CN213782475U

CN213782475U - Sealed housing and semiconductor laser

Info

Publication number: CN213782475U
Application number: CN202023198149.5U
Authority: CN
Inventors: 牛奔; 张强; 陈欣; 徐海军
Original assignee: Zhejiang Thermal Stimulation Optical Technology Co ltd
Current assignee: Zhejiang Thermal Stimulation Optical Technology Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-07-23
Anticipated expiration: 2030-12-25

Abstract

The utility model relates to a semiconductor laser technical field particularly, relates to a seal housing and semiconductor laser. The sealing shell comprises a main shell, an opening used for communicating the interior of the main shell is formed in the main shell, a sealing groove is formed in one end, provided with the opening, of the main shell, and the sealing groove is arranged around the opening; and the upper cover is arranged on the main shell body and provided with one end with an opening, the opening of the main shell body is closed, one side of the upper cover, which is close to the main shell body, is provided with a sealing bulge, and a sealing glue is filled between the sealing bulge and the sealing groove. The semiconductor laser comprises a laser body and the sealed housing of any of the previous embodiments; the laser body is arranged in the sealed shell. The sealing mode of the method does not need professional equipment, and the method is simple and easy to realize.

Description

Sealed housing and semiconductor laser

Technical Field

The utility model relates to a semiconductor laser technical field particularly, relates to a seal housing and semiconductor laser.

Background

The semiconductor laser sealing packaging is a process step in the production process of the semiconductor laser, and the traditional semiconductor sealing packaging mainly comprises parallel sealing welding, O-ring sealing and the like. The packaging mainly has the effects of ensuring the air tightness inside the cavity of the laser, preventing the interior from dewing and foreign matter pollution, ensuring the normal and stable work of the laser and prolonging the service life of the laser.

The common sealing packaging mode is that the upper cover and the cavity are directly matched to carry out parallel sealing and welding for sealing, the sealing packaging structure is simple and easy, but special sealing and welding equipment needs to be equipped for operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sealed shell and semiconductor laser, it can not need to be equipped with professional equipment, directly can realize the sealed of casing, and is sealed simple easily.

The embodiment of the utility model is realized like this:

in a first aspect, the present invention provides a seal housing, including:

the sealing device comprises a main shell, a sealing ring and a sealing ring, wherein an opening used for communicating the interior of the main shell is formed in the main shell, and a sealing groove is formed in one end, provided with the opening, of the main shell and surrounds the opening; and

the upper cover, the upper cover sets up have on the main casing body open-ended one end, be used for with the opening of the main casing body is sealed, the upper cover is close to one side of the main casing body is provided with sealed arch, sealed arch with it has sealed glue to fill between the seal groove.

In an alternative embodiment, the seal groove divides one end of the main casing, at which the opening is provided, into an inner ring end and an outer ring end;

the end part of the inner ring is abutted with the upper cover, and a gap is formed between the end part of the outer ring and the upper cover.

In an alternative embodiment, gaps are provided between the sealing protrusion and the groove bottom of the sealing groove and between the sealing protrusion and the outer groove wall of the sealing groove.

In an alternative embodiment, the sealing protrusion is attached to an inner sidewall of the sealing groove.

In an alternative embodiment, an overflow groove is provided on a side of the sealing groove close to the opening.

In an optional embodiment, an overflow protrusion is disposed on the upper cover, and the overflow protrusion is disposed corresponding to the overflow groove.

In an alternative embodiment, the cross-sectional shape of the sealing groove is rectangular.

In an optional embodiment, a positioning step is arranged on the inner wall of the end, provided with the opening, of the main shell, and a positioning boss is arranged on the upper cover and is matched with the positioning step.

In a second aspect, the present invention provides a semiconductor laser comprising a laser body and a sealed housing according to any of the previous embodiments; the laser body is arranged in the sealed shell.

In an alternative embodiment, a lead electrode is disposed on a side wall of the sealed housing, and the lead electrode is used for signal connection between the laser body and an external component.

