WO2015117289A1

WO2015117289A1 - Led through-hole lamp

Info

Publication number: WO2015117289A1
Application number: PCT/CN2014/075185
Authority: WO
Inventors: 杨子明; 胡建国; 刘希林; 黄忠国; 张怀斌
Original assignee: 深圳市日上光电股份有限公司
Priority date: 2014-02-08
Filing date: 2014-04-11
Publication date: 2015-08-13

Abstract

An LED through-hole lamp, comprising a casing (1), wires (7) and a lamp body assembly. The casing (1) is provided with an accommodating cavity. The lamp body assembly is housed within the accommodating cavity. The lamp body assembly comprises a flexible circuit board (5), a support (6) used for supporting the flexible circuit board (5), and a surface-mount LED lamp (3) arranged on the flexible circuit board (5). The flexible circuit board (5) is bonded to a surface of the support (6). The surface-mount LED lamp (3) is electrically connected to the flexible circuit board (5). The casing (1) is also provided with an opening connected to the accommodating cavity. The wires (7) are electrically connected to the flexible circuit board (5). The free ends of the wires (7) extend out from the opening. The present LED through-hole lamp is small in size, lightweight, and easy to process into an ideal shape. The surface-mount LED lamp (3) is mounted directly on the flexible circuit board (5), thereby avoiding the problem that when wires acting as pins are connected directly on a substrate, the pins are easily broken. The present LED through-hole lamp has a lightweight, slender structure, and assembly is convenient and firm.

Description

LED perforated lamp

Technical field

The present invention relates to the field of LED lighting applications, and more particularly to an LED perforated lamp.

Background technique

Because LED has environmental protection, energy saving, true color, good weather resistance, long service life and high reliability, the LED is on the market. The development of products for light sources is constantly increasing. LED perforated lamps are one of the new LED lighting products. The substrate used in the existing LED perforated lamp is a rigid circuit board, that is, a PCB board. The PCB is heavy and bulky, which results in a larger diameter of the existing LED perforated lamps. At the same time, most of the LED perforated lamps on the market use straw-type LED lamps, which are soldered by leads. The pin of the perforated lamp makes the distance between the light-emitting surface and the substrate long, and the pin is easily bent and broken during installation.

Summary of the invention

The technical problem to be solved by the present invention is to provide an LED perforated lamp which is small in size and convenient to assemble.

The technical solution adopted by the present invention to solve the technical problem thereof is to construct an LED perforated lamp, the LED The perforating lamp includes a housing, a wire and a lamp body assembly; the housing has a receiving cavity, and the lamp body assembly is received in the receiving cavity;

The lamp body assembly includes a flexible circuit board, a bracket for supporting the flexible circuit board, and a chip LED disposed on the flexible circuit board light;

The flexible circuit board is attached to the surface of the bracket; the SMD LED lamp is electrically connected to the flexible circuit board;

The outer casing also has an opening that communicates with the accommodating cavity;

The wire is electrically connected to the flexible circuit board; a free end of the wire protrudes from the opening.

In the LED perforated lamp of the present invention, the LED The perforated lamp further includes a lens; the outer casing further has an upper opening in communication with the receiving cavity;

The lens is disposed above the SMD LED lamp, and the lens is adjacent to the SMD LED One end of the lamp is received in the accommodating cavity, and the lens is exposed away from an end of the SMD LED lamp.

In the LED perforated lamp of the present invention, the lens is adjacent to the chip LED One end of the lamp extends toward the receiving cavity to form a latching portion, and the lens is clamped on the bracket.

In the LED perforated lamp of the present invention, the bracket is provided with a chute for inserting and holding the retaining portion.

LED of the invention In the perforating lamp, the bracket is provided with a pair of limiting card slots, and the holding portion is provided with a pair of hooks matched with the pair of limiting slots.

In the LED perforated lamp of the present invention, the outer casing is formed by injection molding or overmolding, and is wrapped around the outer side of the lamp body assembly.

In the LED perforated lamp of the present invention, the flexible circuit board includes a chip for mounting the chip a top plate portion of the lamp and two side plate portions connected to both sides of the top plate portion and extending along a height direction of the bracket;

The top plate portion is in contact with a top surface of the bracket, and the two side plate portions are in contact with a side surface of the bracket.

In the LED perforated lamp of the present invention, the top surface of the bracket and / A holding block for holding the flexible circuit board is formed on a side of the bracket or the bracket.

