Passive alignment connection structure
By using a passive alignment connection structure, the alignment part of the connector is directly aligned with the fiber array module, which solves the problem of external mold positioning required in the existing technology and realizes efficient and low-cost fiber array connection.
Patent Information
- Application Number
- CN202411142485.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2024-07-31
- Filing Date
- 2024-08-20
- Publication Date
- 2026-02-03
AI Technical Summary
Existing fiber optic array connection technologies require external mold positioning and gluing for alignment and connection, resulting in high costs and the need for dedicated molds for each product model, which increases production costs.
The passive alignment connection structure is adopted. By setting alignment parts on two connectors, the fiber array module is directly aligned and connected without the need for external molds. The alignment and positioning are achieved by using the connectors of the alignment parts.
It improved connection yield, reduced production costs, and simplified the assembly process of fiber array modules.
Smart Images
Figure CN121454699A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present invention relates to the technical field of optical fiber connection, and in particular to a passive alignment connection structure for connecting optical fiber array modules. BACKGROUND
[0002] In the current optical fiber array connection technology, the internal optical fibers of two optical fiber array modules must be aligned for connection to avoid the discontinuity of the light beams during travel. In order to align the optical fibers in the two optical fiber array modules, external molds must be used to position the two optical fiber array modules during assembly, and then the two optical fiber array modules are combined by, for example, gluing, to complete the alignment operation and connection. However, the cost of molds is very high, and the structure of each model of product is different, resulting in the need for different molds for each model of product, which is very expensive. SUMMARY
[0003] The purpose of the present invention is to provide a passive alignment connection structure, in which two adapters each having an alignment portion are used to connect two optical fiber array modules, and the alignment connection is performed by the alignment portions of the adapters, so that the connection can be directly performed during assembly without the aid of external molds, thereby improving the yield and reducing the cost.
[0004] According to the above purpose, the present invention provides a passive alignment connection structure, which includes: a first adapter having a first frame, a stop frame portion, and a first alignment portion, the first frame defining a first accommodation space inside, the stop frame portion being arranged in the first frame and separating the first accommodation space inside the first frame into a first accommodation cavity and a second accommodation cavity, the first alignment portion being arranged in a first upper plate portion of the first frame and adjacent to the first accommodation cavity; and a second adapter having a second frame and a second alignment portion, the second frame defining a second accommodation space inside, the second accommodation space being arranged corresponding to the first accommodation cavity of the first accommodation space, the second alignment portion being arranged in a second upper plate portion of the second frame and corresponding to the first alignment portion, the second alignment portion and the first alignment portion being combined to complete the alignment connection.
[0005] In some embodiments, the second accommodation cavity of the first adapter is configured to allow a first optical fiber array module to pass through and be fixed, and abut against the stop frame portion and be fixed by gluing.
[0006] In some embodiments, a bottom of the first optical fiber array module protrudes a first protruding rib, an inner surface of a first lower plate portion of the first frame corresponding to the second accommodation cavity forms a first recess, and the first protruding rib is aligned and positioned corresponding to the first recess.
[0007] In some embodiments, the second accommodating space of the second adapter is configured to pass through a second fiber array module and is fixedly combined by gluing.
[0008] In some embodiments, a front exposed part of the second fiber array module is exposed outside the second adapter and is fixedly combined in the first accommodating cavity of the first adapter and abuts against the stop frame part.
[0009] In some embodiments, an inner surface of a second lower plate part of the second frame body forms a second groove, an inner surface of the first lower plate part of the first frame body corresponding to the first accommodating cavity forms a third groove, a bottom of the second fiber array module is provided with a second protruding rib, and the second protruding rib is positioned in alignment with the second groove and the third groove.
[0010] In some embodiments, two side edges of the first groove are respectively a first inclined surface, the first inclined surface is arranged to be inclined towards the center of the first frame body and downwards, and two side edges of the third groove are respectively a third inclined surface, the third inclined surface is arranged to be inclined towards the center of the first frame body and downwards.
[0011] In some embodiments, two side edges of the second groove are respectively a second inclined surface, the second inclined surface is arranged to be inclined towards the center of the second frame body and downwards.
[0012] In some embodiments, the first alignment part is two blind holes arranged to be spaced apart from each other, the second alignment part is two guide columns arranged to be spaced apart from each other, and the two guide columns pass through the two blind holes in corresponding alignment.
[0013] In some embodiments, the two guide columns are made of metal material.
[0014] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments listed below are described in detail in conjunction with the drawings. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a partial exploded perspective view of the passive alignment connection structure of the present application.
[0016] Figure 2 It is a sectional view of the passive alignment connection structure of the present application.
[0017] Figure 3 It is a partial exploded perspective view of the passive alignment connection structure combined with the fiber array module of the present application.
[0018] Figure 4 It is a side view of the passive alignment connection structure combined with the fiber array module of the present application.
