloses a self-balancing LED lamp-drive integrated light source, which comprises a plurality of light source small units connected by parallel connecting wires, wherein each light source small unit comprises a power module; the power supply module is connected with the LED lamp strip through a wire; and a coated outer shell; the positive and negative connecting wires of the power supply module of each light source small unit are connected in parallel with the positive and negative connecting wires of the LED lamp strip, and the LED lamp strip is provided with a plurality of LED lamp beads. The utility model discloses waterproof and waterproof light source can reduce whole light source fault rate, can avoid the light source totally even and whole trouble appears.

Description

Self-balancing LED lamp drives integrative light source

Technical Field

The utility model belongs to the technical field of the LED, specifically speaking relates to a self-balancing LED lamp drives integrative light source.

Background

With the progress of society, the technology of the LED lamp is more mature, and the LED lamp has the characteristics of high efficiency, energy conservation, long service life and the like, so the use amount of the LED lamp is increased rapidly. Especially, the decorative lamp on the house is usually formed by surrounding the LED strips, but the LED strips are limited in number and are usually connected in series, and the connection mode of the structure has the following problem that when one of the LED strips is damaged, the whole strip is not lighted, so that the whole strip does not work.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims to solve the technical problem that a self-balancing LED lamp drives integrative light source is provided for avoid the trouble that the LED light source produced the trouble easily.

In order to solve the technical problem, the utility model discloses a self-balancing LED lamp-drive integrated light source, which comprises a plurality of light source small units connected in parallel through connecting wires, wherein each light source small unit comprises a power module; the LED lamp strip is welded to the power module through a wire; and a coated outer shell; the positive electrode and the negative electrode of each light source small unit power supply module are connected with the positive electrode and the negative electrode of an LED lamp on an LED lamp strip in parallel through connecting wires and circuit board leads, and positive electrode pads and negative electrode pads on each circuit board are connected in parallel through connecting wires; the LED lamp strip is provided with a single LED lamp bead series resistor, or a plurality of LED lamp beads are connected in parallel and are simultaneously connected with the power module and the positive and negative connecting wires on the LED lamp strip in parallel.

According to the utility model discloses an embodiment, wherein above-mentioned power module is equipped with power control chip, the electric current in the power control chip detection circuitry, control power module constant voltage mode output or constant current mode output.

According to the utility model discloses an embodiment, wherein above-mentioned power module has input and output, and is equipped with the isolation unit, and the isolation unit keeps apart input voltage and output.

According to the utility model discloses an embodiment, wherein be equipped with the transformer on the above-mentioned isolation unit, the transformer is kept apart input and output.

According to the utility model discloses an embodiment, wherein above-mentioned LED lamp strip establishes ties current limiting resistor.

According to the utility model discloses an embodiment, wherein be equipped with the protection unit on the above-mentioned power module, the protection unit includes the fuse.

According to an embodiment of the present invention, the power supply further comprises a capacitor CY1, the output end comprises a V + end and a V-end, and the V-end is grounded through the capacitor CY 1.

According to the utility model discloses an embodiment still includes the pilot lamp, and the pilot lamp instructs power module's operating condition.

Compared with the prior art, the utility model discloses can obtain including following technological effect:

the light source power module is in a CC/CV output working mode, when the power module works normally, the power module works in a CV (constant voltage mode) when the power module has low lamp strip power and the power module has low power, resistors connected in series with the LED lamp play a role in limiting current, so that the LED lamp works in a normal working state, and when one part of the power modules breaks down, other power modules detect the increase of loads through the internal detection circuit. If the current exceeds the maximum set current of the power module, the power module is automatically switched to a CC (constant current) working mode, so that the residual power supply is prevented from generating a fault due to overload heating, and the current is redistributed evenly according to the load at the moment because the anode and the cathode of the LED lamp strip and the anode and the cathode of the power module are all in parallel connection, so that the current is small and the maximum current of the LED lamp is small, the LED is not damaged, the whole LED can still work normally, and waterproof and non-waterproof treatment can be carried out, so that the purpose of reducing the fault rate of the whole light source is achieved, and the whole fault of the light source can be avoided completely.

Of course, it is not necessary for any product to achieve all of the above-described technical effects simultaneously.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic block diagram of embodiment 1 of the present invention;

FIG. 2 is a view showing an appearance structure of embodiment 1 of the present invention;

fig. 3 is an electrical schematic diagram of embodiment 1 of the present invention;

fig. 4 is an electrical schematic diagram of embodiment 2 of the present invention.

