Structure for optimizing EMC performance of optical module
By adding wave absorbing materials and barrier metal shrapnel to the optical module structure, combined with the sealed design of the base and upper cover, the problem of EMC/EMI performance degradation caused by the optical port gap is solved, and stronger interference resistance and performance optimization are achieved.
Patent Information
- Application Number
- CN202420292215.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-09
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-02-09
AI Technical Summary
The existing 10G ER/ZR optical module structural parts have gaps in the optical port due to dimensional tolerances, which affects the EMC/EMI performance.
An optimized optical module structure is designed, using a combination of cover body, cylindrical devices, wave absorber and elastic members, by adding barrier metal shrapnel and wave absorber material at the optical port position, and adding in the fit between the base and the upper cover Shielding sealing, absorbing interfering signals using absorbing materials to optimize EMC/EMI performance.
It effectively enhances the product's resistance to external interference, ensures the normal operation of performance indicators, and avoids the adverse effects of internal interference on other products, significantly optimizing EMC performance.
Smart Images
Figure CN222213017U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical module devices, in particular to a structure for optimizing EMC performance of an optical module. Background Art
[0002] At present, the conventional 10G ER / ZR structural parts adopt the method of matching the base and the upper cover up and down to assemble the optical port part. Due to the size tolerance of the structural parts themselves, there will be a certain gap in the optical port part. Due to the existence of the gap, there will be certain problems with the EMC / EMI performance of the product. Therefore, further improvements are needed in the structural design, and this solution is launched under this background. Utility Model Content
[0003] Based on the above description, the utility model provides a structure for optimizing the EMC performance of an optical module to solve the problem in the prior art that gaps are generated in the device, resulting in degradation of product performance.
[0004] The technical solution of the utility model to solve the above technical problems is as follows:
[0005] A structure for optimizing EMC performance of an optical module, comprising:
[0006] Cover body;
[0007] A columnar component is laid in the cover body and is provided with an annular retaining ring;
[0008] The wave absorbing member is sleeved on the columnar member and fixedly connected with the inner wall of the cover;
[0009] The elastic member is sleeved between the wave absorbing member and the annular retaining ring, and is clamped and fixed with the inner wall of the cover.
[0010] On the basis of the above technical solution, the present invention can also be improved as follows.
[0011] Furthermore, a fixing piece is arranged in the cover body, a slot is provided in the fixing piece, the wave absorbing piece and the elastic piece are embedded in the slot, and the wave absorbing piece and the elastic piece are respectively in contact with inner walls on both sides of the slot.
[0012] Furthermore, arc-shaped grooves corresponding to the columnar components are formed on both sides of the fixing member, and through holes corresponding to the columnar components are formed on the absorbing member and the elastic member.
[0013] Furthermore, the elastic member includes a main body portion and a bent portion which are integrally connected, the bent portions are respectively arranged on both sides of the main body portion, and the bent portions abut against the annular retaining ring.
[0014] Furthermore, the bent portion is bent toward a side away from the wave absorbing element, and a plurality of notches are formed on the bent portion.
[0015] Furthermore, the fixing member spans across the interior of the cover body and abuts against inner walls on both sides of the cover body.
[0016] Furthermore, the fixing member and the cover body are integrally formed.
[0017] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:
[0018] This design adopts the method of adding blocking metal shrapnel and absorbing material at the optical port of the device to make it match the device, and at the same time, the airtightness of the shielding is increased by the cooperation of the base and the upper cover. The absorbing material can further absorb the interference signal to achieve the effect of optimizing EMC / EMI. The close design of the absorbing part and the elastic part, and the interference fit after assembly in the card slot, ensure the fixing effect of the columnar device in the cover body, so that the product's ability to resist external interference is enhanced, and it works normally in an environment where it is allowed to be used. All performance indicators are guaranteed to be normal. At the same time, the internal interference of the product will not affect the performance of the product, and will not have adverse effects on other products, optimizing the EMC performance of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 A schematic diagram of the external structure of a cover body for optimizing the EMC performance of an optical module provided in an embodiment of the utility model;
[0020] Figure 2 for Figure 1 The schematic diagram of the internal structure after part of the cover is hidden;
[0021] Figure 3 for Figure 2 The schematic diagram of the structure after some columnar devices are hidden;
[0022] Figure 4 for Figure 3 A schematic diagram of the structure after the absorbing member and the elastic member are taken out;
[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0024] 1. Cover body; 2. Columnar device; 3. Wave absorbing member; 4. Elastic member; 41. Main body; 42. Bending portion; 5. Fixing member. DETAILED DESCRIPTION
[0025] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0027] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.
[0028] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.
[0029] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.
