CN212251100U

CN212251100U - Semi-airtight packaging device for optical device

Info

Publication number: CN212251100U
Application number: CN202021823319.1U
Authority: CN
Inventors: 周情; 丁征; 卢浩
Original assignee: Sichuan Huatuo Optical Communication Co ltd
Current assignee: Sichuan Huatuo Optical Communication Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2020-12-29
Anticipated expiration: 2030-08-27

Abstract

The utility model discloses a semi-airtight packaging hardware of optical device, include: the main engine room is internally provided with a central cabin; the first side cabin and the second side cabin are respectively and fixedly arranged at two sides of the central cabin, a first sealing door is arranged between the first side cabin and the central cabin, and a second sealing door is arranged between the second side cabin and the central cabin; an inlet sealing door is arranged on the side surface of the first side cabin, and an outlet sealing door is arranged on the side surface of the second side cabin; the main engine cabin is electrically connected with the central cabin, the main engine cabin is connected with an inert gas conveying device, and an inert gas conveying pipeline is connected between the main engine cabin and the central cabin; the upper part of the main engine room is provided with an upper end sealing port; the front part of the central cabin is provided with a side sealing port; a heating device is installed in the first side cabin. The utility model discloses a semi-airtight packaging hardware of optical device and semi-airtight packaging technology easy operation can effectively prevent steam to get into, have prolonged the life of optical device.

Description

Semi-airtight packaging device for optical device

Technical Field

The utility model belongs to the technical field of the optical communication device encapsulation, more specifically says, the utility model relates to a semi-airtight packaging hardware of optical device.

Background

In the field of optical communication active optical devices, the packaging of the active optical devices is divided into two modes, one mode is airtight packaging, and the other mode is non-airtight packaging. The advantages and disadvantages of both types of encapsulation devices are briefly described below

An airtight packaging apparatus: the enclosed space is filled with inert gas, and the seal assemblies are combined by resistance welding or other fusion welding modes. Such as the common TO package, BOX, butterfly package in active optical device packages. Hermetic packaged devices with leak rates less than 5e-8atm cc/sec can generally be achieved as per method 1014.10 at MIL-STD-883G. The advantage is that subassembly sealing part adopts the welding, effectively isolated outside steam's erosion, and inside inert gas that fills simultaneously is difficult for condensing into liquid when receiving high low temperature to change, and the dual mode prevents effectively that steam from corroding photoelectric chip or parts. Especially, the element such as TEC is corroded by moisture, so that the working efficiency of the element is reduced and even the element is damaged. The disadvantages are that: the equipment sealed by adopting the welding mode is made of kovar metal like the material used by resistance welding, the requirements on the flatness and the like of base processing are higher, the sealing welding equipment and the BOX \ TO header are expensive, and the repairing and the recycling of components are difficult after welding. Which is a constraint on the packaging cost. The equipment generally used for such hermetic sealing apparatuses is resistance welding apparatuses such as a parallel seam welder and a capping machine.

The non-airtight packaging method comprises the following steps: generally, a method for dispensing and sealing an optically active device by using glue is adopted. Such as COB encapsulation equipment common to active optical devices. The advantages of such a packaging device are: the process is flexible, the pipe body and the shell can be processed by self, and the cost is low. The defect is that the air tightness is poor, and the internal air is easy to be condensed into water vapor to be attached to the surface of the element or the glue to damage the element due to the change of the temperature, so that the service life of the optical device is short. The used equipment is generally a glue dispenser and baking equipment. The point gum machine and the baking equipment are all exposed to use in the environment of air, and steam is sealed in the optical device cavity by glue in the air, and when the device received high low temperature, the steam of condensing easily attached to the photoelectric element surface, reduces photoelectric element's life.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages which will be described later.

