CN218333834U - Highly dampproofing LED pilot lamp of using - Google Patents

Abstract

The utility model discloses a highly moisture-proof LED indicating lamp, which comprises LED lamp beads and 2 pins extending out of the bottoms of the LED lamp beads; wherein, 2 pins are sleeved with pin lead heat-shrinkable sleeves; and an elastic colloid layer which is formed by solidifying liquid flexible glue into a whole is arranged between the pin of the lamp bead and the pin lead wire heat-shrinkable sleeve, on the bottom plane of the lamp bead and at the contact end of the pin lead wire heat-shrinkable sleeve and the bottom plane of the lamp bead. The utility model discloses an effectual improvement measure makes LED pilot lamp make LED's pin can reliably completely cut off with the external world with effectual LED pin sealing mode to avoid moisture, steam to the erosion of LED pin, improved the dampproofing quality of pin of this product, make the electrical apparatus of using this product can easily pass through various ann rule tests, satisfied customer's requirement.

Description

Highly dampproofing LED pilot lamp of using

The technical field is as follows:

the utility model relates to a LED pilot lamp especially relates to a highly dampproofing LED pilot lamp of using.

Background art:

LEDs are used in a wide range of applications, often as indicator lights in addition to normal lighting applications. The LED indicator lamp can also be used in a damp occasion, such as an indicator lamp of a hot water kettle, and the pins of the LED indicator lamp can be oxidized, rusted and corroded until the LED lamp fails due to the fact that a large amount of hot moisture is boiled when water is boiled. In addition, composed ofThe insulation effect is not good, the risk of series voltage short circuit exists in the circuit, and meanwhile, a customer may not pass the safety test (high voltage test or overflow test). Therefore, in order to prevent the pins of the LED lamp from being damaged, the conventional treatment method is to combine the LED and the lead wires into a waterproof LED lamp wire assembly, as shown in fig. 1, the LED lamp wire assembly is composed of anLED lamp bead 1 and 2pins 2 extending from the bottom of the LED lamp bead; the 2pins 2 are respectively connected with anextension lead 3; the connection part of thepin 2 and theextension lead 3 is pressed and fixed by a wiring terminal 4; thepin 2 and part of theextension lead 3 are sleeved with a pin lead heat-shrinkable sleeve 5; a heat-shrinkable sleeve 6 for the pins of the lamp body is sleeved between the lower section of the lamp bead 1 and thepins 2. However, in practice, the pin wire heat-shrinkable sleeve 5 is usually adopted due to the large size of the terminal 4

To

Sleeving the heat shrink tube with a sleeve, wherein the pins cannot be tightly sleeved after the heat shrink tube shrinks, so that a certain gap is reserved; in addition, after the lamp body pin heat-shrinkable sleeve 6 wrapped between the lamp bead 1 and the pins shrinks, a large gap is also left between the lamp body pin heat-shrinkable sleeve 6 and the two pin lead heat-shrinkable sleeves 5; therefore, thepin 2, the extension lead wire connecting interface and the wiring terminal 4 cannot be completely sealed, and water vapor can permeate into the LED pin through the existing gap position, so that the pin is oxidized, rusted and corroded until the LED lamp fails. It is also for this reason that the customer fails the safety tests (e.g., flood, high pressure, tide). How to make the pin of LED have better dampproofing effect, make the product reach the requirement of ann rule test, the problem of the life of extension LED product is the problem that hopes to solve in this line.

The invention content is as follows:

the utility model aims at overcoming above-mentioned prior art's shortcoming and not enough, provide a LED pilot lamp for highly dampproofing to effectual LED pin sealing mode makes LED's pin can reliably be isolated with the external world, thereby avoids the erosion of moisture, steam to the LED pin.

The utility model provides a technical scheme that its technical problem adopted is: a highly moisture-proof LED indicator lamp comprises an LED lamp bead and 2 pins extending out of the bottom of the LED lamp bead; wherein: the 2 pins are sleeved with pin lead heat-shrinkable sleeves; an elastic colloid layer which is formed by solidifying liquid flexible glue into a whole is arranged between the pin of the lamp bead and the pin lead wire heat-shrinkable sleeve, the bottom plane of the lamp bead and the contact end of the surrounding pin lead wire heat-shrinkable sleeve and the bottom plane of the lamp bead, and the section of the elastic colloid layer sleeved on each pin is back-to-back L-shaped).

Further preferably, the liquid flexible glue used for the elastic glue layer is preferably a two-component high-temperature curing silica gel, and the curing conditions are as follows: 150 ℃,1 hour, after the glue is cured, the glue layer has high adhesiveness, high water resistance and certain flexibility, can isolate the lamp bead pins from the outside well, and is not easy to break.

Further, pin wire heat-shrinkable tube adopt (EVA) pyrocondensation pipe, so cooperate the elastic colloid layer that has certain flexibility, can more effectively ensure the long-term effective combination of elastic colloid layer and lamp pearl bottom, pin wire heat-shrinkable tube, and lamp pearl pin.

To prior art in the sealed product of heat shrinkage pipe inner drop glue and my department the utility model discloses the newest technology product carries out 72 hours salt fog simultaneously experimental, and the experimental result shows, and the conventionality makes up into waterproof LED lamp line subassembly product with LED and lead wire because the heat shrinkage pipe glue dropping technology is unstable, can not keep apart completely the salt fog, leads to the pin to seriously corrode, and my department the utility model discloses the position pin of product parcel heat shrinkage pipe has not received the influence completely, has appeared rusty spot except the pin bottom that does not wrap up the heat shrinkage pipe, satisfies corresponding ann rule test completely (like overflow test, high-pressure test, tide state test).