The embodiment of the utility model provides a beneficial effect is:

the sealing bulge on the upper cover is inserted into the sealing groove on the main shell body, the sealant is extruded downwards, and the sealing between the upper cover and the main shell body is realized by the sealant, so that the sealing mode does not need professional equipment, and the realization is simple and easy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic perspective view of a sealing housing according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a main housing of a sealed housing according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of an upper cover of a sealed housing according to an embodiment of the present invention;

fig. 4 is a front view of a seal housing according to an embodiment of the present invention;

FIG. 5 is a first schematic view of the cross-sectional view A-A of FIG. 4;

FIG. 6 is a second schematic view of the cross-sectional view A-A of FIG. 4;

FIG. 7 is a third schematic view of the section A-A of FIG. 4;

FIG. 8 is a schematic structural view of the upper cover provided in FIG. 7;

fig. 9 is a schematic structural view of the main housing provided in fig. 7.

Icon: 1-covering the upper cover; 2-a main housing; 3-a lead electrode; 4-sealing groove; 5-positioning a step; 6-sealing the bulge; 7-positioning the boss; 8-sealing glue; 9-overflow protrusion; 10-an overflow trough.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to fig. 1 to 9. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The utility model provides a sealed shell, as shown in figures 1-7, include:

a main housing 2, wherein the main housing 2 is provided with an opening for communicating the interior of the main housing 2;

the upper cover 1 is arranged at one end, provided with an opening, of the main shell 2, and used for closing the opening of the main shell 2;

wherein, the end of the main shell 2 provided with the opening is provided with a sealing groove 4, and the sealing groove 4 is arranged around the opening; one side of the upper cover 1 close to the main shell 2 is provided with a sealing bulge 6, and a sealing glue 8 is filled between the sealing bulge 6 and the sealing groove 4.

Specifically, in this embodiment, the upper cover 1 and the main housing 2 are detachably connected, that is, the upper cover 1 and the main housing 2 can be separated to form two components.

In this embodiment, the upper cover 1 may also be arranged non-detachably with the main housing 2, that is, after the upper cover 1 is opened, the upper cover 1 and the main housing 2 are still connected together, specifically, the upper cover 1 and the main housing 2 are rotatably connected, and the opening and closing of the main housing 2 are realized by rotating the upper cover 1.

Specifically, in the present embodiment, there is one and only one opening in the main housing 2 for the entrance and exit of the laser body.

Specifically, in the present embodiment, the end of the main casing 2 having the opening is the upper end.

The sealing groove 4 is annularly arranged around the opening, the sealing bulge 6 is arranged on one side of the upper cover 1, and the sealing bulge 6 is in clearance fit with the sealing groove 4, so that the sealing bulge 6 can be easily inserted into the sealing groove 4.

In this embodiment, a certain amount of sealant 8 is preset at the bottom of the sealing groove 4, and after the sealing protrusion 6 is inserted into the sealing groove 4, the sealant 8 preset in the bottom plate of the sealing groove 4 is extruded, so that the sealant 8 can be completely filled between the sealing protrusion 6 and the sealing groove 4, and a sealing effect between the sealing protrusion 6 and the sealing groove 4 is ensured.

In this embodiment, the sealant 8 may be glue or gel, which only needs to be able to perform bonding sealing between the sealing protrusion 6 and the sealing groove 4, and the sealant 8 will not flow out from between the upper cover 1 and the main housing 2.

In an alternative embodiment, the seal groove 4 divides the end of the main casing 2 provided with the opening into an inner ring end and an outer ring end; the end of the inner ring is abutted against the upper cover 1, and a gap is formed between the end of the outer ring and the upper cover 1.

Such mode of setting for after upper cover 1 and main casing body 2 lock, sealed arch 6 inserts in the seal groove 4, extrudees sealed glue 8 in the seal groove 4, makes sealed glue 8 can follow the clearance and discharges, and it can to scrape off from the outer wall of sealed casing again.

By means of the arrangement, the sealant 8 after extrusion is prevented from entering the sealing shell, and further the sealant 8 is prevented from influencing the parts such as the laser body in the sealing shell.

In an alternative embodiment, there are gaps between the sealing bead 6 and the groove bottom of the sealing groove 4 and between the sealing bead 6 and the outer groove wall of the sealing groove 4.

Specifically, in this embodiment, the sealant 8 fills the gap between the sealing protrusion 6 and the bottom of the sealing groove 4, so as to seal the gap between the sealing protrusion 6 and the bottom of the sealing groove 4, thereby sealing the inner space of the sealing case.

