CN216052318U - Optical fiber head fixing part and optical fiber head assembly - Google Patents
Optical fiber head fixing part and optical fiber head assembly Download PDFInfo
- Publication number
- CN216052318U CN216052318U CN202121844762.1U CN202121844762U CN216052318U CN 216052318 U CN216052318 U CN 216052318U CN 202121844762 U CN202121844762 U CN 202121844762U CN 216052318 U CN216052318 U CN 216052318U
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- fiber head
- accommodating hole
- head fixing
- channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 240
- 239000000853 adhesive Substances 0.000 claims abstract description 15
- 230000001070 adhesive effect Effects 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims description 51
- 230000004308 accommodation Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
The utility model provides an optical fiber head fixing piece and an optical fiber head assembly. The optical fiber head fixing piece can be assembled on the optical fiber head body to form an optical fiber head assembly body, and an optical fiber head through channel for accommodating the optical fiber head body is arranged inside the optical fiber head fixing piece; a first accommodating hole and a second accommodating hole are respectively formed in two ends of the optical fiber head through channel in the extending direction, and the inner diameters of the first accommodating hole and the second accommodating hole are larger than that of the optical fiber head through channel; a third accommodating hole is formed in the optical fiber head fixing piece in a manner of intersecting with the through channel of the optical fiber head; the first accommodating hole, the second accommodating hole, the third accommodating hole and the optical fiber head are used for accommodating adhesives and communicated with the optical fiber head through channel. When the optical fiber head assembly is assembled, after the optical fiber head body is installed in the optical fiber head through channel, the adhesive is injected into the first to third accommodating holes, and in an assembled state, one end of the optical fiber head body, which is an inclined plane, protrudes relative to the optical fiber head fixing piece.
Description
Technical Field
The utility model relates to an optical fiber head fixing piece and an optical fiber head assembly body formed by assembling the optical fiber head fixing piece and an optical fiber head body.
Background
During assembly, such as with a lidar, position adjustment and fixing of the fiber head is required. In order to improve the efficiency and accuracy of the assembly work, it is considered to perform the work by using a robot with a jig. However, the optical fiber head body is generally cylindrical and small in size, and is not easily gripped by a jig. Moreover, there are also cases where it is not easy to judge by naked eyes whether or not the mounting position is correct.
In the prior art, the optical fiber head body is also mounted in the fixing block. However, the fixing block has the problems of complex structure, unreliable fixation of the optical fiber head body in the fixing block and the like.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned problems of the prior art, an object of the present invention is to provide a fiber tip holder which has a simple structure, can firmly hold a fiber tip body, and is easy to clamp. Still another object of the present invention is to provide an assembly body having a simple and reliable assembly process and high assembly accuracy.
In order to achieve the purpose, the utility model adopts the following technical scheme.
One aspect of the present invention relates to an optical fiber head holder capable of being assembled to an optical fiber head body, wherein an optical fiber head through channel is provided inside the optical fiber head holder as an accommodation space for accommodating the optical fiber head body; a first accommodating hole and a second accommodating hole are respectively formed in two ends of the optical fiber head through channel in the extending direction, and the inner diameters of the first accommodating hole and the second accommodating hole are larger than that of the optical fiber head through channel; a third accommodating hole is formed in the optical fiber head fixing piece and intersected with the through channel of the optical fiber head; the first accommodating hole, the second accommodating hole and the third accommodating hole are used for accommodating adhesives and communicated with the optical fiber head through channel.
Optionally, the optical fiber head mounting includes the fixed shell of optical fiber head and covers the fixed lid of optical fiber head of the one end of the fixed shell of optical fiber head, the optical fiber head link up the passageway form in the inside of the fixed shell of optical fiber head, the third accommodation hole form in the fixed lid of optical fiber head, the fixed shell of optical fiber head is including separating the relative both sides wall of optical fiber head link up the passageway and will the diapire that the both sides wall is connected integratively, with the relative one end of diapire is open end the both sides wall open end side's outside is equipped with the orientation the outside open-ended concave part of the fixed shell of optical fiber head the relative both ends border portion each other of the fixed lid of optical fiber head is equipped with the bellying, works as the fixed lid of optical fiber head in during the open end of the fixed shell of optical fiber head, the bellying with the concave part block.