[0019] Figure 5A cross-sectional view of the passive alignment connection structure combined with the fiber array module.
[0020] Explanation of reference numerals:
[0021] 100: passive alignment connection structure; 110: first connector; 111: first frame; 1111: first upper plate portion; 1112: first lower plate portion; 112: stop frame portion; 113: first alignment portion; 114: first accommodation space; 1141: first accommodation cavity; 1142: second accommodation cavity; 115: first groove; 1151: first inclined surface; 116: third groove; 1161: third inclined surface; 120: second connector; 121: second frame; 1211: second upper plate portion; 1212: second lower plate portion; 122: second alignment portion; 123: second accommodation space; 124: second groove; 1241: second inclined surface; 200: first fiber array module; 210: first convex rib; 211: fourth inclined surface; 300: second fiber array module; 301: front exposed portion; 310: second convex rib; 311: fifth inclined surface. DETAILED DESCRIPTION
[0022] The advantages, features and technical methods achieved by the present application will be described in more detail and more easily understood with reference to exemplary embodiments and the accompanying drawings, and the present application can be implemented in different forms, so it should not be understood as being limited to the embodiments described herein. On the contrary, the embodiments provided by those skilled in the art will make the present disclosure more thorough and comprehensive, and fully convey the scope of the present application, which will be defined only by the appended claims.
[0023] In addition, the terms "comprise" and / or "comprising" refer to the presence of the stated features, regions, integers, steps, operations, components, and / or components, but do not exclude the presence or addition of one or more other features, regions, integers, steps, operations, components, components, and / or combinations thereof.
[0024] For the convenience of understanding the content of the present application and the effects that can be achieved, the specific embodiments listed in conjunction with the drawings are described in detail as follows.
[0025] Figure 1 A partial exploded perspective view of the passive alignment connection structure of the present application. Figure 2 A cross-sectional view of the passive alignment connection structure of the present application. Figure 3 A partial exploded perspective view of the passive alignment connection structure combined with the fiber array module of the present application. Figure 4 A side view of the passive alignment connection structure combined with the fiber array module of the present application. Figure 5 A cross-sectional view of the passive alignment connection structure combined with the fiber array module of the present application.
[0026] Reference is made to Figures 1 to 5 The passive alignment connection structure 100 of the present application comprises a first connector 110 and a second connector 120. In some embodiments, the first connector 110 is configured to connect and secure a first fiber array module 200, and the second connector 120 is configured to connect and secure a second fiber array module 300.
[0027] The first connector 110 has a first frame 111, a stop frame 112, and a first alignment portion 113. The first frame 111 defines a first receiving space 114 inside. The stop frame 112 is disposed inside the first frame 111 and separates the first receiving space 114 inside the first frame 111 into a first receiving cavity 1141 and a second receiving cavity 1142. The first alignment portion 113 is disposed inside a first upper plate portion 1111 of the first frame 111 and is disposed adjacent to the first receiving cavity 1141.
[0028] In some embodiments, the second receiving cavity 1142 of the first connector 110 is configured to allow the first fiber array module 200 to be inserted and secured against the stop frame 112, and can be bonded to the stop frame 112. In some embodiments, a bottom portion of the first fiber array module 200 has a first protruding rib 210 protruding therefrom. In some embodiments, the two side edges of the first protruding rib 210 each has a fourth inclined surface 211.
[0029] Correspondingly, in some embodiments, the first frame 111 has a first groove 115 formed on an inner surface of a first lower plate portion 1112 corresponding to the second receiving cavity 1142, and the first protruding rib 210 is aligned and positioned corresponding to the first groove 115; and the first lower plate portion 1112 of the first frame 111 has a third groove 116 formed on an inner surface corresponding to the first receiving cavity 1141. In some embodiments, the two side edges of the first groove 115 each has a first inclined surface 1151, and the two side edges of the third groove 116 each has a third inclined surface 1161. The first inclined surface 1151 is disposed inclined towards the center of the first frame 111 and downwards, and the third inclined surface 1161 is disposed inclined towards the center of the first frame 111 and downwards. In some embodiments, the central axis of the first groove 115 and the central axis of the third groove 116 overlap each other so that the first groove 115 and the third groove 116 are aligned with each other. Furthermore, each first inclined surface 1151 of the first groove 115 and each fourth inclined surface 211 of the first protruding rib 210 are aligned with each other.
[0030] The second adapter 120 has a second frame 121 and a second alignment portion 122. The second frame 121 defines a second accommodating space 123 inside. The second accommodating space 123 is arranged corresponding to the first accommodating cavity 1141 of the first accommodating space 114 and is communicated. The second alignment portion 122 is arranged in a second upper plate portion 1211 of the second frame 121 and is arranged corresponding to the first alignment portion 113. The second alignment portion 122 is combined with the first alignment portion 113 to complete the alignment connection. In some embodiments, the first alignment portion 113 can be two blind holes arranged at intervals, and the second alignment portion 122 can be two guide columns arranged at intervals, but not limited to this. In some embodiments, the second alignment portion 122 which is two guide columns is aligned and positioned into the first alignment portion 113 which is two blind holes to achieve the alignment connection. In some embodiments, the two guide columns are made of metal material.
