Active optical cable produced through EMI forming

Abstract

The utility model provides an active optical cable produced through EMI forming, which comprises a photoelectric module used for photoelectric conversion and electro-optical conversion, a first colloid protection assembly is wrapped outside the photoelectric module, a second colloid protection assembly is wrapped outside the first colloid protection assembly, a shielding piece is wrapped outside the second colloid protection assembly, and the shielding piece is provided with a shielding layer. A protection piece is arranged on the outer side of the shielding piece, and a sealing assembly is arranged on the outer side of the protection piece. The active optical cable produced through EMI forming has the advantages of being excellent in electronic shielding interference resistance, high in strength, light in weight, convenient to produce, machine and form and the like, and has great use value.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical fiber product design technical field especially relates to a through EMI forming production active optical cable. BACKGROUND

[0002] With the development of modern communication technology, high density, high bandwidth application is more and more, at this time passive optical cable or cable system based on copper wire just shows the catch the eye and see the elbow. Under this condition, active optical cable product emerges as the times require, compared with traditional cable, active optical cable has transmission rate high, transmission distance long, use convenient and so on many advantages, active optical cable has been widely used in many fields. However, since active optical cable integrates precise integrated circuit chip, optical lens and various high-speed circuit boards and other complex elements, it puts forward high requirements to the structure protection design of product, and with a large number of active optical cable in limited space high-density wiring environment, the complex electromagnetic environment formed influences active optical cable data transmission, causes the increase of data transmission error code or data link flashout. And with the continuous cognition of people to electromagnetic compatibility, the degree of attention to electromagnetic compatibility gradually increases, especially for electronic consumer products, the requirement is higher. Therefore, how to make active optical cable product have higher electromagnetic compatibility, and have reliable structure for various occasions, is the problem that all operation manufacturers are considering and researching at present. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses an active optical cable through EMI forming production with superior anti-electronic shielding interference performance, high strength, light weight, convenient production and processing forming.

[0004] The utility model provides a kind of active optical cable through EMI forming production, including photoelectric module for photoelectric conversion and electro-optical conversion,

[0005] The photoelectric module is coated with first gel protection component,

[0006] The first gel protection component is coated with second gel protection component,

[0007] The second gel protection component is coated with shielding member,

[0008] The shielding member is provided with protection member outside,

[0009] Sealing assembly is arranged outside the protection member.

[0010] Further, the first gel protection component is insulating glue, for avoiding short circuit.

[0011] Further, the second gel protection component is high-temperature glue.

[0012] Further, the shielding member comprises a metal copper foil shielding member.

[0013] Further, the protection member is a metal tinplate.

[0014] Further, the sealing assembly is a metal sleeve protective outer mold.

[0015] The beneficial effects of the present application are:

[0016] The utility model provides a kind of over EMI forming production active optical cable with the advantages of superior anti-electronic shield interference performance, high strength, light weight, easy production and processing forming etc., in the design process of the present application, photoelectric module is insulated by gluing and high-temperature glue wrapping, then all components on photoelectric module, copper wire welding point and the part of copper wire protruding outside covering are wrapped with double-sided conductive copper foil, and then tin-plated copper wire shielding layer with coverage of 85% is used;After module cable processing, cable shielding layer and module connector are respectively compressed with the tail and head of tinplate at both ends to form a loop through tinplate shell, and then aluminum alloy sleeve is injection molded together, and finally grounding shielding is completed by equipment grounding at both ends.The present application can achieve professional-level electromagnetic shielding interference in places with relatively high electromagnetic compatibility environment requirements, and using sleeve injection molding can ensure the high strength of cable and maintain very light weight, with great use value. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor.

[0018] Figure 1 is a structural schematic diagram of the utility model over EMI forming production active optical cable;

[0019] Figure 2 is a cross-sectional structural schematic diagram of the utility model over EMI forming production active optical cable;

[0020] Figure 3 is a schematic diagram of the utility model over EMI forming production active optical cable when covering insulating glue and high-temperature glue;

[0021] Figure 4 is a schematic diagram of the utility model over EMI forming production active optical cable when covering shielding copper foil;

[0022] Figure 5 is a schematic diagram of the utility model over EMI forming production active optical cable when covering metal tinplate.

[0023] Figure 6 is a schematic view of the EMI forming production of the active optical cable when the aluminum alloy sleeve and the protective outer mold are integrally formed;

[0024] Figure 7 is a performance detection diagram of the EMI forming production of the active optical cable. DETAILED DESCRIPTION

[0025] In order to make the personnel in the technical field better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] As shown in Figures 1-2 The present application provides an EMI forming production of an active optical cable. The present application provides an EMI forming production of an active optical cable, which comprises an optoelectronic module 1 for photoelectric conversion and electro-optical conversion,

[0027] The optoelectronic module 1 is coated with a first gel protection assembly 2,

[0028] The first gel protection assembly 2 is coated with a second gel protection assembly 3,

[0029] The second gel protection assembly 3 is coated with a shielding member 4,

[0030] The shielding member 4 is provided with a protection member 5 on the outer side,

[0031] The protection member 5 is provided with a sealing assembly 6 on the outer side.