Optionally, the optical fiber head fixing member is further provided with a fourth accommodating hole communicated with the optical fiber head through channel, and the third accommodating hole and the fourth accommodating hole are coaxially arranged and perpendicular to the optical fiber head through channel.
Optionally, a chamfer is provided at an end edge of the fiber tip holder.
Optionally, the optical fiber head fixing shell is further provided with a fourth accommodating hole communicated with the optical fiber head through channel, and the fourth accommodating hole is coaxially arranged with the third accommodating hole and perpendicular to the optical fiber head through channel.
Optionally, a chamfer is provided at an end edge of the optical fiber head fixing shell.
Another aspect of the present invention relates to an optical fiber head assembly, which includes an optical fiber head body, the optical fiber head holder described above, and an adhesive for fixing the optical fiber head body to the optical fiber head holder.
Optionally, the optical fiber head body has one end with an inclined end face and the other end connected with the optical fiber lead, and the end with the inclined end face of the optical fiber head body protrudes relative to the optical fiber head fixing member.
Optionally, the inclined direction of the inclined plane of the one end of the optical fiber head body is consistent with the chamfer direction of the chamfer part arranged at the one end edge of the optical fiber head fixing piece.
Optionally, the adhesive is located in each receiving hole of the fiber tip holder.
Effect of the utility model
According to the utility model, the optical fiber head fixing piece which has a simple structure, can firmly fix the optical fiber head body and is easy to clamp can be provided; and the optical fiber head assembly with simple and reliable assembly process and high assembly precision can be provided.
Drawings
Fig. 1 is an exploded perspective view showing an assembled state of a fiber tip holder and a fiber tip body according to an embodiment of the present invention.
Fig. 2 is a perspective view showing an optical fiber head assembly in which the optical fiber head holder and the optical fiber head body are assembled.
Fig. 3 is a cross-sectional view showing the fiber optic head assembly.
Fig. 4 is an exploded perspective view showing an assembled state of a fiber optic head holder and a fiber optic head body according to another embodiment of the present invention.
Fig. 5 is a perspective view showing an optical fiber head assembly in which the optical fiber head holder and the optical fiber head body are assembled.
Fig. 6 is a cross-sectional view showing the fiber optic head assembly.
Description of the reference numerals
1-optical fiber head fixing piece; 2-the optical fiber head body; 3-optical fiber lead; 4-a fiber optic cabinet; 15-chamfering; 21-optical fiber head fixing cover; 22-optical fiber head fixing shell; 21 a-a bump; 22 b-a recess; 11, 12, 13, 14, 31, 32, 33, 34-receiving holes.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings. It will be appreciated by those skilled in the art that the specific structures, dimensions, and proportions shown in the drawings and detailed description herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is to be limited only by the appended claims.
In, for example, laser radars and the like, for example, a laser is connected to a laser-emitting optical element using an optical fiber, or a fiber laser is used. As shown in fig. 1, the laser (not shown) is mounted, for example, in a fiber optic box 4, which fiber optic box 4 is, for example, fixedly mounted in the housing of the lidar. A plurality of optical fiber leads 3 are led out from the optical fiber box 4, and an optical fiber head body 2 is respectively arranged at the end part of each optical fiber lead 3. Light such as laser light is led out from the fiber head body 2.
As shown in fig. 1, 3, and 6, the optical fiber head body 2 is, for example, cylindrical, and has one end (light emitting end) having an end face with an inclined surface (the light emitting angle of the optical fiber is perpendicular to the inclined surface and does not coincide with the axis of the cylinder) and the other end connected to the optical fiber lead 3.