[0031] In some embodiments, the second accommodating space 123 of the second adapter 120 is configured to pass through the second fiber array module 300 and is combined and fixed by gluing. In some embodiments, a bottom of the second fiber array module 300 protrudes a second protruding rib 310. In some embodiments, an inner surface of a second lower plate portion 1212 of the second frame 121 forms a second groove 124. In some embodiments, two side edges of the second groove 124 are respectively a second inclined surface 1241, and the second inclined surface 1241 is arranged inclinedly towards the center of the second frame 121 and downwards. In some embodiments, the second protruding rib 310 is aligned and positioned corresponding to the second groove 124 and the third groove 116. In some embodiments, two side edges of the second protruding rib 310 respectively form a fifth inclined surface 311, and the fifth inclined surface 311 is arranged inclinedly towards the center of the second protruding rib 310 and downwards.
[0032] In some embodiments, a front exposed portion 301 of the second fiber array module 300 is exposed outside the second adapter 120 and is fixedly passed through the first accommodating cavity 1141 of the first adapter 110 and abuts against the stopping frame portion 112.
[0033] Therefore, as described above, the passive alignment connection structure 100 can connect two fiber array modules (i.e., the first fiber array module 200 and the second fiber array module 300) through two adapters (i.e., the first adapter 110 and the second adapter 120) each having an alignment portion (i.e., the first alignment portion 113 and the second alignment portion 122), and the alignment connection is achieved through the alignment portions of the adapters. In the assembly, the connection can be directly performed without the aid of external molds, so as to improve the yield and reduce the cost.
[0034] As described above, the present application is different from the prior art in purpose, means and effect, and is first invented and practical, and meets the patent requirements of the invention.
[0035] The above described is the preferred embodiment of the present application, it should be pointed out that for the ordinary person in the art, without departing from the principles described in the present application can also be made several improvements and refinements, these improvements and refinements are also within the scope of the present application.
Claims
1. A passive alignment connection structure, characterized in that, include: A first docking device includes a first frame, a stop frame, and a first alignment portion. The first frame defines a first receiving space. The stop frame is disposed within the first frame and divides the first receiving space within the first frame into a first receiving cavity and a second receiving cavity. The first alignment portion is disposed within a first upper plate portion of the first frame and adjacent to the first receiving cavity. A second docking device has a second frame and a second alignment part. The second frame defines a second receiving space. The second receiving space is disposed in the first receiving cavity of the first receiving space. The second alignment part is disposed in a second upper plate of the second frame and is disposed in the first alignment part. The second alignment part and the first alignment part are combined to complete the alignment connection.
2. The passive alignment connection structure according to claim 1, characterized in that, The second receiving cavity of the first docking device is configured to allow a first fiber array module to pass through and be fixed, and abuts against the stop frame portion and is glued together and fixed.
3. The passive alignment connection structure according to claim 2, characterized in that, The first fiber array module has a first protruding rib at one bottom, and the first frame has a first groove on the inner surface of a first lower plate corresponding to the second accommodating cavity. The first protruding rib is aligned and positioned with the first groove.
4. The passive alignment connection structure according to claim 3, characterized in that, The second receiving space of the second connector is configured to allow a second fiber array module to pass through and is fixed by adhesive bonding.
5. The passive alignment connection structure according to claim 4, characterized in that, A front exposed portion of the second fiber array module is exposed outside the second docking device and is fixed inside the first receiving cavity of the first docking device, and abuts against the stop frame portion.
6. The passive alignment connection structure according to claim 5, characterized in that, A second groove is formed on an inner surface of a second lower plate portion of the second frame, and a third groove is formed on an inner surface of the first lower plate portion of the first frame corresponding to the first accommodating cavity. A second rib is protruding from a bottom of the second fiber array module, and the second rib is aligned and positioned with the second groove and the third groove.
7. The passive alignment connection structure according to claim 6, characterized in that, The first groove has a first inclined surface on each side, which is inclined downward toward the center of the first frame. The third groove has a third inclined surface on each side, which is inclined downward toward the center of the first frame.
8. The passive alignment connection structure according to claim 7, characterized in that, The two sides of the second groove are each a second inclined surface, which are inclined downwards towards the center of the second frame.
9. The passive alignment connection structure according to claim 1, characterized in that, The first alignment part consists of two blind holes spaced apart from each other, and the second alignment part consists of two guide posts spaced apart from each other, with the two guide posts correspondingly aligned and inserted into the two blind holes.
10. The passive alignment connection structure according to claim 9, characterized in that, The two guide posts are made of metal.