[0032] In this embodiment, the first gel protection assembly 2 is insulating glue, which is used to avoid short circuit.

[0033] In this embodiment, the second gel protection assembly 3 is high-temperature glue.

[0034] In this embodiment, the shielding member 4 comprises a copper foil shielding member 4.

[0035] In this embodiment, the protection member 5 is a metal tinplate.

[0036] In this embodiment, the sealing assembly 6 is a metal sleeve protective outer mold.

[0037] The detailed details of the present embodiment will be further described below:

[0038] In this application, the optoelectronic module 1 can realize photoelectric conversion and electro-optic conversion functions.

[0039] like Figure 3 As shown, the insulating adhesive has two rows of 19 pins at the connection between the optoelectronic module connector head and the PCB board.

[0040] UV adhesive needs to be applied for insulation; avoid pressing copper foil on it to prevent short circuits.

[0041] High-temperature adhesive is used to wrap the components on both sides of the optoelectronic module PCB board to prevent copper foil from pressing on and causing short circuits.

[0042] like Figure 4 As shown, the shielding copper foil in this solution is selected with excellent conductivity and shielding properties. The high temperature resistance of the copper foil can ensure that the performance of the product is not affected when used in various complex environments (such as high temperature, high humidity, and low temperature). The copper foil wraps around all parts except the connector head, effectively shielding electromagnetic interference, so that it is not disturbed at all during use.

[0043] like Figure 5 As shown, the metal tinplate is made of special hot-dip galvanized steel sheet. The front of the two metal tinplates presses against the connector, and the rear presses against one end of the tinned copper wire of the cable, forming a grounding and conductive loop to achieve the effect of shielding electromagnetic interference.

[0044] like Figure 6 As shown, by integrally molding the aluminum alloy sleeve and the protective outer mold, the contact between the metal tinplate shield and the air is cut off, thereby improving electromagnetic compatibility performance. This also makes the overall structure more reliable.

[0045] The product's grounding shield extends from the source end's grounding metal head, through the metal tinplate and shielding copper foil, the cable's metal shielding layer, to the output end's metal tinplate and shielding copper foil, and finally the grounding connector, forming a complete grounding shield. Additionally, an aluminum alloy sleeve and protective outer film enclose the entire metal tinplate, resulting in superior electromagnetic compatibility performance. Test results are as follows... Figure 7 As shown,

[0046] The utility model provides a kind of active optical cable with EMI forming production has the advantages such as superior electronic shield interference resistance performance, high strength, light weight, easy production and processing forming, etc., in the design process of the application, photoelectric module 1 is insulated by gluing and high-temperature glue wrapping, then all components on photoelectric module 1 are wrapped with double-sided conductive copper foil, copper wire welding point and the part of copper wire extending outside the sheath, then tin-plated copper wire shielding layer with coverage of 85% is used;After module cable processing, cable shielding layer and module connector are respectively compressed with tail and head of two ends of tinplate, and loop is formed through tinplate shell, plus aluminum alloy sleeve together injection molding, finally, grounding is completed by equipment two ends grounding shielding.The electromagnetic shielding interference of the application reaches professional level in the place with relatively high electromagnetic compatibility environment requirement, and sleeve injection molding is used, which ensures the high strength of cable and keeps the weight very light, with great use value.

[0047] Finally, it should be noted that: the utility model embodiment discloses only the preferred embodiment of the utility model, and is used for describing the technical scheme of the utility model, not for limiting it;Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that;It can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features;And these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the utility model embodiments.

Claims

1. An EMI-overmolded production active optical cable, characterized by: The photoelectric module for photoelectric conversion and electro-optical conversion, The photoelectric module is coated with a first gel protection component, The first gel protection component is coated with a second gel protection component, The second gel protection component is coated with a shielding member, The shielding member is provided with a protection member on the outside, The protection member is provided with a sealing assembly on the outside.

2. The EMI shielding active optical cable produced by molding according to claim 1, characterized in that: The first gel protection component is insulating glue, which is used to avoid short circuit.

3. The EMI shielding active optical cable produced by molding according to claim 1, characterized in that: The second gel protection component is high-temperature glue.

4. The EMI shielding active optical cable produced by molding according to claim 1, characterized in that: The shielding member includes a copper foil shielding member.

5. The EMI shielding active optical cable produced by molding according to claim 1, characterized in that: The protection member is a metal can.

6. The EMI shielding active optical cable produced by molding according to claim 1, characterized in that: The sealing assembly is a metal sleeve protective outer mold.

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