Detailed Description

The following detailed description will be made with reference to the accompanying drawings and examples, so that how to implement the technical means of the present invention to solve the technical problems and achieve the technical effects can be fully understood and implemented.

Example 1: referring to fig. 1, 2 and 3, a self-balancing LED lamp-drive integrated light source includes a plurality of light source small units connected by parallel connection lines, the light source small units including a power module; the LED lamp strip is welded to the power module through a wire; the outer shell is used for strengthening external protection, and is waterproof and anti-corrosion; the positive and negative connecting wires of the power supply module of each light source small unit are connected in parallel with the positive and negative connecting wires of the LED lamp strip, and the LED lamp strip is provided with a plurality of LED lamp beads which are connected in parallel and do not influence each other. Here, in order to ensure the utility of the light source, the AC input terminals are connected in parallel through two sets of wires. Preferably, a set of 20 LED light bars is used, it being understood that the maximum number of combinations depends on the maximum power range to which the input AC connection is subjected. The positive electrode and the negative electrode of each light source small unit power supply module are connected with the positive electrode and the negative electrode of an LED lamp on an LED lamp strip in parallel through connecting wires and circuit board leads, and positive electrode pads and negative electrode pads on each circuit board are connected in parallel through connecting wires; the LED lamp strip is provided with a single LED lamp bead series resistor, or a plurality of LED lamp beads are connected in parallel and are simultaneously connected with the power module and the positive and negative connecting wires on the LED lamp strip in parallel.

The LED lamp strip comprises a specific structure, wherein a power supply module and a plurality of LED lamps are arranged on an LED lamp strip 1, an input end, an output end, a protection unit, a transformer, an indicator lamp and a power supply control chip U1 are arranged on the power supply module, the output end of the power supply module is communicated with the input end of the LED lamp strip, the input end of the power supply module comprises a fire wire end and a zero wire end, and the input voltage can be AC 85V-265V. The protection unit comprises a fuse F1 and a bidirectional voltage-stabilizing tube, the fuse F1 is connected with the live wire end in series, the other end of the fuse F1 is connected with the rectifier bridge BD1, one end of the bidirectional voltage-stabilizing tube is connected with the live wire end, and the other end of the bidirectional voltage-stabilizing tube is connected with the zero line end. Four pins of the rectifier bridge BD1 are respectively connected with the fuse F1, the zero line end, the positive electrode of the capacitor C1 and the ground wire, and the negative electrode of the capacitor C1 is grounded. The power control chip can be controlled to form constant voltage mode output or constant current mode output, and can be power control chips of different models, the power control chip U1 includes a VDD end, an INV end, a COMP end, a CS end, a GND end and a DRAIN end, the VDD end is respectively connected with one end of a capacitor C2, one end of a resistor R6 and one end of a resistor R1, and the other end of the resistor R1 is connected with the anode of a capacitor C1 through a resistor R2. The INV end is connected to one end of the resistor R7, one end of the resistor R8, and one end of the resistor R9, respectively, and the other end of the resistor R7 is connected to the other end of the capacitor C2 after being connected in parallel with the resistor R8 and is grounded. The other end of the resistor R6 is connected to the cathode of the diode D1, the anode of the diode D1 is connected to the other end of the resistor R9 and the coil T3, respectively, and the other end of the coil T3 is grounded. The COMP terminal is connected to ground through a capacitor C6. After the resistor R10 and the resistor R3 are connected in parallel, one end is connected with the CS end, and the other end is grounded. The GND terminal is grounded. The DRAIN terminal is connected to the anode of the diode D2 and the T1 pin 1 of the transformer, respectively. One end of the capacitor C3 is connected to the anode of the capacitor C1, and the other end is connected to the cathode of the diode D2. After the resistor R4 and the resistor R5 are connected in parallel, one end of the resistor R4 is connected with the anode of the capacitor C1, and the other end of the resistor R4 is connected with the cathode of the diode D2. The positive terminal of capacitor C1 is also connected to pin 4 of transformer T1. Pin 2 of the transformer T1 is connected to the anode of the diode D4 and the anode of the diode D3, respectively. The electrical isolation effect can be achieved well by the transformer T1. The cathode of the diode D4 is connected with the anode of the capacitor C4, one end of the resistor R12 and the 24V + end respectively, the cathode of the diode D3 is connected with the anode of the LED1 through the resistor R11, and the cathode of the LED1 is connected with the cathode of the capacitor C4, the other end of the resistor R12 and the V-end respectively. The LED1 is here an indicator light that indicates the operating status of the power module. The cathode of the LED lamp is connected with the V-end, and the anode of the LED lamp is connected with the V + end. The V-terminal is connected to ground through a capacitor CY 1.