LED of the invention In the perforated lamp, at least one pair of positioning holes are disposed on the two side plate portions, and at least one pair of positioning posts that cooperate with the at least one pair of positioning holes are formed on a side surface of the bracket.

In the LED perforated lamp of the present invention, the material of the outer casing is made of PVC Material or thermoplastic elastomer or low pressure molding compound or low pressure injection molding plastic.

In the LED perforated lamp of the present invention, the material of the bracket is made of PC material.

In the LED perforated lamp of the present invention, the opening for the free end of the wire to protrude is provided at a lower end or a side of the outer casing.

The technical solution of the present invention has at least the following beneficial effects: a flexible circuit board is used as a substrate, which can be well attached to the bracket, so that LED perforated lamps are small in size, light in weight and easy to machine into the desired shape. And SMD LED The lamp is directly mounted on the flexible circuit board, which avoids the problem that the lead is easily broken when the wire is directly connected to the substrate as a pin. Therefore, the LED perforated lamp has a light and slender structure and is convenient to assemble.

DRAWINGS

The invention will now be further described with reference to the accompanying drawings and embodiments in which:

1 is an exploded view of an LED perforated lamp in an embodiment of the present invention;

2 is a schematic structural view of a bracket of an LED perforated lamp in an embodiment of FIG. 1;

Figure 3 is an exploded view of an LED perforated lamp in another embodiment of the present invention;

4 is a schematic structural view of a bracket of an LED perforated lamp in another embodiment of FIG. 3;

Among them, 1 , outer casing; 2, lens; 21, holding part; 211, hook; 3, patch LED light; 4 5, flexible circuit board; 51, mounting card slot; 52, positioning hole; 6, bracket; 61, holding block; 62, positioning column; 63, limit card slot; 64, chute; , wire.

detailed description

For a better understanding of the technical features, objects and effects of the present invention, the embodiments of the present invention are described in detail with reference to the accompanying drawings.

1 to 4 illustrate an LED perforated lamp in some embodiments of the present invention, which is small in size, light in weight, convenient to assemble, and strong. It comprises a housing 1, a lens 2, a wire 7 and a lamp body assembly.

In some embodiments, the outer casing 1 serves as an outer component of the LED perforated lamp, is small in size and has a receiving cavity for receiving the lamp body assembly in its receiving cavity to realize the lamp body assembly and the outer casing. The tight mounting between 1 and makes the LED perforated lamp small and compact.

It can be understood that the material of the outer casing 1 can be commonly used materials, for example, PVC material or thermoplastic elastomer or Low pressure molding compound or low pressure injection molding plastic.

Further, the outer casing 1 can also protect the lamp body assembly in the accommodating cavity, so that the lamp body assembly is not affected by the bump during use, thereby prolonging the life of the LED perforated lamp. .

Further, the shape of the outer casing 1 can be designed into various shapes according to actual needs. It can be understood that the LED perforated lamp is generally used in a space with small space, and the outer casing 1 is generally designed to be thin. The long shape facilitates mounting of the LED perforated lamp in a narrow gap or in a certain depth of hole. Of course, the outer casing 1 designed in other shapes is also within the scope of the present invention.

In some embodiments, the outer casing 1 is formed by injection molding or overmolding, which is wrapped around the exterior of the lamp body assembly. , so that the plastic forms a protective shell on the outside of the assembly.

It can be understood that, in order to prevent the installation gap between the outer casing 1 and the lamp body assembly, a common sealing manner can also be adopted, for example, after the lamp body assembly is received in the accommodating cavity of the outer casing 1, and then facing the accommodating cavity The potting glue is filled into the cavity, and the potting glue is formed after the potting glue is solidified.

The potting layer is mainly used for tightly combining the outer casing 1 and the lamp body assembly to prevent the two from falling off, and at the same time, functions as dustproof and waterproof. Thereby extending the service life of the LED perforated lamp.

Further, the potting compound forming the potting layer may be a material commonly used in the industry, for example, an epoxy resin or the like.

In some embodiments, the lamp body assembly is mounted within the housing cavity of the housing 1 and includes a flexible circuit board 5, a bracket 6 and a patch LED lamp 3.

The flexible circuit board 5 is attached to the surface of the bracket 6. The main function of the flexible circuit board 5 is to use the The flexible circuit board 5 serves as a circuit board for the LED perforated lamp, and the LED perforated lamp can be made elongated to meet the requirements of different hole depth installations, and a large number of other components such as position mounting resistors 4 can be vacated to improve illumination. Efficiency can also have a good cooling effect.