In summary, the LED indicator light for high moisture resistance breaks through a conventional LED consistent method, and the LED indicator light lamp feet are effectively sealed and protected by integrally packaging the LED lamp bead pin sleeve lead wire heat-shrinkable sleeve and the added elastic colloid layer, and the conventional LED does not have the matching; in addition in relevant LED pilot lamp or lamp pearl use, refer to the utility model discloses a technique can effectively guarantee user's LED lamp-line subassembly's the sealed insulating nature (especially heat-shrinkable bush and the sealed joint at lamp body handing-over position), can effectively stop the pin oxidation, rust, corrode, possesses very strong practicality in the aspect of promoting product life, can also satisfy customer's product ann rule test requirement more effectively in addition, and is more excellent than the improvement scheme of current trade to can optimize product cost. Of course, the utility model relates to a still can promote and do insulating other products at other needs LED, have wider extensive using meaning.

The utility model discloses an effectual improvement measure makes LED pilot lamp make LED's pin ability and external reliable isolated with effectual LED pin sealing mode to avoid moisture, steam to the erosion of LED pin, improved the dampproofing quality of pin of this product, make the electrical apparatus of using this product can easily pass through various ann rule tests, satisfied customer's requirement.

Drawings

FIG. 1 is a schematic diagram of a conventional waterproof LED light wire assembly;

fig. 2 is a schematic structural diagram of an LED indicator light according to an embodiment of the present invention.

The specific implementation mode is as follows:

example 1:

as shown in fig. 2, the LED indicator lamp for high moisture resistance comprises anLED lamp bead 11 and 2pins 21 extending from the bottom of the LED lamp bead; wherein: the 2pins 21 are sleeved with a pin wire heat-shrinkable sleeve 51 made of transparent EVA material; anelastic colloid layer 8 which is formed into a whole by solidifying liquid flexible glue is arranged between thepin 11 of the lamp bead and the pin lead heat-shrinkable sleeve 51, the bottom plane of thelamp bead 11 and the contact end of the pin lead heat-shrinkable sleeve 51 and the bottom plane of thelamp bead 11, the cross section of theelastic colloid layer 8 sleeved on each pin is back-to-back L-shaped, the liquid flexible glue adopted by theelastic colloid layer 8 is KDS-3800 series double-component high-temperature solidified silica gel which is produced by Shenzhen Kodass glue Limited company, and the operation method during the specific production is as follows: under the condition that thelamp beads 11 are horizontally arranged, the surfaces of the pins are coated by a dispenserAdding proper amount of the two-component high-temperature curing silica gel with proper viscosity and proper fluidity, and then sheathing

The pin wire heat-shrinkable tube 51 is characterized in that a lamp bead is inverted, a transparent heat-shrinkable tube is in contact with the bottom of the lamp bead, double-component high-temperature curing silica gel on the pin is distributed on the surface of the pin, the inner wall of the pin wire heat-shrinkable tube, the plane of the bottom of the lamp bead and the outer wall of the bottom of the pin wire heat-shrinkable tube under the action of downward gravity, the amount of glue in the heat-shrinkable tube is ensured on one hand, and proper glue flows to the bottom of the lamp bead on the other hand, then the product is placed into a constant-temperature oven for high-temperature baking at 150 ℃ for 1 hour to realize heat-shrinkable tube shrinkage and glue curing, when the heat-shrinkable tube shrinks, part of glue in the heat-shrinkable tube is extruded by the heat-shrinkable tube during shrinkage, and finally, a high-elasticity insulating protective layer wrapped by silica gel and wrapped by an outer heat-shrinkable tube is formed on the surface of the pin after the glue is cured.

To prior art in the sealed product of drop glue in the pyrocondensation pipe and the utility model discloses the LED pilot lamp of embodiment 1 carries out 72 hours salt fog simultaneously experimental, and the experimental result shows, and the conventionality makes up LED and lead wire into waterproof LED lamp line subassembly product can not keep apart completely to the salt fog, leads to the pin to seriously corrode, and the utility model provides a 1 LED pilot lamp, its position pin of wrapping up the pyrocondensation pipe does not receive the influence completely, has appeared rusty spot except that the pin bottom of not wrapping up the pyrocondensation pipe, satisfies corresponding ann's rule test completely (like overflow test, high-pressure test, tide state test).

The above description is only a preferred embodiment of the present invention, and is not intended to limit the structure of the present invention in any way. Any simple modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all still fall within the scope of the technical solution of the present invention.

Claims (3)

1. A highly moisture-proof LED indicator lamp comprises an LED lamp bead and 2 pins extending out of the bottom of the LED lamp bead; the method is characterized in that: the 2 pins are sleeved with pin lead heat-shrinkable sleeves; an elastic colloid layer which is formed by solidifying liquid flexible glue into a whole is arranged between the pins of the lamp beads and the pin lead heat-shrinkable sleeve, on the bottom plane of the lamp beads and at the contact end of the pin lead heat-shrinkable sleeve and the bottom plane of the lamp beads in a surrounding mode, and the cross section of the elastic colloid layer sleeved on each pin is back-to-back L-shaped.

2. The LED indicator lamp for high moisture resistance as set forth in claim 1, wherein: the flexible liquid glue used for the elastic glue layer is double-component high-temperature curing silica gel.

3. The LED indicator lamp for high moisture resistance as set forth in claim 1, wherein: the pin lead wire heat-shrinkable tube is a transparent EVA heat-shrinkable tube.

Images