The utility model adopts the structure, each LED lamp strip is powered by the independent power module, fig. 3 shows that the power modules operate in a CC (constant current mode) operating mode, the current set by each power module is less than the maximum current borne by the linked LED light bars, thereby ensuring the normal work of the LED lamp, and then the connecting lines of two adjacent LED lamp bars are connected in parallel, so that in the use process, if one of the power supply modules is powered off or damaged, the power supply modules of other LED lamp strips can supply power, at the moment, the working current of the LED lamp is more than the current supplied by all the power supply modules, the current is redistributed equally according to the load, and thus is much less than the maximum current of the LED lamp, therefore, the LED can not be damaged, the whole LED can still normally work, the whole LED can normally work in the using process, and an independent lamp strip cannot work. And moreover, waterproof and non-waterproof treatment can be carried out, so that the purpose of reducing the failure rate of the whole light source is achieved, and the integral failure of the light source can be completely avoided.

Example 2: referring to fig. 1, 2 and 4, a difference between the embodiment 2 and the embodiment 1 is that the power supply module further includes a current limiting resistor, the current limiting resistor is connected in series with a single LED lamp, so as to protect the LED lamp from overcurrent damage, the current limiting resistor is configured to operate in a CV (constant voltage mode) operating mode when the power of the LED lamp strip is smaller than the power of the power supply module, the LED lamp is protected by the current limiting resistor in series to operate in a normal operating state at this time, and then connected in parallel through the connecting lines of two adjacent LED lamp strips, when a part of the power supply modules fails, the power supply modules on other lamp strips detect load increase through an internal detection circuit. If the current value exceeds the maximum set current value of the power module, the power module is automatically switched to a CC (constant current mode) working mode, so that the residual power supply is prevented from being failed due to overload heating, and the current of the power output end is redistributed averagely according to the LED lamp at the moment because the positive and negative poles of the LED lamp strip 1/LED lamp strip 2/LED lamp strip N and the positive and negative poles of the power module are all in parallel connection for working, so that the current is smaller than the maximum current of the LED lamp, the LED lamp cannot be damaged, the whole LED lamp can still normally work, and waterproof treatment can be carried out, so that the purpose of reducing the failure rate of the whole light source is achieved, and the occurrence of the whole failure of the light source can be.

The foregoing description illustrates and describes several preferred embodiments of the present invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A self-balancing LED lamp-drive integrated light source, comprising: the light source small units are connected in parallel through connecting wires and comprise power modules; the LED lamp strip is welded to the power supply module through a wire; and a coated outer shell; the positive electrode and the negative electrode of each light source small unit power supply module are connected with the positive electrode and the negative electrode of the LED lamp on the LED lamp strip in parallel through connecting wires and circuit board leads, and the positive electrode and the negative electrode bonding pads on each circuit board are connected in parallel through connecting wires; the LED lamp strip is provided with a single LED lamp bead series resistor, or a plurality of LED lamp beads are connected in parallel and are simultaneously connected with the power module and the positive and negative connecting wires on the LED lamp strip in parallel.

2. The self-balancing LED lamp-drive integrated light source of claim 1, wherein the power module is provided with a power control chip, the power control chip detects current in the circuit and controls the power module to output in a constant voltage mode or in a constant current mode.

3. The self-balancing LED lamp-drive integrated light source of claim 1, wherein the power module has an input terminal and an output terminal, and an isolation unit is provided to isolate the input voltage from the output terminal.

4. The self-balancing LED lamp-drive integrated light source of claim 3, wherein a transformer is disposed on the isolation unit, and the transformer isolates the input voltage from the output terminal.

5. The self-balancing LED lamp driving integrated light source of claim 1, wherein the LED lamp strip has a current limiting resistor.

6. The self-balancing LED lamp-drive integrated light source of claim 1, wherein the power module is provided with a protection unit, and the protection unit comprises a fuse.

7. The self-balancing LED lamp-driving integrated light source of claim 1, further comprising a capacitor CY1, wherein the output terminal comprises a V + terminal and a V-terminal, and the V-terminal is grounded through the capacitor CY 1.

8. The self-balancing LED lamp-drive integrated light source of claim 1, further comprising an indicator light indicating an operating state of the power module.