Specifically, in this embodiment, the lateral wall that main casing body 2 upper shed one side was kept away from to seal groove 4 is the lateral wall, be provided with the clearance between the lateral wall of sealed arch 6 and seal groove 4, can be when sealed glue 8 that the tank bottom of seal groove 4 set up is more, sealed glue 8 can be discharged through the clearance between the lateral wall of sealed arch 6 and seal groove 4, and then the assembly precision between upper cover 1 and main casing body 2 has been guaranteed, also can seal between the lateral wall of sealed arch 6 and seal groove 4 simultaneously, further increased sealed effect.

In an alternative embodiment, the sealing projection 6 is attached to the inner wall of the sealing groove 4.

Specifically, the lateral wall that seal groove 4 is close to open-ended one side on the main casing body 2 is the inside wall, and the laminating setting between sealed arch 6 and the inside wall can effectually avoid sealed glue 8 to enter into sealed casing's inner space, avoids sealed glue 8 to cause the pollution to inside components and parts.

The sealing protrusion 6 is attached to the inner side wall of the sealing groove 4, and the position of the upper cover 1 can be positioned when the upper cover is mounted on the main casing 2.

When the amount of the preset sealant 8 is relatively small or the amount of the preset sealant 8 is controllable, a gap can be arranged between the sealing bulge 6 and the inner side wall, so that the sealing performance can be ensured, and the upper cover 1 can be installed more easily.

In an alternative embodiment, as shown in fig. 7 and 9, the side of the sealing groove 4 close to the opening is provided with an overflow groove 10.

Specifically, in the present embodiment, when there is a slight gap between the sealing protrusion 6 and the inner sidewall of the sealing groove 4, or when the predetermined amount of the sealing adhesive 8 is large, the sealing adhesive 8 in the sealing groove 4 may enter the sealing housing through the gap between the sealing protrusion 6 and the inner sidewall of the sealing groove 4.

In order to avoid the above situation, the overflow groove 10 is arranged on one side of the sealing groove 4 close to the opening, and when the sealant 8 overflows to the inner space of the sealing shell, the sealant can enter the inner space through the overflow groove 10.

At this moment, the overflow launder 10 can accommodate the sealant 8 discharged from the sealing groove 4, so that the sealant 8 is prevented from entering the inner space, and the safety and the service life of components in the inner space of the sealed shell are ensured.

In this embodiment, the overflow groove 10 may also be disposed on a side of the sealing groove 4 away from the opening, or the overflow groove 10 may be disposed on both the inner side and the outer side of the sealing groove 4.

When the overflow groove 10 is arranged on the outer side of the sealing groove 4, namely, on the side, far away from the opening, of the sealing groove 4, the sealant 8 is extruded by the sealing protrusion 6 and then is discharged from the sealing groove 4 to enter the overflow groove 10 on the outer side, so that the sealant can not flow out of the outer wall of the sealing shell, the cleanness is guaranteed, the cleaning process is reduced, the labor cost is reduced, and the assembly efficiency of the sealing shell is improved.

In this embodiment, the overflow groove 10 mainly serves to overflow and accommodate the sealant 8 in the sealing groove 4, and the amount of the sealant 8 accommodated in the overflow groove is relatively small, so that the cross-sectional area of the overflow groove 10 is smaller than that of the sealing groove 4, the number of grooves formed in the main housing 2 can be reduced, and the strength of the main housing 2 is further ensured.

In an alternative embodiment, as shown in fig. 7 and 8, an overflow protrusion 9 is provided on the upper cover 1, and the overflow protrusion 9 is provided corresponding to the overflow groove 10.

In this embodiment, the overflow protrusion 9 is matched with the overflow groove 10 by the arrangement of the overflow protrusion 9, and then is matched with the sealant 8 entering the overflow groove 10, so that the overflow protrusion 9 and the overflow groove 10 can be arranged in a sealing manner.

That is, by the cooperation of the overflow protrusion 9 and the overflow groove 10, the sealing performance of the sealed housing can be further increased.

It should also be noted that the cooperation of the overflow protrusion 9 with the overflow groove 10 can also increase the coupling strength between the main housing 2 and the upper cover 1.

In an alternative embodiment, the cross-sectional shape of the sealing slot 4 is rectangular.

It should be noted that the cross-sectional shape of the sealing groove 4 may be a rectangle, but it is not limited to a rectangle, and it may also be other shapes, such as a semicircle, a rectangle plus a semicircle, a trapezoid, etc., as long as the shape of the sealing groove 4 matches the shape of the sealing protrusion 6, so as to achieve the isolation and sealing between the inside and the outside of the sealing housing.

In an alternative embodiment, a positioning step 5 is provided on the inner wall of the end of the main housing 2 provided with the opening, and a positioning boss 7 is provided on the upper cover 1, and the positioning boss 7 is provided to cooperate with the positioning step 5.

In this embodiment, the positioning boss 7 is disposed in the inner ring of the annular sealing protrusion 6, the positioning step 5 is disposed at the upper end of the inner side wall of the main casing 2, and the positioning step 5 is disposed to match with the positioning boss 7, so that when the upper cover 1 is assembled on the main casing 2, the position can be accurately positioned.

In this embodiment, the positioning step 5 may not be provided inside the main casing 2, and the outer side wall of the positioning boss 7 may be attached to the inner side wall of the main casing 2, so that the position positioning function between the upper cover 1 and the main casing 2 may be realized.

In the present embodiment, the positioning boss 7 is an integral downward protrusion of the upper cover 1, that is, when the positioning step 5 is provided on the main housing 2, the positioning step 5 is an annular step, and the annular positioning step 5 is integrally matched with the positioning boss 7; when the main casing 2 is not provided with the positioning step 5, the side wall of the positioning boss 7 is integrally attached to the side wall of the main casing 2.

It should be noted that, the positioning bosses 7 may also be provided in plural, and the positioning steps 5 engaged with the positioning bosses 7 are also provided in plural, so that the engagement between the upper cover 1 and the main housing 2 has both certain position requirements and certain direction requirements, and the assembly between the upper cover 1 and the main housing 2 is more accurate.

The utility model provides a semiconductor laser, which comprises a laser body and a sealing shell in any one of the previous embodiments; the laser body is arranged in the sealed shell.

In an alternative embodiment, a lead electrode 3 is disposed on a side wall of the sealed housing, and the lead electrode 3 is used for signal connection between the laser body and other external components.

Specifically, the components and parts of setting in the sealed shell such as laser body are connected with other spare parts outside the sealed shell through lead electrode 3 for semiconductor laser can normal use.

The embodiment of the utility model provides a beneficial effect is:

the sealing bulge 6 on the upper cover 1 is inserted into the sealing groove 4 on the main shell 2, the sealant 8 is extruded downwards, and the sealing between the upper cover 1 and the main shell 2 is realized by the sealant 8, so that the sealing mode does not need professional equipment and is simple and easy to realize.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealed housing, comprising:

2. The seal housing of claim 1, wherein the seal groove divides an end of the main housing provided with the opening into an inner ring end and an outer ring end;

3. The seal housing of claim 1, wherein a gap is provided between the seal embossment and the groove bottom of the seal groove, and between the seal embossment and the outer groove wall of the seal groove.

4. The seal housing of claim 3, wherein the seal embossment abuts an inner sidewall of the seal groove.

5. The seal housing of claim 1, wherein a side of the seal groove adjacent to the opening is provided with an overflow groove.

6. The seal housing of claim 5, wherein the upper cover is provided with an overflow protrusion, and the overflow protrusion is provided corresponding to the overflow groove.

7. The seal housing of claim 1, wherein the seal groove is rectangular in cross-sectional shape.

8. The seal casing according to claim 1, wherein a positioning step is provided on an inner wall of the end of the main casing where the opening is provided, and a positioning boss is provided on the upper cover, the positioning boss being provided to cooperate with the positioning step.

9. A semiconductor laser comprising a laser body and a hermetically sealed housing according to any of claims 1 to 8; the laser body is arranged in the sealed shell.

10. A semiconductor laser as claimed in claim 9 wherein a lead electrode is provided on a side wall of the hermetically sealed housing for signal connection of the laser body to external components.