CN211289658U

CN211289658U - Circuit connection structure of LED lamp area

Info

Publication number: CN211289658U
Application number: CN201922460430.2U
Authority: CN
Inventors: 程敏权
Original assignee: Jiangmen Heike Photoelectric Technology Co ltd
Current assignee: Jiangmen Heike Photoelectric Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-18
Anticipated expiration: 2029-12-31

Abstract

The circuit connection structure of the LED lamp strip comprises a circuit board, wherein the front side of the circuit board is provided with a plurality of series circuits for welding LEDs, the back side of the circuit board is provided with a positive power supply circuit and a negative power supply circuit, the positive and negative electrodes of the series circuits are respectively electrically connected with the positive power supply circuit and the negative power supply circuit, the series circuits are provided with independent front sections and rear sections, and connecting resistors are welded between the front sections and the rear sections and are electrically connected with the front sections and the rear sections. Because the utility model discloses a welding has the connecting resistance electricity to be connected between anterior segment and the back end anterior segment and back end, this connecting resistance can adopt reflow soldering machine automatic weld together in welding LED lamp pearl, omits manual bonding wire process, the utility model has the advantages of simple process and production efficiency are high.

Description

Circuit connection structure of LED lamp area

Technical Field

The utility model relates to a circuit structure of LED lamps and lanterns especially relates to a circuit connection structure in LED lamp area.

Background

The existing LED lamp strip comprises a conducting wire and a non-conducting wire, wherein the conducting wire LED lamp strip is provided with a power conducting wire in a lamp strip outer skin, the non-conducting wire LED lamp strip outer skin is not provided with a conducting wire, and a circuit board is provided with a power circuit to replace the conducting wire in the outer skin.

The existing wire-free LED lamp belt circuit board is provided with a double-layer circuit, wherein the front side of the circuit board is provided with a series circuit for welding an LED and a resistor, and the back side of the circuit board is provided with a positive power supply circuit and a negative power supply circuit. The circuit board is composed of a plurality of shearable units, each of which includes one or more independent series circuits therein. The series circuit is manufactured through a rolling cutting process, and compared with an etching process, the series circuit has the advantages of environmental protection, high production efficiency and the like. However, in circuit boards with a plurality of series circuits in one cutting unit, the series circuit length can generally only be produced to a length of 0.5 m for reasons of rolling die economy. Therefore, in the leadless LED strip with the cutting unit being 1 meter long, the series circuit needs to be manufactured in two sections, and the two sections of series circuits need to be electrically connected through manual welding wires, so that the complexity of the manufacturing process of the leadless LED strip is increased, and the production efficiency is low.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a simple process, circuit connection structure in LED lamp area that production efficiency is high.

The utility model provides a technical means that its technical problem adopted is: the circuit connection structure of the LED lamp strip comprises a circuit board, wherein the front side of the circuit board is provided with a plurality of series circuits for welding LEDs, the back side of the circuit board is provided with a positive power supply circuit and a negative power supply circuit, the positive and negative electrodes of the series circuits are respectively electrically connected with the positive power supply circuit and the negative power supply circuit, the series circuits are provided with independent front sections and rear sections, and connecting resistors are welded between the front sections and the rear sections and are electrically connected with the front sections and the rear sections.

The utility model has the advantages that: because the utility model discloses a welding has the connecting resistance electricity to be connected between anterior segment and the back end anterior segment and back end, this connecting resistance can adopt reflow soldering machine automatic weld together in welding LED lamp pearl, omits manual bonding wire process, the utility model has the advantages of simple process and production efficiency are high.

Drawings

Fig. 1 is a schematic diagram of the front side circuit structure of the present invention;

FIG. 2 is a schematic diagram of a back side circuit structure of the present invention;

fig. 3 is a schematic structural view of the section C-C in fig. 2.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Refer to fig. 1, 2 and 3. The utility model discloses a no wire LED lamp area circuit board has double-deck circuit, and it openly has the series circuit 11 of welding LED and protective resistance, and the back has a positive power supply circuit 12 and two negative pole power supply circuit 13, insulating layer 14 has between series circuit 11 and the positive negative power supply circuit 12/13.