[0030] like Figure 1-4As shown, a structure for optimizing the EMC performance of an optical module includes a cover body 1. The cover body 1 is formed by splicing an upper cover and a lower cover to form a sealing structure. The lower cover is a box-shaped body, and various components are placed inside. The columnar device 2 corresponding to the optical port is laid inside the cover body 1 and arranged along the long side of the cover body 1. An annular retaining ring is arranged on the column of the columnar device 2. A fixing part 5 for fixing the columnar device 2 is designed inside the lower cover. A card slot is opened in the fixing part 5, and the annular retaining ring is embedded in the card slot to form a preliminary fixation. Because the tolerance of plastic parts and other products after injection molding will cause a gap between the annular retaining ring and the fixing part 5, which will cause slight shaking of the optical port components and affect the product performance. In this solution, the card slot is designed to be wider, and an absorber 3 and an elastic part 4 are inserted inside it to fill the gap.
[0031] The absorbing member 3 is sleeved on the cylindrical device 2 and fixedly connected with the inner wall of the cover body 1; the elastic member 4 is sleeved between the absorbing member 3 and the annular retaining ring and fixedly connected with the inner wall of the cover body 1. The absorbing member 3 and the elastic member 4 are embedded in the card slot, and the absorbing member 3 and the elastic member 4 are respectively in contact with the inner walls on both sides of the card slot. The two sides of the fixing member 5 are provided with arc-shaped grooves corresponding to the cylindrical device 2, and the absorbing member 3 and the elastic member 4 are provided with through holes corresponding to the cylindrical device 2. The elastic member 4 is located on the side of the card slot closer to the annular retaining ring, and the absorbing member 3 and the elastic member 4 are arranged close to each other. This design adopts the method of adding a blocking metal elastic member 4 and an absorbing material at the optical port position of the device to make it match the device, and at the same time, the airtightness of the shielding is increased by the cooperation of the lower cover and the upper cover. The absorbing material can further absorb the interference signal to achieve the effect of optimizing EMC / EMI.
[0032] In order to facilitate assembly and retain the interference fit effect of the elastic member 4, the elastic member 4 includes a main body 41 and a bent portion 42 that are connected in one piece. The bent portions 42 are respectively arranged on both sides of the main body 41. The bent portion 42 is bent toward the side away from the absorbing member 3. A plurality of notches are provided on the bent portion 42. The bent portion 42 abuts against the annular retaining ring. The design of the bent portion 42 enables the elastic member 4 to fill the gap in the slot, and the gap is used to reserve space during assembly.
[0033] Specifically, the fixing member 5 spans across the interior of the cover body 1 and abuts against the inner walls on both sides of the cover body 1 .
[0034] Preferably, the fixing member 5 and the cover body 1 are integrally formed.
[0035] The close fit design of the absorbing component 3 and the elastic component 4, and the interference fit after assembly in the slot, ensure the fixing effect of the columnar component 2 in the cover body 1, so that the product's ability to resist external interference is enhanced, and it works normally in an environment where use is allowed. All performance indicators are guaranteed to be normal. At the same time, the internal interference of the product will not affect the performance of the product and will not have adverse effects on other products, thereby optimizing the EMC performance of the product.
[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A structure for optimizing the EMC performance of optical modules. It is characterized in that include: Cover body; A columnar component is laid in the cover body and is provided with an annular retaining ring; The wave absorbing member is sleeved on the columnar member and fixedly connected with the inner wall of the cover; The elastic member is sleeved between the wave absorbing member and the annular retaining ring, and is clamped and fixed with the inner wall of the cover.
2. A structure for optimizing EMC performance of an optical module according to claim 1, It is characterized in that A fixing piece is arranged in the cover body, a slot is arranged in the fixing piece, the wave absorbing piece and the elastic piece are embedded in the slot, and the wave absorbing piece and the elastic piece are respectively in contact with inner walls on both sides of the slot.
3. A structure for optimizing EMC performance of an optical module according to claim 2, It is characterized in that Arc grooves corresponding to the columnar components are formed on both sides of the fixing component, and through holes corresponding to the columnar components are formed on the wave absorbing component and the elastic component.
4. A structure for optimizing EMC performance of an optical module according to claim 2, It is characterized in that The elastic member comprises a main body portion and a bent portion which are integrally connected, the bent portions are respectively arranged on both sides of the main body portion, and the bent portions are in contact with the annular retaining ring.
5. A structure for optimizing EMC performance of an optical module according to claim 4, It is characterized in that The bent portion is bent toward a side away from the wave absorbing member, and a plurality of notches are formed on the bent portion.
6. A structure for optimizing EMC performance of an optical module according to claim 2, It is characterized in that The fixing member spans across the interior of the cover body and abuts against inner walls on both sides of the cover body.
7. The structure for optimizing the EMC performance of an optical module according to claim 2, It is characterized in that The fixing member is integrally formed with the cover body.