The optical fiber head fixing piece 1 is used for fixing the optical fiber head body 2. The structure of the fiber tip holder 1 will be described below.
An optical fiber head through channel which is used as an accommodating space for accommodating the optical fiber head body 2 is arranged in the optical fiber head fixing piece 1. For example, the inner diameter of the fiber tip through passage is substantially equal to the outer diameter of the fiber tip body 2.
A first accommodating hole 13 and a second accommodating hole 14 are respectively formed at both ends of the fiber stub through passage in the extending direction, and the inner diameters of the first accommodating hole 13 and the second accommodating hole 14 are larger than the inner diameter of the fiber stub through passage. The fiber stub fixing member 1 is further provided with a third receiving hole 11 and a fourth receiving hole 12, and the third receiving hole 11 and the fourth receiving hole 12 are provided so as to intersect the fiber stub through passage. For example, the third receiving hole 11 and the fourth receiving hole 12 are provided coaxially with each other and perpendicularly to the fiber stub through passage.
The first accommodating hole, the second accommodating hole, the third accommodating hole, the fourth accommodating hole and the fourth accommodating hole are also called glue dispensing holes, are used for accommodating adhesives and are communicated with the optical fiber head through channel. In a state where the fiber tip body 2 is attached to the fiber tip holder 1, the movement (including the movement in the axial direction, the movement in the radial direction, and the rotation) of the fiber tip body 2 in the fiber tip through passage can be restricted by the adhesive injected into the first to fourth accommodation holes. Of course, even if any one of the third accommodation hole 11 and the fourth accommodation hole 12 is omitted, the effect of restricting the movement can be achieved.
In addition, from the viewpoint of more firmly fixing the fiber head body 2 and further improving the light-emitting stability, it is preferable that the volume of the accommodation hole (the second accommodation hole 14 in the present embodiment) on the light-emitting end side of the fiber head body 2 is larger than the volume of the accommodation hole (the first accommodation hole 13 in the present embodiment) on the other end side to accommodate more adhesive and provide a larger adhesive fixing force.
The outer shape of the optical fiber head holder 1 may be any shape as long as the clamp can clamp the optical fiber head holder, but the outer shape of the optical fiber head holder 1 is preferably a rectangular parallelepiped shape, and more preferably a square parallelepiped shape, in terms of facilitating the clamp to firmly clamp and reliably adjust the directional position, facilitating the attachment to other components (e.g., laser emitting optical elements), and accommodating an appropriate amount of adhesive.
The optical fiber head holder 1 may be an integrated structure or a structure in which separate members are combined. The following description will be made for each of the two structures.
As shown in fig. 1 to 3, the optical fiber head fixing block 1 is an integrated structure. When the optical fiber tip body 2 and such an integral optical fiber tip holder 1 are assembled together, for example, first, the optical fiber tip body 2 is inserted into the optical fiber tip through-passage from one end side (for example, the right side in fig. 3) in the extending direction of the optical fiber tip through-passage, and one end (light exit end) having an inclined surface in the optical fiber tip body 2 is protruded from the optical fiber tip holder 1. In addition, in the present embodiment, the end of the optical fiber head body 2 connected to the optical fiber lead 3 also protrudes out of the optical fiber head fixing block 1. Then, an adhesive is injected into the first to fourth accommodation holes to firmly fix the optical fiber head body 2 to the optical fiber head fixing block 1. Therefore, an assembly of the optical fiber head fixing block 1 and the optical fiber head body 2 is formed. In the assembly, as shown in fig. 2 and 3, the optical fiber head body 2 is fixedly inserted into the optical fiber head fixing block 1 with respect to the optical fiber head fixing block 1 in a state where at least one end surface of the optical fiber head body 2, which is an inclined surface, protrudes with respect to the optical fiber head fixing block 1.
Such an assembly can be easily held and adjusted in direction and position by a jig.