To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided a light device semi-hermetic packaging apparatus including:

the main engine room is internally provided with a central cabin;

the first side cabin and the second side cabin are respectively and fixedly arranged at two sides of the central cabin, a first sealing door is arranged between the first side cabin and the central cabin, and a second sealing door is arranged between the second side cabin and the central cabin; an inlet sealing door is arranged on the side surface of the first side cabin, and an outlet sealing door is arranged on the side surface of the second side cabin;

the main engine cabin is electrically connected with the central cabin, the main engine cabin is connected with an inert gas conveying device, and an inert gas conveying pipeline is connected between the main engine cabin and the central cabin;

the upper part of the main cabin is provided with an upper end sealing port for connecting an ultraviolet lamp light source and a dispensing device; the front part of the central cabin is provided with a side sealing port; and a heating device is arranged in the first side cabin.

Preferably, the structure of the heating device comprises:

the electric heaters are respectively and fixedly arranged on the inner wall of the first side cabin; the two ends of the electric heater are fixed ends for installation and fixation, a spiral resistance wire is arranged in the electric heater, and a cylindrical ceramic plate is sleeved outside the spiral resistance wire; two ends of the spiral resistance wire are connected with an external power supply;

the fan is arranged in the first side cabin, and an outlet of the fan is connected with an air outlet nozzle; the air outlet nozzle is disc-shaped, and a circle of air outlet holes which are annularly arranged are formed in the air outlet nozzle;

the tray is arranged in the first side cabin, and the lower end of the tray is fixedly connected with a supporting rod; a plurality of ventilation grooves are formed in the tray.

Preferably, the rear end of the central cabin is fixedly connected with a rear cabin, a rear end sealing door is arranged between the rear cabin and the central cabin, and a rear end heating device is arranged in the rear cabin.

Preferably, the ultraviolet lamp light source extends into the central cabin through a pipeline, and the pipeline and the upper end sealing port are arranged in a sealing mode.

Preferably, a sealing glove is connected in the side sealing port.

Preferably, the rear end heating device has a structure including:

the aluminum alloy heating plate is fixedly arranged in the rear cabin and is of a groove-shaped structure, a device clamp is arranged in the aluminum alloy heating plate, and two ends of the aluminum alloy heating plate are connected with cylindrical resistance heaters;

and the air heater is fixedly arranged in the rear cabin and is positioned right above the device clamp. The utility model discloses at least, include following beneficial effect:

(1) inert gas is filled in the sealed area of the optical device, so that the service life of elements such as TEC (thermoelectric cooler) and the like is effectively prolonged

(2) The ultraviolet glue is light-cured, is not easy to generate cavities, and effectively prevents water vapor from entering a sealed space

(3) The thermosetting glue can secondarily supplement the sealing effect of the ultraviolet glue, prevent the decomposition of water vapor on the ultraviolet glue, prolong the sealing time of the ultraviolet glue and delay the diffusion of inert gas in the sealed space

(4) Similar to the conventional non-airtight packaging, the packaging method adopts a dispensing mode for sealing, is simple to operate, and does not need expensive materials such as a shell of airtight packaging and the like. Brings great free creation space for optical device designers, and has low cost and convenient operation.

(5) Similar to the gas seal device, the sealed space is filled with inert gas without hydrogen and oxygen, thereby avoiding the possibility of water vapor condensation generated inside.

(6) The inside stops the steam condensation, and glue forms a protection film between sealing interface, has effectively kept out the erosion of outside steam, has effectively mentioned the life of optical device.

(7) The whole semi-airtight packaging device for the optical device can realize that the product is sealed in a dry inert gas environment.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Description of the drawings:

fig. 1 is a schematic structural view of a semi-hermetic packaging apparatus for optical devices provided by the present invention;

fig. 2 is a cross-sectional view of the semi-hermetic packaging apparatus for optical devices provided by the present invention;

FIG. 3 is a schematic view of the internal structure of the first side cabin;

FIG. 4 is a schematic sectional view of the inside of the rear compartment;

fig. 5 is a schematic view of a nozzle structure.

