WO2015018098A1

WO2015018098A1 - Novel injection type lamp head

Info

Publication number: WO2015018098A1
Application number: PCT/CN2013/081426
Authority: WO
Inventors: 樊邦弘
Original assignee: Fan Banghong
Priority date: 2013-08-07
Filing date: 2013-08-14
Publication date: 2015-02-12
Also published as: CN203442571U

Abstract

A waterproof injection type lamp head comprises an LED (1), comprising a package body (12) and a lamp pin (11); a wire (2), electrically connected to the lamp pin (11) of the LED; a light transmitting bulb casing (3) with an internal cavity, the LED package body (4) being accommodated in the cavity; a sealing piece (4), arranged on the open end of the light transmitting bulb casing (3) and used for sealing the cavity, wherein the sealing piece (4) is provided with a through hole matching the lamp pin (11) of the LED, the lamp pin (11) of the LED (1) passes through the through hole, a part of the sealing piece (4) is accommodated in the cavity of the light transmitting bulb casing (3), and resin is filled between the lamp pin (11) of the LED (1) and the through hole; an injection-molded lamp holder (6), wherein the lamp holder (6) covers the tail of the light transmitting bulb casing (3), a part of the wire, an electrical connection point between the LED (1) and the wire (2), and the part of the sealing piece (4) exposed outside the bulb casing (3). The injection type lamp head solves the problems that an injection mold material enters the bulb casing and the waterproof performance is poor.

Description

A new type of beer-type lamp holder

Technical field

The utility model relates to the field of decorative lamps, in particular to a novel beer-type lamp holder.

Background technique

Light strings are common lighting. The production process of the existing decorative lamp string of the beer-type lamp holder is generally as follows: The LED is connected to the wire and placed in the light-transmissive bulb, and then the lamp holder is molded at the tail of the light-transmissive bulb. The lamp holder covers the electrical connection point between the wire, the wire and the LED. As disclosed in Chinese Patent Application No. 200410007211.4, the disclosed LED package includes the following production process: connecting the LED to the wire group, placing it in the cavity of the transparent cover, and molding the covered wire at the opening of the transparent cover. The electrical connection between the set, the contact set and the wire set and the integrally molded plastic sleeve of the partially transparent cover. Compared with the combined lamp caps and glue-filled caps, the beer-injected lamp caps produced according to this process have greatly improved the waterproof and insulating properties, but still have the following drawbacks and disadvantages: First, in the process of injection molding the lamp holder The higher temperature rubber compound may rush into the cavity of the bulb, block the bulb and burn the LED, which seriously affects the yield; secondly, the injection lamp holder is made of hard plastic such as PP, and the coated wire It is a rubber with good flexibility. The inconsistency between hardness and ductility of the two causes inevitable gap between the injection lamp holder and the wire. In the long-term harsh outdoor environment, these voids may cause moisture to enter the lamp cap. Cause damage or even a safety incident.

technical problem

The purpose of the utility model is to provide a novel beer-type lamp holder, which fundamentally solves the problem that the injection molding compound is punched into the bulb and the waterproof performance is poor.

Technical solution

A novel beer-type lamp holder characterized by:

An LED, including a package body and a lamp foot;

a wire electrically connected to the lamp leg of the LED;

a light-transmissive bulb having a cavity therein, the package body of the LED being placed in the cavity;

a sealing member mounted on the open end of the light-transmitting bulb for sealing a cavity, the sealing member being provided with a through hole matching the lamp pin of the LED, the lamp leg of the LED passing through the through hole The sealing member is partially accommodated inside the cavity of the light-transmitting bulb, and the resin is filled with resin between the lamp pin and the through hole;

Through the injection molded lamp holder, the lamp holder covers the tail portion of the light-transmitting bulb, a part of the wire, the electrical connection point between the lamp pin of the LED and the wire, and the portion of the sealing member exposed outside the bulb.

Further, the seal includes an insertion portion that is received inside the open end of the light transmissive bulb.

Further, the sealing member further includes a thrust portion protruding from the bottom end of the insertion portion and stopping at the outer edge of the open end of the light transmissive bulb.

Further, the seal is provided with a circular recess that surrounds a portion of the package of the LED.

Further, the package of the LED is closely attached to the sealing member

Further, the through hole is narrowed from the top to the bottom.

Further, a spacer is disposed between the lamp legs of the LED, and the spacer is located under the seal, and the spacer isolates the lamp pin and a part of the wire of the LED.

Further, the outer surface of the light transmissive bulb is provided with at least one annular groove, which is covered by the lamp holder.

Further, the resin is an epoxy resin or a silicone resin.

Beneficial effect

Since the resin is filled with resin between the lamp pin of the LED and the through hole of the sealing member, the gap between the lamp post and the sealing member of the light-transmitting bulb is prevented from entering the cavity of the bulb during the injection molding process of the lamp holder, and is blocked. The blister and the burnt LED prevent the moisture entering from the gap between the wire and the lamp holder from further infiltrating into the blister cavity during long-term use, which greatly improves the waterproof performance of the lamp cap.

