CN213636026U

CN213636026U - Heating box for inorganic packaging of LED

Info

Publication number: CN213636026U
Application number: CN202022937894.0U
Authority: CN
Inventors: 梁依雯; 赵明深; 王芝烨
Original assignee: Hongli Zhihui Group Co Ltd
Current assignee: Hongli Zhihui Group Co Ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-07-06
Anticipated expiration: 2030-12-10

Abstract

The utility model provides a heating cabinet is used in inorganic encapsulation of LED, includes box and sealed lid, the box forms confined space with sealed lid cooperation, the box includes interior wall layer and outer wall layer, forms the accommodation space between interior wall layer and the outer wall layer, be equipped with the heating rod in the accommodation space, sealed lid is the sealed lid of enstrophe formula. The utility model discloses utilize sealed heating cabinet to heat the inorganic packaging structure of LED and make the glue solidification, under the normal atmospheric temperature, atmospheric pressure in the encapsulation and the atmospheric pressure in the heating cabinet are balanced, and the heating back, atmospheric pressure in the encapsulation risees, and the atmospheric pressure risees in the heating cabinet simultaneously, so the inside and outside atmospheric pressure of encapsulation is still keep balanced, and glue can not appear because of the inside air flue appearance that the atmospheric pressure is uneven arouses.

Description

Heating box for inorganic packaging of LED

Technical Field

The utility model belongs to the technical field of the LED encapsulation and specifically relates to a LED is heating cabinet for inorganic encapsulation.

Background

At present, it can be known that, a deep ultraviolet LED needs to be packaged in an inorganic manner, which is more than inorganic packaging, but is usually packaged in a manner of matching a metal bracket with a glass cover plate, and the packaging process is as follows: and (3) fixing the crystal in the metal support, dispensing on the top of the metal support, covering a glass cover plate on the top of the metal support, putting the metal support and the glass cover plate into a hot air circulating furnace for baking, and curing the glue by utilizing circulating hot air. Although the glass cover plate and the metal support can be combined by solidifying the glue in the heating mode, in the heating process, the air pressure in the metal support is increased due to the fact that the air in the metal support is heated and expanded, the pressure in the hot air circulating furnace is kept unchanged, when the air pressure in the metal support exceeds a critical value, the air pressure in the metal support can penetrate through the glue to be decompressed, and therefore an air passage is reserved in the glue and enables the metal support to be communicated with the outside, and the sealing performance of packaging is affected.

Disclosure of Invention

The utility model aims to solve the technical problem that a LED is heating cabinet for inorganic encapsulation is provided, solve the heating process and lead to sealed glue to leave the problem of air flue because of atmospheric pressure is uneven.

In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides a heating cabinet is used in inorganic encapsulation of LED, includes box and sealed lid, the box forms confined space with sealed lid cooperation, the box includes interior wall layer and outer wall layer, forms the accommodation space between interior wall layer and the outer wall layer, be equipped with the heating rod in the accommodation space, sealed lid is the sealed lid of enstrophe formula. The utility model discloses utilize sealed heating cabinet to heat the inorganic packaging structure of LED and make the glue solidification, under the normal atmospheric temperature, atmospheric pressure in the encapsulation and the atmospheric pressure in the heating cabinet are balanced, and the heating back, atmospheric pressure in the encapsulation risees, and the atmospheric pressure risees in the heating cabinet simultaneously, so the inside and outside atmospheric pressure of encapsulation is still keep balanced, and glue can not appear because of the inside air flue appearance that the atmospheric pressure is uneven arouses.

As an improvement, a heat-insulating layer is arranged outside the outer wall layer.

As an improvement, the box body is cylindrical, and the heating rods are uniformly distributed on the circumference.

As the improvement, the top of box is equipped with the shrouding, and the middle part of shrouding is equipped with gets the material mouth, and the bottom surface of shrouding is the plane, is equipped with the sealing washer between the bottom surface of sealed lid and shrouding.

As an improvement, a pressure gauge and a pressure relief valve are arranged on the box body.

Compared with the prior art, the utility model the beneficial effect who brings is:

the utility model discloses utilize sealed heating cabinet to heat the inorganic packaging structure of LED and make the glue solidification, under the normal atmospheric temperature, atmospheric pressure in the encapsulation and the atmospheric pressure in the heating cabinet are balanced, and the heating back, atmospheric pressure in the encapsulation risees, and the atmospheric pressure risees in the heating cabinet simultaneously, so the inside and outside atmospheric pressure of encapsulation is still keep balanced, and glue can not appear because of the inside air flue appearance that the atmospheric pressure is uneven arouses.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in FIG. 1, the heating box for inorganic packaging of the LED comprises a box body 11 and a sealing cover 12, wherein the box body 11 and the sealing cover 12 are matched to form a sealing space 16. The box body 11 is a metal box body and can bear certain pressure; the box body 11 is cylindrical and comprises an inner wall layer 112 and an outer wall layer 111, an accommodating space is formed between the inner wall layer 112 and the outer wall layer 111, heating rods 13 are arranged in the accommodating space, the heating rods 13 are uniformly distributed in the circumferential direction, and the heating rods 13 heat the LED inorganic packaging structure 2 in the box body 11 through the reflection of thermal radiation, so that glue in the package is cured; and a heat insulation layer is arranged outside the outer wall layer 111. And a pressure gauge and a pressure relief valve are arranged on the box body 11. A sealing plate 14 is arranged at the top of the box body 11, a material taking port 15 is arranged in the middle of the sealing plate 14, the bottom surface of the sealing plate 14 is a plane, and a sealing ring is arranged between the sealing cover 12 and the bottom surface of the sealing plate 14; the sealing cover 12 is an inverted sealing cover 12. The sealing cover 12 can bear larger air pressure in the box body 11 without flying out, and the safety is better.

The heating box 1 of the utility model is used for heating and curing the glue of the LED inorganic packaging structure 2, the LED inorganic packaging structure comprises a metal bracket and a glass cover plate, and during packaging, the crystal is firstly fixed in the metal bracket; then, glue is dispensed on the top of the metal bracket; then covering a glass cover plate on the top of the metal bracket, and attaching the edge of the glass cover plate to the top of the metal bracket through glue to form a closed space; and (3) transferring the metal support communicated glass cover plate into the heating box, and heating and curing the glue by utilizing the heat radiation of the inner wall of the heating box.

Claims

1. The utility model provides a LED is heating cabinet for inorganic encapsulation which characterized in that: including box and sealed lid, the box forms confined space with sealed lid cooperation, the box includes interior wall layer and outer wall layer, forms the accommodation space between interior wall layer and the outer wall layer, be equipped with the heating rod in the accommodation space, sealed lid is the sealed lid of enstrophe formula.

2. The heating box for inorganic packaging of LED according to claim 1, wherein: and a heat insulation layer is arranged outside the outer wall layer.

3. The heating box for inorganic packaging of LED according to claim 1, wherein: the box is the cylinder type, heating rod is the circumference evenly distributed.

4. The heating box for inorganic packaging of LED according to claim 1, wherein: the top of box is equipped with the shrouding, and the middle part of shrouding is equipped with gets the material mouth, and the bottom surface of shrouding is the plane, is equipped with the sealing washer between the bottom surface of sealed lid and shrouding.

5. The heating box for inorganic packaging of LED according to claim 1, wherein: and the box body is provided with a pressure gauge and a pressure relief valve.