In addition, a chamfer 15 is provided at one end edge of the integrated fiber tip holder 1. In the example shown in fig. 2, the chamfered portion 15 may be formed by chamfering the entire edge. When the optical fiber head body 2 and the optical fiber head fixing block 1 are assembled, the inclined direction of the inclined surface of the end face of the optical fiber head body 2, which is the inclined surface, of the end (i.e., the light emitting end) is made to be the same as the chamfering direction (inclined surface inclination direction) of the chamfering portion 15. From the viewpoint of easy observation, it is preferable that the chamfered portion 15 is located on the same side (left side in fig. 3) as the light emitting end of the optical fiber head main body 2 as shown in fig. 3. By providing the chamfered portion 15, the attachment direction of the fiber head fixing member 1 can be easily recognized during the assembly work. Since the chamfer 15 coincides with the inclined direction of the inclined surface of the optical fiber head body 2, the optical fiber head body can be correctly assembled in a simple manner. Therefore, the assembly easiness and the assembly operation time of the optical fiber head body 2, the optical fiber head fixing piece 1 and the optical fiber head assembly and the optical fiber box are improved.
As shown in fig. 4 to 6, the optical fiber head fixing block 1 is a split structure. Hereinafter, the split optical fiber head fixing block 1 will be described in detail, and the same or common structure as the integrated optical fiber head fixing block 1 will not be described again.
As shown in fig. 4 to 6, the optical fiber head holder 1 includes an optical fiber head holding case 22 and an optical fiber head holding cover 21 covering one end of the optical fiber head holding case 22. The fiber stub through passage is formed inside the fiber stub fixing housing 22, and the third accommodation hole 31 is formed in the fiber stub fixing cover 21. The optical fiber head fixing case 22 includes two side walls facing each other with the optical fiber head through passage interposed therebetween and a bottom wall integrally connecting the two side walls, one end facing the bottom wall is an open end, and a recess 22b opened to the outside of the optical fiber head fixing case 21 is provided outside the open end side of the two side walls; the optical fiber head fixing cover 21 has projections 21a at opposite end edges thereof, and the projections 21a engage with the recesses 22b when the optical fiber head fixing cover 21 covers the open end of the optical fiber head fixing case 22. The optical fiber head fixing shell and the optical fiber head fixing cover can be easily and accurately positioned and assembled through the clamping of the protruding part and the concave part.
Although fig. 4 to 6 show a structure in which the optical fiber head fixing block 1 is vertically divided, the division method is not limited to this, and, for example, a structure in which the optical fiber head fixing block is horizontally divided may be employed. However, the vertically split structure is easy to assemble. The optical fiber head fixing block 1, which is formed by combining the optical fiber head fixing housing and the optical fiber head fixing cover, is preferably rectangular parallelepiped in shape, and more preferably rectangular parallelepiped in shape.
When the optical fiber head body 2 and the split optical fiber head holder 1 are assembled together, for example, first, the optical fiber head body 2 is inserted into the optical fiber head through passage from the open end (e.g., the upper open end shown in fig. 4 to 6) of the optical fiber head holder housing 22, and the end (light exit end) of the optical fiber head body 2 having the inclined surface is protruded from the optical fiber head holder housing 22, and the optical fiber head holder cover 21 is covered to engage the protrusion 21a with the recess 22 b. In addition, in the present embodiment, the end of the optical fiber head body 2 connected to the optical fiber lead 3 also protrudes from the optical fiber head fixing case 22. Then, an adhesive is injected into the first to third accommodation holes (or the first to fourth accommodation holes) to firmly fix the fiber head body 2 to the fiber head fixing block 1 (the fiber head fixing cover 21 and the fiber head fixing housing 22). Thus, an assembly of the optical fiber head fixing block 1 (the optical fiber head fixing cover 21 and the optical fiber head fixing shell 22) and the optical fiber head body 2 is formed. In the assembly, as shown in fig. 5 and 6, the optical fiber head body 2 is fixedly inserted into the optical fiber head fixing block 1 with respect to the optical fiber head fixing block 1 in a state where at least one end surface of the optical fiber head body 2, which is an inclined surface, protrudes with respect to the optical fiber head fixing block 1.