DRAWINGS

Figure 1 is a schematic view of the lamp head of the present invention connected to a light string;

Figure 2 is a perspective view of the utility model;

Figure 3 is a schematic longitudinal sectional view of the first embodiment of the present invention;

4 is a perspective view of an LED and a sealing member according to Embodiment 1 of the present invention;

5 is a schematic longitudinal sectional structural view of an LED and a sealing member according to Embodiment 1 of the present invention;

Figure 6 is a perspective view of the LED and the sealing member of the second embodiment of the present invention;

7 is a schematic longitudinal sectional view of an LED and a sealing member according to Embodiment 2 of the present invention.

Embodiments of the invention

The present invention will be further described by way of embodiments with reference to the accompanying drawings. The embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of the present invention.

Referring to Figures 1 and 2, the beer-type lamp cap of the present invention comprises a light-transmitting bulb 3 and a lamp holder 6, and the wire 2 is connected to a plurality of lamp caps to form a lamp string.

Referring to FIG. 3 to FIG. 5 , the beer-type lamp cap of the first embodiment of the present invention comprises an LED 1 , a wire 2 electrically connected to the lamp pin 11 of the LED 1 , a light-transmitting bulb 3 with a cavity inside, and a light-transmissive bulb. The sealing member 4 of the sealed cavity at the open end of 3 passes through the injection molded lamp holder 6. The LED 1 includes a package body 12 and a lamp pin 11, and the package body 12 is housed in a cavity of the light-transmitting bulb 3. The seal 4 is provided with a through hole that matches the leg 11 of the LED 1. The sealing member 4 includes an insertion portion 41 and a thrust portion 42. The insertion portion 41 is received inside the open end of the light-transmitting bulb, and the thrust portion 42 protrudes from the bottom end of the insertion portion 41 and stops at the opening of the light-transmitting bulb 3. The outer edge of the end. The package 12 of the LED is in close contact with the sealing member 4, and the lamp pin 11 is electrically connected to the wire 2 through the through hole. The socket 6 covers a portion of the wire, the electrical connection point 5 between the lamp pin 11 of the LED 1 and the wire 2, and the portion of the sealing member 4 that is exposed outside the bulb.

In order to facilitate the lamp foot 11 of the LED passing through the sealing member 4, the through hole of the sealing member 4 is narrowed from the top to the bottom, and there is a fine gap between the lamp pin 11 and the through hole. In order to fill these gaps, resin 7 can be applied to the lamp pins 11 or through holes in advance. The lamp foot 11 is then passed through the through hole. The resin 7 may be an epoxy resin or a silicone resin.

led A spacer 8 is disposed between the lamp legs 11, and the spacer 8 is located below the sealing member 4. The spacer 8 isolates the lamp pins 11 of the LED and a portion of the conductive wires.

The outer surface of the light-transmitting bulb 3 is provided with an annular groove 9 which is covered with an annular groove 9 after injection molding, and is fixedly stuck between the two.

Referring to Figures 6 and 7, the seal 4 is further modified in the second embodiment. The sealing member 4 is provided with a circular recess 43 which, when assembled with the sealing member, encloses a portion of the package 12 of the LED for better sealing. Other points include LED 1, lamp 11 and resin 7 which are substantially identical and will not be described here.

The above description is only for the convenience of the present invention, and any simple modifications and variations made by those skilled in the art who are well aware of the present technology are still within the scope of the present invention.

Claims

A novel beer-type lamp holder characterized by:

An LED, including a package body and a lamp foot;

a wire electrically connected to the lamp leg of the LED;

a light-transmissive bulb having a cavity therein, the package body of the LED being placed in the cavity;

a sealing member mounted on the open end of the light-transmitting bulb for sealing a cavity, the sealing member being provided with a through hole matching the lamp pin of the LED, the lamp leg of the LED passing through the through hole The sealing member is partially accommodated inside the cavity of the light-transmitting bulb, and the resin is filled with resin between the lamp pin and the through hole;

Through the injection molded lamp holder, the lamp holder covers the tail portion of the light-transmitting bulb, a part of the wire, the electrical connection point between the lamp pin of the LED and the wire, and the portion of the sealing member exposed outside the light-transmitting bulb.
A novel beer-type burner according to claim 1, wherein said sealing member comprises an insertion portion, said insertion portion being received inside the open end of the light-transmitting bulb.
A novel beer-type burner according to claim 2, wherein the sealing member further comprises a thrust portion protruding from the bottom end of the insertion portion and stopping at the light-transmitting bulb The outer edge of the open end.
A novel beer-type burner according to claim 3, wherein said sealing member is provided with a circular recess which surrounds a portion of the package of the LED.
A novel beer-type burner according to claim 4, wherein the package of the LED is in close contact with the sealing member.
A novel beer-type burner according to claim 5, wherein said through hole is narrowed from width to width.
A novel beer-type lamp cap according to claim 6, wherein a spacer is disposed between the lamp legs of the LED, the spacer is located below the seal, and the spacer is to be LED The lamp foot and part of the wire are isolated.
A novel beer-type lamp cap according to claim 7, wherein the outer surface of the light-transmissive bulb is provided with at least one annular groove, and the annular groove is covered by the lamp holder.
A novel beer-type burner according to claim 8, wherein the resin is an epoxy resin or a silicone resin.