The specific implementation mode is as follows:

the present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

It should be noted that in the description of the present invention, the terms indicating the orientation or the positional relationship are based on the orientation or the positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, such as "connected," which may be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, or a connection between two elements, and those skilled in the art will understand the specific meaning of the terms in the present invention in a specific context.

Furthermore, in the present disclosure, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature in direct contact with the first and second features, or in indirect contact with the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-5: the utility model discloses a semi-airtight packaging hardware of optical device, include:

a main cabin 1, a central cabin 2 is arranged in the main cabin;

the first side cabin 3 and the second side cabin 4 are respectively and fixedly arranged at two sides of the central cabin 2, a first sealing door 32 is arranged between the first side cabin 3 and the central cabin 2, and a second sealing door 42 is arranged between the second side cabin 4 and the central cabin 2; the side surface of the first side cabin 3 is provided with an inlet sealing door 31, and the side surface of the second side cabin is provided with an outlet sealing door 41;

the main engine room 1 is electrically connected with the central cabin 2, the main engine room 1 is connected with an inert gas conveying device, and an inert gas conveying pipeline (not shown) is connected between the main engine room 1 and the central cabin 2;

the upper part of the main cabin 1 is provided with an upper end sealing port 6 for connecting an ultraviolet lamp light source 5; the front part of the central cabin 2 is provided with a side sealing port 7; a heating device is installed in the first side chamber 3.

The working principle is as follows: putting the product to be sealed into the first side cabin 3, opening the heating device, drying the first side cabin 3, and removing moisture to enable the product to be sealed to be in a dry environment; putting a product to be sealed into the central cabin 2, vacuumizing the central cabin 2, and filling inert gas into the central cabin 2; and in the environment that the central cabin 2 is filled with inert gas, the product to be sealed is subjected to glue dispensing operation, and after the glue dispensing is solidified, the product is transferred out from the second side cabin 4. The first side cabin 3 is used for removing moisture in the first side cabin 3 and providing a dry environment for dispensing; after the dispensing and curing, the central cabin 2 is filled with inert gas, so that a second side cabin 4 is arranged; before delivering the product out of the central compartment 2, the second sealing door 42 between the second side compartment 4 and the central compartment 2 is opened to deliver the product into the second side compartment 4, and then the second sealing door 42 is closed and the outlet sealing door 41 is opened to deliver the product out of the second side compartment 4, so that the second side compartment 4 can effectively prevent the gas in the external environment from entering the central compartment 2, and simultaneously can prevent the inert gas in the central compartment 2 from diffusing to the external environment.

In the above technical solution, the heating device has a structure including:

a plurality of electric heaters 10 fixedly provided on the inner walls of the first side compartments 3, respectively; two ends of the electric heater 10 are fixed ends 101 for installation and fixation, a spiral resistance wire 102 is arranged in the electric heater 10, and a cylindrical ceramic plate 103 is sleeved outside the spiral resistance wire 102; two ends of the spiral resistance wire 102 are connected with an external power supply;

the fan 11 is arranged in the first side cabin 3, and an air outlet nozzle 12 is connected to the outlet of the fan; the air outlet nozzle 12 is disc-shaped, and a circle of air outlet holes 121 which are annularly arranged are arranged on the air outlet nozzle 12;

a tray 13 which is arranged in the first side cabin 3 and the lower end of which is fixedly connected with a support rod 131; the tray 13 is provided with a plurality of ventilation grooves 132. The electric heater 10 is used for heating the air in the first side chamber 3 to remove moisture and humidity in the first side chamber 3; the fan 11 is arranged to accelerate the flow speed of air in the first side chamber 3, that is, the removal speed of moisture and humidity in the first side chamber 3 can be increased, and the air outlet holes 121 annularly arranged on the nozzle 12 are used for diffusing the wind direction coming out of the fan 11 all around and increasing the flow diffusion area; the tray 13 is used for placing the product to be sealed, and the ventilation groove 132 formed in the tray 13 can enable hot air to heat the bottom of the product to be sealed, so that moisture and moisture in the first side cabin 3 can be removed more thoroughly.

In the technical scheme, the rear cabin 8 is fixedly connected to the rear end of the central cabin 2, a rear end sealing door is arranged between the rear cabin 8 and the central cabin 2, and a rear end heating device is arranged in the rear cabin 8.

In the technical scheme, the ultraviolet lamp light source 5 extends into the central cabin 2 through a pipeline, and the pipeline and the upper end sealing port 6 are arranged in a sealing mode.

In the above technical solution, a sealing glove (not shown) is connected in the side sealing port 7, and this arrangement is convenient for an operator to enter the central cabin 2 through the sealing glove to perform dispensing and sealing operations.

In the above technical solution, the rear end heating apparatus has a structure including:

the aluminum alloy heating plate 14 is fixedly arranged in the rear cabin 8 and is of a groove-shaped structure, a device clamp 141 is arranged in the aluminum alloy heating plate 14, and two ends of the aluminum alloy heating plate 14 are connected with cylindrical resistance heaters 15;

and the air heater 16 is fixedly arranged in the rear cabin, and the air heater 16 is positioned right above the component clamp 141. The rear cabin 8 is used for carrying out thermocuring on the products subjected to secondary dispensing, the products are placed into the device clamp, the resistance heater 15 heats the aluminum alloy heating plate 14, and the aluminum alloy heating plate 14 is heated so as to cure the glue on the products; meanwhile, the hot air blower 16 blows hot air to further thermally cure the glued product; the aluminum alloy heating plate 14 has good heat conductivity, and can heat the product quickly, and the device clamp 141 is made of aluminum alloy.

The process for carrying out semi-airtight sealing by using the semi-airtight packaging device of the optical device comprises the following steps:

opening an inlet sealing door 31 of the first side cabin 3, putting a product to be sealed into the first side cabin 3, starting a heating device, and heating and baking to remove moisture and humidity in the first side cabin 3; opening a first sealing door 32 between the first side cabin 3 and the central cabin 2, putting a product to be sealed into the central cabin 2, then closing the first sealing door 32, and finally vacuumizing the central cabin 2, wherein the vacuum degree of the central cabin is less than 0.1 MPa; filling inert gas into the central cabin 2; in the environment that the central cabin 2 is filled with inert gas, the parts of the products to be sealed, which need to be sealed, are fully covered with ultraviolet glue, and all the gap positions of the products to be sealed are uniformly covered with ultraviolet glue; opening an ultraviolet lamp light source 5 of the central cabin 2, and carrying out ultraviolet glue curing on the product for 5-120 s; performing secondary sealing dispensing on the ultraviolet glue cured product by using a dispensing device, or coating natural curing glue outside the ultraviolet glue; curing the glue subjected to secondary sealing dispensing in a downward environment by blowing inert gas, wherein the curing time is 15-150 min; opening a second sealing door 42 between the second side cabin 4 and the central cabin 2, opening an outlet sealing door 41 of the second side cabin, and transferring the solidified product out of the second side cabin 4; by this point, the semi-hermetic packaging operation of the optical device is completed.

The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims

1. A semi-hermetic package device for an optical device, comprising:

the main engine room is internally provided with a central cabin;

2. The light device semi-hermetic packaging apparatus of claim 1, wherein the heating apparatus is configured to comprise:

3. The optical device semi-hermetic sealing apparatus as claimed in claim 1, wherein a rear chamber is fixedly connected to a rear end of the central chamber, a rear end sealing door is disposed between the rear chamber and the central chamber, and a rear end heating device is disposed in the rear chamber.

4. The light device semi-hermetic package of claim 1, wherein the ultraviolet lamp light source extends into the central chamber through a conduit and is sealed to the upper end seal port.

5. The light device semi-hermetic packaging apparatus of claim 1, wherein a sealing glove is attached within the side sealing port.

6. The optical device semi-hermetic packaging apparatus according to claim 3, wherein the structure of the back-end heating apparatus comprises:

and the air heater is fixedly arranged in the rear cabin and is positioned right above the device clamp.