Such an assembly can be easily held and adjusted in direction and position by a jig.
In addition, a chamfered portion 15 is provided at an end edge of the split type optical fiber head holder 1, for example, an end edge of the optical fiber head holder case 22. In the example shown in fig. 5, the chamfered portion 15 may be formed by chamfering the entire edge. When the optical fiber head body 2 and the optical fiber head fixing block 1 are assembled, the inclined direction of the inclined surface of the end face of the optical fiber head body 2, which is the inclined surface, of the end (i.e., the light emitting end) is made to be the same as the chamfering direction (inclined surface inclination direction) of the chamfering portion 15. From the viewpoint of easy observation, it is preferable that the chamfered portion 15 is located on the same side (left side in fig. 6) as the light emitting end of the optical fiber head body 2 as shown in fig. 6. By providing the chamfered portion 15, the location of the optical fiber head fixing housing and the optical fiber head fixing cover can be easily identified during the assembly operation; the installation direction of the whole optical fiber head fixing piece can be easily distinguished; the fiber optic head body can be correctly assembled in a simple manner. Therefore, the assembly easiness and the assembly operation time of the optical fiber head body 2, the optical fiber head fixing piece 1 and the optical fiber head assembly and the optical fiber box are improved.
Compare with foretell integral type optical fiber head mounting 1, when assembling split type optical fiber head mounting 1 and optical fiber head body 2, owing to can avoid the light-emitting end of optical fiber head main part and the contact of optical fiber head mounting, collision etc. consequently the protection to the optical fiber head of being more convenient for, assembly process is easier moreover, maneuverability is stronger.
According to the present invention, the optical fiber head body and the optical fiber head fixing member can be easily assembled, the position and angle of the optical fiber head body can be easily adjusted by clamping the optical fiber head body by the clamp, the optical fiber head body can be easily and accurately mounted and positioned with respect to the optical element for light emission, and the assembly stability and accuracy can be improved.
The embodiments of the present invention have been described above by way of example. Those skilled in the art will appreciate that various modifications, combinations, and omissions may be made in the present invention without departing from the spirit thereof.
Claims (10)
1. An optical fiber head fixing piece which can be assembled on an optical fiber head body and is characterized in that,
an optical fiber head through channel which is used as an accommodating space for accommodating the optical fiber head body is arranged in the optical fiber head fixing piece;
a first accommodating hole and a second accommodating hole are respectively formed in two ends of the optical fiber head through channel in the extending direction, and the inner diameters of the first accommodating hole and the second accommodating hole are larger than that of the optical fiber head through channel;
a third accommodating hole is formed in the optical fiber head fixing piece and intersected with the through channel of the optical fiber head;
the first accommodating hole, the second accommodating hole and the third accommodating hole are used for accommodating adhesives and communicated with the optical fiber head through channel.
2. The fiber optic head mount of claim 1,
the optical fiber head fixing piece comprises an optical fiber head fixing shell and an optical fiber head fixing cover covering one end of the optical fiber head fixing shell,
the optical fiber head through channel is formed inside the optical fiber head fixing shell, the third accommodating hole is formed in the optical fiber head fixing cover,
the optical fiber head fixing case includes two side walls facing each other with the optical fiber head through passage interposed therebetween and a bottom wall integrally connecting the two side walls, one end of the optical fiber head fixing case opposite to the bottom wall is an open end, a recess opened toward an outside of the optical fiber head fixing case is provided outside the open end side of the two side walls,
the optical fiber head fixing cover is characterized in that protruding parts are arranged at two opposite end edge parts of the optical fiber head fixing cover, and when the optical fiber head fixing cover covers the opening end of the optical fiber head fixing shell, the protruding parts are clamped with the concave parts.