The circuit board is comprised of a plurality of 1 meter long shearable elements 10. Each shearable element 10 has a first series circuit 11A and a second series circuit 11B therein. A positive white light LED lamp bead A0 and a protective resistor 2 are welded on the first series circuit 11A to form a series unit, and a warm white light LED lamp bead B0 and the protective resistor 2 are welded on the second series circuit 11B to form a series unit. The negative poles of the first series circuit 11A and the second series circuit 11B are located at the head end of the shearable element 10, and the positive poles are located at the tail end of the shearable element 10. The front surface of the head end of the shearable unit 10 corresponding to the positive and negative power supply circuit 12/13 is provided with a communication hole 15 penetrating the insulating layer 14, and solder paste 16 is poured into the communication hole 15 to form a positive terminal 121 and two negative terminals 131. The cathodes of the first series circuit 11A and the second series circuit 11B are electrically connected to the two negative terminals 131, respectively. The shearable unit 10 is provided with a first connection port 17, and one side of the first connection port 17 is a first front section a1 of the first series circuit 11A and a second front section B1 of the second series circuit 11B; the other side of the first connection port 17 is a first rear section a2 of the first series circuit 11A and a second rear section B2 of the second series circuit 11B. The first connector 17 is provided with two connecting resistors 3 electrically connected to the first front section a1 and the first rear section a2, and the second front section B1 and the second rear section B2, respectively. And a connecting resistor 3 is welded between the positive electrode of the first rear section A2 and the positive electrode of the second rear section B2 to electrically connect the two. The positive electrode position of the first rear section A2 is also provided with a communication hole 15 penetrating the insulating layer 14, and solder paste 16 is poured in the communication hole 15 to electrically connect the positive electrode of the first rear section A2 and the positive electrode power circuit 12.

A second connection port 18 is arranged between the shearable unit 10 and the next shearable unit 10, and a connection resistor is welded at the second connection port 18 to electrically connect the positive electrode of the first rear section a2 and the positive electrode contact of the next shearable unit 10. Thus, after being cut from any one of the second connection ports 18, an external power supply is connected to the positive and negative electrode contacts 121/131 of the cuttable unit 10, and each cuttable unit 10 can be used independently.

Because be provided with two connecting resistor 3 on the first interface 17, the electricity is connected respectively degree B1 and second back end B2 before first anterior segment A1 and first back end A2 and the second, this connecting resistor 3 can adopt reflow soldering machine automatic weld together in the welding LED lamp pearl, omits manual bonding wire process, the utility model has the advantages of simple process and production efficiency are high. Because connecting resistor 3 is used in first interface 17 department, for the power and the electric current that keep the lamp area, can turn down original protective resistor 2's resistance value correspondingly, connecting resistor 3 has the existing electric connection function and also has protective resistor's function like this.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a circuit connection structure in LED lamp area, includes the circuit board, the circuit board openly has a plurality of welding LED's series circuit, and the circuit board back has positive negative pole power supply circuit, the positive negative pole of series circuit respectively with positive negative pole power supply circuit electricity is connected its characterized in that: the series circuit is provided with an independent front section and an independent rear section, and a connecting resistor is welded between the front section and the rear section to be electrically connected with the front section and the rear section.

2. A circuit connecting structure of a LED light strip as claimed in claim 1, wherein: the circuit board is composed of a plurality of shearable units, a first series circuit and a second series circuit are arranged in each shearable unit, a first connecting port is arranged in each shearable unit, and a first front section of the first series circuit and a second front section of the second series circuit are arranged on one side of each first connecting port; the other side of the first connecting port is a first rear section of the first series circuit and a second rear section of the second series circuit; the first connecting port is provided with two connecting resistors which are respectively and electrically connected with the first front section and the first rear section as well as the second front section and the second rear section; and a connecting resistor is welded between the anode of the first rear section and the anode of the second rear section to electrically connect the two.

3. A circuit connection structure of a LED light strip as claimed in claim 2, wherein: and a second connecting port is arranged among the plurality of shearable units, and a positive contact welded with a connecting resistor and electrically connected with the positive electrode of the first rear section and the positive electrode of the next shearable unit is arranged at the second connecting port.