In some embodiments, the flexible circuit board 5 includes a top plate portion and two side plate portions connected to both sides of the top plate portion and extending in the height direction of the bracket 6.

Further, the top plate portion of the flexible circuit board 5 is provided with at least one pair of mounting slots 51. The top surface of the bracket 6 is formed with at least one pair of latching blocks 61 that are engaged with at least one pair of mounting slots 51. , that is, the bracket 6 A holding block 61 that holds the flexible circuit board 5 is formed on the top surface. The function of the holding block 61 is to limit the flexible circuit board 5 attached to the bracket 6. It can be understood that the holding block 61 can be disposed on the top surface of the bracket 6 or the side of the bracket 6, that is, as long as it can The arrangement of the retaining blocks 61 to the limit is within the scope of the present invention.

Further, at least two pairs of positioning holes 52 are disposed on the two side plate portions of the flexible circuit board 5, and at least one pair of positioning posts 62 that cooperate with at least one pair of positioning holes 52 are formed on the side surface of the bracket 6.

Referring to FIG. 2, in some embodiments, the bracket 6 functions primarily to support and conform to the flexible circuit board 5.

Understandably, The shape of the flexible circuit board 5 is matched with the shape of the bracket 6, so that the top plate portion of the flexible circuit board 5 is in contact with the top surface of the bracket 6, and the side plates of the flexible circuit board 5 and the bracket The sides of 6 fit together. which is The profile of the bracket 6 should be similar to the shape of the flexible circuit board 5 to achieve a better fit.

further, The bracket 6 has a slender shape with a top surface and a plurality of side surfaces, and the material thereof can be made of a common material such as a PVC material or a plastic material.

more Further, the bracket 6 can also have a hollow cavity, and a plurality of heat dissipation holes are formed on the side of the bracket 6. This can save material, reduce production costs, and can reduce the weight of the LED perforated lamp for ease of use.

In some embodiments a plurality of resistors 4 are soldered to the side plate portions of the flexible circuit board 5 attached to the side surface of the bracket 6. When the flexible circuit board 5 and the bracket 6 are intended to be attached, the respective positions and positions of the resistors 4 are The distribution positions of the louvers are one-to-one correspondence.

The heat dissipation hole can function as a heat dissipation microcirculation, that is, the cavity inside the bracket 6 is used to allow the heat generated by the LED perforated lamp to pass through the heat dissipation hole and the cavity inside the bracket 6 to facilitate heat dissipation.

It can be understood that, in order to achieve a better heat dissipation effect, a support protrusion for supporting the flexible circuit board 5 may be disposed on the surface of the bracket 6. The support protrusions form a heat dissipation gap between the flexible circuit board 5 and the surface of the bracket 6 for air circulation.

Further, the heat dissipation gap can communicate with the cavity inside the bracket 6 through the heat dissipation hole, and the heat dissipation gap after the communication and the cavity inside the bracket 6 form an air circulation loop with the external space, so that the hot and cold air is continuously small. The flow within the range further improves the efficiency of heat dissipation.

In addition, In order to tightly mount the lamp body assembly in the accommodating cavity of the housing 1, a plurality of limiting recesses are disposed on the inner wall surface of the accommodating cavity, and the bracket 6 is provided with a plurality of recesses embedded in the limiting recesses. Limit bumps.

In some embodiments, the SMD LED lamp 3 is mounted on a top plate portion of the flexible circuit board 5, and the SMD LED lamp 3 is electrically connected to the flexible circuit board 5.

The SMD LED lamp 3 is directly connected to the flexible circuit board 5 through the contact poles, thereby avoiding the problem that the original wire 7 is easily broken as a pin, and is not only easy to assemble but also securely mounted.

It will be understood that the number of the SMD LED lamps 3 is determined according to specific product specifications, but the LED perforated lamps are generally used as point sources, and generally only one SMD LED lamp 3 is used.

A lens 2 is further disposed above the SMD LED lamp 3, and a wire 7 is connected to the flexible circuit board 5 on which the SMD LED lamp 3 is mounted. And the outer casing 1 further has an upper opening in communication with the accommodating cavity.

In some embodiments, the lens 2 is in close proximity to the SMD LED lamp 3, and the lens 2 is received in the accommodating cavity near the end of the SMD LED lamp 3. The lens 2 is away from the SMD LED lamp. One end of the metal 3 protrudes beyond the upper opening of the outer casing 1.

An end of the lens 2 adjacent to the chip LED lamp 3 extends toward the accommodating cavity to form a holding portion 21, and the lens 2 is clamped on the bracket 6 on. It can be understood that there are many methods for holding the lens 2 on the bracket 6. For example, in the first method, referring to Fig. 3 to Fig. 4, a bracket 64 matching the retaining portion 21 is disposed on the bracket 6 After the locking portion 21 of the lens 2 is inserted into the sliding slot 64, the sliding slot 64 can be used for limiting and fixing the method. For the second method, referring to FIG. 1 to FIG. 2, a pair of limiting cards are arranged on the bracket 6. groove 63. The holding portion 21 is provided with a pair of hooks 211 matching the pair of limit card slots 63.

In some embodiments, The lens 2 and the outer casing 1 may have a split structure or an integral structure. The lens 2 and the outer casing 1 having a unitary structure are generally integrally molded by injection molding.

Further, the lens 2 may adopt an H-shaped or work-shaped condenser lens of a one-piece molded body. In addition, the material of the lens 2 may be a transparent PC acrylic or an organic glass having high impact resistance. In some embodiments, the wire 7 is electrically connected to the flexible circuit board 5. In addition to the upper opening for the lens 2 to extend, the outer casing 1 has other openings communicating with the receiving cavity, and the free end of the wire 7 extends from the opening. It will be understood that the opening may be provided at the lower end or the side of the outer casing 1. In the LED perforated lamp of the present invention, the opening is preferably provided at the lower end of the outer casing 1. . The wire 7 is used to access an external power source to supply power to the chip LED lamp 3 on the flexible circuit board 5.

Further, when a plurality of LED perforated lamps are required to be used, the wires 7 can also connect a plurality of LED perforated lamps in series to become a light string, which is very quick and convenient to use and has a wide application range.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications, combinations and changes may be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Claims

LED perforated lamp characterized by the LED The perforating lamp includes a housing, a wire and a lamp body assembly; the housing has a receiving cavity, and the lamp body assembly is received in the receiving cavity;

The lamp body assembly includes a flexible circuit board, a bracket for supporting the flexible circuit board, and a chip LED disposed on the flexible circuit board light;

The flexible circuit board is attached to the surface of the bracket; the SMD LED lamp is electrically connected to the flexible circuit board;

The outer casing also has an opening that communicates with the accommodating cavity;

The wire is electrically connected to the flexible circuit board; a free end of the wire protrudes from the opening.
The LED perforated lamp of claim 1 wherein said LED The perforated lamp further includes a lens; the outer casing further has an upper opening in communication with the receiving cavity;

The lens is disposed above the SMD LED lamp, and the lens is adjacent to the SMD LED One end of the lamp is received in the accommodating cavity, and the lens is exposed away from an end of the SMD LED lamp.
The LED perforated lamp according to claim 2, wherein said lens is adjacent to said chip LED One end of the lamp extends toward the receiving cavity to form a latching portion, and the lens is clamped on the bracket.
LED according to claim 3 The perforating lamp is characterized in that the bracket is provided with a sliding groove for inserting and restraining the holding portion.
LED according to claim 3 The perforating lamp is characterized in that: the bracket is provided with a pair of limiting card slots, and the holding portion is provided with a pair of hooks matched with the pair of limiting slots.
LED according to claim 1 A perforated lamp, characterized in that the outer casing is formed by injection molding or overmolding, which is wrapped around the outer side of the lamp body assembly.
The LED perforated lamp of claim 1 wherein said flexible circuit board includes means for mounting said chip LED a top plate portion of the lamp and two side plate portions connected to both sides of the top plate portion and extending along a height direction of the bracket;

The top plate portion is in contact with a top surface of the bracket, and the two side plate portions are in contact with a side surface of the bracket.
The LED perforated lamp of claim 7 wherein the top surface of the bracket and A holding block for holding the flexible circuit board is formed on a side of the bracket or the bracket.
LED according to claim 7 The perforating lamp is characterized in that at least one pair of positioning holes are disposed on the two side plate portions, and at least one pair of positioning posts that cooperate with the at least one pair of positioning holes are formed on a side surface of the bracket.
The LED perforated lamp according to claim 1, wherein the outer casing is made of PVC. Material or thermoplastic elastomer or low pressure molding compound or low pressure injection molding plastic.
The LED perforated lamp according to claim 1, wherein the bracket is made of a PC material.
LED according to claim 1 A perforated lamp characterized in that said opening for the free end of said wire is provided at a lower end or side of said outer casing.