3. The fiber optic head mount of claim 1 or 2,
the optical fiber head fixing piece is further provided with a fourth accommodating hole communicated with the optical fiber head through channel, and the third accommodating hole and the fourth accommodating hole are coaxially arranged and are perpendicular to the optical fiber head through channel.
4. The fiber optic head mount of claim 1,
and a chamfer part is arranged at one end edge of the optical fiber head fixing part.
5. The fiber optic head mount of claim 2,
the optical fiber head fixing shell is further provided with a fourth accommodating hole communicated with the optical fiber head through channel, and the fourth accommodating hole and the third accommodating hole are coaxially arranged and are perpendicular to the optical fiber head through channel.
6. The fiber optic head mount of claim 2,
and a chamfer part is arranged at one end edge of the optical fiber head fixing shell.
7. An optical fiber tip assembly comprising an optical fiber tip body, the optical fiber tip holder according to any one of claims 1 to 6, and an adhesive for fixing the optical fiber tip body to the optical fiber tip holder.
8. A fiber optic head assembly according to claim 7, wherein the fiber optic head body has one end with an end face that is beveled and another end that is connected to a fiber optic lead,
the end face of the optical fiber head body is an inclined face, and one end of the optical fiber head body protrudes relative to the optical fiber head fixing piece.
9. A fiber optic head assembly as claimed in claim 8,
the inclined direction of the inclined plane of one end of the optical fiber head body is consistent with the chamfer direction of the chamfer part arranged at one end edge of the optical fiber head fixing piece.
10. A fiber optic head assembly according to claim 7,
the adhesive is located in each receiving hole of the fiber tip holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121844762.1U CN216052318U (en) | 2021-08-09 | 2021-08-09 | Optical fiber head fixing part and optical fiber head assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121844762.1U CN216052318U (en) | 2021-08-09 | 2021-08-09 | Optical fiber head fixing part and optical fiber head assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216052318U true CN216052318U (en) | 2022-03-15 |
Family
ID=80557613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121844762.1U Active CN216052318U (en) | 2021-08-09 | 2021-08-09 | Optical fiber head fixing part and optical fiber head assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216052318U (en) |
-
2021
- 2021-08-09 CN CN202121844762.1U patent/CN216052318U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20220410798A1 (en) | Light-emitting device | |
| US7477810B2 (en) | Optical semiconductor module | |
| JP2005257078A (en) | Protective device, particularly optical grid | |
| CN100458486C (en) | Optical part holding unit | |
| JP4710667B2 (en) | Capacitor unit | |
| WO2014080694A1 (en) | Optical connector and optical transmission module | |
| US20110248135A1 (en) | Fixing Bracket, Fixing Method of Fixing Bracket and Fixing Structure of Fixing Bracket | |
| US7090412B2 (en) | Optical module | |
| CN216052318U (en) | Optical fiber head fixing part and optical fiber head assembly | |
| US7241059B2 (en) | Optical assembly with a sleeve made of amorphous metal | |
| CN109475880B (en) | Rotor mounting structure and centrifugal separator | |
| JP4755872B2 (en) | Portable storage device | |
| US20030068137A1 (en) | Ferrule for an array of optical fibers and connector structure including this ferrule | |
| JP2020535488A (en) | Optical connectors, optical modules and clip members | |
| JP6605920B2 (en) | Connector holder | |
| US20230296849A1 (en) | Ferrule, optical connector, and optical connector module | |
| JP2935849B2 (en) | Optical connector | |
| CN220481781U (en) | Tool bit structure and hair trimmer | |
| JP3856805B2 (en) | Optical fiber fixing jig | |
| CN220709475U (en) | Beam homogenizing assembly and laser emission device | |
| US20230266540A1 (en) | Ferrule, optical connector, and optical connector module | |
| JP3602399B2 (en) | Optical connector | |
| JP3211743B2 (en) | Connection structure between ferrule and optical fiber cord | |
| KR20210012237A (en) | Battery case | |
| JP2007114673A (en) | Optical module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |